TFS 1.X+ TFS 1.3 default Combat::getCombatDamage

[Itutorial]

So im trying to change the way damage is calculated with weapons, spells, ect.

I need help with what mina,maxa,minb,maxb mean.

void Combat::setPlayerCombatValues(formulaType_t formulaType, double mina, double minb, double maxa, double maxb)
{
    this->formulaType = formulaType;
    this->mina = mina;
    this->minb = minb;
    this->maxa = maxa;
    this->maxb = maxb;
}

This is the code I have modified. There seems to be a problem with the switch statement when I try to compile.

CombatDamage Combat::getCombatDamage(Creature* creature, Creature* target) const
{
    CombatDamage damage;
    damage.origin = params.origin;
    damage.primary.type = params.combatType;
    int32_t min, max;
   
    if (creature && creature->getCombatValues(min, max)) {
        damage.primary.value = normal_random(min, max);
        return damage;
    }

    const Player* player = creature->getPlayer();

    if (player) {
        switch (formulaType) {
        case COMBAT_FORMULA_LEVELMAGIC:
            int32_t levelFormula = player->getLevel() + player->getMagicLevel();
            damage.primary.value = normal_random(
                static_cast<int32_t>(levelFormula + mina),
                static_cast<int32_t>(levelFormula + maxa)
            );
            break;

        case COMBAT_FORMULA_SKILL:
            Item* tool = player->getWeapon();
            const Weapon* weapon = g_weapons->getWeapon(tool);
            if (weapon) {
                damage.primary.value = normal_random(
                    static_cast<int32_t>((weapon->getWeaponDamage(player, target, tool, true) + player->getSkillLevel(player->getWeaponSkill(player->getWeapon()))) + mina),
                    static_cast<int32_t>((weapon->getWeaponDamage(player, target, tool, true) + player->getSkillLevel(player->getWeaponSkill(player->getWeapon()))) + maxa)
                );

                damage.secondary.type = weapon->getElementType();
                damage.secondary.value = weapon->getElementDamage(player, target, tool);
            }
            else {
                damage.primary.value = normal_random(
                    static_cast<int32_t>(mina),
                    static_cast<int32_t>(maxa)
                );
            }
            break;

        default:
            damage.primary.value = normal_random(
                static_cast<int32_t>(mina),
                static_cast<int32_t>(maxa)
            );
            break;

        }
    }

    return damage;
}

Thank for any help guys.