   this.$x = x;
    }
    
    public function getY():Number {
        return this.$y;
    }
    
    public function setY(y:Number):Void {
        this.$y = y;
    }
    
    public function getPosition():Point {
        return new Point(this.getX(), this.getY());
    }
    
    public function setPosition(pointObject:Point):Void {
        this.setX(pointObject.getX());
        this.setY(pointObject.getY());
    }
    
    public function getCenterPoint():Point {
        return new Point(this.getX() + this