Box2D Forums

b2BodyDef bodyDef;
      bodyDef.type = b2_dynamicBody;
      bodyDef.position.Set(pi->startPos[i].x, pi->startPos[i].y);
      b2Body* body = bw->CreateBody(&bodyDef);

      // Define another box shape for our dynamic body.

      b2CircleShape circle;
      circle.m_p.Set(pi->startPos[i].x, pi->startPos[i].y);
      circle.m_radius = 7.0f;

      //b2PolygonShape dynamicBox;
      //dynamicBox.SetAsBox(7.0f, 7.0f);

      // Define the dynamic body fixture.
      b2FixtureDef fixtureDef;
      fixtureDef.shape = &circle;

      // Set the box density to be non-zero, so it will be dynamic.
      fixtureDef.density = gPuckDensity;

      // Override the default friction.
      fixtureDef.friction = gPuckFriction;

      fixtureDef.restitution = 0.8;

circle.m_p.Set(pi->startPos[i].x, pi->startPos[i].y);