title: How to get collision point or points with Box2d?
body: <p>I created my own contact listener, implementing usual 4 methods: BeginContact, EndContact, PreSolve, PostSolve.</p>
  
  <p><strong>Where from what parameters of these methods can i current contact points?</strong></p>
  
  <p>I tried something like this, but nothing helped</p>
  
  <pre><code>void CListener::PreSolve(b2Contact* contact, const b2Manifold* oldManifold) {
      for(int i = 0 ; i &lt; oldManifold-&gt;pointCount; ++i) {
          b2ManifoldPoint p = oldManifold-&gt;points[i];   
      }
  }
  </code></pre>