cocos2d for iPhone

A fast, easy to use, free, and community supported 2D game engine

1. 

   wcrtr
   Member

   Hey, quick question:

   can I dynamically change the radius of a circle shape (so like, I expand my sprite and the body/shape attached will expand in the physics space as well?

   I guess it's the lack of OoP in chipmunk, but since cpCircleShape is not just an extension of cpShape, once I've created the circle and it's been casted to a cpShape, I can't access the radius parameter. Alternatively, if I just create a cpCircleShape without casting to a cpShape, I can't set the data, elasticity or other parameters.

   SIGH.

   Anyone have any ideas? I'm basically updating the scale of my Sprite in a custom sprite class (that owns it's physics body and shape), and I'd like the scale the radius of the shape at the same time.

   thanks!

   Posted 2 years ago #
2. 

   penguins
   Member

   I have no clue if this will work or if you have already figured this out, but there is:

   cpCircleShapeSetRadius(cpShape *shape, cpFloat radius)
   Sorry if it doesn't work.

   Posted 2 years ago #
3. 

   wcrtr
   Member

   ah, that should work, thanks. I'm using chipmunk < 5.0, so that's not in the deal. time to upgrade, I suppose.

   Posted 2 years ago #

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