gistfile1.js

function resolveCollisions() {  

     var collision = world.m_contactList;

     if (!collision) return;

     var obj1 = collision.GetShape1();
     var obj2 = collision.GetShape2();

     if ( (obj1.m_body.m_shapeList.renderType == "player" && obj2.m_body.m_shapeList.renderType == "exit") ||
          (obj2.m_body.m_shapeList.renderType == "player" && obj1.m_body.m_shapeList.renderType == "exit")) {
        winGame();
     }

}