移除Bitset更改为Bits

source/src/ECS/Utils/Bits.ts

@@ -0,0 +1,14 @@
+module es {
+    export class Bits {
+        private _bit: {[index: number]: number} = {};
+
+        public set(index: number, value: number) {
+            this._bit[index] = value;
+        }
+
+        public get(index: number): number {
+            let v = this._bit[index];
+            return v == null ? 0 : v;
+        }
+    }
+}