command /test:
    trigger:
        open chest with 3 rows named "&8Menu: Magiczne Kowadlo" to player
        set slot 10 of player's current inventory to gold block 

on inventory click:
    if name of player's current inventory is "&8Menu: Magiczne Kowadlo":
        cancel event
        if clicked inventory is player's inventory:
            stop
        if clicked slot is not 10:
            stop
        if player's tool is not iron sword:
            stop
        if player's tool's name contains "&4[&c+":
            if player have 8 diamond:
                add 1 to {ulepszenie::%player%}
                set {_u} to {ulepszenie::%player%}
                set {_name} to (length of player's tool's name - 11) first characters of player's tool's name
                set player's tool's name to "%{_name}% &4[&c+%{_u}%&4]"
                send "&3[&bMagiczne Kowadlo&3] &fPomyslnie ulepszyles swoj miecz na &4[&c+%{_u}%&4]&f!" to player
                remove 8 of diamond from player's inventory
            else:
                send "&3[&bMagiczne Kowadlo&3] &fNie posiadasz &a8 diamentow&f!" to player
        else:
            if player have 8 diamond:
                set {ulepszenie::%player%} to 1
                set {_u} to {ulepszenie::%player%}
                set player's tool's name to "%name of player's tool% &4[&c+%{_u}%&4]"
                send "&3[&bMagiczne Kowadlo&3] &fPomyslnie ulepszyles swoj miecz na &4[&c+%{_u}%&4]&f!" to player
                remove 8 of diamond from player's inventory
            else:
                send "&3[&bMagiczne Kowadlo&3] &fNie posiadasz &a8 diamentow&f!" to player
                
command /test2:
    trigger:
        clear {ulepszenie::*}