package 

{



        import flash.display.*;

        import flash.events.*;

        public class MouseToy extends MovieClip

        {

                private var circles:Array;

                public function MouseToy()

                {

                        // init

                        circles = [];

                        for (var i:int = 0; i<30; i++)

                        {

                                var c:Sprite = makeCircle();

                                c.x = stage.stageWidth / 2;

                                c.y = stage.stageHeight / 2;

                                c.scaleX = 1 + i / 2;

                                c.scaleY = 0.5 + i / 4;

                                addChild(c);

                                circles.push(c);

                        }

                        addEventListener(Event.ENTER_FRAME, onLoop);



                }

                // private methods

                private function onLoop(evt:Event):void

                {

                        circles[0].y += (mouseY - circles[0].y) / 4;

                        for (var i:int = 1; i<circles.length; i++)

                        {

                                var pre:Sprite = circles[i - 1];

                                circles[i].y += (pre.y - circles[i].y) / 4;

                        }

                }

                private function makeCircle():Sprite

                {

                        var s:Sprite = new Sprite();

                        with (s.graphics)

                        {

                                lineStyle(0,0x000000);

                                drawCircle(0,0,10);

                        }

                        return s;

                }

        }

}