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SpellMgr.cpp
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SpellMgr.cpp
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/*
* Copyright (C) 2005-2010 MaNGOS <http://getmangos.com/>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "SpellMgr.h"
#include "ObjectMgr.h"
#include "SpellAuraDefines.h"
#include "ProgressBar.h"
#include "DBCStores.h"
#include "World.h"
#include "Chat.h"
#include "Spell.h"
#include "BattleGroundMgr.h"
#include "MapManager.h"
SpellMgr::SpellMgr()
{
}
SpellMgr::~SpellMgr()
{
}
SpellMgr& SpellMgr::Instance()
{
static SpellMgr spellMgr;
return spellMgr;
}
int32 GetSpellDuration(SpellEntry const *spellInfo)
{
if(!spellInfo)
return 0;
SpellDurationEntry const *du = sSpellDurationStore.LookupEntry(spellInfo->DurationIndex);
if(!du)
return 0;
return (du->Duration[0] == -1) ? -1 : abs(du->Duration[0]);
}
int32 GetSpellMaxDuration(SpellEntry const *spellInfo)
{
if(!spellInfo)
return 0;
SpellDurationEntry const *du = sSpellDurationStore.LookupEntry(spellInfo->DurationIndex);
if(!du)
return 0;
return (du->Duration[2] == -1) ? -1 : abs(du->Duration[2]);
}
uint32 GetSpellCastTime(SpellEntry const* spellInfo, Spell const* spell)
{
if (spell)
{
// some triggered spells have data only usable for client
if (spell->IsTriggeredSpellWithRedundentData())
return 0;
// spell targeted to non-trading trade slot item instant at trade success apply
if (spell->GetCaster()->GetTypeId()==TYPEID_PLAYER)
if (TradeData* my_trade = ((Player*)(spell->GetCaster()))->GetTradeData())
if (Item* nonTrade = my_trade->GetTraderData()->GetItem(TRADE_SLOT_NONTRADED))
if (nonTrade == spell->m_targets.getItemTarget())
return 0;
}
SpellCastTimesEntry const *spellCastTimeEntry = sSpellCastTimesStore.LookupEntry(spellInfo->CastingTimeIndex);
// not all spells have cast time index and this is all is pasiive abilities
if (!spellCastTimeEntry)
return 0;
int32 castTime = spellCastTimeEntry->CastTime;
if (spell)
{
if (Player* modOwner = spell->GetCaster()->GetSpellModOwner())
modOwner->ApplySpellMod(spellInfo->Id, SPELLMOD_CASTING_TIME, castTime, spell);
if (!(spellInfo->Attributes & (SPELL_ATTR_UNK4|SPELL_ATTR_TRADESPELL)))
castTime = int32(castTime * spell->GetCaster()->GetFloatValue(UNIT_MOD_CAST_SPEED));
else
{
if (spell->IsRangedSpell() && !spell->IsAutoRepeat())
castTime = int32(castTime * spell->GetCaster()->m_modAttackSpeedPct[RANGED_ATTACK]);
}
}
if (spellInfo->Attributes & SPELL_ATTR_RANGED && (!spell || !spell->IsAutoRepeat()))
castTime += 500;
return (castTime > 0) ? uint32(castTime) : 0;
}
uint32 GetSpellCastTimeForBonus( SpellEntry const *spellProto, DamageEffectType damagetype )
{
uint32 CastingTime = !IsChanneledSpell(spellProto) ? GetSpellCastTime(spellProto) : GetSpellDuration(spellProto);
if (CastingTime > 7000) CastingTime = 7000;
if (CastingTime < 1500) CastingTime = 1500;
if(damagetype == DOT && !IsChanneledSpell(spellProto))
CastingTime = 3500;
int32 overTime = 0;
uint8 effects = 0;
bool DirectDamage = false;
bool AreaEffect = false;
for (uint32 i = 0; i < MAX_EFFECT_INDEX; ++i)
if (IsAreaEffectTarget(Targets(spellProto->EffectImplicitTargetA[i])) || IsAreaEffectTarget(Targets(spellProto->EffectImplicitTargetB[i])))
AreaEffect = true;
for (uint32 i = 0; i < MAX_EFFECT_INDEX; ++i)
{
switch (spellProto->Effect[i])
{
case SPELL_EFFECT_SCHOOL_DAMAGE:
case SPELL_EFFECT_POWER_DRAIN:
case SPELL_EFFECT_HEALTH_LEECH:
case SPELL_EFFECT_ENVIRONMENTAL_DAMAGE:
case SPELL_EFFECT_POWER_BURN:
case SPELL_EFFECT_HEAL:
DirectDamage = true;
break;
case SPELL_EFFECT_APPLY_AURA:
switch (spellProto->EffectApplyAuraName[i])
{
case SPELL_AURA_PERIODIC_DAMAGE:
case SPELL_AURA_PERIODIC_HEAL:
case SPELL_AURA_PERIODIC_LEECH:
if ( GetSpellDuration(spellProto) )
overTime = GetSpellDuration(spellProto);
break;
// Penalty for additional effects
case SPELL_AURA_DUMMY:
++effects;
break;
case SPELL_AURA_MOD_DECREASE_SPEED:
++effects;
break;
case SPELL_AURA_MOD_CONFUSE:
case SPELL_AURA_MOD_STUN:
case SPELL_AURA_MOD_ROOT:
// -10% per effect
effects += 2;
break;
default:
break;
}
break;
default:
break;
}
}
// Combined Spells with Both Over Time and Direct Damage
if (overTime > 0 && CastingTime > 0 && DirectDamage)
{
// mainly for DoTs which are 3500 here otherwise
uint32 OriginalCastTime = GetSpellCastTime(spellProto);
if (OriginalCastTime > 7000) OriginalCastTime = 7000;
if (OriginalCastTime < 1500) OriginalCastTime = 1500;
// Portion to Over Time
float PtOT = (overTime / 15000.0f) / ((overTime / 15000.0f) + (OriginalCastTime / 3500.0f));
if (damagetype == DOT)
CastingTime = uint32(CastingTime * PtOT);
else if (PtOT < 1.0f)
CastingTime = uint32(CastingTime * (1 - PtOT));
else
CastingTime = 0;
}
// Area Effect Spells receive only half of bonus
if (AreaEffect)
CastingTime /= 2;
// 50% for damage and healing spells for leech spells from damage bonus and 0% from healing
for(int j = 0; j < MAX_EFFECT_INDEX; ++j)
{
if (spellProto->Effect[j] == SPELL_EFFECT_HEALTH_LEECH ||
(spellProto->Effect[j] == SPELL_EFFECT_APPLY_AURA && spellProto->EffectApplyAuraName[j] == SPELL_AURA_PERIODIC_LEECH))
{
CastingTime /= 2;
break;
}
}
// -5% of total per any additional effect (multiplicative)
for (int i = 0; i < effects; ++i)
CastingTime *= 0.95f;
return CastingTime;
}
uint16 GetSpellAuraMaxTicks(SpellEntry const* spellInfo)
{
int32 DotDuration = GetSpellDuration(spellInfo);
if(DotDuration == 0)
return 1;
// 200% limit
if(DotDuration > 30000)
DotDuration = 30000;
for (int j = 0; j < MAX_EFFECT_INDEX; ++j)
{
if (spellInfo->Effect[j] == SPELL_EFFECT_APPLY_AURA && (
spellInfo->EffectApplyAuraName[j] == SPELL_AURA_PERIODIC_DAMAGE ||
spellInfo->EffectApplyAuraName[j] == SPELL_AURA_PERIODIC_HEAL ||
spellInfo->EffectApplyAuraName[j] == SPELL_AURA_PERIODIC_LEECH) )
{
if (spellInfo->EffectAmplitude[j] != 0)
return DotDuration / spellInfo->EffectAmplitude[j];
break;
}
}
return 6;
}
float CalculateDefaultCoefficient(SpellEntry const *spellProto, DamageEffectType const damagetype)
{
// Damage over Time spells bonus calculation
float DotFactor = 1.0f;
if (damagetype == DOT)
{
if (!IsChanneledSpell(spellProto))
DotFactor = GetSpellDuration(spellProto) / 15000.0f;
if (uint16 DotTicks = GetSpellAuraMaxTicks(spellProto))
DotFactor /= DotTicks;
}
// Distribute Damage over multiple effects, reduce by AoE
float coeff = GetSpellCastTimeForBonus(spellProto, damagetype) / 3500.0f;
return coeff * DotFactor;
}
WeaponAttackType GetWeaponAttackType(SpellEntry const *spellInfo)
{
if(!spellInfo)
return BASE_ATTACK;
switch (spellInfo->DmgClass)
{
case SPELL_DAMAGE_CLASS_MELEE:
if (spellInfo->AttributesEx3 & SPELL_ATTR_EX3_REQ_OFFHAND)
return OFF_ATTACK;
else
return BASE_ATTACK;
break;
case SPELL_DAMAGE_CLASS_RANGED:
return RANGED_ATTACK;
break;
default:
// Wands
if (spellInfo->AttributesEx2 & SPELL_ATTR_EX2_AUTOREPEAT_FLAG)
return RANGED_ATTACK;
else
return BASE_ATTACK;
break;
}
}
bool IsPassiveSpell(uint32 spellId)
{
SpellEntry const *spellInfo = sSpellStore.LookupEntry(spellId);
if (!spellInfo)
return false;
return IsPassiveSpell(spellInfo);
}
bool IsPassiveSpell(SpellEntry const *spellInfo)
{
return (spellInfo->Attributes & SPELL_ATTR_PASSIVE) != 0;
}
bool IsNoStackAuraDueToAura(uint32 spellId_1, uint32 spellId_2)
{
SpellEntry const *spellInfo_1 = sSpellStore.LookupEntry(spellId_1);
SpellEntry const *spellInfo_2 = sSpellStore.LookupEntry(spellId_2);
if(!spellInfo_1 || !spellInfo_2) return false;
if(spellInfo_1->Id == spellId_2) return false;
for (int32 i = 0; i < MAX_EFFECT_INDEX; ++i)
{
for (int32 j = 0; j < MAX_EFFECT_INDEX; ++j)
{
if (spellInfo_1->Effect[i] == spellInfo_2->Effect[j]
&& spellInfo_1->EffectApplyAuraName[i] == spellInfo_2->EffectApplyAuraName[j]
&& spellInfo_1->EffectMiscValue[i] == spellInfo_2->EffectMiscValue[j]
&& spellInfo_1->EffectItemType[i] == spellInfo_2->EffectItemType[j]
&& (spellInfo_1->Effect[i] != 0 || spellInfo_1->EffectApplyAuraName[i] != 0 ||
spellInfo_1->EffectMiscValue[i] != 0 || spellInfo_1->EffectItemType[i] != 0))
return true;
}
}
return false;
}
int32 CompareAuraRanks(uint32 spellId_1, uint32 spellId_2)
{
SpellEntry const*spellInfo_1 = sSpellStore.LookupEntry(spellId_1);
SpellEntry const*spellInfo_2 = sSpellStore.LookupEntry(spellId_2);
if(!spellInfo_1 || !spellInfo_2) return 0;
if (spellId_1 == spellId_2) return 0;
for (int32 i = 0; i < MAX_EFFECT_INDEX; ++i)
{
if (spellInfo_1->Effect[i] != 0 && spellInfo_2->Effect[i] != 0 && spellInfo_1->Effect[i] == spellInfo_2->Effect[i])
{
int32 diff = spellInfo_1->EffectBasePoints[i] - spellInfo_2->EffectBasePoints[i];
if (spellInfo_1->CalculateSimpleValue(SpellEffectIndex(i)) < 0 && spellInfo_2->CalculateSimpleValue(SpellEffectIndex(i)) < 0)
return -diff;
else return diff;
}
}
return 0;
}
SpellSpecific GetSpellSpecific(uint32 spellId)
{
SpellEntry const *spellInfo = sSpellStore.LookupEntry(spellId);
if(!spellInfo)
return SPELL_NORMAL;
switch(spellInfo->SpellFamilyName)
{
case SPELLFAMILY_GENERIC:
{
// Food / Drinks (mostly)
if (spellInfo->AuraInterruptFlags & AURA_INTERRUPT_FLAG_NOT_SEATED)
{
bool food = false;
bool drink = false;
for(int i = 0; i < MAX_EFFECT_INDEX; ++i)
{
switch(spellInfo->EffectApplyAuraName[i])
{
// Food
case SPELL_AURA_MOD_REGEN:
case SPELL_AURA_OBS_MOD_HEALTH:
food = true;
break;
// Drink
case SPELL_AURA_MOD_POWER_REGEN:
case SPELL_AURA_OBS_MOD_MANA:
drink = true;
break;
default:
break;
}
}
if (food && drink)
return SPELL_FOOD_AND_DRINK;
else if (food)
return SPELL_FOOD;
else if (drink)
return SPELL_DRINK;
}
else
{
// Well Fed buffs (must be exclusive with Food / Drink replenishment effects, or else Well Fed will cause them to be removed)
// SpellIcon 2560 is Spell 46687, does not have this flag
if ((spellInfo->AttributesEx2 & SPELL_ATTR_EX2_FOOD_BUFF) || spellInfo->SpellIconID == 2560)
return SPELL_WELL_FED;
}
break;
}
case SPELLFAMILY_MAGE:
{
// family flags 18(Molten), 25(Frost/Ice), 28(Mage)
if (spellInfo->SpellFamilyFlags & UI64LIT(0x12040000))
return SPELL_MAGE_ARMOR;
if ((spellInfo->SpellFamilyFlags & UI64LIT(0x1000000)) && spellInfo->EffectApplyAuraName[EFFECT_INDEX_0] == SPELL_AURA_MOD_CONFUSE)
return SPELL_MAGE_POLYMORPH;
break;
}
case SPELLFAMILY_WARRIOR:
{
if (spellInfo->SpellFamilyFlags & UI64LIT(0x00008000010000))
return SPELL_POSITIVE_SHOUT;
break;
}
case SPELLFAMILY_WARLOCK:
{
// only warlock curses have this
if (spellInfo->Dispel == DISPEL_CURSE)
return SPELL_CURSE;
// Warlock (Demon Armor | Demon Skin | Fel Armor)
if (spellInfo->SpellFamilyFlags & UI64LIT(0x2000002000000000) || spellInfo->SpellFamilyFlags2 & 0x00000010)
return SPELL_WARLOCK_ARMOR;
// Unstable Affliction | Immolate
if (spellInfo->SpellFamilyFlags & UI64LIT(0x10000000004))
return SPELL_UA_IMMOLATE;
break;
}
case SPELLFAMILY_PRIEST:
{
// "Well Fed" buff from Blessed Sunfruit, Blessed Sunfruit Juice, Alterac Spring Water
if ((spellInfo->Attributes & SPELL_ATTR_CASTABLE_WHILE_SITTING) &&
(spellInfo->InterruptFlags & SPELL_INTERRUPT_FLAG_AUTOATTACK) &&
(spellInfo->SpellIconID == 52 || spellInfo->SpellIconID == 79))
return SPELL_WELL_FED;
break;
}
case SPELLFAMILY_HUNTER:
{
// only hunter stings have this
if (spellInfo->Dispel == DISPEL_POISON)
return SPELL_STING;
// only hunter aspects have this
if( spellInfo->SpellFamilyFlags & UI64LIT(0x0044000000380000) || spellInfo->SpellFamilyFlags2 & 0x00001010)
return SPELL_ASPECT;
break;
}
case SPELLFAMILY_PALADIN:
{
if (IsSealSpell(spellInfo))
return SPELL_SEAL;
if (spellInfo->SpellFamilyFlags & UI64LIT(0x0000000011010002))
return SPELL_BLESSING;
if (spellInfo->SpellFamilyFlags & UI64LIT(0x0000000000002190))
return SPELL_HAND;
// skip Heart of the Crusader that have also same spell family mask
if ((spellInfo->SpellFamilyFlags & UI64LIT(0x00000820180400)) && (spellInfo->AttributesEx3 & 0x200) && (spellInfo->SpellIconID != 237))
return SPELL_JUDGEMENT;
// only paladin auras have this (for palaldin class family)
if( spellInfo->SpellFamilyFlags2 & 0x00000020 )
return SPELL_AURA;
break;
}
case SPELLFAMILY_SHAMAN:
{
if (IsElementalShield(spellInfo))
return SPELL_ELEMENTAL_SHIELD;
break;
}
case SPELLFAMILY_POTION:
return sSpellMgr.GetSpellElixirSpecific(spellInfo->Id);
case SPELLFAMILY_DEATHKNIGHT:
if (spellInfo->Category == 47)
return SPELL_PRESENCE;
break;
}
// Tracking spells (exclude Well Fed, some other always allowed cases)
if ((IsSpellHaveAura(spellInfo, SPELL_AURA_TRACK_CREATURES) ||
IsSpellHaveAura(spellInfo, SPELL_AURA_TRACK_RESOURCES) ||
IsSpellHaveAura(spellInfo, SPELL_AURA_TRACK_STEALTHED)) &&
((spellInfo->AttributesEx & SPELL_ATTR_EX_UNK17) || (spellInfo->AttributesEx6 & SPELL_ATTR_EX6_UNK12)))
return SPELL_TRACKER;
// elixirs can have different families, but potion most ofc.
if (SpellSpecific sp = sSpellMgr.GetSpellElixirSpecific(spellInfo->Id))
return sp;
return SPELL_NORMAL;
}
// target not allow have more one spell specific from same caster
bool IsSingleFromSpellSpecificPerTargetPerCaster(SpellSpecific spellSpec1,SpellSpecific spellSpec2)
{
switch(spellSpec1)
{
case SPELL_BLESSING:
case SPELL_AURA:
case SPELL_STING:
case SPELL_CURSE:
case SPELL_ASPECT:
case SPELL_POSITIVE_SHOUT:
case SPELL_JUDGEMENT:
case SPELL_HAND:
case SPELL_UA_IMMOLATE:
return spellSpec1==spellSpec2;
default:
return false;
}
}
// target not allow have more one ranks from spell from spell specific per target
bool IsSingleFromSpellSpecificSpellRanksPerTarget(SpellSpecific spellSpec1,SpellSpecific spellSpec2)
{
switch(spellSpec1)
{
case SPELL_BLESSING:
case SPELL_AURA:
case SPELL_CURSE:
case SPELL_ASPECT:
case SPELL_HAND:
return spellSpec1==spellSpec2;
default:
return false;
}
}
// target not allow have more one spell specific per target from any caster
bool IsSingleFromSpellSpecificPerTarget(SpellSpecific spellSpec1,SpellSpecific spellSpec2)
{
switch(spellSpec1)
{
case SPELL_SEAL:
case SPELL_TRACKER:
case SPELL_WARLOCK_ARMOR:
case SPELL_MAGE_ARMOR:
case SPELL_ELEMENTAL_SHIELD:
case SPELL_MAGE_POLYMORPH:
case SPELL_PRESENCE:
case SPELL_WELL_FED:
return spellSpec1==spellSpec2;
case SPELL_BATTLE_ELIXIR:
return spellSpec2==SPELL_BATTLE_ELIXIR
|| spellSpec2==SPELL_FLASK_ELIXIR;
case SPELL_GUARDIAN_ELIXIR:
return spellSpec2==SPELL_GUARDIAN_ELIXIR
|| spellSpec2==SPELL_FLASK_ELIXIR;
case SPELL_FLASK_ELIXIR:
return spellSpec2==SPELL_BATTLE_ELIXIR
|| spellSpec2==SPELL_GUARDIAN_ELIXIR
|| spellSpec2==SPELL_FLASK_ELIXIR;
case SPELL_FOOD:
return spellSpec2==SPELL_FOOD
|| spellSpec2==SPELL_FOOD_AND_DRINK;
case SPELL_DRINK:
return spellSpec2==SPELL_DRINK
|| spellSpec2==SPELL_FOOD_AND_DRINK;
case SPELL_FOOD_AND_DRINK:
return spellSpec2==SPELL_FOOD
|| spellSpec2==SPELL_DRINK
|| spellSpec2==SPELL_FOOD_AND_DRINK;
default:
return false;
}
}
bool IsPositiveTarget(uint32 targetA, uint32 targetB)
{
switch(targetA)
{
// non-positive targets
case TARGET_CHAIN_DAMAGE:
case TARGET_ALL_ENEMY_IN_AREA:
case TARGET_ALL_ENEMY_IN_AREA_INSTANT:
case TARGET_IN_FRONT_OF_CASTER:
case TARGET_ALL_ENEMY_IN_AREA_CHANNELED:
case TARGET_CURRENT_ENEMY_COORDINATES:
case TARGET_SINGLE_ENEMY:
case TARGET_IN_FRONT_OF_CASTER_30:
return false;
// positive or dependent
case TARGET_CASTER_COORDINATES:
return (targetB == TARGET_ALL_PARTY || targetB == TARGET_ALL_FRIENDLY_UNITS_AROUND_CASTER);
default:
break;
}
if (targetB)
return IsPositiveTarget(targetB, 0);
return true;
}
bool IsExplicitPositiveTarget(uint32 targetA)
{
// positive targets that in target selection code expect target in m_targers, so not that auto-select target by spell data by m_caster and etc
switch(targetA)
{
case TARGET_SINGLE_FRIEND:
case TARGET_SINGLE_PARTY:
case TARGET_CHAIN_HEAL:
case TARGET_SINGLE_FRIEND_2:
case TARGET_AREAEFFECT_PARTY_AND_CLASS:
return true;
default:
break;
}
return false;
}
bool IsExplicitNegativeTarget(uint32 targetA)
{
// non-positive targets that in target selection code expect target in m_targers, so not that auto-select target by spell data by m_caster and etc
switch(targetA)
{
case TARGET_CHAIN_DAMAGE:
case TARGET_CURRENT_ENEMY_COORDINATES:
case TARGET_SINGLE_ENEMY:
return true;
default:
break;
}
return false;
}
bool IsPositiveEffect(uint32 spellId, SpellEffectIndex effIndex)
{
SpellEntry const *spellproto = sSpellStore.LookupEntry(spellId);
if (!spellproto)
return false;
switch(spellproto->Effect[effIndex])
{
case SPELL_EFFECT_DUMMY:
// some explicitly required dummy effect sets
switch(spellId)
{
case 28441: // AB Effect 000
return false;
case 49634: // Sergeant's Flare
case 54530: // Opening
return true;
default:
break;
}
break;
// always positive effects (check before target checks that provided non-positive result in some case for positive effects)
case SPELL_EFFECT_HEAL:
case SPELL_EFFECT_LEARN_SPELL:
case SPELL_EFFECT_SKILL_STEP:
case SPELL_EFFECT_HEAL_PCT:
case SPELL_EFFECT_ENERGIZE_PCT:
return true;
// non-positive aura use
case SPELL_EFFECT_APPLY_AURA:
case SPELL_EFFECT_APPLY_AREA_AURA_FRIEND:
{
switch(spellproto->EffectApplyAuraName[effIndex])
{
case SPELL_AURA_DUMMY:
{
// dummy aura can be positive or negative dependent from casted spell
switch(spellproto->Id)
{
case 13139: // net-o-matic special effect
case 23445: // evil twin
case 35679: // Protectorate Demolitionist
case 38637: // Nether Exhaustion (red)
case 38638: // Nether Exhaustion (green)
case 38639: // Nether Exhaustion (blue)
case 11196: // Recently Bandaged
case 44689: // Relay Race Accept Hidden Debuff - DND
case 58600: // Restricted Flight Area
return false;
// some spells have unclear target modes for selection, so just make effect positive
case 27184:
case 27190:
case 27191:
case 27201:
case 27202:
case 27203:
return true;
default:
break;
}
} break;
case SPELL_AURA_MOD_DAMAGE_DONE: // dependent from base point sign (negative -> negative)
case SPELL_AURA_MOD_STAT:
case SPELL_AURA_MOD_SKILL:
case SPELL_AURA_MOD_DODGE_PERCENT:
case SPELL_AURA_MOD_HEALING_PCT:
case SPELL_AURA_MOD_HEALING_DONE:
if(spellproto->CalculateSimpleValue(effIndex) < 0)
return false;
break;
case SPELL_AURA_MOD_DAMAGE_TAKEN: // dependent from bas point sign (positive -> negative)
if(spellproto->CalculateSimpleValue(effIndex) > 0)
return false;
break;
case SPELL_AURA_MOD_SPELL_CRIT_CHANCE:
case SPELL_AURA_MOD_INCREASE_HEALTH_PERCENT:
case SPELL_AURA_MOD_DAMAGE_PERCENT_DONE:
if(spellproto->CalculateSimpleValue(effIndex) > 0)
return true; // some expected positive spells have SPELL_ATTR_EX_NEGATIVE or unclear target modes
break;
case SPELL_AURA_ADD_TARGET_TRIGGER:
return true;
case SPELL_AURA_PERIODIC_TRIGGER_SPELL:
if (spellId != spellproto->EffectTriggerSpell[effIndex])
{
uint32 spellTriggeredId = spellproto->EffectTriggerSpell[effIndex];
SpellEntry const *spellTriggeredProto = sSpellStore.LookupEntry(spellTriggeredId);
if (spellTriggeredProto)
{
// non-positive targets of main spell return early
for(int i = 0; i < MAX_EFFECT_INDEX; ++i)
{
// if non-positive trigger cast targeted to positive target this main cast is non-positive
// this will place this spell auras as debuffs
if (IsPositiveTarget(spellTriggeredProto->EffectImplicitTargetA[effIndex],spellTriggeredProto->EffectImplicitTargetB[effIndex]) &&
!IsPositiveEffect(spellTriggeredId,SpellEffectIndex(i)))
return false;
}
}
}
break;
case SPELL_AURA_PROC_TRIGGER_SPELL:
// many positive auras have negative triggered spells at damage for example and this not make it negative (it can be canceled for example)
break;
case SPELL_AURA_MOD_STUN: //have positive and negative spells, we can't sort its correctly at this moment.
if (effIndex == EFFECT_INDEX_0 && spellproto->Effect[EFFECT_INDEX_1] == 0 && spellproto->Effect[EFFECT_INDEX_2] == 0)
return false; // but all single stun aura spells is negative
// Petrification
if(spellproto->Id == 17624)
return false;
break;
case SPELL_AURA_MOD_PACIFY_SILENCE:
switch(spellproto->Id)
{
case 24740: // Wisp Costume
case 47585: // Dispersion
return true;
default: break;
}
return false;
case SPELL_AURA_MOD_ROOT:
case SPELL_AURA_MOD_SILENCE:
case SPELL_AURA_GHOST:
case SPELL_AURA_PERIODIC_LEECH:
case SPELL_AURA_MOD_STALKED:
case SPELL_AURA_PERIODIC_DAMAGE_PERCENT:
return false;
case SPELL_AURA_PERIODIC_DAMAGE: // used in positive spells also.
// part of negative spell if casted at self (prevent cancel)
if (spellproto->EffectImplicitTargetA[effIndex] == TARGET_SELF ||
spellproto->EffectImplicitTargetA[effIndex] == TARGET_SELF2)
return false;
break;
case SPELL_AURA_MOD_DECREASE_SPEED: // used in positive spells also
// part of positive spell if casted at self
if ((spellproto->EffectImplicitTargetA[effIndex] == TARGET_SELF ||
spellproto->EffectImplicitTargetA[effIndex] == TARGET_SELF2) &&
spellproto->SpellFamilyName == SPELLFAMILY_GENERIC)
return false;
// but not this if this first effect (don't found better check)
if (spellproto->Attributes & 0x4000000 && effIndex == EFFECT_INDEX_0)
return false;
break;
case SPELL_AURA_TRANSFORM:
// some spells negative
switch(spellproto->Id)
{
case 36897: // Transporter Malfunction (race mutation to horde)
case 36899: // Transporter Malfunction (race mutation to alliance)
return false;
}
break;
case SPELL_AURA_MOD_SCALE:
// some spells negative
switch(spellproto->Id)
{
case 802: // Mutate Bug, wrongly negative by target modes
return true;
case 36900: // Soul Split: Evil!
case 36901: // Soul Split: Good
case 36893: // Transporter Malfunction (decrease size case)
case 36895: // Transporter Malfunction (increase size case)
return false;
}
break;
case SPELL_AURA_MECHANIC_IMMUNITY:
{
// non-positive immunities
switch(spellproto->EffectMiscValue[effIndex])
{
case MECHANIC_BANDAGE:
case MECHANIC_SHIELD:
case MECHANIC_MOUNT:
case MECHANIC_INVULNERABILITY:
return false;
default:
break;
}
} break;
case SPELL_AURA_ADD_FLAT_MODIFIER: // mods
case SPELL_AURA_ADD_PCT_MODIFIER:
{
// non-positive mods
switch(spellproto->EffectMiscValue[effIndex])
{
case SPELLMOD_COST: // dependent from bas point sign (negative -> positive)
if(spellproto->CalculateSimpleValue(effIndex) > 0)
return false;
break;
default:
break;
}
} break;
case SPELL_AURA_FORCE_REACTION:
if(spellproto->Id==42792) // Recently Dropped Flag (prevent cancel)
return false;
break;
default:
break;
}
break;
}
default:
break;
}
// non-positive targets
if(!IsPositiveTarget(spellproto->EffectImplicitTargetA[effIndex],spellproto->EffectImplicitTargetB[effIndex]))
return false;
// AttributesEx check
if(spellproto->AttributesEx & SPELL_ATTR_EX_NEGATIVE)
return false;
// ok, positive
return true;
}
bool IsPositiveSpell(uint32 spellId)
{
SpellEntry const *spellproto = sSpellStore.LookupEntry(spellId);
if (!spellproto)
return false;
// spells with at least one negative effect are considered negative
// some self-applied spells have negative effects but in self casting case negative check ignored.
for (int i = 0; i < MAX_EFFECT_INDEX; ++i)
if (!IsPositiveEffect(spellId, SpellEffectIndex(i)))
return false;
return true;
}
bool IsSingleTargetSpell(SpellEntry const *spellInfo)
{
// all other single target spells have if it has AttributesEx5
if ( spellInfo->AttributesEx5 & SPELL_ATTR_EX5_SINGLE_TARGET_SPELL )
return true;
// TODO - need found Judgements rule
switch(GetSpellSpecific(spellInfo->Id))
{
case SPELL_JUDGEMENT:
return true;
default:
break;
}
// single target triggered spell.
// Not real client side single target spell, but it' not triggered until prev. aura expired.
// This is allow store it in single target spells list for caster for spell proc checking
if(spellInfo->Id==38324) // Regeneration (triggered by 38299 (HoTs on Heals))
return true;
return false;
}
bool IsSingleTargetSpells(SpellEntry const *spellInfo1, SpellEntry const *spellInfo2)
{
// TODO - need better check
// Equal icon and spellfamily
if( spellInfo1->SpellFamilyName == spellInfo2->SpellFamilyName &&
spellInfo1->SpellIconID == spellInfo2->SpellIconID )
return true;
// TODO - need found Judgements rule
SpellSpecific spec1 = GetSpellSpecific(spellInfo1->Id);
// spell with single target specific types
switch(spec1)
{
case SPELL_JUDGEMENT:
case SPELL_MAGE_POLYMORPH:
if(GetSpellSpecific(spellInfo2->Id) == spec1)
return true;
break;
default:
break;
}
return false;
}
SpellCastResult GetErrorAtShapeshiftedCast (SpellEntry const *spellInfo, uint32 form)
{
// talents that learn spells can have stance requirements that need ignore
// (this requirement only for client-side stance show in talent description)
if( GetTalentSpellCost(spellInfo->Id) > 0 &&
(spellInfo->Effect[EFFECT_INDEX_0] == SPELL_EFFECT_LEARN_SPELL || spellInfo->Effect[EFFECT_INDEX_1] == SPELL_EFFECT_LEARN_SPELL || spellInfo->Effect[EFFECT_INDEX_2] == SPELL_EFFECT_LEARN_SPELL) )
return SPELL_CAST_OK;
uint32 stanceMask = (form ? 1 << (form - 1) : 0);
if (stanceMask & spellInfo->StancesNot) // can explicitly not be casted in this stance
return SPELL_FAILED_NOT_SHAPESHIFT;
if (stanceMask & spellInfo->Stances) // can explicitly be casted in this stance
return SPELL_CAST_OK;
bool actAsShifted = false;
if (form > 0)
{
SpellShapeshiftFormEntry const *shapeInfo = sSpellShapeshiftFormStore.LookupEntry(form);
if (!shapeInfo)
{
sLog.outError("GetErrorAtShapeshiftedCast: unknown shapeshift %u", form);
return SPELL_CAST_OK;
}
actAsShifted = !(shapeInfo->flags1 & 1); // shapeshift acts as normal form for spells
}
if(actAsShifted)
{
if (spellInfo->Attributes & SPELL_ATTR_NOT_SHAPESHIFT) // not while shapeshifted
return SPELL_FAILED_NOT_SHAPESHIFT;
else if (spellInfo->Stances != 0) // needs other shapeshift
return SPELL_FAILED_ONLY_SHAPESHIFT;
}
else
{
// needs shapeshift
if(!(spellInfo->AttributesEx2 & SPELL_ATTR_EX2_NOT_NEED_SHAPESHIFT) && spellInfo->Stances != 0)
return SPELL_FAILED_ONLY_SHAPESHIFT;
}
return SPELL_CAST_OK;
}
void SpellMgr::LoadSpellTargetPositions()
{
mSpellTargetPositions.clear(); // need for reload case
uint32 count = 0;
// 0 1 2 3 4 5
QueryResult *result = WorldDatabase.Query("SELECT id, target_map, target_position_x, target_position_y, target_position_z, target_orientation FROM spell_target_position");
if (!result)
{
barGoLink bar( 1 );
bar.step();
sLog.outString();
sLog.outString( ">> Loaded %u spell target coordinates", count );
return;
}
barGoLink bar((int)result->GetRowCount());
do
{
Field *fields = result->Fetch();
bar.step();
uint32 Spell_ID = fields[0].GetUInt32();
SpellTargetPosition st;
st.target_mapId = fields[1].GetUInt32();
st.target_X = fields[2].GetFloat();
st.target_Y = fields[3].GetFloat();
st.target_Z = fields[4].GetFloat();
st.target_Orientation = fields[5].GetFloat();
MapEntry const* mapEntry = sMapStore.LookupEntry(st.target_mapId);
if (!mapEntry)
{
sLog.outErrorDb("Spell (ID:%u) target map (ID: %u) does not exist in `Map.dbc`.",Spell_ID,st.target_mapId);
continue;
}
if (st.target_X==0 && st.target_Y==0 && st.target_Z==0)
{