SFML in the future.

[vechestva]

...

You do not understand me. I was referring to the cast to the parent class.
Example even have to SFML:
classes Shape, Sprite and Text are the methods of Transformable, so they inherit from him.
It follows from this that I can use methods getPosition() and I do not need to know which type is inherited particular instance Drawable.

for example:

void Object::Foo(sf::Transformable* transformable)
{
    ...
    transformable->getPosition();
    ...
}


sf::Shape* rect = new sf::RectangleShape;
...
object.Foo(dynamic_cast<sf::RectangleShape*>(rect));
 

[vechestva]

Fixed the last post

[Demone]

the static variables are not singletongs in SFML case because are not accessible from outside directly. There very few. I can remember only VideModes and of course all GLfunctions adresses.

Always avoid Singletons. That's an antipattern.

[Nexus]

Please don't resurrect threads with a discussion that ended months ago...