Trying to see if I can add a turn based movement system.
The only way I can think of is by setting a worldborder centered on a player for their turn.
But theres a few problems: No vertical limiting, other players could use it if they are close enough, it looks kind of ugly and the border is square (yes I know minecraft is square)
:-)
Could maybe use command blocks and the invisible barrier blocks together somehow. Like moving a box of barriers around the player on a timed delay or after an input. Ive never used command blocks but some of the videos ive watched of games made with them seem like it could work.