flashべんきょーかい。例題１

/**
 * Copyright applicott ( http://wonderfl.net/user/applicott )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/88WF
 */

package
{
	import flash.display.Sprite;
	import flash.display.StageAlign;
	import flash.display.StageScaleMode;
	import flash.events.Event;
	
	[SWF(backgroundColor=0x000000,width="300",height="300", frameRate = "30")]
	public class Main extends Sprite{
		private var i:Number =0;
		private var red:Sprite;
		public function Main(){
			stage.scaleMode = StageScaleMode.NO_SCALE;
			stage.align = StageAlign.TOP_LEFT;
			red = new Sprite();
			red.graphics.beginFill(0xff0000);
			red.graphics.drawCircle(0,0,20);
			red.x=20;
			red.y=20;
			red.graphics.endFill();
			
			addEventListener(Event.ENTER_FRAME,onEnterFrame);
			addChild(red);
		}
		
		private function onEnterFrame(e:Event):void{
			if(red.x>=260) i=0;
			else i+=0.4;
			red.x+=i;
		}
	}
}