Minecraft: 1.21.1

Expose a method somewhere in the API to check if a player has a waystone active

Wanted to add support in for FTB Minimap to only show waystones that you "know" about. As right now, it shows all. However, I noticed there no way to see if a player has active a waystone without calling internal methods

What the current change would be
https://github.com/FTBTeam/FTB-XMod-Compat/pull/27/files