[sourcecode language=”java”]
package
{
import flash.display.Sprite;
import flash.events.Event;
import flash.events.MouseEvent;
public class Easing2 extends Sprite
{
private var ball:Ball;
private var easing:Number = 0.2;
private var targetX:Number = stage.stageWidth / 2;
private var targetY:Number = stage.stageHeight / 2;
public function Easing2()
{
init();
}
private function init():void
{
ball = new Ball();
addChild(ball);
ball.addEventListener(MouseEvent.MOUSE_DOWN, onMouseDown);
addEventListener(Event.ENTER_FRAME, onEnterFrame);
}
private function onMouseDown(event:MouseEvent):void
{
ball.startDrag();
removeEventListener(Event.ENTER_FRAME, onEnterFrame);
stage.addEventListener(MouseEvent.MOUSE_UP, onMouseUp);
}
private function onMouseUp(event:MouseEvent):void
{
ball.stopDrag();
addEventListener(Event.ENTER_FRAME, onEnterFrame);
stage.removeEventListener(MouseEvent.MOUSE_UP, onMouseUp);
}
private function onEnterFrame(event:Event):void
{
var vx:Number = (targetX – ball.x) * easing;
var vy:Number = (targetY – ball.y) * easing;
ball.x += vx;
ball.y += vy;
}
}
}
[/sourcecode]
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