title: Box2D collision manifold?
body: <p>I have seen around that there is a b2Manifold. What I want to accomplish is to detect whether or not a collision was on the top part or not of one of the objects that were colliding.</p>
  
  <p>I have already set up a b2ContactListener and it works fine. I would just like to provide more accurate collisions by setting up the manifold to detect if one b2Body is on top of the other b2Body that it collided with.</p>
  
  <p>How would I do this?</p>
  
  <p>Thanks!</p>
  
  <p><a href="http://postimage.org/image/kbfr7c5db/" rel="nofollow">http://postimage.org/image/kbfr7c5db/</a> </p>