on rightclick on entity:
    if display name of event-entity is "&dピッケル強化":
        if player's held item is wood pickaxe:
            if {point::%player%} >= {next%player%}:
                add 1 to {upgrade%player%}
                remove {next%player%} from {point::%player%}
                remove wooden pickaxe from player
                set {next%player%} to {next%player%} * 1.7
                set {next%player%} to round({next%player%})
                set {_tool%player%} to wood pickaxe
                evaluate "enchant {_tool%player%} with efficiency %{upgrade%player%} - 1%"
                give {_tool%player%} named "&2[Level%{upgrade%player%} - 1% &l&d木ピッケル]" to player
            else:
                send "&e%{next%player%}-{point::%player%}%P足りません！" to player
        else:
            send "&eピッケルを持ってください！" to player