新增场景策略适配

source/src/Utils/Emitter.ts

@@ -59,7 +59,7 @@ module es {
          * @param eventType 事件类型
          * @param data 事件数据
          */
-        public emit(eventType: T, data?: any) {
+        public emit(eventType: T, ...data: any[]) {
             let list: FuncPack[] = this._messageTable.get(eventType);
             if (list) {
                 for (let i = list.length - 1; i >= 0; i--)

source/src/Utils/Ref.ts

@@ -1,11 +1,8 @@
 module es {
-    /**
-     * 使得number/string/boolean类型作为对象引用来进行传递
-     */
-    export class Ref<T extends number | string | boolean> {
+    export class Ref<T> {
         public value: T;
 
-        constructor(value: T){
+        constructor(value: T) {
             this.value = value;
         }
     }

source/src/Utils/Screen.ts

@@ -0,0 +1,14 @@
+module es {
+    export class Screen {
+        public static width: number;
+        public static height: number;
+
+        public static get size(): Vector2 {
+            return new Vector2(this.width, this.height);
+        }
+
+        public static get center(): Vector2 {
+            return new Vector2(this.width / 2, this.height / 2);
+        }
+    }
+}