Declaring static generic variables in a generic class

Question

I\'ve read that you cannot declare static variables/methods inside a generic class and I really have no idea how to solve my problem or work around it so I ask for your guidance

Answer 1

A set of static fields is not a very good way to achieve this. I don't quite understand your requirements but it seems like a better way would be to change the signature of the constructor for this class to pass in the global index object.

That is, instead of this:

protected Nexus() { this.Add( (T)this ); }

... you could do this instead:

protected Nexus(GameStateIndex index) { index.Add(this); }

This properly separates the responsibilities of tracking the game state and keeping track of the index of all game states. (See the "Single responsibility principle".) It also makes it explicitly clear that creation of a state object comes with a dependency on indexing that state properly.