title: AS3 RemoveChild. Bullet and Enemy?
body: <p>I having some problem with bullet and enemy. I don't think i need to explain so much, just take a look at the code. Im not very good at AS3, im new and learning so I need help :P </p>
  
  <p>Ok, this is on the flash/stage timeline. Here I say if I press mouse a bullet should be created.</p>
  
  <pre><code>stage.addEventListener(MouseEvent.MOUSE_DOWN, mouseDown);
  
  function mouseDown(pEvent)
  {
      // Create a new bullet
      var b = new Bullet();
      // Set his position to the tank position
      b.x = Player.x;
      b.y = Player.y;
      // Save the randian angle between the mouse and the tank
      // This angle will set the direction of the bullet
      b.angleRadian = Math.atan2(AIM.y - Player.y,AIM.x - Player.x);
      // Add an enter frame event on each bullet
      b.addEventListener(Event.ENTER_FRAME, bulletEnterFrame);
      // Add this display object on the display list
      addChild(b);
  }
  
  // Velocity of each bullet
  var speed = 8;
  
  function bulletEnterFrame(pEvent)
  {
      // Get the current object (Bullet)
      var b = pEvent.currentTarget;
      // Move this bullet on each frames
      // On X axis use the cosinus angle
      b.x +=  Math.cos(b.angleRadian) * speed;
      // On Y axis use the sinus angle
      b.y +=  Math.sin(b.angleRadian) * speed;
      // Orient the bullet to the direction
      b.rotation = b.angleRadian * 180 / Math.PI;
      // You have to remove each created bullet 
      // So after every moves you must check bullet position
      // If the bullet is out of the screen
      if (b.x &lt; 0 || b.x &gt; 1024 || b.y &lt; 0 || b.y &gt; 768)
      {
          // Remove it from the display list
          removeChild(b);
          // /!\ AND REOMOVE HIS EVENT LISTER
          b.removeEventListener(Event.ENTER_FRAME, bulletEnterFrame);
      }
  
      if (b.hitTestObject(Enemy))
      {
          **I WANT TO REMOVE ENEMY!!!!**
      }
  }
  </code></pre>
  
  <p>OK. And on timeline i also create enemys. Like this:</p>
  
  <pre><code>var Enemy:MovieClip = new AI(stage);
  addChild(Enemy);
  </code></pre>
  
  <p>And the enemyclass looks like this:</p>
  
  <pre><code>package 
  {
  
  import flash.display.MovieClip;
  import flash.events.*;
  import flash.display.Stage;
  
  public class AI extends MovieClip
  {
  
      var speed:Number = 1;
      var distance:Number;
  
      public function AI(stage):void
      {
  
  
          addEventListener(Event.ENTER_FRAME, onadd);
  
      }
  
      public function onadd(e:Event):void
      {
          addEventListener(Event.ENTER_FRAME, loop);
      }
  
      private function loop(e:Event):void
      {
  
          var Player = MovieClip(root).Player;
  
          var yDistance:Number = Player.y - y;
          var xDistance:Number = Player.x - x;
  
          if (Math.sqrt(yDistance*yDistance +  xDistance*xDistance) &lt; speed)
          {
              x = Player.x;
              y = Player.y;
          }
          else
          {
              var radian:Number = Math.atan2(yDistance,xDistance);
              x +=  Math.cos(radian) * speed;
              y +=  Math.sin(radian) * speed;
              rotation = radian * 180 / Math.PI;
          }
  
          if (this.hitTestObject(Player))
          {
              trace("DEAD");
          }
  
          //distance = Math.sqrt( ( MovieClip(root).Player.x - this.x ) * ( MovieClip(root).Player.x - this.x ) + ( MovieClip(root).Player.y - this.y ) * ( MovieClip(root).Player.y - this.y ) );
  
      }
  
  }
  
  }
  </code></pre>
  
  <p>The think is that I can't figure out how I should remove enemy when bullet hits hit.
  Please help!</p>