roundCircle

/**
 * Copyright darman ( http://wonderfl.net/user/darman )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/va7F
 */

/*
	sin cos　使わずに円運動
*/
package {
	import flash.events.Event;
    import flash.display.Sprite;
    
    public class FlashTest extends Sprite {
    	
    		private var mc:Sprite;
    		private var K:Number = 0.02;
    		private var cx:Number = 100;
    		private var cy:Number = 100;
    		
        public function FlashTest() {
            // write as3 code here..
            mc = new Sprite();
            mc.graphics.beginFill(0);
            mc.graphics.drawCircle(0,0,20);
            mc.graphics.endFill();
            addChild(mc);
            mc.x = 150;
            mc.y = 150;
            addEventListener(Event.ENTER_FRAME, _loop );
        }
        private function _loop(e:Event):void{
        		mc.x -= ( mc.y - cy ) * K;
        		mc.y += ( mc.x - cx ) * K;
        }
    }
}