新增world概念（多world管理多scene概念）现在支持多个world多个scene同时更新
This commit is contained in:
YHH
504
packages/core/src/ECS/World.ts
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504
packages/core/src/ECS/World.ts
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import { IScene } from './IScene';
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import { Scene } from './Scene';
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import { createLogger } from '../Utils/Logger';
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const logger = createLogger('World');
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/**
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* 全局系统接口
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* 全局系统是在World级别运行的系统，不依赖特定Scene
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*/
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export interface IGlobalSystem {
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/**
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* 系统名称
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*/
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readonly name: string;
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/**
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* 初始化系统
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*/
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initialize?(): void;
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/**
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* 更新系统
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*/
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update(deltaTime?: number): void;
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/**
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* 重置系统
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*/
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reset?(): void;
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/**
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* 销毁系统
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*/
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destroy?(): void;
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}
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/**
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* World配置接口
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*/
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export interface IWorldConfig {
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/**
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* World名称
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*/
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name?: string;
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/**
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* 是否启用调试模式
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*/
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debug?: boolean;
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/**
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* 最大Scene数量限制
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*/
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maxScenes?: number;
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/**
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* 是否自动清理空Scene
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*/
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autoCleanup?: boolean;
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}
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/**
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* World类 - ECS世界管理器
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*
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* World是Scene的容器，每个World可以管理多个Scene。
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* 这种设计允许创建独立的游戏世界，如：
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* - 游戏房间（每个房间一个World）
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* - 不同的游戏模式
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* - 独立的模拟环境
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*
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* @example
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* ```typescript
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* // 创建游戏房间的World
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* const roomWorld = new World({ name: 'Room_001' });
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*
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* // 在World中创建Scene
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* const gameScene = roomWorld.createScene('game', new Scene());
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* const uiScene = roomWorld.createScene('ui', new Scene());
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*
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* // 更新整个World
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* roomWorld.update(deltaTime);
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* ```
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*/
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export class World {
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public readonly name: string;
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private readonly _config: IWorldConfig;
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private readonly _scenes: Map<string, IScene> = new Map();
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private readonly _activeScenes: Set<string> = new Set();
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private readonly _globalSystems: IGlobalSystem[] = [];
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private _isActive: boolean = false;
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private _createdAt: number;
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constructor(config: IWorldConfig = {}) {
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this._config = {
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name: 'World',
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debug: false,
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maxScenes: 10,
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autoCleanup: true,
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...config
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};
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this.name = this._config.name!;
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this._createdAt = Date.now();
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logger.info(`创建World: ${this.name}`);
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}
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// ===== Scene管理 =====
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/**
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* 创建并添加Scene到World
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*/
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public createScene<T extends IScene>(sceneId: string, sceneInstance?: T): T {
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if (this._scenes.has(sceneId)) {
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throw new Error(`Scene ID '${sceneId}' 已存在于World '${this.name}' 中`);
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}
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if (this._scenes.size >= this._config.maxScenes!) {
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throw new Error(`World '${this.name}' 已达到最大Scene数量限制: ${this._config.maxScenes}`);
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}
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// 如果没有提供Scene实例，创建默认Scene
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const scene = sceneInstance || (new Scene() as unknown as T);
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// 设置Scene的标识
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if ('id' in scene) {
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(scene as any).id = sceneId;
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}
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if ('name' in scene && !scene.name) {
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scene.name = sceneId;
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}
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this._scenes.set(sceneId, scene);
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// 初始化Scene
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scene.initialize();
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logger.info(`在World '${this.name}' 中创建Scene: ${sceneId}`);
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return scene;
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}
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/**
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* 移除Scene
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*/
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public removeScene(sceneId: string): boolean {
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const scene = this._scenes.get(sceneId);
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if (!scene) {
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return false;
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}
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// 如果Scene正在运行，先停止它
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if (this._activeScenes.has(sceneId)) {
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this.setSceneActive(sceneId, false);
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}
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// 清理Scene资源
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scene.end();
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this._scenes.delete(sceneId);
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logger.info(`从World '${this.name}' 中移除Scene: ${sceneId}`);
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return true;
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}
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/**
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* 获取Scene
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*/
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public getScene<T extends IScene>(sceneId: string): T | null {
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return this._scenes.get(sceneId) as T || null;
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}
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/**
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* 获取所有Scene ID
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*/
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public getSceneIds(): string[] {
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return Array.from(this._scenes.keys());
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}
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/**
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* 获取所有Scene
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*/
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public getAllScenes(): IScene[] {
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return Array.from(this._scenes.values());
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}
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/**
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* 设置Scene激活状态
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*/
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public setSceneActive(sceneId: string, active: boolean): void {
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const scene = this._scenes.get(sceneId);
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if (!scene) {
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logger.warn(`Scene '${sceneId}' 不存在于World '${this.name}' 中`);
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return;
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}
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if (active) {
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this._activeScenes.add(sceneId);
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// 启动Scene
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if (scene.begin) {
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scene.begin();
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}
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logger.debug(`在World '${this.name}' 中激活Scene: ${sceneId}`);
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} else {
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this._activeScenes.delete(sceneId);
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// 可选择性地停止Scene，或者让它继续运行但不更新
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logger.debug(`在World '${this.name}' 中停用Scene: ${sceneId}`);
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}
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}
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/**
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* 检查Scene是否激活
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*/
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public isSceneActive(sceneId: string): boolean {
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return this._activeScenes.has(sceneId);
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}
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/**
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* 获取活跃Scene数量
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*/
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public getActiveSceneCount(): number {
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return this._activeScenes.size;
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}
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// ===== 全局System管理 =====
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/**
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* 添加全局System
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* 全局System会在所有激活Scene之前更新
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*/
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public addGlobalSystem<T extends IGlobalSystem>(system: T): T {
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if (this._globalSystems.includes(system)) {
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return system;
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}
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this._globalSystems.push(system);
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if (system.initialize) {
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system.initialize();
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}
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logger.debug(`在World '${this.name}' 中添加全局System: ${system.name}`);
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return system;
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}
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/**
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* 移除全局System
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*/
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public removeGlobalSystem(system: IGlobalSystem): boolean {
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const index = this._globalSystems.indexOf(system);
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if (index === -1) {
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return false;
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}
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this._globalSystems.splice(index, 1);
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if (system.reset) {
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system.reset();
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}
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logger.debug(`从World '${this.name}' 中移除全局System: ${system.name}`);
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return true;
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}
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/**
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* 获取全局System
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*/
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public getGlobalSystem<T extends IGlobalSystem>(type: new (...args: any[]) => T): T | null {
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for (const system of this._globalSystems) {
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if (system instanceof type) {
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return system as T;
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}
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}
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return null;
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}
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// ===== World生命周期 =====
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/**
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* 启动World
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*/
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public start(): void {
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if (this._isActive) {
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return;
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}
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this._isActive = true;
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// 启动所有全局System
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for (const system of this._globalSystems) {
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if (system.initialize) {
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system.initialize();
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}
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}
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logger.info(`启动World: ${this.name}`);
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}
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/**
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* 停止World
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*/
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public stop(): void {
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if (!this._isActive) {
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return;
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}
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// 停止所有Scene
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for (const sceneId of this._activeScenes) {
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this.setSceneActive(sceneId, false);
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}
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// 重置所有全局System
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for (const system of this._globalSystems) {
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if (system.reset) {
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system.reset();
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}
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}
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this._isActive = false;
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logger.info(`停止World: ${this.name}`);
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}
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/**
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* 更新World中的全局System
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* 注意：此方法由Core.update()调用，不应直接调用
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*/
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public updateGlobalSystems(): void {
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if (!this._isActive) {
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return;
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}
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// 更新全局System
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for (const system of this._globalSystems) {
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if (system.update) {
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system.update();
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}
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}
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}
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/**
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* 更新World中的所有激活Scene
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* 注意：此方法由Core.update()调用，不应直接调用
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*/
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public updateScenes(): void {
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if (!this._isActive) {
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return;
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}
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// 更新所有激活的Scene
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for (const sceneId of this._activeScenes) {
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const scene = this._scenes.get(sceneId);
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if (scene && scene.update) {
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scene.update();
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}
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}
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// 自动清理（如果启用）
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if (this._config.autoCleanup && this.shouldAutoCleanup()) {
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this.cleanup();
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}
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}
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/**
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* 销毁World
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*/
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public destroy(): void {
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logger.info(`销毁World: ${this.name}`);
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// 停止World
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this.stop();
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// 销毁所有Scene
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const sceneIds = Array.from(this._scenes.keys());
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for (const sceneId of sceneIds) {
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this.removeScene(sceneId);
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}
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// 清理全局System
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for (const system of this._globalSystems) {
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if (system.destroy) {
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system.destroy();
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} else if (system.reset) {
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system.reset();
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}
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}
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this._globalSystems.length = 0;
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this._scenes.clear();
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this._activeScenes.clear();
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}
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// ===== 状态信息 =====
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/**
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* 获取World状态
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*/
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public getStatus() {
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return {
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name: this.name,
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isActive: this._isActive,
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sceneCount: this._scenes.size,
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activeSceneCount: this._activeScenes.size,
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globalSystemCount: this._globalSystems.length,
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createdAt: this._createdAt,
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config: { ...this._config },
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scenes: Array.from(this._scenes.keys()).map(sceneId => ({
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id: sceneId,
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isActive: this._activeScenes.has(sceneId),
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name: this._scenes.get(sceneId)?.name || sceneId
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}))
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};
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}
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/**
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* 获取World统计信息
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*/
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public getStats() {
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const stats = {
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totalEntities: 0,
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totalSystems: this._globalSystems.length,
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memoryUsage: 0,
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performance: {
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averageUpdateTime: 0,
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maxUpdateTime: 0
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}
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};
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// 统计所有Scene的实体数量
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for (const scene of this._scenes.values()) {
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if (scene.entities) {
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stats.totalEntities += scene.entities.count;
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}
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if (scene.systems) {
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stats.totalSystems += scene.systems.length;
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}
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}
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return stats;
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}
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// ===== 私有方法 =====
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/**
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* 检查是否应该执行自动清理
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*/
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private shouldAutoCleanup(): boolean {
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// 简单的清理策略：如果有空Scene且超过5分钟没有实体
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const currentTime = Date.now();
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const cleanupThreshold = 5 * 60 * 1000; // 5分钟
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for (const [sceneId, scene] of this._scenes) {
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if (!this._activeScenes.has(sceneId) &&
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scene.entities &&
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scene.entities.count === 0 &&
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(currentTime - this._createdAt) > cleanupThreshold) {
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return true;
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}
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}
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return false;
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}
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/**
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* 执行清理操作
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*/
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private cleanup(): void {
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const sceneIds = Array.from(this._scenes.keys());
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const currentTime = Date.now();
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const cleanupThreshold = 5 * 60 * 1000; // 5分钟
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for (const sceneId of sceneIds) {
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const scene = this._scenes.get(sceneId);
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if (scene &&
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!this._activeScenes.has(sceneId) &&
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scene.entities &&
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scene.entities.count === 0 &&
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(currentTime - this._createdAt) > cleanupThreshold) {
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this.removeScene(sceneId);
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logger.debug(`自动清理空Scene: ${sceneId} from World ${this.name}`);
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}
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}
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}
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// ===== 访问器 =====
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/**
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* 检查World是否激活
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*/
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public get isActive(): boolean {
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return this._isActive;
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}
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/**
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* 获取Scene数量
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*/
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public get sceneCount(): number {
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return this._scenes.size;
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}
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/**
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* 获取创建时间
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*/
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public get createdAt(): number {
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return this._createdAt;
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}
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}
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