クリックした場所に円を描く

/**
 * Copyright UKI0809 ( http://wonderfl.net/user/UKI0809 )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/pJEa
 */

package {
    import flash.events.MouseEvent;
    import flash.display.MovieClip;
    import flash.display.Sprite;
    import flash.events.MouseEvent;
    
    public class MouseClick extends Sprite{
        public function MouseClick() {
            //ステージにクリック・イベントのハンドらを登録
            stage.addEventListener(MouseEvent.CLICK,onClick);
        }

   private function onClick(e:MouseEvent):void{
      
       var nR:int = Math.ceil(Math.random() * 20) + 10;
       var color:int = Math.floor(Math.random() * 0xffffff);
       
       var oneCircle:MovieClip
       =new DrawCircle(e.stageX,e.stageY,nR,color);
       
       
       addChild(oneCircle);
       }
       }
 }
 
 import flash.display.MovieClip;
 
 class DrawCircle extends MovieClip{
     public function DrawCircle(centerX:int,centerY:int,r:int,color:int)
     {
         graphics.lineStyle(2,color);
         
         graphics.drawCircle(centerX,centerY,r);
     }
     }