 		/** @private */ private var _mask:Mask;
 		/** @private */ private var _x:Number;
 		/** @private */ private var _y:Number;
+		/** @private */ private var _moveX:Number = 0;
+		/** @private */ private var _moveY:Number = 0;
 		
 		// Rendering information.
 		/** @private */ internal var _graphic:Graphic;

			this.height = height;
			this.originX = originX;
			this.originY = originY;
		}
		
		/**

		public var originY:int;
		
		/**
		 * Optional callback for horizontal collision using moveTo() or moveBy().
		 */
		public var callbackX:Function;
		
		/**
		 * Optional callback for vertical collision using moveTo() or moveBy().
		 */
		public var callbackY:Function;
		
		/**
		 * The BitmapData target to draw the Entity to. Leave as null to render to the current screen buffer (default).
		 */
		public var renderTarget:BitmapData;
		
		/**
		 * Constructor. Can be usd to place the Entity and assign a graphic and mask.
		 * @param	x			X position to place the Entity.
		 * @param	y			Y position to place the Entity.
