listpool根据type划分池

source/src/Utils/Collections/ListPool.ts

@@ -3,17 +3,18 @@ module es {
      * 可以用于列表池的简单类
      */
     export class ListPool {
-        private static readonly _objectQueue = [];
+        private static readonly _objectQueue: Map<any, any[]> = new Map();
 
         /**
          * 预热缓存，使用最大的cacheCount对象填充缓存
          * @param cacheCount
          */
-        public static warmCache(cacheCount: number) {
-            cacheCount -= this._objectQueue.length;
+        public static warmCache<T>(type: new (...args) => T, cacheCount: number) {
+            this.checkCreate(type);
+            cacheCount -= this._objectQueue.get(type).length;
             if (cacheCount > 0) {
                 for (let i = 0; i < cacheCount; i++) {
-                    this._objectQueue.unshift([]);
+                    this._objectQueue.get(type).unshift([]);
                 }
             }
         }
@@ -22,24 +23,27 @@ module es {
          * 将缓存修剪为cacheCount项目
          * @param cacheCount
          */
-        public static trimCache(cacheCount) {
-            while (cacheCount > this._objectQueue.length)
-                this._objectQueue.shift();
+        public static trimCache<T>(type: new (...args) => T, cacheCount: number) {
+            this.checkCreate(type);
+            while (cacheCount > this._objectQueue.get(type).length)
+                this._objectQueue.get(type).shift();
         }
 
         /**
          * 清除缓存
          */
-        public static clearCache() {
-            this._objectQueue.length = 0;
+        public static clearCache<T>(type: new (...args) => T) {
+            this.checkCreate(type);
+            this._objectQueue.get(type).length = 0;
         }
 
         /**
          * 如果可以的话，从堆栈中弹出一个项
          */
-        public static obtain<T>(): T[] {
-            if (this._objectQueue.length > 0)
-                return this._objectQueue.shift();
+        public static obtain<T>(type: new (...args) => T): T[] {
+            this.checkCreate(type);
+            if (this._objectQueue.get(type).length > 0)
+                return this._objectQueue.get(type).shift();
 
             return [];
         }
@@ -48,9 +52,15 @@ module es {
          * 将项推回堆栈
          * @param obj
          */
-        public static free<T>(obj: Array<T>) {
-            this._objectQueue.unshift(obj);
+        public static free<T>(type: new (...args) => T, obj: Array<T>) {
+            this.checkCreate(type);
+            this._objectQueue.get(type).unshift(obj);
             obj.length = 0;
         }
+
+        private static checkCreate<T>(type: new (...args) => T) {
+            if (!this._objectQueue.get(type))
+                this._objectQueue.set(type, []);
+        }
     }
 }

source/src/Utils/Extensions/ArrayUtils.ts

@@ -283,7 +283,7 @@ module es {
          * @param list 
          * @param itemCount 从列表中返回的随机项目的数量
          */
-        public static randomItems<T>(list: T[], itemCount: number){
+        public static randomItems<T>(type: any, list: T[], itemCount: number){
             let set = new Set<T>();
             while (set.size != itemCount) {
                 let item = this.randomItem(list);
@@ -291,7 +291,7 @@ module es {
                     set.add(item);
             }
     
-            let items = es.ListPool.obtain<T>();
+            let items = es.ListPool.obtain<T>(type);
             set.forEach(value => items.push(value));
             return items;
         }

source/src/Utils/PolygonLight/VisibilityComputer.ts

@@ -148,7 +148,7 @@ module es {
          * 计算可见性多边形，并返回三角形扇形的顶点（减去中心顶点）。返回的数组来自ListPool
          */
         public end(): Vector2[] {
-            let output = ListPool.obtain<Vector2>();
+            let output = ListPool.obtain<Vector2>(Vector2);
             this.updateSegments();
             this._endPoints.sort(this._radialComparer.compare);