Hi,
I think registerClass is an oldskool AS1 workaround before you could
extend classes in AS2...
Object.registerClass("myLinkageName", MyClassName);
Applying classes at runtime in AS2..
you may also need to use the apply, etc to cast a MovieClip to an
instance of your class, here is one I made earlier to cast a loaded SWF
to an instance of Animation class.
myClip.__proto__ = Animation.prototype; //myClip is a MovieClip
myClip.__constructor__ = Animation;
myClip.__constructor__.apply(mHolder);
myClip._lockroot = true;
//You also have to have a "dummy" instance of your class to assign
your newly "casted" instance to.
var dummy:Animation = Animation(myClip);
//Then you can call methods of the Animation class on that clip...
dummy.play();
dummy.specialNonMovieClipFunction();
It's a tricky one to get the hang of, but this has proved rock-solid
since I learnt it and has been a godsend for loading in huge timeline
animations created by designers / animators when I was just sent a load
of assets to "deal with"...
Glen
Mendelsohn, Michael wrote:
Hi list...
I have a class (pixViewer extends MovieClip) and an empty MovieClip
(linkage:emptyMC, not registered to any class in the linkage dialog). I
want attached this emptyMC to the stage and I want it to be an instance
of pixViewer.
__proto__ works, but why won't prototype or registerClass?
//works:
var pv:MovieClip = _root.createEmptyMovieClip("pixViewer", 180);
pv.__proto__ = new pixViewer();
pv.onLoad();
/*
Why doesn't this work:
pv.prototype = new pixViewer();
pv.registerClass(pixViewer);
*/
Thanks,
- MM
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Glen Pike
01326 218440
www.glenpike.co.uk <http://www.glenpike.co.uk>
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