package {
     
    import flash.display.Sprite;
     
    public class Box extends Sprite {
         
        private var w:Number;
        private var h:Number;
        private var color:uint;
        public var vx:Number=0;
        public var vy:Number=0;
         
        public function Box(width:Number=50, height:Number=50, color:uint=0xff0000) {
            w=width;
            h=height;
            this.color=color;
            init();
        }
         
        public function init():void {
            graphics.beginFill(color);
            graphics.drawRect(-w / 2, -h / 2, w, h);
            graphics.endFill();
        }
    }
}