on join:
clear player's inventory
set slot 4 of player to compass
on right click:
if player's tool is compass:
open chest with 1 rows named "&7Serwer" to player
set player's current inventory's slot 0 to glass
on inventory click:
if inventory name of current inventory of player is "&7Serwer":
if clicked slot is 0:
#łączenie z serwerem