新增ninja adventure例子

source/src/Math/SubpixelVector2.ts

@@ -0,0 +1,23 @@
+module es {
+    export class SubpixelVector2 {
+        public _x: SubpixelFloat = new SubpixelFloat();
+        public _y: SubpixelFloat = new SubpixelFloat();
+
+        /**
+         * 以数量递增s/y余数，将值截断为整数，存储新的余数并将amount设置为当前值
+         * @param amount
+         */
+        public update(amount: Vector2) {
+            amount.x = this._x.update(amount.x);
+            amount.y = this._y.update(amount.y);
+        }
+
+        /**
+         * 将余数重置为0
+         */
+        public reset(){
+            this._x.reset();
+            this._y.reset();
+        }
+    }
+}