Flash / Flex / ActionScript/Development/MovieClip

Add frame event listener to MovieClip

 
package {
     
     import flash.display.MovieClip;
     import flash.events.Event;
     
     public class Motion extends MovieClip {
          
          public function Motion() {
               trace("Motion class instantiated");
               addEventListener(Event.ENTER_FRAME, update);
          }
          private function updatePosition():void {
               this.x++;
               this.y++;
          }
          private function update(evtObj:Event):void {
               this.updatePosition();
          }
          
     }
}

Change MovieClip position

 
package {
     
     import flash.display.MovieClip;
     import flash.events.Event;
     
     public class Motion extends MovieClip {
          
          public function Motion() {
          }
          public function init(xVal:Number,yVal:Number):void {
               this.x = xVal;
               this.y = yVal;
               addEventListener(Event.ENTER_FRAME, update);
          }
          private function updatePosition():void {
               this.x++;
               this.y++;
          }
          private function update(evtObj:Event):void {
               this.updatePosition();
          }
          
     }
}

extends MovieClip

 
package {
  import flash.display.MovieClip;
  import flash.events.Event;
  public class Motion extends MovieClip {
    
     public function Motion() {
       this.addEventListener(Event.ENTER_FRAME, update);
    }
     
    private function updatePosition():void {
      this. x++;
      this. y++;
    }
    
     private function update(evtObj:Event):void {
      this.updatePosition();
    }
     
  }
}

Variable and Function Definitions in Frame Scripts

 
package {
  import flash.display.MovieClip;
  import flash.utils.Timer;
  import flash.events.TimerEvent;
  public class Main extends MovieClip {
    private var timer:Timer;
    public function Main() {
      timer = new Timer(100, 0);
      timer.addEventListener(TimerEvent.TIMER, timerListener);
      timer.start(  );
    }
    private function timerListener (e:TimerEvent):void {
      randomFade(  );
    }
    private function randomFade (  ):void {
      alpha = Math.random(  );
    }
    public function dispose (  ):void {
      timer.stop(  );
    }
  }
}

Working with the MovieClip: Using stop() and gotoAndPlay()

 
package {
    import flash.display.*;
    import flash.net.URLRequest;
    import flash.events.Event;
    
    public class Movies extends Sprite
    {
        public function Movies()
        {
            var loader:Loader = new Loader();
            loader.load(new URLRequest("movie.swf"));
            loader.contentLoaderInfo.addEventListener(Event.ruPLETE, makeMovie);
    
        }
        private function makeMovie(event:Event):void
        {
            var mc:MovieClip = (event.target.content as MovieClip);
            mc.gotoAndPlay("intro");
            mc.addEventListener(Event.ENTER_FRAME, stopMovie);
        }
        private function stopMovie(event:Event):void
        {
            try
            {
                if (MovieClip(event.target).currentFrame == 30)
                    MovieClip(event.target).stop();
            } catch(err:Error) {
                trace("oops...");
            }
        }
    }
}