package{ import flash.display.Sprite; import flash.events.MouseEvent; import org.libspark.betweenas3.BetweenAS3; [SWF(backgroundColor=0xffffff, frameRate=60)] public class a extends Sprite{ public function a():void{ stage.addEventListener(MouseEvent.MOUSE_UP, mouseUpHandler); } private function mouseUpHandler(e:MouseEvent):void{ var s:Stone = new Stone(); s.x = mouseX; s.y = mouseY; // .tween(Target, ToValues, FromValues, Time, Easing, Delay) BetweenAS3.tween(s, {y: 320}, null, 2).play(); addChild(s); } } } import flash.display.Sprite; class Stone extends Sprite{ public function Stone():void{ this.graphics.beginFill(0x0000); this.graphics.drawCircle(0, 0, 10); this.graphics.endFill(); } }