//created by xiangming. http://www.flashxm.com
class Arrow extends MovieClip {
	private var arrow_mc:MovieClip;
	public function Arrow(target:MovieClip, x:Number, y:Number, w:Number, h:Number, color:Number, depth:Number) {
		arrow_mc = target.createEmptyMovieClip("arrow_mc" + depth, depth);
		with (arrow_mc) {
			_x = x;
			_y = y;
			beginFill(color, 100);
			moveTo(-w / 5, 0);
			lineTo(-w / 2, -h / 2);
			lineTo(w / 2, 0);
			lineTo(-w / 2, h / 2);
			endFill();
		}
	}
	public function setDirection(dir:String) {
		switch (dir) {
		case "up" :
			arrow_mc._rotation = -90;
			break;
		case "down" :
			arrow_mc._rotation = 90;
			break;
		case "left" :
			arrow_mc._rotation = 180;
			break;
		case "right" :
			arrow_mc._rotation = 0;
			break;
		}
	}
}