on load:
  set {server::playerslots} to 250

command /playerslot <number>:
  permission: op
  aliases: slot, ps
  trigger:
    set {server::playerslots} to arg-1
    play sound "entity.player.levelup" to player
    message "&f "
    message "&3Set the current player slots to &b%{server::playerslots}%&3!"
    message "&f "

on join:
  if number of online players is more than {server::playerslots}:
    console command "/kick %player% This server is full!"