DB> it changes the class prototype but errors when i try to initialize the
DB> constructor using the call method.
That's because in this case classes.testClass interpreted by the
compiler in the context of AS2 syntax and not as a simple Function
object. So you have to cast it to type Function directly or through a
variable:
Function(classes.testClass).call(_root.testMC);
or
var cl: Function = classes.testClass;
cl.call(_root.testMC);
Even better to create some static methods for dealing with reclassing
of MovieClips. Here are ones what I'm using in my Application class:
static private var objectID: Number = 1;
static public function createObject(aClass: Function, aParent: MovieClip,
aDepth: Number, aConstructorParams: Array) {
var result: MovieClip = aParent.createEmptyMovieClip("object" + objectID++,
aDepth);
result.__proto__ = aClass.prototype;
aClass.call(result, aConstructorParams);
return result;
}
static public function attachObject(aClass: Function, aLinkageID: String,
aParent: MovieClip, aDepth: Number, aConstructorParams: Array) {
var result: MovieClip = aParent.attachMovie(aLinkageID, "object" +
objectID++, aDepth);
result.__proto__ = aClass.prototype;
aClass.call(result, aConstructorParams);
return result;
}
static public function castObject(aTarget: MovieClip, aClass: Function,
aConstructorParams: Array) {
aTarget.__proto__ = aClass.prototype;
aClass.call(aTarget, aConstructorParams);
return result;
}
Attila
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