Flash / Flex / ActionScript/Animation/Direction

Moving an Object in a Specific Direction

   <source lang="java">

package {

   import flash.display.Sprite;
   import flash.events.Event;
   import flash.events.TimerEvent;
   import flash.utils.Timer;
   
   public class Main extends Sprite {
       private var _sprite:Sprite = new Sprite(  );
       private var _angle:Number = 135;
       private var _speed:Number = 4;
       private var _timer:Timer;
       
       public function Main (  ) {
           _sprite.graphics.beginFill(0x0000ff, 100);
           _sprite.graphics.drawCircle(0, 0, 5);
           _sprite.graphics.endFill(  );
           _sprite.x = 300;
           _sprite.y = 100;
           addChild(_sprite);
           _timer = new Timer(3);
           _timer.addEventListener("timer", onTimer);
           _timer.start(  );
       }
       
       public function onTimer(event:TimerEvent):void {
           var radians:Number = _angle * Math.PI / 180;
           var vx:Number = Math.cos(radians) * _speed;
           var vy:Number = Math.sin(radians) * _speed;
           _sprite.x += vx;
           _sprite.y += vy;
       }
   }    

}

       </source>