getextra

int32 Mob::GetExtraSpellAmt(uint16 spell_id, int32 extra_spell_amt, int32 base_spell_dmg)
{
    int total_cast_time = 0;

    if (spells[spell_id].recast_time >= spells[spell_id].recovery_time)
            total_cast_time = spells[spell_id].recast_time + spells[spell_id].cast_time;
    else
        total_cast_time = spells[spell_id].recovery_time + spells[spell_id].cast_time;

    if (total_cast_time > 0 && total_cast_time <= 2500)
        extra_spell_amt = extra_spell_amt*(25/100.0f);
     else if (total_cast_time > 2500 && total_cast_time < 7000)
         extra_spell_amt = extra_spell_amt*(0.167*((total_cast_time - 1000)/1000.0f));
     else
         extra_spell_amt = extra_spell_amt * (total_cast_time / 7000.0f);

        if(extra_spell_amt*2 < base_spell_dmg)
            return 0;

        return extra_spell_amt;
}