// XXX: This is a hack!
                // (Necessary because attributes are unsigned chars.)

                // Use weapon slot + 1, so weapon slot 'a' (== 0) doesn't
                // return false when checking if
                // you.attribute[ATTR_WEAPON_SWAP_INTERRUPTED].

    if (Options.swap_when_safe && !you.turn_is_over && player_feels_safe

    if (!you.turn_is_over && player_feels_safe

        // Decrease value by 1. (0 means attribute is false, 1 = a, 2 = b, ...)