title: box2d destroy and recreate shape
body: <p>I'm having major issues trying to resize/scale/reshape a b2body's fixture... I've read so many tutorials and since I'm a n3wb at box2d most of it doesn't make sense.</p>
  
  <p>What I'm trying to do exactly is make the collision box of a b2body scale to a CCSprite in cocos2d as the sprite moves dynamically through the application.</p>
  
  <p>Any reference code would be greatly appreciated, I know you have to destroy and recreate the fixture but I have no idea how to do it correctly! I've been at this for hours now with no success. Thanks!</p>