Thanks. I do wonder though, why are they called Capabilities? What does that mean in this context? I would imagine it's the ability for an object to do something, which then I'm not sure how that translates to checking if it is doing it, but then there are types and also "facing" which I don't think is like in world directions. 

https://github.com/AyliasTheCoder/The-Secrets-Of-BlocksDrawing

Capabilities

Wat... No. I need an URL I can clone.

I want to have a field or some attribute to PlayerEntity that indicates whether the player is pressing a key. I've tried DataManagers but the id value overlap makes me think that is the wrong way to do it on top of causing exceptions. I've also tried Lists and such to store players that did but sidedness and thread safety make me think thats also the wrong way. My question is how do I add this boolean attribute in such a way that avoids sidedness and is the proper way?   Thanks.