I seem to remember (though may be mistaken) that the delta time variable was accessed through a RenderWindow instance, yet I don't seem to see it there anymore. In the SFML 2.0 documentation, you get this from a Clock instance, but that also doesn't seem to exist in SFML.Net (since that comes from the System module, which isn't included in SFML.Net). Where would I get dt in SFML.Net 2.0?