//判断鼠标当前坐标是否在当前渲染对象区域中        isMouseIn:function(){            var x = Mouse.gX() || Touch.gX(),                y = Mouse.gY() || Touch.gY();            var sc = this.owner;var gx = sc.x,                gy = sc.y;            //转换鼠标坐标到游戏窗口坐标系            var cd = xengine.fn.MathUtil.mapSToCoord(x,y,gx,gy);            var hw  = this.w*0.5,                hh = this.h*0.5;            return cd[0] >= this.x-hw && cd[0] <= this.x + hw && cd[1] >= this.y - hh && cd[1] <= this.y + hh;        }

//以屏幕上左上角为原点，x1,y1为坐标的点转向以ox,oy为原点的坐标            mapSToCoord:function(x1,y1,ox,oy){                return [x1-ox,y1-oy];            },