939 lines
27 KiB
TypeScript
939 lines
27 KiB
TypeScript
import { Entity } from './Entity';
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import { EntityList } from './Utils/EntityList';
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import { IdentifierPool } from './Utils/IdentifierPool';
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import { EntitySystem } from './Systems/EntitySystem';
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import { ComponentStorageManager, ComponentRegistry } from './Core/ComponentStorage';
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import { QuerySystem } from './Core/QuerySystem';
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import { TypeSafeEventSystem } from './Core/EventSystem';
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import { EventBus } from './Core/EventBus';
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import { ReferenceTracker } from './Core/ReferenceTracker';
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import { IScene, ISceneConfig } from './IScene';
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import { getComponentInstanceTypeName, getSystemInstanceTypeName, getSystemMetadata } from "./Decorators";
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import { TypedQueryBuilder } from './Core/Query/TypedQuery';
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import { SceneSerializer, SceneSerializationOptions, SceneDeserializationOptions } from './Serialization/SceneSerializer';
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import { IncrementalSerializer, IncrementalSnapshot, IncrementalSerializationOptions } from './Serialization/IncrementalSerializer';
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import { ComponentPoolManager } from './Core/ComponentPool';
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import { PerformanceMonitor } from '../Utils/PerformanceMonitor';
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import { ServiceContainer, type ServiceType } from '../Core/ServiceContainer';
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import { createInstance, isInjectable, injectProperties } from '../Core/DI';
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import { isUpdatable, getUpdatableMetadata } from '../Core/DI/Decorators';
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import { createLogger } from '../Utils/Logger';
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/**
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* 游戏场景默认实现类
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*
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* 实现IScene接口，提供场景的基础功能。
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* 推荐使用组合而非继承的方式来构建自定义场景。
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*/
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export class Scene implements IScene {
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/**
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* 场景名称
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*
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* 用于标识和调试的友好名称。
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*/
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public name: string = "";
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/**
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* 场景自定义数据
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*
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* 用于存储场景级别的配置和状态数据。
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*/
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public readonly sceneData: Map<string, any> = new Map();
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/**
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* 场景中的实体集合
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*
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* 管理场景内所有实体的生命周期。
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*/
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public readonly entities: EntityList;
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/**
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* 实体ID池
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*
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* 用于分配和回收实体的唯一标识符。
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*/
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public readonly identifierPool: IdentifierPool;
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/**
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* 组件存储管理器
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*
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* 高性能的组件存储和查询系统。
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*/
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public readonly componentStorageManager: ComponentStorageManager;
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/**
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* 查询系统
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*
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* 基于位掩码的高性能实体查询系统。
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*/
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public readonly querySystem: QuerySystem;
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/**
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* 事件系统
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*
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* 类型安全的事件系统。
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*/
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public readonly eventSystem: TypeSafeEventSystem;
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/**
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* 引用追踪器
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*
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* 追踪Component中对Entity的引用，当Entity销毁时自动清理引用。
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*/
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public readonly referenceTracker: ReferenceTracker;
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/**
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* 服务容器
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*
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* 场景级别的依赖注入容器，用于管理EntitySystem和其他服务的生命周期。
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* 每个Scene拥有独立的服务容器，实现场景间的隔离。
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*/
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private readonly _services: ServiceContainer;
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/**
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* 日志记录器
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*/
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private readonly logger: ReturnType<typeof createLogger>;
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/**
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* 性能监控器
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*
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* 用于监控场景和系统的性能。可以在构造函数中注入，如果不提供则从Core获取。
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*/
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private readonly _performanceMonitor: PerformanceMonitor;
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/**
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* 场景是否已开始运行
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*/
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private _didSceneBegin: boolean = false;
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/**
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* 获取场景中所有已注册的EntitySystem
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*
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* 按updateOrder排序。
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*
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* @returns 系统列表
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*/
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public get systems(): EntitySystem[] {
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// 从ServiceContainer获取所有EntitySystem实例
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const services = this._services.getAll();
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const systems: EntitySystem[] = [];
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for (const service of services) {
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if (service instanceof EntitySystem) {
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systems.push(service);
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}
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}
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// 按updateOrder排序
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systems.sort((a, b) => a.updateOrder - b.updateOrder);
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return systems;
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}
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/**
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* 通过类型获取System实例
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*
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* @param systemType System类型
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* @returns System实例，如果未找到则返回null
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*
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* @example
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* ```typescript
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* const physics = scene.getSystem(PhysicsSystem);
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* if (physics) {
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* physics.doSomething();
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* }
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* ```
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*/
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public getSystem<T extends EntitySystem>(systemType: ServiceType<T>): T | null {
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return this._services.tryResolve(systemType) as T | null;
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}
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/**
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* 获取场景的服务容器
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*
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* 用于注册和解析场景级别的服务（如EntitySystem）。
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*
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* @example
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* ```typescript
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* // 注册服务
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* scene.services.registerSingleton(PhysicsSystem);
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*
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* // 解析服务
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* const physics = scene.services.resolve(PhysicsSystem);
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* ```
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*/
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public get services(): ServiceContainer {
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return this._services;
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}
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/**
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* 创建场景实例
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*/
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constructor(config?: ISceneConfig) {
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this.entities = new EntityList(this);
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this.identifierPool = new IdentifierPool();
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this.componentStorageManager = new ComponentStorageManager();
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this.querySystem = new QuerySystem();
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this.eventSystem = new TypeSafeEventSystem();
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this.referenceTracker = new ReferenceTracker();
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this._services = new ServiceContainer();
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this.logger = createLogger('Scene');
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// 从配置获取 PerformanceMonitor，如果未提供则创建一个新实例
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// Scene 应该是独立的，不依赖于 Core，通过构造函数参数明确依赖关系
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this._performanceMonitor = config?.performanceMonitor || new PerformanceMonitor();
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if (config?.name) {
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this.name = config.name;
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}
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if (!Entity.eventBus) {
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Entity.eventBus = new EventBus(false);
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}
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if (Entity.eventBus) {
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Entity.eventBus.onComponentAdded((data: unknown) => {
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this.eventSystem.emitSync('component:added', data);
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});
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}
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}
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/**
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* 初始化场景
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*
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* 在场景创建时调用，子类可以重写此方法来设置初始实体和组件。
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*/
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public initialize(): void {
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}
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/**
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* 场景开始运行时的回调
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*
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* 在场景开始运行时调用，可以在此方法中执行场景启动逻辑。
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*/
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public onStart(): void {
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}
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/**
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* 场景卸载时的回调
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*
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* 在场景被销毁时调用，可以在此方法中执行清理工作。
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*/
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public unload(): void {
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}
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/**
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* 开始场景，启动实体处理器等
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*
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* 这个方法会启动场景。它将启动实体处理器等，并调用onStart方法。
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*/
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public begin() {
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// 标记场景已开始运行并调用onStart方法
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this._didSceneBegin = true;
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this.onStart();
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}
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/**
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* 结束场景，清除实体、实体处理器等
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*
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* 这个方法会结束场景。它将移除所有实体，结束实体处理器等，并调用unload方法。
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*/
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public end() {
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// 标记场景已结束运行
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this._didSceneBegin = false;
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// 移除所有实体
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this.entities.removeAllEntities();
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// 清理查询系统中的实体引用和缓存
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this.querySystem.setEntities([]);
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// 清空组件存储
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this.componentStorageManager.clear();
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// 清空服务容器（会调用所有服务的dispose方法，包括所有EntitySystem）
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this._services.clear();
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// 调用卸载方法
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this.unload();
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}
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/**
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* 更新场景
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*/
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public update() {
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ComponentPoolManager.getInstance().update();
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this.entities.updateLists();
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// 更新所有EntitySystem
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const systems = this.systems;
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for (const system of systems) {
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if (system.enabled) {
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try {
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system.update();
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} catch (error) {
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this.logger.error(`Error in system ${system.constructor.name}.update():`, error);
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}
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}
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}
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// LateUpdate
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for (const system of systems) {
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if (system.enabled) {
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try {
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system.lateUpdate();
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} catch (error) {
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this.logger.error(`Error in system ${system.constructor.name}.lateUpdate():`, error);
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}
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}
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}
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}
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/**
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* 将实体添加到此场景，并返回它
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* @param name 实体名称
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*/
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public createEntity(name: string) {
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let entity = new Entity(name, this.identifierPool.checkOut());
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this.eventSystem.emitSync('entity:created', { entityName: name, entity, scene: this });
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return this.addEntity(entity);
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}
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/**
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* 清除所有EntitySystem的实体缓存
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* 当实体或组件发生变化时调用
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*/
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public clearSystemEntityCaches(): void {
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for (const system of this.systems) {
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system.clearEntityCache();
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}
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}
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/**
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* 在场景的实体列表中添加一个实体
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* @param entity 要添加的实体
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* @param deferCacheClear 是否延迟缓存清理（用于批量操作）
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*/
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public addEntity(entity: Entity, deferCacheClear: boolean = false) {
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this.entities.add(entity);
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entity.scene = this;
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// 将实体添加到查询系统（可延迟缓存清理）
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this.querySystem.addEntity(entity, deferCacheClear);
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// 清除系统缓存以确保系统能及时发现新实体
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if (!deferCacheClear) {
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this.clearSystemEntityCaches();
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}
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// 触发实体添加事件
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this.eventSystem.emitSync('entity:added', { entity, scene: this });
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return entity;
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}
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/**
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* 批量创建实体（高性能版本）
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* @param count 要创建的实体数量
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* @param namePrefix 实体名称前缀
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* @returns 创建的实体列表
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*/
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public createEntities(count: number, namePrefix: string = "Entity"): Entity[] {
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const entities: Entity[] = [];
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// 批量创建实体对象，不立即添加到系统
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for (let i = 0; i < count; i++) {
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const entity = new Entity(`${namePrefix}_${i}`, this.identifierPool.checkOut());
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entity.scene = this;
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entities.push(entity);
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}
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// 批量添加到实体列表
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for (const entity of entities) {
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this.entities.add(entity);
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}
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// 批量添加到查询系统（无重复检查，性能最优）
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this.querySystem.addEntitiesUnchecked(entities);
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// 批量触发事件（可选，减少事件开销）
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this.eventSystem.emitSync('entities:batch_added', { entities, scene: this, count });
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return entities;
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}
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/**
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* 批量销毁实体
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*/
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public destroyEntities(entities: Entity[]): void {
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if (entities.length === 0) return;
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for (const entity of entities) {
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entity._isDestroyed = true;
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}
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for (const entity of entities) {
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entity.removeAllComponents();
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}
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for (const entity of entities) {
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this.entities.remove(entity);
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this.querySystem.removeEntity(entity);
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}
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this.querySystem.clearCache();
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this.clearSystemEntityCaches();
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}
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/**
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* 从场景中删除所有实体
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*/
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public destroyAllEntities() {
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this.entities.removeAllEntities();
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this.querySystem.setEntities([]);
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}
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/**
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* 搜索并返回第一个具有名称的实体
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* @param name 实体名称
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*/
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public findEntity(name: string): Entity | null {
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return this.entities.findEntity(name);
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}
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/**
|
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* 根据ID查找实体
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* @param id 实体ID
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*/
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public findEntityById(id: number): Entity | null {
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return this.entities.findEntityById(id);
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}
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/**
|
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* 根据标签查找实体
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* @param tag 实体标签
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*/
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public findEntitiesByTag(tag: number): Entity[] {
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const result: Entity[] = [];
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for (const entity of this.entities.buffer) {
|
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if (entity.tag === tag) {
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result.push(entity);
|
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}
|
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}
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return result;
|
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}
|
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|
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/**
|
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* 根据名称查找实体（别名方法）
|
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* @param name 实体名称
|
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*/
|
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public getEntityByName(name: string): Entity | null {
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return this.findEntity(name);
|
||
}
|
||
|
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/**
|
||
* 根据标签查找实体（别名方法）
|
||
* @param tag 实体标签
|
||
*/
|
||
public getEntitiesByTag(tag: number): Entity[] {
|
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return this.findEntitiesByTag(tag);
|
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}
|
||
|
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/**
|
||
* 查询拥有所有指定组件的实体
|
||
*
|
||
* @param componentTypes - 组件类型数组
|
||
* @returns 查询结果
|
||
*
|
||
* @example
|
||
* ```typescript
|
||
* const result = scene.queryAll(Position, Velocity);
|
||
* for (const entity of result.entities) {
|
||
* const pos = entity.getComponent(Position);
|
||
* const vel = entity.getComponent(Velocity);
|
||
* }
|
||
* ```
|
||
*/
|
||
public queryAll(...componentTypes: any[]): { entities: readonly Entity[] } {
|
||
return this.querySystem.queryAll(...componentTypes);
|
||
}
|
||
|
||
/**
|
||
* 查询拥有任意一个指定组件的实体
|
||
*
|
||
* @param componentTypes - 组件类型数组
|
||
* @returns 查询结果
|
||
*/
|
||
public queryAny(...componentTypes: any[]): { entities: readonly Entity[] } {
|
||
return this.querySystem.queryAny(...componentTypes);
|
||
}
|
||
|
||
/**
|
||
* 查询不包含指定组件的实体
|
||
*
|
||
* @param componentTypes - 组件类型数组
|
||
* @returns 查询结果
|
||
*/
|
||
public queryNone(...componentTypes: any[]): { entities: readonly Entity[] } {
|
||
return this.querySystem.queryNone(...componentTypes);
|
||
}
|
||
|
||
/**
|
||
* 创建类型安全的查询构建器
|
||
*
|
||
* @returns 查询构建器，支持链式调用
|
||
*
|
||
* @example
|
||
* ```typescript
|
||
* // 使用查询构建器
|
||
* const matcher = scene.query()
|
||
* .withAll(Position, Velocity)
|
||
* .withNone(Disabled)
|
||
* .buildMatcher();
|
||
*
|
||
* // 在System中使用
|
||
* class MovementSystem extends EntitySystem {
|
||
* constructor() {
|
||
* super(matcher);
|
||
* }
|
||
* }
|
||
* ```
|
||
*/
|
||
public query(): TypedQueryBuilder {
|
||
return new TypedQueryBuilder();
|
||
}
|
||
|
||
/**
|
||
* 在场景中添加一个EntitySystem处理器
|
||
*
|
||
* 支持两种使用方式：
|
||
* 1. 传入类型（推荐）：自动使用DI创建实例，支持@Injectable和@Inject装饰器
|
||
* 2. 传入实例：直接使用提供的实例
|
||
*
|
||
* @param systemTypeOrInstance 系统类型或系统实例
|
||
* @returns 添加的处理器实例
|
||
*
|
||
* @example
|
||
* ```typescript
|
||
* // 方式1：传入类型，自动DI（推荐）
|
||
* @Injectable()
|
||
* class PhysicsSystem extends EntitySystem {
|
||
* constructor(@Inject(CollisionSystem) private collision: CollisionSystem) {
|
||
* super(Matcher.of(Transform));
|
||
* }
|
||
* }
|
||
* scene.addEntityProcessor(PhysicsSystem);
|
||
*
|
||
* // 方式2：传入实例
|
||
* const system = new MySystem();
|
||
* scene.addEntityProcessor(system);
|
||
* ```
|
||
*/
|
||
public addEntityProcessor<T extends EntitySystem>(
|
||
systemTypeOrInstance: ServiceType<T> | T
|
||
): T {
|
||
let system: T;
|
||
let constructor: any;
|
||
|
||
if (typeof systemTypeOrInstance === 'function') {
|
||
constructor = systemTypeOrInstance;
|
||
|
||
if (this._services.isRegistered(constructor)) {
|
||
return this._services.resolve(constructor) as T;
|
||
}
|
||
|
||
if (isInjectable(constructor)) {
|
||
system = createInstance(constructor, this._services) as T;
|
||
} else {
|
||
system = new (constructor as any)() as T;
|
||
}
|
||
} else {
|
||
system = systemTypeOrInstance;
|
||
constructor = system.constructor;
|
||
|
||
if (this._services.isRegistered(constructor)) {
|
||
return system;
|
||
}
|
||
}
|
||
|
||
system.scene = this;
|
||
|
||
system.setPerformanceMonitor(this._performanceMonitor);
|
||
|
||
const metadata = getSystemMetadata(constructor);
|
||
if (metadata?.updateOrder !== undefined) {
|
||
system.setUpdateOrder(metadata.updateOrder);
|
||
}
|
||
if (metadata?.enabled !== undefined) {
|
||
system.enabled = metadata.enabled;
|
||
}
|
||
|
||
this._services.registerInstance(constructor, system);
|
||
|
||
injectProperties(system, this._services);
|
||
|
||
system.initialize();
|
||
|
||
return system;
|
||
}
|
||
|
||
/**
|
||
* 批量注册EntitySystem到场景（使用DI）
|
||
*
|
||
* 自动按照依赖顺序注册多个System。
|
||
* 所有System必须使用@Injectable装饰器标记。
|
||
*
|
||
* @param systemTypes System类型数组
|
||
* @returns 注册的System实例数组
|
||
*
|
||
* @example
|
||
* ```typescript
|
||
* @Injectable()
|
||
* @ECSSystem('Collision', { updateOrder: 5 })
|
||
* class CollisionSystem extends EntitySystem implements IService {
|
||
* constructor() { super(Matcher.of(Collider)); }
|
||
* dispose() {}
|
||
* }
|
||
*
|
||
* @Injectable()
|
||
* @ECSSystem('Physics', { updateOrder: 10 })
|
||
* class PhysicsSystem extends EntitySystem implements IService {
|
||
* constructor(@Inject(CollisionSystem) private collision: CollisionSystem) {
|
||
* super(Matcher.of(Transform, RigidBody));
|
||
* }
|
||
* dispose() {}
|
||
* }
|
||
*
|
||
* // 批量注册（自动解析依赖顺序）
|
||
* scene.registerSystems([
|
||
* CollisionSystem,
|
||
* PhysicsSystem, // 自动注入CollisionSystem
|
||
* RenderSystem
|
||
* ]);
|
||
* ```
|
||
*/
|
||
public registerSystems(systemTypes: Array<ServiceType<EntitySystem>>): EntitySystem[] {
|
||
const registeredSystems: EntitySystem[] = [];
|
||
|
||
for (const systemType of systemTypes) {
|
||
const system = this.addEntityProcessor(systemType);
|
||
registeredSystems.push(system);
|
||
}
|
||
|
||
return registeredSystems;
|
||
}
|
||
|
||
/**
|
||
* 添加系统到场景（addEntityProcessor的别名）
|
||
* @param system 系统
|
||
*/
|
||
public addSystem(system: EntitySystem) {
|
||
return this.addEntityProcessor(system);
|
||
}
|
||
|
||
/**
|
||
* 从场景中删除EntitySystem处理器
|
||
* @param processor 要删除的处理器
|
||
*/
|
||
public removeEntityProcessor(processor: EntitySystem): void {
|
||
const constructor = processor.constructor as any;
|
||
|
||
// 从ServiceContainer移除
|
||
this._services.unregister(constructor);
|
||
|
||
// 重置System状态
|
||
processor.reset();
|
||
}
|
||
|
||
/**
|
||
* 从场景中删除系统（removeEntityProcessor的别名）
|
||
* @param system 系统
|
||
*/
|
||
public removeSystem(system: EntitySystem) {
|
||
this.removeEntityProcessor(system);
|
||
}
|
||
|
||
/**
|
||
* 获取指定类型的EntitySystem处理器
|
||
*
|
||
* @deprecated 推荐使用依赖注入代替此方法。使用 `scene.services.resolve(SystemType)` 或在System构造函数中使用 `@Inject(SystemType)` 装饰器。
|
||
*
|
||
* @param type 处理器类型
|
||
* @returns 处理器实例，如果未找到则返回null
|
||
*
|
||
* @example
|
||
* ```typescript
|
||
* @Injectable()
|
||
* class MySystem extends EntitySystem {
|
||
* constructor(@Inject(PhysicsSystem) private physics: PhysicsSystem) {
|
||
* super();
|
||
* }
|
||
* }
|
||
* ```
|
||
*/
|
||
public getEntityProcessor<T extends EntitySystem>(type: new (...args: unknown[]) => T): T | null {
|
||
return this._services.tryResolve(type as any) as T | null;
|
||
}
|
||
|
||
/**
|
||
* 获取场景统计信息
|
||
*/
|
||
public getStats(): {
|
||
entityCount: number;
|
||
processorCount: number;
|
||
componentStorageStats: Map<string, any>;
|
||
} {
|
||
return {
|
||
entityCount: this.entities.count,
|
||
processorCount: this.systems.length,
|
||
componentStorageStats: this.componentStorageManager.getAllStats()
|
||
};
|
||
}
|
||
|
||
|
||
/**
|
||
* 获取场景的调试信息
|
||
*/
|
||
public getDebugInfo(): {
|
||
name: string;
|
||
entityCount: number;
|
||
processorCount: number;
|
||
isRunning: boolean;
|
||
entities: Array<{
|
||
name: string;
|
||
id: number;
|
||
componentCount: number;
|
||
componentTypes: string[];
|
||
}>;
|
||
processors: Array<{
|
||
name: string;
|
||
updateOrder: number;
|
||
entityCount: number;
|
||
}>;
|
||
componentStats: Map<string, any>;
|
||
} {
|
||
const systems = this.systems;
|
||
return {
|
||
name: this.name || this.constructor.name,
|
||
entityCount: this.entities.count,
|
||
processorCount: systems.length,
|
||
isRunning: this._didSceneBegin,
|
||
entities: this.entities.buffer.map(entity => ({
|
||
name: entity.name,
|
||
id: entity.id,
|
||
componentCount: entity.components.length,
|
||
componentTypes: entity.components.map(c => getComponentInstanceTypeName(c))
|
||
})),
|
||
processors: systems.map(processor => ({
|
||
name: getSystemInstanceTypeName(processor),
|
||
updateOrder: processor.updateOrder,
|
||
entityCount: (processor as any)._entities?.length || 0
|
||
})),
|
||
componentStats: this.componentStorageManager.getAllStats()
|
||
};
|
||
}
|
||
|
||
/**
|
||
* 序列化场景
|
||
*
|
||
* 将场景及其所有实体、组件序列化为JSON字符串或二进制Uint8Array
|
||
*
|
||
* @param options 序列化选项
|
||
* @returns 序列化后的数据（JSON字符串或二进制Uint8Array）
|
||
*
|
||
* @example
|
||
* ```typescript
|
||
* // JSON格式
|
||
* const jsonData = scene.serialize({
|
||
* format: 'json',
|
||
* pretty: true
|
||
* });
|
||
*
|
||
* // 二进制格式（更小、更快）
|
||
* const binaryData = scene.serialize({
|
||
* format: 'binary'
|
||
* });
|
||
* ```
|
||
*/
|
||
public serialize(options?: SceneSerializationOptions): string | Uint8Array {
|
||
return SceneSerializer.serialize(this, options);
|
||
}
|
||
|
||
/**
|
||
* 反序列化场景
|
||
*
|
||
* 从序列化数据恢复场景状态
|
||
*
|
||
* @param saveData 序列化的数据（JSON字符串或二进制Uint8Array）
|
||
* @param options 反序列化选项
|
||
*
|
||
* @example
|
||
* ```typescript
|
||
* // 从JSON恢复（自动从ComponentRegistry获取组件类型）
|
||
* scene.deserialize(jsonData, {
|
||
* strategy: 'replace'
|
||
* });
|
||
*
|
||
* // 从二进制恢复
|
||
* scene.deserialize(binaryData, {
|
||
* strategy: 'replace'
|
||
* });
|
||
* ```
|
||
*/
|
||
public deserialize(saveData: string | Uint8Array, options?: SceneDeserializationOptions): void {
|
||
SceneSerializer.deserialize(this, saveData, options);
|
||
}
|
||
|
||
// ==================== 增量序列化 API ====================
|
||
|
||
/** 增量序列化的基础快照 */
|
||
private _incrementalBaseSnapshot?: any;
|
||
|
||
/**
|
||
* 创建增量序列化的基础快照
|
||
*
|
||
* 在需要进行增量序列化前，先调用此方法创建基础快照
|
||
*
|
||
* @param options 序列化选项
|
||
*
|
||
* @example
|
||
* ```typescript
|
||
* // 创建基础快照
|
||
* scene.createIncrementalSnapshot();
|
||
*
|
||
* // 进行一些修改...
|
||
* entity.addComponent(new PositionComponent(100, 200));
|
||
*
|
||
* // 计算增量变更
|
||
* const incremental = scene.serializeIncremental();
|
||
* ```
|
||
*/
|
||
public createIncrementalSnapshot(options?: IncrementalSerializationOptions): void {
|
||
this._incrementalBaseSnapshot = IncrementalSerializer.createSnapshot(this, options);
|
||
}
|
||
|
||
/**
|
||
* 增量序列化场景
|
||
*
|
||
* 只序列化相对于基础快照的变更部分
|
||
*
|
||
* @param options 序列化选项
|
||
* @returns 增量快照对象
|
||
*
|
||
* @example
|
||
* ```typescript
|
||
* // 创建基础快照
|
||
* scene.createIncrementalSnapshot();
|
||
*
|
||
* // 修改场景
|
||
* const entity = scene.createEntity('NewEntity');
|
||
* entity.addComponent(new PositionComponent(50, 100));
|
||
*
|
||
* // 获取增量变更
|
||
* const incremental = scene.serializeIncremental();
|
||
* console.log(`变更数量: ${incremental.entityChanges.length}`);
|
||
*
|
||
* // 序列化为JSON
|
||
* const json = IncrementalSerializer.serializeIncremental(incremental);
|
||
* ```
|
||
*/
|
||
public serializeIncremental(options?: IncrementalSerializationOptions): IncrementalSnapshot {
|
||
if (!this._incrementalBaseSnapshot) {
|
||
throw new Error('必须先调用 createIncrementalSnapshot() 创建基础快照');
|
||
}
|
||
|
||
return IncrementalSerializer.computeIncremental(
|
||
this,
|
||
this._incrementalBaseSnapshot,
|
||
options
|
||
);
|
||
}
|
||
|
||
/**
|
||
* 应用增量变更到场景
|
||
*
|
||
* @param incremental 增量快照数据（IncrementalSnapshot对象、JSON字符串或二进制Uint8Array）
|
||
* @param componentRegistry 组件类型注册表（可选，默认使用全局注册表）
|
||
*
|
||
* @example
|
||
* ```typescript
|
||
* // 应用增量变更对象
|
||
* scene.applyIncremental(incrementalSnapshot);
|
||
*
|
||
* // 从JSON字符串应用
|
||
* const jsonData = IncrementalSerializer.serializeIncremental(snapshot, { format: 'json' });
|
||
* scene.applyIncremental(jsonData);
|
||
*
|
||
* // 从二进制Uint8Array应用
|
||
* const binaryData = IncrementalSerializer.serializeIncremental(snapshot, { format: 'binary' });
|
||
* scene.applyIncremental(binaryData);
|
||
* ```
|
||
*/
|
||
public applyIncremental(
|
||
incremental: IncrementalSnapshot | string | Uint8Array,
|
||
componentRegistry?: Map<string, any>
|
||
): void {
|
||
const isSerializedData = typeof incremental === 'string' ||
|
||
incremental instanceof Uint8Array;
|
||
|
||
const snapshot = isSerializedData
|
||
? IncrementalSerializer.deserializeIncremental(incremental as string | Uint8Array)
|
||
: incremental as IncrementalSnapshot;
|
||
|
||
const registry = componentRegistry || ComponentRegistry.getAllComponentNames() as Map<string, any>;
|
||
|
||
IncrementalSerializer.applyIncremental(this, snapshot, registry);
|
||
}
|
||
|
||
/**
|
||
* 更新增量快照基准
|
||
*
|
||
* 将当前场景状态设为新的增量序列化基准
|
||
*
|
||
* @param options 序列化选项
|
||
*
|
||
* @example
|
||
* ```typescript
|
||
* // 创建初始快照
|
||
* scene.createIncrementalSnapshot();
|
||
*
|
||
* // 进行一些修改并序列化
|
||
* const incremental1 = scene.serializeIncremental();
|
||
*
|
||
* // 更新基准，之后的增量将基于当前状态
|
||
* scene.updateIncrementalSnapshot();
|
||
*
|
||
* // 继续修改
|
||
* const incremental2 = scene.serializeIncremental();
|
||
* ```
|
||
*/
|
||
public updateIncrementalSnapshot(options?: IncrementalSerializationOptions): void {
|
||
this.createIncrementalSnapshot(options);
|
||
}
|
||
|
||
/**
|
||
* 清除增量快照
|
||
*
|
||
* 释放快照占用的内存
|
||
*/
|
||
public clearIncrementalSnapshot(): void {
|
||
this._incrementalBaseSnapshot = undefined;
|
||
}
|
||
|
||
/**
|
||
* 检查是否有增量快照
|
||
*
|
||
* @returns 如果已创建增量快照返回true
|
||
*/
|
||
public hasIncrementalSnapshot(): boolean {
|
||
return this._incrementalBaseSnapshot !== undefined;
|
||
}
|
||
} |