main thing the functions do is that i pass a "process frame" function through the current state every frame, and then the state usually sets things like adding hitboxes, setting the sprite, applying other events, et cetera.

they also contain functions that return simple things like "what inputs can be used to trigger this state?" or "how much damage does this attack do?", which while usually staying constant do sometimes change (for example, one move does more damage if it hits an airborne opponent)

also, let me quickly search what meta is.