package {
	import flash.display.*;
	import flash.events.*;
	
	public class CircleRun extends Sprite {
		private var speed:Number = 0;
		private var radius:Number = 100;
		private var sptCir:Sprite;
		public function CircleRun(){
			init();
		}
		private function init():void {
			sptCir = new Sprite();
			addChild(sptCir);
			sptCir.x = stage.stageWidth / 2;
			sptCir.y = stage.stageHeight / 2;
			sptCir.graphics.lineStyle(1, 0)
			sptCir.graphics.moveTo(radius*Math.cos(speed),radius*Math.sin(speed))
			sptCir.addEventListener(Event.ENTER_FRAME, onEnterFrame);
			
			
		}
		private function onEnterFrame(e:Event):void {
			speed += 0.01;
			sptCir.graphics.lineTo(radius*Math.cos(speed),radius*Math.sin(speed))
		}
	}
}