# Extend a class that is already being extended

**URL:** <https://forum.kirupa.com/t/extend-a-class-that-is-already-being-extended/292685>\
**Category:** Uncategorized\
**Created:** [July 17, 2009, 2:48pm UTC](https://forum.kirupa.com/t/extend-a-class-that-is-already-being-extended/292685 "2009-07-17T14:48:42Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Samurai](https://avatars.discourse-cdn.com/v4/letter/s/bc79bd/32.png) [@Samurai](https://forum.kirupa.com/u/Samurai)\
**Post date:** [July 17, 2009, 2:48pm UTC](https://forum.kirupa.com/t/extend-a-class-that-is-already-being-extended/292685/1 "2009-07-17T14:48:42Z")

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Ok, I have spent a little time searching and I can’t seem to find an answer to my question, maybe I’m asking the wrong question.

here’s my situation:

I have a document class called Main.as, this class has variables that instantiate a CreateShape.as class that acts as a superclass. The CreateShape.as class has a protected function that is overridden by other classes (I have a CreateCircle, CreateSquare etc). Those CreateCircle etc classes, use extends to extend the CreateShape.as class, and thus have the ability to override the main method (called newShape()).

Here’s my question:

I want to add more functionality to my CreateCircle etc classes. How do I add other classes and their methods to my existing classes that are already extending a superclass?

any help would be appreciated.