# Question about box2d

**URL:** <https://forum.kirupa.com/t/question-about-box2d/315055>\
**Category:** flash\
**Created:** [October 16, 2010, 4:12am UTC](https://forum.kirupa.com/t/question-about-box2d/315055 "2010-10-16T04:12:25Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![zombiekiller222](https://avatars.discourse-cdn.com/v4/letter/z/cdc98d/32.png) [@zombiekiller222](https://forum.kirupa.com/u/zombiekiller222)\
**Post date:** [October 16, 2010, 4:12am UTC](https://forum.kirupa.com/t/question-about-box2d/315055/1 "2010-10-16T04:12:25Z")

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Hey, I’m making my ‘first game’ currently.  
This is what I’ve got so far (I’ve spent minimal time on it so far – not very full of features): [http://megaswf.com/serve/59297/](http://megaswf.com/serve/59297/)

Now, I know the walls are buggy, but that’s the reason Im asking my question. See – the ‘objects’ in my game are going to be of various shapes and sizes – very hard to program a way to make it all not buggy. I was about to sink into the void and make it so that the walls and objects are all square, but then I remembered a little physics engine…

Box2d. Now I can guess what you are thinking?: what would a physics engine do to help you. But, I if I remember correctly, it can handle various collisions on different shapes. So I ask, do you think it would work? Would it make the game buggy? A lot less dynamic? Can I still do things like animations? Can I still have objects that dont care if they are going through an object?

THANKS, ZOMBIEKILLER222 :thumb2:

EDIT: how to access stage.stageWidth inside a class? I cant seem to do it 😕 It throws an error.