Prosze o pomoc ze zmiennymi

variables:
    {kasa.%player%}=0

command /daj [<item>][<integer>][<player>]:
    executable by: console
    trigger:
        give arg 1 to player-arg
command /sklep:
    trigger:
        open chest with 1 rows named "sklep" to player
        wait 1 tick
        format slot 0 of player with 1 of diamond named "Surowce" to close then run [execute console command "daj 20 20 20 %player%"]
        
command /ile:
    trigger:
        send "%{kasa.%player%}%"
        
        
command /dodaj:
    trigger:
        set {kasa.%player%} to {kasa.%player%} + 2000
        
command /zero:
    trigger:
        set {kasa.%player%} to 0

jak zrobić by tutaj jeszcze na górze sprawdzało czy  gracz ma wystarczająco punktów???????