新增poolcomponent 对象池组件

source/src/ECS/Components/ComponentPool.ts

@@ -0,0 +1,22 @@
+class ComponentPool<T extends PooledComponent>{
+    private _cache: T[];
+    private _type: any;
+
+    constructor(typeClass: any){
+        this._type = typeClass;
+        this._cache = [];
+    }
+
+    public obtain(): T{
+        try {
+            return this._cache.length > 0 ? this._cache.shift() : new this._type();
+        } catch(err){
+            throw new Error(this._type + err);
+        }
+    }
+
+    public free(component: T){
+        component.reset();
+        this._cache.push(component);
+    }
+}

source/src/ECS/Components/PooledComponent.ts

@@ -0,0 +1,4 @@
+/** 回收实例的组件类型。 */
+abstract class PooledComponent extends Component {
+    public abstract reset();
+}