public boolean addPlayer(Game game, UUID uuid) {
   if (playerManager.getCurrentGame(uuid) != null) {
     getLogger()
         .warning(
             "Tried to add player "
                 + uuid
                 + " to game "
                 + game.getUuid()
                 + " but they were already in game "
                 + playerManager.getCurrentGame(uuid).getUuid());
     return false;
   } else {
     playerManager.setCurrentGame(uuid, game);
     return true;
   }
 }
 @Override
 public void onDisable() {
   playerManager.clear();
   worldManager.clear();
   eventManager.clear();
   gameManager.clear();
   if (hearts != null) hearts.disable();
   instance = null;
 }
 public void unregisterGame(Game game) {
   eventManager.unregisterGame(game);
   worldManager.unregisterGame(game);
   playerManager.unregisterGame(game);
   gameManager.unregisterGame(game);
 }