All factory methods must return RefCountPtr objects instead of raw pointers.

“Factory methods” means methods that return new objects or copies of other objects.
As an example:

• All the static methods that start with create

  • All the clone methods

  // Classes should look similar to this one:
  class Sprite : public Node
  {
  public:
  typedef RefCountPtr Ptr;

  ...

  static Ptr createXXX() 
  

  {
  auto instance = new Sprite;
  instance->initXXX();
  return Ptr( instance );
  }
  }