支持先加入实体后加入系统以让matcher进行实体匹配/优化行为树节点效果及逻辑

src/Core.ts

@@ -7,7 +7,7 @@ import { PoolManager } from './Utils/Pool';
 import { ECSFluentAPI, createECSAPI } from './ECS/Core/FluentAPI';
 import { Scene } from './ECS/Scene';
 import { DebugReporter } from './Utils/DebugReporter';
-import { ICoreConfig, IECSDebugConfig } from './Types';
+import { ICoreConfig, IECSDebugConfig } from './types';
 
 /**
  * 游戏引擎核心类

src/ECS/Component.ts

@@ -1,4 +1,4 @@
-import type { IComponent } from '../Types';
+import type { IComponent } from '../types';
 
 /**
  * 游戏组件基类

src/ECS/Core/EntityManager.ts

@@ -6,8 +6,6 @@ import { ComponentIndexManager, IndexType } from './ComponentIndex';
 import { ArchetypeSystem } from './ArchetypeSystem';
 import { DirtyTrackingSystem, DirtyFlag } from './DirtyTrackingSystem';
 import { EventBus } from './EventBus';
-import { ECSEventType } from '../CoreEvents';
-import { IEntityEventData, IComponentEventData } from '../../Types';
 
 /**
  * 实体查询构建器

src/ECS/Core/EventBus.ts

@@ -8,7 +8,7 @@ import {
     ISystemEventData,
     ISceneEventData,
     IPerformanceEventData
-} from '../../Types';
+} from '../../types';
 import { 
     TypeSafeEventSystem, 
     EventListenerConfig, 

src/ECS/Entity.ts

@@ -1,8 +1,6 @@
 import { Component } from './Component';
 import { ComponentRegistry, ComponentType } from './Core/ComponentStorage';
 import { EventBus } from './Core/EventBus';
-import { ECSEventType } from './CoreEvents';
-import { IComponentEventData } from '../Types';
 
 /**
  * 实体比较器

src/ECS/Systems/EntitySystem.ts

@@ -3,7 +3,7 @@ import { Core } from '../../Core';
 import { Matcher } from '../Utils/Matcher';
 import { PerformanceMonitor } from '../../Utils/PerformanceMonitor';
 import type { Scene } from '../Scene';
-import type { ISystemBase } from '../../Types';
+import type { ISystemBase } from '../../types';
 
 /**
  * 实体系统的基类
@@ -115,10 +115,17 @@ export abstract class EntitySystem implements ISystemBase {
     /**
      * 系统初始化
      * 
-     * 在系统创建时调用，子类可以重写此方法进行初始化操作。
+     * 在系统创建时调用，自动检查场景中已存在的实体是否匹配此系统。
+     * 子类可以重写此方法进行额外的初始化操作。
      */
     public initialize(): void {
-        // 子类可以重写此方法
+        if (this.scene?.entities?.buffer) {
+            for (const entity of this.scene.entities.buffer) {
+                this.onChanged(entity);
+            }
+        }
+        
+        // 子类可以重写此方法进行额外初始化
     }
 
     /**

src/Utils/DebugReporter.ts

@@ -6,7 +6,7 @@ import {
     IPerformanceDebugData, 
     IComponentDebugData, 
     ISceneDebugData 
-} from '../Types';
+} from '../types';
 import { Core } from '../Core';
 import { Time } from './Time';
 

src/index.ts

@@ -18,4 +18,4 @@ export * from './ECS';
 
 // 工具类和类型定义
 export * from './Utils';
-export * from './Types'; 
+export * from './types';