UnitCombatBonus.cpp

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/*
* This file is part of Project SkyFire https://www.projectskyfire.org.
* See LICENSE.md file for Copyright information
*/
 
#include "Battlefield.h"
#include "BattlefieldMgr.h"
#include "Battleground.h"
#include "CellImpl.h"
#include "Common.h"
#include "ConditionMgr.h"
#include "Creature.h"
#include "CreatureAI.h"
#include "CreatureAIImpl.h"
#include "CreatureGroups.h"
#include "Formulas.h"
#include "GridNotifiersImpl.h"
#include "Group.h"
#include "InstanceSaveMgr.h"
#include "InstanceScript.h"
#include "Log.h"
#include "MapManager.h"
#include "MovementStructures.h"
#include "MoveSpline.h"
#include "ObjectAccessor.h"
#include "ObjectMgr.h"
#include "Opcodes.h"
#include "OutdoorPvP.h"
#include "PassiveAI.h"
#include "Pet.h"
#include "PetAI.h"
#include "Player.h"
#include "QuestDef.h"
#include "ReputationMgr.h"
#include "Spell.h"
#include "SpellAuraEffects.h"
#include "SpellAuras.h"
#include "SpellInfo.h"
#include "SpellMgr.h"
#include "TemporarySummon.h"
#include "Totem.h"
#include "Transport.h"
#include "Unit.h"
#include "UpdateFieldFlags.h"
#include "Util.h"
#include "Vehicle.h"
#include "World.h"
#include "WorldPacket.h"
#include "WorldSession.h"
 
#include <math.h>
 
uint32 Unit::SpellDamageBonusDone(Unit* victim, SpellInfo const* spellProto, uint32 pdamage, DamageEffectType damagetype, uint32 stack) const
{
    if (!spellProto || !victim || damagetype == DIRECT_DAMAGE)
        return pdamage;
 
    // Some spells don't benefit from done mods
    if (spellProto->AttributesEx3 & SPELL_ATTR3_NO_DONE_BONUS)
        return pdamage;
 
    // small exception for Deep Wounds, can't find any general rule
    // should ignore ALL damage mods, they already calculated in trigger spell
    if (spellProto->Id == 12721) // Deep Wounds
        return pdamage;
 
    // For totems get damage bonus from owner
    if (GetTypeId() == TypeID::TYPEID_UNIT && ToCreature()->IsTotem())
        if (Unit* owner = GetOwner())
            return owner->SpellDamageBonusDone(victim, spellProto, pdamage, damagetype);
 
    // Done total percent damage auras
    float DoneTotalMod = 1.0f;
    float ApCoeffMod = 1.0f;
    int32 DoneTotal = 0;
 
    // Pet damage?
    if (GetTypeId() == TypeID::TYPEID_UNIT && !ToCreature()->IsPet())
        DoneTotalMod *= ToCreature()->GetSpellDamageMod(ToCreature()->GetCreatureTemplate()->rank);
 
    // Some spells don't benefit from pct done mods
    if (!(spellProto->AttributesEx6 & SPELL_ATTR6_NO_DONE_PCT_DAMAGE_MODS))
    {
        AuraEffectList const& mModDamagePercentDone = GetAuraEffectsByType(SPELL_AURA_MOD_DAMAGE_PERCENT_DONE);
        for (AuraEffectList::const_iterator i = mModDamagePercentDone.begin(); i != mModDamagePercentDone.end(); ++i)
        {
            if (spellProto->EquippedItemClass == -1 && (*i)->GetSpellInfo()->EquippedItemClass != -1)    //prevent apply mods from weapon specific case to non weapon specific spells (Example: thunder clap and two-handed weapon specialization)
                continue;
 
            if ((*i)->GetMiscValue() & spellProto->GetSchoolMask())
            {
                if ((*i)->GetSpellInfo()->EquippedItemClass == -1)
                    AddPct(DoneTotalMod, (*i)->GetAmount());
                else if (!((*i)->GetSpellInfo()->AttributesEx5 & SPELL_ATTR5_SPECIAL_ITEM_CLASS_CHECK) && ((*i)->GetSpellInfo()->EquippedItemSubClassMask == 0))
                    AddPct(DoneTotalMod, (*i)->GetAmount());
                else if (ToPlayer() && ToPlayer()->HasItemFitToSpellRequirements((*i)->GetSpellInfo()))
                    AddPct(DoneTotalMod, (*i)->GetAmount());
            }
        }
    }
 
    uint32 creatureTypeMask = victim->GetCreatureTypeMask();
    // Add flat bonus from spell damage versus
    DoneTotal += GetTotalAuraModifierByMiscMask(SPELL_AURA_MOD_FLAT_SPELL_DAMAGE_VERSUS, creatureTypeMask);
    AuraEffectList const& mDamageDoneVersus = GetAuraEffectsByType(SPELL_AURA_MOD_DAMAGE_DONE_VERSUS);
    for (AuraEffectList::const_iterator i = mDamageDoneVersus.begin(); i != mDamageDoneVersus.end(); ++i)
        if (creatureTypeMask & uint32((*i)->GetMiscValue()))
            AddPct(DoneTotalMod, (*i)->GetAmount());
 
    // bonus against aurastate
    AuraEffectList const& mDamageDoneVersusAurastate = GetAuraEffectsByType(SPELL_AURA_MOD_DAMAGE_DONE_VERSUS_AURASTATE);
    for (AuraEffectList::const_iterator i = mDamageDoneVersusAurastate.begin(); i != mDamageDoneVersusAurastate.end(); ++i)
        if (victim->HasAuraState(AuraStateType((*i)->GetMiscValue())))
            AddPct(DoneTotalMod, (*i)->GetAmount());
 
    // Add SPELL_AURA_MOD_DAMAGE_DONE_FOR_MECHANIC percent bonus
    AddPct(DoneTotalMod, GetTotalAuraModifierByMiscValue(SPELL_AURA_MOD_DAMAGE_DONE_FOR_MECHANIC, spellProto->Mechanic));
 
    // done scripted mod (take it from owner)
    Unit const* owner = GetOwner() ? GetOwner() : this;
    AuraEffectList const& mOverrideClassScript = owner->GetAuraEffectsByType(SPELL_AURA_OVERRIDE_CLASS_SCRIPTS);
    for (AuraEffectList::const_iterator i = mOverrideClassScript.begin(); i != mOverrideClassScript.end(); ++i)
    {
        if (!(*i)->IsAffectingSpell(spellProto))
            continue;
 
        switch ((*i)->GetMiscValue())
        {
            case 5481: // Starfire Bonus // 5.4.8
            {
                if (victim->GetAuraEffect(SPELL_AURA_PERIODIC_DAMAGE, SPELLFAMILY_DRUID, 0x200002, 0, 0))
                    AddPct(DoneTotalMod, (*i)->GetAmount());
                break;
            }
        }
    }
 
    // Custom scripted damage
    switch (spellProto->SpellFamilyName)
    {
        case SPELLFAMILY_MAGE:
            // Ice Lance
            if (spellProto->SpellIconID == 186)
                if (victim->HasAuraState(AURA_STATE_FROZEN, spellProto, this))
                    DoneTotalMod *= 2.0f;
 
            // Torment the weak
            if (spellProto->GetSchoolMask() & SPELL_SCHOOL_MASK_ARCANE)
            {
                if (victim->HasAuraWithMechanic((1 << MECHANIC_SNARE) | (1 << MECHANIC_SLOW_ATTACK)))
                {
                    AuraEffectList const& mDumyAuras = GetAuraEffectsByType(SPELL_AURA_DUMMY);
                    for (AuraEffectList::const_iterator i = mDumyAuras.begin(); i != mDumyAuras.end(); ++i)
                    {
                        if ((*i)->GetSpellInfo()->SpellIconID == 2215)
                        {
                            AddPct(DoneTotalMod, (*i)->GetAmount());
                            break;
                        }
                    }
                }
            }
            break;
        case SPELLFAMILY_PRIEST:
            // Smite
            if (spellProto->SpellFamilyFlags[0] & 0x00000080)
            {
                // Glyph of Smite
                if (AuraEffect* aurEff = GetAuraEffect(55692, 0))
                    if (victim->GetAuraEffect(SPELL_AURA_PERIODIC_DAMAGE, SPELLFAMILY_PRIEST, 0x100000, 0, 0, GetGUID()))
                        AddPct(DoneTotalMod, aurEff->GetAmount());
            }
            break;
        case SPELLFAMILY_WARLOCK:
            // Fire and Brimstone
            if (spellProto->SpellFamilyFlags[1] & 0x00020040)
                if (victim->HasAuraState(AURA_STATE_CONFLAGRATE))
                {
                    AuraEffectList const& mDumyAuras = GetAuraEffectsByType(SPELL_AURA_DUMMY);
                    for (AuraEffectList::const_iterator i = mDumyAuras.begin(); i != mDumyAuras.end(); ++i)
                        if ((*i)->GetSpellInfo()->SpellIconID == 3173)
                        {
                            AddPct(DoneTotalMod, (*i)->GetAmount());
                            break;
                        }
                }
            // Drain Soul - increased damage for targets under 25 % HP
            if (spellProto->SpellFamilyFlags[0] & 0x00004000)
                if (HasAura(100001))
                    DoneTotalMod *= 2;
            // Shadow Bite (30% increase from each dot)
            if (spellProto->SpellFamilyFlags[1] & 0x00400000 && IsPet())
                if (uint8 count = victim->GetDoTsByCaster(GetOwnerGUID()))
                    AddPct(DoneTotalMod, 30 * count);
            break;
    }
 
    // Done fixed damage bonus auras
    int32 DoneAdvertisedBenefit = SpellBaseDamageBonusDone(spellProto->GetSchoolMask());
    // Pets just add their bonus damage to their spell damage
    // note that their spell damage is just gain of their own auras
    if (HasUnitTypeMask(UNIT_MASK_GUARDIAN))
        DoneAdvertisedBenefit += ((Guardian*)this)->GetBonusDamage();
 
    // Check for table values
    float coeff = 0;
    SpellBonusEntry const* bonus = sSpellMgr->GetSpellBonusData(spellProto->Id);
    if (bonus)
    {
        if (damagetype == DOT)
        {
            coeff = bonus->dot_damage;
            if (bonus->ap_dot_bonus > 0)
            {
                WeaponAttackType attType = (spellProto->IsRangedWeaponSpell() && spellProto->DmgClass != SPELL_DAMAGE_CLASS_MELEE) ? WeaponAttackType::RANGED_ATTACK : WeaponAttackType::BASE_ATTACK;
                float APbonus = float(victim->GetTotalAuraModifier(attType == WeaponAttackType::BASE_ATTACK ? SPELL_AURA_MELEE_ATTACK_POWER_ATTACKER_BONUS : SPELL_AURA_RANGED_ATTACK_POWER_ATTACKER_BONUS));
                APbonus += GetTotalAttackPowerValue(attType);
                DoneTotal += int32(bonus->ap_dot_bonus * stack * ApCoeffMod * APbonus);
            }
        }
        else
        {
            coeff = bonus->direct_damage;
            if (bonus->ap_bonus > 0)
            {
                WeaponAttackType attType = (spellProto->IsRangedWeaponSpell() && spellProto->DmgClass != SPELL_DAMAGE_CLASS_MELEE) ? WeaponAttackType::RANGED_ATTACK : WeaponAttackType::BASE_ATTACK;
                float APbonus = float(victim->GetTotalAuraModifier(attType == WeaponAttackType::BASE_ATTACK ? SPELL_AURA_MELEE_ATTACK_POWER_ATTACKER_BONUS : SPELL_AURA_RANGED_ATTACK_POWER_ATTACKER_BONUS));
                APbonus += GetTotalAttackPowerValue(attType);
                DoneTotal += int32(bonus->ap_bonus * stack * ApCoeffMod * APbonus);
            }
        }
    }
    // Default calculation
    if (DoneAdvertisedBenefit)
    {
        if (!bonus || coeff < 0)
            coeff = CalculateDefaultCoefficient(spellProto, damagetype) * int32(stack);
 
        float factorMod = CalculateLevelPenalty(spellProto) * stack;
 
        if (Player* modOwner = GetSpellModOwner())
        {
            coeff *= 100.0f;
            modOwner->ApplySpellMod(spellProto->Id, SPELLMOD_BONUS_MULTIPLIER, coeff);
            coeff /= 100.0f;
        }
        DoneTotal += int32(DoneAdvertisedBenefit * coeff * factorMod);
    }
 
    float tmpDamage = (int32(pdamage) + DoneTotal) * DoneTotalMod;
    // apply spellmod to Done damage (flat and pct)
    if (Player* modOwner = GetSpellModOwner())
        modOwner->ApplySpellMod(spellProto->Id, damagetype == DOT ? SPELLMOD_DOT : SPELLMOD_DAMAGE, tmpDamage);
 
    return uint32(std::max(tmpDamage, 0.0f));
}
 
uint32 Unit::SpellDamageBonusTaken(Unit* caster, SpellInfo const* spellProto, uint32 pdamage, DamageEffectType damagetype, uint32 stack) const
{
    if (!spellProto || damagetype == DIRECT_DAMAGE)
        return pdamage;
 
    int32 TakenTotal = 0;
    float TakenTotalMod = 1.0f;
    float TakenTotalCasterMod = 0.0f;
 
    // get all auras from caster that allow the spell to ignore resistance (sanctified wrath)
    AuraEffectList const& IgnoreResistAuras = caster->GetAuraEffectsByType(SPELL_AURA_MOD_IGNORE_TARGET_RESIST);
    for (AuraEffectList::const_iterator i = IgnoreResistAuras.begin(); i != IgnoreResistAuras.end(); ++i)
    {
        if ((*i)->GetMiscValue() & spellProto->GetSchoolMask())
            TakenTotalCasterMod += (float((*i)->GetAmount()));
    }
 
    // from positive and negative SPELL_AURA_MOD_DAMAGE_PERCENT_TAKEN
    // multiplicative bonus, for example Dispersion + Shadowform (0.10*0.85=0.085)
    TakenTotalMod *= GetTotalAuraMultiplierByMiscMask(SPELL_AURA_MOD_DAMAGE_PERCENT_TAKEN, spellProto->GetSchoolMask());
 
    //.. taken pct: dummy auras
    AuraEffectList const& mDummyAuras = GetAuraEffectsByType(SPELL_AURA_DUMMY);
    for (AuraEffectList::const_iterator i = mDummyAuras.begin(); i != mDummyAuras.end(); ++i)
    {
        switch ((*i)->GetSpellInfo()->SpellIconID)
        {
            // Cheat Death
            case 2109:
                if ((*i)->GetMiscValue() & SPELL_SCHOOL_MASK_NORMAL)
                {
                    if (GetTypeId() != TypeID::TYPEID_PLAYER)
                        continue;
                    AddPct(TakenTotalMod, (*i)->GetAmount());
                }
                break;
        }
    }
 
    // From caster spells
    AuraEffectList const& mOwnerTaken = GetAuraEffectsByType(SPELL_AURA_MOD_DAMAGE_FROM_CASTER);
    for (AuraEffectList::const_iterator i = mOwnerTaken.begin(); i != mOwnerTaken.end(); ++i)
        if ((*i)->GetCasterGUID() == caster->GetGUID() && (*i)->IsAffectingSpell(spellProto))
            AddPct(TakenTotalMod, (*i)->GetAmount());
 
    // Mod damage from spell mechanic
    if (uint32 mechanicMask = spellProto->GetAllEffectsMechanicMask())
    {
        AuraEffectList const& mDamageDoneMechanic = GetAuraEffectsByType(SPELL_AURA_MOD_MECHANIC_DAMAGE_TAKEN_PERCENT);
        for (AuraEffectList::const_iterator i = mDamageDoneMechanic.begin(); i != mDamageDoneMechanic.end(); ++i)
            if (mechanicMask & uint32(1 << ((*i)->GetMiscValue())))
                AddPct(TakenTotalMod, (*i)->GetAmount());
    }
 
    int32 TakenAdvertisedBenefit = SpellBaseDamageBonusTaken(spellProto->GetSchoolMask());
 
    // Check for table values
    float coeff = 0;
    SpellBonusEntry const* bonus = sSpellMgr->GetSpellBonusData(spellProto->Id);
    if (bonus)
        coeff = (damagetype == DOT) ? bonus->dot_damage : bonus->direct_damage;
 
    // Default calculation
    if (TakenAdvertisedBenefit)
    {
        if (!bonus || coeff < 0)
            coeff = CalculateDefaultCoefficient(spellProto, damagetype) * int32(stack);
 
        float factorMod = CalculateLevelPenalty(spellProto) * stack;
        // level penalty still applied on Taken bonus - is it blizzlike?
        if (Player* modOwner = GetSpellModOwner())
        {
            coeff *= 100.0f;
            modOwner->ApplySpellMod(spellProto->Id, SPELLMOD_BONUS_MULTIPLIER, coeff);
            coeff /= 100.0f;
        }
        TakenTotal += int32(TakenAdvertisedBenefit * coeff * factorMod);
    }
 
    float tmpDamage = 0.0f;
 
    if (TakenTotalCasterMod)
    {
        if (TakenTotal < 0)
        {
            if (TakenTotalMod < 1)
                tmpDamage = ((float(CalculatePct(pdamage, TakenTotalCasterMod) + TakenTotal) * TakenTotalMod) + CalculatePct(pdamage, TakenTotalCasterMod));
            else
                tmpDamage = ((float(CalculatePct(pdamage, TakenTotalCasterMod) + TakenTotal) + CalculatePct(pdamage, TakenTotalCasterMod)) * TakenTotalMod);
        }
        else if (TakenTotalMod < 1)
            tmpDamage = ((CalculatePct(float(pdamage) + TakenTotal, TakenTotalCasterMod) * TakenTotalMod) + CalculatePct(float(pdamage) + TakenTotal, TakenTotalCasterMod));
    }
    if (!tmpDamage)
        tmpDamage = (float(pdamage) + TakenTotal) * TakenTotalMod;
 
    return uint32(std::max(tmpDamage, 0.0f));
}
 
uint32 Unit::SpellHealingBonusDone(Unit* victim, SpellInfo const* spellProto, uint32 healamount, DamageEffectType damagetype, uint32 stack) const
{
    // For totems get healing bonus from owner (statue isn't totem in fact)
    if (GetTypeId() == TypeID::TYPEID_UNIT && IsTotem())
        if (Unit* owner = GetOwner())
            return owner->SpellHealingBonusDone(victim, spellProto, healamount, damagetype, stack);
 
    // No bonus healing for potion spells
    if (spellProto->SpellFamilyName == SPELLFAMILY_POTION)
        return healamount;
 
    float DoneTotalMod = 1.0f;
    int32 DoneTotal = 0;
 
    // Healing done percent
    AuraEffectList const& mHealingDonePct = GetAuraEffectsByType(SPELL_AURA_MOD_HEALING_DONE_PERCENT);
    for (AuraEffectList::const_iterator i = mHealingDonePct.begin(); i != mHealingDonePct.end(); ++i)
        AddPct(DoneTotalMod, (*i)->GetAmount());
 
    // done scripted mod (take it from owner)
    Unit const* owner = GetOwner() ? GetOwner() : this;
    AuraEffectList const& mOverrideClassScript = owner->GetAuraEffectsByType(SPELL_AURA_OVERRIDE_CLASS_SCRIPTS);
    for (AuraEffectList::const_iterator i = mOverrideClassScript.begin(); i != mOverrideClassScript.end(); ++i)
    {
        if (!(*i)->IsAffectingSpell(spellProto))
            continue;
        switch ((*i)->GetMiscValue())
        {
            case 8477: // Nourish Heal Boost // 5.4.8
            {
                int32 stepPercent = (*i)->GetAmount();
                int32 modPercent = 0;
                AuraApplicationMap const& victimAuras = victim->GetAppliedAuras();
                for (AuraApplicationMap::const_iterator itr = victimAuras.begin(); itr != victimAuras.end(); ++itr)
                {
                    Aura const* aura = itr->second->GetBase();
                    if (aura->GetCasterGUID() != GetGUID())
                        continue;
                    SpellInfo const* m_spell = aura->GetSpellInfo();
                    if (m_spell->SpellFamilyName != SPELLFAMILY_DRUID ||
                        !(m_spell->SpellFamilyFlags[1] & 0x00000010 || m_spell->SpellFamilyFlags[0] & 0x50))
                        continue;
                    modPercent += stepPercent * aura->GetStackAmount();
                }
                AddPct(DoneTotalMod, modPercent);
                break;
            }
            default:
                break;
        }
    }
 
    // Done fixed damage bonus auras
    int32 DoneAdvertisedBenefit = SpellBaseHealingBonusDone(spellProto->GetSchoolMask());
 
    // Check for table values
    SpellBonusEntry const* bonus = sSpellMgr->GetSpellBonusData(spellProto->Id);
    float coeff = 0;
    float factorMod = 1.0f;
    if (bonus)
    {
        if (damagetype == DOT)
        {
            coeff = bonus->dot_damage;
            if (bonus->ap_dot_bonus > 0)
                DoneTotal += int32(bonus->ap_dot_bonus * stack * GetTotalAttackPowerValue(
                    (spellProto->IsRangedWeaponSpell() && spellProto->DmgClass != SPELL_DAMAGE_CLASS_MELEE) ? WeaponAttackType::RANGED_ATTACK : WeaponAttackType::BASE_ATTACK));
        }
        else
        {
            coeff = bonus->direct_damage;
            if (bonus->ap_bonus > 0)
                DoneTotal += int32(bonus->ap_bonus * stack * GetTotalAttackPowerValue(
                    (spellProto->IsRangedWeaponSpell() && spellProto->DmgClass != SPELL_DAMAGE_CLASS_MELEE) ? WeaponAttackType::RANGED_ATTACK : WeaponAttackType::BASE_ATTACK));
        }
    }
    else
    {
        // No bonus healing for SPELL_DAMAGE_CLASS_NONE class spells by default
        if (spellProto->DmgClass == SPELL_DAMAGE_CLASS_NONE)
            return healamount;
    }
 
    // Default calculation
    if (DoneAdvertisedBenefit)
    {
        if (!bonus || coeff < 0)
            coeff = CalculateDefaultCoefficient(spellProto, damagetype) * int32(stack) * 1.88f;  // As wowwiki says: C = (Cast Time / 3.5) * 1.88 (for healing spells)
 
        factorMod *= CalculateLevelPenalty(spellProto) * stack;
 
        if (Player* modOwner = GetSpellModOwner())
        {
            coeff *= 100.0f;
            modOwner->ApplySpellMod(spellProto->Id, SPELLMOD_BONUS_MULTIPLIER, coeff);
            coeff /= 100.0f;
        }
 
        DoneTotal += int32(DoneAdvertisedBenefit * coeff * factorMod);
    }
 
    for (uint8 i = 0; i < MAX_SPELL_EFFECTS; ++i)
    {
        switch (spellProto->Effects[i].ApplyAuraName)
        {
            // Bonus healing does not apply to these spells
            case SPELL_AURA_PERIODIC_LEECH:
            case SPELL_AURA_PERIODIC_HEALTH_FUNNEL:
                DoneTotal = 0;
                break;
        }
        if (spellProto->Effects[i].Effect == SPELL_EFFECT_HEALTH_LEECH)
            DoneTotal = 0;
    }
 
    // use float as more appropriate for negative values and percent applying
    float heal = float(int32(healamount) + DoneTotal) * DoneTotalMod;
    // apply spellmod to Done amount
    if (Player* modOwner = GetSpellModOwner())
        modOwner->ApplySpellMod(spellProto->Id, damagetype == DOT ? SPELLMOD_DOT : SPELLMOD_DAMAGE, heal);
 
    return uint32(std::max(heal, 0.0f));
}
 
uint32 Unit::SpellHealingBonusTaken(Unit* caster, SpellInfo const* spellProto, uint32 healamount, DamageEffectType damagetype, uint32 stack) const
{
    float TakenTotalMod = 1.0f;
 
    // Healing taken percent
    float minval = float(GetMaxNegativeAuraModifier(SPELL_AURA_MOD_HEALING_PCT));
    if (minval)
        AddPct(TakenTotalMod, minval);
 
    float maxval = float(GetMaxPositiveAuraModifier(SPELL_AURA_MOD_HEALING_PCT));
    if (maxval)
        AddPct(TakenTotalMod, maxval);
 
    // Tenacity increase healing % taken
    if (AuraEffect const* Tenacity = GetAuraEffect(58549, 0))
        AddPct(TakenTotalMod, Tenacity->GetAmount());
 
    // Healing Done
    int32 TakenTotal = 0;
 
    // Taken fixed damage bonus auras
    int32 TakenAdvertisedBenefit = SpellBaseHealingBonusTaken(spellProto->GetSchoolMask());
 
    // Nourish cast
    if (spellProto->SpellFamilyName == SPELLFAMILY_DRUID && spellProto->SpellFamilyFlags[1] & 0x2000000)
    {
        // Rejuvenation, Regrowth, Lifebloom, or Wild Growth
        if (GetAuraEffect(SPELL_AURA_PERIODIC_HEAL, SPELLFAMILY_DRUID, 0x50, 0x4000010, 0))
            // increase healing by 20%
            TakenTotalMod *= 1.2f;
    }
 
    // Check for table values
    SpellBonusEntry const* bonus = sSpellMgr->GetSpellBonusData(spellProto->Id);
    float coeff = 0;
    float factorMod = 1.0f;
    if (bonus)
        coeff = (damagetype == DOT) ? bonus->dot_damage : bonus->direct_damage;
    else
    {
        // No bonus healing for SPELL_DAMAGE_CLASS_NONE class spells by default
        if (spellProto->DmgClass == SPELL_DAMAGE_CLASS_NONE)
        {
            healamount = uint32(std::max((float(healamount) * TakenTotalMod), 0.0f));
            return healamount;
        }
    }
 
    // Default calculation
    if (TakenAdvertisedBenefit)
    {
        if (!bonus || coeff < 0)
            coeff = CalculateDefaultCoefficient(spellProto, damagetype) * int32(stack) * 1.88f;  // As wowwiki says: C = (Cast Time / 3.5) * 1.88 (for healing spells)
 
        factorMod *= CalculateLevelPenalty(spellProto) * int32(stack);
        if (Player* modOwner = GetSpellModOwner())
        {
            coeff *= 100.0f;
            modOwner->ApplySpellMod(spellProto->Id, SPELLMOD_BONUS_MULTIPLIER, coeff);
            coeff /= 100.0f;
        }
 
        TakenTotal += int32(TakenAdvertisedBenefit * coeff * factorMod);
    }
 
    if (damagetype == DOT)
    {
        // Healing over time taken percent
        float val_hot = GetMaxPositiveAuraModifier(SPELL_AURA_MOD_HOT_PCT);
        if (val_hot)
            TakenTotalMod *= (100.0f + val_hot) / 100.0f;
    }
 
    AuraEffectList const& mHealingGet = GetAuraEffectsByType(SPELL_AURA_MOD_HEALING_RECEIVED);
    for (AuraEffectList::const_iterator i = mHealingGet.begin(); i != mHealingGet.end(); ++i)
        if (caster->GetGUID() == (*i)->GetCasterGUID() && (*i)->IsAffectingSpell(spellProto))
            AddPct(TakenTotalMod, (*i)->GetAmount());
 
    for (uint8 i = 0; i < MAX_SPELL_EFFECTS; ++i)
    {
        switch (spellProto->Effects[i].ApplyAuraName)
        {
            // Bonus healing does not apply to these spells
            case SPELL_AURA_PERIODIC_LEECH:
            case SPELL_AURA_PERIODIC_HEALTH_FUNNEL:
                TakenTotal = 0;
                break;
        }
        if (spellProto->Effects[i].Effect == SPELL_EFFECT_HEALTH_LEECH)
            TakenTotal = 0;
    }
 
    float heal = float(int32(healamount) + TakenTotal) * TakenTotalMod;
 
    return uint32(std::max(heal, 0.0f));
}
 
uint32 Unit::MeleeDamageBonusDone(Unit* victim, uint32 pdamage, WeaponAttackType attType, SpellInfo const* spellProto)
{
    if (!victim || pdamage == 0)
        return 0;
 
    uint32 creatureTypeMask = victim->GetCreatureTypeMask();
 
    // Done fixed damage bonus auras
    int32 DoneFlatBenefit = 0;
 
    // ..done
    AuraEffectList const& mDamageDoneCreature = GetAuraEffectsByType(SPELL_AURA_MOD_DAMAGE_DONE_CREATURE);
    for (AuraEffectList::const_iterator i = mDamageDoneCreature.begin(); i != mDamageDoneCreature.end(); ++i)
        if (creatureTypeMask & uint32((*i)->GetMiscValue()))
            DoneFlatBenefit += (*i)->GetAmount();
 
    // ..done
    // SPELL_AURA_MOD_DAMAGE_DONE included in weapon damage
 
    // ..done (base at attack power for marked target and base at attack power for creature type)
    int32 APbonus = 0;
 
    if (attType == WeaponAttackType::RANGED_ATTACK)
    {
        APbonus += victim->GetTotalAuraModifier(SPELL_AURA_RANGED_ATTACK_POWER_ATTACKER_BONUS);
 
        // ..done (base at attack power and creature type)
        AuraEffectList const& mCreatureAttackPower = GetAuraEffectsByType(SPELL_AURA_MOD_RANGED_ATTACK_POWER_VERSUS);
        for (AuraEffectList::const_iterator i = mCreatureAttackPower.begin(); i != mCreatureAttackPower.end(); ++i)
            if (creatureTypeMask & uint32((*i)->GetMiscValue()))
                APbonus += (*i)->GetAmount();
    }
    else
    {
        APbonus += victim->GetTotalAuraModifier(SPELL_AURA_MELEE_ATTACK_POWER_ATTACKER_BONUS);
 
        // ..done (base at attack power and creature type)
        AuraEffectList const& mCreatureAttackPower = GetAuraEffectsByType(SPELL_AURA_MOD_MELEE_ATTACK_POWER_VERSUS);
        for (AuraEffectList::const_iterator i = mCreatureAttackPower.begin(); i != mCreatureAttackPower.end(); ++i)
            if (creatureTypeMask & uint32((*i)->GetMiscValue()))
                APbonus += (*i)->GetAmount();
    }
 
    if (APbonus != 0)                                       // Can be negative
    {
        bool normalized = false;
        if (spellProto)
            for (uint8 i = 0; i < MAX_SPELL_EFFECTS; ++i)
                if (spellProto->Effects[i].Effect == SPELL_EFFECT_NORMALIZED_WEAPON_DMG)
                {
                    normalized = true;
                    break;
                }
        DoneFlatBenefit += int32(APbonus / 14.0f * GetAPMultiplier(attType, normalized));
    }
 
    // Done total percent damage auras
    float DoneTotalMod = 1.0f;
 
    // Some spells don't benefit from pct done mods
    if (spellProto)
        if (!(spellProto->AttributesEx6 & SPELL_ATTR6_NO_DONE_PCT_DAMAGE_MODS))
        {
            AuraEffectList const& mModDamagePercentDone = GetAuraEffectsByType(SPELL_AURA_MOD_DAMAGE_PERCENT_DONE);
            for (AuraEffectList::const_iterator i = mModDamagePercentDone.begin(); i != mModDamagePercentDone.end(); ++i)
            {
                if ((*i)->GetMiscValue() & spellProto->GetSchoolMask() && !(spellProto->GetSchoolMask() & SPELL_SCHOOL_MASK_NORMAL))
                {
                    if ((*i)->GetSpellInfo()->EquippedItemClass == -1)
                        AddPct(DoneTotalMod, (*i)->GetAmount());
                    else if (!((*i)->GetSpellInfo()->AttributesEx5 & SPELL_ATTR5_SPECIAL_ITEM_CLASS_CHECK) && ((*i)->GetSpellInfo()->EquippedItemSubClassMask == 0))
                        AddPct(DoneTotalMod, (*i)->GetAmount());
                    else if (ToPlayer() && ToPlayer()->HasItemFitToSpellRequirements((*i)->GetSpellInfo()))
                        AddPct(DoneTotalMod, (*i)->GetAmount());
                }
            }
        }
 
    AuraEffectList const& mDamageDoneVersus = GetAuraEffectsByType(SPELL_AURA_MOD_DAMAGE_DONE_VERSUS);
    for (AuraEffectList::const_iterator i = mDamageDoneVersus.begin(); i != mDamageDoneVersus.end(); ++i)
        if (creatureTypeMask & uint32((*i)->GetMiscValue()))
            AddPct(DoneTotalMod, (*i)->GetAmount());
 
    // bonus against aurastate
    AuraEffectList const& mDamageDoneVersusAurastate = GetAuraEffectsByType(SPELL_AURA_MOD_DAMAGE_DONE_VERSUS_AURASTATE);
    for (AuraEffectList::const_iterator i = mDamageDoneVersusAurastate.begin(); i != mDamageDoneVersusAurastate.end(); ++i)
        if (victim->HasAuraState(AuraStateType((*i)->GetMiscValue())))
            AddPct(DoneTotalMod, (*i)->GetAmount());
 
    // Add SPELL_AURA_MOD_DAMAGE_DONE_FOR_MECHANIC percent bonus
    if (spellProto)
        AddPct(DoneTotalMod, GetTotalAuraModifierByMiscValue(SPELL_AURA_MOD_DAMAGE_DONE_FOR_MECHANIC, spellProto->Mechanic));
 
    float tmpDamage = float(int32(pdamage) + DoneFlatBenefit) * DoneTotalMod;
 
    // apply spellmod to Done damage
    if (spellProto)
        if (Player* modOwner = GetSpellModOwner())
            modOwner->ApplySpellMod(spellProto->Id, SPELLMOD_DAMAGE, tmpDamage);
 
    // bonus result can be negative
    return uint32(std::max(tmpDamage, 0.0f));
}
 
uint32 Unit::MeleeDamageBonusTaken(Unit* attacker, uint32 pdamage, WeaponAttackType attType, SpellInfo const* spellProto)
{
    if (pdamage == 0)
        return 0;
 
    int32 TakenFlatBenefit = 0;
    float TakenTotalCasterMod = 0.0f;
 
    // get all auras from caster that allow the spell to ignore resistance (sanctified wrath)
    SpellSchoolMask attackSchoolMask = spellProto ? spellProto->GetSchoolMask() : SPELL_SCHOOL_MASK_NORMAL;
    AuraEffectList const& IgnoreResistAuras = attacker->GetAuraEffectsByType(SPELL_AURA_MOD_IGNORE_TARGET_RESIST);
    for (AuraEffectList::const_iterator i = IgnoreResistAuras.begin(); i != IgnoreResistAuras.end(); ++i)
    {
        if ((*i)->GetMiscValue() & attackSchoolMask)
            TakenTotalCasterMod += (float((*i)->GetAmount()));
    }
 
    // ..taken
    AuraEffectList const& mDamageTaken = GetAuraEffectsByType(SPELL_AURA_MOD_DAMAGE_TAKEN);
    for (AuraEffectList::const_iterator i = mDamageTaken.begin(); i != mDamageTaken.end(); ++i)
        if ((*i)->GetMiscValue() & attacker->GetMeleeDamageSchoolMask())
            TakenFlatBenefit += (*i)->GetAmount();
 
    if (attType != WeaponAttackType::RANGED_ATTACK)
        TakenFlatBenefit += GetTotalAuraModifier(SPELL_AURA_MOD_MELEE_DAMAGE_TAKEN);
    else
        TakenFlatBenefit += GetTotalAuraModifier(SPELL_AURA_MOD_RANGED_DAMAGE_TAKEN);
 
    // Taken total percent damage auras
    float TakenTotalMod = 1.0f;
 
    // ..taken
    TakenTotalMod *= GetTotalAuraMultiplierByMiscMask(SPELL_AURA_MOD_DAMAGE_PERCENT_TAKEN, attacker->GetMeleeDamageSchoolMask());
 
    // .. taken pct (special attacks)
    if (spellProto)
    {
        // From caster spells
        AuraEffectList const& mOwnerTaken = GetAuraEffectsByType(SPELL_AURA_MOD_DAMAGE_FROM_CASTER);
        for (AuraEffectList::const_iterator i = mOwnerTaken.begin(); i != mOwnerTaken.end(); ++i)
            if ((*i)->GetCasterGUID() == attacker->GetGUID() && (*i)->IsAffectingSpell(spellProto))
                AddPct(TakenTotalMod, (*i)->GetAmount());
 
        // Mod damage from spell mechanic
        uint32 mechanicMask = spellProto->GetAllEffectsMechanicMask();
 
        // Shred, Maul - "Effects which increase Bleed damage also increase Shred damage"
        if (spellProto->SpellFamilyName == SPELLFAMILY_DRUID && spellProto->SpellFamilyFlags[0] & 0x00008800)
            mechanicMask |= (1 << MECHANIC_BLEED);
 
        if (mechanicMask)
        {
            AuraEffectList const& mDamageDoneMechanic = GetAuraEffectsByType(SPELL_AURA_MOD_MECHANIC_DAMAGE_TAKEN_PERCENT);
            for (AuraEffectList::const_iterator i = mDamageDoneMechanic.begin(); i != mDamageDoneMechanic.end(); ++i)
                if (mechanicMask & uint32(1 << ((*i)->GetMiscValue())))
                    AddPct(TakenTotalMod, (*i)->GetAmount());
        }
    }
 
    // .. taken pct: dummy auras
    AuraEffectList const& mDummyAuras = GetAuraEffectsByType(SPELL_AURA_DUMMY);
    for (AuraEffectList::const_iterator i = mDummyAuras.begin(); i != mDummyAuras.end(); ++i)
    {
        switch ((*i)->GetSpellInfo()->SpellIconID)
        {
            // Cheat Death
            case 2109:
                if ((*i)->GetMiscValue() & SPELL_SCHOOL_MASK_NORMAL)
                {
                    if (GetTypeId() != TypeID::TYPEID_PLAYER)
                        continue;
                    float mod = ToPlayer()->GetRatingBonusValue(CombatRating::CR_RESILIENCE_PLAYER_DAMAGE_TAKEN) * (-8.0f);
                    AddPct(TakenTotalMod, std::max(mod, float((*i)->GetAmount())));
                }
                break;
        }
    }
 
    if (attType != WeaponAttackType::RANGED_ATTACK)
    {
        AuraEffectList const& mModMeleeDamageTakenPercent = GetAuraEffectsByType(SPELL_AURA_MOD_MELEE_DAMAGE_TAKEN_PCT);
        for (AuraEffectList::const_iterator i = mModMeleeDamageTakenPercent.begin(); i != mModMeleeDamageTakenPercent.end(); ++i)
            AddPct(TakenTotalMod, (*i)->GetAmount());
    }
    else
    {
        AuraEffectList const& mModRangedDamageTakenPercent = GetAuraEffectsByType(SPELL_AURA_MOD_RANGED_DAMAGE_TAKEN_PCT);
        for (AuraEffectList::const_iterator i = mModRangedDamageTakenPercent.begin(); i != mModRangedDamageTakenPercent.end(); ++i)
            AddPct(TakenTotalMod, (*i)->GetAmount());
    }
 
    float tmpDamage = 0.0f;
 
    if (TakenTotalCasterMod)
    {
        if (TakenFlatBenefit < 0)
        {
            if (TakenTotalMod < 1)
                tmpDamage = ((float(CalculatePct(pdamage, TakenTotalCasterMod) + TakenFlatBenefit) * TakenTotalMod) + CalculatePct(pdamage, TakenTotalCasterMod));
            else
                tmpDamage = ((float(CalculatePct(pdamage, TakenTotalCasterMod) + TakenFlatBenefit) + CalculatePct(pdamage, TakenTotalCasterMod)) * TakenTotalMod);
        }
        else if (TakenTotalMod < 1)
            tmpDamage = ((CalculatePct(float(pdamage) + TakenFlatBenefit, TakenTotalCasterMod) * TakenTotalMod) + CalculatePct(float(pdamage) + TakenFlatBenefit, TakenTotalCasterMod));
    }
    if (!tmpDamage)
        tmpDamage = (float(pdamage) + TakenFlatBenefit) * TakenTotalMod;
 
    // bonus result can be negative
    return uint32(std::max(tmpDamage, 0.0f));
}
 
float Unit::GetAPMultiplier(WeaponAttackType attType, bool normalized)
{
    if (!normalized || GetTypeId() != TypeID::TYPEID_PLAYER)
        return float(GetAttackTime(attType)) / 1000.0f;
 
    Item* Weapon = ToPlayer()->GetWeaponForAttack(attType, true);
    if (!Weapon)
        return 2.4f;                                         // fist attack
 
    switch (Weapon->GetTemplate()->InventoryType)
    {
        case INVTYPE_2HWEAPON:
            return 3.3f;
        case INVTYPE_RANGED:
        case INVTYPE_RANGEDRIGHT:
        case INVTYPE_THROWN:
            return 2.8f;
        case INVTYPE_WEAPON:
        case INVTYPE_WEAPONMAINHAND:
        case INVTYPE_WEAPONOFFHAND:
        default:
            return Weapon->GetTemplate()->SubClass == ITEM_SUBCLASS_WEAPON_DAGGER ? 1.7f : 2.4f;
    }
}