chore: release packages (#393)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

README.md

@@ -49,7 +49,12 @@ npm install @esengine/ecs-framework
 | **Timer** | Timer and cooldown systems | No |
 | **Spatial** | Spatial indexing and queries (QuadTree, Grid) | No |
 | **Pathfinding** | A* and navigation mesh pathfinding | No |
-| **Network** | Client/server networking with TSRPC | No |
+| **Procgen** | Procedural generation (noise, random, sampling) | No |
+| **RPC** | High-performance RPC communication framework | No |
+| **Server** | Game server framework with rooms, auth, rate limiting | No |
+| **Network** | Client networking with prediction, AOI, delta compression | No |
+| **Transaction** | Game transaction system with Redis/Memory storage | No |
+| **World Streaming** | Open world chunk loading and streaming | No |
 
 > All framework modules can be used standalone with any rendering engine.
 
@@ -199,7 +204,12 @@ npm install @esengine/fsm                # State machines
 npm install @esengine/timer              # Timers & cooldowns
 npm install @esengine/spatial            # Spatial indexing
 npm install @esengine/pathfinding        # Pathfinding
-npm install @esengine/network            # Networking
+npm install @esengine/procgen            # Procedural generation
+npm install @esengine/rpc                # RPC framework
+npm install @esengine/server             # Game server
+npm install @esengine/network            # Client networking
+npm install @esengine/transaction        # Transaction system
+npm install @esengine/world-streaming    # World streaming
 ```
 
 ### ESEngine Runtime (Optional)
@@ -235,7 +245,11 @@ esengine/
 │   │   ├── spatial/       # Spatial queries
 │   │   ├── pathfinding/   # Pathfinding
 │   │   ├── procgen/       # Procedural generation
-│   │   └── network/       # Networking
+│   │   ├── rpc/           # RPC framework
+│   │   ├── server/        # Game server
+│   │   ├── network/       # Client networking
+│   │   ├── transaction/   # Transaction system
+│   │   └── world-streaming/ # World streaming
 │   │
 │   ├── engine/            # ESEngine runtime
 │   ├── rendering/         # Rendering modules

README_CN.md

@@ -49,7 +49,12 @@ npm install @esengine/ecs-framework
 | **定时器** | 定时器和冷却系统 | 否 |
 | **空间索引** | 空间查询（四叉树、网格） | 否 |
 | **寻路** | A* 和导航网格寻路 | 否 |
-| **网络** | 客户端/服务端网络通信 (TSRPC) | 否 |
+| **程序化生成** | 噪声、随机、采样等生成算法 | 否 |
+| **RPC** | 高性能 RPC 通信框架 | 否 |
+| **服务端** | 游戏服务器框架，支持房间、认证、速率限制 | 否 |
+| **网络** | 客户端网络，支持预测、AOI、增量压缩 | 否 |
+| **事务系统** | 游戏事务系统，支持 Redis/内存存储 | 否 |
+| **世界流送** | 开放世界分块加载和流送 | 否 |
 
 > 所有框架模块都可以独立使用，无需依赖特定渲染引擎。
 
@@ -199,7 +204,12 @@ npm install @esengine/fsm                # 状态机
 npm install @esengine/timer              # 定时器和冷却
 npm install @esengine/spatial            # 空间索引
 npm install @esengine/pathfinding        # 寻路
-npm install @esengine/network            # 网络
+npm install @esengine/procgen            # 程序化生成
+npm install @esengine/rpc                # RPC 框架
+npm install @esengine/server             # 游戏服务器
+npm install @esengine/network            # 客户端网络
+npm install @esengine/transaction        # 事务系统
+npm install @esengine/world-streaming    # 世界流送
 ```
 
 ### ESEngine 运行时（可选）
@@ -235,7 +245,11 @@ esengine/
 │   │   ├── spatial/       # 空间查询
 │   │   ├── pathfinding/   # 寻路
 │   │   ├── procgen/       # 程序化生成
-│   │   └── network/       # 网络
+│   │   ├── rpc/           # RPC 框架
+│   │   ├── server/        # 游戏服务器
+│   │   ├── network/       # 客户端网络
+│   │   ├── transaction/   # 事务系统
+│   │   └── world-streaming/ # 世界流送
 │   │
 │   ├── engine/            # ESEngine 运行时
 │   ├── rendering/         # 渲染模块

docs/astro.config.mjs

@@ -267,6 +267,8 @@ export default defineConfig({
                 { label: '概述', slug: 'modules/network', translations: { en: 'Overview' } },
                 { label: '客户端', slug: 'modules/network/client', translations: { en: 'Client' } },
                 { label: '服务器', slug: 'modules/network/server', translations: { en: 'Server' } },
+                { label: '认证系统', slug: 'modules/network/auth', translations: { en: 'Authentication' } },
+                { label: '速率限制', slug: 'modules/network/rate-limit', translations: { en: 'Rate Limiting' } },
                 { label: '状态同步', slug: 'modules/network/sync', translations: { en: 'State Sync' } },
                 { label: '客户端预测', slug: 'modules/network/prediction', translations: { en: 'Prediction' } },
                 { label: 'AOI 兴趣区域', slug: 'modules/network/aoi', translations: { en: 'AOI' } },

docs/src/content/docs/en/modules/network/auth.md

@@ -0,0 +1,506 @@
+---
+title: "Authentication"
+description: "Add authentication to your game server with JWT and Session providers"
+---
+
+The `@esengine/server` package includes a pluggable authentication system that supports JWT, session-based auth, and custom providers.
+
+## Installation
+
+Authentication is included in the server package:
+
+```bash
+npm install @esengine/server jsonwebtoken
+```
+
+> Note: `jsonwebtoken` is an optional peer dependency, required only for JWT authentication.
+
+## Quick Start
+
+### JWT Authentication
+
+```typescript
+import { createServer } from '@esengine/server'
+import { withAuth, createJwtAuthProvider, withRoomAuth, requireAuth } from '@esengine/server/auth'
+
+// Create JWT provider
+const jwtProvider = createJwtAuthProvider({
+    secret: process.env.JWT_SECRET!,
+    expiresIn: 3600, // 1 hour
+})
+
+// Wrap server with authentication
+const server = withAuth(await createServer({ port: 3000 }), {
+    provider: jwtProvider,
+    extractCredentials: (req) => {
+        const url = new URL(req.url ?? '', 'http://localhost')
+        return url.searchParams.get('token')
+    },
+})
+
+// Define authenticated room
+class GameRoom extends withRoomAuth(Room, { requireAuth: true }) {
+    onJoin(player) {
+        console.log(`${player.user?.name} joined!`)
+    }
+}
+
+server.define('game', GameRoom)
+await server.start()
+```
+
+## Auth Providers
+
+### JWT Provider
+
+Use JSON Web Tokens for stateless authentication:
+
+```typescript
+import { createJwtAuthProvider } from '@esengine/server/auth'
+
+const jwtProvider = createJwtAuthProvider({
+    // Required: secret key
+    secret: 'your-secret-key',
+
+    // Optional: algorithm (default: HS256)
+    algorithm: 'HS256',
+
+    // Optional: expiration in seconds (default: 3600)
+    expiresIn: 3600,
+
+    // Optional: issuer for validation
+    issuer: 'my-game-server',
+
+    // Optional: audience for validation
+    audience: 'my-game-client',
+
+    // Optional: custom user extraction
+    getUser: async (payload) => {
+        // Fetch user from database
+        return await db.users.findById(payload.sub)
+    },
+})
+
+// Sign a token (for login endpoints)
+const token = jwtProvider.sign({
+    sub: user.id,
+    name: user.name,
+    roles: ['player'],
+})
+
+// Decode without verification (for debugging)
+const payload = jwtProvider.decode(token)
+```
+
+### Session Provider
+
+Use server-side sessions for stateful authentication:
+
+```typescript
+import { createSessionAuthProvider, type ISessionStorage } from '@esengine/server/auth'
+
+// Custom storage implementation
+const storage: ISessionStorage = {
+    async get<T>(key: string): Promise<T | null> {
+        return await redis.get(key)
+    },
+    async set<T>(key: string, value: T): Promise<void> {
+        await redis.set(key, value)
+    },
+    async delete(key: string): Promise<boolean> {
+        return await redis.del(key) > 0
+    },
+}
+
+const sessionProvider = createSessionAuthProvider({
+    storage,
+    sessionTTL: 86400000, // 24 hours in ms
+
+    // Optional: validate user on each request
+    validateUser: (user) => !user.banned,
+})
+
+// Create session (for login endpoints)
+const sessionId = await sessionProvider.createSession(user, {
+    ipAddress: req.ip,
+    userAgent: req.headers['user-agent'],
+})
+
+// Revoke session (for logout)
+await sessionProvider.revoke(sessionId)
+```
+
+## Server Auth Mixin
+
+The `withAuth` function wraps your server to add authentication:
+
+```typescript
+import { withAuth } from '@esengine/server/auth'
+
+const server = withAuth(baseServer, {
+    // Required: auth provider
+    provider: jwtProvider,
+
+    // Required: extract credentials from request
+    extractCredentials: (req) => {
+        // From query string
+        return new URL(req.url, 'http://localhost').searchParams.get('token')
+
+        // Or from headers
+        // return req.headers['authorization']?.replace('Bearer ', '')
+    },
+
+    // Optional: handle auth failure
+    onAuthFailed: (conn, error) => {
+        console.log(`Auth failed: ${error}`)
+    },
+})
+```
+
+### Accessing Auth Context
+
+After authentication, the auth context is available on connections:
+
+```typescript
+import { getAuthContext } from '@esengine/server/auth'
+
+server.onConnect = (conn) => {
+    const auth = getAuthContext(conn)
+
+    if (auth.isAuthenticated) {
+        console.log(`User ${auth.userId} connected`)
+        console.log(`Roles: ${auth.roles}`)
+    }
+}
+```
+
+## Room Auth Mixin
+
+The `withRoomAuth` function adds authentication checks to rooms:
+
+```typescript
+import { withRoomAuth, type AuthPlayer } from '@esengine/server/auth'
+
+interface User {
+    id: string
+    name: string
+    roles: string[]
+}
+
+class GameRoom extends withRoomAuth<User>(Room, {
+    // Require authentication to join
+    requireAuth: true,
+
+    // Optional: require specific roles
+    allowedRoles: ['player', 'premium'],
+
+    // Optional: role check mode ('any' or 'all')
+    roleCheckMode: 'any',
+}) {
+    // player has .auth and .user properties
+    onJoin(player: AuthPlayer<User>) {
+        console.log(`${player.user?.name} joined`)
+        console.log(`Is premium: ${player.auth.hasRole('premium')}`)
+    }
+
+    // Optional: custom auth validation
+    async onAuth(player: AuthPlayer<User>): Promise<boolean> {
+        // Additional validation logic
+        if (player.auth.hasRole('banned')) {
+            return false
+        }
+        return true
+    }
+
+    @onMessage('Chat')
+    handleChat(data: { text: string }, player: AuthPlayer<User>) {
+        this.broadcast('Chat', {
+            from: player.user?.name ?? 'Guest',
+            text: data.text,
+        })
+    }
+}
+```
+
+### AuthPlayer Interface
+
+Players in auth rooms have additional properties:
+
+```typescript
+interface AuthPlayer<TUser> extends Player {
+    // Full auth context
+    readonly auth: IAuthContext<TUser>
+
+    // User info (shortcut for auth.user)
+    readonly user: TUser | null
+}
+```
+
+### Room Auth Helpers
+
+```typescript
+class GameRoom extends withRoomAuth<User>(Room) {
+    someMethod() {
+        // Get player by user ID
+        const player = this.getPlayerByUserId('user-123')
+
+        // Get all players with a role
+        const admins = this.getPlayersByRole('admin')
+
+        // Get player with auth info
+        const authPlayer = this.getAuthPlayer(playerId)
+    }
+}
+```
+
+## Auth Decorators
+
+### @requireAuth
+
+Mark message handlers as requiring authentication:
+
+```typescript
+import { requireAuth, requireRole, onMessage } from '@esengine/server/auth'
+
+class GameRoom extends withRoomAuth(Room) {
+    @requireAuth()
+    @onMessage('Trade')
+    handleTrade(data: TradeData, player: AuthPlayer) {
+        // Only authenticated players can trade
+    }
+
+    @requireAuth({ allowGuest: true })
+    @onMessage('Chat')
+    handleChat(data: ChatData, player: AuthPlayer) {
+        // Guests can also chat
+    }
+}
+```
+
+### @requireRole
+
+Require specific roles for message handlers:
+
+```typescript
+class AdminRoom extends withRoomAuth(Room) {
+    @requireRole('admin')
+    @onMessage('Ban')
+    handleBan(data: BanData, player: AuthPlayer) {
+        // Only admins can ban
+    }
+
+    @requireRole(['moderator', 'admin'])
+    @onMessage('Mute')
+    handleMute(data: MuteData, player: AuthPlayer) {
+        // Moderators OR admins can mute
+    }
+
+    @requireRole(['verified', 'premium'], { mode: 'all' })
+    @onMessage('SpecialFeature')
+    handleSpecial(data: any, player: AuthPlayer) {
+        // Requires BOTH verified AND premium roles
+    }
+}
+```
+
+## Auth Context API
+
+The auth context provides various methods for checking authentication state:
+
+```typescript
+interface IAuthContext<TUser> {
+    // Authentication state
+    readonly isAuthenticated: boolean
+    readonly user: TUser | null
+    readonly userId: string | null
+    readonly roles: ReadonlyArray<string>
+    readonly authenticatedAt: number | null
+    readonly expiresAt: number | null
+
+    // Role checking
+    hasRole(role: string): boolean
+    hasAnyRole(roles: string[]): boolean
+    hasAllRoles(roles: string[]): boolean
+}
+```
+
+The `AuthContext` class (implementation) also provides:
+
+```typescript
+class AuthContext<TUser> implements IAuthContext<TUser> {
+    // Set authentication from result
+    setAuthenticated(result: AuthResult<TUser>): void
+
+    // Clear authentication state
+    clear(): void
+}
+```
+
+## Testing
+
+Use the mock auth provider for unit tests:
+
+```typescript
+import { createMockAuthProvider } from '@esengine/server/auth/testing'
+
+// Create mock provider with preset users
+const mockProvider = createMockAuthProvider({
+    users: [
+        { id: '1', name: 'Alice', roles: ['player'] },
+        { id: '2', name: 'Bob', roles: ['admin', 'player'] },
+    ],
+    autoCreate: true, // Create users for unknown tokens
+})
+
+// Use in tests
+const server = withAuth(testServer, {
+    provider: mockProvider,
+    extractCredentials: (req) => req.headers['x-token'],
+})
+
+// Verify with user ID as token
+const result = await mockProvider.verify('1')
+// result.user = { id: '1', name: 'Alice', roles: ['player'] }
+
+// Add/remove users dynamically
+mockProvider.addUser({ id: '3', name: 'Charlie', roles: ['guest'] })
+mockProvider.removeUser('3')
+
+// Revoke tokens
+await mockProvider.revoke('1')
+
+// Reset to initial state
+mockProvider.clear()
+```
+
+## Error Handling
+
+Auth errors include error codes for programmatic handling:
+
+```typescript
+type AuthErrorCode =
+    | 'INVALID_CREDENTIALS'       // Invalid username/password
+    | 'INVALID_TOKEN'             // Token is malformed or invalid
+    | 'EXPIRED_TOKEN'             // Token has expired
+    | 'USER_NOT_FOUND'            // User lookup failed
+    | 'ACCOUNT_DISABLED'          // User account is disabled
+    | 'RATE_LIMITED'              // Too many requests
+    | 'INSUFFICIENT_PERMISSIONS'  // Insufficient permissions
+
+// In your auth failure handler
+const server = withAuth(baseServer, {
+    provider: jwtProvider,
+    extractCredentials,
+    onAuthFailed: (conn, error) => {
+        switch (error.errorCode) {
+            case 'EXPIRED_TOKEN':
+                conn.send('AuthError', { code: 'TOKEN_EXPIRED' })
+                break
+            case 'INVALID_TOKEN':
+                conn.send('AuthError', { code: 'INVALID_TOKEN' })
+                break
+            default:
+                conn.close()
+        }
+    },
+})
+```
+
+## Complete Example
+
+Here's a complete example with JWT authentication:
+
+```typescript
+// server.ts
+import { createServer } from '@esengine/server'
+import {
+    withAuth,
+    withRoomAuth,
+    createJwtAuthProvider,
+    requireAuth,
+    requireRole,
+    type AuthPlayer,
+} from '@esengine/server/auth'
+
+// Types
+interface User {
+    id: string
+    name: string
+    roles: string[]
+}
+
+// JWT Provider
+const jwtProvider = createJwtAuthProvider<User>({
+    secret: process.env.JWT_SECRET!,
+    expiresIn: 3600,
+    getUser: async (payload) => ({
+        id: payload.sub as string,
+        name: payload.name as string,
+        roles: (payload.roles as string[]) ?? [],
+    }),
+})
+
+// Create authenticated server
+const server = withAuth(
+    await createServer({ port: 3000 }),
+    {
+        provider: jwtProvider,
+        extractCredentials: (req) => {
+            return new URL(req.url ?? '', 'http://localhost')
+                .searchParams.get('token')
+        },
+    }
+)
+
+// Game Room with auth
+class GameRoom extends withRoomAuth<User>(Room, {
+    requireAuth: true,
+    allowedRoles: ['player'],
+}) {
+    onCreate() {
+        console.log('Game room created')
+    }
+
+    onJoin(player: AuthPlayer<User>) {
+        console.log(`${player.user?.name} joined!`)
+        this.broadcast('PlayerJoined', {
+            id: player.id,
+            name: player.user?.name,
+        })
+    }
+
+    @requireAuth()
+    @onMessage('Move')
+    handleMove(data: { x: number; y: number }, player: AuthPlayer<User>) {
+        // Handle movement
+    }
+
+    @requireRole('admin')
+    @onMessage('Kick')
+    handleKick(data: { playerId: string }, player: AuthPlayer<User>) {
+        const target = this.getPlayer(data.playerId)
+        if (target) {
+            this.kick(target, 'Kicked by admin')
+        }
+    }
+}
+
+server.define('game', GameRoom)
+await server.start()
+```
+
+## Best Practices
+
+1. **Secure your secrets**: Never hardcode JWT secrets. Use environment variables.
+
+2. **Set reasonable expiration**: Balance security and user experience when setting token TTL.
+
+3. **Validate on critical actions**: Use `@requireAuth` on sensitive message handlers.
+
+4. **Use role-based access**: Implement proper role hierarchy for admin functions.
+
+5. **Handle token refresh**: Implement token refresh logic for long sessions.
+
+6. **Log auth events**: Track login attempts and failures for security monitoring.
+
+7. **Test auth flows**: Use `MockAuthProvider` to test authentication scenarios.

docs/src/content/docs/en/modules/network/rate-limit.md

@@ -0,0 +1,458 @@
+---
+title: "Rate Limiting"
+description: "Protect your game server from abuse with configurable rate limiting"
+---
+
+The `@esengine/server` package includes a pluggable rate limiting system to protect against DDoS attacks, message flooding, and other abuse.
+
+## Installation
+
+Rate limiting is included in the server package:
+
+```bash
+npm install @esengine/server
+```
+
+## Quick Start
+
+```typescript
+import { Room, onMessage } from '@esengine/server'
+import { withRateLimit, rateLimit, noRateLimit } from '@esengine/server/ratelimit'
+
+class GameRoom extends withRateLimit(Room, {
+    messagesPerSecond: 10,
+    burstSize: 20,
+    onLimited: (player, type, result) => {
+        player.send('Error', {
+            code: 'RATE_LIMITED',
+            retryAfter: result.retryAfter,
+        })
+    },
+}) {
+    @onMessage('Move')
+    handleMove(data: { x: number; y: number }, player: Player) {
+        // Protected by rate limit (10 msg/s default)
+    }
+
+    @rateLimit({ messagesPerSecond: 1 })
+    @onMessage('Trade')
+    handleTrade(data: TradeData, player: Player) {
+        // Stricter limit for trading
+    }
+
+    @noRateLimit()
+    @onMessage('Heartbeat')
+    handleHeartbeat(data: any, player: Player) {
+        // No rate limit for heartbeat
+    }
+}
+```
+
+## Rate Limit Strategies
+
+### Token Bucket (Default)
+
+The token bucket algorithm allows burst traffic while maintaining long-term rate limits. Tokens are added at a fixed rate, and each request consumes tokens.
+
+```typescript
+import { withRateLimit } from '@esengine/server/ratelimit'
+
+class GameRoom extends withRateLimit(Room, {
+    strategy: 'token-bucket',
+    messagesPerSecond: 10, // Refill rate
+    burstSize: 20,         // Bucket capacity
+}) { }
+```
+
+**How it works:**
+```
+Config: rate=10/s, burstSize=20
+
+[0s]   Bucket full: 20 tokens
+[0s]   15 messages → allowed, 5 remaining
+[0.5s] Refill 5 tokens → 10 tokens
+[0.5s] 8 messages → allowed, 2 remaining
+[0.6s] Refill 1 token → 3 tokens
+[0.6s] 5 messages → 3 allowed, 2 rejected
+```
+
+**Best for:** Most general use cases, balances burst tolerance with protection.
+
+### Sliding Window
+
+The sliding window algorithm precisely tracks requests within a time window. More accurate than fixed window but uses slightly more memory.
+
+```typescript
+class GameRoom extends withRateLimit(Room, {
+    strategy: 'sliding-window',
+    messagesPerSecond: 10,
+    burstSize: 10,
+}) { }
+```
+
+**Best for:** When you need precise rate limiting without burst tolerance.
+
+### Fixed Window
+
+The fixed window algorithm divides time into fixed intervals and counts requests per interval. Simple and memory-efficient but allows 2x burst at window boundaries.
+
+```typescript
+class GameRoom extends withRateLimit(Room, {
+    strategy: 'fixed-window',
+    messagesPerSecond: 10,
+    burstSize: 10,
+}) { }
+```
+
+**Best for:** Simple scenarios where boundary burst is acceptable.
+
+## Configuration
+
+### Room Configuration
+
+```typescript
+import { withRateLimit } from '@esengine/server/ratelimit'
+
+class GameRoom extends withRateLimit(Room, {
+    // Messages allowed per second (default: 10)
+    messagesPerSecond: 10,
+
+    // Burst capacity / bucket size (default: 20)
+    burstSize: 20,
+
+    // Strategy: 'token-bucket' | 'sliding-window' | 'fixed-window'
+    strategy: 'token-bucket',
+
+    // Callback when rate limited
+    onLimited: (player, messageType, result) => {
+        player.send('RateLimited', {
+            type: messageType,
+            retryAfter: result.retryAfter,
+        })
+    },
+
+    // Disconnect on rate limit (default: false)
+    disconnectOnLimit: false,
+
+    // Disconnect after N consecutive limits (0 = never)
+    maxConsecutiveLimits: 10,
+
+    // Custom key function (default: player.id)
+    getKey: (player) => player.id,
+
+    // Cleanup interval in ms (default: 60000)
+    cleanupInterval: 60000,
+}) { }
+```
+
+### Per-Message Configuration
+
+Use decorators to configure rate limits for specific messages:
+
+```typescript
+import { rateLimit, noRateLimit, rateLimitMessage } from '@esengine/server/ratelimit'
+
+class GameRoom extends withRateLimit(Room) {
+    // Custom rate limit for this message
+    @rateLimit({ messagesPerSecond: 1, burstSize: 2 })
+    @onMessage('Trade')
+    handleTrade(data: TradeData, player: Player) { }
+
+    // This message costs 5 tokens
+    @rateLimit({ cost: 5 })
+    @onMessage('ExpensiveAction')
+    handleExpensive(data: any, player: Player) { }
+
+    // Exempt from rate limiting
+    @noRateLimit()
+    @onMessage('Heartbeat')
+    handleHeartbeat(data: any, player: Player) { }
+
+    // Alternative: specify message type explicitly
+    @rateLimitMessage('SpecialAction', { messagesPerSecond: 2 })
+    @onMessage('SpecialAction')
+    handleSpecial(data: any, player: Player) { }
+}
+```
+
+## Combining with Authentication
+
+Rate limiting works seamlessly with the authentication system:
+
+```typescript
+import { withRoomAuth } from '@esengine/server/auth'
+import { withRateLimit } from '@esengine/server/ratelimit'
+
+// Apply both mixins
+class GameRoom extends withRateLimit(
+    withRoomAuth(Room, { requireAuth: true }),
+    { messagesPerSecond: 10 }
+) {
+    onJoin(player: AuthPlayer) {
+        console.log(`${player.user?.name} joined with rate limit protection`)
+    }
+}
+```
+
+## Rate Limit Result
+
+When a message is rate limited, the callback receives a result object:
+
+```typescript
+interface RateLimitResult {
+    // Whether the request was allowed
+    allowed: boolean
+
+    // Remaining quota
+    remaining: number
+
+    // When the quota resets (timestamp)
+    resetAt: number
+
+    // How long to wait before retrying (ms)
+    retryAfter?: number
+}
+```
+
+## Accessing Rate Limit Context
+
+You can access the rate limit context for any player:
+
+```typescript
+import { getPlayerRateLimitContext } from '@esengine/server/ratelimit'
+
+class GameRoom extends withRateLimit(Room) {
+    someMethod(player: Player) {
+        const context = this.getRateLimitContext(player)
+
+        // Check without consuming
+        const status = context?.check()
+        console.log(`Remaining: ${status?.remaining}`)
+
+        // Get consecutive limit count
+        console.log(`Consecutive limits: ${context?.consecutiveLimitCount}`)
+    }
+}
+
+// Or use the standalone function
+const context = getPlayerRateLimitContext(player)
+```
+
+## Custom Strategies
+
+You can use the strategies directly for custom implementations:
+
+```typescript
+import {
+    TokenBucketStrategy,
+    SlidingWindowStrategy,
+    FixedWindowStrategy,
+    createTokenBucketStrategy,
+} from '@esengine/server/ratelimit'
+
+// Create strategy directly
+const strategy = createTokenBucketStrategy({
+    rate: 10,      // tokens per second
+    capacity: 20,  // max tokens
+})
+
+// Check and consume
+const result = strategy.consume('player-123')
+if (result.allowed) {
+    // Process message
+} else {
+    // Rate limited, wait result.retryAfter ms
+}
+
+// Check without consuming
+const status = strategy.getStatus('player-123')
+
+// Reset a key
+strategy.reset('player-123')
+
+// Cleanup expired records
+strategy.cleanup()
+```
+
+## Rate Limit Context
+
+The `RateLimitContext` class manages rate limiting for a single player:
+
+```typescript
+import { RateLimitContext, TokenBucketStrategy } from '@esengine/server/ratelimit'
+
+const strategy = new TokenBucketStrategy({ rate: 10, capacity: 20 })
+const context = new RateLimitContext('player-123', strategy)
+
+// Check without consuming
+context.check()
+
+// Consume quota
+context.consume()
+
+// Consume with cost
+context.consume(undefined, 5)
+
+// Consume for specific message type
+context.consume('Trade')
+
+// Set per-message strategy
+context.setMessageStrategy('Trade', new TokenBucketStrategy({ rate: 1, capacity: 2 }))
+
+// Reset
+context.reset()
+
+// Get consecutive limit count
+console.log(context.consecutiveLimitCount)
+```
+
+## Room Lifecycle Hook
+
+You can override the `onRateLimited` hook for custom handling:
+
+```typescript
+class GameRoom extends withRateLimit(Room) {
+    onRateLimited(player: Player, messageType: string, result: RateLimitResult) {
+        // Log the event
+        console.log(`Player ${player.id} rate limited on ${messageType}`)
+
+        // Send custom error
+        player.send('SystemMessage', {
+            type: 'warning',
+            message: `Slow down! Try again in ${result.retryAfter}ms`,
+        })
+    }
+}
+```
+
+## Best Practices
+
+1. **Start with token bucket**: It's the most flexible algorithm for games.
+
+2. **Set appropriate limits**: Consider your game's mechanics:
+   - Movement messages: Higher limits (20-60/s)
+   - Chat messages: Lower limits (1-5/s)
+   - Trade/purchase: Very low limits (0.5-1/s)
+
+3. **Use burst capacity**: Allow short bursts for responsive gameplay:
+   ```typescript
+   messagesPerSecond: 10,
+   burstSize: 30, // Allow 3s worth of burst
+   ```
+
+4. **Exempt critical messages**: Don't rate limit heartbeats or system messages:
+   ```typescript
+   @noRateLimit()
+   @onMessage('Heartbeat')
+   handleHeartbeat() { }
+   ```
+
+5. **Combine with auth**: Rate limit by user ID for authenticated users:
+   ```typescript
+   getKey: (player) => player.auth?.userId ?? player.id
+   ```
+
+6. **Monitor and adjust**: Log rate limit events to tune your limits:
+   ```typescript
+   onLimited: (player, type, result) => {
+       metrics.increment('rate_limit', { messageType: type })
+   }
+   ```
+
+7. **Graceful degradation**: Send informative errors instead of just disconnecting:
+   ```typescript
+   onLimited: (player, type, result) => {
+       player.send('Error', {
+           code: 'RATE_LIMITED',
+           message: 'Too many requests',
+           retryAfter: result.retryAfter,
+       })
+   }
+   ```
+
+## Complete Example
+
+```typescript
+import { Room, onMessage, type Player } from '@esengine/server'
+import { withRoomAuth, type AuthPlayer } from '@esengine/server/auth'
+import {
+    withRateLimit,
+    rateLimit,
+    noRateLimit,
+    type RateLimitResult,
+} from '@esengine/server/ratelimit'
+
+interface User {
+    id: string
+    name: string
+    premium: boolean
+}
+
+// Combine auth and rate limit
+class GameRoom extends withRateLimit(
+    withRoomAuth<User>(Room, { requireAuth: true }),
+    {
+        messagesPerSecond: 10,
+        burstSize: 30,
+        strategy: 'token-bucket',
+
+        // Use user ID for rate limiting
+        getKey: (player) => (player as AuthPlayer<User>).user?.id ?? player.id,
+
+        // Handle rate limits
+        onLimited: (player, type, result) => {
+            player.send('Error', {
+                code: 'RATE_LIMITED',
+                messageType: type,
+                retryAfter: result.retryAfter,
+            })
+        },
+
+        // Disconnect after 20 consecutive rate limits
+        maxConsecutiveLimits: 20,
+    }
+) {
+    onCreate() {
+        console.log('Room created with auth + rate limit protection')
+    }
+
+    onJoin(player: AuthPlayer<User>) {
+        this.broadcast('PlayerJoined', { name: player.user?.name })
+    }
+
+    // High-frequency movement (default rate limit)
+    @onMessage('Move')
+    handleMove(data: { x: number; y: number }, player: AuthPlayer<User>) {
+        this.broadcast('PlayerMoved', { id: player.id, ...data })
+    }
+
+    // Low-frequency trading (strict limit)
+    @rateLimit({ messagesPerSecond: 0.5, burstSize: 2 })
+    @onMessage('Trade')
+    handleTrade(data: TradeData, player: AuthPlayer<User>) {
+        // Process trade...
+    }
+
+    // Chat with moderate limit
+    @rateLimit({ messagesPerSecond: 2, burstSize: 5 })
+    @onMessage('Chat')
+    handleChat(data: { text: string }, player: AuthPlayer<User>) {
+        this.broadcast('Chat', {
+            from: player.user?.name,
+            text: data.text,
+        })
+    }
+
+    // System messages - no limit
+    @noRateLimit()
+    @onMessage('Heartbeat')
+    handleHeartbeat(data: any, player: Player) {
+        player.send('Pong', { time: Date.now() })
+    }
+
+    // Custom rate limit handling
+    onRateLimited(player: Player, messageType: string, result: RateLimitResult) {
+        console.warn(`[RateLimit] Player ${player.id} limited on ${messageType}`)
+    }
+}
+```

docs/src/content/docs/en/modules/network/server.md

@@ -311,6 +311,93 @@ client.send('RoomMessage', {
 })
 ```
 
+## ECSRoom
+
+`ECSRoom` is a room base class with ECS World support, suitable for games that need ECS architecture.
+
+### Server Startup
+
+```typescript
+import { Core } from '@esengine/ecs-framework';
+import { createServer } from '@esengine/server';
+import { GameRoom } from './rooms/GameRoom.js';
+
+// Initialize Core
+Core.create();
+
+// Global game loop
+setInterval(() => Core.update(1/60), 16);
+
+// Create server
+const server = await createServer({ port: 3000 });
+server.define('game', GameRoom);
+await server.start();
+```
+
+### Define ECSRoom
+
+```typescript
+import { ECSRoom, Player } from '@esengine/server/ecs';
+import { Component, ECSComponent, sync } from '@esengine/ecs-framework';
+
+// Define sync component
+@ECSComponent('Player')
+class PlayerComponent extends Component {
+    @sync("string") name: string = "";
+    @sync("uint16") score: number = 0;
+    @sync("float32") x: number = 0;
+    @sync("float32") y: number = 0;
+}
+
+// Define room
+class GameRoom extends ECSRoom {
+    onCreate() {
+        this.addSystem(new MovementSystem());
+    }
+
+    onJoin(player: Player) {
+        const entity = this.createPlayerEntity(player.id);
+        const comp = entity.addComponent(new PlayerComponent());
+        comp.name = player.id;
+    }
+}
+```
+
+### ECSRoom API
+
+```typescript
+abstract class ECSRoom<TState, TPlayerData> extends Room<TState, TPlayerData> {
+    protected readonly world: World;     // ECS World
+    protected readonly scene: Scene;     // Main scene
+
+    // Scene management
+    protected addSystem(system: EntitySystem): void;
+    protected createEntity(name?: string): Entity;
+    protected createPlayerEntity(playerId: string, name?: string): Entity;
+    protected getPlayerEntity(playerId: string): Entity | undefined;
+    protected destroyPlayerEntity(playerId: string): void;
+
+    // State sync
+    protected sendFullState(player: Player): void;
+    protected broadcastSpawn(entity: Entity, prefabType?: string): void;
+    protected broadcastDelta(): void;
+}
+```
+
+### @sync Decorator
+
+Mark component fields that need network synchronization:
+
+| Type | Description | Bytes |
+|------|-------------|-------|
+| `"boolean"` | Boolean | 1 |
+| `"int8"` / `"uint8"` | 8-bit integer | 1 |
+| `"int16"` / `"uint16"` | 16-bit integer | 2 |
+| `"int32"` / `"uint32"` | 32-bit integer | 4 |
+| `"float32"` | 32-bit float | 4 |
+| `"float64"` | 64-bit float | 8 |
+| `"string"` | String | Variable |
+
 ## Best Practices
 
 1. **Set Appropriate Tick Rate**

docs/src/content/docs/en/modules/network/sync.md

@@ -1,8 +1,80 @@
 ---
 title: "State Sync"
-description: "Interpolation, prediction and snapshot buffers"
+description: "Component sync, interpolation, prediction and snapshot buffers"
 ---
 
+## Component Sync System
+
+ECS component state synchronization based on `@sync` decorator.
+
+### Define Sync Component
+
+```typescript
+import { Component, ECSComponent, sync } from '@esengine/ecs-framework';
+
+@ECSComponent('Player')
+class PlayerComponent extends Component {
+    @sync("string") name: string = "";
+    @sync("uint16") score: number = 0;
+    @sync("float32") x: number = 0;
+    @sync("float32") y: number = 0;
+
+    // Fields without @sync won't be synced
+    localData: any;
+}
+```
+
+### Server-side Encoding
+
+```typescript
+import { ComponentSyncSystem } from '@esengine/network';
+
+const syncSystem = new ComponentSyncSystem({}, true);
+scene.addSystem(syncSystem);
+
+// Encode all entities (initial connection)
+const fullData = syncSystem.encodeAllEntities(true);
+sendToClient(fullData);
+
+// Encode delta (only send changes)
+const deltaData = syncSystem.encodeDelta();
+if (deltaData) {
+    broadcast(deltaData);
+}
+```
+
+### Client-side Decoding
+
+```typescript
+const syncSystem = new ComponentSyncSystem();
+scene.addSystem(syncSystem);
+
+// Register component types
+syncSystem.registerComponent(PlayerComponent);
+
+// Listen for sync events
+syncSystem.addSyncListener((event) => {
+    if (event.type === 'entitySpawned') {
+        console.log('New entity:', event.entityId);
+    }
+});
+
+// Apply state
+syncSystem.applySnapshot(data);
+```
+
+### Sync Types
+
+| Type | Description | Bytes |
+|------|-------------|-------|
+| `"boolean"` | Boolean | 1 |
+| `"int8"` / `"uint8"` | 8-bit integer | 1 |
+| `"int16"` / `"uint16"` | 16-bit integer | 2 |
+| `"int32"` / `"uint32"` | 32-bit integer | 4 |
+| `"float32"` | 32-bit float | 4 |
+| `"float64"` | 64-bit float | 8 |
+| `"string"` | String | Variable |
+
 ## Snapshot Buffer
 
 Stores server state snapshots for interpolation:

docs/src/content/docs/modules/network/auth.md

@@ -0,0 +1,506 @@
+---
+title: "认证系统"
+description: "使用 JWT 和 Session 提供者为游戏服务器添加认证功能"
+---
+
+`@esengine/server` 包内置了可插拔的认证系统，支持 JWT、会话认证和自定义提供者。
+
+## 安装
+
+认证功能已包含在 server 包中：
+
+```bash
+npm install @esengine/server jsonwebtoken
+```
+
+> 注意：`jsonwebtoken` 是可选的 peer dependency，仅在使用 JWT 认证时需要。
+
+## 快速开始
+
+### JWT 认证
+
+```typescript
+import { createServer } from '@esengine/server'
+import { withAuth, createJwtAuthProvider, withRoomAuth, requireAuth } from '@esengine/server/auth'
+
+// 创建 JWT 提供者
+const jwtProvider = createJwtAuthProvider({
+    secret: process.env.JWT_SECRET!,
+    expiresIn: 3600, // 1 小时
+})
+
+// 用认证包装服务器
+const server = withAuth(await createServer({ port: 3000 }), {
+    provider: jwtProvider,
+    extractCredentials: (req) => {
+        const url = new URL(req.url ?? '', 'http://localhost')
+        return url.searchParams.get('token')
+    },
+})
+
+// 定义需要认证的房间
+class GameRoom extends withRoomAuth(Room, { requireAuth: true }) {
+    onJoin(player) {
+        console.log(`${player.user?.name} 加入了游戏！`)
+    }
+}
+
+server.define('game', GameRoom)
+await server.start()
+```
+
+## 认证提供者
+
+### JWT 提供者
+
+使用 JSON Web Tokens 实现无状态认证：
+
+```typescript
+import { createJwtAuthProvider } from '@esengine/server/auth'
+
+const jwtProvider = createJwtAuthProvider({
+    // 必填：密钥
+    secret: 'your-secret-key',
+
+    // 可选：算法（默认：HS256）
+    algorithm: 'HS256',
+
+    // 可选：过期时间（秒，默认：3600）
+    expiresIn: 3600,
+
+    // 可选：签发者（用于验证）
+    issuer: 'my-game-server',
+
+    // 可选：受众（用于验证）
+    audience: 'my-game-client',
+
+    // 可选：自定义用户提取
+    getUser: async (payload) => {
+        // 从数据库获取用户
+        return await db.users.findById(payload.sub)
+    },
+})
+
+// 签发令牌（用于登录接口）
+const token = jwtProvider.sign({
+    sub: user.id,
+    name: user.name,
+    roles: ['player'],
+})
+
+// 解码但不验证（用于调试）
+const payload = jwtProvider.decode(token)
+```
+
+### Session 提供者
+
+使用服务端会话实现有状态认证：
+
+```typescript
+import { createSessionAuthProvider, type ISessionStorage } from '@esengine/server/auth'
+
+// 自定义存储实现
+const storage: ISessionStorage = {
+    async get<T>(key: string): Promise<T | null> {
+        return await redis.get(key)
+    },
+    async set<T>(key: string, value: T): Promise<void> {
+        await redis.set(key, value)
+    },
+    async delete(key: string): Promise<boolean> {
+        return await redis.del(key) > 0
+    },
+}
+
+const sessionProvider = createSessionAuthProvider({
+    storage,
+    sessionTTL: 86400000, // 24 小时（毫秒）
+
+    // 可选：每次请求时验证用户
+    validateUser: (user) => !user.banned,
+})
+
+// 创建会话（用于登录接口）
+const sessionId = await sessionProvider.createSession(user, {
+    ipAddress: req.ip,
+    userAgent: req.headers['user-agent'],
+})
+
+// 撤销会话（用于登出）
+await sessionProvider.revoke(sessionId)
+```
+
+## 服务器认证 Mixin
+
+`withAuth` 函数用于包装服务器添加认证功能：
+
+```typescript
+import { withAuth } from '@esengine/server/auth'
+
+const server = withAuth(baseServer, {
+    // 必填：认证提供者
+    provider: jwtProvider,
+
+    // 必填：从请求中提取凭证
+    extractCredentials: (req) => {
+        // 从查询字符串获取
+        return new URL(req.url, 'http://localhost').searchParams.get('token')
+
+        // 或从请求头获取
+        // return req.headers['authorization']?.replace('Bearer ', '')
+    },
+
+    // 可选：处理认证失败
+    onAuthFailed: (conn, error) => {
+        console.log(`认证失败: ${error}`)
+    },
+})
+```
+
+### 访问认证上下文
+
+认证后，可以从连接获取认证上下文：
+
+```typescript
+import { getAuthContext } from '@esengine/server/auth'
+
+server.onConnect = (conn) => {
+    const auth = getAuthContext(conn)
+
+    if (auth.isAuthenticated) {
+        console.log(`用户 ${auth.userId} 已连接`)
+        console.log(`角色: ${auth.roles}`)
+    }
+}
+```
+
+## 房间认证 Mixin
+
+`withRoomAuth` 函数为房间添加认证检查：
+
+```typescript
+import { withRoomAuth, type AuthPlayer } from '@esengine/server/auth'
+
+interface User {
+    id: string
+    name: string
+    roles: string[]
+}
+
+class GameRoom extends withRoomAuth<User>(Room, {
+    // 要求认证才能加入
+    requireAuth: true,
+
+    // 可选：要求特定角色
+    allowedRoles: ['player', 'premium'],
+
+    // 可选：角色检查模式（'any' 或 'all'）
+    roleCheckMode: 'any',
+}) {
+    // player 拥有 .auth 和 .user 属性
+    onJoin(player: AuthPlayer<User>) {
+        console.log(`${player.user?.name} 加入了`)
+        console.log(`是否高级会员: ${player.auth.hasRole('premium')}`)
+    }
+
+    // 可选：自定义认证验证
+    async onAuth(player: AuthPlayer<User>): Promise<boolean> {
+        // 额外的验证逻辑
+        if (player.auth.hasRole('banned')) {
+            return false
+        }
+        return true
+    }
+
+    @onMessage('Chat')
+    handleChat(data: { text: string }, player: AuthPlayer<User>) {
+        this.broadcast('Chat', {
+            from: player.user?.name ?? '访客',
+            text: data.text,
+        })
+    }
+}
+```
+
+### AuthPlayer 接口
+
+认证房间中的玩家拥有额外属性：
+
+```typescript
+interface AuthPlayer<TUser> extends Player {
+    // 完整认证上下文
+    readonly auth: IAuthContext<TUser>
+
+    // 用户信息（auth.user 的快捷方式）
+    readonly user: TUser | null
+}
+```
+
+### 房间认证辅助方法
+
+```typescript
+class GameRoom extends withRoomAuth<User>(Room) {
+    someMethod() {
+        // 通过用户 ID 获取玩家
+        const player = this.getPlayerByUserId('user-123')
+
+        // 获取拥有特定角色的所有玩家
+        const admins = this.getPlayersByRole('admin')
+
+        // 获取带认证信息的玩家
+        const authPlayer = this.getAuthPlayer(playerId)
+    }
+}
+```
+
+## 认证装饰器
+
+### @requireAuth
+
+标记消息处理器需要认证：
+
+```typescript
+import { requireAuth, requireRole, onMessage } from '@esengine/server/auth'
+
+class GameRoom extends withRoomAuth(Room) {
+    @requireAuth()
+    @onMessage('Trade')
+    handleTrade(data: TradeData, player: AuthPlayer) {
+        // 只有已认证玩家才能交易
+    }
+
+    @requireAuth({ allowGuest: true })
+    @onMessage('Chat')
+    handleChat(data: ChatData, player: AuthPlayer) {
+        // 访客也可以聊天
+    }
+}
+```
+
+### @requireRole
+
+要求特定角色才能访问消息处理器：
+
+```typescript
+class AdminRoom extends withRoomAuth(Room) {
+    @requireRole('admin')
+    @onMessage('Ban')
+    handleBan(data: BanData, player: AuthPlayer) {
+        // 只有管理员才能封禁
+    }
+
+    @requireRole(['moderator', 'admin'])
+    @onMessage('Mute')
+    handleMute(data: MuteData, player: AuthPlayer) {
+        // 版主或管理员可以禁言
+    }
+
+    @requireRole(['verified', 'premium'], { mode: 'all' })
+    @onMessage('SpecialFeature')
+    handleSpecial(data: any, player: AuthPlayer) {
+        // 需要同时拥有 verified 和 premium 角色
+    }
+}
+```
+
+## 认证上下文 API
+
+认证上下文提供多种检查认证状态的方法：
+
+```typescript
+interface IAuthContext<TUser> {
+    // 认证状态
+    readonly isAuthenticated: boolean
+    readonly user: TUser | null
+    readonly userId: string | null
+    readonly roles: ReadonlyArray<string>
+    readonly authenticatedAt: number | null
+    readonly expiresAt: number | null
+
+    // 角色检查
+    hasRole(role: string): boolean
+    hasAnyRole(roles: string[]): boolean
+    hasAllRoles(roles: string[]): boolean
+}
+```
+
+`AuthContext` 类（实现类）还提供：
+
+```typescript
+class AuthContext<TUser> implements IAuthContext<TUser> {
+    // 从认证结果设置认证状态
+    setAuthenticated(result: AuthResult<TUser>): void
+
+    // 清除认证状态
+    clear(): void
+}
+```
+
+## 测试
+
+使用模拟认证提供者进行单元测试：
+
+```typescript
+import { createMockAuthProvider } from '@esengine/server/auth/testing'
+
+// 创建带预设用户的模拟提供者
+const mockProvider = createMockAuthProvider({
+    users: [
+        { id: '1', name: 'Alice', roles: ['player'] },
+        { id: '2', name: 'Bob', roles: ['admin', 'player'] },
+    ],
+    autoCreate: true, // 为未知令牌创建用户
+})
+
+// 在测试中使用
+const server = withAuth(testServer, {
+    provider: mockProvider,
+    extractCredentials: (req) => req.headers['x-token'],
+})
+
+// 使用用户 ID 作为令牌进行验证
+const result = await mockProvider.verify('1')
+// result.user = { id: '1', name: 'Alice', roles: ['player'] }
+
+// 动态添加/移除用户
+mockProvider.addUser({ id: '3', name: 'Charlie', roles: ['guest'] })
+mockProvider.removeUser('3')
+
+// 撤销令牌
+await mockProvider.revoke('1')
+
+// 重置到初始状态
+mockProvider.clear()
+```
+
+## 错误处理
+
+认证错误包含错误码用于程序化处理：
+
+```typescript
+type AuthErrorCode =
+    | 'INVALID_CREDENTIALS'       // 用户名/密码无效
+    | 'INVALID_TOKEN'             // 令牌格式错误或无效
+    | 'EXPIRED_TOKEN'             // 令牌已过期
+    | 'USER_NOT_FOUND'            // 用户查找失败
+    | 'ACCOUNT_DISABLED'          // 用户账号已禁用
+    | 'RATE_LIMITED'              // 请求过于频繁
+    | 'INSUFFICIENT_PERMISSIONS'  // 权限不足
+
+// 在认证失败处理器中
+const server = withAuth(baseServer, {
+    provider: jwtProvider,
+    extractCredentials,
+    onAuthFailed: (conn, error) => {
+        switch (error.errorCode) {
+            case 'EXPIRED_TOKEN':
+                conn.send('AuthError', { code: 'TOKEN_EXPIRED' })
+                break
+            case 'INVALID_TOKEN':
+                conn.send('AuthError', { code: 'INVALID_TOKEN' })
+                break
+            default:
+                conn.close()
+        }
+    },
+})
+```
+
+## 完整示例
+
+以下是使用 JWT 认证的完整示例：
+
+```typescript
+// server.ts
+import { createServer } from '@esengine/server'
+import {
+    withAuth,
+    withRoomAuth,
+    createJwtAuthProvider,
+    requireAuth,
+    requireRole,
+    type AuthPlayer,
+} from '@esengine/server/auth'
+
+// 类型定义
+interface User {
+    id: string
+    name: string
+    roles: string[]
+}
+
+// JWT 提供者
+const jwtProvider = createJwtAuthProvider<User>({
+    secret: process.env.JWT_SECRET!,
+    expiresIn: 3600,
+    getUser: async (payload) => ({
+        id: payload.sub as string,
+        name: payload.name as string,
+        roles: (payload.roles as string[]) ?? [],
+    }),
+})
+
+// 创建带认证的服务器
+const server = withAuth(
+    await createServer({ port: 3000 }),
+    {
+        provider: jwtProvider,
+        extractCredentials: (req) => {
+            return new URL(req.url ?? '', 'http://localhost')
+                .searchParams.get('token')
+        },
+    }
+)
+
+// 带认证的游戏房间
+class GameRoom extends withRoomAuth<User>(Room, {
+    requireAuth: true,
+    allowedRoles: ['player'],
+}) {
+    onCreate() {
+        console.log('游戏房间已创建')
+    }
+
+    onJoin(player: AuthPlayer<User>) {
+        console.log(`${player.user?.name} 加入了！`)
+        this.broadcast('PlayerJoined', {
+            id: player.id,
+            name: player.user?.name,
+        })
+    }
+
+    @requireAuth()
+    @onMessage('Move')
+    handleMove(data: { x: number; y: number }, player: AuthPlayer<User>) {
+        // 处理移动
+    }
+
+    @requireRole('admin')
+    @onMessage('Kick')
+    handleKick(data: { playerId: string }, player: AuthPlayer<User>) {
+        const target = this.getPlayer(data.playerId)
+        if (target) {
+            this.kick(target, '被管理员踢出')
+        }
+    }
+}
+
+server.define('game', GameRoom)
+await server.start()
+```
+
+## 最佳实践
+
+1. **保护密钥安全**：永远不要硬编码 JWT 密钥，使用环境变量。
+
+2. **设置合理的过期时间**：在安全性和用户体验之间平衡令牌 TTL。
+
+3. **在关键操作上验证**：在敏感消息处理器上使用 `@requireAuth`。
+
+4. **使用基于角色的访问控制**：为管理功能实现适当的角色层级。
+
+5. **处理令牌刷新**：为长会话实现令牌刷新逻辑。
+
+6. **记录认证事件**：跟踪登录尝试和失败以进行安全监控。
+
+7. **测试认证流程**：使用 `MockAuthProvider` 测试认证场景。

docs/src/content/docs/modules/network/rate-limit.md

@@ -0,0 +1,458 @@
+---
+title: "速率限制"
+description: "使用可配置的速率限制保护你的游戏服务器免受滥用"
+---
+
+`@esengine/server` 包含可插拔的速率限制系统，用于防止 DDoS 攻击、消息洪水和其他滥用行为。
+
+## 安装
+
+速率限制包含在 server 包中：
+
+```bash
+npm install @esengine/server
+```
+
+## 快速开始
+
+```typescript
+import { Room, onMessage } from '@esengine/server'
+import { withRateLimit, rateLimit, noRateLimit } from '@esengine/server/ratelimit'
+
+class GameRoom extends withRateLimit(Room, {
+    messagesPerSecond: 10,
+    burstSize: 20,
+    onLimited: (player, type, result) => {
+        player.send('Error', {
+            code: 'RATE_LIMITED',
+            retryAfter: result.retryAfter,
+        })
+    },
+}) {
+    @onMessage('Move')
+    handleMove(data: { x: number; y: number }, player: Player) {
+        // 受速率限制保护（默认 10 msg/s）
+    }
+
+    @rateLimit({ messagesPerSecond: 1 })
+    @onMessage('Trade')
+    handleTrade(data: TradeData, player: Player) {
+        // 交易使用更严格的限制
+    }
+
+    @noRateLimit()
+    @onMessage('Heartbeat')
+    handleHeartbeat(data: any, player: Player) {
+        // 心跳不限制
+    }
+}
+```
+
+## 速率限制策略
+
+### 令牌桶（默认）
+
+令牌桶算法允许突发流量，同时保持长期速率限制。令牌以固定速率添加，每个请求消耗令牌。
+
+```typescript
+import { withRateLimit } from '@esengine/server/ratelimit'
+
+class GameRoom extends withRateLimit(Room, {
+    strategy: 'token-bucket',
+    messagesPerSecond: 10, // 补充速率
+    burstSize: 20,         // 桶容量
+}) { }
+```
+
+**工作原理：**
+```
+配置: rate=10/s, burstSize=20
+
+[0s]   桶满: 20 令牌
+[0s]   收到 15 条消息 → 允许，剩余 5
+[0.5s] 补充 5 令牌 → 10 令牌
+[0.5s] 收到 8 条消息 → 允许，剩余 2
+[0.6s] 补充 1 令牌 → 3 令牌
+[0.6s] 收到 5 条消息 → 允许 3，拒绝 2
+```
+
+**最适合：** 大多数通用场景，平衡突发容忍度与保护。
+
+### 滑动窗口
+
+滑动窗口算法精确跟踪时间窗口内的请求。比固定窗口更准确，但内存使用稍多。
+
+```typescript
+class GameRoom extends withRateLimit(Room, {
+    strategy: 'sliding-window',
+    messagesPerSecond: 10,
+    burstSize: 10,
+}) { }
+```
+
+**最适合：** 需要精确限流且不需要突发容忍的场景。
+
+### 固定窗口
+
+固定窗口算法将时间划分为固定间隔，并计算每个间隔内的请求数。简单且内存高效，但在窗口边界允许 2 倍突发。
+
+```typescript
+class GameRoom extends withRateLimit(Room, {
+    strategy: 'fixed-window',
+    messagesPerSecond: 10,
+    burstSize: 10,
+}) { }
+```
+
+**最适合：** 简单场景，可接受边界突发。
+
+## 配置
+
+### 房间配置
+
+```typescript
+import { withRateLimit } from '@esengine/server/ratelimit'
+
+class GameRoom extends withRateLimit(Room, {
+    // 每秒允许的消息数（默认: 10）
+    messagesPerSecond: 10,
+
+    // 突发容量 / 桶大小（默认: 20）
+    burstSize: 20,
+
+    // 策略: 'token-bucket' | 'sliding-window' | 'fixed-window'
+    strategy: 'token-bucket',
+
+    // 被限流时的回调
+    onLimited: (player, messageType, result) => {
+        player.send('RateLimited', {
+            type: messageType,
+            retryAfter: result.retryAfter,
+        })
+    },
+
+    // 限流时断开连接（默认: false）
+    disconnectOnLimit: false,
+
+    // 连续 N 次限流后断开（0 = 永不）
+    maxConsecutiveLimits: 10,
+
+    // 自定义键函数（默认: player.id）
+    getKey: (player) => player.id,
+
+    // 清理间隔（毫秒，默认: 60000）
+    cleanupInterval: 60000,
+}) { }
+```
+
+### 单消息配置
+
+使用装饰器为特定消息配置速率限制：
+
+```typescript
+import { rateLimit, noRateLimit, rateLimitMessage } from '@esengine/server/ratelimit'
+
+class GameRoom extends withRateLimit(Room) {
+    // 此消息使用自定义速率限制
+    @rateLimit({ messagesPerSecond: 1, burstSize: 2 })
+    @onMessage('Trade')
+    handleTrade(data: TradeData, player: Player) { }
+
+    // 此消息消耗 5 个令牌
+    @rateLimit({ cost: 5 })
+    @onMessage('ExpensiveAction')
+    handleExpensive(data: any, player: Player) { }
+
+    // 豁免速率限制
+    @noRateLimit()
+    @onMessage('Heartbeat')
+    handleHeartbeat(data: any, player: Player) { }
+
+    // 替代方案：显式指定消息类型
+    @rateLimitMessage('SpecialAction', { messagesPerSecond: 2 })
+    @onMessage('SpecialAction')
+    handleSpecial(data: any, player: Player) { }
+}
+```
+
+## 与认证系统组合
+
+速率限制可与认证系统无缝配合：
+
+```typescript
+import { withRoomAuth } from '@esengine/server/auth'
+import { withRateLimit } from '@esengine/server/ratelimit'
+
+// 同时应用两个 mixin
+class GameRoom extends withRateLimit(
+    withRoomAuth(Room, { requireAuth: true }),
+    { messagesPerSecond: 10 }
+) {
+    onJoin(player: AuthPlayer) {
+        console.log(`${player.user?.name} 已加入，受速率限制保护`)
+    }
+}
+```
+
+## 速率限制结果
+
+当消息被限流时，回调会收到结果对象：
+
+```typescript
+interface RateLimitResult {
+    // 是否允许请求
+    allowed: boolean
+
+    // 剩余配额
+    remaining: number
+
+    // 配额重置时间（时间戳）
+    resetAt: number
+
+    // 重试等待时间（毫秒）
+    retryAfter?: number
+}
+```
+
+## 访问速率限制上下文
+
+你可以访问任何玩家的速率限制上下文：
+
+```typescript
+import { getPlayerRateLimitContext } from '@esengine/server/ratelimit'
+
+class GameRoom extends withRateLimit(Room) {
+    someMethod(player: Player) {
+        const context = this.getRateLimitContext(player)
+
+        // 检查但不消费
+        const status = context?.check()
+        console.log(`剩余: ${status?.remaining}`)
+
+        // 获取连续限流次数
+        console.log(`连续限流: ${context?.consecutiveLimitCount}`)
+    }
+}
+
+// 或使用独立函数
+const context = getPlayerRateLimitContext(player)
+```
+
+## 自定义策略
+
+你可以直接使用策略进行自定义实现：
+
+```typescript
+import {
+    TokenBucketStrategy,
+    SlidingWindowStrategy,
+    FixedWindowStrategy,
+    createTokenBucketStrategy,
+} from '@esengine/server/ratelimit'
+
+// 直接创建策略
+const strategy = createTokenBucketStrategy({
+    rate: 10,      // 每秒令牌数
+    capacity: 20,  // 最大令牌数
+})
+
+// 检查并消费
+const result = strategy.consume('player-123')
+if (result.allowed) {
+    // 处理消息
+} else {
+    // 被限流，等待 result.retryAfter 毫秒
+}
+
+// 检查但不消费
+const status = strategy.getStatus('player-123')
+
+// 重置某个键
+strategy.reset('player-123')
+
+// 清理过期记录
+strategy.cleanup()
+```
+
+## 速率限制上下文
+
+`RateLimitContext` 类管理单个玩家的速率限制：
+
+```typescript
+import { RateLimitContext, TokenBucketStrategy } from '@esengine/server/ratelimit'
+
+const strategy = new TokenBucketStrategy({ rate: 10, capacity: 20 })
+const context = new RateLimitContext('player-123', strategy)
+
+// 检查但不消费
+context.check()
+
+// 消费配额
+context.consume()
+
+// 带消耗量消费
+context.consume(undefined, 5)
+
+// 为特定消息类型消费
+context.consume('Trade')
+
+// 设置单消息策略
+context.setMessageStrategy('Trade', new TokenBucketStrategy({ rate: 1, capacity: 2 }))
+
+// 重置
+context.reset()
+
+// 获取连续限流次数
+console.log(context.consecutiveLimitCount)
+```
+
+## 房间生命周期钩子
+
+你可以重写 `onRateLimited` 钩子进行自定义处理：
+
+```typescript
+class GameRoom extends withRateLimit(Room) {
+    onRateLimited(player: Player, messageType: string, result: RateLimitResult) {
+        // 记录事件
+        console.log(`玩家 ${player.id} 在 ${messageType} 上被限流`)
+
+        // 发送自定义错误
+        player.send('SystemMessage', {
+            type: 'warning',
+            message: `请慢一点！${result.retryAfter}ms 后重试`,
+        })
+    }
+}
+```
+
+## 最佳实践
+
+1. **从令牌桶开始**：对于游戏来说是最灵活的算法。
+
+2. **设置合适的限制**：考虑你的游戏机制：
+   - 移动消息：较高限制（20-60/s）
+   - 聊天消息：较低限制（1-5/s）
+   - 交易/购买：非常低的限制（0.5-1/s）
+
+3. **使用突发容量**：允许短暂突发以获得响应式体验：
+   ```typescript
+   messagesPerSecond: 10,
+   burstSize: 30, // 允许 3 秒的突发
+   ```
+
+4. **豁免关键消息**：不要限制心跳或系统消息：
+   ```typescript
+   @noRateLimit()
+   @onMessage('Heartbeat')
+   handleHeartbeat() { }
+   ```
+
+5. **与认证结合**：对已认证用户按用户 ID 限流：
+   ```typescript
+   getKey: (player) => player.auth?.userId ?? player.id
+   ```
+
+6. **监控和调整**：记录限流事件以调整限制：
+   ```typescript
+   onLimited: (player, type, result) => {
+       metrics.increment('rate_limit', { messageType: type })
+   }
+   ```
+
+7. **优雅降级**：发送信息性错误而不是直接断开：
+   ```typescript
+   onLimited: (player, type, result) => {
+       player.send('Error', {
+           code: 'RATE_LIMITED',
+           message: '请求过于频繁',
+           retryAfter: result.retryAfter,
+       })
+   }
+   ```
+
+## 完整示例
+
+```typescript
+import { Room, onMessage, type Player } from '@esengine/server'
+import { withRoomAuth, type AuthPlayer } from '@esengine/server/auth'
+import {
+    withRateLimit,
+    rateLimit,
+    noRateLimit,
+    type RateLimitResult,
+} from '@esengine/server/ratelimit'
+
+interface User {
+    id: string
+    name: string
+    premium: boolean
+}
+
+// 组合认证和速率限制
+class GameRoom extends withRateLimit(
+    withRoomAuth<User>(Room, { requireAuth: true }),
+    {
+        messagesPerSecond: 10,
+        burstSize: 30,
+        strategy: 'token-bucket',
+
+        // 使用用户 ID 进行限流
+        getKey: (player) => (player as AuthPlayer<User>).user?.id ?? player.id,
+
+        // 处理限流
+        onLimited: (player, type, result) => {
+            player.send('Error', {
+                code: 'RATE_LIMITED',
+                messageType: type,
+                retryAfter: result.retryAfter,
+            })
+        },
+
+        // 连续 20 次限流后断开
+        maxConsecutiveLimits: 20,
+    }
+) {
+    onCreate() {
+        console.log('房间已创建，具有认证 + 速率限制保护')
+    }
+
+    onJoin(player: AuthPlayer<User>) {
+        this.broadcast('PlayerJoined', { name: player.user?.name })
+    }
+
+    // 高频移动（默认速率限制）
+    @onMessage('Move')
+    handleMove(data: { x: number; y: number }, player: AuthPlayer<User>) {
+        this.broadcast('PlayerMoved', { id: player.id, ...data })
+    }
+
+    // 低频交易（严格限制）
+    @rateLimit({ messagesPerSecond: 0.5, burstSize: 2 })
+    @onMessage('Trade')
+    handleTrade(data: TradeData, player: AuthPlayer<User>) {
+        // 处理交易...
+    }
+
+    // 聊天使用中等限制
+    @rateLimit({ messagesPerSecond: 2, burstSize: 5 })
+    @onMessage('Chat')
+    handleChat(data: { text: string }, player: AuthPlayer<User>) {
+        this.broadcast('Chat', {
+            from: player.user?.name,
+            text: data.text,
+        })
+    }
+
+    // 系统消息 - 不限制
+    @noRateLimit()
+    @onMessage('Heartbeat')
+    handleHeartbeat(data: any, player: Player) {
+        player.send('Pong', { time: Date.now() })
+    }
+
+    // 自定义限流处理
+    onRateLimited(player: Player, messageType: string, result: RateLimitResult) {
+        console.warn(`[限流] 玩家 ${player.id} 在 ${messageType} 上被限流`)
+    }
+}
+```

docs/src/content/docs/modules/network/server.md

@@ -311,6 +311,93 @@ client.send('RoomMessage', {
 })
 ```
 
+## ECSRoom
+
+`ECSRoom` 是带有 ECS World 支持的房间基类，适用于需要 ECS 架构的游戏。
+
+### 服务端启动
+
+```typescript
+import { Core } from '@esengine/ecs-framework';
+import { createServer } from '@esengine/server';
+import { GameRoom } from './rooms/GameRoom.js';
+
+// 初始化 Core
+Core.create();
+
+// 全局游戏循环
+setInterval(() => Core.update(1/60), 16);
+
+// 创建服务器
+const server = await createServer({ port: 3000 });
+server.define('game', GameRoom);
+await server.start();
+```
+
+### 定义 ECSRoom
+
+```typescript
+import { ECSRoom, Player } from '@esengine/server/ecs';
+import { Component, ECSComponent, sync } from '@esengine/ecs-framework';
+
+// 定义同步组件
+@ECSComponent('Player')
+class PlayerComponent extends Component {
+    @sync("string") name: string = "";
+    @sync("uint16") score: number = 0;
+    @sync("float32") x: number = 0;
+    @sync("float32") y: number = 0;
+}
+
+// 定义房间
+class GameRoom extends ECSRoom {
+    onCreate() {
+        this.addSystem(new MovementSystem());
+    }
+
+    onJoin(player: Player) {
+        const entity = this.createPlayerEntity(player.id);
+        const comp = entity.addComponent(new PlayerComponent());
+        comp.name = player.id;
+    }
+}
+```
+
+### ECSRoom API
+
+```typescript
+abstract class ECSRoom<TState, TPlayerData> extends Room<TState, TPlayerData> {
+    protected readonly world: World;     // ECS World
+    protected readonly scene: Scene;     // 主场景
+
+    // 场景管理
+    protected addSystem(system: EntitySystem): void;
+    protected createEntity(name?: string): Entity;
+    protected createPlayerEntity(playerId: string, name?: string): Entity;
+    protected getPlayerEntity(playerId: string): Entity | undefined;
+    protected destroyPlayerEntity(playerId: string): void;
+
+    // 状态同步
+    protected sendFullState(player: Player): void;
+    protected broadcastSpawn(entity: Entity, prefabType?: string): void;
+    protected broadcastDelta(): void;
+}
+```
+
+### @sync 装饰器
+
+标记需要网络同步的组件字段：
+
+| 类型 | 描述 | 字节数 |
+|------|------|--------|
+| `"boolean"` | 布尔值 | 1 |
+| `"int8"` / `"uint8"` | 8位整数 | 1 |
+| `"int16"` / `"uint16"` | 16位整数 | 2 |
+| `"int32"` / `"uint32"` | 32位整数 | 4 |
+| `"float32"` | 32位浮点 | 4 |
+| `"float64"` | 64位浮点 | 8 |
+| `"string"` | 字符串 | 变长 |
+
 ## 最佳实践
 
 1. **合理设置 Tick 频率**

docs/src/content/docs/modules/network/sync.md

@@ -1,8 +1,80 @@
 ---
 title: "状态同步"
-description: "插值、预测和快照缓冲区"
+description: "组件同步、插值、预测和快照缓冲区"
 ---
 
+## 组件同步系统
+
+基于 `@sync` 装饰器的 ECS 组件状态同步。
+
+### 定义同步组件
+
+```typescript
+import { Component, ECSComponent, sync } from '@esengine/ecs-framework';
+
+@ECSComponent('Player')
+class PlayerComponent extends Component {
+    @sync("string") name: string = "";
+    @sync("uint16") score: number = 0;
+    @sync("float32") x: number = 0;
+    @sync("float32") y: number = 0;
+
+    // 不带 @sync 的字段不会同步
+    localData: any;
+}
+```
+
+### 服务端编码
+
+```typescript
+import { ComponentSyncSystem } from '@esengine/network';
+
+const syncSystem = new ComponentSyncSystem({}, true);
+scene.addSystem(syncSystem);
+
+// 编码所有实体（首次连接）
+const fullData = syncSystem.encodeAllEntities(true);
+sendToClient(fullData);
+
+// 编码增量（只发送变更）
+const deltaData = syncSystem.encodeDelta();
+if (deltaData) {
+    broadcast(deltaData);
+}
+```
+
+### 客户端解码
+
+```typescript
+const syncSystem = new ComponentSyncSystem();
+scene.addSystem(syncSystem);
+
+// 注册组件类型
+syncSystem.registerComponent(PlayerComponent);
+
+// 监听同步事件
+syncSystem.addSyncListener((event) => {
+    if (event.type === 'entitySpawned') {
+        console.log('New entity:', event.entityId);
+    }
+});
+
+// 应用状态
+syncSystem.applySnapshot(data);
+```
+
+### 同步类型
+
+| 类型 | 描述 | 字节数 |
+|------|------|--------|
+| `"boolean"` | 布尔值 | 1 |
+| `"int8"` / `"uint8"` | 8位整数 | 1 |
+| `"int16"` / `"uint16"` | 16位整数 | 2 |
+| `"int32"` / `"uint32"` | 32位整数 | 4 |
+| `"float32"` | 32位浮点 | 4 |
+| `"float64"` | 64位浮点 | 8 |
+| `"string"` | 字符串 | 变长 |
+
 ## 快照缓冲区
 
 用于存储服务器状态快照并进行插值：

packages/framework/behavior-tree/CHANGELOG.md

@@ -1,5 +1,19 @@
 # @esengine/behavior-tree
 
+## 2.0.1
+
+### Patch Changes
+
+- Updated dependencies [[`a08a84b`](https://github.com/esengine/esengine/commit/a08a84b7db28e1140cbc637d442552747ad81c76)]:
+    - @esengine/ecs-framework@2.5.1
+
+## 2.0.0
+
+### Patch Changes
+
+- Updated dependencies [[`1f297ac`](https://github.com/esengine/esengine/commit/1f297ac769e37700f72fb4425639af7090898256)]:
+    - @esengine/ecs-framework@2.5.0
+
 ## 1.0.3
 
 ### Patch Changes

packages/framework/behavior-tree/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@esengine/behavior-tree",
-    "version": "1.0.3",
+    "version": "2.0.1",
     "description": "ECS-based AI behavior tree system - works with any ECS framework (ESEngine, Cocos, Laya, etc.)",
     "main": "dist/index.js",
     "module": "dist/index.js",

packages/framework/blueprint/CHANGELOG.md

@@ -1,5 +1,19 @@
 # @esengine/blueprint
 
+## 2.0.1
+
+### Patch Changes
+
+- Updated dependencies [[`a08a84b`](https://github.com/esengine/esengine/commit/a08a84b7db28e1140cbc637d442552747ad81c76)]:
+    - @esengine/ecs-framework@2.5.1
+
+## 2.0.0
+
+### Patch Changes
+
+- Updated dependencies [[`1f297ac`](https://github.com/esengine/esengine/commit/1f297ac769e37700f72fb4425639af7090898256)]:
+    - @esengine/ecs-framework@2.5.0
+
 ## 1.0.2
 
 ### Patch Changes

packages/framework/blueprint/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@esengine/blueprint",
-    "version": "1.0.2",
+    "version": "2.0.1",
     "description": "Visual scripting system - works with any ECS framework (ESEngine, Cocos, Laya, etc.)",
     "main": "dist/index.js",
     "module": "dist/index.js",

packages/framework/core/CHANGELOG.md

@@ -1,5 +1,118 @@
 # @esengine/ecs-framework
 
+## 2.5.1
+
+### Patch Changes
+
+- [#392](https://github.com/esengine/esengine/pull/392) [`a08a84b`](https://github.com/esengine/esengine/commit/a08a84b7db28e1140cbc637d442552747ad81c76) Thanks [@esengine](https://github.com/esengine)! - fix(sync): Decoder 现在使用 GlobalComponentRegistry 查找组件 | Decoder now uses GlobalComponentRegistry for component lookup
+
+    **问题 | Problem:**
+    1. `Decoder.ts` 有自己独立的 `componentRegistry` Map，与 `GlobalComponentRegistry` 完全分离。这导致通过 `@ECSComponent` 装饰器注册的组件在网络反序列化时找不到，产生 "Unknown component type" 错误。
+    2. `@sync` 装饰器使用 `constructor.name` 作为 `typeId`，而不是 `@ECSComponent` 装饰器指定的名称，导致编码和解码使用不同的类型 ID。
+    3. `Decoder.ts` had its own local `componentRegistry` Map that was completely separate from `GlobalComponentRegistry`. This caused components registered via `@ECSComponent` decorator to not be found during network deserialization, resulting in "Unknown component type" errors.
+    4. `@sync` decorator used `constructor.name` as `typeId` instead of the name specified by `@ECSComponent` decorator, causing encoding and decoding to use different type IDs.
+
+    **修改 | Changes:**
+    - 从 Decoder.ts 中移除本地 `componentRegistry`
+    - 更新 `decodeEntity` 和 `decodeSpawn` 使用 `GlobalComponentRegistry.getComponentType()`
+    - 移除已废弃的 `registerSyncComponent` 和 `autoRegisterSyncComponent` 函数
+    - 更新 `@sync` 装饰器使用 `getComponentTypeName()` 获取组件类型名称
+    - 更新 `@ECSComponent` 装饰器同步更新 `SYNC_METADATA.typeId`
+    - Removed local `componentRegistry` from Decoder.ts
+    - Updated `decodeEntity` and `decodeSpawn` to use `GlobalComponentRegistry.getComponentType()`
+    - Removed deprecated `registerSyncComponent` and `autoRegisterSyncComponent` functions
+    - Updated `@sync` decorator to use `getComponentTypeName()` for component type name
+    - Updated `@ECSComponent` decorator to sync update `SYNC_METADATA.typeId`
+
+    现在使用 `@ECSComponent` 装饰器的组件会自动可用于网络同步解码，无需手动注册。
+
+    Now `@ECSComponent` decorated components are automatically available for network sync decoding without any manual registration.
+
+## 2.5.0
+
+### Minor Changes
+
+- [#390](https://github.com/esengine/esengine/pull/390) [`1f297ac`](https://github.com/esengine/esengine/commit/1f297ac769e37700f72fb4425639af7090898256) Thanks [@esengine](https://github.com/esengine)! - feat: ECS 网络状态同步系统
+
+    ## @esengine/ecs-framework
+
+    新增 `@sync` 装饰器和二进制编解码器，支持基于 Component 的网络状态同步：
+
+    ```typescript
+    import { Component, ECSComponent, sync } from '@esengine/ecs-framework';
+
+    @ECSComponent('Player')
+    class PlayerComponent extends Component {
+        @sync('string') name: string = '';
+        @sync('uint16') score: number = 0;
+        @sync('float32') x: number = 0;
+        @sync('float32') y: number = 0;
+    }
+    ```
+
+    ### 新增导出
+    - `sync` - 标记需要同步的字段装饰器
+    - `SyncType` - 支持的同步类型
+    - `SyncOperation` - 同步操作类型（FULL/DELTA/SPAWN/DESPAWN）
+    - `encodeSnapshot` / `decodeSnapshot` - 批量编解码
+    - `encodeSpawn` / `decodeSpawn` - 实体生成编解码
+    - `encodeDespawn` / `processDespawn` - 实体销毁编解码
+    - `ChangeTracker` - 字段级变更追踪
+    - `initChangeTracker` / `clearChanges` / `hasChanges` - 变更追踪工具函数
+
+    ### 内部方法标记
+
+    将以下方法标记为 `@internal`，用户应通过 `Core.update()` 驱动更新：
+    - `Scene.update()`
+    - `SceneManager.update()`
+    - `WorldManager.updateAll()`
+
+    ## @esengine/network
+
+    新增 `ComponentSyncSystem`，基于 `@sync` 装饰器自动同步组件状态：
+
+    ```typescript
+    import { ComponentSyncSystem } from '@esengine/network';
+
+    // 服务端：编码状态
+    const data = syncSystem.encodeAllEntities(false);
+
+    // 客户端：解码状态
+    syncSystem.applySnapshot(data);
+    ```
+
+    ### 修复
+    - 将 `@esengine/ecs-framework` 从 devDependencies 移到 peerDependencies
+
+    ## @esengine/server
+
+    新增 `ECSRoom`，带有 ECS World 支持的房间基类：
+
+    ```typescript
+    import { ECSRoom } from '@esengine/server/ecs';
+
+    // 服务端启动
+    Core.create();
+    setInterval(() => Core.update(1 / 60), 16);
+
+    // 定义房间
+    class GameRoom extends ECSRoom {
+        onCreate() {
+            this.addSystem(new PhysicsSystem());
+        }
+
+        onJoin(player: Player) {
+            const entity = this.createPlayerEntity(player.id);
+            entity.addComponent(new PlayerComponent());
+        }
+    }
+    ```
+
+    ### 设计
+    - 每个 `ECSRoom` 在 `Core.worldManager` 中创建独立的 World
+    - `Core.update()` 统一更新 Time 和所有 World
+    - `onTick()` 只处理状态同步逻辑
+
 ## 2.4.4
 
 ### Patch Changes

packages/framework/core/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@esengine/ecs-framework",
-  "version": "2.4.4",
+  "version": "2.5.1",
   "description": "用于Laya、Cocos Creator等JavaScript游戏引擎的高性能ECS框架",
   "main": "dist/index.cjs",
   "module": "dist/index.mjs",

packages/framework/core/src/ECS/Component.ts

@@ -10,10 +10,16 @@ import { Int32 } from './Core/SoAStorage';
  * @en Components in ECS architecture should be pure data containers.
  * All game logic should be implemented in EntitySystem, not inside components.
  *
+ * @zh **重要：所有 Component 子类都必须使用 @ECSComponent 装饰器！**
+ * @zh 该装饰器用于注册组件类型名称，是序列化、网络同步等功能正常工作的前提。
+ * @en **IMPORTANT: All Component subclasses MUST use the @ECSComponent decorator!**
+ * @en This decorator registers the component type name, which is required for serialization, network sync, etc.
+ *
  * @example
- * @zh 推荐做法：纯数据组件
- * @en Recommended: Pure data component
+ * @zh 正确做法：使用 @ECSComponent 装饰器
+ * @en Correct: Use @ECSComponent decorator
  * ```typescript
+ * @ECSComponent('HealthComponent')
  * class HealthComponent extends Component {
  *     public health: number = 100;
  *     public maxHealth: number = 100;

packages/framework/core/src/ECS/Decorators/TypeDecorators.ts

@@ -19,6 +19,7 @@ import {
     type ComponentEditorOptions,
     type ComponentType
 } from '../Core/ComponentStorage/ComponentTypeUtils';
+import { SYNC_METADATA, type SyncMetadata } from '../Sync/types';
 
 /**
  * 存储系统类型名称的Symbol键
@@ -138,6 +139,14 @@ export function ECSComponent(typeName: string, options?: ComponentOptions) {
             metadata[COMPONENT_EDITOR_OPTIONS] = options.editor;
         }
 
+        // 更新 @sync 装饰器创建的 SYNC_METADATA.typeId（如果存在）
+        // Update SYNC_METADATA.typeId created by @sync decorator (if exists)
+        // Property decorators execute before class decorators, so @sync may have used constructor.name
+        const syncMeta = (target as any)[SYNC_METADATA] as SyncMetadata | undefined;
+        if (syncMeta) {
+            syncMeta.typeId = typeName;
+        }
+
         // 自动注册到全局 ComponentRegistry，使组件可以通过名称查找
         // Auto-register to GlobalComponentRegistry, enabling lookup by name
         GlobalComponentRegistry.register(target);

packages/framework/core/src/ECS/Scene.ts

@@ -508,7 +508,9 @@ export class Scene implements IScene {
     }
 
     /**
-     * 更新场景
+     * @zh 更新场景
+     * @en Update scene
+     * @internal 由 SceneManager 或 World 调用，用户不应直接调用
      */
     public update() {
         this.epochManager.increment();

packages/framework/core/src/ECS/SceneManager.ts

@@ -240,18 +240,9 @@ export class SceneManager implements IService {
     }
 
     /**
-     * 更新场景
-     *
-     * 应该在每帧的游戏循环中调用。
-     * 会自动处理延迟场景切换。
-     *
-     * @example
-     * ```typescript
-     * function gameLoop(deltaTime: number) {
-     *     Core.update(deltaTime);
-     *     sceneManager.update();  // 每帧调用
-     * }
-     * ```
+     * @zh 更新场景
+     * @en Update scene
+     * @internal 由 Core.update() 调用，用户不应直接调用
      */
     public update(): void {
         // 处理延迟场景切换

packages/framework/core/src/ECS/Sync/ChangeTracker.ts

@@ -0,0 +1,125 @@
+/**
+ * @zh 组件变更追踪器
+ * @en Component change tracker
+ *
+ * @zh 用于追踪 @sync 标记字段的变更，支持增量同步
+ * @en Tracks changes to @sync marked fields for delta synchronization
+ */
+export class ChangeTracker {
+    /**
+     * @zh 脏字段索引集合
+     * @en Set of dirty field indices
+     */
+    private _dirtyFields: Set<number> = new Set();
+
+    /**
+     * @zh 是否有任何变更
+     * @en Whether there are any changes
+     */
+    private _hasChanges: boolean = false;
+
+    /**
+     * @zh 上次同步的时间戳
+     * @en Last sync timestamp
+     */
+    private _lastSyncTime: number = 0;
+
+    /**
+     * @zh 标记字段为脏
+     * @en Mark field as dirty
+     *
+     * @param fieldIndex - @zh 字段索引 @en Field index
+     */
+    public setDirty(fieldIndex: number): void {
+        this._dirtyFields.add(fieldIndex);
+        this._hasChanges = true;
+    }
+
+    /**
+     * @zh 检查是否有变更
+     * @en Check if there are any changes
+     */
+    public hasChanges(): boolean {
+        return this._hasChanges;
+    }
+
+    /**
+     * @zh 检查特定字段是否脏
+     * @en Check if a specific field is dirty
+     *
+     * @param fieldIndex - @zh 字段索引 @en Field index
+     */
+    public isDirty(fieldIndex: number): boolean {
+        return this._dirtyFields.has(fieldIndex);
+    }
+
+    /**
+     * @zh 获取所有脏字段索引
+     * @en Get all dirty field indices
+     */
+    public getDirtyFields(): number[] {
+        return Array.from(this._dirtyFields);
+    }
+
+    /**
+     * @zh 获取脏字段数量
+     * @en Get number of dirty fields
+     */
+    public getDirtyCount(): number {
+        return this._dirtyFields.size;
+    }
+
+    /**
+     * @zh 清除所有变更标记
+     * @en Clear all change marks
+     */
+    public clear(): void {
+        this._dirtyFields.clear();
+        this._hasChanges = false;
+        this._lastSyncTime = Date.now();
+    }
+
+    /**
+     * @zh 清除特定字段的变更标记
+     * @en Clear change mark for a specific field
+     *
+     * @param fieldIndex - @zh 字段索引 @en Field index
+     */
+    public clearField(fieldIndex: number): void {
+        this._dirtyFields.delete(fieldIndex);
+        if (this._dirtyFields.size === 0) {
+            this._hasChanges = false;
+        }
+    }
+
+    /**
+     * @zh 获取上次同步时间
+     * @en Get last sync time
+     */
+    public get lastSyncTime(): number {
+        return this._lastSyncTime;
+    }
+
+    /**
+     * @zh 标记所有字段为脏（用于首次同步）
+     * @en Mark all fields as dirty (for initial sync)
+     *
+     * @param fieldCount - @zh 字段数量 @en Field count
+     */
+    public markAllDirty(fieldCount: number): void {
+        for (let i = 0; i < fieldCount; i++) {
+            this._dirtyFields.add(i);
+        }
+        this._hasChanges = fieldCount > 0;
+    }
+
+    /**
+     * @zh 重置追踪器
+     * @en Reset tracker
+     */
+    public reset(): void {
+        this._dirtyFields.clear();
+        this._hasChanges = false;
+        this._lastSyncTime = 0;
+    }
+}

packages/framework/core/src/ECS/Sync/decorators.ts

@@ -0,0 +1,219 @@
+/**
+ * @zh 网络同步装饰器
+ * @en Network synchronization decorators
+ *
+ * @zh 提供 @sync 装饰器，用于标记需要网络同步的 Component 字段
+ * @en Provides @sync decorator to mark Component fields for network synchronization
+ */
+
+import type { SyncType, SyncFieldMetadata, SyncMetadata } from './types';
+import { SYNC_METADATA, CHANGE_TRACKER } from './types';
+import { ChangeTracker } from './ChangeTracker';
+import { getComponentTypeName } from '../Core/ComponentStorage/ComponentTypeUtils';
+
+/**
+ * @zh 获取或创建组件的同步元数据
+ * @en Get or create sync metadata for a component class
+ *
+ * @param target - @zh 组件类的原型 @en Component class prototype
+ * @returns @zh 同步元数据 @en Sync metadata
+ */
+function getOrCreateSyncMetadata(target: any): SyncMetadata {
+    const constructor = target.constructor;
+
+    // Check if has own metadata (not inherited)
+    const hasOwnMetadata = Object.prototype.hasOwnProperty.call(constructor, SYNC_METADATA);
+
+    if (hasOwnMetadata) {
+        return constructor[SYNC_METADATA];
+    }
+
+    // Check for inherited metadata
+    const inheritedMetadata: SyncMetadata | undefined = constructor[SYNC_METADATA];
+
+    // Create new metadata (copy from inherited if exists)
+    // Use getComponentTypeName to get @ECSComponent decorator name, or fall back to constructor.name
+    const metadata: SyncMetadata = {
+        typeId: getComponentTypeName(constructor),
+        fields: inheritedMetadata ? [...inheritedMetadata.fields] : [],
+        fieldIndexMap: inheritedMetadata ? new Map(inheritedMetadata.fieldIndexMap) : new Map()
+    };
+
+    constructor[SYNC_METADATA] = metadata;
+    return metadata;
+}
+
+/**
+ * @zh 同步字段装饰器
+ * @en Sync field decorator
+ *
+ * @zh 标记 Component 字段为可网络同步。被标记的字段会自动追踪变更，
+ * 并在值修改时触发变更追踪器。
+ * @en Marks a Component field for network synchronization. Marked fields
+ * automatically track changes and trigger the change tracker on modification.
+ *
+ * @param type - @zh 字段的同步类型 @en Sync type of the field
+ *
+ * @example
+ * ```typescript
+ * import { Component, ECSComponent } from '@esengine/ecs-framework';
+ * import { sync } from '@esengine/ecs-framework';
+ *
+ * @ECSComponent('Player')
+ * class PlayerComponent extends Component {
+ *     @sync("string") name: string = "";
+ *     @sync("uint16") score: number = 0;
+ *     @sync("float32") x: number = 0;
+ *     @sync("float32") y: number = 0;
+ *
+ *     // 不带 @sync 的字段不会同步
+ *     // Fields without @sync will not be synchronized
+ *     localData: any;
+ * }
+ * ```
+ */
+export function sync(type: SyncType) {
+    return function (target: any, propertyKey: string) {
+        const metadata = getOrCreateSyncMetadata(target);
+
+        // Assign field index (auto-increment based on field count)
+        const fieldIndex = metadata.fields.length;
+
+        // Create field metadata
+        const fieldMeta: SyncFieldMetadata = {
+            index: fieldIndex,
+            name: propertyKey,
+            type: type
+        };
+
+        // Register field
+        metadata.fields.push(fieldMeta);
+        metadata.fieldIndexMap.set(propertyKey, fieldIndex);
+
+        // Store original property key for getter/setter
+        const privateKey = `_sync_${propertyKey}`;
+
+        // Define getter/setter to intercept value changes
+        Object.defineProperty(target, propertyKey, {
+            get() {
+                return this[privateKey];
+            },
+            set(value: any) {
+                const oldValue = this[privateKey];
+                if (oldValue !== value) {
+                    this[privateKey] = value;
+                    // Trigger change tracker if exists
+                    const tracker = this[CHANGE_TRACKER] as ChangeTracker | undefined;
+                    if (tracker) {
+                        tracker.setDirty(fieldIndex);
+                    }
+                }
+            },
+            enumerable: true,
+            configurable: true
+        });
+    };
+}
+
+/**
+ * @zh 获取组件类的同步元数据
+ * @en Get sync metadata for a component class
+ *
+ * @param componentClass - @zh 组件类或组件实例 @en Component class or instance
+ * @returns @zh 同步元数据，如果不存在则返回 null @en Sync metadata, or null if not exists
+ */
+export function getSyncMetadata(componentClass: any): SyncMetadata | null {
+    if (!componentClass) {
+        return null;
+    }
+
+    const constructor = typeof componentClass === 'function'
+        ? componentClass
+        : componentClass.constructor;
+
+    return constructor[SYNC_METADATA] || null;
+}
+
+/**
+ * @zh 检查组件是否有同步字段
+ * @en Check if a component has sync fields
+ *
+ * @param component - @zh 组件类或组件实例 @en Component class or instance
+ * @returns @zh 如果有同步字段返回 true @en Returns true if has sync fields
+ */
+export function hasSyncFields(component: any): boolean {
+    const metadata = getSyncMetadata(component);
+    return metadata !== null && metadata.fields.length > 0;
+}
+
+/**
+ * @zh 获取组件实例的变更追踪器
+ * @en Get change tracker of a component instance
+ *
+ * @param component - @zh 组件实例 @en Component instance
+ * @returns @zh 变更追踪器，如果不存在则返回 null @en Change tracker, or null if not exists
+ */
+export function getChangeTracker(component: any): ChangeTracker | null {
+    if (!component) {
+        return null;
+    }
+    return component[CHANGE_TRACKER] || null;
+}
+
+/**
+ * @zh 为组件实例初始化变更追踪器
+ * @en Initialize change tracker for a component instance
+ *
+ * @zh 这个函数应该在组件首次添加到实体时调用。
+ * 它会创建变更追踪器并标记所有字段为脏（用于首次同步）。
+ * @en This function should be called when a component is first added to an entity.
+ * It creates the change tracker and marks all fields as dirty (for initial sync).
+ *
+ * @param component - @zh 组件实例 @en Component instance
+ * @returns @zh 变更追踪器 @en Change tracker
+ */
+export function initChangeTracker(component: any): ChangeTracker {
+    const metadata = getSyncMetadata(component);
+    if (!metadata) {
+        throw new Error('Component does not have sync metadata. Use @sync decorator on fields.');
+    }
+
+    let tracker = component[CHANGE_TRACKER] as ChangeTracker | undefined;
+    if (!tracker) {
+        tracker = new ChangeTracker();
+        component[CHANGE_TRACKER] = tracker;
+    }
+
+    // Mark all fields as dirty for initial sync
+    tracker.markAllDirty(metadata.fields.length);
+
+    return tracker;
+}
+
+/**
+ * @zh 清除组件实例的变更标记
+ * @en Clear change marks for a component instance
+ *
+ * @zh 通常在同步完成后调用，清除所有脏标记
+ * @en Usually called after sync is complete, clears all dirty marks
+ *
+ * @param component - @zh 组件实例 @en Component instance
+ */
+export function clearChanges(component: any): void {
+    const tracker = getChangeTracker(component);
+    if (tracker) {
+        tracker.clear();
+    }
+}
+
+/**
+ * @zh 检查组件是否有变更
+ * @en Check if a component has changes
+ *
+ * @param component - @zh 组件实例 @en Component instance
+ * @returns @zh 如果有变更返回 true @en Returns true if has changes
+ */
+export function hasChanges(component: any): boolean {
+    const tracker = getChangeTracker(component);
+    return tracker ? tracker.hasChanges() : false;
+}

packages/framework/core/src/ECS/Sync/encoding/BinaryReader.ts

@@ -0,0 +1,285 @@
+/**
+ * @zh 二进制读取器
+ * @en Binary Reader
+ *
+ * @zh 提供高效的二进制数据读取功能
+ * @en Provides efficient binary data reading
+ */
+
+import { decodeVarint } from './varint';
+
+/**
+ * @zh 文本解码器（使用浏览器原生 API）
+ * @en Text decoder (using browser native API)
+ */
+const textDecoder = typeof TextDecoder !== 'undefined' ? new TextDecoder() : null;
+
+/**
+ * @zh 二进制读取器
+ * @en Binary reader for decoding data
+ */
+export class BinaryReader {
+    /**
+     * @zh 数据缓冲区
+     * @en Data buffer
+     */
+    private _buffer: Uint8Array;
+
+    /**
+     * @zh DataView 用于读取数值
+     * @en DataView for reading numbers
+     */
+    private _view: DataView;
+
+    /**
+     * @zh 当前读取位置
+     * @en Current read position
+     */
+    private _offset: number = 0;
+
+    /**
+     * @zh 创建二进制读取器
+     * @en Create binary reader
+     *
+     * @param buffer - @zh 要读取的数据 @en Data to read
+     */
+    constructor(buffer: Uint8Array) {
+        this._buffer = buffer;
+        this._view = new DataView(buffer.buffer, buffer.byteOffset, buffer.byteLength);
+    }
+
+    /**
+     * @zh 获取当前读取位置
+     * @en Get current read position
+     */
+    public get offset(): number {
+        return this._offset;
+    }
+
+    /**
+     * @zh 设置读取位置
+     * @en Set read position
+     */
+    public set offset(value: number) {
+        this._offset = value;
+    }
+
+    /**
+     * @zh 获取剩余可读字节数
+     * @en Get remaining readable bytes
+     */
+    public get remaining(): number {
+        return this._buffer.length - this._offset;
+    }
+
+    /**
+     * @zh 检查是否有更多数据可读
+     * @en Check if there's more data to read
+     */
+    public hasMore(): boolean {
+        return this._offset < this._buffer.length;
+    }
+
+    /**
+     * @zh 读取单个字节
+     * @en Read single byte
+     */
+    public readUint8(): number {
+        this.checkBounds(1);
+        return this._buffer[this._offset++]!;
+    }
+
+    /**
+     * @zh 读取有符号字节
+     * @en Read signed byte
+     */
+    public readInt8(): number {
+        this.checkBounds(1);
+        return this._view.getInt8(this._offset++);
+    }
+
+    /**
+     * @zh 读取布尔值
+     * @en Read boolean
+     */
+    public readBoolean(): boolean {
+        return this.readUint8() !== 0;
+    }
+
+    /**
+     * @zh 读取 16 位无符号整数（小端序）
+     * @en Read 16-bit unsigned integer (little-endian)
+     */
+    public readUint16(): number {
+        this.checkBounds(2);
+        const value = this._view.getUint16(this._offset, true);
+        this._offset += 2;
+        return value;
+    }
+
+    /**
+     * @zh 读取 16 位有符号整数（小端序）
+     * @en Read 16-bit signed integer (little-endian)
+     */
+    public readInt16(): number {
+        this.checkBounds(2);
+        const value = this._view.getInt16(this._offset, true);
+        this._offset += 2;
+        return value;
+    }
+
+    /**
+     * @zh 读取 32 位无符号整数（小端序）
+     * @en Read 32-bit unsigned integer (little-endian)
+     */
+    public readUint32(): number {
+        this.checkBounds(4);
+        const value = this._view.getUint32(this._offset, true);
+        this._offset += 4;
+        return value;
+    }
+
+    /**
+     * @zh 读取 32 位有符号整数（小端序）
+     * @en Read 32-bit signed integer (little-endian)
+     */
+    public readInt32(): number {
+        this.checkBounds(4);
+        const value = this._view.getInt32(this._offset, true);
+        this._offset += 4;
+        return value;
+    }
+
+    /**
+     * @zh 读取 32 位浮点数（小端序）
+     * @en Read 32-bit float (little-endian)
+     */
+    public readFloat32(): number {
+        this.checkBounds(4);
+        const value = this._view.getFloat32(this._offset, true);
+        this._offset += 4;
+        return value;
+    }
+
+    /**
+     * @zh 读取 64 位浮点数（小端序）
+     * @en Read 64-bit float (little-endian)
+     */
+    public readFloat64(): number {
+        this.checkBounds(8);
+        const value = this._view.getFloat64(this._offset, true);
+        this._offset += 8;
+        return value;
+    }
+
+    /**
+     * @zh 读取变长整数
+     * @en Read variable-length integer
+     */
+    public readVarint(): number {
+        const [value, newOffset] = decodeVarint(this._buffer, this._offset);
+        this._offset = newOffset;
+        return value;
+    }
+
+    /**
+     * @zh 读取字符串（UTF-8 编码，带长度前缀）
+     * @en Read string (UTF-8 encoded with length prefix)
+     */
+    public readString(): string {
+        const length = this.readVarint();
+        this.checkBounds(length);
+
+        const bytes = this._buffer.subarray(this._offset, this._offset + length);
+        this._offset += length;
+
+        if (textDecoder) {
+            return textDecoder.decode(bytes);
+        } else {
+            return this.utf8BytesToString(bytes);
+        }
+    }
+
+    /**
+     * @zh 读取原始字节
+     * @en Read raw bytes
+     *
+     * @param length - @zh 要读取的字节数 @en Number of bytes to read
+     */
+    public readBytes(length: number): Uint8Array {
+        this.checkBounds(length);
+        const bytes = this._buffer.slice(this._offset, this._offset + length);
+        this._offset += length;
+        return bytes;
+    }
+
+    /**
+     * @zh 查看下一个字节但不移动读取位置
+     * @en Peek next byte without advancing read position
+     */
+    public peekUint8(): number {
+        this.checkBounds(1);
+        return this._buffer[this._offset]!;
+    }
+
+    /**
+     * @zh 跳过指定字节数
+     * @en Skip specified number of bytes
+     */
+    public skip(count: number): void {
+        this.checkBounds(count);
+        this._offset += count;
+    }
+
+    /**
+     * @zh 检查边界
+     * @en Check bounds
+     */
+    private checkBounds(size: number): void {
+        if (this._offset + size > this._buffer.length) {
+            throw new Error(`BinaryReader: buffer overflow (offset=${this._offset}, size=${size}, bufferLength=${this._buffer.length})`);
+        }
+    }
+
+    /**
+     * @zh UTF-8 字节转字符串（后备方案）
+     * @en UTF-8 bytes to string (fallback)
+     */
+    private utf8BytesToString(bytes: Uint8Array): string {
+        let result = '';
+        let i = 0;
+
+        while (i < bytes.length) {
+            let charCode: number;
+            const byte1 = bytes[i++]!;
+
+            if (byte1 < 0x80) {
+                charCode = byte1;
+            } else if (byte1 < 0xE0) {
+                const byte2 = bytes[i++]!;
+                charCode = ((byte1 & 0x1F) << 6) | (byte2 & 0x3F);
+            } else if (byte1 < 0xF0) {
+                const byte2 = bytes[i++]!;
+                const byte3 = bytes[i++]!;
+                charCode = ((byte1 & 0x0F) << 12) | ((byte2 & 0x3F) << 6) | (byte3 & 0x3F);
+            } else {
+                const byte2 = bytes[i++]!;
+                const byte3 = bytes[i++]!;
+                const byte4 = bytes[i++]!;
+                charCode = ((byte1 & 0x07) << 18) | ((byte2 & 0x3F) << 12) |
+                    ((byte3 & 0x3F) << 6) | (byte4 & 0x3F);
+
+                // Convert to surrogate pair
+                if (charCode > 0xFFFF) {
+                    charCode -= 0x10000;
+                    result += String.fromCharCode(0xD800 + (charCode >> 10));
+                    charCode = 0xDC00 + (charCode & 0x3FF);
+                }
+            }
+
+            result += String.fromCharCode(charCode);
+        }
+
+        return result;
+    }
+}

packages/framework/core/src/ECS/Sync/encoding/BinaryWriter.ts

@@ -0,0 +1,257 @@
+/**
+ * @zh 二进制写入器
+ * @en Binary Writer
+ *
+ * @zh 提供高效的二进制数据写入功能，支持自动扩容
+ * @en Provides efficient binary data writing with auto-expansion
+ */
+
+import { encodeVarint, varintSize } from './varint';
+
+/**
+ * @zh 文本编码器（使用浏览器原生 API）
+ * @en Text encoder (using browser native API)
+ */
+const textEncoder = typeof TextEncoder !== 'undefined' ? new TextEncoder() : null;
+
+/**
+ * @zh 二进制写入器
+ * @en Binary writer for encoding data
+ */
+export class BinaryWriter {
+    /**
+     * @zh 内部缓冲区
+     * @en Internal buffer
+     */
+    private _buffer: Uint8Array;
+
+    /**
+     * @zh DataView 用于写入数值
+     * @en DataView for writing numbers
+     */
+    private _view: DataView;
+
+    /**
+     * @zh 当前写入位置
+     * @en Current write position
+     */
+    private _offset: number = 0;
+
+    /**
+     * @zh 创建二进制写入器
+     * @en Create binary writer
+     *
+     * @param initialCapacity - @zh 初始容量 @en Initial capacity
+     */
+    constructor(initialCapacity: number = 256) {
+        this._buffer = new Uint8Array(initialCapacity);
+        this._view = new DataView(this._buffer.buffer);
+    }
+
+    /**
+     * @zh 获取当前写入位置
+     * @en Get current write position
+     */
+    public get offset(): number {
+        return this._offset;
+    }
+
+    /**
+     * @zh 获取写入的数据
+     * @en Get written data
+     *
+     * @returns @zh 包含写入数据的 Uint8Array @en Uint8Array containing written data
+     */
+    public toUint8Array(): Uint8Array {
+        return this._buffer.slice(0, this._offset);
+    }
+
+    /**
+     * @zh 重置写入器（清空数据但保留缓冲区）
+     * @en Reset writer (clear data but keep buffer)
+     */
+    public reset(): void {
+        this._offset = 0;
+    }
+
+    /**
+     * @zh 确保有足够空间
+     * @en Ensure enough space
+     *
+     * @param size - @zh 需要的额外字节数 @en Extra bytes needed
+     */
+    private ensureCapacity(size: number): void {
+        const required = this._offset + size;
+        if (required > this._buffer.length) {
+            // Double the buffer size or use required size, whichever is larger
+            const newSize = Math.max(this._buffer.length * 2, required);
+            const newBuffer = new Uint8Array(newSize);
+            newBuffer.set(this._buffer);
+            this._buffer = newBuffer;
+            this._view = new DataView(this._buffer.buffer);
+        }
+    }
+
+    /**
+     * @zh 写入单个字节
+     * @en Write single byte
+     */
+    public writeUint8(value: number): void {
+        this.ensureCapacity(1);
+        this._buffer[this._offset++] = value;
+    }
+
+    /**
+     * @zh 写入有符号字节
+     * @en Write signed byte
+     */
+    public writeInt8(value: number): void {
+        this.ensureCapacity(1);
+        this._view.setInt8(this._offset++, value);
+    }
+
+    /**
+     * @zh 写入布尔值
+     * @en Write boolean
+     */
+    public writeBoolean(value: boolean): void {
+        this.writeUint8(value ? 1 : 0);
+    }
+
+    /**
+     * @zh 写入 16 位无符号整数（小端序）
+     * @en Write 16-bit unsigned integer (little-endian)
+     */
+    public writeUint16(value: number): void {
+        this.ensureCapacity(2);
+        this._view.setUint16(this._offset, value, true);
+        this._offset += 2;
+    }
+
+    /**
+     * @zh 写入 16 位有符号整数（小端序）
+     * @en Write 16-bit signed integer (little-endian)
+     */
+    public writeInt16(value: number): void {
+        this.ensureCapacity(2);
+        this._view.setInt16(this._offset, value, true);
+        this._offset += 2;
+    }
+
+    /**
+     * @zh 写入 32 位无符号整数（小端序）
+     * @en Write 32-bit unsigned integer (little-endian)
+     */
+    public writeUint32(value: number): void {
+        this.ensureCapacity(4);
+        this._view.setUint32(this._offset, value, true);
+        this._offset += 4;
+    }
+
+    /**
+     * @zh 写入 32 位有符号整数（小端序）
+     * @en Write 32-bit signed integer (little-endian)
+     */
+    public writeInt32(value: number): void {
+        this.ensureCapacity(4);
+        this._view.setInt32(this._offset, value, true);
+        this._offset += 4;
+    }
+
+    /**
+     * @zh 写入 32 位浮点数（小端序）
+     * @en Write 32-bit float (little-endian)
+     */
+    public writeFloat32(value: number): void {
+        this.ensureCapacity(4);
+        this._view.setFloat32(this._offset, value, true);
+        this._offset += 4;
+    }
+
+    /**
+     * @zh 写入 64 位浮点数（小端序）
+     * @en Write 64-bit float (little-endian)
+     */
+    public writeFloat64(value: number): void {
+        this.ensureCapacity(8);
+        this._view.setFloat64(this._offset, value, true);
+        this._offset += 8;
+    }
+
+    /**
+     * @zh 写入变长整数
+     * @en Write variable-length integer
+     */
+    public writeVarint(value: number): void {
+        this.ensureCapacity(varintSize(value));
+        this._offset = encodeVarint(value, this._buffer, this._offset);
+    }
+
+    /**
+     * @zh 写入字符串（UTF-8 编码，带长度前缀）
+     * @en Write string (UTF-8 encoded with length prefix)
+     */
+    public writeString(value: string): void {
+        if (textEncoder) {
+            const encoded = textEncoder.encode(value);
+            this.writeVarint(encoded.length);
+            this.ensureCapacity(encoded.length);
+            this._buffer.set(encoded, this._offset);
+            this._offset += encoded.length;
+        } else {
+            // Fallback for environments without TextEncoder
+            const bytes = this.stringToUtf8Bytes(value);
+            this.writeVarint(bytes.length);
+            this.ensureCapacity(bytes.length);
+            this._buffer.set(bytes, this._offset);
+            this._offset += bytes.length;
+        }
+    }
+
+    /**
+     * @zh 写入原始字节
+     * @en Write raw bytes
+     */
+    public writeBytes(data: Uint8Array): void {
+        this.ensureCapacity(data.length);
+        this._buffer.set(data, this._offset);
+        this._offset += data.length;
+    }
+
+    /**
+     * @zh 字符串转 UTF-8 字节（后备方案）
+     * @en String to UTF-8 bytes (fallback)
+     */
+    private stringToUtf8Bytes(str: string): Uint8Array {
+        const bytes: number[] = [];
+        for (let i = 0; i < str.length; i++) {
+            let charCode = str.charCodeAt(i);
+
+            // Handle surrogate pairs
+            if (charCode >= 0xD800 && charCode <= 0xDBFF && i + 1 < str.length) {
+                const next = str.charCodeAt(i + 1);
+                if (next >= 0xDC00 && next <= 0xDFFF) {
+                    charCode = 0x10000 + ((charCode - 0xD800) << 10) + (next - 0xDC00);
+                    i++;
+                }
+            }
+
+            if (charCode < 0x80) {
+                bytes.push(charCode);
+            } else if (charCode < 0x800) {
+                bytes.push(0xC0 | (charCode >> 6));
+                bytes.push(0x80 | (charCode & 0x3F));
+            } else if (charCode < 0x10000) {
+                bytes.push(0xE0 | (charCode >> 12));
+                bytes.push(0x80 | ((charCode >> 6) & 0x3F));
+                bytes.push(0x80 | (charCode & 0x3F));
+            } else {
+                bytes.push(0xF0 | (charCode >> 18));
+                bytes.push(0x80 | ((charCode >> 12) & 0x3F));
+                bytes.push(0x80 | ((charCode >> 6) & 0x3F));
+                bytes.push(0x80 | (charCode & 0x3F));
+            }
+        }
+        return new Uint8Array(bytes);
+    }
+}

packages/framework/core/src/ECS/Sync/encoding/Decoder.ts

@@ -0,0 +1,372 @@
+/**
+ * @zh 组件状态解码器
+ * @en Component state decoder
+ *
+ * @zh 从二进制格式解码并应用到 ECS Component
+ * @en Decodes binary format and applies to ECS Components
+ */
+
+import type { Entity } from '../../Entity';
+import type { Component } from '../../Component';
+import type { Scene } from '../../Scene';
+import type { SyncType, SyncMetadata } from '../types';
+import { SyncOperation, SYNC_METADATA } from '../types';
+import { BinaryReader } from './BinaryReader';
+import { GlobalComponentRegistry } from '../../Core/ComponentStorage/ComponentRegistry';
+
+/**
+ * @zh 解码字段值
+ * @en Decode field value
+ */
+function decodeFieldValue(reader: BinaryReader, type: SyncType): any {
+    switch (type) {
+        case 'boolean':
+            return reader.readBoolean();
+        case 'int8':
+            return reader.readInt8();
+        case 'uint8':
+            return reader.readUint8();
+        case 'int16':
+            return reader.readInt16();
+        case 'uint16':
+            return reader.readUint16();
+        case 'int32':
+            return reader.readInt32();
+        case 'uint32':
+            return reader.readUint32();
+        case 'float32':
+            return reader.readFloat32();
+        case 'float64':
+            return reader.readFloat64();
+        case 'string':
+            return reader.readString();
+    }
+}
+
+/**
+ * @zh 解码并应用组件数据
+ * @en Decode and apply component data
+ *
+ * @param component - @zh 组件实例 @en Component instance
+ * @param metadata - @zh 组件同步元数据 @en Component sync metadata
+ * @param reader - @zh 二进制读取器 @en Binary reader
+ */
+export function decodeComponent(
+    component: Component,
+    metadata: SyncMetadata,
+    reader: BinaryReader
+): void {
+    const fieldCount = reader.readVarint();
+
+    for (let i = 0; i < fieldCount; i++) {
+        const fieldIndex = reader.readUint8();
+        const field = metadata.fields[fieldIndex];
+
+        if (field) {
+            const value = decodeFieldValue(reader, field.type);
+            // Directly set the private backing field to avoid triggering change tracking
+            (component as any)[`_sync_${field.name}`] = value;
+        } else {
+            // Unknown field, skip based on type info in metadata
+            console.warn(`Unknown sync field index: ${fieldIndex}`);
+        }
+    }
+}
+
+/**
+ * @zh 解码实体快照结果
+ * @en Decode entity snapshot result
+ */
+export interface DecodeEntityResult {
+    /**
+     * @zh 实体 ID
+     * @en Entity ID
+     */
+    entityId: number;
+
+    /**
+     * @zh 是否为新实体
+     * @en Whether it's a new entity
+     */
+    isNew: boolean;
+
+    /**
+     * @zh 解码的组件类型列表
+     * @en List of decoded component types
+     */
+    componentTypes: string[];
+}
+
+/**
+ * @zh 解码并应用实体数据
+ * @en Decode and apply entity data
+ *
+ * @param scene - @zh 场景 @en Scene
+ * @param reader - @zh 二进制读取器 @en Binary reader
+ * @param entityMap - @zh 实体 ID 映射（可选）@en Entity ID mapping (optional)
+ * @returns @zh 解码结果 @en Decode result
+ */
+export function decodeEntity(
+    scene: Scene,
+    reader: BinaryReader,
+    entityMap?: Map<number, Entity>
+): DecodeEntityResult {
+    const entityId = reader.readUint32();
+    const componentCount = reader.readVarint();
+    const componentTypes: string[] = [];
+
+    // Find or create entity
+    let entity: Entity | null | undefined = entityMap?.get(entityId);
+    let isNew = false;
+
+    if (!entity) {
+        entity = scene.findEntityById(entityId);
+    }
+
+    if (!entity) {
+        // Entity doesn't exist, create it
+        entity = scene.createEntity(`entity_${entityId}`);
+        isNew = true;
+        entityMap?.set(entityId, entity);
+    }
+
+    for (let i = 0; i < componentCount; i++) {
+        const typeId = reader.readString();
+        componentTypes.push(typeId);
+
+        // Find component class from GlobalComponentRegistry
+        const componentClass = GlobalComponentRegistry.getComponentType(typeId) as (new () => Component) | null;
+        if (!componentClass) {
+            console.warn(`Unknown component type: ${typeId}`);
+            // Skip component data - we need to read it to advance the reader
+            const fieldCount = reader.readVarint();
+            for (let j = 0; j < fieldCount; j++) {
+                reader.readUint8(); // fieldIndex
+                // We can't skip properly without knowing the type, so this is a problem
+                // For now, log error and break
+                console.error(`Cannot skip unknown component type: ${typeId}`);
+                break;
+            }
+            continue;
+        }
+
+        const metadata: SyncMetadata | undefined = (componentClass as any)[SYNC_METADATA];
+        if (!metadata) {
+            console.warn(`Component ${typeId} has no sync metadata`);
+            continue;
+        }
+
+        // Find or add component
+        let component = entity.getComponent(componentClass);
+        if (!component) {
+            component = entity.addComponent(new componentClass());
+        }
+
+        // Decode component data
+        decodeComponent(component, metadata, reader);
+    }
+
+    return { entityId, isNew, componentTypes };
+}
+
+/**
+ * @zh 解码快照结果
+ * @en Decode snapshot result
+ */
+export interface DecodeSnapshotResult {
+    /**
+     * @zh 操作类型
+     * @en Operation type
+     */
+    operation: SyncOperation;
+
+    /**
+     * @zh 解码的实体列表
+     * @en List of decoded entities
+     */
+    entities: DecodeEntityResult[];
+}
+
+/**
+ * @zh 解码状态快照
+ * @en Decode state snapshot
+ *
+ * @param scene - @zh 场景 @en Scene
+ * @param data - @zh 二进制数据 @en Binary data
+ * @param entityMap - @zh 实体 ID 映射（可选）@en Entity ID mapping (optional)
+ * @returns @zh 解码结果 @en Decode result
+ */
+export function decodeSnapshot(
+    scene: Scene,
+    data: Uint8Array,
+    entityMap?: Map<number, Entity>
+): DecodeSnapshotResult {
+    const reader = new BinaryReader(data);
+    const operation = reader.readUint8() as SyncOperation;
+    const entityCount = reader.readVarint();
+    const entities: DecodeEntityResult[] = [];
+
+    const map = entityMap || new Map<number, Entity>();
+
+    for (let i = 0; i < entityCount; i++) {
+        const result = decodeEntity(scene, reader, map);
+        entities.push(result);
+    }
+
+    return { operation, entities };
+}
+
+/**
+ * @zh 解码生成消息结果
+ * @en Decode spawn message result
+ */
+export interface DecodeSpawnResult {
+    /**
+     * @zh 实体
+     * @en Entity
+     */
+    entity: Entity;
+
+    /**
+     * @zh 预制体类型
+     * @en Prefab type
+     */
+    prefabType: string;
+
+    /**
+     * @zh 解码的组件类型列表
+     * @en List of decoded component types
+     */
+    componentTypes: string[];
+}
+
+/**
+ * @zh 解码实体生成消息
+ * @en Decode entity spawn message
+ *
+ * @param scene - @zh 场景 @en Scene
+ * @param data - @zh 二进制数据 @en Binary data
+ * @param entityMap - @zh 实体 ID 映射（可选）@en Entity ID mapping (optional)
+ * @returns @zh 解码结果，如果不是 SPAWN 消息则返回 null @en Decode result, or null if not a SPAWN message
+ */
+export function decodeSpawn(
+    scene: Scene,
+    data: Uint8Array,
+    entityMap?: Map<number, Entity>
+): DecodeSpawnResult | null {
+    const reader = new BinaryReader(data);
+    const operation = reader.readUint8();
+
+    if (operation !== SyncOperation.SPAWN) {
+        return null;
+    }
+
+    const entityId = reader.readUint32();
+    const prefabType = reader.readString();
+    const componentCount = reader.readVarint();
+    const componentTypes: string[] = [];
+
+    // Create entity
+    const entity = scene.createEntity(`entity_${entityId}`);
+    entityMap?.set(entityId, entity);
+
+    for (let i = 0; i < componentCount; i++) {
+        const typeId = reader.readString();
+        componentTypes.push(typeId);
+
+        const componentClass = GlobalComponentRegistry.getComponentType(typeId) as (new () => Component) | null;
+        if (!componentClass) {
+            console.warn(`Unknown component type: ${typeId}`);
+            // Try to skip
+            const fieldCount = reader.readVarint();
+            for (let j = 0; j < fieldCount; j++) {
+                reader.readUint8();
+            }
+            continue;
+        }
+
+        const metadata: SyncMetadata | undefined = (componentClass as any)[SYNC_METADATA];
+        if (!metadata) {
+            continue;
+        }
+
+        const component = entity.addComponent(new (componentClass as new () => Component)());
+        decodeComponent(component, metadata, reader);
+    }
+
+    return { entity, prefabType, componentTypes };
+}
+
+/**
+ * @zh 解码销毁消息结果
+ * @en Decode despawn message result
+ */
+export interface DecodeDespawnResult {
+    /**
+     * @zh 销毁的实体 ID 列表
+     * @en List of despawned entity IDs
+     */
+    entityIds: number[];
+}
+
+/**
+ * @zh 解码实体销毁消息
+ * @en Decode entity despawn message
+ *
+ * @param data - @zh 二进制数据 @en Binary data
+ * @returns @zh 解码结果，如果不是 DESPAWN 消息则返回 null @en Decode result, or null if not a DESPAWN message
+ */
+export function decodeDespawn(data: Uint8Array): DecodeDespawnResult | null {
+    const reader = new BinaryReader(data);
+    const operation = reader.readUint8();
+
+    if (operation !== SyncOperation.DESPAWN) {
+        return null;
+    }
+
+    const entityIds: number[] = [];
+
+    // Check if it's a single entity or batch
+    if (reader.remaining === 4) {
+        // Single entity
+        entityIds.push(reader.readUint32());
+    } else {
+        // Batch
+        const count = reader.readVarint();
+        for (let i = 0; i < count; i++) {
+            entityIds.push(reader.readUint32());
+        }
+    }
+
+    return { entityIds };
+}
+
+/**
+ * @zh 处理销毁消息（从场景中移除实体）
+ * @en Process despawn message (remove entities from scene)
+ *
+ * @param scene - @zh 场景 @en Scene
+ * @param data - @zh 二进制数据 @en Binary data
+ * @param entityMap - @zh 实体 ID 映射（可选）@en Entity ID mapping (optional)
+ * @returns @zh 移除的实体 ID 列表 @en List of removed entity IDs
+ */
+export function processDespawn(
+    scene: Scene,
+    data: Uint8Array,
+    entityMap?: Map<number, Entity>
+): number[] {
+    const result = decodeDespawn(data);
+    if (!result) {
+        return [];
+    }
+
+    for (const entityId of result.entityIds) {
+        const entity = entityMap?.get(entityId) || scene.findEntityById(entityId);
+        if (entity) {
+            entity.destroy();
+            entityMap?.delete(entityId);
+        }
+    }
+
+    return result.entityIds;
+}

packages/framework/core/src/ECS/Sync/encoding/Encoder.ts

@@ -0,0 +1,291 @@
+/**
+ * @zh 组件状态编码器
+ * @en Component state encoder
+ *
+ * @zh 将 ECS Component 的 @sync 字段编码为二进制格式
+ * @en Encodes @sync fields of ECS Components to binary format
+ */
+
+import type { Entity } from '../../Entity';
+import type { Component } from '../../Component';
+import type { SyncType, SyncMetadata } from '../types';
+import { SyncOperation, SYNC_METADATA, CHANGE_TRACKER } from '../types';
+import type { ChangeTracker } from '../ChangeTracker';
+import { BinaryWriter } from './BinaryWriter';
+
+/**
+ * @zh 编码单个字段值
+ * @en Encode a single field value
+ */
+function encodeFieldValue(writer: BinaryWriter, value: any, type: SyncType): void {
+    switch (type) {
+        case 'boolean':
+            writer.writeBoolean(value);
+            break;
+        case 'int8':
+            writer.writeInt8(value);
+            break;
+        case 'uint8':
+            writer.writeUint8(value);
+            break;
+        case 'int16':
+            writer.writeInt16(value);
+            break;
+        case 'uint16':
+            writer.writeUint16(value);
+            break;
+        case 'int32':
+            writer.writeInt32(value);
+            break;
+        case 'uint32':
+            writer.writeUint32(value);
+            break;
+        case 'float32':
+            writer.writeFloat32(value);
+            break;
+        case 'float64':
+            writer.writeFloat64(value);
+            break;
+        case 'string':
+            writer.writeString(value ?? '');
+            break;
+    }
+}
+
+/**
+ * @zh 编码组件的完整状态
+ * @en Encode full state of a component
+ *
+ * @zh 格式: [fieldCount: varint] ([fieldIndex: uint8] [value])...
+ * @en Format: [fieldCount: varint] ([fieldIndex: uint8] [value])...
+ *
+ * @param component - @zh 组件实例 @en Component instance
+ * @param metadata - @zh 组件同步元数据 @en Component sync metadata
+ * @param writer - @zh 二进制写入器 @en Binary writer
+ */
+export function encodeComponentFull(
+    component: Component,
+    metadata: SyncMetadata,
+    writer: BinaryWriter
+): void {
+    const fields = metadata.fields;
+    writer.writeVarint(fields.length);
+
+    for (const field of fields) {
+        writer.writeUint8(field.index);
+        const value = (component as any)[field.name];
+        encodeFieldValue(writer, value, field.type);
+    }
+}
+
+/**
+ * @zh 编码组件的增量状态（只编码脏字段）
+ * @en Encode delta state of a component (only dirty fields)
+ *
+ * @zh 格式: [dirtyCount: varint] ([fieldIndex: uint8] [value])...
+ * @en Format: [dirtyCount: varint] ([fieldIndex: uint8] [value])...
+ *
+ * @param component - @zh 组件实例 @en Component instance
+ * @param metadata - @zh 组件同步元数据 @en Component sync metadata
+ * @param tracker - @zh 变更追踪器 @en Change tracker
+ * @param writer - @zh 二进制写入器 @en Binary writer
+ * @returns @zh 是否有数据编码 @en Whether any data was encoded
+ */
+export function encodeComponentDelta(
+    component: Component,
+    metadata: SyncMetadata,
+    tracker: ChangeTracker,
+    writer: BinaryWriter
+): boolean {
+    if (!tracker.hasChanges()) {
+        return false;
+    }
+
+    const dirtyFields = tracker.getDirtyFields();
+    writer.writeVarint(dirtyFields.length);
+
+    for (const fieldIndex of dirtyFields) {
+        const field = metadata.fields[fieldIndex];
+        if (field) {
+            writer.writeUint8(field.index);
+            const value = (component as any)[field.name];
+            encodeFieldValue(writer, value, field.type);
+        }
+    }
+
+    return dirtyFields.length > 0;
+}
+
+/**
+ * @zh 编码实体的所有同步组件
+ * @en Encode all sync components of an entity
+ *
+ * @zh 格式:
+ * [entityId: uint32]
+ * [componentCount: varint]
+ * ([typeIdLength: varint] [typeId: string] [componentData])...
+ *
+ * @en Format:
+ * [entityId: uint32]
+ * [componentCount: varint]
+ * ([typeIdLength: varint] [typeId: string] [componentData])...
+ *
+ * @param entity - @zh 实体 @en Entity
+ * @param writer - @zh 二进制写入器 @en Binary writer
+ * @param deltaOnly - @zh 只编码增量 @en Only encode delta
+ * @returns @zh 编码的组件数量 @en Number of components encoded
+ */
+export function encodeEntity(
+    entity: Entity,
+    writer: BinaryWriter,
+    deltaOnly: boolean = false
+): number {
+    writer.writeUint32(entity.id);
+
+    const components = entity.components;
+    const syncComponents: Array<{
+        component: Component;
+        metadata: SyncMetadata;
+        tracker: ChangeTracker | undefined;
+    }> = [];
+
+    // Collect components with sync metadata
+    for (const component of components) {
+        const constructor = component.constructor as any;
+        const metadata: SyncMetadata | undefined = constructor[SYNC_METADATA];
+        if (metadata && metadata.fields.length > 0) {
+            const tracker = (component as any)[CHANGE_TRACKER] as ChangeTracker | undefined;
+
+            // For delta encoding, only include components with changes
+            if (deltaOnly && tracker && !tracker.hasChanges()) {
+                continue;
+            }
+
+            syncComponents.push({ component, metadata, tracker });
+        }
+    }
+
+    writer.writeVarint(syncComponents.length);
+
+    for (const { component, metadata, tracker } of syncComponents) {
+        // Write component type ID
+        writer.writeString(metadata.typeId);
+
+        if (deltaOnly && tracker) {
+            encodeComponentDelta(component, metadata, tracker, writer);
+        } else {
+            encodeComponentFull(component, metadata, writer);
+        }
+    }
+
+    return syncComponents.length;
+}
+
+/**
+ * @zh 编码状态快照（多个实体）
+ * @en Encode state snapshot (multiple entities)
+ *
+ * @zh 格式:
+ * [operation: uint8] (FULL=0, DELTA=1, SPAWN=2, DESPAWN=3)
+ * [entityCount: varint]
+ * (entityData)...
+ *
+ * @en Format:
+ * [operation: uint8] (FULL=0, DELTA=1, SPAWN=2, DESPAWN=3)
+ * [entityCount: varint]
+ * (entityData)...
+ *
+ * @param entities - @zh 要编码的实体数组 @en Entities to encode
+ * @param operation - @zh 同步操作类型 @en Sync operation type
+ * @returns @zh 编码后的二进制数据 @en Encoded binary data
+ */
+export function encodeSnapshot(
+    entities: Entity[],
+    operation: SyncOperation = SyncOperation.FULL
+): Uint8Array {
+    const writer = new BinaryWriter(1024);
+
+    writer.writeUint8(operation);
+    writer.writeVarint(entities.length);
+
+    const deltaOnly = operation === SyncOperation.DELTA;
+
+    for (const entity of entities) {
+        encodeEntity(entity, writer, deltaOnly);
+    }
+
+    return writer.toUint8Array();
+}
+
+/**
+ * @zh 编码实体生成消息
+ * @en Encode entity spawn message
+ *
+ * @param entity - @zh 生成的实体 @en Spawned entity
+ * @param prefabType - @zh 预制体类型（可选）@en Prefab type (optional)
+ * @returns @zh 编码后的二进制数据 @en Encoded binary data
+ */
+export function encodeSpawn(entity: Entity, prefabType?: string): Uint8Array {
+    const writer = new BinaryWriter(256);
+
+    writer.writeUint8(SyncOperation.SPAWN);
+    writer.writeUint32(entity.id);
+    writer.writeString(prefabType || '');
+
+    // Encode all sync components for initial state
+    const components = entity.components;
+    const syncComponents: Array<{ component: Component; metadata: SyncMetadata }> = [];
+
+    for (const component of components) {
+        const constructor = component.constructor as any;
+        const metadata: SyncMetadata | undefined = constructor[SYNC_METADATA];
+        if (metadata && metadata.fields.length > 0) {
+            syncComponents.push({ component, metadata });
+        }
+    }
+
+    writer.writeVarint(syncComponents.length);
+
+    for (const { component, metadata } of syncComponents) {
+        writer.writeString(metadata.typeId);
+        encodeComponentFull(component, metadata, writer);
+    }
+
+    return writer.toUint8Array();
+}
+
+/**
+ * @zh 编码实体销毁消息
+ * @en Encode entity despawn message
+ *
+ * @param entityId - @zh 销毁的实体 ID @en Despawned entity ID
+ * @returns @zh 编码后的二进制数据 @en Encoded binary data
+ */
+export function encodeDespawn(entityId: number): Uint8Array {
+    const writer = new BinaryWriter(8);
+
+    writer.writeUint8(SyncOperation.DESPAWN);
+    writer.writeUint32(entityId);
+
+    return writer.toUint8Array();
+}
+
+/**
+ * @zh 编码批量实体销毁消息
+ * @en Encode batch entity despawn message
+ *
+ * @param entityIds - @zh 销毁的实体 ID 数组 @en Despawned entity IDs
+ * @returns @zh 编码后的二进制数据 @en Encoded binary data
+ */
+export function encodeDespawnBatch(entityIds: number[]): Uint8Array {
+    const writer = new BinaryWriter(8 + entityIds.length * 4);
+
+    writer.writeUint8(SyncOperation.DESPAWN);
+    writer.writeVarint(entityIds.length);
+
+    for (const id of entityIds) {
+        writer.writeUint32(id);
+    }
+
+    return writer.toUint8Array();
+}

packages/framework/core/src/ECS/Sync/encoding/index.ts

@@ -0,0 +1,50 @@
+/**
+ * @zh 二进制编解码模块
+ * @en Binary encoding/decoding module
+ *
+ * @zh 提供 ECS Component 状态的二进制序列化和反序列化功能
+ * @en Provides binary serialization and deserialization for ECS Component state
+ */
+
+// Variable-length integer encoding
+export {
+    varintSize,
+    encodeVarint,
+    decodeVarint,
+    zigzagEncode,
+    zigzagDecode,
+    encodeSignedVarint,
+    decodeSignedVarint
+} from './varint';
+
+// Binary writer/reader
+export { BinaryWriter } from './BinaryWriter';
+export { BinaryReader } from './BinaryReader';
+
+// Encoder
+export {
+    encodeComponentFull,
+    encodeComponentDelta,
+    encodeEntity,
+    encodeSnapshot,
+    encodeSpawn,
+    encodeDespawn,
+    encodeDespawnBatch
+} from './Encoder';
+
+// Decoder
+export {
+    decodeComponent,
+    decodeEntity,
+    decodeSnapshot,
+    decodeSpawn,
+    decodeDespawn,
+    processDespawn
+} from './Decoder';
+
+export type {
+    DecodeEntityResult,
+    DecodeSnapshotResult,
+    DecodeSpawnResult,
+    DecodeDespawnResult
+} from './Decoder';

packages/framework/core/src/ECS/Sync/encoding/varint.ts

@@ -0,0 +1,137 @@
+/**
+ * @zh 变长整数编解码
+ * @en Variable-length integer encoding/decoding
+ *
+ * @zh 使用 LEB128 编码方式，可变长度编码正整数。
+ * 小数值使用更少字节，大数值使用更多字节。
+ * @en Uses LEB128 encoding for variable-length integer encoding.
+ * Small values use fewer bytes, large values use more bytes.
+ *
+ * | 值范围 | 字节数 |
+ * |--------|--------|
+ * | 0-127 | 1 |
+ * | 128-16383 | 2 |
+ * | 16384-2097151 | 3 |
+ * | 2097152-268435455 | 4 |
+ * | 268435456+ | 5 |
+ */
+
+/**
+ * @zh 计算变长整数所需的字节数
+ * @en Calculate bytes needed for a varint
+ *
+ * @param value - @zh 整数值 @en Integer value
+ * @returns @zh 所需字节数 @en Bytes needed
+ */
+export function varintSize(value: number): number {
+    if (value < 0) {
+        throw new Error('Varint only supports non-negative integers');
+    }
+    if (value < 128) return 1;
+    if (value < 16384) return 2;
+    if (value < 2097152) return 3;
+    if (value < 268435456) return 4;
+    return 5;
+}
+
+/**
+ * @zh 编码变长整数到字节数组
+ * @en Encode varint to byte array
+ *
+ * @param value - @zh 要编码的整数 @en Integer to encode
+ * @param buffer - @zh 目标缓冲区 @en Target buffer
+ * @param offset - @zh 写入偏移 @en Write offset
+ * @returns @zh 写入后的新偏移 @en New offset after writing
+ */
+export function encodeVarint(value: number, buffer: Uint8Array, offset: number): number {
+    if (value < 0) {
+        throw new Error('Varint only supports non-negative integers');
+    }
+
+    while (value >= 0x80) {
+        buffer[offset++] = (value & 0x7F) | 0x80;
+        value >>>= 7;
+    }
+    buffer[offset++] = value;
+    return offset;
+}
+
+/**
+ * @zh 从字节数组解码变长整数
+ * @en Decode varint from byte array
+ *
+ * @param buffer - @zh 源缓冲区 @en Source buffer
+ * @param offset - @zh 读取偏移 @en Read offset
+ * @returns @zh [解码值, 新偏移] @en [decoded value, new offset]
+ */
+export function decodeVarint(buffer: Uint8Array, offset: number): [number, number] {
+    let result = 0;
+    let shift = 0;
+    let byte: number;
+
+    do {
+        if (offset >= buffer.length) {
+            throw new Error('Varint decode: buffer overflow');
+        }
+        byte = buffer[offset++]!;
+        result |= (byte & 0x7F) << shift;
+        shift += 7;
+    } while (byte >= 0x80);
+
+    return [result, offset];
+}
+
+/**
+ * @zh 编码有符号整数（ZigZag 编码）
+ * @en Encode signed integer (ZigZag encoding)
+ *
+ * @zh ZigZag 编码将有符号整数映射到无符号整数：
+ * 0 → 0, -1 → 1, 1 → 2, -2 → 3, 2 → 4, ...
+ * 这样小的负数也能用较少字节表示。
+ * @en ZigZag encoding maps signed integers to unsigned:
+ * 0 → 0, -1 → 1, 1 → 2, -2 → 3, 2 → 4, ...
+ * This allows small negative numbers to use fewer bytes.
+ *
+ * @param value - @zh 有符号整数 @en Signed integer
+ * @returns @zh ZigZag 编码后的值 @en ZigZag encoded value
+ */
+export function zigzagEncode(value: number): number {
+    return (value << 1) ^ (value >> 31);
+}
+
+/**
+ * @zh 解码有符号整数（ZigZag 解码）
+ * @en Decode signed integer (ZigZag decoding)
+ *
+ * @param value - @zh ZigZag 编码的值 @en ZigZag encoded value
+ * @returns @zh 原始有符号整数 @en Original signed integer
+ */
+export function zigzagDecode(value: number): number {
+    return (value >>> 1) ^ -(value & 1);
+}
+
+/**
+ * @zh 编码有符号变长整数
+ * @en Encode signed varint
+ *
+ * @param value - @zh 有符号整数 @en Signed integer
+ * @param buffer - @zh 目标缓冲区 @en Target buffer
+ * @param offset - @zh 写入偏移 @en Write offset
+ * @returns @zh 写入后的新偏移 @en New offset after writing
+ */
+export function encodeSignedVarint(value: number, buffer: Uint8Array, offset: number): number {
+    return encodeVarint(zigzagEncode(value), buffer, offset);
+}
+
+/**
+ * @zh 解码有符号变长整数
+ * @en Decode signed varint
+ *
+ * @param buffer - @zh 源缓冲区 @en Source buffer
+ * @param offset - @zh 读取偏移 @en Read offset
+ * @returns @zh [解码值, 新偏移] @en [decoded value, new offset]
+ */
+export function decodeSignedVarint(buffer: Uint8Array, offset: number): [number, number] {
+    const [encoded, newOffset] = decodeVarint(buffer, offset);
+    return [zigzagDecode(encoded), newOffset];
+}

packages/framework/core/src/ECS/Sync/index.ts

@@ -0,0 +1,55 @@
+/**
+ * @zh ECS 网络同步模块
+ * @en ECS Network Synchronization Module
+ *
+ * @zh 提供基于 ECS Component 的网络状态同步功能：
+ * - @sync 装饰器：标记需要同步的字段
+ * - ChangeTracker：追踪字段级变更
+ * - 二进制编解码器：高效的网络序列化
+ *
+ * @en Provides network state synchronization based on ECS Components:
+ * - @sync decorator: Mark fields for synchronization
+ * - ChangeTracker: Track field-level changes
+ * - Binary encoder/decoder: Efficient network serialization
+ *
+ * @example
+ * ```typescript
+ * import { Component, ECSComponent, sync } from '@esengine/ecs-framework';
+ *
+ * @ECSComponent('Player')
+ * class PlayerComponent extends Component {
+ *     @sync("string") name: string = "";
+ *     @sync("uint16") score: number = 0;
+ *     @sync("float32") x: number = 0;
+ *     @sync("float32") y: number = 0;
+ * }
+ * ```
+ */
+
+// Types
+export {
+    SyncType,
+    SyncFieldMetadata,
+    SyncMetadata,
+    SyncOperation,
+    TYPE_SIZES,
+    SYNC_METADATA,
+    CHANGE_TRACKER
+} from './types';
+
+// Change Tracker
+export { ChangeTracker } from './ChangeTracker';
+
+// Decorators
+export {
+    sync,
+    getSyncMetadata,
+    hasSyncFields,
+    getChangeTracker,
+    initChangeTracker,
+    clearChanges,
+    hasChanges
+} from './decorators';
+
+// Encoding
+export * from './encoding';

packages/framework/core/src/ECS/Sync/types.ts

@@ -0,0 +1,127 @@
+/**
+ * @zh 网络同步类型定义
+ * @en Network synchronization type definitions
+ */
+
+/**
+ * @zh 支持的同步数据类型
+ * @en Supported sync data types
+ */
+export type SyncType =
+    | 'boolean'
+    | 'int8'
+    | 'uint8'
+    | 'int16'
+    | 'uint16'
+    | 'int32'
+    | 'uint32'
+    | 'float32'
+    | 'float64'
+    | 'string';
+
+/**
+ * @zh 同步字段元数据
+ * @en Sync field metadata
+ */
+export interface SyncFieldMetadata {
+    /**
+     * @zh 字段索引（用于二进制编码）
+     * @en Field index (for binary encoding)
+     */
+    index: number;
+
+    /**
+     * @zh 字段名称
+     * @en Field name
+     */
+    name: string;
+
+    /**
+     * @zh 字段类型
+     * @en Field type
+     */
+    type: SyncType;
+}
+
+/**
+ * @zh 组件同步元数据
+ * @en Component sync metadata
+ */
+export interface SyncMetadata {
+    /**
+     * @zh 组件类型 ID
+     * @en Component type ID
+     */
+    typeId: string;
+
+    /**
+     * @zh 同步字段列表（按索引排序）
+     * @en Sync fields list (sorted by index)
+     */
+    fields: SyncFieldMetadata[];
+
+    /**
+     * @zh 字段名到索引的映射
+     * @en Field name to index mapping
+     */
+    fieldIndexMap: Map<string, number>;
+}
+
+/**
+ * @zh 同步操作类型
+ * @en Sync operation type
+ */
+export enum SyncOperation {
+    /**
+     * @zh 完整快照
+     * @en Full snapshot
+     */
+    FULL = 0,
+
+    /**
+     * @zh 增量更新
+     * @en Delta update
+     */
+    DELTA = 1,
+
+    /**
+     * @zh 实体生成
+     * @en Entity spawn
+     */
+    SPAWN = 2,
+
+    /**
+     * @zh 实体销毁
+     * @en Entity despawn
+     */
+    DESPAWN = 3,
+}
+
+/**
+ * @zh 各类型的字节大小
+ * @en Byte size for each type
+ */
+export const TYPE_SIZES: Record<SyncType, number> = {
+    boolean: 1,
+    int8: 1,
+    uint8: 1,
+    int16: 2,
+    uint16: 2,
+    int32: 4,
+    uint32: 4,
+    float32: 4,
+    float64: 8,
+    string: -1, // 动态长度 | dynamic length
+};
+
+/**
+ * @zh 同步元数据的 Symbol 键
+ * @en Symbol key for sync metadata
+ */
+export const SYNC_METADATA = Symbol('SyncMetadata');
+
+/**
+ * @zh 变更追踪器的 Symbol 键
+ * @en Symbol key for change tracker
+ */
+export const CHANGE_TRACKER = Symbol('ChangeTracker');

packages/framework/core/src/ECS/WorldManager.ts

@@ -317,9 +317,7 @@ export class WorldManager implements IService {
     /**
      * @zh 更新所有活跃的World
      * @en Update all active Worlds
-     *
-     * @zh 应该在每帧的游戏循环中调用
-     * @en Should be called in each frame of game loop
+     * @internal 由 Core.update() 调用，用户不应直接调用
      */
     public updateAll(): void {
         if (!this._isRunning) return;

packages/framework/core/src/ECS/index.ts

@@ -57,3 +57,6 @@ export { EpochManager } from './Core/EpochManager';
 // Compiled Query
 export { CompiledQuery } from './Core/Query/CompiledQuery';
 export type { InstanceTypes } from './Core/Query/CompiledQuery';
+
+// Network Synchronization
+export * from './Sync';

packages/framework/core/tests/ECS/Sync/ChangeTracker.test.ts

@@ -0,0 +1,172 @@
+import { ChangeTracker } from '../../../src/ECS/Sync/ChangeTracker';
+
+describe('ChangeTracker - 变更追踪器测试', () => {
+    let tracker: ChangeTracker;
+
+    beforeEach(() => {
+        tracker = new ChangeTracker();
+    });
+
+    describe('基本功能', () => {
+        test('初始状态应该没有变更', () => {
+            expect(tracker.hasChanges()).toBe(false);
+            expect(tracker.getDirtyCount()).toBe(0);
+            expect(tracker.getDirtyFields()).toEqual([]);
+        });
+
+        test('setDirty 应该标记字段为脏', () => {
+            tracker.setDirty(0);
+
+            expect(tracker.hasChanges()).toBe(true);
+            expect(tracker.isDirty(0)).toBe(true);
+            expect(tracker.getDirtyCount()).toBe(1);
+            expect(tracker.getDirtyFields()).toEqual([0]);
+        });
+
+        test('多次 setDirty 同一字段应该只记录一次', () => {
+            tracker.setDirty(0);
+            tracker.setDirty(0);
+            tracker.setDirty(0);
+
+            expect(tracker.getDirtyCount()).toBe(1);
+            expect(tracker.getDirtyFields()).toEqual([0]);
+        });
+
+        test('setDirty 不同字段应该都被记录', () => {
+            tracker.setDirty(0);
+            tracker.setDirty(1);
+            tracker.setDirty(2);
+
+            expect(tracker.getDirtyCount()).toBe(3);
+            expect(tracker.getDirtyFields().sort()).toEqual([0, 1, 2]);
+        });
+    });
+
+    describe('isDirty 方法', () => {
+        test('未标记的字段应该返回 false', () => {
+            expect(tracker.isDirty(0)).toBe(false);
+            expect(tracker.isDirty(5)).toBe(false);
+        });
+
+        test('已标记的字段应该返回 true', () => {
+            tracker.setDirty(3);
+
+            expect(tracker.isDirty(3)).toBe(true);
+            expect(tracker.isDirty(0)).toBe(false);
+        });
+    });
+
+    describe('clear 方法', () => {
+        test('clear 应该清除所有变更', () => {
+            tracker.setDirty(0);
+            tracker.setDirty(1);
+            tracker.setDirty(2);
+
+            expect(tracker.hasChanges()).toBe(true);
+
+            tracker.clear();
+
+            expect(tracker.hasChanges()).toBe(false);
+            expect(tracker.getDirtyCount()).toBe(0);
+            expect(tracker.getDirtyFields()).toEqual([]);
+        });
+
+        test('clear 应该更新 lastSyncTime', () => {
+            const before = tracker.lastSyncTime;
+            tracker.setDirty(0);
+            tracker.clear();
+
+            expect(tracker.lastSyncTime).toBeGreaterThan(0);
+        });
+    });
+
+    describe('clearField 方法', () => {
+        test('clearField 应该只清除指定字段', () => {
+            tracker.setDirty(0);
+            tracker.setDirty(1);
+            tracker.setDirty(2);
+
+            tracker.clearField(1);
+
+            expect(tracker.isDirty(0)).toBe(true);
+            expect(tracker.isDirty(1)).toBe(false);
+            expect(tracker.isDirty(2)).toBe(true);
+            expect(tracker.getDirtyCount()).toBe(2);
+        });
+
+        test('清除最后一个字段应该使 hasChanges 返回 false', () => {
+            tracker.setDirty(0);
+            expect(tracker.hasChanges()).toBe(true);
+
+            tracker.clearField(0);
+
+            expect(tracker.hasChanges()).toBe(false);
+        });
+    });
+
+    describe('markAllDirty 方法', () => {
+        test('markAllDirty 应该标记所有字段', () => {
+            tracker.markAllDirty(5);
+
+            expect(tracker.hasChanges()).toBe(true);
+            expect(tracker.getDirtyCount()).toBe(5);
+            expect(tracker.getDirtyFields().sort()).toEqual([0, 1, 2, 3, 4]);
+        });
+
+        test('markAllDirty(0) 应该没有变更', () => {
+            tracker.markAllDirty(0);
+
+            expect(tracker.hasChanges()).toBe(false);
+            expect(tracker.getDirtyCount()).toBe(0);
+        });
+
+        test('markAllDirty 用于首次同步', () => {
+            tracker.markAllDirty(3);
+
+            expect(tracker.isDirty(0)).toBe(true);
+            expect(tracker.isDirty(1)).toBe(true);
+            expect(tracker.isDirty(2)).toBe(true);
+            expect(tracker.isDirty(3)).toBe(false);
+        });
+    });
+
+    describe('reset 方法', () => {
+        test('reset 应该重置所有状态', () => {
+            tracker.setDirty(0);
+            tracker.setDirty(1);
+            tracker.clear();
+
+            tracker.reset();
+
+            expect(tracker.hasChanges()).toBe(false);
+            expect(tracker.getDirtyCount()).toBe(0);
+            expect(tracker.lastSyncTime).toBe(0);
+        });
+    });
+
+    describe('边界情况', () => {
+        test('大量字段标记应该正常工作', () => {
+            const fieldCount = 1000;
+
+            for (let i = 0; i < fieldCount; i++) {
+                tracker.setDirty(i);
+            }
+
+            expect(tracker.getDirtyCount()).toBe(fieldCount);
+            expect(tracker.hasChanges()).toBe(true);
+        });
+
+        test('交替设置和清除应该正常工作', () => {
+            tracker.setDirty(0);
+            tracker.setDirty(1);
+            tracker.clearField(0);
+            tracker.setDirty(2);
+            tracker.clearField(1);
+
+            expect(tracker.isDirty(0)).toBe(false);
+            expect(tracker.isDirty(1)).toBe(false);
+            expect(tracker.isDirty(2)).toBe(true);
+            expect(tracker.getDirtyCount()).toBe(1);
+        });
+    });
+});

packages/framework/core/tests/ECS/Sync/decorators.test.ts

@@ -0,0 +1,327 @@
+import { Component } from '../../../src/ECS/Component';
+import { ECSComponent } from '../../../src/ECS/Decorators';
+import { Scene } from '../../../src/ECS/Scene';
+import {
+    sync,
+    getSyncMetadata,
+    hasSyncFields,
+    getChangeTracker,
+    initChangeTracker,
+    clearChanges,
+    hasChanges
+} from '../../../src/ECS/Sync/decorators';
+import { SYNC_METADATA, CHANGE_TRACKER } from '../../../src/ECS/Sync/types';
+
+@ECSComponent('SyncTest_PlayerComponent')
+class PlayerComponent extends Component {
+    @sync("string") name: string = "";
+    @sync("uint16") score: number = 0;
+    @sync("float32") x: number = 0;
+    @sync("float32") y: number = 0;
+
+    localData: string = "not synced";
+}
+
+@ECSComponent('SyncTest_SimpleComponent')
+class SimpleComponent extends Component {
+    @sync("boolean") active: boolean = true;
+    @sync("int32") value: number = 100;
+}
+
+@ECSComponent('SyncTest_NoSyncComponent')
+class NoSyncComponent extends Component {
+    localValue: number = 0;
+}
+
+@ECSComponent('SyncTest_AllTypesComponent')
+class AllTypesComponent extends Component {
+    @sync("boolean") boolField: boolean = false;
+    @sync("int8") int8Field: number = 0;
+    @sync("uint8") uint8Field: number = 0;
+    @sync("int16") int16Field: number = 0;
+    @sync("uint16") uint16Field: number = 0;
+    @sync("int32") int32Field: number = 0;
+    @sync("uint32") uint32Field: number = 0;
+    @sync("float32") float32Field: number = 0;
+    @sync("float64") float64Field: number = 0;
+    @sync("string") stringField: string = "";
+}
+
+describe('@sync 装饰器测试', () => {
+    describe('getSyncMetadata', () => {
+        test('应该返回带 @sync 字段的组件元数据', () => {
+            const metadata = getSyncMetadata(PlayerComponent);
+
+            expect(metadata).not.toBeNull();
+            expect(metadata!.typeId).toBe('SyncTest_PlayerComponent');
+            expect(metadata!.fields.length).toBe(4);
+        });
+
+        test('应该正确记录字段信息', () => {
+            const metadata = getSyncMetadata(PlayerComponent);
+
+            const nameField = metadata!.fields.find(f => f.name === 'name');
+            expect(nameField).toBeDefined();
+            expect(nameField!.type).toBe('string');
+            expect(nameField!.index).toBe(0);
+
+            const scoreField = metadata!.fields.find(f => f.name === 'score');
+            expect(scoreField).toBeDefined();
+            expect(scoreField!.type).toBe('uint16');
+
+            const xField = metadata!.fields.find(f => f.name === 'x');
+            expect(xField).toBeDefined();
+            expect(xField!.type).toBe('float32');
+        });
+
+        test('没有 @sync 字段的组件应该返回 null', () => {
+            const metadata = getSyncMetadata(NoSyncComponent);
+
+            expect(metadata).toBeNull();
+        });
+
+        test('可以从实例获取元数据', () => {
+            const component = new PlayerComponent();
+            const metadata = getSyncMetadata(component);
+
+            expect(metadata).not.toBeNull();
+            expect(metadata!.fields.length).toBe(4);
+        });
+
+        test('fieldIndexMap 应该正确映射字段名到索引', () => {
+            const metadata = getSyncMetadata(PlayerComponent);
+
+            expect(metadata!.fieldIndexMap.get('name')).toBe(0);
+            expect(metadata!.fieldIndexMap.get('score')).toBe(1);
+            expect(metadata!.fieldIndexMap.get('x')).toBe(2);
+            expect(metadata!.fieldIndexMap.get('y')).toBe(3);
+        });
+    });
+
+    describe('hasSyncFields', () => {
+        test('有 @sync 字段应该返回 true', () => {
+            expect(hasSyncFields(PlayerComponent)).toBe(true);
+            expect(hasSyncFields(new PlayerComponent())).toBe(true);
+        });
+
+        test('没有 @sync 字段应该返回 false', () => {
+            expect(hasSyncFields(NoSyncComponent)).toBe(false);
+            expect(hasSyncFields(new NoSyncComponent())).toBe(false);
+        });
+    });
+
+    describe('支持所有同步类型', () => {
+        test('AllTypesComponent 应该有所有类型的字段', () => {
+            const metadata = getSyncMetadata(AllTypesComponent);
+
+            expect(metadata).not.toBeNull();
+            expect(metadata!.fields.length).toBe(10);
+
+            const types = metadata!.fields.map(f => f.type);
+            expect(types).toContain('boolean');
+            expect(types).toContain('int8');
+            expect(types).toContain('uint8');
+            expect(types).toContain('int16');
+            expect(types).toContain('uint16');
+            expect(types).toContain('int32');
+            expect(types).toContain('uint32');
+            expect(types).toContain('float32');
+            expect(types).toContain('float64');
+            expect(types).toContain('string');
+        });
+    });
+
+    describe('字段值拦截', () => {
+        test('修改 @sync 字段应该触发变更追踪', () => {
+            const component = new PlayerComponent();
+            initChangeTracker(component);
+
+            const tracker = getChangeTracker(component);
+            expect(tracker).not.toBeNull();
+            tracker!.clear();
+
+            component.name = "TestPlayer";
+
+            expect(tracker!.hasChanges()).toBe(true);
+            expect(tracker!.isDirty(0)).toBe(true);
+        });
+
+        test('设置相同值不应该触发变更', () => {
+            const component = new PlayerComponent();
+            component.name = "Test";
+            initChangeTracker(component);
+
+            const tracker = getChangeTracker(component);
+            tracker!.clear();
+
+            component.name = "Test";
+
+            expect(tracker!.hasChanges()).toBe(false);
+        });
+
+        test('修改非 @sync 字段不应该触发变更', () => {
+            const component = new PlayerComponent();
+            initChangeTracker(component);
+
+            const tracker = getChangeTracker(component);
+            tracker!.clear();
+
+            component.localData = "new value";
+
+            expect(tracker!.hasChanges()).toBe(false);
+        });
+
+        test('多个字段变更应该都被追踪', () => {
+            const component = new PlayerComponent();
+            initChangeTracker(component);
+
+            const tracker = getChangeTracker(component);
+            tracker!.clear();
+
+            component.name = "NewName";
+            component.score = 100;
+            component.x = 1.5;
+
+            expect(tracker!.getDirtyCount()).toBe(3);
+            expect(tracker!.isDirty(0)).toBe(true);
+            expect(tracker!.isDirty(1)).toBe(true);
+            expect(tracker!.isDirty(2)).toBe(true);
+            expect(tracker!.isDirty(3)).toBe(false);
+        });
+    });
+
+    describe('initChangeTracker', () => {
+        test('应该创建变更追踪器', () => {
+            const component = new PlayerComponent();
+
+            expect(getChangeTracker(component)).toBeNull();
+
+            initChangeTracker(component);
+
+            expect(getChangeTracker(component)).not.toBeNull();
+        });
+
+        test('应该标记所有字段为脏（用于首次同步）', () => {
+            const component = new PlayerComponent();
+            initChangeTracker(component);
+
+            const tracker = getChangeTracker(component);
+            expect(tracker!.hasChanges()).toBe(true);
+            expect(tracker!.getDirtyCount()).toBe(4);
+        });
+
+        test('对没有 @sync 字段的组件应该抛出错误', () => {
+            const component = new NoSyncComponent();
+
+            expect(() => {
+                initChangeTracker(component);
+            }).toThrow();
+        });
+
+        test('重复初始化应该重新标记所有字段', () => {
+            const component = new PlayerComponent();
+            initChangeTracker(component);
+
+            const tracker = getChangeTracker(component);
+            tracker!.clear();
+
+            expect(tracker!.hasChanges()).toBe(false);
+
+            initChangeTracker(component);
+
+            expect(tracker!.hasChanges()).toBe(true);
+            expect(tracker!.getDirtyCount()).toBe(4);
+        });
+    });
+
+    describe('clearChanges', () => {
+        test('应该清除所有变更标记', () => {
+            const component = new PlayerComponent();
+            initChangeTracker(component);
+
+            expect(hasChanges(component)).toBe(true);
+
+            clearChanges(component);
+
+            expect(hasChanges(component)).toBe(false);
+        });
+
+        test('对没有追踪器的组件应该安全执行', () => {
+            const component = new PlayerComponent();
+
+            expect(() => {
+                clearChanges(component);
+            }).not.toThrow();
+        });
+    });
+
+    describe('hasChanges', () => {
+        test('初始化后应该有变更', () => {
+            const component = new PlayerComponent();
+            initChangeTracker(component);
+
+            expect(hasChanges(component)).toBe(true);
+        });
+
+        test('清除后应该没有变更', () => {
+            const component = new PlayerComponent();
+            initChangeTracker(component);
+            clearChanges(component);
+
+            expect(hasChanges(component)).toBe(false);
+        });
+
+        test('修改字段后应该有变更', () => {
+            const component = new PlayerComponent();
+            initChangeTracker(component);
+            clearChanges(component);
+
+            component.score = 999;
+
+            expect(hasChanges(component)).toBe(true);
+        });
+
+        test('没有追踪器应该返回 false', () => {
+            const component = new PlayerComponent();
+
+            expect(hasChanges(component)).toBe(false);
+        });
+    });
+
+    describe('与实体集成', () => {
+        let scene: Scene;
+
+        beforeEach(() => {
+            scene = new Scene();
+        });
+
+        test('添加到实体的组件应该能正常工作', () => {
+            const entity = scene.createEntity('TestEntity');
+            const component = new PlayerComponent();
+
+            entity.addComponent(component);
+            initChangeTracker(component);
+
+            component.name = "EntityPlayer";
+            component.x = 100;
+
+            const tracker = getChangeTracker(component);
+            expect(tracker!.hasChanges()).toBe(true);
+        });
+
+        test('从实体获取的组件应该保持追踪状态', () => {
+            const entity = scene.createEntity('TestEntity');
+            const component = new PlayerComponent();
+
+            entity.addComponent(component);
+            initChangeTracker(component);
+            clearChanges(component);
+
+            const retrieved = entity.getComponent(PlayerComponent);
+            retrieved!.score = 50;
+
+            expect(hasChanges(component)).toBe(true);
+            expect(hasChanges(retrieved!)).toBe(true);
+        });
+    });
+});

packages/framework/core/tests/ECS/Sync/encoding.test.ts

@@ -0,0 +1,530 @@
+import { BinaryWriter } from '../../../src/ECS/Sync/encoding/BinaryWriter';
+import { BinaryReader } from '../../../src/ECS/Sync/encoding/BinaryReader';
+import { Component } from '../../../src/ECS/Component';
+import { ECSComponent } from '../../../src/ECS/Decorators';
+import { Scene } from '../../../src/ECS/Scene';
+import { sync, initChangeTracker, clearChanges } from '../../../src/ECS/Sync/decorators';
+import {
+    encodeSnapshot,
+    encodeSpawn,
+    encodeDespawn,
+    encodeDespawnBatch
+} from '../../../src/ECS/Sync/encoding/Encoder';
+import {
+    decodeSnapshot,
+    decodeSpawn,
+    processDespawn
+} from '../../../src/ECS/Sync/encoding/Decoder';
+import { SyncOperation } from '../../../src/ECS/Sync/types';
+
+@ECSComponent('EncodingTest_PlayerComponent')
+class PlayerComponent extends Component {
+    @sync("string") name: string = "";
+    @sync("uint16") score: number = 0;
+    @sync("float32") x: number = 0;
+    @sync("float32") y: number = 0;
+}
+
+@ECSComponent('EncodingTest_AllTypesComponent')
+class AllTypesComponent extends Component {
+    @sync("boolean") boolField: boolean = false;
+    @sync("int8") int8Field: number = 0;
+    @sync("uint8") uint8Field: number = 0;
+    @sync("int16") int16Field: number = 0;
+    @sync("uint16") uint16Field: number = 0;
+    @sync("int32") int32Field: number = 0;
+    @sync("uint32") uint32Field: number = 0;
+    @sync("float32") float32Field: number = 0;
+    @sync("float64") float64Field: number = 0;
+    @sync("string") stringField: string = "";
+}
+
+describe('BinaryWriter/BinaryReader - 二进制读写器测试', () => {
+    describe('基本数值类型', () => {
+        test('writeUint8/readUint8', () => {
+            const writer = new BinaryWriter();
+            writer.writeUint8(0);
+            writer.writeUint8(127);
+            writer.writeUint8(255);
+
+            const reader = new BinaryReader(writer.toUint8Array());
+            expect(reader.readUint8()).toBe(0);
+            expect(reader.readUint8()).toBe(127);
+            expect(reader.readUint8()).toBe(255);
+        });
+
+        test('writeInt8/readInt8', () => {
+            const writer = new BinaryWriter();
+            writer.writeInt8(-128);
+            writer.writeInt8(0);
+            writer.writeInt8(127);
+
+            const reader = new BinaryReader(writer.toUint8Array());
+            expect(reader.readInt8()).toBe(-128);
+            expect(reader.readInt8()).toBe(0);
+            expect(reader.readInt8()).toBe(127);
+        });
+
+        test('writeBoolean/readBoolean', () => {
+            const writer = new BinaryWriter();
+            writer.writeBoolean(true);
+            writer.writeBoolean(false);
+
+            const reader = new BinaryReader(writer.toUint8Array());
+            expect(reader.readBoolean()).toBe(true);
+            expect(reader.readBoolean()).toBe(false);
+        });
+
+        test('writeUint16/readUint16', () => {
+            const writer = new BinaryWriter();
+            writer.writeUint16(0);
+            writer.writeUint16(32767);
+            writer.writeUint16(65535);
+
+            const reader = new BinaryReader(writer.toUint8Array());
+            expect(reader.readUint16()).toBe(0);
+            expect(reader.readUint16()).toBe(32767);
+            expect(reader.readUint16()).toBe(65535);
+        });
+
+        test('writeInt16/readInt16', () => {
+            const writer = new BinaryWriter();
+            writer.writeInt16(-32768);
+            writer.writeInt16(0);
+            writer.writeInt16(32767);
+
+            const reader = new BinaryReader(writer.toUint8Array());
+            expect(reader.readInt16()).toBe(-32768);
+            expect(reader.readInt16()).toBe(0);
+            expect(reader.readInt16()).toBe(32767);
+        });
+
+        test('writeUint32/readUint32', () => {
+            const writer = new BinaryWriter();
+            writer.writeUint32(0);
+            writer.writeUint32(2147483647);
+            writer.writeUint32(4294967295);
+
+            const reader = new BinaryReader(writer.toUint8Array());
+            expect(reader.readUint32()).toBe(0);
+            expect(reader.readUint32()).toBe(2147483647);
+            expect(reader.readUint32()).toBe(4294967295);
+        });
+
+        test('writeInt32/readInt32', () => {
+            const writer = new BinaryWriter();
+            writer.writeInt32(-2147483648);
+            writer.writeInt32(0);
+            writer.writeInt32(2147483647);
+
+            const reader = new BinaryReader(writer.toUint8Array());
+            expect(reader.readInt32()).toBe(-2147483648);
+            expect(reader.readInt32()).toBe(0);
+            expect(reader.readInt32()).toBe(2147483647);
+        });
+
+        test('writeFloat32/readFloat32', () => {
+            const writer = new BinaryWriter();
+            writer.writeFloat32(0);
+            writer.writeFloat32(3.14);
+            writer.writeFloat32(-100.5);
+
+            const reader = new BinaryReader(writer.toUint8Array());
+            expect(reader.readFloat32()).toBe(0);
+            expect(reader.readFloat32()).toBeCloseTo(3.14, 5);
+            expect(reader.readFloat32()).toBeCloseTo(-100.5, 5);
+        });
+
+        test('writeFloat64/readFloat64', () => {
+            const writer = new BinaryWriter();
+            writer.writeFloat64(0);
+            writer.writeFloat64(Math.PI);
+            writer.writeFloat64(-1e100);
+
+            const reader = new BinaryReader(writer.toUint8Array());
+            expect(reader.readFloat64()).toBe(0);
+            expect(reader.readFloat64()).toBe(Math.PI);
+            expect(reader.readFloat64()).toBe(-1e100);
+        });
+    });
+
+    describe('变长整数 (Varint)', () => {
+        test('小值 (1字节)', () => {
+            const writer = new BinaryWriter();
+            writer.writeVarint(0);
+            writer.writeVarint(127);
+
+            const reader = new BinaryReader(writer.toUint8Array());
+            expect(reader.readVarint()).toBe(0);
+            expect(reader.readVarint()).toBe(127);
+        });
+
+        test('中等值 (2字节)', () => {
+            const writer = new BinaryWriter();
+            writer.writeVarint(128);
+            writer.writeVarint(16383);
+
+            const reader = new BinaryReader(writer.toUint8Array());
+            expect(reader.readVarint()).toBe(128);
+            expect(reader.readVarint()).toBe(16383);
+        });
+
+        test('大值 (多字节)', () => {
+            const writer = new BinaryWriter();
+            writer.writeVarint(16384);
+            writer.writeVarint(1000000);
+            writer.writeVarint(2147483647);
+
+            const reader = new BinaryReader(writer.toUint8Array());
+            expect(reader.readVarint()).toBe(16384);
+            expect(reader.readVarint()).toBe(1000000);
+            expect(reader.readVarint()).toBe(2147483647);
+        });
+    });
+
+    describe('字符串', () => {
+        test('空字符串', () => {
+            const writer = new BinaryWriter();
+            writer.writeString("");
+
+            const reader = new BinaryReader(writer.toUint8Array());
+            expect(reader.readString()).toBe("");
+        });
+
+        test('ASCII 字符串', () => {
+            const writer = new BinaryWriter();
+            writer.writeString("Hello, World!");
+
+            const reader = new BinaryReader(writer.toUint8Array());
+            expect(reader.readString()).toBe("Hello, World!");
+        });
+
+        test('Unicode 字符串', () => {
+            const writer = new BinaryWriter();
+            writer.writeString("你好世界");
+            writer.writeString("日本語テスト");
+            writer.writeString("emoji: 🎮🎯");
+
+            const reader = new BinaryReader(writer.toUint8Array());
+            expect(reader.readString()).toBe("你好世界");
+            expect(reader.readString()).toBe("日本語テスト");
+            expect(reader.readString()).toBe("emoji: 🎮🎯");
+        });
+
+        test('混合字符串', () => {
+            const writer = new BinaryWriter();
+            writer.writeString("Player_玩家_プレイヤー");
+
+            const reader = new BinaryReader(writer.toUint8Array());
+            expect(reader.readString()).toBe("Player_玩家_プレイヤー");
+        });
+    });
+
+    describe('字节数组', () => {
+        test('writeBytes/readBytes', () => {
+            const writer = new BinaryWriter();
+            const data = new Uint8Array([1, 2, 3, 4, 5]);
+            writer.writeBytes(data);
+
+            const reader = new BinaryReader(writer.toUint8Array());
+            const result = reader.readBytes(5);
+            expect(Array.from(result)).toEqual([1, 2, 3, 4, 5]);
+        });
+    });
+
+    describe('BinaryReader 辅助方法', () => {
+        test('remaining 应该返回剩余字节数', () => {
+            const writer = new BinaryWriter();
+            writer.writeUint32(100);
+            writer.writeUint32(200);
+
+            const reader = new BinaryReader(writer.toUint8Array());
+            expect(reader.remaining).toBe(8);
+
+            reader.readUint32();
+            expect(reader.remaining).toBe(4);
+        });
+
+        test('hasMore 应该正确判断', () => {
+            const writer = new BinaryWriter();
+            writer.writeUint8(1);
+
+            const reader = new BinaryReader(writer.toUint8Array());
+            expect(reader.hasMore()).toBe(true);
+
+            reader.readUint8();
+            expect(reader.hasMore()).toBe(false);
+        });
+
+        test('peekUint8 不应该移动读取位置', () => {
+            const writer = new BinaryWriter();
+            writer.writeUint8(42);
+            writer.writeUint8(99);
+
+            const reader = new BinaryReader(writer.toUint8Array());
+            expect(reader.peekUint8()).toBe(42);
+            expect(reader.peekUint8()).toBe(42);
+            expect(reader.offset).toBe(0);
+        });
+
+        test('skip 应该跳过指定字节', () => {
+            const writer = new BinaryWriter();
+            writer.writeUint8(1);
+            writer.writeUint8(2);
+            writer.writeUint8(3);
+
+            const reader = new BinaryReader(writer.toUint8Array());
+            reader.skip(2);
+            expect(reader.readUint8()).toBe(3);
+        });
+
+        test('读取超出范围应该抛出错误', () => {
+            const reader = new BinaryReader(new Uint8Array([1, 2]));
+
+            expect(() => reader.readUint32()).toThrow();
+        });
+    });
+
+    describe('BinaryWriter 自动扩容', () => {
+        test('应该自动扩容', () => {
+            const writer = new BinaryWriter(4);
+
+            for (let i = 0; i < 100; i++) {
+                writer.writeUint32(i);
+            }
+
+            expect(writer.offset).toBe(400);
+
+            const reader = new BinaryReader(writer.toUint8Array());
+            for (let i = 0; i < 100; i++) {
+                expect(reader.readUint32()).toBe(i);
+            }
+        });
+
+        test('reset 应该清空数据但保留缓冲区', () => {
+            const writer = new BinaryWriter();
+            writer.writeUint32(100);
+            writer.writeUint32(200);
+
+            expect(writer.offset).toBe(8);
+
+            writer.reset();
+
+            expect(writer.offset).toBe(0);
+            expect(writer.toUint8Array().length).toBe(0);
+        });
+    });
+});
+
+describe('Encoder/Decoder - 实体编解码测试', () => {
+    let scene: Scene;
+
+    // Components are auto-registered via @ECSComponent decorator
+
+    beforeEach(() => {
+        scene = new Scene();
+    });
+
+    describe('encodeSnapshot/decodeSnapshot', () => {
+        test('应该编码和解码单个实体', () => {
+            const entity = scene.createEntity('Player1');
+            const comp = entity.addComponent(new PlayerComponent());
+            comp.name = "TestPlayer";
+            comp.score = 100;
+            comp.x = 10.5;
+            comp.y = 20.5;
+            initChangeTracker(comp);
+
+            const data = encodeSnapshot([entity], SyncOperation.FULL);
+
+            const targetScene = new Scene();
+            const result = decodeSnapshot(targetScene, data);
+
+            expect(result.operation).toBe(SyncOperation.FULL);
+            expect(result.entities.length).toBe(1);
+            expect(result.entities[0].isNew).toBe(true);
+
+            const decodedEntity = targetScene.entities.buffer[0];
+            expect(decodedEntity).toBeDefined();
+
+            const decodedComp = decodedEntity!.getComponent(PlayerComponent);
+            expect(decodedComp).not.toBeNull();
+            expect(decodedComp!.name).toBe("TestPlayer");
+            expect(decodedComp!.score).toBe(100);
+            expect(decodedComp!.x).toBeCloseTo(10.5, 5);
+            expect(decodedComp!.y).toBeCloseTo(20.5, 5);
+        });
+
+        test('应该编码和解码多个实体', () => {
+            const entity1 = scene.createEntity('Player1');
+            const comp1 = entity1.addComponent(new PlayerComponent());
+            comp1.name = "Player1";
+            comp1.score = 50;
+            initChangeTracker(comp1);
+
+            const entity2 = scene.createEntity('Player2');
+            const comp2 = entity2.addComponent(new PlayerComponent());
+            comp2.name = "Player2";
+            comp2.score = 100;
+            initChangeTracker(comp2);
+
+            const data = encodeSnapshot([entity1, entity2], SyncOperation.FULL);
+
+            const targetScene = new Scene();
+            const result = decodeSnapshot(targetScene, data);
+
+            expect(result.entities.length).toBe(2);
+        });
+
+        test('DELTA 操作应该只编码变更的字段', () => {
+            const entity = scene.createEntity('Player1');
+            const comp = entity.addComponent(new PlayerComponent());
+            comp.name = "TestPlayer";
+            comp.score = 0;
+            initChangeTracker(comp);
+            clearChanges(comp);
+
+            comp.score = 200;
+
+            const deltaData = encodeSnapshot([entity], SyncOperation.DELTA);
+
+            expect(deltaData[0]).toBe(SyncOperation.DELTA);
+            expect(deltaData.length).toBeLessThan(50);
+        });
+    });
+
+    describe('encodeSpawn/decodeSpawn', () => {
+        test('应该编码和解码实体生成', () => {
+            const entity = scene.createEntity('SpawnedEntity');
+            const comp = entity.addComponent(new PlayerComponent());
+            comp.name = "SpawnedPlayer";
+            comp.score = 50;
+            comp.x = 100;
+            comp.y = 200;
+            initChangeTracker(comp);
+
+            const data = encodeSpawn(entity, 'Player');
+
+            const targetScene = new Scene();
+            const result = decodeSpawn(targetScene, data);
+
+            expect(result).not.toBeNull();
+            expect(result!.prefabType).toBe('Player');
+            expect(result!.componentTypes).toContain('EncodingTest_PlayerComponent');
+
+            const decodedComp = result!.entity.getComponent(PlayerComponent);
+            expect(decodedComp!.name).toBe("SpawnedPlayer");
+            expect(decodedComp!.score).toBe(50);
+        });
+
+        test('没有 prefabType 应该也能工作', () => {
+            const entity = scene.createEntity('Entity');
+            const comp = entity.addComponent(new PlayerComponent());
+            initChangeTracker(comp);
+
+            const data = encodeSpawn(entity);
+
+            const targetScene = new Scene();
+            const result = decodeSpawn(targetScene, data);
+
+            expect(result!.prefabType).toBe('');
+        });
+    });
+
+    describe('encodeDespawn/processDespawn', () => {
+        test('应该编码和处理单个实体销毁', () => {
+            const targetScene = new Scene();
+            const entity = targetScene.createEntity('ToBeDestroyed');
+            const entityId = entity.id;
+
+            const data = encodeDespawn(entityId);
+
+            expect(data[0]).toBe(SyncOperation.DESPAWN);
+
+            const removedIds = processDespawn(targetScene, data);
+
+            expect(removedIds).toContain(entityId);
+        });
+
+        test('应该编码和处理批量实体销毁', () => {
+            const targetScene = new Scene();
+            const entity1 = targetScene.createEntity('Entity1');
+            const entity2 = targetScene.createEntity('Entity2');
+            const entity3 = targetScene.createEntity('Entity3');
+
+            const data = encodeDespawnBatch([entity1.id, entity2.id, entity3.id]);
+
+            expect(data[0]).toBe(SyncOperation.DESPAWN);
+
+            const removedIds = processDespawn(targetScene, data);
+
+            expect(removedIds.length).toBe(3);
+            expect(removedIds).toContain(entity1.id);
+            expect(removedIds).toContain(entity2.id);
+            expect(removedIds).toContain(entity3.id);
+        });
+    });
+
+    describe('所有同步类型编解码', () => {
+        test('应该正确编解码所有类型', () => {
+            const entity = scene.createEntity('AllTypes');
+            const comp = entity.addComponent(new AllTypesComponent());
+            comp.boolField = true;
+            comp.int8Field = -100;
+            comp.uint8Field = 200;
+            comp.int16Field = -30000;
+            comp.uint16Field = 60000;
+            comp.int32Field = -2000000000;
+            comp.uint32Field = 4000000000;
+            comp.float32Field = 3.14159;
+            comp.float64Field = Math.PI;
+            comp.stringField = "测试字符串";
+            initChangeTracker(comp);
+
+            const data = encodeSnapshot([entity], SyncOperation.FULL);
+
+            const targetScene = new Scene();
+            decodeSnapshot(targetScene, data);
+
+            const decodedEntity = targetScene.entities.buffer[0];
+            const decodedComp = decodedEntity!.getComponent(AllTypesComponent);
+
+            expect(decodedComp!.boolField).toBe(true);
+            expect(decodedComp!.int8Field).toBe(-100);
+            expect(decodedComp!.uint8Field).toBe(200);
+            expect(decodedComp!.int16Field).toBe(-30000);
+            expect(decodedComp!.uint16Field).toBe(60000);
+            expect(decodedComp!.int32Field).toBe(-2000000000);
+            expect(decodedComp!.uint32Field).toBe(4000000000);
+            expect(decodedComp!.float32Field).toBeCloseTo(3.14159, 4);
+            expect(decodedComp!.float64Field).toBe(Math.PI);
+            expect(decodedComp!.stringField).toBe("测试字符串");
+        });
+    });
+
+    describe('边界情况', () => {
+        test('空实体列表应该能编码', () => {
+            const data = encodeSnapshot([], SyncOperation.FULL);
+
+            const targetScene = new Scene();
+            const result = decodeSnapshot(targetScene, data);
+
+            expect(result.entities.length).toBe(0);
+        });
+
+        test('entityMap 应该正确跟踪实体', () => {
+            const entity = scene.createEntity('Tracked');
+            const comp = entity.addComponent(new PlayerComponent());
+            comp.name = "TrackedPlayer";
+            initChangeTracker(comp);
+
+            const data = encodeSnapshot([entity], SyncOperation.FULL);
+
+            const targetScene = new Scene();
+            const entityMap = new Map();
+            decodeSnapshot(targetScene, data, entityMap);
+
+            expect(entityMap.size).toBe(1);
+        });
+    });
+});

packages/framework/fsm/CHANGELOG.md

@@ -1,5 +1,21 @@
 # @esengine/fsm
 
+## 2.0.1
+
+### Patch Changes
+
+- Updated dependencies [[`a08a84b`](https://github.com/esengine/esengine/commit/a08a84b7db28e1140cbc637d442552747ad81c76)]:
+    - @esengine/ecs-framework@2.5.1
+    - @esengine/blueprint@2.0.1
+
+## 2.0.0
+
+### Patch Changes
+
+- Updated dependencies [[`1f297ac`](https://github.com/esengine/esengine/commit/1f297ac769e37700f72fb4425639af7090898256)]:
+    - @esengine/ecs-framework@2.5.0
+    - @esengine/blueprint@2.0.0
+
 ## 1.0.3
 
 ### Patch Changes

packages/framework/fsm/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@esengine/fsm",
-    "version": "1.0.3",
+    "version": "2.0.1",
     "description": "Finite State Machine for ECS Framework / ECS 框架的有限状态机",
     "type": "module",
     "main": "./dist/index.js",

packages/framework/network/CHANGELOG.md

@@ -1,5 +1,104 @@
 # @esengine/network
 
+## 3.0.1
+
+### Patch Changes
+
+- Updated dependencies [[`a08a84b`](https://github.com/esengine/esengine/commit/a08a84b7db28e1140cbc637d442552747ad81c76)]:
+    - @esengine/ecs-framework@2.5.1
+    - @esengine/blueprint@2.0.1
+
+## 3.0.0
+
+### Minor Changes
+
+- [#390](https://github.com/esengine/esengine/pull/390) [`1f297ac`](https://github.com/esengine/esengine/commit/1f297ac769e37700f72fb4425639af7090898256) Thanks [@esengine](https://github.com/esengine)! - feat: ECS 网络状态同步系统
+
+    ## @esengine/ecs-framework
+
+    新增 `@sync` 装饰器和二进制编解码器，支持基于 Component 的网络状态同步：
+
+    ```typescript
+    import { Component, ECSComponent, sync } from '@esengine/ecs-framework';
+
+    @ECSComponent('Player')
+    class PlayerComponent extends Component {
+        @sync('string') name: string = '';
+        @sync('uint16') score: number = 0;
+        @sync('float32') x: number = 0;
+        @sync('float32') y: number = 0;
+    }
+    ```
+
+    ### 新增导出
+    - `sync` - 标记需要同步的字段装饰器
+    - `SyncType` - 支持的同步类型
+    - `SyncOperation` - 同步操作类型（FULL/DELTA/SPAWN/DESPAWN）
+    - `encodeSnapshot` / `decodeSnapshot` - 批量编解码
+    - `encodeSpawn` / `decodeSpawn` - 实体生成编解码
+    - `encodeDespawn` / `processDespawn` - 实体销毁编解码
+    - `ChangeTracker` - 字段级变更追踪
+    - `initChangeTracker` / `clearChanges` / `hasChanges` - 变更追踪工具函数
+
+    ### 内部方法标记
+
+    将以下方法标记为 `@internal`，用户应通过 `Core.update()` 驱动更新：
+    - `Scene.update()`
+    - `SceneManager.update()`
+    - `WorldManager.updateAll()`
+
+    ## @esengine/network
+
+    新增 `ComponentSyncSystem`，基于 `@sync` 装饰器自动同步组件状态：
+
+    ```typescript
+    import { ComponentSyncSystem } from '@esengine/network';
+
+    // 服务端：编码状态
+    const data = syncSystem.encodeAllEntities(false);
+
+    // 客户端：解码状态
+    syncSystem.applySnapshot(data);
+    ```
+
+    ### 修复
+    - 将 `@esengine/ecs-framework` 从 devDependencies 移到 peerDependencies
+
+    ## @esengine/server
+
+    新增 `ECSRoom`，带有 ECS World 支持的房间基类：
+
+    ```typescript
+    import { ECSRoom } from '@esengine/server/ecs';
+
+    // 服务端启动
+    Core.create();
+    setInterval(() => Core.update(1 / 60), 16);
+
+    // 定义房间
+    class GameRoom extends ECSRoom {
+        onCreate() {
+            this.addSystem(new PhysicsSystem());
+        }
+
+        onJoin(player: Player) {
+            const entity = this.createPlayerEntity(player.id);
+            entity.addComponent(new PlayerComponent());
+        }
+    }
+    ```
+
+    ### 设计
+    - 每个 `ECSRoom` 在 `Core.worldManager` 中创建独立的 World
+    - `Core.update()` 统一更新 Time 和所有 World
+    - `onTick()` 只处理状态同步逻辑
+
+### Patch Changes
+
+- Updated dependencies [[`1f297ac`](https://github.com/esengine/esengine/commit/1f297ac769e37700f72fb4425639af7090898256)]:
+    - @esengine/ecs-framework@2.5.0
+    - @esengine/blueprint@2.0.0
+
 ## 2.2.0
 
 ### Minor Changes

packages/framework/network/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@esengine/network",
-    "version": "2.2.0",
+    "version": "3.0.1",
     "description": "Network synchronization for multiplayer games",
     "esengine": {
         "plugin": true,
@@ -30,6 +30,15 @@
     "dependencies": {
         "@esengine/rpc": "workspace:*"
     },
+    "peerDependencies": {
+        "@esengine/ecs-framework": "workspace:*",
+        "@esengine/blueprint": "workspace:*"
+    },
+    "peerDependenciesMeta": {
+        "@esengine/blueprint": {
+            "optional": true
+        }
+    },
     "devDependencies": {
         "@esengine/blueprint": "workspace:*",
         "@esengine/ecs-framework": "workspace:*",

packages/framework/network/src/index.ts

@@ -133,6 +133,11 @@ export type {
     EntityDeltaState,
     DeltaSyncData,
     DeltaCompressionConfig,
+    // Component sync types
+    ComponentSyncEventType,
+    ComponentSyncEvent,
+    ComponentSyncEventListener,
+    ComponentSyncConfig,
 } from './sync'
 
 export {
@@ -150,6 +155,9 @@ export {
     DeltaFlags,
     StateDeltaCompressor,
     createStateDeltaCompressor,
+    // Component sync
+    ComponentSyncSystem,
+    createComponentSyncSystem,
 } from './sync'
 
 // ============================================================================

packages/framework/network/src/sync/ComponentSync.ts

@@ -0,0 +1,408 @@
+/**
+ * @zh 组件同步系统
+ * @en Component Sync System
+ *
+ * @zh 基于 @sync 装饰器的组件状态同步，与 ecs-framework 的 Sync 模块集成
+ * @en Component state synchronization based on @sync decorator, integrated with ecs-framework Sync module
+ */
+
+import {
+    EntitySystem,
+    Matcher,
+    type Entity,
+    // Sync types
+    SyncOperation,
+    SYNC_METADATA,
+    CHANGE_TRACKER,
+    type SyncMetadata,
+    type ChangeTracker,
+    // Encoding
+    encodeSnapshot,
+    encodeSpawn,
+    encodeDespawn,
+    decodeSnapshot,
+    decodeSpawn,
+    processDespawn,
+    GlobalComponentRegistry,
+    type DecodeSnapshotResult,
+    type DecodeSpawnResult,
+} from '@esengine/ecs-framework';
+
+import { NetworkIdentity } from '../components/NetworkIdentity';
+
+// =============================================================================
+// Types | 类型定义
+// =============================================================================
+
+/**
+ * @zh 组件同步事件类型
+ * @en Component sync event type
+ */
+export type ComponentSyncEventType =
+    | 'entitySpawned'
+    | 'entityDespawned'
+    | 'stateUpdated';
+
+/**
+ * @zh 组件同步事件
+ * @en Component sync event
+ */
+export interface ComponentSyncEvent {
+    type: ComponentSyncEventType;
+    entityId: number;
+    prefabType?: string;
+}
+
+/**
+ * @zh 组件同步事件监听器
+ * @en Component sync event listener
+ */
+export type ComponentSyncEventListener = (event: ComponentSyncEvent) => void;
+
+/**
+ * @zh 组件同步配置
+ * @en Component sync configuration
+ */
+export interface ComponentSyncConfig {
+    /**
+     * @zh 是否启用增量同步
+     * @en Whether to enable delta sync
+     */
+    enableDeltaSync: boolean;
+
+    /**
+     * @zh 同步间隔（毫秒）
+     * @en Sync interval in milliseconds
+     */
+    syncInterval: number;
+}
+
+const DEFAULT_CONFIG: ComponentSyncConfig = {
+    enableDeltaSync: true,
+    syncInterval: 50, // 20 Hz
+};
+
+// =============================================================================
+// ComponentSyncSystem | 组件同步系统
+// =============================================================================
+
+/**
+ * @zh 组件同步系统
+ * @en Component sync system
+ *
+ * @zh 基于 @sync 装饰器自动同步组件状态
+ * @en Automatically syncs component state based on @sync decorator
+ *
+ * @example
+ * ```typescript
+ * // Server-side: broadcast state
+ * const syncSystem = scene.getSystem(ComponentSyncSystem);
+ * const data = syncSystem.encodeAllEntities(false); // delta
+ * broadcast(data);
+ *
+ * // Client-side: receive state
+ * const syncSystem = scene.getSystem(ComponentSyncSystem);
+ * syncSystem.applySnapshot(data);
+ * ```
+ */
+export class ComponentSyncSystem extends EntitySystem {
+    private readonly _config: ComponentSyncConfig;
+    private readonly _syncEntityMap: Map<number, Entity> = new Map();
+    private readonly _syncListeners: Set<ComponentSyncEventListener> = new Set();
+    private _lastSyncTime: number = 0;
+    private _isServer: boolean = false;
+
+    constructor(config?: Partial<ComponentSyncConfig>, isServer: boolean = false) {
+        super(Matcher.all(NetworkIdentity));
+        this._config = { ...DEFAULT_CONFIG, ...config };
+        this._isServer = isServer;
+    }
+
+    /**
+     * @zh 设置是否为服务端模式
+     * @en Set whether in server mode
+     */
+    public set isServer(value: boolean) {
+        this._isServer = value;
+    }
+
+    /**
+     * @zh 获取是否为服务端模式
+     * @en Get whether in server mode
+     */
+    public get isServer(): boolean {
+        return this._isServer;
+    }
+
+    /**
+     * @zh 获取配置
+     * @en Get configuration
+     */
+    public get config(): Readonly<ComponentSyncConfig> {
+        return this._config;
+    }
+
+    /**
+     * @zh 添加同步事件监听器
+     * @en Add sync event listener
+     */
+    public addSyncListener(listener: ComponentSyncEventListener): void {
+        this._syncListeners.add(listener);
+    }
+
+    /**
+     * @zh 移除同步事件监听器
+     * @en Remove sync event listener
+     */
+    public removeSyncListener(listener: ComponentSyncEventListener): void {
+        this._syncListeners.delete(listener);
+    }
+
+    /**
+     * @zh 注册同步组件类型
+     * @en Register sync component type
+     *
+     * @zh 客户端需要调用此方法注册所有需要同步的组件类型
+     * @en Client needs to call this to register all component types to be synced
+     */
+    public registerComponent<T extends new () => any>(componentClass: T): void {
+        GlobalComponentRegistry.register(componentClass as any);
+    }
+
+    // =========================================================================
+    // Server-side: Encoding | 服务端：编码
+    // =========================================================================
+
+    /**
+     * @zh 编码所有实体状态
+     * @en Encode all entities state
+     *
+     * @param fullSync - @zh 是否完整同步（首次连接时使用）@en Whether to do full sync (for initial connection)
+     * @returns @zh 编码后的二进制数据 @en Encoded binary data
+     */
+    public encodeAllEntities(fullSync: boolean = false): Uint8Array {
+        const entities = this.getMatchingEntities();
+        const operation = fullSync ? SyncOperation.FULL : SyncOperation.DELTA;
+
+        const data = encodeSnapshot(entities, operation);
+
+        // Clear change trackers after encoding delta
+        if (!fullSync) {
+            this._clearChangeTrackers(entities);
+        }
+
+        return data;
+    }
+
+    /**
+     * @zh 编码有变更的实体
+     * @en Encode entities with changes
+     *
+     * @returns @zh 编码后的二进制数据，如果没有变更返回 null @en Encoded binary data, or null if no changes
+     */
+    public encodeDelta(): Uint8Array | null {
+        const entities = this.getMatchingEntities();
+        const changedEntities = entities.filter(entity => this._hasChanges(entity));
+
+        if (changedEntities.length === 0) {
+            return null;
+        }
+
+        const data = encodeSnapshot(changedEntities, SyncOperation.DELTA);
+        this._clearChangeTrackers(changedEntities);
+
+        return data;
+    }
+
+    /**
+     * @zh 编码实体生成消息
+     * @en Encode entity spawn message
+     */
+    public encodeSpawn(entity: Entity, prefabType?: string): Uint8Array {
+        return encodeSpawn(entity, prefabType);
+    }
+
+    /**
+     * @zh 编码实体销毁消息
+     * @en Encode entity despawn message
+     */
+    public encodeDespawn(entityId: number): Uint8Array {
+        return encodeDespawn(entityId);
+    }
+
+    // =========================================================================
+    // Client-side: Decoding | 客户端：解码
+    // =========================================================================
+
+    /**
+     * @zh 应用状态快照
+     * @en Apply state snapshot
+     *
+     * @param data - @zh 二进制数据 @en Binary data
+     * @returns @zh 解码结果 @en Decode result
+     */
+    public applySnapshot(data: Uint8Array): DecodeSnapshotResult {
+        if (!this.scene) {
+            throw new Error('ComponentSyncSystem not attached to a scene');
+        }
+
+        const result = decodeSnapshot(this.scene, data, this._syncEntityMap);
+
+        // Emit events
+        for (const entityResult of result.entities) {
+            if (entityResult.isNew) {
+                this._emitEvent({
+                    type: 'entitySpawned',
+                    entityId: entityResult.entityId,
+                });
+            } else {
+                this._emitEvent({
+                    type: 'stateUpdated',
+                    entityId: entityResult.entityId,
+                });
+            }
+        }
+
+        return result;
+    }
+
+    /**
+     * @zh 应用实体生成消息
+     * @en Apply entity spawn message
+     *
+     * @param data - @zh 二进制数据 @en Binary data
+     * @returns @zh 解码结果，如果不是 SPAWN 消息返回 null @en Decode result, or null if not a SPAWN message
+     */
+    public applySpawn(data: Uint8Array): DecodeSpawnResult | null {
+        if (!this.scene) {
+            throw new Error('ComponentSyncSystem not attached to a scene');
+        }
+
+        const result = decodeSpawn(this.scene, data, this._syncEntityMap);
+
+        if (result) {
+            this._emitEvent({
+                type: 'entitySpawned',
+                entityId: result.entity.id,
+                prefabType: result.prefabType,
+            });
+        }
+
+        return result;
+    }
+
+    /**
+     * @zh 应用实体销毁消息
+     * @en Apply entity despawn message
+     *
+     * @param data - @zh 二进制数据 @en Binary data
+     * @returns @zh 销毁的实体 ID 列表 @en List of despawned entity IDs
+     */
+    public applyDespawn(data: Uint8Array): number[] {
+        if (!this.scene) {
+            throw new Error('ComponentSyncSystem not attached to a scene');
+        }
+
+        const entityIds = processDespawn(this.scene, data, this._syncEntityMap);
+
+        for (const entityId of entityIds) {
+            this._emitEvent({
+                type: 'entityDespawned',
+                entityId,
+            });
+        }
+
+        return entityIds;
+    }
+
+    // =========================================================================
+    // Entity Management | 实体管理
+    // =========================================================================
+
+    /**
+     * @zh 通过网络 ID 获取实体
+     * @en Get entity by network ID
+     */
+    public getEntityById(entityId: number): Entity | undefined {
+        return this._syncEntityMap.get(entityId);
+    }
+
+    /**
+     * @zh 获取所有匹配的实体
+     * @en Get all matching entities
+     */
+    public getMatchingEntities(): Entity[] {
+        return this.entities.slice();
+    }
+
+    // =========================================================================
+    // Internal | 内部方法
+    // =========================================================================
+
+    protected override process(entities: readonly Entity[]): void {
+        // Server mode: auto-sync at interval
+        if (this._isServer && this._config.enableDeltaSync) {
+            const now = Date.now();
+            if (now - this._lastSyncTime >= this._config.syncInterval) {
+                // Note: actual broadcast should be done by the user
+                // This just updates the sync time
+                this._lastSyncTime = now;
+            }
+        }
+
+        // Update entity ID map
+        for (const entity of entities) {
+            const identity = entity.getComponent(NetworkIdentity);
+            if (identity) {
+                this._syncEntityMap.set(entity.id, entity);
+            }
+        }
+    }
+
+    private _hasChanges(entity: Entity): boolean {
+        for (const component of entity.components) {
+            const tracker = (component as any)[CHANGE_TRACKER] as ChangeTracker | undefined;
+            if (tracker?.hasChanges()) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private _clearChangeTrackers(entities: Entity[]): void {
+        for (const entity of entities) {
+            for (const component of entity.components) {
+                const tracker = (component as any)[CHANGE_TRACKER] as ChangeTracker | undefined;
+                if (tracker) {
+                    tracker.clear();
+                }
+            }
+        }
+    }
+
+    private _emitEvent(event: ComponentSyncEvent): void {
+        for (const listener of this._syncListeners) {
+            try {
+                listener(event);
+            } catch (error) {
+                console.error('ComponentSyncSystem: event listener error:', error);
+            }
+        }
+    }
+
+    protected override onDestroy(): void {
+        this._syncEntityMap.clear();
+        this._syncListeners.clear();
+    }
+}
+
+/**
+ * @zh 创建组件同步系统
+ * @en Create component sync system
+ */
+export function createComponentSyncSystem(
+    config?: Partial<ComponentSyncConfig>,
+    isServer: boolean = false
+): ComponentSyncSystem {
+    return new ComponentSyncSystem(config, isServer);
+}

packages/framework/network/src/sync/index.ts

@@ -62,3 +62,19 @@ export {
     StateDeltaCompressor,
     createStateDeltaCompressor
 } from './StateDelta';
+
+// =============================================================================
+// 组件同步 | Component Sync (@sync decorator based)
+// =============================================================================
+
+export type {
+    ComponentSyncEventType,
+    ComponentSyncEvent,
+    ComponentSyncEventListener,
+    ComponentSyncConfig
+} from './ComponentSync';
+
+export {
+    ComponentSyncSystem,
+    createComponentSyncSystem
+} from './ComponentSync';

packages/framework/pathfinding/CHANGELOG.md

@@ -1,5 +1,21 @@
 # @esengine/pathfinding
 
+## 2.0.1
+
+### Patch Changes
+
+- Updated dependencies [[`a08a84b`](https://github.com/esengine/esengine/commit/a08a84b7db28e1140cbc637d442552747ad81c76)]:
+    - @esengine/ecs-framework@2.5.1
+    - @esengine/blueprint@2.0.1
+
+## 2.0.0
+
+### Patch Changes
+
+- Updated dependencies [[`1f297ac`](https://github.com/esengine/esengine/commit/1f297ac769e37700f72fb4425639af7090898256)]:
+    - @esengine/ecs-framework@2.5.0
+    - @esengine/blueprint@2.0.0
+
 ## 1.0.4
 
 ### Patch Changes

packages/framework/pathfinding/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@esengine/pathfinding",
-    "version": "1.1.0",
+    "version": "2.0.1",
     "description": "寻路系统 | Pathfinding System - A*, Grid, NavMesh",
     "type": "module",
     "main": "./dist/index.js",

packages/framework/procgen/CHANGELOG.md

@@ -1,5 +1,21 @@
 # @esengine/procgen
 
+## 2.0.1
+
+### Patch Changes
+
+- Updated dependencies [[`a08a84b`](https://github.com/esengine/esengine/commit/a08a84b7db28e1140cbc637d442552747ad81c76)]:
+    - @esengine/ecs-framework@2.5.1
+    - @esengine/blueprint@2.0.1
+
+## 2.0.0
+
+### Patch Changes
+
+- Updated dependencies [[`1f297ac`](https://github.com/esengine/esengine/commit/1f297ac769e37700f72fb4425639af7090898256)]:
+    - @esengine/ecs-framework@2.5.0
+    - @esengine/blueprint@2.0.0
+
 ## 1.0.3
 
 ### Patch Changes

packages/framework/procgen/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@esengine/procgen",
-    "version": "1.0.3",
+    "version": "2.0.1",
     "description": "Procedural generation tools for ECS Framework / ECS 框架的程序化生成工具",
     "type": "module",
     "main": "./dist/index.js",

packages/framework/server/CHANGELOG.md

@@ -1,5 +1,122 @@
 # @esengine/server
 
+## 2.0.0
+
+### Minor Changes
+
+- [#390](https://github.com/esengine/esengine/pull/390) [`1f297ac`](https://github.com/esengine/esengine/commit/1f297ac769e37700f72fb4425639af7090898256) Thanks [@esengine](https://github.com/esengine)! - feat: ECS 网络状态同步系统
+
+    ## @esengine/ecs-framework
+
+    新增 `@sync` 装饰器和二进制编解码器，支持基于 Component 的网络状态同步：
+
+    ```typescript
+    import { Component, ECSComponent, sync } from '@esengine/ecs-framework';
+
+    @ECSComponent('Player')
+    class PlayerComponent extends Component {
+        @sync('string') name: string = '';
+        @sync('uint16') score: number = 0;
+        @sync('float32') x: number = 0;
+        @sync('float32') y: number = 0;
+    }
+    ```
+
+    ### 新增导出
+    - `sync` - 标记需要同步的字段装饰器
+    - `SyncType` - 支持的同步类型
+    - `SyncOperation` - 同步操作类型（FULL/DELTA/SPAWN/DESPAWN）
+    - `encodeSnapshot` / `decodeSnapshot` - 批量编解码
+    - `encodeSpawn` / `decodeSpawn` - 实体生成编解码
+    - `encodeDespawn` / `processDespawn` - 实体销毁编解码
+    - `ChangeTracker` - 字段级变更追踪
+    - `initChangeTracker` / `clearChanges` / `hasChanges` - 变更追踪工具函数
+
+    ### 内部方法标记
+
+    将以下方法标记为 `@internal`，用户应通过 `Core.update()` 驱动更新：
+    - `Scene.update()`
+    - `SceneManager.update()`
+    - `WorldManager.updateAll()`
+
+    ## @esengine/network
+
+    新增 `ComponentSyncSystem`，基于 `@sync` 装饰器自动同步组件状态：
+
+    ```typescript
+    import { ComponentSyncSystem } from '@esengine/network';
+
+    // 服务端：编码状态
+    const data = syncSystem.encodeAllEntities(false);
+
+    // 客户端：解码状态
+    syncSystem.applySnapshot(data);
+    ```
+
+    ### 修复
+    - 将 `@esengine/ecs-framework` 从 devDependencies 移到 peerDependencies
+
+    ## @esengine/server
+
+    新增 `ECSRoom`，带有 ECS World 支持的房间基类：
+
+    ```typescript
+    import { ECSRoom } from '@esengine/server/ecs';
+
+    // 服务端启动
+    Core.create();
+    setInterval(() => Core.update(1 / 60), 16);
+
+    // 定义房间
+    class GameRoom extends ECSRoom {
+        onCreate() {
+            this.addSystem(new PhysicsSystem());
+        }
+
+        onJoin(player: Player) {
+            const entity = this.createPlayerEntity(player.id);
+            entity.addComponent(new PlayerComponent());
+        }
+    }
+    ```
+
+    ### 设计
+    - 每个 `ECSRoom` 在 `Core.worldManager` 中创建独立的 World
+    - `Core.update()` 统一更新 Time 和所有 World
+    - `onTick()` 只处理状态同步逻辑
+
+### Patch Changes
+
+- Updated dependencies [[`1f297ac`](https://github.com/esengine/esengine/commit/1f297ac769e37700f72fb4425639af7090898256)]:
+    - @esengine/ecs-framework@2.5.0
+
+## 1.3.0
+
+### Minor Changes
+
+- [#388](https://github.com/esengine/esengine/pull/388) [`afdeb00`](https://github.com/esengine/esengine/commit/afdeb00b4df9427e7f03b91558bf95804a837b70) Thanks [@esengine](https://github.com/esengine)! - feat(server): 添加可插拔速率限制系统 | add pluggable rate limiting system
+    - 新增令牌桶策略 (`TokenBucketStrategy`) - 推荐用于一般场景
+    - 新增滑动窗口策略 (`SlidingWindowStrategy`) - 精确跟踪
+    - 新增固定窗口策略 (`FixedWindowStrategy`) - 简单高效
+    - 新增房间速率限制 mixin (`withRateLimit`)
+    - 新增速率限制装饰器 (`@rateLimit`, `@noRateLimit`)
+    - 新增按消息类型限流装饰器 (`@rateLimitMessage`, `@noRateLimitMessage`)
+    - 支持与认证系统组合使用
+    - 导出路径: `@esengine/server/ratelimit`
+
+## 1.2.0
+
+### Minor Changes
+
+- [#386](https://github.com/esengine/esengine/pull/386) [`61a13ba`](https://github.com/esengine/esengine/commit/61a13baca2e1e8fba14e23d439521ec0e6b7ca6e) Thanks [@esengine](https://github.com/esengine)! - feat(server): 添加可插拔认证系统 | add pluggable authentication system
+    - 新增 JWT 认证提供者 (`createJwtAuthProvider`)
+    - 新增 Session 认证提供者 (`createSessionAuthProvider`)
+    - 新增服务器认证 mixin (`withAuth`)
+    - 新增房间认证 mixin (`withRoomAuth`)
+    - 新增认证装饰器 (`@requireAuth`, `@requireRole`)
+    - 新增测试工具 (`MockAuthProvider`)
+    - 导出路径: `@esengine/server/auth`, `@esengine/server/auth/testing`
+
 ## 1.1.4
 
 ### Patch Changes

packages/framework/server/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@esengine/server",
-  "version": "1.1.4",
+  "version": "2.0.0",
   "description": "Game server framework for ESEngine with file-based routing",
   "type": "module",
   "main": "./dist/index.js",
@@ -11,9 +11,25 @@
       "import": "./dist/index.js",
       "types": "./dist/index.d.ts"
     },
+    "./auth": {
+      "import": "./dist/auth/index.js",
+      "types": "./dist/auth/index.d.ts"
+    },
+    "./auth/testing": {
+      "import": "./dist/auth/testing/index.js",
+      "types": "./dist/auth/testing/index.d.ts"
+    },
+    "./ratelimit": {
+      "import": "./dist/ratelimit/index.js",
+      "types": "./dist/ratelimit/index.d.ts"
+    },
     "./testing": {
       "import": "./dist/testing/index.js",
       "types": "./dist/testing/index.d.ts"
+    },
+    "./ecs": {
+      "import": "./dist/ecs/index.js",
+      "types": "./dist/ecs/index.d.ts"
     }
   },
   "files": [
@@ -33,11 +49,24 @@
     "@esengine/rpc": "workspace:*"
   },
   "peerDependencies": {
-    "ws": ">=8.0.0"
+    "ws": ">=8.0.0",
+    "jsonwebtoken": ">=9.0.0",
+    "@esengine/ecs-framework": ">=2.5.1"
+  },
+  "peerDependenciesMeta": {
+    "jsonwebtoken": {
+      "optional": true
+    },
+    "@esengine/ecs-framework": {
+      "optional": true
+    }
   },
   "devDependencies": {
+    "@esengine/ecs-framework": "workspace:*",
+    "@types/jsonwebtoken": "^9.0.0",
     "@types/node": "^20.0.0",
     "@types/ws": "^8.5.13",
+    "jsonwebtoken": "^9.0.0",
     "rimraf": "^5.0.0",
     "tsup": "^8.0.0",
     "typescript": "^5.7.0",

packages/framework/server/src/auth/__tests__/MockAuthProvider.test.ts

@@ -0,0 +1,214 @@
+import { describe, it, expect, beforeEach } from 'vitest';
+import { MockAuthProvider, createMockAuthProvider, type MockUser } from '../testing/MockAuthProvider';
+
+describe('MockAuthProvider', () => {
+    const testUsers: MockUser[] = [
+        { id: '1', name: 'Alice', roles: ['player'] },
+        { id: '2', name: 'Bob', roles: ['admin', 'player'] },
+        { id: '3', name: 'Charlie', roles: ['guest'] }
+    ];
+
+    let provider: MockAuthProvider;
+
+    beforeEach(() => {
+        provider = createMockAuthProvider({
+            users: testUsers
+        });
+    });
+
+    describe('basic properties', () => {
+        it('should have name "mock"', () => {
+            expect(provider.name).toBe('mock');
+        });
+    });
+
+    describe('verify', () => {
+        it('should verify existing user by id (token)', async () => {
+            const result = await provider.verify('1');
+            expect(result.success).toBe(true);
+            expect(result.user?.id).toBe('1');
+            expect(result.user?.name).toBe('Alice');
+        });
+
+        it('should return user roles', async () => {
+            const result = await provider.verify('2');
+            expect(result.success).toBe(true);
+            expect(result.user?.roles).toEqual(['admin', 'player']);
+        });
+
+        it('should fail for unknown user', async () => {
+            const result = await provider.verify('unknown');
+            expect(result.success).toBe(false);
+            expect(result.errorCode).toBe('USER_NOT_FOUND');
+        });
+
+        it('should fail for empty token', async () => {
+            const result = await provider.verify('');
+            expect(result.success).toBe(false);
+            expect(result.errorCode).toBe('INVALID_TOKEN');
+        });
+
+        it('should return expiresAt', async () => {
+            const result = await provider.verify('1');
+            expect(result.expiresAt).toBeTypeOf('number');
+            expect(result.expiresAt).toBeGreaterThan(Date.now());
+        });
+    });
+
+    describe('with defaultUser', () => {
+        it('should return default user for empty token', async () => {
+            const providerWithDefault = createMockAuthProvider({
+                defaultUser: { id: 'default', name: 'Guest' }
+            });
+
+            const result = await providerWithDefault.verify('');
+            expect(result.success).toBe(true);
+            expect(result.user?.id).toBe('default');
+        });
+    });
+
+    describe('with autoCreate', () => {
+        it('should auto create user for unknown token', async () => {
+            const autoProvider = createMockAuthProvider({
+                autoCreate: true
+            });
+
+            const result = await autoProvider.verify('new-user-123');
+            expect(result.success).toBe(true);
+            expect(result.user?.id).toBe('new-user-123');
+            expect(result.user?.name).toBe('User_new-user-123');
+            expect(result.user?.roles).toEqual(['guest']);
+        });
+
+        it('should persist auto-created users', async () => {
+            const autoProvider = createMockAuthProvider({
+                autoCreate: true
+            });
+
+            await autoProvider.verify('auto-1');
+            const user = autoProvider.getUser('auto-1');
+            expect(user).toBeDefined();
+            expect(user?.id).toBe('auto-1');
+        });
+    });
+
+    describe('with validateToken', () => {
+        it('should validate token format', async () => {
+            const validatingProvider = createMockAuthProvider({
+                users: testUsers,
+                validateToken: (token) => token.length >= 1 && !token.includes('invalid')
+            });
+
+            const validResult = await validatingProvider.verify('1');
+            expect(validResult.success).toBe(true);
+
+            const invalidResult = await validatingProvider.verify('invalid-token');
+            expect(invalidResult.success).toBe(false);
+            expect(invalidResult.errorCode).toBe('INVALID_TOKEN');
+        });
+    });
+
+    describe('with delay', () => {
+        it('should add artificial delay', async () => {
+            const delayProvider = createMockAuthProvider({
+                users: testUsers,
+                delay: 50
+            });
+
+            const start = Date.now();
+            await delayProvider.verify('1');
+            const elapsed = Date.now() - start;
+
+            expect(elapsed).toBeGreaterThanOrEqual(45);
+        });
+    });
+
+    describe('refresh', () => {
+        it('should refresh token (returns same result as verify)', async () => {
+            const result = await provider.refresh('1');
+            expect(result.success).toBe(true);
+            expect(result.user?.id).toBe('1');
+        });
+    });
+
+    describe('revoke', () => {
+        it('should revoke token', async () => {
+            const result1 = await provider.verify('1');
+            expect(result1.success).toBe(true);
+
+            const revoked = await provider.revoke('1');
+            expect(revoked).toBe(true);
+
+            const result2 = await provider.verify('1');
+            expect(result2.success).toBe(false);
+            expect(result2.errorCode).toBe('INVALID_TOKEN');
+        });
+    });
+
+    describe('user management', () => {
+        it('should add user', () => {
+            provider.addUser({ id: '4', name: 'Dave', roles: ['tester'] });
+            const user = provider.getUser('4');
+            expect(user?.name).toBe('Dave');
+        });
+
+        it('should remove user', () => {
+            const removed = provider.removeUser('1');
+            expect(removed).toBe(true);
+
+            const user = provider.getUser('1');
+            expect(user).toBeUndefined();
+        });
+
+        it('should return false when removing non-existent user', () => {
+            const removed = provider.removeUser('non-existent');
+            expect(removed).toBe(false);
+        });
+
+        it('should get all users', () => {
+            const users = provider.getUsers();
+            expect(users).toHaveLength(3);
+            expect(users.map(u => u.id)).toContain('1');
+            expect(users.map(u => u.id)).toContain('2');
+            expect(users.map(u => u.id)).toContain('3');
+        });
+    });
+
+    describe('clear', () => {
+        it('should reset to initial state', async () => {
+            provider.addUser({ id: '4', name: 'Dave' });
+            await provider.revoke('1');
+
+            provider.clear();
+
+            const users = provider.getUsers();
+            expect(users).toHaveLength(3);
+
+            const result = await provider.verify('1');
+            expect(result.success).toBe(true);
+        });
+    });
+
+    describe('generateToken', () => {
+        it('should return user id as token', () => {
+            const token = provider.generateToken('user-123');
+            expect(token).toBe('user-123');
+        });
+    });
+});
+
+describe('createMockAuthProvider', () => {
+    it('should create provider with empty config', () => {
+        const provider = createMockAuthProvider();
+        expect(provider.name).toBe('mock');
+    });
+
+    it('should create provider with custom users', () => {
+        const provider = createMockAuthProvider({
+            users: [{ id: 'test', name: 'Test User' }]
+        });
+
+        const user = provider.getUser('test');
+        expect(user?.name).toBe('Test User');
+    });
+});

packages/framework/server/src/auth/__tests__/context.test.ts

@@ -0,0 +1,242 @@
+import { describe, it, expect, beforeEach } from 'vitest';
+import { AuthContext, createGuestContext, createAuthContext, defaultUserExtractor } from '../context';
+import type { AuthResult } from '../types';
+
+describe('AuthContext', () => {
+    let context: AuthContext<{ id: string; name: string; roles: string[] }>;
+
+    beforeEach(() => {
+        context = new AuthContext();
+    });
+
+    describe('initial state', () => {
+        it('should not be authenticated initially', () => {
+            expect(context.isAuthenticated).toBe(false);
+        });
+
+        it('should have null user initially', () => {
+            expect(context.user).toBeNull();
+        });
+
+        it('should have null userId initially', () => {
+            expect(context.userId).toBeNull();
+        });
+
+        it('should have empty roles initially', () => {
+            expect(context.roles).toEqual([]);
+        });
+
+        it('should have null authenticatedAt initially', () => {
+            expect(context.authenticatedAt).toBeNull();
+        });
+
+        it('should have null expiresAt initially', () => {
+            expect(context.expiresAt).toBeNull();
+        });
+    });
+
+    describe('setAuthenticated', () => {
+        it('should set authenticated state on success', () => {
+            const result: AuthResult<{ id: string; name: string; roles: string[] }> = {
+                success: true,
+                user: { id: '123', name: 'Alice', roles: ['player'] }
+            };
+
+            context.setAuthenticated(result);
+
+            expect(context.isAuthenticated).toBe(true);
+            expect(context.user).toEqual({ id: '123', name: 'Alice', roles: ['player'] });
+            expect(context.userId).toBe('123');
+            expect(context.roles).toEqual(['player']);
+            expect(context.authenticatedAt).toBeTypeOf('number');
+        });
+
+        it('should set expiresAt when provided', () => {
+            const expiresAt = Date.now() + 3600000;
+            const result: AuthResult<{ id: string; name: string; roles: string[] }> = {
+                success: true,
+                user: { id: '123', name: 'Alice', roles: [] },
+                expiresAt
+            };
+
+            context.setAuthenticated(result);
+
+            expect(context.expiresAt).toBe(expiresAt);
+        });
+
+        it('should clear state on failed result', () => {
+            context.setAuthenticated({
+                success: true,
+                user: { id: '123', name: 'Alice', roles: ['player'] }
+            });
+
+            context.setAuthenticated({
+                success: false,
+                error: 'Token expired'
+            });
+
+            expect(context.isAuthenticated).toBe(false);
+            expect(context.user).toBeNull();
+        });
+
+        it('should clear state when success but no user', () => {
+            context.setAuthenticated({
+                success: true
+            });
+
+            expect(context.isAuthenticated).toBe(false);
+        });
+    });
+
+    describe('isAuthenticated with expiry', () => {
+        it('should return false when token is expired', () => {
+            context.setAuthenticated({
+                success: true,
+                user: { id: '123', name: 'Alice', roles: [] },
+                expiresAt: Date.now() - 1000
+            });
+
+            expect(context.isAuthenticated).toBe(false);
+        });
+
+        it('should return true when token is not expired', () => {
+            context.setAuthenticated({
+                success: true,
+                user: { id: '123', name: 'Alice', roles: [] },
+                expiresAt: Date.now() + 3600000
+            });
+
+            expect(context.isAuthenticated).toBe(true);
+        });
+    });
+
+    describe('role checking', () => {
+        beforeEach(() => {
+            context.setAuthenticated({
+                success: true,
+                user: { id: '123', name: 'Alice', roles: ['player', 'premium'] }
+            });
+        });
+
+        it('hasRole should return true for existing role', () => {
+            expect(context.hasRole('player')).toBe(true);
+            expect(context.hasRole('premium')).toBe(true);
+        });
+
+        it('hasRole should return false for non-existing role', () => {
+            expect(context.hasRole('admin')).toBe(false);
+        });
+
+        it('hasAnyRole should return true if any role matches', () => {
+            expect(context.hasAnyRole(['admin', 'player'])).toBe(true);
+            expect(context.hasAnyRole(['guest', 'premium'])).toBe(true);
+        });
+
+        it('hasAnyRole should return false if no role matches', () => {
+            expect(context.hasAnyRole(['admin', 'moderator'])).toBe(false);
+        });
+
+        it('hasAllRoles should return true if all roles match', () => {
+            expect(context.hasAllRoles(['player', 'premium'])).toBe(true);
+        });
+
+        it('hasAllRoles should return false if any role is missing', () => {
+            expect(context.hasAllRoles(['player', 'admin'])).toBe(false);
+        });
+    });
+
+    describe('clear', () => {
+        it('should reset all state', () => {
+            context.setAuthenticated({
+                success: true,
+                user: { id: '123', name: 'Alice', roles: ['player'] },
+                expiresAt: Date.now() + 3600000
+            });
+
+            context.clear();
+
+            expect(context.isAuthenticated).toBe(false);
+            expect(context.user).toBeNull();
+            expect(context.userId).toBeNull();
+            expect(context.roles).toEqual([]);
+            expect(context.authenticatedAt).toBeNull();
+            expect(context.expiresAt).toBeNull();
+        });
+    });
+});
+
+describe('defaultUserExtractor', () => {
+    describe('getId', () => {
+        it('should extract id from user object', () => {
+            expect(defaultUserExtractor.getId({ id: '123' })).toBe('123');
+        });
+
+        it('should extract numeric id as string', () => {
+            expect(defaultUserExtractor.getId({ id: 456 })).toBe('456');
+        });
+
+        it('should extract userId', () => {
+            expect(defaultUserExtractor.getId({ userId: 'abc' })).toBe('abc');
+        });
+
+        it('should extract sub (JWT standard)', () => {
+            expect(defaultUserExtractor.getId({ sub: 'jwt-sub' })).toBe('jwt-sub');
+        });
+
+        it('should return empty string for invalid user', () => {
+            expect(defaultUserExtractor.getId(null)).toBe('');
+            expect(defaultUserExtractor.getId(undefined)).toBe('');
+            expect(defaultUserExtractor.getId({})).toBe('');
+        });
+    });
+
+    describe('getRoles', () => {
+        it('should extract roles array', () => {
+            expect(defaultUserExtractor.getRoles({ roles: ['a', 'b'] })).toEqual(['a', 'b']);
+        });
+
+        it('should extract single role', () => {
+            expect(defaultUserExtractor.getRoles({ role: 'admin' })).toEqual(['admin']);
+        });
+
+        it('should filter non-string roles', () => {
+            expect(defaultUserExtractor.getRoles({ roles: ['a', 123, 'b'] })).toEqual(['a', 'b']);
+        });
+
+        it('should return empty array for invalid user', () => {
+            expect(defaultUserExtractor.getRoles(null)).toEqual([]);
+            expect(defaultUserExtractor.getRoles({})).toEqual([]);
+        });
+    });
+});
+
+describe('createGuestContext', () => {
+    it('should create unauthenticated context', () => {
+        const guest = createGuestContext();
+        expect(guest.isAuthenticated).toBe(false);
+        expect(guest.user).toBeNull();
+    });
+});
+
+describe('createAuthContext', () => {
+    it('should create authenticated context from result', () => {
+        const result: AuthResult<{ id: string }> = {
+            success: true,
+            user: { id: '123' }
+        };
+
+        const ctx = createAuthContext(result);
+        expect(ctx.isAuthenticated).toBe(true);
+        expect(ctx.userId).toBe('123');
+    });
+
+    it('should create unauthenticated context from failed result', () => {
+        const result: AuthResult<{ id: string }> = {
+            success: false,
+            error: 'Failed'
+        };
+
+        const ctx = createAuthContext(result);
+        expect(ctx.isAuthenticated).toBe(false);
+    });
+});

packages/framework/server/src/auth/__tests__/decorators.test.ts

@@ -0,0 +1,165 @@
+import { describe, it, expect, beforeEach } from 'vitest';
+import { requireAuth, AUTH_METADATA_KEY, getAuthMetadata, type AuthMetadata } from '../decorators/requireAuth';
+import { requireRole } from '../decorators/requireRole';
+
+describe('requireAuth decorator', () => {
+    class TestClass {
+        @requireAuth()
+        basicMethod() {
+            return 'basic';
+        }
+
+        @requireAuth({ allowGuest: true })
+        guestAllowedMethod() {
+            return 'guest';
+        }
+
+        @requireAuth({ errorMessage: 'Custom error' })
+        customErrorMethod() {
+            return 'custom';
+        }
+
+        undecorated() {
+            return 'undecorated';
+        }
+    }
+
+    let instance: TestClass;
+
+    beforeEach(() => {
+        instance = new TestClass();
+    });
+
+    describe('metadata storage', () => {
+        it('should store auth metadata on target', () => {
+            const metadata = getAuthMetadata(TestClass.prototype, 'basicMethod');
+            expect(metadata).toBeDefined();
+            expect(metadata?.requireAuth).toBe(true);
+        });
+
+        it('should store options in metadata', () => {
+            const metadata = getAuthMetadata(TestClass.prototype, 'guestAllowedMethod');
+            expect(metadata?.options?.allowGuest).toBe(true);
+        });
+
+        it('should store custom error message', () => {
+            const metadata = getAuthMetadata(TestClass.prototype, 'customErrorMethod');
+            expect(metadata?.options?.errorMessage).toBe('Custom error');
+        });
+
+        it('should return undefined for undecorated methods', () => {
+            const metadata = getAuthMetadata(TestClass.prototype, 'undecorated');
+            expect(metadata).toBeUndefined();
+        });
+
+        it('should return undefined for non-existent methods', () => {
+            const metadata = getAuthMetadata(TestClass.prototype, 'nonExistent');
+            expect(metadata).toBeUndefined();
+        });
+    });
+
+    describe('method behavior', () => {
+        it('should not alter method behavior', () => {
+            expect(instance.basicMethod()).toBe('basic');
+            expect(instance.guestAllowedMethod()).toBe('guest');
+            expect(instance.customErrorMethod()).toBe('custom');
+        });
+    });
+
+    describe('metadata key', () => {
+        it('should use symbol for metadata storage', () => {
+            expect(typeof AUTH_METADATA_KEY).toBe('symbol');
+        });
+
+        it('should store metadata in a Map', () => {
+            const metadataMap = (TestClass.prototype as any)[AUTH_METADATA_KEY];
+            expect(metadataMap).toBeInstanceOf(Map);
+        });
+    });
+});
+
+describe('requireRole decorator', () => {
+    class RoleTestClass {
+        @requireRole('admin')
+        adminOnly() {
+            return 'admin';
+        }
+
+        @requireRole(['moderator', 'admin'])
+        modOrAdmin() {
+            return 'mod';
+        }
+
+        @requireRole(['verified', 'premium'], { mode: 'all' })
+        verifiedPremium() {
+            return 'vip';
+        }
+
+        @requireRole('player', { mode: 'any' })
+        playerExplicit() {
+            return 'player';
+        }
+    }
+
+    describe('single role', () => {
+        it('should store single role as array', () => {
+            const metadata = getAuthMetadata(RoleTestClass.prototype, 'adminOnly');
+            expect(metadata?.roles).toEqual(['admin']);
+        });
+
+        it('should set requireAuth to true', () => {
+            const metadata = getAuthMetadata(RoleTestClass.prototype, 'adminOnly');
+            expect(metadata?.requireAuth).toBe(true);
+        });
+
+        it('should default to any mode', () => {
+            const metadata = getAuthMetadata(RoleTestClass.prototype, 'adminOnly');
+            expect(metadata?.roleMode).toBe('any');
+        });
+    });
+
+    describe('multiple roles', () => {
+        it('should store multiple roles', () => {
+            const metadata = getAuthMetadata(RoleTestClass.prototype, 'modOrAdmin');
+            expect(metadata?.roles).toEqual(['moderator', 'admin']);
+        });
+    });
+
+    describe('role mode', () => {
+        it('should support all mode', () => {
+            const metadata = getAuthMetadata(RoleTestClass.prototype, 'verifiedPremium');
+            expect(metadata?.roleMode).toBe('all');
+            expect(metadata?.roles).toEqual(['verified', 'premium']);
+        });
+
+        it('should support explicit any mode', () => {
+            const metadata = getAuthMetadata(RoleTestClass.prototype, 'playerExplicit');
+            expect(metadata?.roleMode).toBe('any');
+        });
+    });
+
+    describe('method behavior', () => {
+        it('should not alter method behavior', () => {
+            const instance = new RoleTestClass();
+            expect(instance.adminOnly()).toBe('admin');
+            expect(instance.modOrAdmin()).toBe('mod');
+            expect(instance.verifiedPremium()).toBe('vip');
+        });
+    });
+});
+
+describe('combined decorators', () => {
+    class CombinedTestClass {
+        @requireAuth({ allowGuest: false })
+        @requireRole('admin')
+        combinedMethod() {
+            return 'combined';
+        }
+    }
+
+    it('should merge metadata from both decorators', () => {
+        const metadata = getAuthMetadata(CombinedTestClass.prototype, 'combinedMethod');
+        expect(metadata?.requireAuth).toBe(true);
+        expect(metadata?.roles).toEqual(['admin']);
+    });
+});

packages/framework/server/src/auth/__tests__/providers.test.ts

@@ -0,0 +1,330 @@
+import { describe, it, expect, beforeEach, vi } from 'vitest';
+import { JwtAuthProvider, createJwtAuthProvider } from '../providers/JwtAuthProvider';
+import { SessionAuthProvider, createSessionAuthProvider, type ISessionStorage } from '../providers/SessionAuthProvider';
+
+describe('JwtAuthProvider', () => {
+    const secret = 'test-secret-key-for-testing';
+    let provider: JwtAuthProvider<{ id: string; name: string; roles: string[] }>;
+
+    beforeEach(() => {
+        provider = createJwtAuthProvider({
+            secret,
+            expiresIn: 3600
+        });
+    });
+
+    describe('sign and verify', () => {
+        it('should sign and verify a token', async () => {
+            const payload = { sub: '123', name: 'Alice', roles: ['player'] };
+            const token = provider.sign(payload);
+
+            expect(token).toBeTypeOf('string');
+            expect(token.split('.')).toHaveLength(3);
+
+            const result = await provider.verify(token);
+            expect(result.success).toBe(true);
+            expect(result.user).toBeDefined();
+        });
+
+        it('should extract user from payload', async () => {
+            const payload = { sub: '123', name: 'Alice' };
+            const token = provider.sign(payload);
+
+            const result = await provider.verify(token);
+            expect(result.success).toBe(true);
+            expect((result.user as any).sub).toBe('123');
+            expect((result.user as any).name).toBe('Alice');
+        });
+
+        it('should return expiration time', async () => {
+            const token = provider.sign({ sub: '123' });
+            const result = await provider.verify(token);
+
+            expect(result.expiresAt).toBeTypeOf('number');
+            expect(result.expiresAt).toBeGreaterThan(Date.now());
+        });
+    });
+
+    describe('verify errors', () => {
+        it('should fail for empty token', async () => {
+            const result = await provider.verify('');
+            expect(result.success).toBe(false);
+            expect(result.errorCode).toBe('INVALID_TOKEN');
+        });
+
+        it('should fail for invalid token', async () => {
+            const result = await provider.verify('invalid.token.here');
+            expect(result.success).toBe(false);
+            expect(result.errorCode).toBe('INVALID_TOKEN');
+        });
+
+        it('should fail for expired token', async () => {
+            const shortLivedProvider = createJwtAuthProvider({
+                secret,
+                expiresIn: -1
+            });
+
+            const token = shortLivedProvider.sign({ sub: '123' });
+            const result = await shortLivedProvider.verify(token);
+
+            expect(result.success).toBe(false);
+            expect(result.errorCode).toBe('EXPIRED_TOKEN');
+        });
+
+        it('should fail for wrong secret', async () => {
+            const token = provider.sign({ sub: '123' });
+
+            const wrongSecretProvider = createJwtAuthProvider({
+                secret: 'wrong-secret'
+            });
+
+            const result = await wrongSecretProvider.verify(token);
+            expect(result.success).toBe(false);
+            expect(result.errorCode).toBe('INVALID_TOKEN');
+        });
+    });
+
+    describe('with getUser callback', () => {
+        it('should use getUser to transform payload', async () => {
+            const customProvider = createJwtAuthProvider({
+                secret,
+                getUser: async (payload) => ({
+                    id: payload.sub as string,
+                    name: payload.name as string,
+                    roles: (payload.roles as string[]) || []
+                })
+            });
+
+            const token = customProvider.sign({ sub: '123', name: 'Bob', roles: ['admin'] });
+            const result = await customProvider.verify(token);
+
+            expect(result.success).toBe(true);
+            expect(result.user).toEqual({
+                id: '123',
+                name: 'Bob',
+                roles: ['admin']
+            });
+        });
+
+        it('should fail when getUser returns null', async () => {
+            const customProvider = createJwtAuthProvider({
+                secret,
+                getUser: async () => null
+            });
+
+            const token = customProvider.sign({ sub: '123' });
+            const result = await customProvider.verify(token);
+
+            expect(result.success).toBe(false);
+            expect(result.errorCode).toBe('USER_NOT_FOUND');
+        });
+    });
+
+    describe('refresh', () => {
+        it('should refresh a valid token', async () => {
+            const token = provider.sign({ sub: '123', name: 'Alice' });
+
+            // Wait a bit so iat changes
+            await new Promise(resolve => setTimeout(resolve, 1100));
+
+            const result = await provider.refresh(token);
+
+            expect(result.success).toBe(true);
+            expect(result.token).toBeDefined();
+            expect(result.token).not.toBe(token);
+        });
+
+        it('should return new expiration time', async () => {
+            const token = provider.sign({ sub: '123' });
+            const result = await provider.refresh(token);
+
+            expect(result.success).toBe(true);
+            expect(result.expiresAt).toBeTypeOf('number');
+            expect(result.expiresAt).toBeGreaterThan(Date.now());
+        });
+
+        it('should fail to refresh invalid token', async () => {
+            const result = await provider.refresh('invalid');
+
+            expect(result.success).toBe(false);
+        });
+    });
+
+    describe('decode', () => {
+        it('should decode token without verification', () => {
+            const token = provider.sign({ sub: '123', name: 'Alice' });
+            const payload = provider.decode(token);
+
+            expect(payload).toBeDefined();
+            expect(payload?.sub).toBe('123');
+            expect(payload?.name).toBe('Alice');
+        });
+
+        it('should return null for invalid token', () => {
+            const payload = provider.decode('not-a-token');
+            expect(payload).toBeNull();
+        });
+    });
+});
+
+describe('SessionAuthProvider', () => {
+    let storage: ISessionStorage;
+    let provider: SessionAuthProvider<{ id: string; name: string }>;
+    let storageData: Map<string, unknown>;
+
+    beforeEach(() => {
+        storageData = new Map();
+
+        storage = {
+            async get<T>(key: string): Promise<T | null> {
+                return (storageData.get(key) as T) ?? null;
+            },
+            async set<T>(key: string, value: T): Promise<void> {
+                storageData.set(key, value);
+            },
+            async delete(key: string): Promise<boolean> {
+                return storageData.delete(key);
+            }
+        };
+
+        provider = createSessionAuthProvider({
+            storage,
+            sessionTTL: 3600000
+        });
+    });
+
+    describe('createSession and verify', () => {
+        it('should create and verify a session', async () => {
+            const user = { id: '123', name: 'Alice' };
+            const sessionId = await provider.createSession(user);
+
+            expect(sessionId).toBeTypeOf('string');
+            expect(sessionId.length).toBeGreaterThan(10);
+
+            const result = await provider.verify(sessionId);
+
+            expect(result.success).toBe(true);
+            expect(result.user).toEqual(user);
+        });
+
+        it('should store session data', async () => {
+            const user = { id: '123', name: 'Alice' };
+            const sessionId = await provider.createSession(user, { customField: 'value' });
+
+            const session = await provider.getSession(sessionId);
+
+            expect(session).toBeDefined();
+            expect(session?.user).toEqual(user);
+            expect(session?.data?.customField).toBe('value');
+            expect(session?.createdAt).toBeTypeOf('number');
+            expect(session?.lastActiveAt).toBeTypeOf('number');
+        });
+    });
+
+    describe('verify errors', () => {
+        it('should fail for empty session id', async () => {
+            const result = await provider.verify('');
+            expect(result.success).toBe(false);
+            expect(result.errorCode).toBe('INVALID_TOKEN');
+        });
+
+        it('should fail for non-existent session', async () => {
+            const result = await provider.verify('non-existent-session');
+            expect(result.success).toBe(false);
+            expect(result.errorCode).toBe('EXPIRED_TOKEN');
+        });
+    });
+
+    describe('with validateUser', () => {
+        it('should validate user on verify', async () => {
+            const validatingProvider = createSessionAuthProvider({
+                storage,
+                validateUser: (user) => user.id !== 'banned'
+            });
+
+            const sessionId = await validatingProvider.createSession({ id: 'banned', name: 'Bad User' });
+            const result = await validatingProvider.verify(sessionId);
+
+            expect(result.success).toBe(false);
+            expect(result.errorCode).toBe('ACCOUNT_DISABLED');
+        });
+
+        it('should pass validation for valid user', async () => {
+            const validatingProvider = createSessionAuthProvider({
+                storage,
+                validateUser: (user) => user.id !== 'banned'
+            });
+
+            const sessionId = await validatingProvider.createSession({ id: '123', name: 'Good User' });
+            const result = await validatingProvider.verify(sessionId);
+
+            expect(result.success).toBe(true);
+        });
+    });
+
+    describe('refresh', () => {
+        it('should refresh session and update lastActiveAt', async () => {
+            const sessionId = await provider.createSession({ id: '123', name: 'Alice' });
+
+            const session1 = await provider.getSession(sessionId);
+            const lastActive1 = session1?.lastActiveAt;
+
+            await new Promise(resolve => setTimeout(resolve, 10));
+
+            const result = await provider.refresh(sessionId);
+            expect(result.success).toBe(true);
+
+            const session2 = await provider.getSession(sessionId);
+            expect(session2?.lastActiveAt).toBeGreaterThanOrEqual(lastActive1!);
+        });
+    });
+
+    describe('revoke', () => {
+        it('should revoke session', async () => {
+            const sessionId = await provider.createSession({ id: '123', name: 'Alice' });
+
+            const revoked = await provider.revoke(sessionId);
+            expect(revoked).toBe(true);
+
+            const result = await provider.verify(sessionId);
+            expect(result.success).toBe(false);
+        });
+    });
+
+    describe('updateSession', () => {
+        it('should update session data', async () => {
+            const sessionId = await provider.createSession({ id: '123', name: 'Alice' });
+
+            const updated = await provider.updateSession(sessionId, { newField: 'newValue' });
+            expect(updated).toBe(true);
+
+            const session = await provider.getSession(sessionId);
+            expect(session?.data?.newField).toBe('newValue');
+        });
+
+        it('should return false for non-existent session', async () => {
+            const updated = await provider.updateSession('non-existent', { field: 'value' });
+            expect(updated).toBe(false);
+        });
+    });
+});
+
+describe('createJwtAuthProvider', () => {
+    it('should create provider with default options', () => {
+        const provider = createJwtAuthProvider({ secret: 'test' });
+        expect(provider.name).toBe('jwt');
+    });
+});
+
+describe('createSessionAuthProvider', () => {
+    it('should create provider with default options', () => {
+        const storage: ISessionStorage = {
+            get: async () => null,
+            set: async () => {},
+            delete: async () => true
+        };
+
+        const provider = createSessionAuthProvider({ storage });
+        expect(provider.name).toBe('session');
+    });
+});

packages/framework/server/src/auth/context.ts

@@ -0,0 +1,202 @@
+/**
+ * @zh 认证上下文实现
+ * @en Authentication context implementation
+ */
+
+import type { IAuthContext, AuthResult } from './types.js';
+
+/**
+ * @zh 用户信息提取器
+ * @en User info extractor
+ */
+export interface UserInfoExtractor<TUser> {
+    /**
+     * @zh 提取用户 ID
+     * @en Extract user ID
+     */
+    getId(user: TUser): string;
+
+    /**
+     * @zh 提取用户角色
+     * @en Extract user roles
+     */
+    getRoles(user: TUser): string[];
+}
+
+/**
+ * @zh 默认用户信息提取器
+ * @en Default user info extractor
+ */
+export const defaultUserExtractor: UserInfoExtractor<unknown> = {
+    getId(user: unknown): string {
+        if (user && typeof user === 'object') {
+            const u = user as Record<string, unknown>;
+            if (typeof u.id === 'string') return u.id;
+            if (typeof u.id === 'number') return String(u.id);
+            if (typeof u.userId === 'string') return u.userId;
+            if (typeof u.userId === 'number') return String(u.userId);
+            if (typeof u.sub === 'string') return u.sub;
+        }
+        return '';
+    },
+
+    getRoles(user: unknown): string[] {
+        if (user && typeof user === 'object') {
+            const u = user as Record<string, unknown>;
+            if (Array.isArray(u.roles)) {
+                return u.roles.filter((r): r is string => typeof r === 'string');
+            }
+            if (typeof u.role === 'string') {
+                return [u.role];
+            }
+        }
+        return [];
+    }
+};
+
+/**
+ * @zh 认证上下文
+ * @en Authentication context
+ *
+ * @zh 存储连接的认证状态
+ * @en Stores authentication state for a connection
+ */
+export class AuthContext<TUser = unknown> implements IAuthContext<TUser> {
+    private _isAuthenticated: boolean = false;
+    private _user: TUser | null = null;
+    private _userId: string | null = null;
+    private _roles: string[] = [];
+    private _authenticatedAt: number | null = null;
+    private _expiresAt: number | null = null;
+    private _extractor: UserInfoExtractor<TUser>;
+
+    constructor(extractor?: UserInfoExtractor<TUser>) {
+        this._extractor = (extractor ?? defaultUserExtractor) as UserInfoExtractor<TUser>;
+    }
+
+    /**
+     * @zh 是否已认证
+     * @en Whether authenticated
+     */
+    get isAuthenticated(): boolean {
+        if (this._expiresAt && Date.now() > this._expiresAt) {
+            return false;
+        }
+        return this._isAuthenticated;
+    }
+
+    /**
+     * @zh 用户信息
+     * @en User information
+     */
+    get user(): TUser | null {
+        return this._user;
+    }
+
+    /**
+     * @zh 用户 ID
+     * @en User ID
+     */
+    get userId(): string | null {
+        return this._userId;
+    }
+
+    /**
+     * @zh 用户角色
+     * @en User roles
+     */
+    get roles(): ReadonlyArray<string> {
+        return this._roles;
+    }
+
+    /**
+     * @zh 认证时间
+     * @en Authentication timestamp
+     */
+    get authenticatedAt(): number | null {
+        return this._authenticatedAt;
+    }
+
+    /**
+     * @zh 令牌过期时间
+     * @en Token expiration time
+     */
+    get expiresAt(): number | null {
+        return this._expiresAt;
+    }
+
+    /**
+     * @zh 检查是否有指定角色
+     * @en Check if has specified role
+     */
+    hasRole(role: string): boolean {
+        return this._roles.includes(role);
+    }
+
+    /**
+     * @zh 检查是否有任一指定角色
+     * @en Check if has any of specified roles
+     */
+    hasAnyRole(roles: string[]): boolean {
+        return roles.some(role => this._roles.includes(role));
+    }
+
+    /**
+     * @zh 检查是否有所有指定角色
+     * @en Check if has all specified roles
+     */
+    hasAllRoles(roles: string[]): boolean {
+        return roles.every(role => this._roles.includes(role));
+    }
+
+    /**
+     * @zh 设置认证结果
+     * @en Set authentication result
+     */
+    setAuthenticated(result: AuthResult<TUser>): void {
+        if (result.success && result.user) {
+            this._isAuthenticated = true;
+            this._user = result.user;
+            this._userId = this._extractor.getId(result.user);
+            this._roles = this._extractor.getRoles(result.user);
+            this._authenticatedAt = Date.now();
+            this._expiresAt = result.expiresAt ?? null;
+        } else {
+            this.clear();
+        }
+    }
+
+    /**
+     * @zh 清除认证状态
+     * @en Clear authentication state
+     */
+    clear(): void {
+        this._isAuthenticated = false;
+        this._user = null;
+        this._userId = null;
+        this._roles = [];
+        this._authenticatedAt = null;
+        this._expiresAt = null;
+    }
+}
+
+/**
+ * @zh 创建访客认证上下文
+ * @en Create guest auth context
+ */
+export function createGuestContext<TUser = unknown>(): IAuthContext<TUser> {
+    return new AuthContext<TUser>();
+}
+
+/**
+ * @zh 从认证结果创建认证上下文
+ * @en Create auth context from auth result
+ */
+export function createAuthContext<TUser = unknown>(
+    result: AuthResult<TUser>,
+    extractor?: UserInfoExtractor<TUser>
+): AuthContext<TUser> {
+    const context = new AuthContext<TUser>(extractor);
+    context.setAuthenticated(result);
+    return context;
+}

packages/framework/server/src/auth/decorators/index.ts

@@ -0,0 +1,13 @@
+/**
+ * @zh 认证装饰器
+ * @en Authentication decorators
+ */
+
+export {
+    requireAuth,
+    getAuthMetadata,
+    AUTH_METADATA_KEY,
+    type AuthMetadata
+} from './requireAuth.js';
+
+export { requireRole } from './requireRole.js';

packages/framework/server/src/auth/decorators/requireAuth.ts

@@ -0,0 +1,86 @@
+/**
+ * @zh requireAuth 装饰器
+ * @en requireAuth decorator
+ */
+
+import type { RequireAuthOptions } from '../types.js';
+
+/**
+ * @zh 认证元数据键
+ * @en Auth metadata key
+ */
+export const AUTH_METADATA_KEY = Symbol('authMetadata');
+
+/**
+ * @zh 认证元数据
+ * @en Auth metadata
+ */
+export interface AuthMetadata {
+    requireAuth: boolean;
+    options?: RequireAuthOptions;
+    roles?: string[];
+    roleMode?: 'any' | 'all';
+}
+
+/**
+ * @zh 获取方法的认证元数据
+ * @en Get auth metadata for method
+ */
+export function getAuthMetadata(target: any, propertyKey: string): AuthMetadata | undefined {
+    const metadata = target[AUTH_METADATA_KEY] as Map<string, AuthMetadata> | undefined;
+    return metadata?.get(propertyKey);
+}
+
+/**
+ * @zh 设置方法的认证元数据
+ * @en Set auth metadata for method
+ */
+function setAuthMetadata(target: any, propertyKey: string, metadata: AuthMetadata): void {
+    if (!target[AUTH_METADATA_KEY]) {
+        target[AUTH_METADATA_KEY] = new Map<string, AuthMetadata>();
+    }
+    (target[AUTH_METADATA_KEY] as Map<string, AuthMetadata>).set(propertyKey, metadata);
+}
+
+/**
+ * @zh 要求认证装饰器
+ * @en Require authentication decorator
+ *
+ * @zh 标记方法需要认证才能访问，用于消息处理器
+ * @en Marks method as requiring authentication, used for message handlers
+ *
+ * @example
+ * ```typescript
+ * class GameRoom extends withRoomAuth(Room) {
+ *     @requireAuth()
+ *     @onMessage('Trade')
+ *     handleTrade(data: TradeData, player: AuthPlayer) {
+ *         // Only authenticated players can trade
+ *     }
+ *
+ *     @requireAuth({ allowGuest: true })
+ *     @onMessage('Chat')
+ *     handleChat(data: ChatData, player: AuthPlayer) {
+ *         // Guests can also chat
+ *     }
+ * }
+ * ```
+ */
+export function requireAuth(options?: RequireAuthOptions): MethodDecorator {
+    return function (
+        target: any,
+        propertyKey: string | symbol,
+        descriptor: PropertyDescriptor
+    ) {
+        const key = String(propertyKey);
+        const existing = getAuthMetadata(target, key);
+
+        setAuthMetadata(target, key, {
+            ...existing,
+            requireAuth: true,
+            options
+        });
+
+        return descriptor;
+    };
+}

packages/framework/server/src/auth/decorators/requireRole.ts

@@ -0,0 +1,73 @@
+/**
+ * @zh requireRole 装饰器
+ * @en requireRole decorator
+ */
+
+import type { RequireRoleOptions } from '../types.js';
+import { AUTH_METADATA_KEY, getAuthMetadata, type AuthMetadata } from './requireAuth.js';
+
+/**
+ * @zh 设置方法的认证元数据
+ * @en Set auth metadata for method
+ */
+function setAuthMetadata(target: any, propertyKey: string, metadata: AuthMetadata): void {
+    if (!target[AUTH_METADATA_KEY]) {
+        target[AUTH_METADATA_KEY] = new Map<string, AuthMetadata>();
+    }
+    (target[AUTH_METADATA_KEY] as Map<string, AuthMetadata>).set(propertyKey, metadata);
+}
+
+/**
+ * @zh 要求角色装饰器
+ * @en Require role decorator
+ *
+ * @zh 标记方法需要特定角色才能访问
+ * @en Marks method as requiring specific role(s)
+ *
+ * @example
+ * ```typescript
+ * class AdminRoom extends withRoomAuth(Room) {
+ *     @requireRole('admin')
+ *     @onMessage('Ban')
+ *     handleBan(data: BanData, player: AuthPlayer) {
+ *         // Only admins can ban
+ *     }
+ *
+ *     @requireRole(['moderator', 'admin'])
+ *     @onMessage('Mute')
+ *     handleMute(data: MuteData, player: AuthPlayer) {
+ *         // Moderators or admins can mute
+ *     }
+ *
+ *     @requireRole(['verified', 'premium'], { mode: 'all' })
+ *     @onMessage('SpecialFeature')
+ *     handleSpecial(data: any, player: AuthPlayer) {
+ *         // Requires both verified AND premium roles
+ *     }
+ * }
+ * ```
+ */
+export function requireRole(
+    roles: string | string[],
+    options?: RequireRoleOptions
+): MethodDecorator {
+    return function (
+        target: any,
+        propertyKey: string | symbol,
+        descriptor: PropertyDescriptor
+    ) {
+        const key = String(propertyKey);
+        const existing = getAuthMetadata(target, key);
+        const roleArray = Array.isArray(roles) ? roles : [roles];
+
+        setAuthMetadata(target, key, {
+            ...existing,
+            requireAuth: true,
+            roles: roleArray,
+            roleMode: options?.mode ?? 'any',
+            options
+        });
+
+        return descriptor;
+    };
+}

packages/framework/server/src/auth/index.ts

@@ -0,0 +1,129 @@
+/**
+ * @zh 认证模块
+ * @en Authentication module
+ *
+ * @zh 为 @esengine/server 提供可插拔的认证系统
+ * @en Provides pluggable authentication system for @esengine/server
+ *
+ * @example
+ * ```typescript
+ * import { createServer, Room, onMessage } from '@esengine/server';
+ * import {
+ *     withAuth,
+ *     withRoomAuth,
+ *     createJwtAuthProvider,
+ *     requireAuth,
+ *     requireRole,
+ *     type AuthPlayer
+ * } from '@esengine/server/auth';
+ *
+ * // 1. Create auth provider
+ * const jwtProvider = createJwtAuthProvider({
+ *     secret: process.env.JWT_SECRET!,
+ *     expiresIn: 3600,
+ * });
+ *
+ * // 2. Wrap server with auth
+ * const server = withAuth(await createServer({ port: 3000 }), {
+ *     provider: jwtProvider,
+ *     extractCredentials: (req) => {
+ *         const url = new URL(req.url, 'http://localhost');
+ *         return url.searchParams.get('token');
+ *     },
+ * });
+ *
+ * // 3. Create auth-enabled room
+ * class GameRoom extends withRoomAuth<User>(Room, {
+ *     requireAuth: true,
+ *     allowedRoles: ['player'],
+ * }) {
+ *     onJoin(player: AuthPlayer<User>) {
+ *         console.log(`${player.user?.name} joined`);
+ *     }
+ *
+ *     @requireAuth()
+ *     @onMessage('Chat')
+ *     handleChat(data: { text: string }, player: AuthPlayer<User>) {
+ *         this.broadcast('Chat', { from: player.user?.name, text: data.text });
+ *     }
+ *
+ *     @requireRole('admin')
+ *     @onMessage('Kick')
+ *     handleKick(data: { playerId: string }, player: AuthPlayer<User>) {
+ *         this.kick(data.playerId);
+ *     }
+ * }
+ *
+ * server.define('game', GameRoom);
+ * await server.start();
+ * ```
+ */
+
+// Types
+export type {
+    AuthResult,
+    AuthErrorCode,
+    IAuthProvider,
+    IAuthContext,
+    AuthConnectionData,
+    AuthConnection,
+    AuthApiContext,
+    AuthMsgContext,
+    ConnectionRequest,
+    AuthServerConfig,
+    AuthGameServer,
+    AuthRoomConfig,
+    RequireAuthOptions,
+    RequireRoleOptions
+} from './types.js';
+
+// Context
+export {
+    AuthContext,
+    createGuestContext,
+    createAuthContext,
+    defaultUserExtractor,
+    type UserInfoExtractor
+} from './context.js';
+
+// Providers
+export {
+    JwtAuthProvider,
+    createJwtAuthProvider,
+    type JwtAuthConfig,
+    type JwtPayload
+} from './providers/JwtAuthProvider.js';
+
+export {
+    SessionAuthProvider,
+    createSessionAuthProvider,
+    type SessionAuthConfig,
+    type SessionData,
+    type ISessionStorage
+} from './providers/SessionAuthProvider.js';
+
+// Mixins
+export {
+    withAuth,
+    getAuthContext,
+    setAuthContext,
+    requireAuthentication,
+    requireRole as requireRoleCheck
+} from './mixin/withAuth.js';
+
+export {
+    withRoomAuth,
+    AuthRoomBase,
+    type AuthPlayer,
+    type IAuthRoom,
+    type AuthRoomClass
+} from './mixin/withRoomAuth.js';
+
+// Decorators
+export {
+    requireAuth,
+    requireRole,
+    getAuthMetadata,
+    AUTH_METADATA_KEY,
+    type AuthMetadata
+} from './decorators/index.js';

packages/framework/server/src/auth/mixin/index.ts

@@ -0,0 +1,20 @@
+/**
+ * @zh 认证 Mixin
+ * @en Authentication mixins
+ */
+
+export {
+    withAuth,
+    getAuthContext,
+    setAuthContext,
+    requireAuthentication,
+    requireRole
+} from './withAuth.js';
+
+export {
+    withRoomAuth,
+    AuthRoomBase,
+    type AuthPlayer,
+    type IAuthRoom,
+    type AuthRoomClass
+} from './withRoomAuth.js';

packages/framework/server/src/auth/mixin/withAuth.ts

@@ -0,0 +1,221 @@
+/**
+ * @zh 服务器认证 Mixin
+ * @en Server authentication mixin
+ */
+
+import type { ServerConnection, GameServer } from '../../types/index.js';
+import type {
+    IAuthProvider,
+    AuthResult,
+    AuthServerConfig,
+    AuthGameServer,
+    IAuthContext,
+    ConnectionRequest
+} from '../types.js';
+import { AuthContext } from '../context.js';
+
+/**
+ * @zh 认证数据键
+ * @en Auth data key
+ */
+const AUTH_CONTEXT_KEY = Symbol('authContext');
+
+/**
+ * @zh 获取连接的认证上下文
+ * @en Get auth context for connection
+ */
+export function getAuthContext<TUser = unknown>(conn: ServerConnection): IAuthContext<TUser> | null {
+    const data = conn.data as Record<symbol, unknown>;
+    return (data[AUTH_CONTEXT_KEY] as IAuthContext<TUser>) ?? null;
+}
+
+/**
+ * @zh 设置连接的认证上下文
+ * @en Set auth context for connection
+ */
+export function setAuthContext<TUser = unknown>(conn: ServerConnection, context: IAuthContext<TUser>): void {
+    const data = conn.data as Record<symbol, unknown>;
+    data[AUTH_CONTEXT_KEY] = context;
+}
+
+/**
+ * @zh 包装服务器添加认证功能
+ * @en Wrap server with authentication functionality
+ *
+ * @zh 使用 mixin 模式为服务器添加认证能力，不修改原始服务器
+ * @en Uses mixin pattern to add authentication to server without modifying original
+ *
+ * @example
+ * ```typescript
+ * import { createServer } from '@esengine/server';
+ * import { withAuth, createJwtAuthProvider } from '@esengine/server/auth';
+ *
+ * const jwtProvider = createJwtAuthProvider({
+ *     secret: 'your-secret-key',
+ *     expiresIn: 3600,
+ * });
+ *
+ * const server = withAuth(await createServer({ port: 3000 }), {
+ *     provider: jwtProvider,
+ *     extractCredentials: (req) => {
+ *         const url = new URL(req.url, 'http://localhost');
+ *         return url.searchParams.get('token');
+ *     },
+ *     onAuthSuccess: (conn, user) => {
+ *         console.log(`User ${user.name} authenticated`);
+ *     },
+ *     onAuthFailure: (conn, error) => {
+ *         console.log(`Auth failed: ${error.error}`);
+ *     }
+ * });
+ *
+ * await server.start();
+ * ```
+ */
+export function withAuth<TUser = unknown>(
+    server: GameServer,
+    config: AuthServerConfig<TUser>
+): AuthGameServer<TUser> {
+    const {
+        provider,
+        extractCredentials,
+        autoAuthOnConnect = true,
+        disconnectOnAuthFailure = false,
+        onAuthSuccess,
+        onAuthFailure
+    } = config;
+
+    const originalConnections = server.connections;
+    const connectionAuthMap = new WeakMap<ServerConnection, AuthContext<TUser>>();
+
+    const authServer: AuthGameServer<TUser> = {
+        ...server,
+
+        get authProvider(): IAuthProvider<TUser> {
+            return provider;
+        },
+
+        async authenticate(
+            conn: ServerConnection,
+            credentials: unknown
+        ): Promise<AuthResult<TUser>> {
+            const result = await provider.verify(credentials as never);
+
+            let authContext = connectionAuthMap.get(conn);
+            if (!authContext) {
+                authContext = new AuthContext<TUser>();
+                connectionAuthMap.set(conn, authContext);
+                setAuthContext(conn, authContext);
+            }
+
+            if (result.success) {
+                authContext.setAuthenticated(result);
+                await onAuthSuccess?.(conn, result.user!);
+            } else {
+                authContext.clear();
+                await onAuthFailure?.(conn, result);
+            }
+
+            return result;
+        },
+
+        getAuthContext(conn: ServerConnection): IAuthContext<TUser> | null {
+            return connectionAuthMap.get(conn) ?? null;
+        },
+
+        get connections(): ReadonlyArray<ServerConnection> {
+            return originalConnections;
+        }
+    };
+
+    const originalOnConnect = (server as any)._onConnect;
+    (server as any)._onConnect = async (conn: ServerConnection, req?: unknown) => {
+        const authContext = new AuthContext<TUser>();
+        connectionAuthMap.set(conn, authContext);
+        setAuthContext(conn, authContext);
+
+        if (autoAuthOnConnect && extractCredentials && req) {
+            try {
+                const connReq = req as ConnectionRequest;
+                const credentials = await extractCredentials(connReq);
+
+                if (credentials) {
+                    const result = await provider.verify(credentials as never);
+
+                    if (result.success) {
+                        authContext.setAuthenticated(result);
+                        await onAuthSuccess?.(conn, result.user!);
+                    } else {
+                        await onAuthFailure?.(conn, result);
+
+                        if (disconnectOnAuthFailure) {
+                            (conn as any).close?.();
+                            return;
+                        }
+                    }
+                }
+            } catch (error) {
+                console.error('[Auth] Error during auto-authentication:', error);
+            }
+        }
+
+        if (originalOnConnect) {
+            await originalOnConnect(conn, req);
+        }
+    };
+
+    const originalOnDisconnect = (server as any)._onDisconnect;
+    (server as any)._onDisconnect = async (conn: ServerConnection) => {
+        connectionAuthMap.delete(conn);
+
+        if (originalOnDisconnect) {
+            await originalOnDisconnect(conn);
+        }
+    };
+
+    return authServer;
+}
+
+/**
+ * @zh 创建认证中间件
+ * @en Create authentication middleware
+ *
+ * @zh 用于在 API 处理器中检查认证状态
+ * @en Used to check authentication status in API handlers
+ */
+export function requireAuthentication<TUser = unknown>(
+    conn: ServerConnection,
+    options?: { errorMessage?: string }
+): IAuthContext<TUser> {
+    const auth = getAuthContext<TUser>(conn);
+
+    if (!auth || !auth.isAuthenticated) {
+        throw new Error(options?.errorMessage ?? 'Authentication required');
+    }
+
+    return auth;
+}
+
+/**
+ * @zh 创建角色检查中间件
+ * @en Create role check middleware
+ */
+export function requireRole<TUser = unknown>(
+    conn: ServerConnection,
+    roles: string | string[],
+    options?: { mode?: 'any' | 'all'; errorMessage?: string }
+): IAuthContext<TUser> {
+    const auth = requireAuthentication<TUser>(conn);
+    const roleArray = Array.isArray(roles) ? roles : [roles];
+    const mode = options?.mode ?? 'any';
+
+    const hasRole = mode === 'any'
+        ? auth.hasAnyRole(roleArray)
+        : auth.hasAllRoles(roleArray);
+
+    if (!hasRole) {
+        throw new Error(options?.errorMessage ?? 'Insufficient permissions');
+    }
+
+    return auth;
+}

packages/framework/server/src/auth/mixin/withRoomAuth.ts

@@ -0,0 +1,317 @@
+/**
+ * @zh 房间认证 Mixin
+ * @en Room authentication mixin
+ */
+
+import type { Room, Player } from '../../room/index.js';
+import type { IAuthContext, AuthRoomConfig } from '../types.js';
+import { getAuthContext } from './withAuth.js';
+import { createGuestContext } from '../context.js';
+
+/**
+ * @zh 带认证的玩家
+ * @en Player with authentication
+ */
+export interface AuthPlayer<TUser = unknown, TData = Record<string, unknown>> extends Player<TData> {
+    /**
+     * @zh 认证上下文
+     * @en Authentication context
+     */
+    readonly auth: IAuthContext<TUser>;
+
+    /**
+     * @zh 用户信息（快捷访问）
+     * @en User info (shortcut)
+     */
+    readonly user: TUser | null;
+}
+
+/**
+ * @zh 带认证的房间接口
+ * @en Room with authentication interface
+ */
+export interface IAuthRoom<TUser = unknown> {
+    /**
+     * @zh 认证钩子（在 onJoin 之前调用）
+     * @en Auth hook (called before onJoin)
+     */
+    onAuth?(player: AuthPlayer<TUser>): boolean | Promise<boolean>;
+
+    /**
+     * @zh 获取带认证信息的玩家
+     * @en Get player with auth info
+     */
+    getAuthPlayer(id: string): AuthPlayer<TUser> | undefined;
+
+    /**
+     * @zh 获取所有带认证信息的玩家
+     * @en Get all players with auth info
+     */
+    getAuthPlayers(): AuthPlayer<TUser>[];
+
+    /**
+     * @zh 按角色获取玩家
+     * @en Get players by role
+     */
+    getPlayersByRole(role: string): AuthPlayer<TUser>[];
+
+    /**
+     * @zh 按用户 ID 获取玩家
+     * @en Get player by user ID
+     */
+    getPlayerByUserId(userId: string): AuthPlayer<TUser> | undefined;
+}
+
+/**
+ * @zh 认证房间构造器类型
+ * @en Auth room constructor type
+ */
+export type AuthRoomClass<TUser = unknown> = new (...args: any[]) => Room & IAuthRoom<TUser>;
+
+/**
+ * @zh 玩家认证上下文存储
+ * @en Player auth context storage
+ */
+const playerAuthContexts = new WeakMap<Player, IAuthContext<unknown>>();
+
+/**
+ * @zh 包装玩家对象添加认证信息
+ * @en Wrap player object with auth info
+ */
+function wrapPlayerWithAuth<TUser>(player: Player, authContext: IAuthContext<TUser>): AuthPlayer<TUser> {
+    playerAuthContexts.set(player, authContext);
+
+    Object.defineProperty(player, 'auth', {
+        get: () => playerAuthContexts.get(player) ?? createGuestContext<TUser>(),
+        enumerable: true,
+        configurable: false
+    });
+
+    Object.defineProperty(player, 'user', {
+        get: () => (playerAuthContexts.get(player) as IAuthContext<TUser> | undefined)?.user ?? null,
+        enumerable: true,
+        configurable: false
+    });
+
+    return player as AuthPlayer<TUser>;
+}
+
+/**
+ * @zh 包装房间类添加认证功能
+ * @en Wrap room class with authentication functionality
+ *
+ * @zh 使用 mixin 模式为房间添加认证检查，在玩家加入前验证认证状态
+ * @en Uses mixin pattern to add auth checks to room, validates auth before player joins
+ *
+ * @example
+ * ```typescript
+ * import { Room, onMessage } from '@esengine/server';
+ * import { withRoomAuth, type AuthPlayer } from '@esengine/server/auth';
+ *
+ * interface User {
+ *     id: string;
+ *     name: string;
+ *     roles: string[];
+ * }
+ *
+ * class GameRoom extends withRoomAuth<User>(Room, {
+ *     requireAuth: true,
+ *     allowedRoles: ['player', 'premium'],
+ * }) {
+ *     onJoin(player: AuthPlayer<User>) {
+ *         console.log(`${player.user?.name} joined the game`);
+ *         this.broadcast('PlayerJoined', {
+ *             id: player.id,
+ *             name: player.user?.name
+ *         });
+ *     }
+ *
+ *     // Optional: custom auth validation
+ *     async onAuth(player: AuthPlayer<User>): Promise<boolean> {
+ *         // Additional validation logic
+ *         if (player.auth.hasRole('banned')) {
+ *             return false;
+ *         }
+ *         return true;
+ *     }
+ *
+ *     @onMessage('Chat')
+ *     handleChat(data: { text: string }, player: AuthPlayer<User>) {
+ *         this.broadcast('Chat', {
+ *             from: player.user?.name ?? 'Guest',
+ *             text: data.text
+ *         });
+ *     }
+ * }
+ * ```
+ */
+export function withRoomAuth<TUser = unknown, TBase extends new (...args: any[]) => Room = new (...args: any[]) => Room>(
+    Base: TBase,
+    config: AuthRoomConfig = {}
+): TBase & (new (...args: any[]) => IAuthRoom<TUser>) {
+    const {
+        requireAuth = true,
+        allowedRoles = [],
+        roleCheckMode = 'any'
+    } = config;
+
+    abstract class AuthRoom extends (Base as new (...args: any[]) => Room) implements IAuthRoom<TUser> {
+        private _originalOnJoin: ((player: Player) => void | Promise<void>) | undefined;
+
+        constructor(...args: any[]) {
+            super(...args);
+            this._originalOnJoin = this.onJoin?.bind(this);
+            this.onJoin = this._authOnJoin.bind(this);
+        }
+
+        /**
+         * @zh 认证钩子（可覆盖）
+         * @en Auth hook (can be overridden)
+         */
+        onAuth?(player: AuthPlayer<TUser>): boolean | Promise<boolean>;
+
+        /**
+         * @zh 包装的 onJoin 方法
+         * @en Wrapped onJoin method
+         */
+        private async _authOnJoin(player: Player): Promise<void> {
+            const conn = (player as any).connection ?? (player as any)._conn;
+            const authContext = conn
+                ? (getAuthContext<TUser>(conn) ?? createGuestContext<TUser>())
+                : createGuestContext<TUser>();
+
+            if (requireAuth && !authContext.isAuthenticated) {
+                console.warn(`[AuthRoom] Rejected unauthenticated player: ${player.id}`);
+                this.kick(player as any, 'Authentication required');
+                return;
+            }
+
+            if (allowedRoles.length > 0) {
+                const hasRole = roleCheckMode === 'any'
+                    ? authContext.hasAnyRole(allowedRoles)
+                    : authContext.hasAllRoles(allowedRoles);
+
+                if (!hasRole) {
+                    console.warn(`[AuthRoom] Rejected player ${player.id}: insufficient roles`);
+                    this.kick(player as any, 'Insufficient permissions');
+                    return;
+                }
+            }
+
+            const authPlayer = wrapPlayerWithAuth<TUser>(player, authContext);
+
+            if (typeof this.onAuth === 'function') {
+                try {
+                    const allowed = await this.onAuth(authPlayer);
+                    if (!allowed) {
+                        console.warn(`[AuthRoom] Rejected player ${player.id}: onAuth returned false`);
+                        this.kick(player as any, 'Authentication rejected');
+                        return;
+                    }
+                } catch (error) {
+                    console.error(`[AuthRoom] Error in onAuth for player ${player.id}:`, error);
+                    this.kick(player as any, 'Authentication error');
+                    return;
+                }
+            }
+
+            if (this._originalOnJoin) {
+                await this._originalOnJoin(authPlayer as unknown as Player);
+            }
+        }
+
+        /**
+         * @zh 获取带认证信息的玩家
+         * @en Get player with auth info
+         */
+        getAuthPlayer(id: string): AuthPlayer<TUser> | undefined {
+            const player = this.getPlayer(id);
+            return player as AuthPlayer<TUser> | undefined;
+        }
+
+        /**
+         * @zh 获取所有带认证信息的玩家
+         * @en Get all players with auth info
+         */
+        getAuthPlayers(): AuthPlayer<TUser>[] {
+            return this.players as AuthPlayer<TUser>[];
+        }
+
+        /**
+         * @zh 按角色获取玩家
+         * @en Get players by role
+         */
+        getPlayersByRole(role: string): AuthPlayer<TUser>[] {
+            return this.getAuthPlayers().filter(p => p.auth?.hasRole(role));
+        }
+
+        /**
+         * @zh 按用户 ID 获取玩家
+         * @en Get player by user ID
+         */
+        getPlayerByUserId(userId: string): AuthPlayer<TUser> | undefined {
+            return this.getAuthPlayers().find(p => p.auth?.userId === userId);
+        }
+    }
+
+    return AuthRoom as unknown as TBase & (new (...args: any[]) => IAuthRoom<TUser>);
+}
+
+/**
+ * @zh 抽象认证房间基类
+ * @en Abstract auth room base class
+ *
+ * @zh 如果不想使用 mixin，可以直接继承此类
+ * @en If you don't want to use mixin, you can extend this class directly
+ *
+ * @example
+ * ```typescript
+ * import { AuthRoomBase } from '@esengine/server/auth';
+ *
+ * class GameRoom extends AuthRoomBase<User> {
+ *     protected readonly authConfig = {
+ *         requireAuth: true,
+ *         allowedRoles: ['player']
+ *     };
+ *
+ *     onJoin(player: AuthPlayer<User>) {
+ *         // player has .auth and .user properties
+ *     }
+ * }
+ * ```
+ */
+export abstract class AuthRoomBase<TUser = unknown, TState = any, TPlayerData = Record<string, unknown>>
+    implements IAuthRoom<TUser> {
+
+    /**
+     * @zh 认证配置（子类可覆盖）
+     * @en Auth config (can be overridden by subclass)
+     */
+    protected readonly authConfig: AuthRoomConfig = {
+        requireAuth: true,
+        allowedRoles: [],
+        roleCheckMode: 'any'
+    };
+
+    /**
+     * @zh 认证钩子
+     * @en Auth hook
+     */
+    onAuth?(player: AuthPlayer<TUser>): boolean | Promise<boolean>;
+
+    getAuthPlayer(id: string): AuthPlayer<TUser> | undefined {
+        return undefined;
+    }
+
+    getAuthPlayers(): AuthPlayer<TUser>[] {
+        return [];
+    }
+
+    getPlayersByRole(role: string): AuthPlayer<TUser>[] {
+        return [];
+    }
+
+    getPlayerByUserId(userId: string): AuthPlayer<TUser> | undefined {
+        return undefined;
+    }
+}

packages/framework/server/src/auth/providers/IAuthProvider.ts

@@ -0,0 +1,6 @@
+/**
+ * @zh 认证提供者接口
+ * @en Authentication provider interface
+ */
+
+export type { IAuthProvider, AuthResult, AuthErrorCode } from '../types.js';

packages/framework/server/src/auth/providers/JwtAuthProvider.ts

@@ -0,0 +1,253 @@
+/**
+ * @zh JWT 认证提供者
+ * @en JWT authentication provider
+ */
+
+import type { IAuthProvider, AuthResult, AuthErrorCode } from '../types.js';
+import * as jwt from 'jsonwebtoken';
+
+/**
+ * @zh JWT 载荷
+ * @en JWT payload
+ */
+export interface JwtPayload {
+    /**
+     * @zh 主题（用户 ID）
+     * @en Subject (user ID)
+     */
+    sub?: string;
+
+    /**
+     * @zh 签发时间
+     * @en Issued at
+     */
+    iat?: number;
+
+    /**
+     * @zh 过期时间
+     * @en Expiration time
+     */
+    exp?: number;
+
+    /**
+     * @zh 自定义字段
+     * @en Custom fields
+     */
+    [key: string]: unknown;
+}
+
+/**
+ * @zh JWT 认证配置
+ * @en JWT authentication configuration
+ */
+export interface JwtAuthConfig<TUser = unknown> {
+    /**
+     * @zh 密钥
+     * @en Secret key
+     */
+    secret: string;
+
+    /**
+     * @zh 算法
+     * @en Algorithm
+     * @defaultValue 'HS256'
+     */
+    algorithm?: 'HS256' | 'HS384' | 'HS512' | 'RS256' | 'RS384' | 'RS512';
+
+    /**
+     * @zh 令牌过期时间（秒）
+     * @en Token expiration in seconds
+     * @defaultValue 3600
+     */
+    expiresIn?: number;
+
+    /**
+     * @zh 从载荷获取用户信息
+     * @en Get user from payload
+     */
+    getUser?: (payload: JwtPayload) => TUser | Promise<TUser | null> | null;
+
+    /**
+     * @zh 签发者
+     * @en Issuer
+     */
+    issuer?: string;
+
+    /**
+     * @zh 受众
+     * @en Audience
+     */
+    audience?: string;
+}
+
+/**
+ * @zh JWT 认证提供者
+ * @en JWT authentication provider
+ *
+ * @zh 使用 jsonwebtoken 库实现 JWT 认证
+ * @en Uses jsonwebtoken library for JWT authentication
+ *
+ * @example
+ * ```typescript
+ * const jwtProvider = createJwtAuthProvider({
+ *     secret: 'your-secret-key',
+ *     expiresIn: 3600,
+ *     getUser: async (payload) => {
+ *         return await db.users.findById(payload.sub);
+ *     }
+ * });
+ * ```
+ */
+export class JwtAuthProvider<TUser = unknown> implements IAuthProvider<TUser, string> {
+    readonly name = 'jwt';
+
+    private _config: Required<Pick<JwtAuthConfig<TUser>, 'secret' | 'algorithm' | 'expiresIn'>> & JwtAuthConfig<TUser>;
+
+    constructor(config: JwtAuthConfig<TUser>) {
+        this._config = {
+            algorithm: 'HS256',
+            expiresIn: 3600,
+            ...config
+        };
+    }
+
+    /**
+     * @zh 验证令牌
+     * @en Verify token
+     */
+    async verify(token: string): Promise<AuthResult<TUser>> {
+        if (!token) {
+            return {
+                success: false,
+                error: 'Token is required',
+                errorCode: 'INVALID_TOKEN'
+            };
+        }
+
+        try {
+            const verifyOptions: jwt.VerifyOptions = {
+                algorithms: [this._config.algorithm]
+            };
+            if (this._config.issuer) {
+                verifyOptions.issuer = this._config.issuer;
+            }
+            if (this._config.audience) {
+                verifyOptions.audience = this._config.audience;
+            }
+            const payload = jwt.verify(token, this._config.secret, verifyOptions) as JwtPayload;
+
+            let user: TUser | null = null;
+
+            if (this._config.getUser) {
+                user = await this._config.getUser(payload);
+                if (!user) {
+                    return {
+                        success: false,
+                        error: 'User not found',
+                        errorCode: 'USER_NOT_FOUND'
+                    };
+                }
+            } else {
+                user = payload as unknown as TUser;
+            }
+
+            return {
+                success: true,
+                user,
+                token,
+                expiresAt: payload.exp ? payload.exp * 1000 : undefined
+            };
+        } catch (error) {
+            const err = error as Error;
+
+            if (err.name === 'TokenExpiredError') {
+                return {
+                    success: false,
+                    error: 'Token has expired',
+                    errorCode: 'EXPIRED_TOKEN'
+                };
+            }
+
+            return {
+                success: false,
+                error: err.message || 'Invalid token',
+                errorCode: 'INVALID_TOKEN'
+            };
+        }
+    }
+
+    /**
+     * @zh 刷新令牌
+     * @en Refresh token
+     */
+    async refresh(token: string): Promise<AuthResult<TUser>> {
+        const result = await this.verify(token);
+
+        if (!result.success || !result.user) {
+            return result;
+        }
+
+        const payload = jwt.decode(token) as JwtPayload;
+
+        // Remove JWT standard claims that will be regenerated
+        const { iat, exp, nbf, ...restPayload } = payload;
+
+        const newToken = this.sign(restPayload);
+
+        return {
+            success: true,
+            user: result.user,
+            token: newToken,
+            expiresAt: Date.now() + this._config.expiresIn * 1000
+        };
+    }
+
+    /**
+     * @zh 生成令牌
+     * @en Generate token
+     */
+    sign(payload: Record<string, unknown>): string {
+        const signOptions: jwt.SignOptions = {
+            algorithm: this._config.algorithm,
+            expiresIn: this._config.expiresIn
+        };
+        if (this._config.issuer) {
+            signOptions.issuer = this._config.issuer;
+        }
+        if (this._config.audience) {
+            signOptions.audience = this._config.audience;
+        }
+        return jwt.sign(payload, this._config.secret, signOptions);
+    }
+
+    /**
+     * @zh 解码令牌（不验证）
+     * @en Decode token (without verification)
+     */
+    decode(token: string): JwtPayload | null {
+        return jwt.decode(token) as JwtPayload | null;
+    }
+}
+
+/**
+ * @zh 创建 JWT 认证提供者
+ * @en Create JWT authentication provider
+ *
+ * @example
+ * ```typescript
+ * import { createJwtAuthProvider } from '@esengine/server/auth';
+ *
+ * const jwtProvider = createJwtAuthProvider({
+ *     secret: process.env.JWT_SECRET!,
+ *     expiresIn: 3600,
+ *     getUser: async (payload) => {
+ *         return { id: payload.sub, name: payload.name };
+ *     }
+ * });
+ * ```
+ */
+export function createJwtAuthProvider<TUser = unknown>(
+    config: JwtAuthConfig<TUser>
+): JwtAuthProvider<TUser> {
+    return new JwtAuthProvider<TUser>(config);
+}

packages/framework/server/src/auth/providers/SessionAuthProvider.ts

@@ -0,0 +1,292 @@
+/**
+ * @zh Session 认证提供者
+ * @en Session authentication provider
+ */
+
+import { randomBytes } from 'crypto';
+import type { IAuthProvider, AuthResult } from '../types.js';
+
+/**
+ * @zh Session 存储接口（兼容 ITransactionStorage）
+ * @en Session storage interface (compatible with ITransactionStorage)
+ */
+export interface ISessionStorage {
+    get<T>(key: string): Promise<T | null>;
+    set<T>(key: string, value: T, ttl?: number): Promise<void>;
+    delete(key: string): Promise<boolean>;
+}
+
+/**
+ * @zh Session 数据
+ * @en Session data
+ */
+export interface SessionData<TUser = unknown> {
+    /**
+     * @zh 用户信息
+     * @en User information
+     */
+    user: TUser;
+
+    /**
+     * @zh 创建时间
+     * @en Created at
+     */
+    createdAt: number;
+
+    /**
+     * @zh 最后活跃时间
+     * @en Last active at
+     */
+    lastActiveAt: number;
+
+    /**
+     * @zh 自定义数据
+     * @en Custom data
+     */
+    data?: Record<string, unknown>;
+}
+
+/**
+ * @zh Session 认证配置
+ * @en Session authentication configuration
+ */
+export interface SessionAuthConfig<TUser = unknown> {
+    /**
+     * @zh Session 存储
+     * @en Session storage
+     */
+    storage: ISessionStorage;
+
+    /**
+     * @zh Session 过期时间（毫秒）
+     * @en Session expiration in milliseconds
+     * @defaultValue 86400000 (24h)
+     */
+    sessionTTL?: number;
+
+    /**
+     * @zh Session 键前缀
+     * @en Session key prefix
+     * @defaultValue 'session:'
+     */
+    prefix?: string;
+
+    /**
+     * @zh 验证用户（可选额外验证）
+     * @en Validate user (optional extra validation)
+     */
+    validateUser?: (user: TUser) => boolean | Promise<boolean>;
+
+    /**
+     * @zh 是否自动续期
+     * @en Auto renew session
+     * @defaultValue true
+     */
+    autoRenew?: boolean;
+}
+
+/**
+ * @zh Session 认证提供者
+ * @en Session authentication provider
+ *
+ * @zh 基于存储的会话认证，支持 Redis、MongoDB 等后端
+ * @en Storage-based session authentication, supports Redis, MongoDB, etc.
+ *
+ * @example
+ * ```typescript
+ * import { createSessionAuthProvider } from '@esengine/server/auth';
+ * import { createRedisStorage } from '@esengine/transaction';
+ *
+ * const sessionProvider = createSessionAuthProvider({
+ *     storage: createRedisStorage({ factory: () => new Redis() }),
+ *     sessionTTL: 86400000, // 24 hours
+ * });
+ * ```
+ */
+export class SessionAuthProvider<TUser = unknown> implements IAuthProvider<TUser, string> {
+    readonly name = 'session';
+
+    private _config: Required<Pick<SessionAuthConfig<TUser>, 'sessionTTL' | 'prefix' | 'autoRenew'>> & SessionAuthConfig<TUser>;
+
+    constructor(config: SessionAuthConfig<TUser>) {
+        this._config = {
+            sessionTTL: 86400000,
+            prefix: 'session:',
+            autoRenew: true,
+            ...config
+        };
+    }
+
+    /**
+     * @zh 获取存储键
+     * @en Get storage key
+     */
+    private _getKey(sessionId: string): string {
+        return `${this._config.prefix}${sessionId}`;
+    }
+
+    /**
+     * @zh 验证 Session
+     * @en Verify session
+     */
+    async verify(sessionId: string): Promise<AuthResult<TUser>> {
+        if (!sessionId) {
+            return {
+                success: false,
+                error: 'Session ID is required',
+                errorCode: 'INVALID_TOKEN'
+            };
+        }
+
+        const key = this._getKey(sessionId);
+        const session = await this._config.storage.get<SessionData<TUser>>(key);
+
+        if (!session) {
+            return {
+                success: false,
+                error: 'Session not found or expired',
+                errorCode: 'EXPIRED_TOKEN'
+            };
+        }
+
+        if (this._config.validateUser) {
+            const isValid = await this._config.validateUser(session.user);
+            if (!isValid) {
+                return {
+                    success: false,
+                    error: 'User validation failed',
+                    errorCode: 'ACCOUNT_DISABLED'
+                };
+            }
+        }
+
+        if (this._config.autoRenew) {
+            session.lastActiveAt = Date.now();
+            await this._config.storage.set(key, session, this._config.sessionTTL);
+        }
+
+        return {
+            success: true,
+            user: session.user,
+            token: sessionId,
+            expiresAt: session.createdAt + this._config.sessionTTL
+        };
+    }
+
+    /**
+     * @zh 刷新 Session
+     * @en Refresh session
+     */
+    async refresh(sessionId: string): Promise<AuthResult<TUser>> {
+        const result = await this.verify(sessionId);
+
+        if (!result.success) {
+            return result;
+        }
+
+        const key = this._getKey(sessionId);
+        const session = await this._config.storage.get<SessionData<TUser>>(key);
+
+        if (session) {
+            session.lastActiveAt = Date.now();
+            await this._config.storage.set(key, session, this._config.sessionTTL);
+        }
+
+        return {
+            ...result,
+            expiresAt: Date.now() + this._config.sessionTTL
+        };
+    }
+
+    /**
+     * @zh 撤销 Session
+     * @en Revoke session
+     */
+    async revoke(sessionId: string): Promise<boolean> {
+        const key = this._getKey(sessionId);
+        return await this._config.storage.delete(key);
+    }
+
+    /**
+     * @zh 创建 Session
+     * @en Create session
+     */
+    async createSession(user: TUser, data?: Record<string, unknown>): Promise<string> {
+        const sessionId = this._generateSessionId();
+        const key = this._getKey(sessionId);
+
+        const session: SessionData<TUser> = {
+            user,
+            createdAt: Date.now(),
+            lastActiveAt: Date.now(),
+            data
+        };
+
+        await this._config.storage.set(key, session, this._config.sessionTTL);
+
+        return sessionId;
+    }
+
+    /**
+     * @zh 获取 Session 数据
+     * @en Get session data
+     */
+    async getSession(sessionId: string): Promise<SessionData<TUser> | null> {
+        const key = this._getKey(sessionId);
+        return await this._config.storage.get<SessionData<TUser>>(key);
+    }
+
+    /**
+     * @zh 更新 Session 数据
+     * @en Update session data
+     */
+    async updateSession(sessionId: string, data: Record<string, unknown>): Promise<boolean> {
+        const key = this._getKey(sessionId);
+        const session = await this._config.storage.get<SessionData<TUser>>(key);
+
+        if (!session) {
+            return false;
+        }
+
+        session.data = { ...session.data, ...data };
+        session.lastActiveAt = Date.now();
+        await this._config.storage.set(key, session, this._config.sessionTTL);
+
+        return true;
+    }
+
+    /**
+     * @zh 生成 Session ID（使用加密安全的随机数）
+     * @en Generate session ID (using cryptographically secure random)
+     */
+    private _generateSessionId(): string {
+        return randomBytes(32).toString('hex');
+    }
+}
+
+/**
+ * @zh 创建 Session 认证提供者
+ * @en Create session authentication provider
+ *
+ * @example
+ * ```typescript
+ * import { createSessionAuthProvider } from '@esengine/server/auth';
+ * import { MemoryStorage } from '@esengine/transaction';
+ *
+ * const sessionProvider = createSessionAuthProvider({
+ *     storage: new MemoryStorage(),
+ *     sessionTTL: 3600000, // 1 hour
+ * });
+ *
+ * // Create a session
+ * const sessionId = await sessionProvider.createSession({ id: '1', name: 'Alice' });
+ *
+ * // Verify session
+ * const result = await sessionProvider.verify(sessionId);
+ * ```
+ */
+export function createSessionAuthProvider<TUser = unknown>(
+    config: SessionAuthConfig<TUser>
+): SessionAuthProvider<TUser> {
+    return new SessionAuthProvider<TUser>(config);
+}

packages/framework/server/src/auth/providers/index.ts

@@ -0,0 +1,8 @@
+/**
+ * @zh 认证提供者
+ * @en Authentication providers
+ */
+
+export type { IAuthProvider, AuthResult, AuthErrorCode } from './IAuthProvider.js';
+export { JwtAuthProvider, createJwtAuthProvider, type JwtAuthConfig, type JwtPayload } from './JwtAuthProvider.js';
+export { SessionAuthProvider, createSessionAuthProvider, type SessionAuthConfig, type SessionData, type ISessionStorage } from './SessionAuthProvider.js';

packages/framework/server/src/auth/testing/MockAuthProvider.ts

@@ -0,0 +1,278 @@
+/**
+ * @zh 模拟认证提供者
+ * @en Mock authentication provider
+ */
+
+import type { IAuthProvider, AuthResult, AuthErrorCode } from '../types.js';
+
+/**
+ * @zh 模拟用户
+ * @en Mock user
+ */
+export interface MockUser {
+    id: string;
+    name?: string;
+    roles?: string[];
+    [key: string]: unknown;
+}
+
+/**
+ * @zh 模拟认证配置
+ * @en Mock authentication configuration
+ */
+export interface MockAuthConfig {
+    /**
+     * @zh 预设用户列表
+     * @en Preset user list
+     */
+    users?: MockUser[];
+
+    /**
+     * @zh 默认用户（无 token 时返回）
+     * @en Default user (returned when no token)
+     */
+    defaultUser?: MockUser;
+
+    /**
+     * @zh 模拟延迟（毫秒）
+     * @en Simulated delay (ms)
+     */
+    delay?: number;
+
+    /**
+     * @zh 是否自动创建用户
+     * @en Auto create users
+     */
+    autoCreate?: boolean;
+
+    /**
+     * @zh 验证令牌格式
+     * @en Token format validator
+     */
+    validateToken?: (token: string) => boolean;
+}
+
+/**
+ * @zh 模拟认证提供者
+ * @en Mock authentication provider
+ *
+ * @zh 用于测试的认证提供者，不需要真实的 JWT 或数据库
+ * @en Authentication provider for testing, no real JWT or database required
+ *
+ * @example
+ * ```typescript
+ * import { createMockAuthProvider } from '@esengine/server/auth/testing';
+ *
+ * const mockProvider = createMockAuthProvider({
+ *     users: [
+ *         { id: '1', name: 'Alice', roles: ['player'] },
+ *         { id: '2', name: 'Bob', roles: ['admin'] },
+ *     ],
+ *     autoCreate: true, // Unknown tokens create guest users
+ * });
+ *
+ * // Verify with user ID as token
+ * const result = await mockProvider.verify('1');
+ * // result.user = { id: '1', name: 'Alice', roles: ['player'] }
+ * ```
+ */
+export class MockAuthProvider<TUser extends MockUser = MockUser>
+    implements IAuthProvider<TUser, string> {
+
+    readonly name = 'mock';
+
+    private _users: Map<string, TUser>;
+    private _config: MockAuthConfig;
+    private _revokedTokens: Set<string> = new Set();
+
+    constructor(config: MockAuthConfig = {}) {
+        this._config = config;
+        this._users = new Map();
+
+        if (config.users) {
+            for (const user of config.users) {
+                this._users.set(user.id, user as TUser);
+            }
+        }
+    }
+
+    /**
+     * @zh 模拟延迟
+     * @en Simulate delay
+     */
+    private async _delay(): Promise<void> {
+        if (this._config.delay && this._config.delay > 0) {
+            await new Promise(resolve => setTimeout(resolve, this._config.delay));
+        }
+    }
+
+    /**
+     * @zh 验证令牌
+     * @en Verify token
+     */
+    async verify(token: string): Promise<AuthResult<TUser>> {
+        await this._delay();
+
+        if (!token) {
+            if (this._config.defaultUser) {
+                return {
+                    success: true,
+                    user: this._config.defaultUser as TUser,
+                    token: 'default'
+                };
+            }
+            return {
+                success: false,
+                error: 'Token is required',
+                errorCode: 'INVALID_TOKEN'
+            };
+        }
+
+        if (this._revokedTokens.has(token)) {
+            return {
+                success: false,
+                error: 'Token has been revoked',
+                errorCode: 'INVALID_TOKEN'
+            };
+        }
+
+        if (this._config.validateToken && !this._config.validateToken(token)) {
+            return {
+                success: false,
+                error: 'Invalid token format',
+                errorCode: 'INVALID_TOKEN'
+            };
+        }
+
+        const user = this._users.get(token);
+
+        if (user) {
+            return {
+                success: true,
+                user,
+                token,
+                expiresAt: Date.now() + 3600000
+            };
+        }
+
+        if (this._config.autoCreate) {
+            const newUser = {
+                id: token,
+                name: `User_${token}`,
+                roles: ['guest']
+            } as TUser;
+
+            this._users.set(token, newUser);
+
+            return {
+                success: true,
+                user: newUser,
+                token,
+                expiresAt: Date.now() + 3600000
+            };
+        }
+
+        return {
+            success: false,
+            error: 'User not found',
+            errorCode: 'USER_NOT_FOUND'
+        };
+    }
+
+    /**
+     * @zh 刷新令牌
+     * @en Refresh token
+     */
+    async refresh(token: string): Promise<AuthResult<TUser>> {
+        return this.verify(token);
+    }
+
+    /**
+     * @zh 撤销令牌
+     * @en Revoke token
+     */
+    async revoke(token: string): Promise<boolean> {
+        this._revokedTokens.add(token);
+        return true;
+    }
+
+    /**
+     * @zh 添加用户
+     * @en Add user
+     */
+    addUser(user: TUser): void {
+        this._users.set(user.id, user);
+    }
+
+    /**
+     * @zh 移除用户
+     * @en Remove user
+     */
+    removeUser(id: string): boolean {
+        return this._users.delete(id);
+    }
+
+    /**
+     * @zh 获取用户
+     * @en Get user
+     */
+    getUser(id: string): TUser | undefined {
+        return this._users.get(id);
+    }
+
+    /**
+     * @zh 获取所有用户
+     * @en Get all users
+     */
+    getUsers(): TUser[] {
+        return Array.from(this._users.values());
+    }
+
+    /**
+     * @zh 清空所有状态
+     * @en Clear all state
+     */
+    clear(): void {
+        this._users.clear();
+        this._revokedTokens.clear();
+
+        if (this._config.users) {
+            for (const user of this._config.users) {
+                this._users.set(user.id, user as TUser);
+            }
+        }
+    }
+
+    /**
+     * @zh 生成测试令牌
+     * @en Generate test token
+     */
+    generateToken(userId: string): string {
+        return userId;
+    }
+}
+
+/**
+ * @zh 创建模拟认证提供者
+ * @en Create mock authentication provider
+ *
+ * @example
+ * ```typescript
+ * const provider = createMockAuthProvider({
+ *     users: [
+ *         { id: 'admin', name: 'Admin', roles: ['admin'] }
+ *     ]
+ * });
+ *
+ * // Use in tests
+ * const server = withAuth(await createServer({ port: 0 }), {
+ *     provider,
+ *     extractCredentials: (req) => req.headers['x-token']
+ * });
+ * ```
+ */
+export function createMockAuthProvider<TUser extends MockUser = MockUser>(
+    config?: MockAuthConfig
+): MockAuthProvider<TUser> {
+    return new MockAuthProvider<TUser>(config);
+}

packages/framework/server/src/auth/testing/index.ts

@@ -0,0 +1,11 @@
+/**
+ * @zh 认证测试工具
+ * @en Authentication testing utilities
+ */
+
+export {
+    MockAuthProvider,
+    createMockAuthProvider,
+    type MockUser,
+    type MockAuthConfig
+} from './MockAuthProvider.js';

packages/framework/server/src/auth/types.ts

@@ -0,0 +1,400 @@
+/**
+ * @zh 认证系统类型定义
+ * @en Authentication system type definitions
+ */
+
+import type { ServerConnection, ApiContext, MsgContext, GameServer } from '../types/index.js';
+
+// ============================================================================
+// Error Codes
+// ============================================================================
+
+/**
+ * @zh 认证错误代码
+ * @en Authentication error codes
+ */
+export type AuthErrorCode =
+    | 'INVALID_CREDENTIALS'
+    | 'EXPIRED_TOKEN'
+    | 'INVALID_TOKEN'
+    | 'USER_NOT_FOUND'
+    | 'ACCOUNT_DISABLED'
+    | 'RATE_LIMITED'
+    | 'INSUFFICIENT_PERMISSIONS';
+
+// ============================================================================
+// Auth Result
+// ============================================================================
+
+/**
+ * @zh 认证结果
+ * @en Authentication result
+ */
+export interface AuthResult<TUser = unknown> {
+    /**
+     * @zh 是否成功
+     * @en Whether succeeded
+     */
+    success: boolean;
+
+    /**
+     * @zh 用户信息
+     * @en User information
+     */
+    user?: TUser;
+
+    /**
+     * @zh 错误信息
+     * @en Error message
+     */
+    error?: string;
+
+    /**
+     * @zh 错误代码
+     * @en Error code
+     */
+    errorCode?: AuthErrorCode;
+
+    /**
+     * @zh 令牌
+     * @en Token
+     */
+    token?: string;
+
+    /**
+     * @zh 令牌过期时间（时间戳）
+     * @en Token expiration time (timestamp)
+     */
+    expiresAt?: number;
+}
+
+// ============================================================================
+// Auth Provider
+// ============================================================================
+
+/**
+ * @zh 认证提供者接口
+ * @en Authentication provider interface
+ */
+export interface IAuthProvider<TUser = unknown, TCredentials = unknown> {
+    /**
+     * @zh 提供者名称
+     * @en Provider name
+     */
+    readonly name: string;
+
+    /**
+     * @zh 验证凭证
+     * @en Verify credentials
+     *
+     * @param credentials - @zh 凭证数据 @en Credential data
+     * @returns @zh 验证结果 @en Verification result
+     */
+    verify(credentials: TCredentials): Promise<AuthResult<TUser>>;
+
+    /**
+     * @zh 刷新令牌（可选）
+     * @en Refresh token (optional)
+     */
+    refresh?(token: string): Promise<AuthResult<TUser>>;
+
+    /**
+     * @zh 撤销令牌（可选）
+     * @en Revoke token (optional)
+     */
+    revoke?(token: string): Promise<boolean>;
+}
+
+// ============================================================================
+// Auth Context
+// ============================================================================
+
+/**
+ * @zh 认证上下文接口
+ * @en Authentication context interface
+ */
+export interface IAuthContext<TUser = unknown> {
+    /**
+     * @zh 是否已认证
+     * @en Whether authenticated
+     */
+    readonly isAuthenticated: boolean;
+
+    /**
+     * @zh 用户信息
+     * @en User information
+     */
+    readonly user: TUser | null;
+
+    /**
+     * @zh 用户 ID
+     * @en User ID
+     */
+    readonly userId: string | null;
+
+    /**
+     * @zh 用户角色
+     * @en User roles
+     */
+    readonly roles: ReadonlyArray<string>;
+
+    /**
+     * @zh 认证时间
+     * @en Authentication timestamp
+     */
+    readonly authenticatedAt: number | null;
+
+    /**
+     * @zh 令牌过期时间
+     * @en Token expiration time
+     */
+    readonly expiresAt: number | null;
+
+    /**
+     * @zh 检查是否有指定角色
+     * @en Check if has specified role
+     */
+    hasRole(role: string): boolean;
+
+    /**
+     * @zh 检查是否有任一指定角色
+     * @en Check if has any of specified roles
+     */
+    hasAnyRole(roles: string[]): boolean;
+
+    /**
+     * @zh 检查是否有所有指定角色
+     * @en Check if has all specified roles
+     */
+    hasAllRoles(roles: string[]): boolean;
+}
+
+// ============================================================================
+// Auth Connection
+// ============================================================================
+
+/**
+ * @zh 认证连接数据
+ * @en Authentication connection data
+ */
+export interface AuthConnectionData<TUser = unknown> {
+    /**
+     * @zh 认证上下文
+     * @en Authentication context
+     */
+    auth: IAuthContext<TUser>;
+}
+
+/**
+ * @zh 带认证的连接
+ * @en Connection with authentication
+ */
+export interface AuthConnection<TUser = unknown, TData extends AuthConnectionData<TUser> = AuthConnectionData<TUser>>
+    extends ServerConnection<TData> {
+    /**
+     * @zh 认证上下文（快捷访问）
+     * @en Authentication context (shortcut)
+     */
+    readonly auth: IAuthContext<TUser>;
+}
+
+/**
+ * @zh 带认证的 API 上下文
+ * @en API context with authentication
+ */
+export interface AuthApiContext<TUser = unknown, TData extends AuthConnectionData<TUser> = AuthConnectionData<TUser>>
+    extends ApiContext<TData> {
+    /**
+     * @zh 当前连接（带认证）
+     * @en Current connection (with auth)
+     */
+    conn: AuthConnection<TUser, TData>;
+}
+
+/**
+ * @zh 带认证的消息上下文
+ * @en Message context with authentication
+ */
+export interface AuthMsgContext<TUser = unknown, TData extends AuthConnectionData<TUser> = AuthConnectionData<TUser>>
+    extends MsgContext<TData> {
+    /**
+     * @zh 当前连接（带认证）
+     * @en Current connection (with auth)
+     */
+    conn: AuthConnection<TUser, TData>;
+}
+
+// ============================================================================
+// Auth Server Config
+// ============================================================================
+
+/**
+ * @zh 连接请求信息
+ * @en Connection request info
+ */
+export interface ConnectionRequest {
+    /**
+     * @zh 请求 URL
+     * @en Request URL
+     */
+    url: string;
+
+    /**
+     * @zh 请求头
+     * @en Request headers
+     */
+    headers: Record<string, string | string[] | undefined>;
+
+    /**
+     * @zh 客户端 IP
+     * @en Client IP
+     */
+    ip: string;
+}
+
+/**
+ * @zh 认证服务器配置
+ * @en Authentication server configuration
+ */
+export interface AuthServerConfig<TUser = unknown> {
+    /**
+     * @zh 认证提供者
+     * @en Authentication provider
+     */
+    provider: IAuthProvider<TUser>;
+
+    /**
+     * @zh 从连接请求提取凭证
+     * @en Extract credentials from connection request
+     */
+    extractCredentials?: (req: ConnectionRequest) => unknown | Promise<unknown>;
+
+    /**
+     * @zh 连接时自动认证
+     * @en Auto authenticate on connection
+     * @defaultValue true
+     */
+    autoAuthOnConnect?: boolean;
+
+    /**
+     * @zh 未认证连接的宽限期（毫秒）
+     * @en Grace period for unauthenticated connections (ms)
+     * @defaultValue 30000
+     */
+    authGracePeriod?: number;
+
+    /**
+     * @zh 认证失败是否断开连接
+     * @en Disconnect on auth failure
+     * @defaultValue false
+     */
+    disconnectOnAuthFailure?: boolean;
+
+    /**
+     * @zh 认证成功回调
+     * @en Authentication success callback
+     */
+    onAuthSuccess?: (conn: ServerConnection, user: TUser) => void | Promise<void>;
+
+    /**
+     * @zh 认证失败回调
+     * @en Authentication failure callback
+     */
+    onAuthFailure?: (conn: ServerConnection, error: AuthResult<TUser>) => void | Promise<void>;
+}
+
+// ============================================================================
+// Auth Game Server
+// ============================================================================
+
+/**
+ * @zh 带认证的游戏服务器
+ * @en Game server with authentication
+ */
+export interface AuthGameServer<TUser = unknown> extends GameServer {
+    /**
+     * @zh 认证提供者
+     * @en Authentication provider
+     */
+    readonly authProvider: IAuthProvider<TUser>;
+
+    /**
+     * @zh 手动认证连接
+     * @en Manually authenticate connection
+     */
+    authenticate(
+        conn: ServerConnection,
+        credentials: unknown
+    ): Promise<AuthResult<TUser>>;
+
+    /**
+     * @zh 获取连接的认证上下文
+     * @en Get auth context for connection
+     */
+    getAuthContext(conn: ServerConnection): IAuthContext<TUser> | null;
+}
+
+// ============================================================================
+// Auth Room Config
+// ============================================================================
+
+/**
+ * @zh 带认证的房间配置
+ * @en Auth room configuration
+ */
+export interface AuthRoomConfig {
+    /**
+     * @zh 是否要求认证才能加入
+     * @en Require authentication to join
+     * @defaultValue true
+     */
+    requireAuth?: boolean;
+
+    /**
+     * @zh 允许的角色（空数组表示任意角色）
+     * @en Allowed roles (empty array means any role)
+     */
+    allowedRoles?: string[];
+
+    /**
+     * @zh 角色检查模式
+     * @en Role check mode
+     * @defaultValue 'any'
+     */
+    roleCheckMode?: 'any' | 'all';
+}
+
+// ============================================================================
+// Decorator Options
+// ============================================================================
+
+/**
+ * @zh requireAuth 装饰器选项
+ * @en requireAuth decorator options
+ */
+export interface RequireAuthOptions {
+    /**
+     * @zh 认证失败时的错误消息
+     * @en Error message on auth failure
+     */
+    errorMessage?: string;
+
+    /**
+     * @zh 是否允许访客
+     * @en Allow guest access
+     */
+    allowGuest?: boolean;
+}
+
+/**
+ * @zh requireRole 装饰器选项
+ * @en requireRole decorator options
+ */
+export interface RequireRoleOptions extends RequireAuthOptions {
+    /**
+     * @zh 角色检查模式
+     * @en Role check mode
+     * @defaultValue 'any'
+     */
+    mode?: 'any' | 'all';
+}

packages/framework/server/src/ecs/ECSRoom.test.ts

@@ -0,0 +1,348 @@
+/**
+ * @zh ECSRoom 集成测试
+ * @en ECSRoom integration tests
+ */
+
+import { describe, it, expect, beforeEach, afterEach, beforeAll, afterAll } from 'vitest'
+import {
+    Core,
+    Component,
+    ECSComponent,
+    sync,
+    initChangeTracker,
+    getSyncMetadata,
+    registerSyncComponent,
+} from '@esengine/ecs-framework'
+import { createTestEnv, type TestEnvironment, wait } from '../testing/TestServer.js'
+import { ECSRoom } from './ECSRoom.js'
+import type { Player } from '../room/Player.js'
+import { onMessage } from '../room/decorators.js'
+
+// ============================================================================
+// Test Components | 测试组件
+// ============================================================================
+
+@ECSComponent('ECSRoomTest_PlayerComponent')
+class PlayerComponent extends Component {
+    @sync('string') name: string = ''
+    @sync('uint16') score: number = 0
+    @sync('float32') x: number = 0
+    @sync('float32') y: number = 0
+}
+
+@ECSComponent('ECSRoomTest_HealthComponent')
+class HealthComponent extends Component {
+    @sync('int32') current: number = 100
+    @sync('int32') max: number = 100
+}
+
+// ============================================================================
+// Test Room | 测试房间
+// ============================================================================
+
+interface TestRoomState {
+    gameStarted: boolean
+}
+
+interface TestPlayerData {
+    nickname: string
+}
+
+class TestECSRoom extends ECSRoom<TestRoomState, TestPlayerData> {
+    state: TestRoomState = {
+        gameStarted: false,
+    }
+
+    onCreate(): void {
+        // 可以在这里添加系统
+    }
+
+    onJoin(player: Player<TestPlayerData>): void {
+        const entity = this.createPlayerEntity(player.id)
+        const comp = entity.addComponent(new PlayerComponent())
+        comp.name = player.data.nickname || `Player_${player.id.slice(-4)}`
+        comp.x = Math.random() * 100
+        comp.y = Math.random() * 100
+
+        this.broadcast('PlayerJoined', {
+            playerId: player.id,
+            name: comp.name,
+        })
+    }
+
+    async onLeave(player: Player<TestPlayerData>, reason?: string): Promise<void> {
+        await super.onLeave(player, reason)
+        this.broadcast('PlayerLeft', { playerId: player.id })
+    }
+
+    @onMessage('Move')
+    handleMove(data: { x: number; y: number }, player: Player<TestPlayerData>): void {
+        const entity = this.getPlayerEntity(player.id)
+        if (entity) {
+            const comp = entity.getComponent(PlayerComponent)
+            if (comp) {
+                comp.x = data.x
+                comp.y = data.y
+            }
+        }
+    }
+
+    @onMessage('AddScore')
+    handleAddScore(data: { amount: number }, player: Player<TestPlayerData>): void {
+        const entity = this.getPlayerEntity(player.id)
+        if (entity) {
+            const comp = entity.getComponent(PlayerComponent)
+            if (comp) {
+                comp.score += data.amount
+            }
+        }
+    }
+
+    @onMessage('Ping')
+    handlePing(_data: unknown, player: Player<TestPlayerData>): void {
+        player.send('Pong', { timestamp: Date.now() })
+    }
+
+    getWorld() {
+        return this.world
+    }
+
+    getScene() {
+        return this.scene
+    }
+
+    getPlayerEntityCount(): number {
+        return this.scene.entities.buffer.length
+    }
+}
+
+// ============================================================================
+// Test Suites | 测试套件
+// ============================================================================
+
+describe('ECSRoom Integration Tests', () => {
+    let env: TestEnvironment
+
+    beforeAll(() => {
+        Core.create()
+        registerSyncComponent('ECSRoomTest_PlayerComponent', PlayerComponent)
+        registerSyncComponent('ECSRoomTest_HealthComponent', HealthComponent)
+    })
+
+    afterAll(() => {
+        Core.destroy()
+    })
+
+    beforeEach(async () => {
+        env = await createTestEnv({ tickRate: 20 })
+    })
+
+    afterEach(async () => {
+        await env.cleanup()
+    })
+
+    // ========================================================================
+    // Room Creation | 房间创建
+    // ========================================================================
+
+    describe('Room Creation', () => {
+        it('should create ECSRoom with World and Scene', async () => {
+            env.server.define('ecs-test', TestECSRoom)
+
+            const client = await env.createClient()
+            await client.joinRoom('ecs-test')
+
+            expect(client.roomId).toBeDefined()
+        })
+
+        it('should have World managed by Core.worldManager', async () => {
+            env.server.define('ecs-test', TestECSRoom)
+
+            const client = await env.createClient()
+            await client.joinRoom('ecs-test')
+
+            // 验证 World 正常创建（通过消息通信验证）
+            const pongPromise = client.waitForRoomMessage<{ timestamp: number }>('Pong')
+            client.sendToRoom('Ping', {})
+            const pong = await pongPromise
+
+            expect(pong.timestamp).toBeGreaterThan(0)
+        })
+    })
+
+    // ========================================================================
+    // Player Entity Management | 玩家实体管理
+    // ========================================================================
+
+    describe('Player Entity Management', () => {
+        it('should create player entity on join', async () => {
+            env.server.define('ecs-test', TestECSRoom)
+
+            const client1 = await env.createClient()
+            const { roomId } = await client1.joinRoom('ecs-test')
+
+            // 等待第二个玩家加入时收到广播
+            const joinPromise = client1.waitForRoomMessage<{ playerId: string; name: string }>(
+                'PlayerJoined'
+            )
+
+            const client2 = await env.createClient()
+            await client2.joinRoomById(roomId)
+
+            const joinMsg = await joinPromise
+            expect(joinMsg.playerId).toBe(client2.playerId)
+            expect(joinMsg.name).toContain('Player_')
+        })
+
+        it('should destroy player entity on leave', async () => {
+            env.server.define('ecs-test', TestECSRoom)
+
+            const client1 = await env.createClient()
+            const { roomId } = await client1.joinRoom('ecs-test')
+
+            const client2 = await env.createClient()
+            await client2.joinRoomById(roomId)
+
+            const leavePromise = client1.waitForRoomMessage<{ playerId: string }>('PlayerLeft')
+
+            await client2.leaveRoom()
+
+            const leaveMsg = await leavePromise
+            expect(leaveMsg.playerId).toBeDefined()
+        })
+    })
+
+    // ========================================================================
+    // Component Sync | 组件同步
+    // ========================================================================
+
+    describe('Component State Updates', () => {
+        it('should update component via message handler', async () => {
+            env.server.define('ecs-test', TestECSRoom)
+
+            const client = await env.createClient()
+            await client.joinRoom('ecs-test')
+
+            client.sendToRoom('Move', { x: 100, y: 200 })
+
+            // 等待处理
+            await wait(50)
+
+            // 验证 Ping/Pong 仍能工作（房间仍活跃）
+            const pongPromise = client.waitForRoomMessage<{ timestamp: number }>('Pong')
+            client.sendToRoom('Ping', {})
+            const pong = await pongPromise
+
+            expect(pong.timestamp).toBeGreaterThan(0)
+        })
+
+        it('should handle AddScore message', async () => {
+            env.server.define('ecs-test', TestECSRoom)
+
+            const client = await env.createClient()
+            await client.joinRoom('ecs-test')
+
+            client.sendToRoom('AddScore', { amount: 50 })
+            client.sendToRoom('AddScore', { amount: 25 })
+
+            await wait(50)
+
+            // 确认房间仍然活跃
+            const pongPromise = client.waitForRoomMessage<{ timestamp: number }>('Pong')
+            client.sendToRoom('Ping', {})
+            await pongPromise
+        })
+    })
+
+    // ========================================================================
+    // Sync Broadcast | 同步广播
+    // ========================================================================
+
+    describe('State Sync Broadcast', () => {
+        it('should receive $sync messages when enabled', async () => {
+            env.server.define('ecs-test', TestECSRoom)
+
+            const client = await env.createClient()
+            await client.joinRoom('ecs-test')
+
+            // 触发状态变更
+            client.sendToRoom('Move', { x: 50, y: 75 })
+
+            // 等待 tick 处理
+            await wait(200)
+
+            // 检查是否收到 $sync 消息
+            const hasSync = client.hasReceivedMessage('RoomMessage')
+            expect(hasSync).toBe(true)
+        })
+    })
+
+    // ========================================================================
+    // Multi-player Sync | 多玩家同步
+    // ========================================================================
+
+    describe('Multi-player Scenarios', () => {
+        it('should handle multiple players in same room', async () => {
+            env.server.define('ecs-test', TestECSRoom)
+
+            const client1 = await env.createClient()
+            const { roomId } = await client1.joinRoom('ecs-test')
+
+            const client2 = await env.createClient()
+            const joinPromise = client1.waitForRoomMessage<{ playerId: string }>('PlayerJoined')
+            await client2.joinRoomById(roomId)
+
+            const joinMsg = await joinPromise
+            expect(joinMsg.playerId).toBe(client2.playerId)
+        })
+
+        it('should broadcast to all players on state change', async () => {
+            env.server.define('ecs-test', TestECSRoom)
+
+            const client1 = await env.createClient()
+            const { roomId } = await client1.joinRoom('ecs-test')
+
+            const client2 = await env.createClient()
+
+            // client1 等待收到 client2 加入的广播
+            const joinPromise = client1.waitForRoomMessage<{ playerId: string }>('PlayerJoined')
+
+            await client2.joinRoomById(roomId)
+
+            const joinMsg = await joinPromise
+            expect(joinMsg.playerId).toBe(client2.playerId)
+
+            // 验证每个客户端都能独立通信
+            const pong1Promise = client1.waitForRoomMessage<{ timestamp: number }>('Pong')
+            client1.sendToRoom('Ping', {})
+            const pong1 = await pong1Promise
+            expect(pong1.timestamp).toBeGreaterThan(0)
+
+            const pong2Promise = client2.waitForRoomMessage<{ timestamp: number }>('Pong')
+            client2.sendToRoom('Ping', {})
+            const pong2 = await pong2Promise
+            expect(pong2.timestamp).toBeGreaterThan(0)
+        })
+    })
+
+    // ========================================================================
+    // Cleanup | 清理
+    // ========================================================================
+
+    describe('Room Cleanup', () => {
+        it('should cleanup World on dispose', async () => {
+            env.server.define('ecs-test', TestECSRoom)
+
+            const client = await env.createClient()
+            await client.joinRoom('ecs-test')
+
+            await client.leaveRoom()
+
+            // 等待自动销毁
+            await wait(100)
+
+            // 房间应该已销毁
+            expect(client.roomId).toBeNull()
+        })
+    })
+})

packages/framework/server/src/ecs/ECSRoom.ts

@@ -0,0 +1,345 @@
+/**
+ * @zh ECS 房间基类
+ * @en ECS Room base class
+ */
+
+import {
+    Core,
+    Scene,
+    World,
+    Entity,
+    EntitySystem,
+    type Component,
+    // Sync
+    SyncOperation,
+    SYNC_METADATA,
+    CHANGE_TRACKER,
+    type SyncMetadata,
+    type ChangeTracker,
+    encodeSnapshot,
+    encodeSpawn,
+    encodeDespawn,
+    initChangeTracker,
+} from '@esengine/ecs-framework';
+
+import { Room, type RoomOptions } from '../room/Room.js';
+import type { Player } from '../room/Player.js';
+
+// =============================================================================
+// Types | 类型定义
+// =============================================================================
+
+/**
+ * @zh ECS 房间配置
+ * @en ECS room configuration
+ */
+export interface ECSRoomConfig {
+    /**
+     * @zh 状态同步间隔（毫秒）
+     * @en State sync interval in milliseconds
+     */
+    syncInterval: number;
+
+    /**
+     * @zh 是否启用增量同步
+     * @en Whether to enable delta sync
+     */
+    enableDeltaSync: boolean;
+}
+
+const DEFAULT_ECS_CONFIG: ECSRoomConfig = {
+    syncInterval: 50, // 20 Hz
+    enableDeltaSync: true,
+};
+
+/**
+ * @zh 网络实体标识组件
+ * @en Network entity identity component
+ */
+const NETWORK_ENTITY_OWNER = Symbol('NetworkEntityOwner');
+
+// =============================================================================
+// ECSRoom | ECS 房间
+// =============================================================================
+
+/**
+ * @zh ECS 房间基类，带有 ECS World 支持和自动状态同步
+ * @en ECS Room base class with ECS World support and automatic state synchronization
+ *
+ * @example
+ * ```typescript
+ * // 服务端启动
+ * Core.create();
+ * setInterval(() => Core.update(1/60), 16);
+ *
+ * // 定义房间
+ * class GameRoom extends ECSRoom {
+ *     onCreate() {
+ *         this.addSystem(new PhysicsSystem());
+ *     }
+ *
+ *     onJoin(player: Player) {
+ *         const entity = this.createPlayerEntity(player.id);
+ *         entity.addComponent(new PlayerComponent());
+ *     }
+ * }
+ * ```
+ */
+export abstract class ECSRoom<TState = any, TPlayerData = Record<string, unknown>> extends Room<TState, TPlayerData> {
+    /**
+     * @zh ECS World（由 Core.worldManager 管理）
+     * @en ECS World (managed by Core.worldManager)
+     */
+    protected readonly world: World;
+
+    /**
+     * @zh World 在 WorldManager 中的 ID
+     * @en World ID in WorldManager
+     */
+    protected readonly worldId: string;
+
+    /**
+     * @zh 房间的主场景
+     * @en Room's main scene
+     */
+    protected readonly scene: Scene;
+
+    /**
+     * @zh ECS 配置
+     * @en ECS configuration
+     */
+    protected readonly ecsConfig: ECSRoomConfig;
+
+    /**
+     * @zh 玩家 ID 到实体的映射
+     * @en Player ID to Entity mapping
+     */
+    private readonly _playerEntities: Map<string, Entity> = new Map();
+
+    /**
+     * @zh 上次同步时间
+     * @en Last sync time
+     */
+    private _lastSyncTime: number = 0;
+
+    constructor(ecsConfig?: Partial<ECSRoomConfig>) {
+        super();
+        this.ecsConfig = { ...DEFAULT_ECS_CONFIG, ...ecsConfig };
+
+        this.worldId = `room_${Date.now()}_${Math.random().toString(36).slice(2, 8)}`;
+        this.world = Core.worldManager.createWorld(this.worldId);
+        this.scene = this.world.createScene('game');
+        this.world.setSceneActive('game', true);
+        this.world.start();
+    }
+
+    // =========================================================================
+    // Scene Management | 场景管理
+    // =========================================================================
+
+    /**
+     * @zh 添加系统到场景
+     * @en Add system to scene
+     */
+    protected addSystem(system: EntitySystem): void {
+        this.scene.addSystem(system);
+    }
+
+    /**
+     * @zh 创建实体
+     * @en Create entity
+     */
+    protected createEntity(name?: string): Entity {
+        return this.scene.createEntity(name ?? `entity_${Date.now()}`);
+    }
+
+    /**
+     * @zh 为玩家创建实体
+     * @en Create entity for player
+     *
+     * @param playerId - @zh 玩家 ID @en Player ID
+     * @param name - @zh 实体名称 @en Entity name
+     * @returns @zh 创建的实体 @en Created entity
+     */
+    protected createPlayerEntity(playerId: string, name?: string): Entity {
+        const entityName = name ?? `player_${playerId}`;
+        const entity = this.scene.createEntity(entityName);
+        (entity as any)[NETWORK_ENTITY_OWNER] = playerId;
+        this._playerEntities.set(playerId, entity);
+        return entity;
+    }
+
+    /**
+     * @zh 获取玩家的实体
+     * @en Get player's entity
+     */
+    protected getPlayerEntity(playerId: string): Entity | undefined {
+        return this._playerEntities.get(playerId);
+    }
+
+    /**
+     * @zh 销毁玩家的实体
+     * @en Destroy player's entity
+     */
+    protected destroyPlayerEntity(playerId: string): void {
+        const entity = this._playerEntities.get(playerId);
+        if (entity) {
+            const despawnData = encodeDespawn(entity.id);
+            this.broadcastBinary(despawnData);
+            entity.destroy();
+            this._playerEntities.delete(playerId);
+        }
+    }
+
+    // =========================================================================
+    // State Sync | 状态同步
+    // =========================================================================
+
+    /**
+     * @zh 广播二进制数据
+     * @en Broadcast binary data
+     */
+    protected broadcastBinary(data: Uint8Array): void {
+        for (const player of this.players) {
+            this.sendBinary(player, data);
+        }
+    }
+
+    /**
+     * @zh 发送二进制数据给指定玩家
+     * @en Send binary data to specific player
+     */
+    protected sendBinary(player: Player<TPlayerData>, data: Uint8Array): void {
+        player.send('$sync', { data: Array.from(data) });
+    }
+
+    /**
+     * @zh 发送完整状态给玩家（用于玩家刚加入时）
+     * @en Send full state to player (for when player just joined)
+     */
+    protected sendFullState(player: Player<TPlayerData>): void {
+        const entities = this._getSyncEntities();
+        if (entities.length === 0) return;
+
+        for (const entity of entities) {
+            this._initComponentTrackers(entity);
+        }
+
+        const data = encodeSnapshot(entities, SyncOperation.FULL);
+        this.sendBinary(player, data);
+    }
+
+    /**
+     * @zh 广播实体生成
+     * @en Broadcast entity spawn
+     */
+    protected broadcastSpawn(entity: Entity, prefabType?: string): void {
+        this._initComponentTrackers(entity);
+        const data = encodeSpawn(entity, prefabType);
+        this.broadcastBinary(data);
+    }
+
+    /**
+     * @zh 广播增量状态更新
+     * @en Broadcast delta state update
+     */
+    protected broadcastDelta(): void {
+        const entities = this._getSyncEntities();
+        const changedEntities = entities.filter(entity => this._hasChanges(entity));
+
+        if (changedEntities.length === 0) return;
+
+        const data = encodeSnapshot(changedEntities, SyncOperation.DELTA);
+        this.broadcastBinary(data);
+        this._clearChangeTrackers(changedEntities);
+    }
+
+    // =========================================================================
+    // Lifecycle Overrides | 生命周期重载
+    // =========================================================================
+
+    /**
+     * @zh 游戏循环，处理状态同步
+     * @en Game tick, handles state sync
+     */
+    override onTick(_dt: number): void {
+        if (this.ecsConfig.enableDeltaSync) {
+            const now = Date.now();
+            if (now - this._lastSyncTime >= this.ecsConfig.syncInterval) {
+                this._lastSyncTime = now;
+                this.broadcastDelta();
+            }
+        }
+    }
+
+    /**
+     * @zh 玩家离开时自动销毁其实体
+     * @en Auto destroy player entity when leaving
+     */
+    override async onLeave(player: Player<TPlayerData>, reason?: string): Promise<void> {
+        this.destroyPlayerEntity(player.id);
+    }
+
+    /**
+     * @zh 房间销毁时从 WorldManager 移除 World
+     * @en Remove World from WorldManager when room is disposed
+     */
+    override onDispose(): void {
+        this._playerEntities.clear();
+        Core.worldManager.removeWorld(this.worldId);
+    }
+
+    // =========================================================================
+    // Internal | 内部方法
+    // =========================================================================
+
+    private _getSyncEntities(): Entity[] {
+        const entities: Entity[] = [];
+        for (const entity of this.scene.entities.buffer) {
+            if (this._hasSyncComponents(entity)) {
+                entities.push(entity);
+            }
+        }
+        return entities;
+    }
+
+    private _hasSyncComponents(entity: Entity): boolean {
+        for (const component of entity.components) {
+            const metadata: SyncMetadata | undefined = (component.constructor as any)[SYNC_METADATA];
+            if (metadata && metadata.fields.length > 0) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private _hasChanges(entity: Entity): boolean {
+        for (const component of entity.components) {
+            const tracker = (component as any)[CHANGE_TRACKER] as ChangeTracker | undefined;
+            if (tracker?.hasChanges()) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private _initComponentTrackers(entity: Entity): void {
+        for (const component of entity.components) {
+            const metadata: SyncMetadata | undefined = (component.constructor as any)[SYNC_METADATA];
+            if (metadata && metadata.fields.length > 0) {
+                initChangeTracker(component);
+            }
+        }
+    }
+
+    private _clearChangeTrackers(entities: Entity[]): void {
+        for (const entity of entities) {
+            for (const component of entity.components) {
+                const tracker = (component as any)[CHANGE_TRACKER] as ChangeTracker | undefined;
+                if (tracker) {
+                    tracker.clear();
+                }
+            }
+        }
+    }
+}

packages/framework/server/src/ecs/index.ts

@@ -0,0 +1,62 @@
+/**
+ * @zh @esengine/server ECS 集成模块
+ * @en @esengine/server ECS integration module
+ *
+ * @zh 提供带 ECS World 的房间类，支持基于 @sync 装饰器的自动状态同步
+ * @en Provides Room class with ECS World, supports automatic state sync based on @sync decorator
+ *
+ * @example
+ * ```typescript
+ * import { ECSRoom } from '@esengine/server/ecs';
+ * import { Component, ECSComponent, sync } from '@esengine/ecs-framework';
+ *
+ * @ECSComponent('Player')
+ * class PlayerComponent extends Component {
+ *     @sync("string") name: string = "";
+ *     @sync("uint16") score: number = 0;
+ * }
+ *
+ * class GameRoom extends ECSRoom {
+ *     onCreate() {
+ *         this.addSystem(new MovementSystem());
+ *     }
+ *
+ *     onJoin(player: Player) {
+ *         const entity = this.createPlayerEntity(player.id);
+ *         entity.addComponent(new PlayerComponent());
+ *     }
+ * }
+ * ```
+ */
+
+export { ECSRoom } from './ECSRoom.js';
+export type { ECSRoomConfig } from './ECSRoom.js';
+
+// Re-export Player for convenience
+export { Player, type IPlayer } from '../room/Player.js';
+
+// Re-export commonly used ECS types for convenience
+export type {
+    Entity,
+    Component,
+    EntitySystem,
+    Scene,
+    World,
+} from '@esengine/ecs-framework';
+
+// Re-export sync types
+export {
+    sync,
+    getSyncMetadata,
+    hasSyncFields,
+    initChangeTracker,
+    clearChanges,
+    hasChanges,
+    SyncOperation,
+    type SyncType,
+    type SyncFieldMetadata,
+    type SyncMetadata,
+} from '@esengine/ecs-framework';
+
+// Re-export room decorators
+export { onMessage } from '../room/decorators.js';

packages/framework/server/src/ratelimit/__tests__/context.test.ts

@@ -0,0 +1,142 @@
+import { describe, it, expect, beforeEach } from 'vitest';
+import { RateLimitContext } from '../context';
+import { TokenBucketStrategy } from '../strategies/TokenBucket';
+import { FixedWindowStrategy } from '../strategies/FixedWindow';
+
+describe('RateLimitContext', () => {
+    let globalStrategy: TokenBucketStrategy;
+    let context: RateLimitContext;
+
+    beforeEach(() => {
+        globalStrategy = new TokenBucketStrategy({
+            rate: 10,
+            capacity: 20
+        });
+        context = new RateLimitContext('player-123', globalStrategy);
+    });
+
+    describe('check', () => {
+        it('should check without consuming', () => {
+            const result1 = context.check();
+            const result2 = context.check();
+
+            expect(result1.remaining).toBe(result2.remaining);
+        });
+
+        it('should use global strategy by default', () => {
+            const result = context.check();
+            expect(result.allowed).toBe(true);
+            expect(result.remaining).toBe(20);
+        });
+    });
+
+    describe('consume', () => {
+        it('should consume from global strategy', () => {
+            const result = context.consume();
+            expect(result.allowed).toBe(true);
+            expect(result.remaining).toBe(19);
+        });
+
+        it('should track consecutive limits', () => {
+            for (let i = 0; i < 25; i++) {
+                context.consume();
+            }
+
+            expect(context.consecutiveLimitCount).toBeGreaterThan(0);
+        });
+
+        it('should reset consecutive count on success', () => {
+            // Consume all 20 tokens plus some more to trigger rate limiting
+            for (let i = 0; i < 25; i++) {
+                context.consume();
+            }
+
+            // After consuming 25 tokens (20 capacity), 5 should be rate limited
+            expect(context.consecutiveLimitCount).toBeGreaterThan(0);
+
+            context.reset();
+            const result = context.consume();
+
+            expect(result.allowed).toBe(true);
+            expect(context.consecutiveLimitCount).toBe(0);
+        });
+    });
+
+    describe('reset', () => {
+        it('should reset global strategy', () => {
+            for (let i = 0; i < 15; i++) {
+                context.consume();
+            }
+
+            context.reset();
+
+            const status = context.check();
+            expect(status.remaining).toBe(20);
+        });
+
+        it('should reset specific message type', () => {
+            const msgStrategy = new FixedWindowStrategy({ rate: 5, capacity: 5 });
+            context.setMessageStrategy('Trade', msgStrategy);
+
+            for (let i = 0; i < 5; i++) {
+                context.consume('Trade');
+            }
+
+            context.reset('Trade');
+
+            const status = context.check('Trade');
+            expect(status.remaining).toBe(5);
+        });
+    });
+
+    describe('message strategies', () => {
+        it('should use message-specific strategy', () => {
+            const tradeStrategy = new FixedWindowStrategy({ rate: 1, capacity: 1 });
+            context.setMessageStrategy('Trade', tradeStrategy);
+
+            const result1 = context.consume('Trade');
+            expect(result1.allowed).toBe(true);
+
+            const result2 = context.consume('Trade');
+            expect(result2.allowed).toBe(false);
+        });
+
+        it('should fall back to global strategy for unknown types', () => {
+            const result = context.consume('UnknownType');
+            expect(result.allowed).toBe(true);
+            expect(result.remaining).toBe(19);
+        });
+
+        it('should check if message strategy exists', () => {
+            expect(context.hasMessageStrategy('Trade')).toBe(false);
+
+            const tradeStrategy = new FixedWindowStrategy({ rate: 1, capacity: 1 });
+            context.setMessageStrategy('Trade', tradeStrategy);
+
+            expect(context.hasMessageStrategy('Trade')).toBe(true);
+        });
+
+        it('should remove message strategy', () => {
+            const tradeStrategy = new FixedWindowStrategy({ rate: 1, capacity: 1 });
+            context.setMessageStrategy('Trade', tradeStrategy);
+
+            context.removeMessageStrategy('Trade');
+
+            expect(context.hasMessageStrategy('Trade')).toBe(false);
+        });
+    });
+
+    describe('resetConsecutiveCount', () => {
+        it('should reset consecutive limit count', () => {
+            for (let i = 0; i < 25; i++) {
+                context.consume();
+            }
+
+            expect(context.consecutiveLimitCount).toBeGreaterThan(0);
+
+            context.resetConsecutiveCount();
+
+            expect(context.consecutiveLimitCount).toBe(0);
+        });
+    });
+});

packages/framework/server/src/ratelimit/__tests__/decorators.test.ts

@@ -0,0 +1,185 @@
+import { describe, it, expect, beforeEach } from 'vitest';
+import {
+    rateLimit,
+    noRateLimit,
+    rateLimitMessage,
+    noRateLimitMessage,
+    getRateLimitMetadata,
+    RATE_LIMIT_METADATA_KEY
+} from '../decorators/rateLimit';
+
+describe('rateLimitMessage decorator', () => {
+    class TestClass {
+        @rateLimitMessage('Trade', { messagesPerSecond: 1, burstSize: 2 })
+        handleTrade() {
+            return 'trade';
+        }
+
+        @rateLimitMessage('Move', { cost: 2 })
+        handleMove() {
+            return 'move';
+        }
+
+        undecorated() {
+            return 'undecorated';
+        }
+    }
+
+    describe('metadata storage', () => {
+        it('should store rate limit metadata on target', () => {
+            const metadata = getRateLimitMetadata(TestClass.prototype, 'Trade');
+            expect(metadata).toBeDefined();
+            expect(metadata?.enabled).toBe(true);
+        });
+
+        it('should store config in metadata', () => {
+            const metadata = getRateLimitMetadata(TestClass.prototype, 'Trade');
+            expect(metadata?.config?.messagesPerSecond).toBe(1);
+            expect(metadata?.config?.burstSize).toBe(2);
+        });
+
+        it('should store cost in metadata', () => {
+            const metadata = getRateLimitMetadata(TestClass.prototype, 'Move');
+            expect(metadata?.config?.cost).toBe(2);
+        });
+
+        it('should return undefined for unregistered message types', () => {
+            const metadata = getRateLimitMetadata(TestClass.prototype, 'Unknown');
+            expect(metadata).toBeUndefined();
+        });
+    });
+
+    describe('method behavior', () => {
+        it('should not alter method behavior', () => {
+            const instance = new TestClass();
+            expect(instance.handleTrade()).toBe('trade');
+            expect(instance.handleMove()).toBe('move');
+        });
+    });
+});
+
+describe('noRateLimitMessage decorator', () => {
+    class TestClass {
+        @noRateLimitMessage('Heartbeat')
+        handleHeartbeat() {
+            return 'heartbeat';
+        }
+
+        @noRateLimitMessage('Ping')
+        handlePing() {
+            return 'ping';
+        }
+    }
+
+    describe('metadata storage', () => {
+        it('should mark message as exempt', () => {
+            const metadata = getRateLimitMetadata(TestClass.prototype, 'Heartbeat');
+            expect(metadata?.exempt).toBe(true);
+            expect(metadata?.enabled).toBe(false);
+        });
+
+        it('should store for multiple messages', () => {
+            const heartbeatMeta = getRateLimitMetadata(TestClass.prototype, 'Heartbeat');
+            const pingMeta = getRateLimitMetadata(TestClass.prototype, 'Ping');
+
+            expect(heartbeatMeta?.exempt).toBe(true);
+            expect(pingMeta?.exempt).toBe(true);
+        });
+    });
+
+    describe('method behavior', () => {
+        it('should not alter method behavior', () => {
+            const instance = new TestClass();
+            expect(instance.handleHeartbeat()).toBe('heartbeat');
+            expect(instance.handlePing()).toBe('ping');
+        });
+    });
+});
+
+describe('combined decorators', () => {
+    class CombinedTestClass {
+        @rateLimitMessage('SlowAction', { messagesPerSecond: 1 })
+        handleSlow() {
+            return 'slow';
+        }
+
+        @noRateLimitMessage('FastAction')
+        handleFast() {
+            return 'fast';
+        }
+
+        @rateLimitMessage('ExpensiveAction', { cost: 10 })
+        handleExpensive() {
+            return 'expensive';
+        }
+    }
+
+    it('should handle multiple different decorators', () => {
+        const slowMeta = getRateLimitMetadata(CombinedTestClass.prototype, 'SlowAction');
+        const fastMeta = getRateLimitMetadata(CombinedTestClass.prototype, 'FastAction');
+        const expensiveMeta = getRateLimitMetadata(CombinedTestClass.prototype, 'ExpensiveAction');
+
+        expect(slowMeta?.enabled).toBe(true);
+        expect(slowMeta?.config?.messagesPerSecond).toBe(1);
+
+        expect(fastMeta?.exempt).toBe(true);
+        expect(fastMeta?.enabled).toBe(false);
+
+        expect(expensiveMeta?.enabled).toBe(true);
+        expect(expensiveMeta?.config?.cost).toBe(10);
+    });
+});
+
+describe('RATE_LIMIT_METADATA_KEY', () => {
+    it('should be a symbol', () => {
+        expect(typeof RATE_LIMIT_METADATA_KEY).toBe('symbol');
+    });
+
+    it('should be used for metadata storage', () => {
+        class TestClass {
+            @rateLimitMessage('Test', {})
+            handleTest() {}
+        }
+
+        const metadataMap = (TestClass.prototype as any)[RATE_LIMIT_METADATA_KEY];
+        expect(metadataMap).toBeInstanceOf(Map);
+    });
+});
+
+describe('rateLimit decorator (auto-detect)', () => {
+    it('should be a decorator function', () => {
+        expect(typeof rateLimit).toBe('function');
+        expect(typeof rateLimit()).toBe('function');
+    });
+
+    it('should accept config', () => {
+        class TestClass {
+            @rateLimit({ messagesPerSecond: 5 })
+            someMethod() {
+                return 'test';
+            }
+        }
+
+        const instance = new TestClass();
+        expect(instance.someMethod()).toBe('test');
+    });
+});
+
+describe('noRateLimit decorator (auto-detect)', () => {
+    it('should be a decorator function', () => {
+        expect(typeof noRateLimit).toBe('function');
+        expect(typeof noRateLimit()).toBe('function');
+    });
+
+    it('should work as decorator', () => {
+        class TestClass {
+            @noRateLimit()
+            someMethod() {
+                return 'test';
+            }
+        }
+
+        const instance = new TestClass();
+        expect(instance.someMethod()).toBe('test');
+    });
+});

packages/framework/server/src/ratelimit/__tests__/mixin.test.ts

@@ -0,0 +1,157 @@
+import { describe, it, expect, beforeEach, vi } from 'vitest';
+import { Room } from '../../room/Room';
+import { Player } from '../../room/Player';
+import { withRateLimit, getPlayerRateLimitContext } from '../mixin/withRateLimit';
+import { noRateLimitMessage, rateLimitMessage } from '../decorators/rateLimit';
+import { onMessage } from '../../room/decorators';
+
+describe('withRateLimit mixin', () => {
+    let RateLimitedRoom: ReturnType<typeof withRateLimit>;
+
+    beforeEach(() => {
+        RateLimitedRoom = withRateLimit(Room, {
+            messagesPerSecond: 10,
+            burstSize: 20
+        });
+    });
+
+    describe('basic functionality', () => {
+        it('should create a rate limited room class', () => {
+            expect(RateLimitedRoom).toBeDefined();
+        });
+
+        it('should have rateLimitStrategy property', () => {
+            class TestRoom extends RateLimitedRoom {
+                onCreate() {}
+            }
+
+            const room = new TestRoom();
+            expect(room.rateLimitStrategy).toBeDefined();
+            expect(room.rateLimitStrategy.name).toBe('token-bucket');
+        });
+    });
+
+    describe('strategy selection', () => {
+        it('should use token-bucket by default', () => {
+            class TestRoom extends withRateLimit(Room) {
+                onCreate() {}
+            }
+
+            const room = new TestRoom();
+            expect(room.rateLimitStrategy.name).toBe('token-bucket');
+        });
+
+        it('should use sliding-window when specified', () => {
+            class TestRoom extends withRateLimit(Room, { strategy: 'sliding-window' }) {
+                onCreate() {}
+            }
+
+            const room = new TestRoom();
+            expect(room.rateLimitStrategy.name).toBe('sliding-window');
+        });
+
+        it('should use fixed-window when specified', () => {
+            class TestRoom extends withRateLimit(Room, { strategy: 'fixed-window' }) {
+                onCreate() {}
+            }
+
+            const room = new TestRoom();
+            expect(room.rateLimitStrategy.name).toBe('fixed-window');
+        });
+    });
+
+    describe('configuration', () => {
+        it('should use default values', () => {
+            class TestRoom extends withRateLimit(Room) {
+                onCreate() {}
+            }
+
+            const room = new TestRoom();
+            expect(room.rateLimitStrategy).toBeDefined();
+        });
+
+        it('should accept custom messagesPerSecond', () => {
+            class TestRoom extends withRateLimit(Room, { messagesPerSecond: 5 }) {
+                onCreate() {}
+            }
+
+            const room = new TestRoom();
+            expect(room.rateLimitStrategy).toBeDefined();
+        });
+
+        it('should accept custom burstSize', () => {
+            class TestRoom extends withRateLimit(Room, { burstSize: 50 }) {
+                onCreate() {}
+            }
+
+            const room = new TestRoom();
+            expect(room.rateLimitStrategy).toBeDefined();
+        });
+    });
+
+    describe('dispose', () => {
+        it('should clean up on dispose', () => {
+            class TestRoom extends RateLimitedRoom {
+                onCreate() {}
+            }
+
+            const room = new TestRoom();
+            room._init({
+                id: 'test-room',
+                sendFn: vi.fn(),
+                broadcastFn: vi.fn(),
+                disposeFn: vi.fn()
+            });
+
+            expect(() => room.dispose()).not.toThrow();
+        });
+    });
+});
+
+describe('withRateLimit with auth', () => {
+    it('should be composable with other mixins', () => {
+        class TestRoom extends withRateLimit(Room, { messagesPerSecond: 10 }) {
+            onCreate() {}
+        }
+
+        const room = new TestRoom();
+        expect(room.rateLimitStrategy).toBeDefined();
+    });
+});
+
+describe('getPlayerRateLimitContext', () => {
+    it('should return null for player without context', () => {
+        const mockPlayer = {
+            id: 'player-1',
+            roomId: 'room-1',
+            data: {},
+            send: vi.fn(),
+            leave: vi.fn()
+        } as unknown as Player;
+
+        const context = getPlayerRateLimitContext(mockPlayer);
+        expect(context).toBeNull();
+    });
+});
+
+describe('decorator metadata', () => {
+    it('rateLimitMessage should set metadata', () => {
+        class TestRoom extends withRateLimit(Room) {
+            @rateLimitMessage('Trade', { messagesPerSecond: 1 })
+            @onMessage('Trade')
+            handleTrade() {}
+        }
+
+        expect(TestRoom).toBeDefined();
+    });
+
+    it('noRateLimitMessage should set exempt metadata', () => {
+        class TestRoom extends withRateLimit(Room) {
+            @noRateLimitMessage('Heartbeat')
+            @onMessage('Heartbeat')
+            handleHeartbeat() {}
+        }
+
+        expect(TestRoom).toBeDefined();
+    });
+});

packages/framework/server/src/ratelimit/__tests__/strategies.test.ts

@@ -0,0 +1,249 @@
+import { describe, it, expect, beforeEach, vi, afterEach } from 'vitest';
+import { TokenBucketStrategy, createTokenBucketStrategy } from '../strategies/TokenBucket';
+import { SlidingWindowStrategy, createSlidingWindowStrategy } from '../strategies/SlidingWindow';
+import { FixedWindowStrategy, createFixedWindowStrategy } from '../strategies/FixedWindow';
+
+describe('TokenBucketStrategy', () => {
+    let strategy: TokenBucketStrategy;
+
+    beforeEach(() => {
+        strategy = createTokenBucketStrategy({
+            rate: 10,
+            capacity: 20
+        });
+    });
+
+    describe('consume', () => {
+        it('should allow requests when tokens available', () => {
+            const result = strategy.consume('user-1');
+            expect(result.allowed).toBe(true);
+            expect(result.remaining).toBe(19);
+        });
+
+        it('should consume multiple tokens', () => {
+            const result = strategy.consume('user-1', 5);
+            expect(result.allowed).toBe(true);
+            expect(result.remaining).toBe(15);
+        });
+
+        it('should deny when not enough tokens', () => {
+            for (let i = 0; i < 20; i++) {
+                strategy.consume('user-1');
+            }
+
+            const result = strategy.consume('user-1');
+            expect(result.allowed).toBe(false);
+            expect(result.remaining).toBe(0);
+            expect(result.retryAfter).toBeGreaterThan(0);
+        });
+
+        it('should refill tokens over time', async () => {
+            for (let i = 0; i < 20; i++) {
+                strategy.consume('user-1');
+            }
+
+            await new Promise(resolve => setTimeout(resolve, 150));
+
+            const result = strategy.consume('user-1');
+            expect(result.allowed).toBe(true);
+        });
+
+        it('should handle different keys independently', () => {
+            for (let i = 0; i < 20; i++) {
+                strategy.consume('user-1');
+            }
+
+            const result1 = strategy.consume('user-1');
+            const result2 = strategy.consume('user-2');
+
+            expect(result1.allowed).toBe(false);
+            expect(result2.allowed).toBe(true);
+        });
+    });
+
+    describe('getStatus', () => {
+        it('should return full capacity for new key', () => {
+            const status = strategy.getStatus('new-user');
+            expect(status.remaining).toBe(20);
+            expect(status.allowed).toBe(true);
+        });
+
+        it('should not consume tokens', () => {
+            strategy.getStatus('user-1');
+            const status = strategy.getStatus('user-1');
+            expect(status.remaining).toBe(20);
+        });
+    });
+
+    describe('reset', () => {
+        it('should reset key to full capacity', () => {
+            for (let i = 0; i < 15; i++) {
+                strategy.consume('user-1');
+            }
+
+            strategy.reset('user-1');
+
+            const status = strategy.getStatus('user-1');
+            expect(status.remaining).toBe(20);
+        });
+    });
+
+    describe('cleanup', () => {
+        it('should clean up full buckets', async () => {
+            strategy.consume('user-1');
+
+            await new Promise(resolve => setTimeout(resolve, 100));
+
+            strategy.cleanup();
+        });
+    });
+});
+
+describe('SlidingWindowStrategy', () => {
+    let strategy: SlidingWindowStrategy;
+
+    beforeEach(() => {
+        strategy = createSlidingWindowStrategy({
+            rate: 10,
+            capacity: 10
+        });
+    });
+
+    describe('consume', () => {
+        it('should allow requests within capacity', () => {
+            const result = strategy.consume('user-1');
+            expect(result.allowed).toBe(true);
+            expect(result.remaining).toBe(9);
+        });
+
+        it('should deny when capacity exceeded', () => {
+            for (let i = 0; i < 10; i++) {
+                strategy.consume('user-1');
+            }
+
+            const result = strategy.consume('user-1');
+            expect(result.allowed).toBe(false);
+            expect(result.remaining).toBe(0);
+        });
+
+        it('should allow after window expires', async () => {
+            for (let i = 0; i < 10; i++) {
+                strategy.consume('user-1');
+            }
+
+            await new Promise(resolve => setTimeout(resolve, 1100));
+
+            const result = strategy.consume('user-1');
+            expect(result.allowed).toBe(true);
+        });
+    });
+
+    describe('getStatus', () => {
+        it('should return full capacity for new key', () => {
+            const status = strategy.getStatus('new-user');
+            expect(status.remaining).toBe(10);
+            expect(status.allowed).toBe(true);
+        });
+    });
+
+    describe('reset', () => {
+        it('should clear timestamps', () => {
+            for (let i = 0; i < 5; i++) {
+                strategy.consume('user-1');
+            }
+
+            strategy.reset('user-1');
+
+            const status = strategy.getStatus('user-1');
+            expect(status.remaining).toBe(10);
+        });
+    });
+});
+
+describe('FixedWindowStrategy', () => {
+    let strategy: FixedWindowStrategy;
+
+    beforeEach(() => {
+        strategy = createFixedWindowStrategy({
+            rate: 10,
+            capacity: 10
+        });
+    });
+
+    describe('consume', () => {
+        it('should allow requests within capacity', () => {
+            const result = strategy.consume('user-1');
+            expect(result.allowed).toBe(true);
+            expect(result.remaining).toBe(9);
+        });
+
+        it('should deny when capacity exceeded', () => {
+            for (let i = 0; i < 10; i++) {
+                strategy.consume('user-1');
+            }
+
+            const result = strategy.consume('user-1');
+            expect(result.allowed).toBe(false);
+            expect(result.retryAfter).toBeGreaterThanOrEqual(0);
+        });
+
+        it('should reset at window boundary', async () => {
+            for (let i = 0; i < 10; i++) {
+                strategy.consume('user-1');
+            }
+
+            await new Promise(resolve => setTimeout(resolve, 1100));
+
+            const result = strategy.consume('user-1');
+            expect(result.allowed).toBe(true);
+            expect(result.remaining).toBe(9);
+        });
+    });
+
+    describe('getStatus', () => {
+        it('should return full capacity for new key', () => {
+            const status = strategy.getStatus('new-user');
+            expect(status.remaining).toBe(10);
+        });
+    });
+
+    describe('reset', () => {
+        it('should reset count', () => {
+            for (let i = 0; i < 5; i++) {
+                strategy.consume('user-1');
+            }
+
+            strategy.reset('user-1');
+
+            const status = strategy.getStatus('user-1');
+            expect(status.remaining).toBe(10);
+        });
+    });
+
+    describe('cleanup', () => {
+        it('should clean up old windows', async () => {
+            strategy.consume('user-1');
+
+            await new Promise(resolve => setTimeout(resolve, 2100));
+
+            strategy.cleanup();
+        });
+    });
+});
+
+describe('Factory functions', () => {
+    it('createTokenBucketStrategy should create TokenBucketStrategy', () => {
+        const strategy = createTokenBucketStrategy({ rate: 5, capacity: 10 });
+        expect(strategy.name).toBe('token-bucket');
+    });
+
+    it('createSlidingWindowStrategy should create SlidingWindowStrategy', () => {
+        const strategy = createSlidingWindowStrategy({ rate: 5, capacity: 5 });
+        expect(strategy.name).toBe('sliding-window');
+    });
+
+    it('createFixedWindowStrategy should create FixedWindowStrategy', () => {
+        const strategy = createFixedWindowStrategy({ rate: 5, capacity: 5 });
+        expect(strategy.name).toBe('fixed-window');
+    });
+});

packages/framework/server/src/ratelimit/context.ts

@@ -0,0 +1,146 @@
+/**
+ * @zh 速率限制上下文
+ * @en Rate limit context
+ */
+
+import type {
+    IRateLimitContext,
+    IRateLimitStrategy,
+    RateLimitResult,
+    MessageRateLimitConfig
+} from './types.js';
+
+/**
+ * @zh 速率限制上下文
+ * @en Rate limit context
+ *
+ * @zh 管理单个玩家的速率限制状态，支持全局限制和按消息类型限制
+ * @en Manages rate limit status for a single player, supports global and per-message-type limits
+ *
+ * @example
+ * ```typescript
+ * const context = new RateLimitContext('player-123', globalStrategy);
+ *
+ * // Check global rate limit
+ * const result = context.consume();
+ *
+ * // Check per-message rate limit
+ * const tradeResult = context.consume('Trade', 1);
+ * ```
+ */
+export class RateLimitContext implements IRateLimitContext {
+    private _key: string;
+    private _globalStrategy: IRateLimitStrategy;
+    private _messageStrategies: Map<string, IRateLimitStrategy> = new Map();
+    private _consecutiveLimitCount: number = 0;
+
+    /**
+     * @zh 创建速率限制上下文
+     * @en Create rate limit context
+     *
+     * @param key - @zh 限流键（通常是玩家ID）@en Rate limit key (usually player ID)
+     * @param globalStrategy - @zh 全局限流策略 @en Global rate limit strategy
+     */
+    constructor(key: string, globalStrategy: IRateLimitStrategy) {
+        this._key = key;
+        this._globalStrategy = globalStrategy;
+    }
+
+    /**
+     * @zh 获取连续被限流次数
+     * @en Get consecutive limit count
+     */
+    get consecutiveLimitCount(): number {
+        return this._consecutiveLimitCount;
+    }
+
+    /**
+     * @zh 检查是否允许（不消费）
+     * @en Check if allowed (without consuming)
+     */
+    check(messageType?: string): RateLimitResult {
+        if (messageType && this._messageStrategies.has(messageType)) {
+            return this._messageStrategies.get(messageType)!.getStatus(this._key);
+        }
+
+        return this._globalStrategy.getStatus(this._key);
+    }
+
+    /**
+     * @zh 消费配额
+     * @en Consume quota
+     */
+    consume(messageType?: string, cost: number = 1): RateLimitResult {
+        let result: RateLimitResult;
+
+        if (messageType && this._messageStrategies.has(messageType)) {
+            result = this._messageStrategies.get(messageType)!.consume(this._key, cost);
+        } else {
+            result = this._globalStrategy.consume(this._key, cost);
+        }
+
+        if (result.allowed) {
+            this._consecutiveLimitCount = 0;
+        } else {
+            this._consecutiveLimitCount++;
+        }
+
+        return result;
+    }
+
+    /**
+     * @zh 重置限流状态
+     * @en Reset rate limit status
+     */
+    reset(messageType?: string): void {
+        if (messageType) {
+            if (this._messageStrategies.has(messageType)) {
+                this._messageStrategies.get(messageType)!.reset(this._key);
+            }
+        } else {
+            this._globalStrategy.reset(this._key);
+            for (const strategy of this._messageStrategies.values()) {
+                strategy.reset(this._key);
+            }
+        }
+    }
+
+    /**
+     * @zh 重置连续限流计数
+     * @en Reset consecutive limit count
+     */
+    resetConsecutiveCount(): void {
+        this._consecutiveLimitCount = 0;
+    }
+
+    /**
+     * @zh 为特定消息类型设置独立的限流策略
+     * @en Set independent rate limit strategy for specific message type
+     *
+     * @param messageType - @zh 消息类型 @en Message type
+     * @param strategy - @zh 限流策略 @en Rate limit strategy
+     */
+    setMessageStrategy(messageType: string, strategy: IRateLimitStrategy): void {
+        this._messageStrategies.set(messageType, strategy);
+    }
+
+    /**
+     * @zh 移除特定消息类型的限流策略
+     * @en Remove rate limit strategy for specific message type
+     *
+     * @param messageType - @zh 消息类型 @en Message type
+     */
+    removeMessageStrategy(messageType: string): void {
+        this._messageStrategies.delete(messageType);
+    }
+
+    /**
+     * @zh 检查是否有特定消息类型的限流策略
+     * @en Check if has rate limit strategy for specific message type
+     *
+     * @param messageType - @zh 消息类型 @en Message type
+     */
+    hasMessageStrategy(messageType: string): boolean {
+        return this._messageStrategies.has(messageType);
+    }
+}

packages/framework/server/src/ratelimit/decorators/index.ts

@@ -0,0 +1,13 @@
+/**
+ * @zh 速率限制装饰器
+ * @en Rate limit decorators
+ */
+
+export {
+    rateLimit,
+    noRateLimit,
+    rateLimitMessage,
+    noRateLimitMessage,
+    getRateLimitMetadata,
+    RATE_LIMIT_METADATA_KEY
+} from './rateLimit.js';

packages/framework/server/src/ratelimit/decorators/rateLimit.ts

@@ -0,0 +1,246 @@
+/**
+ * @zh 速率限制装饰器
+ * @en Rate limit decorators
+ */
+
+import type { MessageRateLimitConfig, RateLimitMetadata } from '../types.js';
+
+/**
+ * @zh 速率限制元数据存储键
+ * @en Rate limit metadata storage key
+ */
+export const RATE_LIMIT_METADATA_KEY = Symbol('rateLimitMetadata');
+
+/**
+ * @zh 获取速率限制元数据
+ * @en Get rate limit metadata
+ *
+ * @param target - @zh 目标对象 @en Target object
+ * @param messageType - @zh 消息类型 @en Message type
+ * @returns @zh 元数据 @en Metadata
+ */
+export function getRateLimitMetadata(target: any, messageType: string): RateLimitMetadata | undefined {
+    const metadataMap = target[RATE_LIMIT_METADATA_KEY] as Map<string, RateLimitMetadata> | undefined;
+    return metadataMap?.get(messageType);
+}
+
+/**
+ * @zh 设置速率限制元数据
+ * @en Set rate limit metadata
+ *
+ * @param target - @zh 目标对象 @en Target object
+ * @param messageType - @zh 消息类型 @en Message type
+ * @param metadata - @zh 元数据 @en Metadata
+ */
+function setRateLimitMetadata(target: any, messageType: string, metadata: RateLimitMetadata): void {
+    if (!target[RATE_LIMIT_METADATA_KEY]) {
+        target[RATE_LIMIT_METADATA_KEY] = new Map<string, RateLimitMetadata>();
+    }
+    const metadataMap = target[RATE_LIMIT_METADATA_KEY] as Map<string, RateLimitMetadata>;
+    const existing = metadataMap.get(messageType) ?? { enabled: true };
+    metadataMap.set(messageType, { ...existing, ...metadata });
+}
+
+/**
+ * @zh 从方法获取消息类型
+ * @en Get message type from method
+ *
+ * @zh 通过查找 onMessage 装饰器设置的元数据来获取消息类型
+ * @en Gets message type by looking up metadata set by onMessage decorator
+ */
+function getMessageTypeFromMethod(target: any, methodName: string): string | undefined {
+    const messageHandlers = Symbol.for('messageHandlers');
+
+    for (const sym of Object.getOwnPropertySymbols(target.constructor)) {
+        const desc = Object.getOwnPropertyDescriptor(target.constructor, sym);
+        if (desc?.value && Array.isArray(desc.value)) {
+            for (const handler of desc.value) {
+                if (handler.method === methodName) {
+                    return handler.type;
+                }
+            }
+        }
+    }
+
+    const handlers = target.constructor[Symbol.for('messageHandlers')] as { type: string; method: string }[] | undefined;
+    if (handlers) {
+        for (const handler of handlers) {
+            if (handler.method === methodName) {
+                return handler.type;
+            }
+        }
+    }
+
+    return undefined;
+}
+
+/**
+ * @zh 速率限制装饰器
+ * @en Rate limit decorator
+ *
+ * @zh 为消息处理器设置独立的速率限制配置
+ * @en Set independent rate limit configuration for message handler
+ *
+ * @example
+ * ```typescript
+ * class GameRoom extends withRateLimit(Room) {
+ *     @rateLimit({ messagesPerSecond: 1, burstSize: 2 })
+ *     @onMessage('Trade')
+ *     handleTrade(data: TradeData, player: Player) {
+ *         // This message has stricter rate limit
+ *     }
+ *
+ *     @rateLimit({ cost: 5 })
+ *     @onMessage('ExpensiveAction')
+ *     handleExpensiveAction(data: any, player: Player) {
+ *         // This message consumes 5 tokens
+ *     }
+ * }
+ * ```
+ */
+export function rateLimit(config?: MessageRateLimitConfig): MethodDecorator {
+    return function (
+        target: Object,
+        propertyKey: string | symbol,
+        descriptor: PropertyDescriptor
+    ): PropertyDescriptor {
+        const methodName = String(propertyKey);
+
+        queueMicrotask(() => {
+            const msgType = getMessageTypeFromMethod(target, methodName);
+            if (msgType) {
+                setRateLimitMetadata(target, msgType, {
+                    enabled: true,
+                    config
+                });
+            }
+        });
+
+        const metadata: RateLimitMetadata = {
+            enabled: true,
+            config
+        };
+
+        if (!target.hasOwnProperty(RATE_LIMIT_METADATA_KEY)) {
+            Object.defineProperty(target, RATE_LIMIT_METADATA_KEY, {
+                value: new Map<string, RateLimitMetadata>(),
+                writable: false,
+                enumerable: false
+            });
+        }
+
+        return descriptor;
+    };
+}
+
+/**
+ * @zh 豁免速率限制装饰器
+ * @en Exempt from rate limit decorator
+ *
+ * @zh 标记消息处理器不受速率限制
+ * @en Mark message handler as exempt from rate limit
+ *
+ * @example
+ * ```typescript
+ * class GameRoom extends withRateLimit(Room) {
+ *     @noRateLimit()
+ *     @onMessage('Heartbeat')
+ *     handleHeartbeat(data: any, player: Player) {
+ *         // This message is not rate limited
+ *     }
+ *
+ *     @noRateLimit()
+ *     @onMessage('Ping')
+ *     handlePing(data: any, player: Player) {
+ *         player.send('Pong', {});
+ *     }
+ * }
+ * ```
+ */
+export function noRateLimit(): MethodDecorator {
+    return function (
+        target: Object,
+        propertyKey: string | symbol,
+        descriptor: PropertyDescriptor
+    ): PropertyDescriptor {
+        const methodName = String(propertyKey);
+
+        queueMicrotask(() => {
+            const msgType = getMessageTypeFromMethod(target, methodName);
+            if (msgType) {
+                setRateLimitMetadata(target, msgType, {
+                    enabled: false,
+                    exempt: true
+                });
+            }
+        });
+
+        return descriptor;
+    };
+}
+
+/**
+ * @zh 速率限制消息装饰器（直接指定消息类型）
+ * @en Rate limit message decorator (directly specify message type)
+ *
+ * @zh 当无法自动获取消息类型时使用此装饰器
+ * @en Use this decorator when message type cannot be obtained automatically
+ *
+ * @example
+ * ```typescript
+ * class GameRoom extends withRateLimit(Room) {
+ *     @rateLimitMessage('Trade', { messagesPerSecond: 1 })
+ *     @onMessage('Trade')
+ *     handleTrade(data: TradeData, player: Player) {
+ *         // Explicitly rate limited
+ *     }
+ * }
+ * ```
+ */
+export function rateLimitMessage(
+    messageType: string,
+    config?: MessageRateLimitConfig
+): MethodDecorator {
+    return function (
+        target: Object,
+        propertyKey: string | symbol,
+        descriptor: PropertyDescriptor
+    ): PropertyDescriptor {
+        setRateLimitMetadata(target, messageType, {
+            enabled: true,
+            config
+        });
+
+        return descriptor;
+    };
+}
+
+/**
+ * @zh 豁免速率限制消息装饰器（直接指定消息类型）
+ * @en Exempt rate limit message decorator (directly specify message type)
+ *
+ * @example
+ * ```typescript
+ * class GameRoom extends withRateLimit(Room) {
+ *     @noRateLimitMessage('Heartbeat')
+ *     @onMessage('Heartbeat')
+ *     handleHeartbeat(data: any, player: Player) {
+ *         // Explicitly exempted
+ *     }
+ * }
+ * ```
+ */
+export function noRateLimitMessage(messageType: string): MethodDecorator {
+    return function (
+        target: Object,
+        propertyKey: string | symbol,
+        descriptor: PropertyDescriptor
+    ): PropertyDescriptor {
+        setRateLimitMetadata(target, messageType, {
+            enabled: false,
+            exempt: true
+        });
+
+        return descriptor;
+    };
+}

packages/framework/server/src/ratelimit/index.ts

@@ -0,0 +1,91 @@
+/**
+ * @zh 速率限制模块
+ * @en Rate limit module
+ *
+ * @zh 提供可插拔的速率限制系统，支持多种限流算法
+ * @en Provides pluggable rate limit system with multiple algorithms
+ *
+ * @example
+ * ```typescript
+ * import { Room, onMessage } from '@esengine/server';
+ * import {
+ *     withRateLimit,
+ *     rateLimit,
+ *     noRateLimit
+ * } from '@esengine/server/ratelimit';
+ *
+ * class GameRoom extends withRateLimit(Room, {
+ *     messagesPerSecond: 10,
+ *     burstSize: 20,
+ *     strategy: 'token-bucket',
+ *     onLimited: (player, type, result) => {
+ *         player.send('Error', {
+ *             code: 'RATE_LIMITED',
+ *             retryAfter: result.retryAfter
+ *         });
+ *     }
+ * }) {
+ *     @onMessage('Move')
+ *     handleMove(data: { x: number, y: number }, player: Player) {
+ *         // Protected by default rate limit
+ *     }
+ *
+ *     @rateLimit({ messagesPerSecond: 1 })
+ *     @onMessage('Trade')
+ *     handleTrade(data: TradeData, player: Player) {
+ *         // Stricter rate limit for trading
+ *     }
+ *
+ *     @noRateLimit()
+ *     @onMessage('Heartbeat')
+ *     handleHeartbeat(data: any, player: Player) {
+ *         // No rate limit for heartbeat
+ *     }
+ * }
+ * ```
+ */
+
+// Types
+export type {
+    RateLimitResult,
+    IRateLimitStrategy,
+    RateLimitStrategyType,
+    RateLimitConfig,
+    MessageRateLimitConfig,
+    RateLimitMetadata,
+    IRateLimitContext,
+    RateLimitedRoom,
+    StrategyConfig
+} from './types.js';
+
+// Strategies
+export {
+    TokenBucketStrategy,
+    createTokenBucketStrategy,
+    SlidingWindowStrategy,
+    createSlidingWindowStrategy,
+    FixedWindowStrategy,
+    createFixedWindowStrategy
+} from './strategies/index.js';
+
+// Context
+export { RateLimitContext } from './context.js';
+
+// Mixin
+export {
+    withRateLimit,
+    getPlayerRateLimitContext,
+    type RateLimitedPlayer,
+    type IRateLimitRoom,
+    type RateLimitRoomClass
+} from './mixin/index.js';
+
+// Decorators
+export {
+    rateLimit,
+    noRateLimit,
+    rateLimitMessage,
+    noRateLimitMessage,
+    getRateLimitMetadata,
+    RATE_LIMIT_METADATA_KEY
+} from './decorators/index.js';

packages/framework/server/src/ratelimit/mixin/index.ts

@@ -0,0 +1,12 @@
+/**
+ * @zh 速率限制 Mixin
+ * @en Rate limit mixin
+ */
+
+export {
+    withRateLimit,
+    getPlayerRateLimitContext,
+    type RateLimitedPlayer,
+    type IRateLimitRoom,
+    type RateLimitRoomClass
+} from './withRateLimit.js';

packages/framework/server/src/ratelimit/mixin/withRateLimit.ts

@@ -0,0 +1,385 @@
+/**
+ * @zh 房间速率限制 Mixin
+ * @en Room rate limit mixin
+ */
+
+import type { Player, Room } from '../../room/index.js';
+import { RateLimitContext } from '../context.js';
+import { getRateLimitMetadata, RATE_LIMIT_METADATA_KEY } from '../decorators/rateLimit.js';
+import { FixedWindowStrategy } from '../strategies/FixedWindow.js';
+import { SlidingWindowStrategy } from '../strategies/SlidingWindow.js';
+import { TokenBucketStrategy } from '../strategies/TokenBucket.js';
+import type {
+    IRateLimitContext,
+    IRateLimitStrategy,
+    RateLimitConfig,
+    RateLimitMetadata,
+    RateLimitResult
+} from '../types.js';
+
+/**
+ * @zh 玩家速率限制上下文存储
+ * @en Player rate limit context storage
+ */
+const PLAYER_RATE_LIMIT_CONTEXT = Symbol('playerRateLimitContext');
+
+/**
+ * @zh 带速率限制的玩家
+ * @en Player with rate limit
+ */
+export interface RateLimitedPlayer<TData = Record<string, unknown>> extends Player<TData> {
+    /**
+     * @zh 速率限制上下文
+     * @en Rate limit context
+     */
+    readonly rateLimit: IRateLimitContext;
+}
+
+/**
+ * @zh 带速率限制的房间接口
+ * @en Room with rate limit interface
+ */
+export interface IRateLimitRoom {
+    /**
+     * @zh 获取玩家的速率限制上下文
+     * @en Get rate limit context for player
+     */
+    getRateLimitContext(player: Player): IRateLimitContext | null;
+
+    /**
+     * @zh 全局速率限制策略
+     * @en Global rate limit strategy
+     */
+    readonly rateLimitStrategy: IRateLimitStrategy;
+
+    /**
+     * @zh 速率限制钩子（被限流时调用）
+     * @en Rate limit hook (called when rate limited)
+     */
+    onRateLimited?(player: Player, messageType: string, result: RateLimitResult): void;
+}
+
+/**
+ * @zh 速率限制房间构造器类型
+ * @en Rate limit room constructor type
+ */
+export type RateLimitRoomClass = new (...args: any[]) => Room & IRateLimitRoom;
+
+/**
+ * @zh 创建策略实例
+ * @en Create strategy instance
+ */
+function createStrategy(config: RateLimitConfig): IRateLimitStrategy {
+    const rate = config.messagesPerSecond ?? 10;
+    const capacity = config.burstSize ?? rate * 2;
+
+    switch (config.strategy) {
+        case 'sliding-window':
+            return new SlidingWindowStrategy({ rate, capacity });
+        case 'fixed-window':
+            return new FixedWindowStrategy({ rate, capacity });
+        case 'token-bucket':
+        default:
+            return new TokenBucketStrategy({ rate, capacity });
+    }
+}
+
+/**
+ * @zh 获取玩家的速率限制上下文
+ * @en Get rate limit context for player
+ */
+export function getPlayerRateLimitContext(player: Player): IRateLimitContext | null {
+    const data = player as unknown as Record<symbol, unknown>;
+    return (data[PLAYER_RATE_LIMIT_CONTEXT] as IRateLimitContext) ?? null;
+}
+
+/**
+ * @zh 设置玩家的速率限制上下文
+ * @en Set rate limit context for player
+ */
+function setPlayerRateLimitContext(player: Player, context: IRateLimitContext): void {
+    const data = player as unknown as Record<symbol, unknown>;
+    data[PLAYER_RATE_LIMIT_CONTEXT] = context;
+
+    Object.defineProperty(player, 'rateLimit', {
+        get: () => data[PLAYER_RATE_LIMIT_CONTEXT],
+        enumerable: true,
+        configurable: false
+    });
+}
+
+/**
+ * @zh 包装房间类添加速率限制功能
+ * @en Wrap room class with rate limit functionality
+ *
+ * @zh 使用 mixin 模式为房间添加速率限制，在消息处理前验证速率限制
+ * @en Uses mixin pattern to add rate limit to room, validates rate before processing messages
+ *
+ * @example
+ * ```typescript
+ * import { Room, onMessage } from '@esengine/server';
+ * import { withRateLimit } from '@esengine/server/ratelimit';
+ *
+ * class GameRoom extends withRateLimit(Room, {
+ *     messagesPerSecond: 10,
+ *     burstSize: 20,
+ *     onLimited: (player, type, result) => {
+ *         player.send('Error', {
+ *             code: 'RATE_LIMITED',
+ *             retryAfter: result.retryAfter
+ *         });
+ *     }
+ * }) {
+ *     @onMessage('Move')
+ *     handleMove(data: { x: number, y: number }, player: Player) {
+ *         // Protected by rate limit
+ *     }
+ * }
+ * ```
+ *
+ * @example
+ * // Combine with auth
+ * ```typescript
+ * class GameRoom extends withRateLimit(
+ *     withRoomAuth(Room, { requireAuth: true }),
+ *     { messagesPerSecond: 10 }
+ * ) {
+ *     // Both auth and rate limit active
+ * }
+ * ```
+ */
+export function withRateLimit<TBase extends new (...args: any[]) => Room = new (...args: any[]) => Room>(
+    Base: TBase,
+    config: RateLimitConfig = {}
+): TBase & (new (...args: any[]) => IRateLimitRoom) {
+    const {
+        messagesPerSecond = 10,
+        burstSize = 20,
+        strategy = 'token-bucket',
+        onLimited,
+        disconnectOnLimit = false,
+        maxConsecutiveLimits = 0,
+        getKey = (player: Player) => player.id,
+        cleanupInterval = 60000
+    } = config;
+
+    abstract class RateLimitRoom extends (Base as new (...args: any[]) => Room) implements IRateLimitRoom {
+        private _rateLimitStrategy: IRateLimitStrategy;
+        private _playerContexts: WeakMap<Player, RateLimitContext> = new WeakMap();
+        private _cleanupTimer: ReturnType<typeof setInterval> | null = null;
+        private _messageStrategies: Map<string, IRateLimitStrategy> = new Map();
+
+        constructor(...args: any[]) {
+            super(...args);
+            this._rateLimitStrategy = createStrategy({
+                messagesPerSecond,
+                burstSize,
+                strategy
+            });
+
+            this._startCleanup();
+            this._initMessageStrategies();
+        }
+
+        /**
+         * @zh 全局速率限制策略
+         * @en Global rate limit strategy
+         */
+        get rateLimitStrategy(): IRateLimitStrategy {
+            return this._rateLimitStrategy;
+        }
+
+        /**
+         * @zh 速率限制钩子（可覆盖）
+         * @en Rate limit hook (can be overridden)
+         */
+        onRateLimited?(player: Player, messageType: string, result: RateLimitResult): void;
+
+        /**
+         * @zh 获取玩家的速率限制上下文
+         * @en Get rate limit context for player
+         */
+        getRateLimitContext(player: Player): IRateLimitContext | null {
+            return this._playerContexts.get(player) ?? null;
+        }
+
+        /**
+         * @internal
+         * @zh 重写消息处理以添加速率限制检查
+         * @en Override message handling to add rate limit check
+         */
+        _handleMessage(type: string, data: unknown, playerId: string): void {
+            const player = this.getPlayer(playerId);
+            if (!player) return;
+
+            let context = this._playerContexts.get(player);
+            if (!context) {
+                context = this._createPlayerContext(player);
+            }
+
+            const metadata = this._getMessageMetadata(type);
+
+            if (metadata?.exempt) {
+                super._handleMessage(type, data, playerId);
+                return;
+            }
+
+            const cost = metadata?.config?.cost ?? 1;
+            let result: RateLimitResult;
+
+            if (metadata?.config && (metadata.config.messagesPerSecond || metadata.config.burstSize)) {
+                if (!context.hasMessageStrategy(type)) {
+                    const msgStrategy = createStrategy({
+                        messagesPerSecond: metadata.config.messagesPerSecond ?? messagesPerSecond,
+                        burstSize: metadata.config.burstSize ?? burstSize,
+                        strategy
+                    });
+                    context.setMessageStrategy(type, msgStrategy);
+                }
+                result = context.consume(type, cost);
+            } else {
+                result = context.consume(undefined, cost);
+            }
+
+            if (!result.allowed) {
+                this._handleRateLimited(player, type, result, context);
+                return;
+            }
+
+            super._handleMessage(type, data, playerId);
+        }
+
+        /**
+         * @internal
+         * @zh 重写 _addPlayer 以初始化速率限制上下文
+         * @en Override _addPlayer to initialize rate limit context
+         */
+        async _addPlayer(id: string, conn: any): Promise<Player | null> {
+            const player = await super._addPlayer(id, conn);
+            if (player) {
+                this._createPlayerContext(player);
+            }
+            return player;
+        }
+
+        /**
+         * @internal
+         * @zh 重写 _removePlayer 以清理速率限制上下文
+         * @en Override _removePlayer to cleanup rate limit context
+         */
+        async _removePlayer(id: string, reason?: string): Promise<void> {
+            const player = this.getPlayer(id);
+            if (player) {
+                const context = this._playerContexts.get(player);
+                if (context) {
+                    context.reset();
+                }
+                this._playerContexts.delete(player);
+            }
+            await super._removePlayer(id, reason);
+        }
+
+        /**
+         * @zh 重写 dispose 以清理定时器
+         * @en Override dispose to cleanup timer
+         */
+        dispose(): void {
+            this._stopCleanup();
+            super.dispose();
+        }
+
+        /**
+         * @zh 创建玩家的速率限制上下文
+         * @en Create rate limit context for player
+         */
+        private _createPlayerContext(player: Player): RateLimitContext {
+            const key = getKey(player);
+            const context = new RateLimitContext(key, this._rateLimitStrategy);
+            this._playerContexts.set(player, context);
+            setPlayerRateLimitContext(player, context);
+            return context;
+        }
+
+        /**
+         * @zh 处理被限流的情况
+         * @en Handle rate limited situation
+         */
+        private _handleRateLimited(
+            player: Player,
+            messageType: string,
+            result: RateLimitResult,
+            context: RateLimitContext
+        ): void {
+            if (this.onRateLimited) {
+                this.onRateLimited(player, messageType, result);
+            }
+
+            onLimited?.(player, messageType, result);
+
+            if (disconnectOnLimit) {
+                this.kick(player as any, 'rate_limited');
+                return;
+            }
+
+            if (maxConsecutiveLimits > 0 && context.consecutiveLimitCount >= maxConsecutiveLimits) {
+                this.kick(player as any, 'too_many_rate_limits');
+            }
+        }
+
+        /**
+         * @zh 获取消息的元数据
+         * @en Get message metadata
+         */
+        private _getMessageMetadata(type: string): RateLimitMetadata | undefined {
+            return getRateLimitMetadata(this.constructor.prototype, type);
+        }
+
+        /**
+         * @zh 初始化消息策略（从装饰器元数据）
+         * @en Initialize message strategies (from decorator metadata)
+         */
+        private _initMessageStrategies(): void {
+            const metadataMap = (this.constructor.prototype as any)[RATE_LIMIT_METADATA_KEY];
+            if (metadataMap instanceof Map) {
+                for (const [msgType, metadata] of metadataMap) {
+                    if (metadata.config && (metadata.config.messagesPerSecond || metadata.config.burstSize)) {
+                        const msgStrategy = createStrategy({
+                            messagesPerSecond: metadata.config.messagesPerSecond ?? messagesPerSecond,
+                            burstSize: metadata.config.burstSize ?? burstSize,
+                            strategy
+                        });
+                        this._messageStrategies.set(msgType, msgStrategy);
+                    }
+                }
+            }
+        }
+
+        /**
+         * @zh 开始清理定时器
+         * @en Start cleanup timer
+         */
+        private _startCleanup(): void {
+            if (cleanupInterval > 0) {
+                this._cleanupTimer = setInterval(() => {
+                    this._rateLimitStrategy.cleanup();
+                    for (const strategy of this._messageStrategies.values()) {
+                        strategy.cleanup();
+                    }
+                }, cleanupInterval);
+            }
+        }
+
+        /**
+         * @zh 停止清理定时器
+         * @en Stop cleanup timer
+         */
+        private _stopCleanup(): void {
+            if (this._cleanupTimer) {
+                clearInterval(this._cleanupTimer);
+                this._cleanupTimer = null;
+            }
+        }
+    }
+
+    return RateLimitRoom as unknown as TBase & (new (...args: any[]) => IRateLimitRoom);
+}

packages/framework/server/src/ratelimit/strategies/FixedWindow.ts

@@ -0,0 +1,204 @@
+/**
+ * @zh 固定窗口速率限制策略
+ * @en Fixed window rate limit strategy
+ */
+
+import type { IRateLimitStrategy, RateLimitResult, StrategyConfig } from '../types.js';
+
+/**
+ * @zh 固定窗口状态
+ * @en Fixed window state
+ */
+interface WindowState {
+    /**
+     * @zh 当前窗口计数
+     * @en Current window count
+     */
+    count: number;
+
+    /**
+     * @zh 窗口开始时间
+     * @en Window start time
+     */
+    windowStart: number;
+}
+
+/**
+ * @zh 固定窗口速率限制策略
+ * @en Fixed window rate limit strategy
+ *
+ * @zh 固定窗口算法将时间划分为固定长度的窗口，在每个窗口内计数请求。
+ * 实现简单，内存开销小，但在窗口边界可能有两倍突发的问题。
+ * @en Fixed window algorithm divides time into fixed-length windows and counts requests in each window.
+ * Simple to implement with low memory overhead, but may have 2x burst issue at window boundaries.
+ *
+ * @example
+ * ```typescript
+ * const strategy = new FixedWindowStrategy({
+ *     rate: 10,       // 10 requests per second
+ *     capacity: 10    // same as rate for 1-second window
+ * });
+ *
+ * const result = strategy.consume('player-123');
+ * if (result.allowed) {
+ *     // Process message
+ * }
+ * ```
+ */
+export class FixedWindowStrategy implements IRateLimitStrategy {
+    readonly name = 'fixed-window';
+
+    private _rate: number;
+    private _capacity: number;
+    private _windowMs: number;
+    private _windows: Map<string, WindowState> = new Map();
+
+    /**
+     * @zh 创建固定窗口策略
+     * @en Create fixed window strategy
+     *
+     * @param config - @zh 配置 @en Configuration
+     * @param config.rate - @zh 每秒允许的请求数 @en Requests allowed per second
+     * @param config.capacity - @zh 窗口容量 @en Window capacity
+     */
+    constructor(config: StrategyConfig) {
+        this._rate = config.rate;
+        this._capacity = config.capacity;
+        this._windowMs = 1000;
+    }
+
+    /**
+     * @zh 尝试消费配额
+     * @en Try to consume quota
+     */
+    consume(key: string, cost: number = 1): RateLimitResult {
+        const now = Date.now();
+        const window = this._getOrCreateWindow(key, now);
+
+        this._maybeResetWindow(window, now);
+
+        if (window.count + cost <= this._capacity) {
+            window.count += cost;
+
+            return {
+                allowed: true,
+                remaining: this._capacity - window.count,
+                resetAt: window.windowStart + this._windowMs
+            };
+        }
+
+        const retryAfter = window.windowStart + this._windowMs - now;
+
+        return {
+            allowed: false,
+            remaining: 0,
+            resetAt: window.windowStart + this._windowMs,
+            retryAfter: Math.max(0, retryAfter)
+        };
+    }
+
+    /**
+     * @zh 获取当前状态
+     * @en Get current status
+     */
+    getStatus(key: string): RateLimitResult {
+        const now = Date.now();
+        const window = this._windows.get(key);
+
+        if (!window) {
+            return {
+                allowed: true,
+                remaining: this._capacity,
+                resetAt: this._getWindowStart(now) + this._windowMs
+            };
+        }
+
+        this._maybeResetWindow(window, now);
+
+        const remaining = Math.max(0, this._capacity - window.count);
+
+        return {
+            allowed: remaining > 0,
+            remaining,
+            resetAt: window.windowStart + this._windowMs
+        };
+    }
+
+    /**
+     * @zh 重置指定键
+     * @en Reset specified key
+     */
+    reset(key: string): void {
+        this._windows.delete(key);
+    }
+
+    /**
+     * @zh 清理所有过期记录
+     * @en Clean up all expired records
+     */
+    cleanup(): void {
+        const now = Date.now();
+        const currentWindowStart = this._getWindowStart(now);
+
+        for (const [key, window] of this._windows) {
+            if (window.windowStart < currentWindowStart - this._windowMs) {
+                this._windows.delete(key);
+            }
+        }
+    }
+
+    /**
+     * @zh 获取或创建窗口
+     * @en Get or create window
+     */
+    private _getOrCreateWindow(key: string, now: number): WindowState {
+        let window = this._windows.get(key);
+
+        if (!window) {
+            window = {
+                count: 0,
+                windowStart: this._getWindowStart(now)
+            };
+            this._windows.set(key, window);
+        }
+
+        return window;
+    }
+
+    /**
+     * @zh 如果需要则重置窗口
+     * @en Reset window if needed
+     */
+    private _maybeResetWindow(window: WindowState, now: number): void {
+        const currentWindowStart = this._getWindowStart(now);
+
+        if (window.windowStart < currentWindowStart) {
+            window.count = 0;
+            window.windowStart = currentWindowStart;
+        }
+    }
+
+    /**
+     * @zh 获取窗口开始时间
+     * @en Get window start time
+     */
+    private _getWindowStart(now: number): number {
+        return Math.floor(now / this._windowMs) * this._windowMs;
+    }
+}
+
+/**
+ * @zh 创建固定窗口策略
+ * @en Create fixed window strategy
+ *
+ * @example
+ * ```typescript
+ * const strategy = createFixedWindowStrategy({
+ *     rate: 10,
+ *     capacity: 10
+ * });
+ * ```
+ */
+export function createFixedWindowStrategy(config: StrategyConfig): FixedWindowStrategy {
+    return new FixedWindowStrategy(config);
+}

packages/framework/server/src/ratelimit/strategies/SlidingWindow.ts

@@ -0,0 +1,201 @@
+/**
+ * @zh 滑动窗口速率限制策略
+ * @en Sliding window rate limit strategy
+ */
+
+import type { IRateLimitStrategy, RateLimitResult, StrategyConfig } from '../types.js';
+
+/**
+ * @zh 滑动窗口状态
+ * @en Sliding window state
+ */
+interface WindowState {
+    /**
+     * @zh 请求时间戳列表
+     * @en Request timestamp list
+     */
+    timestamps: number[];
+}
+
+/**
+ * @zh 滑动窗口速率限制策略
+ * @en Sliding window rate limit strategy
+ *
+ * @zh 滑动窗口算法精确跟踪时间窗口内的请求数。
+ * 比固定窗口更精确，但内存开销稍大。
+ * @en Sliding window algorithm precisely tracks requests within a time window.
+ * More accurate than fixed window, but with slightly higher memory overhead.
+ *
+ * @example
+ * ```typescript
+ * const strategy = new SlidingWindowStrategy({
+ *     rate: 10,       // 10 requests per second
+ *     capacity: 10    // window size (same as rate for 1-second window)
+ * });
+ *
+ * const result = strategy.consume('player-123');
+ * if (result.allowed) {
+ *     // Process message
+ * }
+ * ```
+ */
+export class SlidingWindowStrategy implements IRateLimitStrategy {
+    readonly name = 'sliding-window';
+
+    private _rate: number;
+    private _capacity: number;
+    private _windowMs: number;
+    private _windows: Map<string, WindowState> = new Map();
+
+    /**
+     * @zh 创建滑动窗口策略
+     * @en Create sliding window strategy
+     *
+     * @param config - @zh 配置 @en Configuration
+     * @param config.rate - @zh 每秒允许的请求数 @en Requests allowed per second
+     * @param config.capacity - @zh 窗口容量 @en Window capacity
+     */
+    constructor(config: StrategyConfig) {
+        this._rate = config.rate;
+        this._capacity = config.capacity;
+        this._windowMs = 1000;
+    }
+
+    /**
+     * @zh 尝试消费配额
+     * @en Try to consume quota
+     */
+    consume(key: string, cost: number = 1): RateLimitResult {
+        const now = Date.now();
+        const window = this._getOrCreateWindow(key);
+
+        this._cleanExpiredTimestamps(window, now);
+
+        const currentCount = window.timestamps.length;
+
+        if (currentCount + cost <= this._capacity) {
+            for (let i = 0; i < cost; i++) {
+                window.timestamps.push(now);
+            }
+
+            return {
+                allowed: true,
+                remaining: this._capacity - window.timestamps.length,
+                resetAt: this._getResetAt(window, now)
+            };
+        }
+
+        const oldestTimestamp = window.timestamps[0] || now;
+        const retryAfter = Math.max(0, oldestTimestamp + this._windowMs - now);
+
+        return {
+            allowed: false,
+            remaining: 0,
+            resetAt: oldestTimestamp + this._windowMs,
+            retryAfter
+        };
+    }
+
+    /**
+     * @zh 获取当前状态
+     * @en Get current status
+     */
+    getStatus(key: string): RateLimitResult {
+        const now = Date.now();
+        const window = this._windows.get(key);
+
+        if (!window) {
+            return {
+                allowed: true,
+                remaining: this._capacity,
+                resetAt: now + this._windowMs
+            };
+        }
+
+        this._cleanExpiredTimestamps(window, now);
+
+        const remaining = Math.max(0, this._capacity - window.timestamps.length);
+
+        return {
+            allowed: remaining > 0,
+            remaining,
+            resetAt: this._getResetAt(window, now)
+        };
+    }
+
+    /**
+     * @zh 重置指定键
+     * @en Reset specified key
+     */
+    reset(key: string): void {
+        this._windows.delete(key);
+    }
+
+    /**
+     * @zh 清理所有过期记录
+     * @en Clean up all expired records
+     */
+    cleanup(): void {
+        const now = Date.now();
+
+        for (const [key, window] of this._windows) {
+            this._cleanExpiredTimestamps(window, now);
+
+            if (window.timestamps.length === 0) {
+                this._windows.delete(key);
+            }
+        }
+    }
+
+    /**
+     * @zh 获取或创建窗口
+     * @en Get or create window
+     */
+    private _getOrCreateWindow(key: string): WindowState {
+        let window = this._windows.get(key);
+
+        if (!window) {
+            window = { timestamps: [] };
+            this._windows.set(key, window);
+        }
+
+        return window;
+    }
+
+    /**
+     * @zh 清理过期的时间戳
+     * @en Clean expired timestamps
+     */
+    private _cleanExpiredTimestamps(window: WindowState, now: number): void {
+        const cutoff = now - this._windowMs;
+        window.timestamps = window.timestamps.filter(ts => ts > cutoff);
+    }
+
+    /**
+     * @zh 获取重置时间
+     * @en Get reset time
+     */
+    private _getResetAt(window: WindowState, now: number): number {
+        if (window.timestamps.length === 0) {
+            return now + this._windowMs;
+        }
+
+        return window.timestamps[0] + this._windowMs;
+    }
+}
+
+/**
+ * @zh 创建滑动窗口策略
+ * @en Create sliding window strategy
+ *
+ * @example
+ * ```typescript
+ * const strategy = createSlidingWindowStrategy({
+ *     rate: 10,
+ *     capacity: 10
+ * });
+ * ```
+ */
+export function createSlidingWindowStrategy(config: StrategyConfig): SlidingWindowStrategy {
+    return new SlidingWindowStrategy(config);
+}

packages/framework/server/src/ratelimit/strategies/TokenBucket.ts

@@ -0,0 +1,191 @@
+/**
+ * @zh 令牌桶速率限制策略
+ * @en Token bucket rate limit strategy
+ */
+
+import type { IRateLimitStrategy, RateLimitResult, StrategyConfig } from '../types.js';
+
+/**
+ * @zh 令牌桶状态
+ * @en Token bucket state
+ */
+interface BucketState {
+    /**
+     * @zh 当前令牌数
+     * @en Current token count
+     */
+    tokens: number;
+
+    /**
+     * @zh 上次更新时间
+     * @en Last update time
+     */
+    lastUpdate: number;
+}
+
+/**
+ * @zh 令牌桶速率限制策略
+ * @en Token bucket rate limit strategy
+ *
+ * @zh 令牌桶算法允许突发流量，同时保持长期速率限制。
+ * 令牌以固定速率添加到桶中，每个请求消耗一个或多个令牌。
+ * @en Token bucket algorithm allows burst traffic while maintaining long-term rate limit.
+ * Tokens are added to the bucket at a fixed rate, each request consumes one or more tokens.
+ *
+ * @example
+ * ```typescript
+ * const strategy = new TokenBucketStrategy({
+ *     rate: 10,      // 10 tokens per second
+ *     capacity: 20   // bucket can hold 20 tokens max
+ * });
+ *
+ * const result = strategy.consume('player-123');
+ * if (result.allowed) {
+ *     // Process message
+ * }
+ * ```
+ */
+export class TokenBucketStrategy implements IRateLimitStrategy {
+    readonly name = 'token-bucket';
+
+    private _rate: number;
+    private _capacity: number;
+    private _buckets: Map<string, BucketState> = new Map();
+
+    /**
+     * @zh 创建令牌桶策略
+     * @en Create token bucket strategy
+     *
+     * @param config - @zh 配置 @en Configuration
+     * @param config.rate - @zh 每秒添加的令牌数 @en Tokens added per second
+     * @param config.capacity - @zh 桶容量（最大令牌数）@en Bucket capacity (max tokens)
+     */
+    constructor(config: StrategyConfig) {
+        this._rate = config.rate;
+        this._capacity = config.capacity;
+    }
+
+    /**
+     * @zh 尝试消费令牌
+     * @en Try to consume tokens
+     */
+    consume(key: string, cost: number = 1): RateLimitResult {
+        const now = Date.now();
+        const bucket = this._getOrCreateBucket(key, now);
+
+        this._refillBucket(bucket, now);
+
+        if (bucket.tokens >= cost) {
+            bucket.tokens -= cost;
+            return {
+                allowed: true,
+                remaining: Math.floor(bucket.tokens),
+                resetAt: now + Math.ceil((this._capacity - bucket.tokens) / this._rate * 1000)
+            };
+        }
+
+        const tokensNeeded = cost - bucket.tokens;
+        const retryAfter = Math.ceil(tokensNeeded / this._rate * 1000);
+
+        return {
+            allowed: false,
+            remaining: 0,
+            resetAt: now + retryAfter,
+            retryAfter
+        };
+    }
+
+    /**
+     * @zh 获取当前状态
+     * @en Get current status
+     */
+    getStatus(key: string): RateLimitResult {
+        const now = Date.now();
+        const bucket = this._buckets.get(key);
+
+        if (!bucket) {
+            return {
+                allowed: true,
+                remaining: this._capacity,
+                resetAt: now
+            };
+        }
+
+        this._refillBucket(bucket, now);
+
+        return {
+            allowed: bucket.tokens >= 1,
+            remaining: Math.floor(bucket.tokens),
+            resetAt: now + Math.ceil((this._capacity - bucket.tokens) / this._rate * 1000)
+        };
+    }
+
+    /**
+     * @zh 重置指定键
+     * @en Reset specified key
+     */
+    reset(key: string): void {
+        this._buckets.delete(key);
+    }
+
+    /**
+     * @zh 清理所有记录
+     * @en Clean up all records
+     */
+    cleanup(): void {
+        const now = Date.now();
+        const expireThreshold = 60000;
+
+        for (const [key, bucket] of this._buckets) {
+            if (now - bucket.lastUpdate > expireThreshold && bucket.tokens >= this._capacity) {
+                this._buckets.delete(key);
+            }
+        }
+    }
+
+    /**
+     * @zh 获取或创建桶
+     * @en Get or create bucket
+     */
+    private _getOrCreateBucket(key: string, now: number): BucketState {
+        let bucket = this._buckets.get(key);
+
+        if (!bucket) {
+            bucket = {
+                tokens: this._capacity,
+                lastUpdate: now
+            };
+            this._buckets.set(key, bucket);
+        }
+
+        return bucket;
+    }
+
+    /**
+     * @zh 补充令牌
+     * @en Refill tokens
+     */
+    private _refillBucket(bucket: BucketState, now: number): void {
+        const elapsed = now - bucket.lastUpdate;
+        const tokensToAdd = (elapsed / 1000) * this._rate;
+
+        bucket.tokens = Math.min(this._capacity, bucket.tokens + tokensToAdd);
+        bucket.lastUpdate = now;
+    }
+}
+
+/**
+ * @zh 创建令牌桶策略
+ * @en Create token bucket strategy
+ *
+ * @example
+ * ```typescript
+ * const strategy = createTokenBucketStrategy({
+ *     rate: 10,
+ *     capacity: 20
+ * });
+ * ```
+ */
+export function createTokenBucketStrategy(config: StrategyConfig): TokenBucketStrategy {
+    return new TokenBucketStrategy(config);
+}

packages/framework/server/src/ratelimit/strategies/index.ts

@@ -0,0 +1,8 @@
+/**
+ * @zh 速率限制策略
+ * @en Rate limit strategies
+ */
+
+export { TokenBucketStrategy, createTokenBucketStrategy } from './TokenBucket.js';
+export { SlidingWindowStrategy, createSlidingWindowStrategy } from './SlidingWindow.js';
+export { FixedWindowStrategy, createFixedWindowStrategy } from './FixedWindow.js';

packages/framework/server/src/ratelimit/types.ts

@@ -0,0 +1,267 @@
+/**
+ * @zh 速率限制类型定义
+ * @en Rate limit type definitions
+ */
+
+import type { Player } from '../room/Player.js';
+
+/**
+ * @zh 速率限制结果
+ * @en Rate limit result
+ */
+export interface RateLimitResult {
+    /**
+     * @zh 是否允许
+     * @en Whether allowed
+     */
+    allowed: boolean;
+
+    /**
+     * @zh 剩余配额
+     * @en Remaining quota
+     */
+    remaining: number;
+
+    /**
+     * @zh 配额重置时间（毫秒时间戳）
+     * @en Quota reset time (milliseconds timestamp)
+     */
+    resetAt: number;
+
+    /**
+     * @zh 重试等待时间（毫秒），仅在被限流时返回
+     * @en Retry after time (milliseconds), only returned when rate limited
+     */
+    retryAfter?: number;
+}
+
+/**
+ * @zh 速率限制策略接口
+ * @en Rate limit strategy interface
+ */
+export interface IRateLimitStrategy {
+    /**
+     * @zh 策略名称
+     * @en Strategy name
+     */
+    readonly name: string;
+
+    /**
+     * @zh 尝试消费配额
+     * @en Try to consume quota
+     *
+     * @param key - @zh 限流键（通常是玩家ID或连接ID）@en Rate limit key (usually player ID or connection ID)
+     * @param cost - @zh 消费数量（默认1）@en Consumption amount (default 1)
+     * @returns @zh 限流结果 @en Rate limit result
+     */
+    consume(key: string, cost?: number): RateLimitResult;
+
+    /**
+     * @zh 获取当前状态（不消费）
+     * @en Get current status (without consuming)
+     *
+     * @param key - @zh 限流键 @en Rate limit key
+     * @returns @zh 限流结果 @en Rate limit result
+     */
+    getStatus(key: string): RateLimitResult;
+
+    /**
+     * @zh 重置指定键的限流状态
+     * @en Reset rate limit status for specified key
+     *
+     * @param key - @zh 限流键 @en Rate limit key
+     */
+    reset(key: string): void;
+
+    /**
+     * @zh 清理所有过期的限流记录
+     * @en Clean up all expired rate limit records
+     */
+    cleanup(): void;
+}
+
+/**
+ * @zh 速率限制策略类型
+ * @en Rate limit strategy type
+ */
+export type RateLimitStrategyType = 'token-bucket' | 'sliding-window' | 'fixed-window';
+
+/**
+ * @zh 速率限制配置
+ * @en Rate limit configuration
+ */
+export interface RateLimitConfig {
+    /**
+     * @zh 每秒允许的消息数
+     * @en Messages allowed per second
+     * @defaultValue 10
+     */
+    messagesPerSecond?: number;
+
+    /**
+     * @zh 突发容量（令牌桶大小）
+     * @en Burst capacity (token bucket size)
+     * @defaultValue 20
+     */
+    burstSize?: number;
+
+    /**
+     * @zh 限流策略
+     * @en Rate limit strategy
+     * @defaultValue 'token-bucket'
+     */
+    strategy?: RateLimitStrategyType;
+
+    /**
+     * @zh 被限流时的回调
+     * @en Callback when rate limited
+     */
+    onLimited?: (player: Player, messageType: string, result: RateLimitResult) => void;
+
+    /**
+     * @zh 是否在限流时断开连接
+     * @en Whether to disconnect when rate limited
+     * @defaultValue false
+     */
+    disconnectOnLimit?: boolean;
+
+    /**
+     * @zh 连续被限流多少次后断开连接（0 表示不断开）
+     * @en Disconnect after how many consecutive rate limits (0 means never)
+     * @defaultValue 0
+     */
+    maxConsecutiveLimits?: number;
+
+    /**
+     * @zh 获取限流键的函数（默认使用玩家ID）
+     * @en Function to get rate limit key (default uses player ID)
+     */
+    getKey?: (player: Player) => string;
+
+    /**
+     * @zh 清理间隔（毫秒）
+     * @en Cleanup interval (milliseconds)
+     * @defaultValue 60000
+     */
+    cleanupInterval?: number;
+}
+
+/**
+ * @zh 单个消息的速率限制配置
+ * @en Rate limit configuration for individual message
+ */
+export interface MessageRateLimitConfig {
+    /**
+     * @zh 每秒允许的消息数
+     * @en Messages allowed per second
+     */
+    messagesPerSecond?: number;
+
+    /**
+     * @zh 突发容量
+     * @en Burst capacity
+     */
+    burstSize?: number;
+
+    /**
+     * @zh 消费的令牌数（默认1）
+     * @en Tokens to consume (default 1)
+     */
+    cost?: number;
+}
+
+/**
+ * @zh 速率限制元数据
+ * @en Rate limit metadata
+ */
+export interface RateLimitMetadata {
+    /**
+     * @zh 是否启用速率限制
+     * @en Whether rate limit is enabled
+     */
+    enabled: boolean;
+
+    /**
+     * @zh 是否豁免速率限制
+     * @en Whether exempt from rate limit
+     */
+    exempt?: boolean;
+
+    /**
+     * @zh 自定义配置
+     * @en Custom configuration
+     */
+    config?: MessageRateLimitConfig;
+}
+
+/**
+ * @zh 速率限制上下文接口
+ * @en Rate limit context interface
+ */
+export interface IRateLimitContext {
+    /**
+     * @zh 检查是否允许（不消费）
+     * @en Check if allowed (without consuming)
+     */
+    check(messageType?: string): RateLimitResult;
+
+    /**
+     * @zh 消费配额
+     * @en Consume quota
+     */
+    consume(messageType?: string, cost?: number): RateLimitResult;
+
+    /**
+     * @zh 重置限流状态
+     * @en Reset rate limit status
+     */
+    reset(messageType?: string): void;
+
+    /**
+     * @zh 获取连续被限流次数
+     * @en Get consecutive limit count
+     */
+    readonly consecutiveLimitCount: number;
+
+    /**
+     * @zh 重置连续限流计数
+     * @en Reset consecutive limit count
+     */
+    resetConsecutiveCount(): void;
+}
+
+/**
+ * @zh 带速率限制的 Room 接口
+ * @en Room interface with rate limit
+ */
+export interface RateLimitedRoom {
+    /**
+     * @zh 获取玩家的速率限制上下文
+     * @en Get rate limit context for player
+     */
+    getRateLimitContext(player: Player): IRateLimitContext | null;
+
+    /**
+     * @zh 全局速率限制策略
+     * @en Global rate limit strategy
+     */
+    readonly rateLimitStrategy: IRateLimitStrategy;
+}
+
+/**
+ * @zh 速率限制策略配置
+ * @en Rate limit strategy configuration
+ */
+export interface StrategyConfig {
+    /**
+     * @zh 每秒允许的请求数
+     * @en Requests allowed per second
+     */
+    rate: number;
+
+    /**
+     * @zh 容量/窗口大小
+     * @en Capacity/window size
+     */
+    capacity: number;
+}

packages/framework/server/tsup.config.ts

@@ -1,11 +1,18 @@
-import { defineConfig } from 'tsup'
+import { defineConfig } from 'tsup';
 
 export default defineConfig({
-    entry: ['src/index.ts', 'src/testing/index.ts'],
+    entry: [
+        'src/index.ts',
+        'src/auth/index.ts',
+        'src/auth/testing/index.ts',
+        'src/ratelimit/index.ts',
+        'src/testing/index.ts',
+        'src/ecs/index.ts',
+    ],
     format: ['esm'],
     dts: true,
     clean: true,
     sourcemap: true,
-    external: ['ws', '@esengine/rpc', '@esengine/rpc/codec'],
+    external: ['ws', 'jsonwebtoken', '@esengine/rpc', '@esengine/rpc/codec', '@esengine/ecs-framework'],
     treeshake: true,
-})
+});

packages/framework/spatial/CHANGELOG.md

@@ -1,5 +1,21 @@
 # @esengine/spatial
 
+## 2.0.1
+
+### Patch Changes
+
+- Updated dependencies [[`a08a84b`](https://github.com/esengine/esengine/commit/a08a84b7db28e1140cbc637d442552747ad81c76)]:
+    - @esengine/ecs-framework@2.5.1
+    - @esengine/blueprint@2.0.1
+
+## 2.0.0
+
+### Patch Changes
+
+- Updated dependencies [[`1f297ac`](https://github.com/esengine/esengine/commit/1f297ac769e37700f72fb4425639af7090898256)]:
+    - @esengine/ecs-framework@2.5.0
+    - @esengine/blueprint@2.0.0
+
 ## 1.0.4
 
 ### Patch Changes

packages/framework/spatial/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@esengine/spatial",
-    "version": "1.0.4",
+    "version": "2.0.1",
     "description": "Spatial query and indexing system for ECS Framework / ECS 框架的空间查询和索引系统",
     "type": "module",
     "main": "./dist/index.js",

packages/framework/timer/CHANGELOG.md

@@ -1,5 +1,21 @@
 # @esengine/timer
 
+## 2.0.1
+
+### Patch Changes
+
+- Updated dependencies [[`a08a84b`](https://github.com/esengine/esengine/commit/a08a84b7db28e1140cbc637d442552747ad81c76)]:
+    - @esengine/ecs-framework@2.5.1
+    - @esengine/blueprint@2.0.1
+
+## 2.0.0
+
+### Patch Changes
+
+- Updated dependencies [[`1f297ac`](https://github.com/esengine/esengine/commit/1f297ac769e37700f72fb4425639af7090898256)]:
+    - @esengine/ecs-framework@2.5.0
+    - @esengine/blueprint@2.0.0
+
 ## 1.0.3
 
 ### Patch Changes

packages/framework/timer/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@esengine/timer",
-    "version": "1.0.3",
+    "version": "2.0.1",
     "description": "Timer and cooldown system for ECS Framework / ECS 框架的定时器和冷却系统",
     "type": "module",
     "main": "./dist/index.js",

packages/framework/transaction/CHANGELOG.md

@@ -1,5 +1,26 @@
 # @esengine/transaction
 
+## 2.0.3
+
+### Patch Changes
+
+- Updated dependencies [[`1f297ac`](https://github.com/esengine/esengine/commit/1f297ac769e37700f72fb4425639af7090898256)]:
+    - @esengine/server@2.0.0
+
+## 2.0.2
+
+### Patch Changes
+
+- Updated dependencies [[`afdeb00`](https://github.com/esengine/esengine/commit/afdeb00b4df9427e7f03b91558bf95804a837b70)]:
+    - @esengine/server@1.3.0
+
+## 2.0.1
+
+### Patch Changes
+
+- Updated dependencies [[`61a13ba`](https://github.com/esengine/esengine/commit/61a13baca2e1e8fba14e23d439521ec0e6b7ca6e)]:
+    - @esengine/server@1.2.0
+
 ## 2.0.0
 
 ### Major Changes

packages/framework/transaction/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@esengine/transaction",
-    "version": "2.0.0",
+    "version": "2.0.3",
     "description": "Game transaction system with distributed support | 游戏事务系统，支持分布式事务",
     "type": "module",
     "main": "./dist/index.js",

packages/tools/demos/CHANGELOG.md

@@ -1,5 +1,27 @@
 # @esengine/demos
 
+## 1.0.6
+
+### Patch Changes
+
+- Updated dependencies []:
+    - @esengine/fsm@2.0.1
+    - @esengine/pathfinding@2.0.1
+    - @esengine/procgen@2.0.1
+    - @esengine/spatial@2.0.1
+    - @esengine/timer@2.0.1
+
+## 1.0.5
+
+### Patch Changes
+
+- Updated dependencies []:
+    - @esengine/fsm@2.0.0
+    - @esengine/pathfinding@2.0.0
+    - @esengine/procgen@2.0.0
+    - @esengine/spatial@2.0.0
+    - @esengine/timer@2.0.0
+
 ## 1.0.4
 
 ### Patch Changes

packages/tools/demos/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@esengine/demos",
-    "version": "1.0.4",
+    "version": "1.0.6",
     "private": true,
     "description": "Demo tests for ESEngine modules documentation",
     "type": "module",

pnpm-lock.yaml

@@ -1688,12 +1688,21 @@ importers:
         specifier: workspace:*
         version: link:../rpc
     devDependencies:
+      '@esengine/ecs-framework':
+        specifier: workspace:*
+        version: link:../core/dist
+      '@types/jsonwebtoken':
+        specifier: ^9.0.0
+        version: 9.0.10
       '@types/node':
         specifier: ^20.0.0
         version: 20.19.27
       '@types/ws':
         specifier: ^8.5.13
         version: 8.18.1
+      jsonwebtoken:
+        specifier: ^9.0.0
+        version: 9.0.3
       rimraf:
         specifier: ^5.0.0
         version: 5.0.10
@@ -5183,6 +5192,9 @@ packages:
   '@types/json-schema@7.0.15':
     resolution: {integrity: sha512-5+fP8P8MFNC+AyZCDxrB2pkZFPGzqQWUzpSeuuVLvm8VMcorNYavBqoFcxK8bQz4Qsbn4oUEEem4wDLfcysGHA==}
 
+  '@types/jsonwebtoken@9.0.10':
+    resolution: {integrity: sha512-asx5hIG9Qmf/1oStypjanR7iKTv0gXQ1Ov/jfrX6kS/EO0OFni8orbmGCn0672NHR3kXHwpAwR+B368ZGN/2rA==}
+
   '@types/linkify-it@5.0.0':
     resolution: {integrity: sha512-sVDA58zAw4eWAffKOaQH5/5j3XeayukzDk+ewSsnv3p4yJEZHCCzMDiZM8e0OUrRvmpGZ85jf4yDHkHsgBNr9Q==}
 
@@ -5911,6 +5923,9 @@ packages:
     resolution: {integrity: sha512-WIsKqkSC0ABoBJuT1LEX+2HEvNmNKKgnTAyd0fL8qzK4SH2i9NXg+t08YtdZp/V9IZ33cxe3iV4yM0qg8lMQng==}
     engines: {node: '>=16.20.1'}
 
+  buffer-equal-constant-time@1.0.1:
+    resolution: {integrity: sha512-zRpUiDwd/xk6ADqPMATG8vc9VPrkck7T07OIx0gnjmJAnHnTVXNQG3vfvWNuiZIkwu9KrKdA1iJKfsfTVxE6NA==}
+
   buffer-from@1.1.2:
     resolution: {integrity: sha512-E+XQCRwSbaaiChtv6k6Dwgc+bx+Bs6vuKJHHl5kox/BaKbhiXzqQOwK4cO22yElGp2OCmjwVhT3HmxgyPGnJfQ==}
 
@@ -6604,6 +6619,9 @@ packages:
   eastasianwidth@0.2.0:
     resolution: {integrity: sha512-I88TYZWc9XiYHRQ4/3c5rjjfgkjhLyW2luGIheGERbNQ6OY7yTybanSpDXZa8y7VUP9YmDcYa+eyq4ca7iLqWA==}
 
+  ecdsa-sig-formatter@1.0.11:
+    resolution: {integrity: sha512-nagl3RYrbNv6kQkeJIpt6NJZy8twLB/2vtz6yN9Z4vRKHN4/QZJIEbqohALSgwKdnksuY3k5Addp5lg8sVoVcQ==}
+
   editorconfig@0.15.3:
     resolution: {integrity: sha512-M9wIMFx96vq0R4F+gRpY3o2exzb8hEj/n9S8unZtHSvYjibBp/iMufSzvmOcV/laG0ZtuTVGtiJggPOSW2r93g==}
     hasBin: true
@@ -7968,6 +7986,10 @@ packages:
     resolution: {integrity: sha512-POQXvpdL69+CluYsillJ7SUhKvytYjW9vG/GKpnf+xP8UWgYEM/RaMzHHofbALDiKbbP1W8UEYmgGl39WkPZsg==}
     engines: {'0': node >= 0.2.0}
 
+  jsonwebtoken@9.0.3:
+    resolution: {integrity: sha512-MT/xP0CrubFRNLNKvxJ2BYfy53Zkm++5bX9dtuPbqAeQpTVe0MQTFhao8+Cp//EmJp244xt6Drw/GVEGCUj40g==}
+    engines: {node: '>=12', npm: '>=6'}
+
   jszip@3.10.1:
     resolution: {integrity: sha512-xXDvecyTpGLrqFrvkrUSoxxfJI5AH7U8zxxtVclpsUtMCq4JQ290LY8AW5c7Ggnr/Y/oK+bQMbqK2qmtk3pN4g==}
 
@@ -7977,6 +7999,12 @@ packages:
   just-diff@6.0.2:
     resolution: {integrity: sha512-S59eriX5u3/QhMNq3v/gm8Kd0w8OS6Tz2FS1NG4blv+z0MuQcBRJyFWjdovM0Rad4/P4aUPFtnkNjMjyMlMSYA==}
 
+  jwa@2.0.1:
+    resolution: {integrity: sha512-hRF04fqJIP8Abbkq5NKGN0Bbr3JxlQ+qhZufXVr0DvujKy93ZCbXZMHDL4EOtodSbCWxOqR8MS1tXA5hwqCXDg==}
+
+  jws@4.0.1:
+    resolution: {integrity: sha512-EKI/M/yqPncGUUh44xz0PxSidXFr/+r0pA70+gIYhjv+et7yxM+s29Y+VGDkovRofQem0fs7Uvf4+YmAdyRduA==}
+
   k8w-crypto@0.2.0:
     resolution: {integrity: sha512-M6u4eQ6CQaU5xO3s4zaUUp9G79xNDhXtTU0X7N80tDcBhQC5ggowlyOzj95v7WiCuk7xkV0aFsTmCpuf0m0djw==}
 
@@ -8176,9 +8204,15 @@ packages:
     resolution: {integrity: sha512-z+Uw/vLuy6gQe8cfaFWD7p0wVv8fJl3mbzXh33RS+0oW2wvUqiRXiQ69gLWSLpgB5/6sU+r6BlQR0MBILadqTQ==}
     deprecated: This package is deprecated. Use the optional chaining (?.) operator instead.
 
+  lodash.includes@4.3.0:
+    resolution: {integrity: sha512-W3Bx6mdkRTGtlJISOvVD/lbqjTlPPUDTMnlXZFnVwi9NKJ6tiAk6LVdlhZMm17VZisqhKcgzpO5Wz91PCt5b0w==}
+
   lodash.isarguments@3.1.0:
     resolution: {integrity: sha512-chi4NHZlZqZD18a0imDHnZPrDeBbTtVN7GXMwuGdRH9qotxAjYs3aVLKc7zNOG9eddR5Ksd8rvFEBc9SsggPpg==}
 
+  lodash.isboolean@3.0.3:
+    resolution: {integrity: sha512-Bz5mupy2SVbPHURB98VAcw+aHh4vRV5IPNhILUCsOzRmsTmSQ17jIuqopAentWoehktxGd9e/hbIXq980/1QJg==}
+
   lodash.isequal@4.5.0:
     resolution: {integrity: sha512-pDo3lu8Jhfjqls6GkMgpahsF9kCyayhgykjyLMNFTKWrpVdAQtYyB4muAMWozBB4ig/dtWAmsMxLEI8wuz+DYQ==}
     deprecated: This package is deprecated. Use require('node:util').isDeepStrictEqual instead.
@@ -8186,9 +8220,15 @@ packages:
   lodash.isfunction@3.0.9:
     resolution: {integrity: sha512-AirXNj15uRIMMPihnkInB4i3NHeb4iBtNg9WRWuK2o31S+ePwwNmDPaTL3o7dTJ+VXNZim7rFs4rxN4YU1oUJw==}
 
+  lodash.isinteger@4.0.4:
+    resolution: {integrity: sha512-DBwtEWN2caHQ9/imiNeEA5ys1JoRtRfY3d7V9wkqtbycnAmTvRRmbHKDV4a0EYc678/dia0jrte4tjYwVBaZUA==}
+
   lodash.ismatch@4.4.0:
     resolution: {integrity: sha512-fPMfXjGQEV9Xsq/8MTSgUf255gawYRbjwMyDbcvDhXgV7enSZA0hynz6vMPnpAb5iONEzBHBPsT+0zes5Z301g==}
 
+  lodash.isnumber@3.0.3:
+    resolution: {integrity: sha512-QYqzpfwO3/CWf3XP+Z+tkQsfaLL/EnUlXWVkIk5FUPc4sBdTehEqZONuyRt2P67PXAk+NXmTBcc97zw9t1FQrw==}
+
   lodash.isplainobject@4.0.6:
     resolution: {integrity: sha512-oSXzaWypCMHkPC3NvBEaPHf0KsA5mvPrOPgQWDsbg8n7orZ290M0BmC/jgRZ4vcJ6DTAhjrsSYgdsW/F+MFOBA==}
 
@@ -8207,6 +8247,9 @@ packages:
   lodash.mergewith@4.6.2:
     resolution: {integrity: sha512-GK3g5RPZWTRSeLSpgP8Xhra+pnjBC56q9FZYe1d5RN3TJ35dbkGy3YqBSMbyCrlbi+CM9Z3Jk5yTL7RCsqboyQ==}
 
+  lodash.once@4.1.1:
+    resolution: {integrity: sha512-Sb487aTOCr9drQVL8pIxOzVhafOjZN9UU54hiN8PU3uAiSV7lx1yYNpbNmex2PK6dSJoNTSJUUswT651yww3Mg==}
+
   lodash.snakecase@4.1.1:
     resolution: {integrity: sha512-QZ1d4xoBHYUeuouhEq3lk3Uq7ldgyFXGBhg04+oRLnIz8o9T65Eh+8YdroUwn846zchkA9yDsDl5CVVaV2nqYw==}
 
@@ -14889,6 +14932,11 @@ snapshots:
 
   '@types/json-schema@7.0.15': {}
 
+  '@types/jsonwebtoken@9.0.10':
+    dependencies:
+      '@types/ms': 2.1.0
+      '@types/node': 20.19.27
+
   '@types/linkify-it@5.0.0': {}
 
   '@types/markdown-it@14.1.2':
@@ -15159,6 +15207,14 @@ snapshots:
     optionalDependencies:
       vite: 5.4.21(@types/node@20.19.27)(lightningcss@1.30.2)(terser@5.44.1)
 
+  '@vitest/mocker@2.1.9(vite@5.4.21(@types/node@22.19.3)(lightningcss@1.30.2)(terser@5.44.1))':
+    dependencies:
+      '@vitest/spy': 2.1.9
+      estree-walker: 3.0.3
+      magic-string: 0.30.21
+    optionalDependencies:
+      vite: 5.4.21(@types/node@22.19.3)(lightningcss@1.30.2)(terser@5.44.1)
+
   '@vitest/pretty-format@2.1.9':
     dependencies:
       tinyrainbow: 1.2.0
@@ -15871,6 +15927,8 @@ snapshots:
 
   bson@6.10.4: {}
 
+  buffer-equal-constant-time@1.0.1: {}
+
   buffer-from@1.1.2: {}
 
   buffer@5.7.1:
@@ -16506,6 +16564,10 @@ snapshots:
 
   eastasianwidth@0.2.0: {}
 
+  ecdsa-sig-formatter@1.0.11:
+    dependencies:
+      safe-buffer: 5.2.1
+
   editorconfig@0.15.3:
     dependencies:
       commander: 2.20.3
@@ -18369,6 +18431,19 @@ snapshots:
 
   jsonparse@1.3.1: {}
 
+  jsonwebtoken@9.0.3:
+    dependencies:
+      jws: 4.0.1
+      lodash.includes: 4.3.0
+      lodash.isboolean: 3.0.3
+      lodash.isinteger: 4.0.4
+      lodash.isnumber: 3.0.3
+      lodash.isplainobject: 4.0.6
+      lodash.isstring: 4.0.1
+      lodash.once: 4.1.1
+      ms: 2.1.3
+      semver: 7.7.3
+
   jszip@3.10.1:
     dependencies:
       lie: 3.3.0
@@ -18380,6 +18455,17 @@ snapshots:
 
   just-diff@6.0.2: {}
 
+  jwa@2.0.1:
+    dependencies:
+      buffer-equal-constant-time: 1.0.1
+      ecdsa-sig-formatter: 1.0.11
+      safe-buffer: 5.2.1
+
+  jws@4.0.1:
+    dependencies:
+      jwa: 2.0.1
+      safe-buffer: 5.2.1
+
   k8w-crypto@0.2.0: {}
 
   k8w-extend-native@1.4.6:
@@ -18645,14 +18731,22 @@ snapshots:
 
   lodash.get@4.4.2: {}
 
+  lodash.includes@4.3.0: {}
+
   lodash.isarguments@3.1.0: {}
 
+  lodash.isboolean@3.0.3: {}
+
   lodash.isequal@4.5.0: {}
 
   lodash.isfunction@3.0.9: {}
 
+  lodash.isinteger@4.0.4: {}
+
   lodash.ismatch@4.4.0: {}
 
+  lodash.isnumber@3.0.3: {}
+
   lodash.isplainobject@4.0.6: {}
 
   lodash.isstring@4.0.1: {}
@@ -18665,6 +18759,8 @@ snapshots:
 
   lodash.mergewith@4.6.2: {}
 
+  lodash.once@4.1.1: {}
+
   lodash.snakecase@4.1.1: {}
 
   lodash.startcase@4.4.0: {}
@@ -22075,7 +22171,7 @@ snapshots:
   vitest@2.1.9(@types/node@22.19.3)(jsdom@20.0.3)(lightningcss@1.30.2)(terser@5.44.1):
     dependencies:
       '@vitest/expect': 2.1.9
-      '@vitest/mocker': 2.1.9(vite@5.4.21(@types/node@20.19.27)(lightningcss@1.30.2)(terser@5.44.1))
+      '@vitest/mocker': 2.1.9(vite@5.4.21(@types/node@22.19.3)(lightningcss@1.30.2)(terser@5.44.1))
       '@vitest/pretty-format': 2.1.9
       '@vitest/runner': 2.1.9
       '@vitest/snapshot': 2.1.9