simple economy (/balance, /pay)

on first join:
    set {money.%uuid of player%} to 100

command /balance:
    trigger:
        send "&eYour balance: &a$%{money.%uuid of player%} ? 0%" to player

command /pay <player> <integer>:
    trigger:
        if arg-2 is less than 1:
            send "&cAmount must be positive." to player
            stop
        if {money.%uuid of player%} is less than arg-2:
            send "&cYou don't have enough money." to player
            stop
        remove arg-2 from {money.%uuid of player%}
        add arg-2 to {money.%uuid of arg-1%}
        send "&aYou paid $%arg-2% to %arg-1%." to player
        send "&aYou received $%arg-2% from %player%." to arg-1