AS3 .hitTestObject() not working with Tween function

Question

(This was originally in an other senction but many told me to ask here, hopefully someone can answer this) I am having a major problem in my new browser app.

Okay so I made game where different cubes (squares) spawn at the top of the screen and I use the Tween class to make them go down the screen and then disappear.

However I want to detect a collision when a cube hits the player (that is also a flying cube).

I tried everything, truly everything but it does not seem to work. The problematic thing is that when I remove the "Tween" function it does detect collision with the hitTestObject method but when I add the "Tween" line collision won't be detected anymore.

The code looks like this:

    function enemiesTimer (e:TimerEvent):void {


newEnemy = new Enemy1();
  layer2.addChild(newEnemy);
  newEnemy.x = Math.random() * 700;
  newEnemy.y = 10;
  if (enemiesThere == 0)
  {
      enemiesThere = true;
      player.addEventListener(Event.ENTER_FRAME, collisionDetection)
  }



  var Tween1:Tween = new Tween(newEnemy, "y", null, newEnemy.y, newEnemy.y+distance, movingTime, true); }

The collision detection part:

private function collisionDetection (e:Event):void
  {


      if (player.hitTestObject(newEnemy))
      {
          trace("aaa");
      }


  }

*Another weird thing is that the collision detection works only in the starting point, where the squares spawn but they aren't really there anymore so I don't quite get it.

I hope someone can answer this and maybe tell me how I can code this. Thanks in advance :)

*I've tried out Tweener & TweenMax as well, the problem is always the same

Answer 1

I'm sure this has nothing to do with the Tweening library you're using (as indicated in the comments) but rather with how you reference your enemy in the collisionDetection. Depending on how your code is structured, newEnemy might not be set in that scope or be set to something you're not expecting.

I suggest you try this:

var newEnemy:MovieClip = new Enemy1();
layer2.addChild(newEnemy);
newEnemy.x = Math.random() * 700;
newEnemy.y = 10;
newEnemy.addEventListener(Event.ENTER_FRAME, collisionDetection);
var Tween1:Tween = new Tween(newEnemy, "y", 
    null, newEnemy.y, newEnemy.y+distance, movingTime, true);

And in your collisionDetection method:

private function collisionDetection (e:Event):void
{
    // e.currentTarget is the enemey that emits the event
    if (e.currentTarget.hitTestObject(player)){
        trace("aaa");
    }
}