Actionscript 3 compare two MovieClips - actionscript-3

Question

I dynamically add MovieClips to an DisplayObjectContainer. Some of these MovieClips loop through all children of DisplayObjectContainer to check gravitation and collision. Though, when I check if the current child is not equal to the caller MovieClip it seems to check the type only.
So basically, when I check MovieClip equality it seems to check the type only.
Main.as:
var planet:Planet = new Planet(holder);
planet.x = 0;
planet.y = 0;
planet.spawn();
var planet2:Planet = new Planet(holder);
planet2.x = 50;
planet2.y = 50;
planet2.spawn();
Planet.as:
public class Planet {
public var x:Number = 0;
public var y:Number = 0;
private var _holder:DisplayObjectContainer;
private var _mc:MovieClip;
public function Planet(holder:DisplayObjectContainer) {
_holder = holder;
_mc = new PlanetMovieClip();
_mc.addEventListener(Event.ENTER_FRAME, enterFrameHandler);
}
public function spawn():void {
_holder.addChild(_mc);
}
private function enterFrameHandler(evt:Event):void {
for(var i:int = 0; i < _holder.numChildren; i++) {
var child:MovieClip = _holder.getChildAt(i) as MovieClip;
// the other planet never passes this check
if(child !== _mc) {
trace('child is not the same');
}
}
}
}
So am I doing something wrong, should I approach an other method or should I just add an property that generates a random token used for identification?

Answer 1

you should remove as MovieClip; in _holder.getChildAt(i);

Answer 2

I would change !== with !=
The rest of your code seems ok.

Answer 3

First of all you have error in the code you have given to create Planet movieclip.
It should be
var planet:Planet = new Planet(holder);
planet.x = 0;
planet.y = 0;
planet.spawn();
var planet2:Planet = new Planet(holder)
planet2.x = 50;
planet2.y = 50;
planet2.spawn();
Did you check for null in Planet.as ?
if(child!=null) {
if(child !== _mc)
trace('child is not the same');
else
trace("child same");
}
And ofcourse you can always assign some unique name to the movieclips, and use it for comparing.