package {
 import flash.display.Sprite;
 import flash.utils.Timer;
 import flash.events.TimerEvent;
 import flash.utils.getTimer;

 public class animation_ch19_Timer2 extends Sprite
 {
  private var timer:Timer;
  private var ball:animation_ch19_Ball;
  
  public function animation_ch19_Timer2()
  {
   init();
  }
//@ init(s)  
  private function init():void
  {
   stage.frameRate = 1;
   ball = new animation_ch19_Ball();
   ball.y = stage.stageHeight / 2;
   ball.vx = 5;
   addChild(ball);
   timer = new Timer(20);
   timer.addEventListener(TimerEvent.TIMER, onTimer);
   timer.start();
  }
//@ timer(s)  
  private function onTimer(event:TimerEvent):void
  {
   ball.x += ball.vx;
   event.updateAfterEvent();
  }
 }
}