function randomchance(a: strings) :: integer:
    loop 2 times:
        chance of 10+{_a}%:
            set {_return} to 10
            exit loop
        chance of 30+{_a}%:
            set {_return} to 9
            exit loop
        chance of 50+{_a}%:
            set {_return} to 8
            exit loop
        chance of 70+{_a}%:
            set {_return} to 7
            exit loop
        chance of 80+{_a}%:
            set {_return} to 6
            exit loop
        chance of 100%:
            set {_return} to 5
    return {_return}
on inventory click:
    if lore of clicked item contains "[Thành Phẩm]":
        set {_return} to randomchance({_a})
        loop all items in player's inventory:
            if loop-item's lore contains "[Thành Phẩm]":
                enchant loop-item with Protection {_return}