0613授業：if文 復習用素材02

/**
 * Copyright hazel_eyes ( http://wonderfl.net/user/hazel_eyes )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/T3x0
 */

package {
	import flash.display.Sprite;
	import flash.events.Event;

	public class test extends Sprite {
			public var sp:Sprite;
			public var xSpeed:int = 10;
		public function test() {
			sp = new Sprite();
			sp.graphics.beginFill(0xff0000);
			sp.graphics.drawCircle(0, 0, 30);
			sp.graphics.endFill();
			sp.x = 100;
			sp.y = 100;
			sp.alpha = 0.7;			

			addChild(sp);
			this.addEventListener(Event.ENTER_FRAME, doEnter);
		}
		public function doEnter(e:Event):void{
			sp.x += xSpeed;
			if(sp.x > stage.stageWidth - sp.width/2 || sp.x < sp.width/2){
					xSpeed *= -1;
			}
		}		
	}
}