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CypherCore/Source/Game/Spells/Spell.cs
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/*
* Copyright (C) 2012-2020 CypherCore <http://github.com/CypherCore>
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
using Framework.Constants;
using Framework.Dynamic;
using Game.AI;
using Game.BattleFields;
using Game.BattleGrounds;
using Game.Conditions;
using Game.DataStorage;
using Game.Entities;
using Game.Loots;
using Game.Maps;
using Game.Movement;
using Game.Networking.Packets;
using Game.Scripting;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
namespace Game.Spells
{
public partial class Spell : IDisposable
{
public Spell(WorldObject caster, SpellInfo info, TriggerCastFlags triggerFlags, ObjectGuid originalCasterGUID = default, ObjectGuid originalCastId = default)
{
m_spellInfo = info;
m_caster = (info.HasAttribute(SpellAttr6.CastByCharmer) && caster.GetCharmerOrOwner() != null ? caster.GetCharmerOrOwner() : caster);
m_spellValue = new SpellValue(m_spellInfo, caster);
m_castItemLevel = -1;
m_castId = ObjectGuid.Create(HighGuid.Cast, SpellCastSource.Normal, m_caster.GetMapId(), m_spellInfo.Id, m_caster.GetMap().GenerateLowGuid(HighGuid.Cast));
m_originalCastId = originalCastId;
m_SpellVisual.SpellXSpellVisualID = caster.GetCastSpellXSpellVisualId(m_spellInfo);
m_customError = SpellCustomErrors.None;
m_fromClient = false;
m_needComboPoints = m_spellInfo.NeedsComboPoints();
// Get data for type of attack
m_attackType = info.GetAttackType();
m_spellSchoolMask = m_spellInfo.GetSchoolMask(); // Can be override for some spell (wand shoot for example)
Player playerCaster = m_caster.ToPlayer();
if (playerCaster != null)
{
// wand case
if (m_attackType == WeaponAttackType.RangedAttack)
{
if ((playerCaster.GetClassMask() & (uint)Class.ClassMaskWandUsers) != 0)
{
Item pItem = playerCaster.GetWeaponForAttack(WeaponAttackType.RangedAttack);
if (pItem != null)
m_spellSchoolMask = (SpellSchoolMask)(1 << (int)pItem.GetTemplate().GetDamageType());
}
}
}
Player modOwner = caster.GetSpellModOwner();
if (modOwner != null)
modOwner.ApplySpellMod(info, SpellModOp.Doses, ref m_spellValue.AuraStackAmount, this);
if (!originalCasterGUID.IsEmpty())
m_originalCasterGUID = originalCasterGUID;
else
m_originalCasterGUID = m_caster.GetGUID();
if (m_originalCasterGUID == m_caster.GetGUID())
m_originalCaster = m_caster.ToUnit();
else
{
m_originalCaster = Global.ObjAccessor.GetUnit(m_caster, m_originalCasterGUID);
if (m_originalCaster != null && !m_originalCaster.IsInWorld)
m_originalCaster = null;
}
m_spellState = SpellState.None;
_triggeredCastFlags = triggerFlags;
if (m_spellInfo.HasAttribute(SpellAttr4.CanCastWhileCasting))
_triggeredCastFlags = _triggeredCastFlags | TriggerCastFlags.IgnoreCastInProgress | TriggerCastFlags.CastDirectly;
effectHandleMode = SpellEffectHandleMode.Launch;
//Auto Shot & Shoot (wand)
m_autoRepeat = m_spellInfo.IsAutoRepeatRangedSpell();
// Determine if spell can be reflected back to the caster
// Patch 1.2 notes: Spell Reflection no longer reflects abilities
m_canReflect = caster.IsUnit() && m_spellInfo.DmgClass == SpellDmgClass.Magic && !m_spellInfo.HasAttribute(SpellAttr0.Ability)
&& !m_spellInfo.HasAttribute(SpellAttr1.CantBeReflected) && !m_spellInfo.HasAttribute(SpellAttr0.UnaffectedByInvulnerability)
&& !m_spellInfo.IsPassive();
CleanupTargetList();
for (var i = 0; i < SpellConst.MaxEffects; ++i)
m_destTargets[i] = new SpellDestination(m_caster);
//not sure needed.
m_targets = new SpellCastTargets();
m_appliedMods = new List<Aura>();
}
public virtual void Dispose()
{
// unload scripts
for (var i = 0; i < m_loadedScripts.Count; ++i)
m_loadedScripts[i]._Unload();
if (m_referencedFromCurrentSpell && m_selfContainer && m_selfContainer == this)
{
// Clean the reference to avoid later crash.
// If this error is repeating, we may have to add an ASSERT to better track down how we get into this case.
Log.outError(LogFilter.Spells, "SPELL: deleting spell for spell ID {0}. However, spell still referenced.", m_spellInfo.Id);
m_selfContainer = null;
}
if (m_caster && m_caster.GetTypeId() == TypeId.Player)
Cypher.Assert(m_caster.ToPlayer().m_spellModTakingSpell != this);
}
void InitExplicitTargets(SpellCastTargets targets)
{
m_targets = targets;
m_targets.SetOrigUnitTarget(m_targets.GetUnitTarget());
// this function tries to correct spell explicit targets for spell
// client doesn't send explicit targets correctly sometimes - we need to fix such spells serverside
// this also makes sure that we correctly send explicit targets to client (removes redundant data)
SpellCastTargetFlags neededTargets = m_spellInfo.GetExplicitTargetMask();
WorldObject target = m_targets.GetObjectTarget();
if (target != null)
{
// check if object target is valid with needed target flags
// for unit case allow corpse target mask because player with not released corpse is a unit target
if ((target.ToUnit() && !neededTargets.HasAnyFlag(SpellCastTargetFlags.UnitMask | SpellCastTargetFlags.CorpseMask))
|| (target.IsTypeId(TypeId.GameObject) && !neededTargets.HasFlag(SpellCastTargetFlags.GameobjectMask))
|| (target.IsTypeId(TypeId.Corpse) && !neededTargets.HasFlag(SpellCastTargetFlags.CorpseMask)))
m_targets.RemoveObjectTarget();
}
else
{
// try to select correct unit target if not provided by client or by serverside cast
if (neededTargets.HasAnyFlag(SpellCastTargetFlags.UnitMask))
{
Unit unit = null;
// try to use player selection as a target
Player playerCaster = m_caster.ToPlayer();
if (playerCaster != null)
{
// selection has to be found and to be valid target for the spell
Unit selectedUnit = Global.ObjAccessor.GetUnit(m_caster, playerCaster.GetTarget());
if (selectedUnit != null)
if (m_spellInfo.CheckExplicitTarget(m_caster, selectedUnit) == SpellCastResult.SpellCastOk)
unit = selectedUnit;
}
// try to use attacked unit as a target
else if (m_caster.IsTypeId(TypeId.Unit) && neededTargets.HasAnyFlag(SpellCastTargetFlags.UnitEnemy | SpellCastTargetFlags.Unit))
unit = m_caster.ToUnit().GetVictim();
// didn't find anything - let's use self as target
if (unit == null && neededTargets.HasAnyFlag(SpellCastTargetFlags.UnitRaid | SpellCastTargetFlags.UnitParty | SpellCastTargetFlags.UnitAlly))
unit = m_caster.ToUnit();
m_targets.SetUnitTarget(unit);
}
}
// check if spell needs dst target
if (neededTargets.HasFlag(SpellCastTargetFlags.DestLocation))
{
// and target isn't set
if (!m_targets.HasDst())
{
// try to use unit target if provided
WorldObject targett = targets.GetObjectTarget();
if (targett != null)
m_targets.SetDst(targett);
// or use self if not available
else
m_targets.SetDst(m_caster);
}
}
else
m_targets.RemoveDst();
if (neededTargets.HasFlag(SpellCastTargetFlags.SourceLocation))
{
if (!targets.HasSrc())
m_targets.SetSrc(m_caster);
}
else
m_targets.RemoveSrc();
}
void SelectExplicitTargets()
{
// here go all explicit target changes made to explicit targets after spell prepare phase is finished
Unit target = m_targets.GetUnitTarget();
if (target != null)
{
// check for explicit target redirection, for Grounding Totem for example
if (m_spellInfo.GetExplicitTargetMask().HasAnyFlag(SpellCastTargetFlags.UnitEnemy)
|| (m_spellInfo.GetExplicitTargetMask().HasAnyFlag(SpellCastTargetFlags.Unit) && !m_caster.IsFriendlyTo(target)))
{
Unit redirect = null;
switch (m_spellInfo.DmgClass)
{
case SpellDmgClass.Magic:
redirect = m_caster.GetMagicHitRedirectTarget(target, m_spellInfo);
break;
case SpellDmgClass.Melee:
case SpellDmgClass.Ranged:
// should gameobjects cast damagetype melee/ranged spells this needs to be changed
redirect = m_caster.ToUnit().GetMeleeHitRedirectTarget(target, m_spellInfo);
break;
default:
break;
}
if (redirect != null && (redirect != target))
m_targets.SetUnitTarget(redirect);
}
}
}
public void SelectSpellTargets()
{
// select targets for cast phase
SelectExplicitTargets();
uint processedAreaEffectsMask = 0;
foreach (var spellEffectInfo in m_spellInfo.GetEffects())
{
// not call for empty effect.
// Also some spells use not used effect targets for store targets for dummy effect in triggered spells
if (!spellEffectInfo.IsEffect())
continue;
// set expected type of implicit targets to be sent to client
SpellCastTargetFlags implicitTargetMask = SpellInfo.GetTargetFlagMask(spellEffectInfo.TargetA.GetObjectType()) | SpellInfo.GetTargetFlagMask(spellEffectInfo.TargetB.GetObjectType());
if (Convert.ToBoolean(implicitTargetMask & SpellCastTargetFlags.Unit))
m_targets.SetTargetFlag(SpellCastTargetFlags.Unit);
if (Convert.ToBoolean(implicitTargetMask & (SpellCastTargetFlags.Gameobject | SpellCastTargetFlags.GameobjectItem)))
m_targets.SetTargetFlag(SpellCastTargetFlags.Gameobject);
SelectEffectImplicitTargets(spellEffectInfo, spellEffectInfo.TargetA, ref processedAreaEffectsMask);
SelectEffectImplicitTargets(spellEffectInfo, spellEffectInfo.TargetB, ref processedAreaEffectsMask);
// Select targets of effect based on effect type
// those are used when no valid target could be added for spell effect based on spell target type
// some spell effects use explicit target as a default target added to target map (like SPELL_EFFECT_LEARN_SPELL)
// some spell effects add target to target map only when target type specified (like SPELL_EFFECT_WEAPON)
// some spell effects don't add anything to target map (confirmed with sniffs) (like SPELL_EFFECT_DESTROY_ALL_TOTEMS)
SelectEffectTypeImplicitTargets(spellEffectInfo);
if (m_targets.HasDst())
AddDestTarget(m_targets.GetDst(), spellEffectInfo.EffectIndex);
if (m_spellInfo.IsChanneled())
{
// maybe do this for all spells?
if (focusObject == null && m_UniqueTargetInfo.Empty() && m_UniqueGOTargetInfo.Empty() && m_UniqueItemInfo.Empty() && !m_targets.HasDst())
{
SendCastResult(SpellCastResult.BadImplicitTargets);
Finish(false);
return;
}
uint mask = (1u << (int)spellEffectInfo.EffectIndex);
foreach (var ihit in m_UniqueTargetInfo)
{
if (Convert.ToBoolean(ihit.EffectMask & mask))
{
m_channelTargetEffectMask |= mask;
break;
}
}
}
}
ulong dstDelay = CalculateDelayMomentForDst(m_spellInfo.LaunchDelay);
if (dstDelay != 0)
m_delayMoment = dstDelay;
}
ulong CalculateDelayMomentForDst(float launchDelay)
{
if (m_targets.HasDst())
{
if (m_targets.HasTraj())
{
float speed = m_targets.GetSpeedXY();
if (speed > 0.0f)
return (ulong)(Math.Floor((m_targets.GetDist2d() / speed + launchDelay) * 1000.0f));
}
else if (m_spellInfo.HasAttribute(SpellAttr9.SpecialDelayCalculation))
return (ulong)(Math.Floor((m_spellInfo.Speed + launchDelay) * 1000.0f));
else if (m_spellInfo.Speed > 0.0f)
{
// We should not subtract caster size from dist calculation (fixes execution time desync with animation on client, eg. Malleable Goo cast by PP)
float dist = m_caster.GetExactDist(m_targets.GetDstPos());
return (ulong)(Math.Floor((dist / m_spellInfo.Speed + launchDelay) * 1000.0f));
}
return (ulong)Math.Floor(launchDelay * 1000.0f);
}
return 0;
}
public void RecalculateDelayMomentForDst()
{
m_delayMoment = CalculateDelayMomentForDst(0.0f);
m_caster.m_Events.ModifyEventTime(_spellEvent, GetDelayStart() + m_delayMoment);
}
void SelectEffectImplicitTargets(SpellEffectInfo spellEffectInfo, SpellImplicitTargetInfo targetType, ref uint processedEffectMask)
{
if (targetType.GetTarget() == 0)
return;
uint effectMask = (1u << (int)spellEffectInfo.EffectIndex);
// set the same target list for all effects
// some spells appear to need this, however this requires more research
switch (targetType.GetSelectionCategory())
{
case SpellTargetSelectionCategories.Nearby:
case SpellTargetSelectionCategories.Cone:
case SpellTargetSelectionCategories.Area:
case SpellTargetSelectionCategories.Line:
{
// targets for effect already selected
if (Convert.ToBoolean(effectMask & processedEffectMask))
return;
var effects = GetSpellInfo().GetEffects();
// choose which targets we can select at once
for (int j = (int)spellEffectInfo.EffectIndex + 1; j < effects.Count; ++j)
{
if (effects[j].IsEffect() &&
spellEffectInfo.TargetA.GetTarget() == effects[j].TargetA.GetTarget() &&
spellEffectInfo.TargetB.GetTarget() == effects[j].TargetB.GetTarget() &&
spellEffectInfo.ImplicitTargetConditions == effects[j].ImplicitTargetConditions &&
spellEffectInfo.CalcRadius(m_caster) == effects[j].CalcRadius(m_caster) &&
CheckScriptEffectImplicitTargets(spellEffectInfo.EffectIndex, (uint)j))
{
effectMask |= 1u << j;
}
}
processedEffectMask |= effectMask;
break;
}
default:
break;
}
switch (targetType.GetSelectionCategory())
{
case SpellTargetSelectionCategories.Channel:
SelectImplicitChannelTargets(spellEffectInfo, targetType);
break;
case SpellTargetSelectionCategories.Nearby:
SelectImplicitNearbyTargets(spellEffectInfo, targetType, effectMask);
break;
case SpellTargetSelectionCategories.Cone:
SelectImplicitConeTargets(spellEffectInfo, targetType, effectMask);
break;
case SpellTargetSelectionCategories.Area:
SelectImplicitAreaTargets(spellEffectInfo, targetType, effectMask);
break;
case SpellTargetSelectionCategories.Traj:
// just in case there is no dest, explanation in SelectImplicitDestDestTargets
CheckDst();
SelectImplicitTrajTargets(spellEffectInfo, targetType);
break;
case SpellTargetSelectionCategories.Line:
SelectImplicitLineTargets(spellEffectInfo, targetType, effectMask);
break;
case SpellTargetSelectionCategories.Default:
switch (targetType.GetObjectType())
{
case SpellTargetObjectTypes.Src:
switch (targetType.GetReferenceType())
{
case SpellTargetReferenceTypes.Caster:
m_targets.SetSrc(m_caster);
break;
default:
Cypher.Assert(false, "Spell.SelectEffectImplicitTargets: received not implemented select target reference type for TARGET_TYPE_OBJECT_SRC");
break;
}
break;
case SpellTargetObjectTypes.Dest:
switch (targetType.GetReferenceType())
{
case SpellTargetReferenceTypes.Caster:
SelectImplicitCasterDestTargets(spellEffectInfo, targetType);
break;
case SpellTargetReferenceTypes.Target:
SelectImplicitTargetDestTargets(spellEffectInfo, targetType);
break;
case SpellTargetReferenceTypes.Dest:
SelectImplicitDestDestTargets(spellEffectInfo, targetType);
break;
default:
Cypher.Assert(false, "Spell.SelectEffectImplicitTargets: received not implemented select target reference type for TARGET_TYPE_OBJECT_DEST");
break;
}
break;
default:
switch (targetType.GetReferenceType())
{
case SpellTargetReferenceTypes.Caster:
SelectImplicitCasterObjectTargets(spellEffectInfo, targetType);
break;
case SpellTargetReferenceTypes.Target:
SelectImplicitTargetObjectTargets(spellEffectInfo, targetType);
break;
default:
Cypher.Assert(false, "Spell.SelectEffectImplicitTargets: received not implemented select target reference type for TARGET_TYPE_OBJECT");
break;
}
break;
}
break;
case SpellTargetSelectionCategories.Nyi:
Log.outDebug(LogFilter.Spells, "SPELL: target type {0}, found in spellID {1}, effect {2} is not implemented yet!", m_spellInfo.Id, spellEffectInfo.EffectIndex, targetType.GetTarget());
break;
default:
Cypher.Assert(false, "Spell.SelectEffectImplicitTargets: received not implemented select target category");
break;
}
}
void SelectImplicitChannelTargets(SpellEffectInfo spellEffectInfo, SpellImplicitTargetInfo targetType)
{
if (targetType.GetReferenceType() != SpellTargetReferenceTypes.Caster)
{
Cypher.Assert(false, "Spell.SelectImplicitChannelTargets: received not implemented target reference type");
return;
}
Spell channeledSpell = m_originalCaster.GetCurrentSpell(CurrentSpellTypes.Channeled);
if (channeledSpell == null)
{
Log.outDebug(LogFilter.Spells, "Spell.SelectImplicitChannelTargets: cannot find channel spell for spell ID {0}, effect {1}", m_spellInfo.Id, spellEffectInfo.EffectIndex);
return;
}
switch (targetType.GetTarget())
{
case Targets.UnitChannelTarget:
{
foreach (ObjectGuid channelTarget in m_originalCaster.m_unitData.ChannelObjects)
{
WorldObject target = Global.ObjAccessor.GetUnit(m_caster, channelTarget);
CallScriptObjectTargetSelectHandlers(ref target, spellEffectInfo.EffectIndex, targetType);
// unit target may be no longer avalible - teleported out of map for example
Unit unitTarget = target ? target.ToUnit() : null;
if (unitTarget)
AddUnitTarget(unitTarget, 1u << (int)spellEffectInfo.EffectIndex);
else
Log.outDebug(LogFilter.Spells, "SPELL: cannot find channel spell target for spell ID {0}, effect {1}", m_spellInfo.Id, spellEffectInfo.EffectIndex);
}
break;
}
case Targets.DestChannelTarget:
{
if (channeledSpell.m_targets.HasDst())
m_targets.SetDst(channeledSpell.m_targets);
else
{
List<ObjectGuid> channelObjects = m_originalCaster.m_unitData.ChannelObjects;
WorldObject target = !channelObjects.Empty() ? Global.ObjAccessor.GetWorldObject(m_caster, channelObjects[0]) : null;
if (target != null)
{
CallScriptObjectTargetSelectHandlers(ref target, spellEffectInfo.EffectIndex, targetType);
if (target)
{
SpellDestination dest = new(target);
CallScriptDestinationTargetSelectHandlers(ref dest, spellEffectInfo.EffectIndex, targetType);
m_targets.SetDst(dest);
}
}
else
Log.outDebug(LogFilter.Spells, "SPELL: cannot find channel spell destination for spell ID {0}, effect {1}", m_spellInfo.Id, spellEffectInfo.EffectIndex);
}
break;
}
case Targets.DestChannelCaster:
{
SpellDestination dest = new(channeledSpell.GetCaster());
CallScriptDestinationTargetSelectHandlers(ref dest, spellEffectInfo.EffectIndex, targetType);
m_targets.SetDst(dest);
break;
}
default:
Cypher.Assert(false, "Spell.SelectImplicitChannelTargets: received not implemented target type");
break;
}
}
void SelectImplicitNearbyTargets(SpellEffectInfo spellEffectInfo, SpellImplicitTargetInfo targetType, uint effMask)
{
if (targetType.GetReferenceType() != SpellTargetReferenceTypes.Caster)
{
Cypher.Assert(false, "Spell.SelectImplicitNearbyTargets: received not implemented target reference type");
return;
}
float range = 0.0f;
switch (targetType.GetCheckType())
{
case SpellTargetCheckTypes.Enemy:
range = m_spellInfo.GetMaxRange(false, m_caster, this);
break;
case SpellTargetCheckTypes.Ally:
case SpellTargetCheckTypes.Party:
case SpellTargetCheckTypes.Raid:
case SpellTargetCheckTypes.RaidClass:
range = m_spellInfo.GetMaxRange(true, m_caster, this);
break;
case SpellTargetCheckTypes.Entry:
case SpellTargetCheckTypes.Default:
range = m_spellInfo.GetMaxRange(IsPositive(), m_caster, this);
break;
default:
Cypher.Assert(false, "Spell.SelectImplicitNearbyTargets: received not implemented selection check type");
break;
}
List<Condition> condList = spellEffectInfo.ImplicitTargetConditions;
// handle emergency case - try to use other provided targets if no conditions provided
if (targetType.GetCheckType() == SpellTargetCheckTypes.Entry && (condList == null || condList.Empty()))
{
Log.outDebug(LogFilter.Spells, "Spell.SelectImplicitNearbyTargets: no conditions entry for target with TARGET_CHECK_ENTRY of spell ID {0}, effect {1} - selecting default targets", m_spellInfo.Id, spellEffectInfo.EffectIndex);
switch (targetType.GetObjectType())
{
case SpellTargetObjectTypes.Gobj:
if (m_spellInfo.RequiresSpellFocus != 0)
{
if (focusObject != null)
AddGOTarget(focusObject, effMask);
else
{
SendCastResult(SpellCastResult.BadImplicitTargets);
Finish(false);
}
return;
}
break;
case SpellTargetObjectTypes.Dest:
if (m_spellInfo.RequiresSpellFocus != 0)
{
if (focusObject != null)
{
SpellDestination dest = new(focusObject);
CallScriptDestinationTargetSelectHandlers(ref dest, spellEffectInfo.EffectIndex, targetType);
m_targets.SetDst(dest);
}
else
{
SendCastResult(SpellCastResult.BadImplicitTargets);
Finish(false);
}
return;
}
break;
default:
break;
}
}
WorldObject target = SearchNearbyTarget(range, targetType.GetObjectType(), targetType.GetCheckType(), condList);
if (target == null)
{
Log.outDebug(LogFilter.Spells, "Spell.SelectImplicitNearbyTargets: cannot find nearby target for spell ID {0}, effect {1}", m_spellInfo.Id, spellEffectInfo.EffectIndex);
SendCastResult(SpellCastResult.BadImplicitTargets);
Finish(false);
return;
}
CallScriptObjectTargetSelectHandlers(ref target, spellEffectInfo.EffectIndex, targetType);
if (!target)
{
Log.outDebug(LogFilter.Spells, $"Spell.SelectImplicitNearbyTargets: OnObjectTargetSelect script hook for spell Id {m_spellInfo.Id} set NULL target, effect {spellEffectInfo.EffectIndex}");
SendCastResult(SpellCastResult.BadImplicitTargets);
Finish(false);
return;
}
switch (targetType.GetObjectType())
{
case SpellTargetObjectTypes.Unit:
Unit unitTarget = target.ToUnit();
if (unitTarget != null)
AddUnitTarget(unitTarget, effMask, true, false);
else
{
Log.outDebug(LogFilter.Spells, $"Spell.SelectImplicitNearbyTargets: OnObjectTargetSelect script hook for spell Id {m_spellInfo.Id} set object of wrong type, expected unit, got {target.GetGUID().GetHigh()}, effect {effMask}");
SendCastResult(SpellCastResult.BadImplicitTargets);
Finish(false);
return;
}
break;
case SpellTargetObjectTypes.Gobj:
GameObject gobjTarget = target.ToGameObject();
if (gobjTarget != null)
AddGOTarget(gobjTarget, effMask);
else
{
Log.outDebug(LogFilter.Spells, $"Spell.SelectImplicitNearbyTargets: OnObjectTargetSelect script hook for spell Id {m_spellInfo.Id} set object of wrong type, expected gameobject, got {target.GetGUID().GetHigh()}, effect {effMask}");
SendCastResult(SpellCastResult.BadImplicitTargets);
Finish(false);
return;
}
break;
case SpellTargetObjectTypes.Dest:
SpellDestination dest = new(target);
CallScriptDestinationTargetSelectHandlers(ref dest, spellEffectInfo.EffectIndex, targetType);
m_targets.SetDst(dest);
break;
default:
Cypher.Assert(false, "Spell.SelectImplicitNearbyTargets: received not implemented target object type");
break;
}
SelectImplicitChainTargets(spellEffectInfo, targetType, target, effMask);
}
void SelectImplicitConeTargets(SpellEffectInfo spellEffectInfo, SpellImplicitTargetInfo targetType, uint effMask)
{
Position coneSrc = new(m_caster);
float coneAngle = m_spellInfo.ConeAngle;
switch (targetType.GetReferenceType())
{
case SpellTargetReferenceTypes.Caster:
break;
case SpellTargetReferenceTypes.Dest:
if (m_caster.GetExactDist2d(m_targets.GetDstPos()) > 0.1f)
coneSrc.SetOrientation(m_caster.GetAbsoluteAngle(m_targets.GetDstPos()));
break;
default:
break;
}
switch (targetType.GetTarget())
{
case Targets.UnitCone180DegEnemy:
if (coneAngle == 0.0f)
coneAngle = 180.0f;
break;
default:
break;
}
List<WorldObject> targets = new();
SpellTargetObjectTypes objectType = targetType.GetObjectType();
SpellTargetCheckTypes selectionType = targetType.GetCheckType();
var condList = spellEffectInfo.ImplicitTargetConditions;
float radius = spellEffectInfo.CalcRadius(m_caster) * m_spellValue.RadiusMod;
GridMapTypeMask containerTypeMask = GetSearcherTypeMask(objectType, condList);
if (containerTypeMask != 0)
{
var spellCone = new WorldObjectSpellConeTargetCheck(coneSrc, MathFunctions.DegToRad(coneAngle), m_spellInfo.Width != 0 ? m_spellInfo.Width : m_caster.GetCombatReach(), radius, m_caster, m_spellInfo, selectionType, condList, objectType);
var searcher = new WorldObjectListSearcher(m_caster, targets, spellCone, containerTypeMask);
SearchTargets(searcher, containerTypeMask, m_caster, m_caster.GetPosition(), radius);
CallScriptObjectAreaTargetSelectHandlers(targets, spellEffectInfo.EffectIndex, targetType);
if (!targets.Empty())
{
// Other special target selection goes here
uint maxTargets = m_spellValue.MaxAffectedTargets;
if (maxTargets != 0)
targets.RandomResize(maxTargets);
foreach (var obj in targets)
{
Unit unitTarget = obj.ToUnit();
GameObject gObjTarget = obj.ToGameObject();
if (unitTarget)
AddUnitTarget(unitTarget, effMask, false);
else if (gObjTarget)
AddGOTarget(gObjTarget, effMask);
}
}
}
}
void SelectImplicitAreaTargets(SpellEffectInfo spellEffectInfo, SpellImplicitTargetInfo targetType, uint effMask)
{
WorldObject referer;
switch (targetType.GetReferenceType())
{
case SpellTargetReferenceTypes.Src:
case SpellTargetReferenceTypes.Dest:
case SpellTargetReferenceTypes.Caster:
referer = m_caster;
break;
case SpellTargetReferenceTypes.Target:
referer = m_targets.GetUnitTarget();
break;
case SpellTargetReferenceTypes.Last:
{
referer = m_caster;
// find last added target for this effect
foreach (var target in m_UniqueTargetInfo)
{
if (Convert.ToBoolean(target.EffectMask & (1 << (int)spellEffectInfo.EffectIndex)))
{
referer = Global.ObjAccessor.GetUnit(m_caster, target.TargetGUID);
break;
}
}
break;
}
default:
Cypher.Assert(false, "Spell.SelectImplicitAreaTargets: received not implemented target reference type");
return;
}
if (referer == null)
return;
Position center;
switch (targetType.GetReferenceType())
{
case SpellTargetReferenceTypes.Src:
center = m_targets.GetSrcPos();
break;
case SpellTargetReferenceTypes.Dest:
center = m_targets.GetDstPos();
break;
case SpellTargetReferenceTypes.Caster:
case SpellTargetReferenceTypes.Target:
case SpellTargetReferenceTypes.Last:
center = referer.GetPosition();
break;
default:
Cypher.Assert(false, "Spell.SelectImplicitAreaTargets: received not implemented target reference type");
return;
}
float radius = spellEffectInfo.CalcRadius(m_caster) * m_spellValue.RadiusMod;
List<WorldObject> targets = new();
switch (targetType.GetTarget())
{
case Targets.UnitCasterAndPassengers:
targets.Add(m_caster);
Unit unit = m_caster.ToUnit();
if (unit != null)
{
Vehicle vehicleKit = unit.GetVehicleKit();
if (vehicleKit != null)
for (sbyte seat = 0; seat < SharedConst.MaxVehicleSeats; ++seat)
{
Unit passenger = vehicleKit.GetPassenger(seat);
if (passenger != null)
targets.Add(passenger);
}
}
break;
case Targets.UnitTargetAllyOrRaid:
Unit targetedUnit = m_targets.GetUnitTarget();
if (targetedUnit != null)
{
if (!m_caster.IsUnit() || !m_caster.ToUnit().IsInRaidWith(targetedUnit))
targets.Add(m_targets.GetUnitTarget());
else
SearchAreaTargets(targets, radius, targetedUnit, referer, targetType.GetObjectType(), targetType.GetCheckType(), spellEffectInfo.ImplicitTargetConditions);
}
break;
case Targets.UnitCasterAndSummons:
targets.Add(m_caster);
SearchAreaTargets(targets, radius, center, referer, targetType.GetObjectType(), targetType.GetCheckType(), spellEffectInfo.ImplicitTargetConditions);
break;
default:
SearchAreaTargets(targets, radius, center, referer, targetType.GetObjectType(), targetType.GetCheckType(), spellEffectInfo.ImplicitTargetConditions);
break;
}
if (targetType.GetObjectType() == SpellTargetObjectTypes.UnitAndDest)
{
SpellDestination dest = new(referer);
CallScriptDestinationTargetSelectHandlers(ref dest, spellEffectInfo.EffectIndex, targetType);
m_targets.ModDst(dest);
}
CallScriptObjectAreaTargetSelectHandlers(targets, spellEffectInfo.EffectIndex, targetType);
if (targetType.GetTarget() == Targets.UnitSrcAreaFurthestEnemy)
targets.Sort(new ObjectDistanceOrderPred(referer, false));
if (!targets.Empty())
{
// Other special target selection goes here
uint maxTargets = m_spellValue.MaxAffectedTargets;
if (maxTargets != 0)
{
if (targetType.GetTarget() != Targets.UnitSrcAreaFurthestEnemy)
targets.RandomResize(maxTargets);
else if (targets.Count > maxTargets)
targets.Resize(maxTargets);
}
foreach (var obj in targets)
{
Unit unitTarget = obj.ToUnit();
GameObject gObjTarget = obj.ToGameObject();
if (unitTarget)
AddUnitTarget(unitTarget, effMask, false, true, center);
else if (gObjTarget)
AddGOTarget(gObjTarget, effMask);
}
}
}
void SelectImplicitCasterDestTargets(SpellEffectInfo spellEffectInfo, SpellImplicitTargetInfo targetType)
{
SpellDestination dest = new(m_caster);
switch (targetType.GetTarget())
{
case Targets.DestCaster:
break;
case Targets.DestHome:
Player playerCaster = m_caster.ToPlayer();
if (playerCaster != null)
dest = new SpellDestination(playerCaster.GetHomebind());
break;
case Targets.DestDb:
SpellTargetPosition st = Global.SpellMgr.GetSpellTargetPosition(m_spellInfo.Id, spellEffectInfo.EffectIndex);
if (st != null)
{
// @todo fix this check
if (m_spellInfo.HasEffect(SpellEffectName.TeleportUnits) || m_spellInfo.HasEffect(SpellEffectName.TeleportWithSpellVisualKitLoadingScreen) || m_spellInfo.HasEffect(SpellEffectName.Bind))
dest = new SpellDestination(st.target_X, st.target_Y, st.target_Z, st.target_Orientation, st.target_mapId);
else if (st.target_mapId == m_caster.GetMapId())
dest = new SpellDestination(st.target_X, st.target_Y, st.target_Z, st.target_Orientation);
}
else
{
Log.outDebug(LogFilter.Spells, "SPELL: unknown target coordinates for spell ID {0}", m_spellInfo.Id);
WorldObject target = m_targets.GetObjectTarget();
if (target)
dest = new SpellDestination(target);
}
break;
case Targets.DestCasterFishing:
{
float minDist = m_spellInfo.GetMinRange(true);
float maxDist = m_spellInfo.GetMaxRange(true);
float dis = (float)RandomHelper.NextDouble() * (maxDist - minDist) + minDist;
float x, y, z;
float angle = (float)RandomHelper.NextDouble() * (MathFunctions.PI * 35.0f / 180.0f) - (float)(Math.PI * 17.5f / 180.0f);
m_caster.GetClosePoint(out x, out y, out z, SharedConst.DefaultPlayerBoundingRadius, dis, angle);
float ground = m_caster.GetMapHeight(x, y, z);
float liquidLevel = MapConst.VMAPInvalidHeightValue;
LiquidData liquidData;
if (m_caster.GetMap().GetLiquidStatus(m_caster.GetPhaseShift(), x, y, z, LiquidHeaderTypeFlags.AllLiquids, out liquidData, m_caster.GetCollisionHeight()) != 0)
liquidLevel = liquidData.level;
if (liquidLevel <= ground) // When there is no liquid Map.GetWaterOrGroundLevel returns ground level
{
SendCastResult(SpellCastResult.NotHere);
SendChannelUpdate(0);
Finish(false);
return;
}
if (ground + 0.75 > liquidLevel)
{
SendCastResult(SpellCastResult.TooShallow);
SendChannelUpdate(0);
Finish(false);
return;
}
dest = new SpellDestination(x, y, liquidLevel, m_caster.GetOrientation());
break;
}
case Targets.DestCasterFrontLeap:
case Targets.DestCasterMovementDirection:
{
Unit unitCaster = m_caster.ToUnit();
if (unitCaster == null)
break;
float dist = spellEffectInfo.CalcRadius(unitCaster);
float angle = targetType.CalcDirectionAngle();
if (targetType.GetTarget() == Targets.DestCasterMovementDirection)
{
switch (m_caster.m_movementInfo.GetMovementFlags() & (MovementFlag.Forward | MovementFlag.Backward | MovementFlag.StrafeLeft | MovementFlag.StrafeRight))
{
case MovementFlag.None:
case MovementFlag.Forward:
case MovementFlag.Forward | MovementFlag.Backward:
case MovementFlag.StrafeLeft | MovementFlag.StrafeRight:
case MovementFlag.Forward | MovementFlag.StrafeLeft | MovementFlag.StrafeRight:
case MovementFlag.Forward | MovementFlag.Backward | MovementFlag.StrafeLeft | MovementFlag.StrafeRight:
angle = 0.0f;
break;
case MovementFlag.Backward:
case MovementFlag.Backward | MovementFlag.StrafeLeft | MovementFlag.StrafeRight:
angle = MathF.PI;
break;
case MovementFlag.StrafeLeft:
case MovementFlag.Forward | MovementFlag.Backward | MovementFlag.StrafeLeft:
angle = (MathF.PI / 2);
break;
case MovementFlag.Forward | MovementFlag.StrafeLeft:
angle = (MathF.PI / 4);
break;
case MovementFlag.Backward | MovementFlag.StrafeLeft:
angle = (3 * MathF.PI / 4);
break;
case MovementFlag.StrafeRight:
case MovementFlag.Forward | MovementFlag.Backward | MovementFlag.StrafeRight:
angle = (-MathF.PI / 2);
break;
case MovementFlag.Forward | MovementFlag.StrafeRight:
angle = (-MathF.PI / 4);
break;
case MovementFlag.Backward | MovementFlag.StrafeRight:
angle = (-3 * MathF.PI / 4);
break;
default:
angle = 0.0f;
break;
}
}
Position pos = new(dest.Position);
unitCaster.MovePositionToFirstCollision(pos, dist, angle);
// Generate path to that point.
if (m_preGeneratedPath == null)
m_preGeneratedPath = new(unitCaster);
m_preGeneratedPath.SetPathLengthLimit(dist);
// Should we use straightline here ? What do we do when we don't have a full path ?
bool pathResult = m_preGeneratedPath.CalculatePath(pos.GetPositionX(), pos.GetPositionY(), pos.GetPositionZ(), false, true);
if (pathResult && m_preGeneratedPath.GetPathType().HasAnyFlag(PathType.Normal | PathType.Shortcut))
{
pos.posX = m_preGeneratedPath.GetActualEndPosition().X;
pos.posY = m_preGeneratedPath.GetActualEndPosition().Y;
pos.posZ = m_preGeneratedPath.GetActualEndPosition().Z;
dest.Relocate(pos);
}
break;
}
case Targets.DestCasterGround:
case Targets.DestCasterGround2:
dest.Position.posZ = m_caster.GetMapWaterOrGroundLevel(dest.Position.GetPositionX(), dest.Position.GetPositionY(), dest.Position.GetPositionZ());
break;
case Targets.DestSummoner:
{
Unit unitCaster = m_caster.ToUnit();
if (unitCaster != null)
{
TempSummon casterSummon = unitCaster.ToTempSummon();
if (casterSummon != null)
{
WorldObject summoner = casterSummon.GetSummoner();
if (summoner != null)
dest = new SpellDestination(summoner);
}
}
break;
}
default:
{
float dist = spellEffectInfo.CalcRadius(m_caster);
float angl = targetType.CalcDirectionAngle();
float objSize = m_caster.GetCombatReach();
switch (targetType.GetTarget())
{
case Targets.DestCasterSummon:
dist = SharedConst.PetFollowDist;
break;
case Targets.DestCasterRandom:
if (dist > objSize)
dist = objSize + (dist - objSize) * (float)RandomHelper.NextDouble();
break;
case Targets.DestCasterFrontLeft:
case Targets.DestCasterBackLeft:
case Targets.DestCasterFrontRight:
case Targets.DestCasterBackRight:
{
float DefaultTotemDistance = 3.0f;
if (!spellEffectInfo.HasRadius() && !spellEffectInfo.HasMaxRadius())
dist = DefaultTotemDistance;
break;
}
default:
break;
}
if (dist < objSize)
dist = objSize;
Position pos = new(dest.Position);
m_caster.MovePositionToFirstCollision(pos, dist, angl);
dest.Relocate(pos);
break;
}
}
CallScriptDestinationTargetSelectHandlers(ref dest, spellEffectInfo.EffectIndex, targetType);
m_targets.SetDst(dest);
}
void SelectImplicitTargetDestTargets(SpellEffectInfo spellEffectInfo, SpellImplicitTargetInfo targetType)
{
WorldObject target = m_targets.GetObjectTarget();
SpellDestination dest = new(target);
switch (targetType.GetTarget())
{
case Targets.DestTargetEnemy:
case Targets.DestAny:
case Targets.DestTargetAlly:
break;
default:
{
float angle = targetType.CalcDirectionAngle();
float dist = spellEffectInfo.CalcRadius(null);
if (targetType.GetTarget() == Targets.DestRandom)
dist *= (float)RandomHelper.NextDouble();
Position pos = new(dest.Position);
target.MovePositionToFirstCollision(pos, dist, angle);
dest.Relocate(pos);
}
break;
}
CallScriptDestinationTargetSelectHandlers(ref dest, spellEffectInfo.EffectIndex, targetType);
m_targets.SetDst(dest);
}
void SelectImplicitDestDestTargets(SpellEffectInfo spellEffectInfo, SpellImplicitTargetInfo targetType)
{
// set destination to caster if no dest provided
// can only happen if previous destination target could not be set for some reason
// (not found nearby target, or channel target for example
// maybe we should abort the spell in such case?
CheckDst();
SpellDestination dest = m_targets.GetDst();
switch (targetType.GetTarget())
{
case Targets.DestDynobjEnemy:
case Targets.DestDynobjAlly:
case Targets.DestDynobjNone:
case Targets.DestDest:
break;
case Targets.DestDestGround:
dest.Position.posZ = m_caster.GetMapHeight(dest.Position.GetPositionX(), dest.Position.GetPositionY(), dest.Position.GetPositionZ());
break;
default:
{
float angle = targetType.CalcDirectionAngle();
float dist = spellEffectInfo.CalcRadius(m_caster);
if (targetType.GetTarget() == Targets.DestRandom)
dist *= (float)RandomHelper.NextDouble();
Position pos = new(m_targets.GetDstPos());
m_caster.MovePositionToFirstCollision(pos, dist, angle);
dest.Relocate(pos);
}
break;
}
CallScriptDestinationTargetSelectHandlers(ref dest, spellEffectInfo.EffectIndex, targetType);
m_targets.ModDst(dest);
}
void SelectImplicitCasterObjectTargets(SpellEffectInfo spellEffectInfo, SpellImplicitTargetInfo targetType)
{
WorldObject target = null;
bool checkIfValid = true;
switch (targetType.GetTarget())
{
case Targets.UnitCaster:
target = m_caster;
checkIfValid = false;
break;
case Targets.UnitMaster:
target = m_caster.GetCharmerOrOwner();
break;
case Targets.UnitPet:
{
Unit unitCaster = m_caster.ToUnit();
if (unitCaster != null)
target = unitCaster.GetGuardianPet();
break;
}
case Targets.UnitSummoner:
{
Unit unitCaster = m_caster.ToUnit();
if (unitCaster != null)
if (unitCaster.IsSummon())
target = unitCaster.ToTempSummon().GetSummonerUnit();
break;
}
case Targets.UnitVehicle:
{
Unit unitCaster = m_caster.ToUnit();
if (unitCaster != null)
target = unitCaster.GetVehicleBase();
break;
}
case Targets.UnitPassenger0:
case Targets.UnitPassenger1:
case Targets.UnitPassenger2:
case Targets.UnitPassenger3:
case Targets.UnitPassenger4:
case Targets.UnitPassenger5:
case Targets.UnitPassenger6:
case Targets.UnitPassenger7:
Creature vehicleBase = m_caster.ToCreature();
if (vehicleBase != null && vehicleBase.IsVehicle())
target = vehicleBase.GetVehicleKit().GetPassenger((sbyte)(targetType.GetTarget() - Targets.UnitPassenger0));
break;
case Targets.UnitTargetTapList:
Creature creatureCaster = m_caster.ToCreature();
if (creatureCaster != null)
target = creatureCaster.GetLootRecipient();
break;
case Targets.UnitOwnCritter:
{
Unit unitCaster = m_caster.ToUnit();
if (unitCaster != null)
target = ObjectAccessor.GetCreatureOrPetOrVehicle(m_caster, unitCaster.GetCritterGUID());
break;
}
default:
break;
}
CallScriptObjectTargetSelectHandlers(ref target, spellEffectInfo.EffectIndex, targetType);
if (target)
{
Unit unit = target.ToUnit();
if (unit != null)
AddUnitTarget(unit, 1u << (int)spellEffectInfo.EffectIndex, checkIfValid);
else
{
GameObject go = target.ToGameObject();
if (go != null)
AddGOTarget(go, 1u << (int)spellEffectInfo.EffectIndex);
}
}
}
void SelectImplicitTargetObjectTargets(SpellEffectInfo spellEffectInfo, SpellImplicitTargetInfo targetType)
{
WorldObject target = m_targets.GetObjectTarget();
CallScriptObjectTargetSelectHandlers(ref target, spellEffectInfo.EffectIndex, targetType);
Item item = m_targets.GetItemTarget();
if (target != null)
{
if (target.ToUnit())
AddUnitTarget(target.ToUnit(), 1u << (int)spellEffectInfo.EffectIndex, true, false);
else if (target.IsTypeId(TypeId.GameObject))
AddGOTarget(target.ToGameObject(), 1u << (int)spellEffectInfo.EffectIndex);
SelectImplicitChainTargets(spellEffectInfo, targetType, target, 1u << (int)spellEffectInfo.EffectIndex);
}
// Script hook can remove object target and we would wrongly land here
else if (item != null)
AddItemTarget(item, 1u << (int)spellEffectInfo.EffectIndex);
}
void SelectImplicitChainTargets(SpellEffectInfo spellEffectInfo, SpellImplicitTargetInfo targetType, WorldObject target, uint effMask)
{
int maxTargets = spellEffectInfo.ChainTargets;
Player modOwner = m_caster.GetSpellModOwner();
if (modOwner)
modOwner.ApplySpellMod(m_spellInfo, SpellModOp.ChainTargets, ref maxTargets, this);
if (maxTargets > 1)
{
// mark damage multipliers as used
for (int k = (int)spellEffectInfo.EffectIndex; k < m_spellInfo.GetEffects().Count; ++k)
if (Convert.ToBoolean(effMask & (1 << (int)k)))
m_damageMultipliers[spellEffectInfo.EffectIndex] = 1.0f;
m_applyMultiplierMask |= effMask;
List<WorldObject> targets = new();
SearchChainTargets(targets, (uint)maxTargets - 1, target, targetType.GetObjectType(), targetType.GetCheckType(), spellEffectInfo.ImplicitTargetConditions, targetType.GetTarget() == Targets.UnitChainhealAlly);
// Chain primary target is added earlier
CallScriptObjectAreaTargetSelectHandlers(targets, spellEffectInfo.EffectIndex, targetType);
foreach (var obj in targets)
{
Unit unitTarget = obj.ToUnit();
if (unitTarget)
AddUnitTarget(unitTarget, effMask, false);
}
}
}
float Tangent(float x)
{
x = (float)Math.Tan(x);
if (x < 100000.0f && x > -100000.0f) return x;
if (x >= 100000.0f) return 100000.0f;
if (x <= 100000.0f) return -100000.0f;
return 0.0f;
}
void SelectImplicitTrajTargets(SpellEffectInfo spellEffectInfo, SpellImplicitTargetInfo targetType)
{
if (!m_targets.HasTraj())
return;
float dist2d = m_targets.GetDist2d();
if (dist2d == 0)
return;
Position srcPos = m_targets.GetSrcPos();
srcPos.SetOrientation(m_caster.GetOrientation());
float srcToDestDelta = m_targets.GetDstPos().posZ - srcPos.posZ;
List<WorldObject> targets = new();
var spellTraj = new WorldObjectSpellTrajTargetCheck(dist2d, srcPos, m_caster, m_spellInfo, targetType.GetCheckType(), spellEffectInfo.ImplicitTargetConditions, SpellTargetObjectTypes.None);
var searcher = new WorldObjectListSearcher(m_caster, targets, spellTraj);
SearchTargets(searcher, GridMapTypeMask.All, m_caster, srcPos, dist2d);
if (targets.Empty())
return;
targets.Sort(new ObjectDistanceOrderPred(m_caster));
float b = Tangent(m_targets.GetPitch());
float a = (srcToDestDelta - dist2d * b) / (dist2d * dist2d);
if (a > -0.0001f)
a = 0f;
// We should check if triggered spell has greater range (which is true in many cases, and initial spell has too short max range)
// limit max range to 300 yards, sometimes triggered spells can have 50000yds
float bestDist = m_spellInfo.GetMaxRange(false);
SpellInfo triggerSpellInfo = Global.SpellMgr.GetSpellInfo(spellEffectInfo.TriggerSpell, GetCastDifficulty());
if (triggerSpellInfo != null)
bestDist = Math.Min(Math.Max(bestDist, triggerSpellInfo.GetMaxRange(false)), Math.Min(dist2d, 300.0f));
// GameObjects don't cast traj
Unit unitCaster = m_caster.ToUnit();
foreach (var obj in targets)
{
if (m_spellInfo.CheckTarget(unitCaster, obj, true) != SpellCastResult.SpellCastOk)
continue;
Unit unitTarget = obj.ToUnit();
if (unitTarget)
{
if (unitCaster == obj || unitCaster.IsOnVehicle(unitTarget) || unitTarget.GetVehicle())
continue;
Creature creatureTarget = unitTarget.ToCreature();
if (creatureTarget)
{
if (!creatureTarget.GetCreatureTemplate().TypeFlags.HasAnyFlag(CreatureTypeFlags.CanCollideWithMissiles))
continue;
}
}
float size = Math.Max(obj.GetCombatReach(), 1.0f);
float objDist2d = srcPos.GetExactDist2d(obj);
float dz = obj.GetPositionZ() - srcPos.posZ;
float horizontalDistToTraj = (float)Math.Abs(objDist2d * Math.Sin(srcPos.GetRelativeAngle(obj)));
float sizeFactor = (float)Math.Cos((horizontalDistToTraj / size) * (Math.PI / 2.0f));
float distToHitPoint = (float)Math.Max(objDist2d * Math.Cos(srcPos.GetRelativeAngle(obj)) - size * sizeFactor, 0.0f);
float height = distToHitPoint * (a * distToHitPoint + b);
if (Math.Abs(dz - height) > size + b / 2.0f + SpellConst.TrajectoryMissileSize)
continue;
if (distToHitPoint < bestDist)
{
bestDist = distToHitPoint;
break;
}
}
if (dist2d > bestDist)
{
float x = (float)(m_targets.GetSrcPos().posX + Math.Cos(unitCaster.GetOrientation()) * bestDist);
float y = (float)(m_targets.GetSrcPos().posY + Math.Sin(unitCaster.GetOrientation()) * bestDist);
float z = m_targets.GetSrcPos().posZ + bestDist * (a * bestDist + b);
SpellDestination dest = new(x, y, z, unitCaster.GetOrientation());
CallScriptDestinationTargetSelectHandlers(ref dest, spellEffectInfo.EffectIndex, targetType);
m_targets.ModDst(dest);
}
}
void SelectImplicitLineTargets(SpellEffectInfo spellEffectInfo, SpellImplicitTargetInfo targetType, uint effMask)
{
List<WorldObject> targets = new();
SpellTargetObjectTypes objectType = targetType.GetObjectType();
SpellTargetCheckTypes selectionType = targetType.GetCheckType();
Position dst;
switch (targetType.GetReferenceType())
{
case SpellTargetReferenceTypes.Src:
dst = m_targets.GetSrcPos();
break;
case SpellTargetReferenceTypes.Dest:
dst = m_targets.GetDstPos();
break;
case SpellTargetReferenceTypes.Caster:
dst = m_caster;
break;
case SpellTargetReferenceTypes.Target:
dst = m_targets.GetUnitTarget();
break;
default:
Cypher.Assert(false, "Spell.SelectImplicitLineTargets: received not implemented target reference type");
return;
}
var condList = spellEffectInfo.ImplicitTargetConditions;
float radius = spellEffectInfo.CalcRadius(m_caster) * m_spellValue.RadiusMod;
GridMapTypeMask containerTypeMask = GetSearcherTypeMask(objectType, condList);
if (containerTypeMask != 0)
{
WorldObjectSpellLineTargetCheck check = new(m_caster, dst, m_spellInfo.Width != 0 ? m_spellInfo.Width : m_caster.GetCombatReach(), radius, m_caster, m_spellInfo, selectionType, condList, objectType);
WorldObjectListSearcher searcher = new(m_caster, targets, check, containerTypeMask);
SearchTargets(searcher, containerTypeMask, m_caster, m_caster, radius);
CallScriptObjectAreaTargetSelectHandlers(targets, spellEffectInfo.EffectIndex, targetType);
if (!targets.Empty())
{
// Other special target selection goes here
uint maxTargets = m_spellValue.MaxAffectedTargets;
if (maxTargets != 0)
{
if (maxTargets < targets.Count)
{
targets.Sort(new ObjectDistanceOrderPred(m_caster));
targets.Resize(maxTargets);
}
}
foreach (var obj in targets)
{
Unit unit = obj.ToUnit();
if (unit != null)
AddUnitTarget(unit, effMask, false);
else
{
GameObject gObjTarget = obj.ToGameObject();
if (gObjTarget != null)
AddGOTarget(gObjTarget, effMask);
}
}
}
}
}
void SelectEffectTypeImplicitTargets(SpellEffectInfo spellEffectInfo)
{
// special case for SPELL_EFFECT_SUMMON_RAF_FRIEND and SPELL_EFFECT_SUMMON_PLAYER, queue them on map for later execution
switch (spellEffectInfo.Effect)
{
case SpellEffectName.SummonRafFriend:
case SpellEffectName.SummonPlayer:
if (m_caster.IsTypeId(TypeId.Player) && !m_caster.ToPlayer().GetTarget().IsEmpty())
{
WorldObject rafTarget = Global.ObjAccessor.FindPlayer(m_caster.ToPlayer().GetTarget());
CallScriptObjectTargetSelectHandlers(ref rafTarget, spellEffectInfo.EffectIndex, new SpellImplicitTargetInfo());
// scripts may modify the target - recheck
if (rafTarget != null && rafTarget.IsPlayer())
{
// target is not stored in target map for those spells
// since we're completely skipping AddUnitTarget logic, we need to check immunity manually
// eg. aura 21546 makes target immune to summons
Player player = rafTarget.ToPlayer();
if (player.IsImmunedToSpellEffect(m_spellInfo, spellEffectInfo, null))
return;
rafTarget.GetMap().AddFarSpellCallback(map =>
{
Player player = Global.ObjAccessor.GetPlayer(map, rafTarget.GetGUID());
if (player == null)
return;
// check immunity again in case it changed during update
if (player.IsImmunedToSpellEffect(GetSpellInfo(), spellEffectInfo, null))
return;
HandleEffects(player, null, null, spellEffectInfo, SpellEffectHandleMode.HitTarget);
});
}
}
return;
default:
break;
}
// select spell implicit targets based on effect type
if (spellEffectInfo.GetImplicitTargetType() == 0)
return;
SpellCastTargetFlags targetMask = spellEffectInfo.GetMissingTargetMask();
if (targetMask == 0)
return;
WorldObject target = null;
switch (spellEffectInfo.GetImplicitTargetType())
{
// add explicit object target or self to the target map
case SpellEffectImplicitTargetTypes.Explicit:
// player which not released his spirit is Unit, but target flag for it is TARGET_FLAG_CORPSE_MASK
if (Convert.ToBoolean(targetMask & (SpellCastTargetFlags.UnitMask | SpellCastTargetFlags.CorpseMask)))
{
Unit unitTarget = m_targets.GetUnitTarget();
if (unitTarget != null)
target = unitTarget;
else if (Convert.ToBoolean(targetMask & SpellCastTargetFlags.CorpseMask))
{
Corpse corpseTarget = m_targets.GetCorpseTarget();
if (corpseTarget != null)
{
// @todo this is a workaround - corpses should be added to spell target map too, but we can't do that so we add owner instead
Player owner = Global.ObjAccessor.FindPlayer(corpseTarget.GetOwnerGUID());
if (owner != null)
target = owner;
}
}
else //if (targetMask & TARGET_FLAG_UNIT_MASK)
target = m_caster;
}
if (Convert.ToBoolean(targetMask & SpellCastTargetFlags.ItemMask))
{
Item itemTarget = m_targets.GetItemTarget();
if (itemTarget != null)
AddItemTarget(itemTarget, (uint)(1 << (int)spellEffectInfo.EffectIndex));
return;
}
if (Convert.ToBoolean(targetMask & SpellCastTargetFlags.GameobjectMask))
target = m_targets.GetGOTarget();
break;
// add self to the target map
case SpellEffectImplicitTargetTypes.Caster:
if (Convert.ToBoolean(targetMask & SpellCastTargetFlags.UnitMask))
target = m_caster;
break;
default:
break;
}
CallScriptObjectTargetSelectHandlers(ref target, spellEffectInfo.EffectIndex, new SpellImplicitTargetInfo());
if (target != null)
{
if (target.ToUnit())
AddUnitTarget(target.ToUnit(), 1u << (int)spellEffectInfo.EffectIndex, false);
else if (target.IsTypeId(TypeId.GameObject))
AddGOTarget(target.ToGameObject(), 1u << (int)spellEffectInfo.EffectIndex);
}
}
public GridMapTypeMask GetSearcherTypeMask(SpellTargetObjectTypes objType, List<Condition> condList)
{
// this function selects which containers need to be searched for spell target
GridMapTypeMask retMask = GridMapTypeMask.All;
// filter searchers based on searched object type
switch (objType)
{
case SpellTargetObjectTypes.Unit:
case SpellTargetObjectTypes.UnitAndDest:
case SpellTargetObjectTypes.Corpse:
case SpellTargetObjectTypes.CorpseEnemy:
case SpellTargetObjectTypes.CorpseAlly:
retMask &= GridMapTypeMask.Player | GridMapTypeMask.Corpse | GridMapTypeMask.Creature;
break;
case SpellTargetObjectTypes.Gobj:
case SpellTargetObjectTypes.GobjItem:
retMask &= GridMapTypeMask.GameObject;
break;
default:
break;
}
if (!m_spellInfo.HasAttribute(SpellAttr2.CanTargetDead))
retMask &= ~GridMapTypeMask.Corpse;
if (m_spellInfo.HasAttribute(SpellAttr3.OnlyTargetPlayers))
retMask &= GridMapTypeMask.Corpse | GridMapTypeMask.Player;
if (m_spellInfo.HasAttribute(SpellAttr3.OnlyTargetGhosts))
retMask &= GridMapTypeMask.Player;
if (condList != null)
retMask &= Global.ConditionMgr.GetSearcherTypeMaskForConditionList(condList);
return retMask;
}
void SearchTargets(Notifier notifier, GridMapTypeMask containerMask, WorldObject referer, Position pos, float radius)
{
if (containerMask == 0)
return;
bool searchInGrid = containerMask.HasAnyFlag(GridMapTypeMask.Creature | GridMapTypeMask.GameObject);
bool searchInWorld = containerMask.HasAnyFlag(GridMapTypeMask.Creature | GridMapTypeMask.Player | GridMapTypeMask.Corpse);
if (searchInGrid || searchInWorld)
{
float x = pos.GetPositionX();
float y = pos.GetPositionY();
CellCoord p = GridDefines.ComputeCellCoord(x, y);
Cell cell = new(p);
cell.SetNoCreate();
Map map = referer.GetMap();
if (searchInWorld)
Cell.VisitWorldObjects(x, y, map, notifier, radius);
if (searchInGrid)
Cell.VisitGridObjects(x, y, map, notifier, radius);
}
}
WorldObject SearchNearbyTarget(float range, SpellTargetObjectTypes objectType, SpellTargetCheckTypes selectionType, List<Condition> condList)
{
GridMapTypeMask containerTypeMask = GetSearcherTypeMask(objectType, condList);
if (containerTypeMask == 0)
return null;
var check = new WorldObjectSpellNearbyTargetCheck(range, m_caster, m_spellInfo, selectionType, condList, objectType);
var searcher = new WorldObjectLastSearcher(m_caster, check, containerTypeMask);
SearchTargets(searcher, containerTypeMask, m_caster, m_caster.GetPosition(), range);
return searcher.GetTarget();
}
void SearchAreaTargets(List<WorldObject> targets, float range, Position position, WorldObject referer, SpellTargetObjectTypes objectType, SpellTargetCheckTypes selectionType, List<Condition> condList)
{
var containerTypeMask = GetSearcherTypeMask(objectType, condList);
if (containerTypeMask == 0)
return;
var check = new WorldObjectSpellAreaTargetCheck(range, position, m_caster, referer, m_spellInfo, selectionType, condList, objectType);
var searcher = new WorldObjectListSearcher(m_caster, targets, check, containerTypeMask);
SearchTargets(searcher, containerTypeMask, m_caster, position, range);
}
void SearchChainTargets(List<WorldObject> targets, uint chainTargets, WorldObject target, SpellTargetObjectTypes objectType, SpellTargetCheckTypes selectType, List<Condition> condList, bool isChainHeal)
{
// max dist for jump target selection
float jumpRadius = 0.0f;
switch (m_spellInfo.DmgClass)
{
case SpellDmgClass.Ranged:
// 7.5y for multi shot
jumpRadius = 7.5f;
break;
case SpellDmgClass.Melee:
// 5y for swipe, cleave and similar
jumpRadius = 5.0f;
break;
case SpellDmgClass.None:
case SpellDmgClass.Magic:
// 12.5y for chain heal spell since 3.2 patch
if (isChainHeal)
jumpRadius = 12.5f;
// 10y as default for magic chain spells
else
jumpRadius = 10.0f;
break;
}
Player modOwner = m_caster.GetSpellModOwner();
if (modOwner)
modOwner.ApplySpellMod(m_spellInfo, SpellModOp.ChainJumpDistance, ref jumpRadius, this);
// chain lightning/heal spells and similar - allow to jump at larger distance and go out of los
bool isBouncingFar = (m_spellInfo.HasAttribute(SpellAttr4.AreaTargetChain)
|| m_spellInfo.DmgClass == SpellDmgClass.None
|| m_spellInfo.DmgClass == SpellDmgClass.Magic);
// max dist which spell can reach
float searchRadius = jumpRadius;
if (isBouncingFar)
searchRadius *= chainTargets;
List<WorldObject> tempTargets = new();
SearchAreaTargets(tempTargets, searchRadius, target.GetPosition(), m_caster, objectType, selectType, condList);
tempTargets.Remove(target);
// remove targets which are always invalid for chain spells
// for some spells allow only chain targets in front of caster (swipe for example)
if (!isBouncingFar)
{
for (var i = 0; i < tempTargets.Count; ++i)
{
var obj = tempTargets[i];
if (!m_caster.HasInArc(MathFunctions.PI, obj))
tempTargets.Remove(obj);
}
}
while (chainTargets != 0)
{
// try to get unit for next chain jump
WorldObject found = null;
// get unit with highest hp deficit in dist
if (isChainHeal)
{
uint maxHPDeficit = 0;
foreach (var obj in tempTargets)
{
Unit unitTarget = obj.ToUnit();
if (unitTarget != null)
{
uint deficit = (uint)(unitTarget.GetMaxHealth() - unitTarget.GetHealth());
if ((deficit > maxHPDeficit || found == null) && target.IsWithinDist(unitTarget, jumpRadius) && target.IsWithinLOSInMap(unitTarget, LineOfSightChecks.All, ModelIgnoreFlags.M2))
{
found = obj;
maxHPDeficit = deficit;
}
}
}
}
// get closest object
else
{
foreach (var obj in tempTargets)
{
if (found == null)
{
if ((!isBouncingFar || target.IsWithinDist(obj, jumpRadius)) && target.IsWithinLOSInMap(obj, LineOfSightChecks.All, ModelIgnoreFlags.M2))
found = obj;
}
else if (target.GetDistanceOrder(obj, found) && target.IsWithinLOSInMap(obj, LineOfSightChecks.All, ModelIgnoreFlags.M2))
found = obj;
}
}
// not found any valid target - chain ends
if (found == null)
break;
target = found;
tempTargets.Remove(found);
targets.Add(target);
--chainTargets;
}
}
GameObject SearchSpellFocus()
{
var check = new GameObjectFocusCheck(m_caster, m_spellInfo.RequiresSpellFocus);
var searcher = new GameObjectSearcher(m_caster, check);
SearchTargets(searcher, GridMapTypeMask.GameObject, m_caster, m_caster, m_caster.GetVisibilityRange());
return searcher.GetTarget();
}
void PrepareDataForTriggerSystem()
{
//==========================================================================================
// Now fill data for trigger system, need know:
// Create base triggers flags for Attacker and Victim (m_procAttacker, m_procVictim and m_hitMask)
//==========================================================================================
m_procVictim = m_procAttacker = 0;
// Get data for type of attack and fill base info for trigger
switch (m_spellInfo.DmgClass)
{
case SpellDmgClass.Melee:
m_procAttacker = ProcFlags.DoneSpellMeleeDmgClass;
if (m_attackType == WeaponAttackType.OffAttack)
m_procAttacker |= ProcFlags.DoneOffHandAttack;
else
m_procAttacker |= ProcFlags.DoneMainHandAttack;
m_procVictim = ProcFlags.TakenSpellMeleeDmgClass;
break;
case SpellDmgClass.Ranged:
// Auto attack
if (m_spellInfo.HasAttribute(SpellAttr2.AutorepeatFlag))
{
m_procAttacker = ProcFlags.DoneRangedAutoAttack;
m_procVictim = ProcFlags.TakenRangedAutoAttack;
}
else // Ranged spell attack
{
m_procAttacker = ProcFlags.DoneSpellRangedDmgClass;
m_procVictim = ProcFlags.TakenSpellRangedDmgClass;
}
break;
default:
if (m_spellInfo.EquippedItemClass == ItemClass.Weapon &&
Convert.ToBoolean(m_spellInfo.EquippedItemSubClassMask & (1 << (int)ItemSubClassWeapon.Wand))
&& m_spellInfo.HasAttribute(SpellAttr2.AutorepeatFlag)) // Wands auto attack
{
m_procAttacker = ProcFlags.DoneRangedAutoAttack;
m_procVictim = ProcFlags.TakenRangedAutoAttack;
}
break;
// For other spells trigger procflags are set in Spell::TargetInfo::DoDamageAndTriggers
// Because spell positivity is dependant on target
}
// Hunter trap spells - activation proc for Lock and Load, Entrapment and Misdirection
if (m_spellInfo.SpellFamilyName == SpellFamilyNames.Hunter && (m_spellInfo.SpellFamilyFlags[0].HasAnyFlag(0x18u) || // Freezing and Frost Trap, Freezing Arrow
m_spellInfo.Id == 57879 || // Snake Trap - done this way to avoid double proc
m_spellInfo.SpellFamilyFlags[2].HasAnyFlag(0x00024000u))) // Explosive and Immolation Trap
{
m_procAttacker |= ProcFlags.DoneTrapActivation;
// also fill up other flags (TargetInfo::DoDamageAndTriggers only fills up flag if both are not set)
m_procAttacker |= ProcFlags.DoneSpellMagicDmgClassNeg;
m_procVictim |= ProcFlags.TakenSpellMagicDmgClassNeg;
}
// Hellfire Effect - trigger as DOT
if (m_spellInfo.SpellFamilyName == SpellFamilyNames.Warlock && m_spellInfo.SpellFamilyFlags[0].HasAnyFlag(0x00000040u))
{
m_procAttacker = ProcFlags.DonePeriodic;
m_procVictim = ProcFlags.TakenPeriodic;
}
}
public void CleanupTargetList()
{
m_UniqueTargetInfo.Clear();
m_UniqueGOTargetInfo.Clear();
m_UniqueItemInfo.Clear();
m_delayMoment = 0;
}
void AddUnitTarget(Unit target, uint effectMask, bool checkIfValid = true, bool Implicit = true, Position losPosition = null)
{
foreach (var spellEffectInfo in m_spellInfo.GetEffects())
if (!spellEffectInfo.IsEffect() || !CheckEffectTarget(target, spellEffectInfo, losPosition))
effectMask &= ~(1u << (int)spellEffectInfo.EffectIndex);
// no effects left
if (effectMask == 0)
return;
if (checkIfValid)
if (m_spellInfo.CheckTarget(m_caster, target, Implicit) != SpellCastResult.SpellCastOk) // skip stealth checks for AOE
return;
// Check for effect immune skip if immuned
foreach (var spellEffectInfo in m_spellInfo.GetEffects())
if (target.IsImmunedToSpellEffect(m_spellInfo, spellEffectInfo, m_caster))
effectMask &= ~(1u << (int)spellEffectInfo.EffectIndex);
ObjectGuid targetGUID = target.GetGUID();
// Lookup target in already in list
var index = m_UniqueTargetInfo.FindIndex(target => target.TargetGUID == targetGUID);
if (index != -1) // Found in list
{
// Immune effects removed from mask
m_UniqueTargetInfo[index].EffectMask |= effectMask;
return;
}
// This is new target calculate data for him
// Get spell hit result on target
TargetInfo targetInfo = new();
targetInfo.TargetGUID = targetGUID; // Store target GUID
targetInfo.EffectMask = effectMask; // Store all effects not immune
targetInfo.IsAlive = target.IsAlive();
// Calculate hit result
WorldObject caster = m_originalCaster ? m_originalCaster : m_caster;
targetInfo.MissCondition = caster.SpellHitResult(target, m_spellInfo, m_canReflect && !(IsPositive() && m_caster.IsFriendlyTo(target)));
// Spell have speed - need calculate incoming time
// Incoming time is zero for self casts. At least I think so.
if (m_caster != target)
{
float hitDelay = m_spellInfo.LaunchDelay;
if (m_spellInfo.HasAttribute(SpellAttr9.SpecialDelayCalculation))
hitDelay += m_spellInfo.Speed;
else if (m_spellInfo.Speed > 0.0f)
{
// calculate spell incoming interval
/// @todo this is a hack
float dist = Math.Max(m_caster.GetDistance(target.GetPositionX(), target.GetPositionY(), target.GetPositionZ()), 5.0f);
hitDelay += dist / m_spellInfo.Speed;
}
targetInfo.TimeDelay = (ulong)Math.Floor(hitDelay * 1000.0f);
}
else
targetInfo.TimeDelay = 0L;
// If target reflect spell back to caster
if (targetInfo.MissCondition == SpellMissInfo.Reflect)
{
// Calculate reflected spell result on caster (shouldn't be able to reflect gameobject spells)
Unit unitCaster = m_caster.ToUnit();
targetInfo.ReflectResult = unitCaster.SpellHitResult(unitCaster, m_spellInfo, false); // can't reflect twice
// Proc spell reflect aura when missile hits the original target
target.m_Events.AddEvent(new ProcReflectDelayed(target, m_originalCasterGUID), target.m_Events.CalculateTime(targetInfo.TimeDelay));
// Increase time interval for reflected spells by 1.5
targetInfo.TimeDelay += targetInfo.TimeDelay >> 1;
}
else
targetInfo.ReflectResult = SpellMissInfo.None;
// Calculate minimum incoming time
if (targetInfo.TimeDelay != 0 && (m_delayMoment == 0 || m_delayMoment > targetInfo.TimeDelay))
m_delayMoment = targetInfo.TimeDelay;
// Add target to list
m_UniqueTargetInfo.Add(targetInfo);
}
void AddGOTarget(GameObject go, uint effectMask)
{
foreach (var spellEffectInfo in m_spellInfo.GetEffects())
if (!spellEffectInfo.IsEffect() || !CheckEffectTarget(go, spellEffectInfo))
effectMask &= ~(1u << (int)spellEffectInfo.EffectIndex);
// no effects left
if (effectMask == 0)
return;
ObjectGuid targetGUID = go.GetGUID();
// Lookup target in already in list
var index = m_UniqueGOTargetInfo.FindIndex(target => target.TargetGUID == targetGUID);
if (index != -1) // Found in list
{
// Add only effect mask
m_UniqueGOTargetInfo[index].EffectMask |= effectMask;
return;
}
// This is new target calculate data for him
GOTargetInfo target = new();
target.TargetGUID = targetGUID;
target.EffectMask = effectMask;
// Spell have speed - need calculate incoming time
if (m_caster != go)
{
float hitDelay = m_spellInfo.LaunchDelay;
if (m_spellInfo.HasAttribute(SpellAttr9.SpecialDelayCalculation))
hitDelay += m_spellInfo.Speed;
else if (m_spellInfo.Speed > 0.0f)
{
// calculate spell incoming interval
float dist = Math.Max(m_caster.GetDistance(go.GetPositionX(), go.GetPositionY(), go.GetPositionZ()), 5.0f);
hitDelay += dist / m_spellInfo.Speed;
}
target.TimeDelay = (ulong)Math.Floor(hitDelay * 1000.0f);
}
else
target.TimeDelay = 0UL;
// Calculate minimum incoming time
if (target.TimeDelay != 0 && (m_delayMoment == 0 || m_delayMoment > target.TimeDelay))
m_delayMoment = target.TimeDelay;
// Add target to list
m_UniqueGOTargetInfo.Add(target);
}
void AddItemTarget(Item item, uint effectMask)
{
foreach (var spellEffectInfo in m_spellInfo.GetEffects())
if (!spellEffectInfo.IsEffect() || !CheckEffectTarget(item, spellEffectInfo))
effectMask &= ~(1u << (int)spellEffectInfo.EffectIndex);
// no effects left
if (effectMask == 0)
return;
// Lookup target in already in list
var index = m_UniqueItemInfo.FindIndex(target => target.TargetItem == item);
if (index != -1) // Found in list
{
// Add only effect mask
m_UniqueItemInfo[index].EffectMask |= effectMask;
return;
}
// This is new target add data
ItemTargetInfo target = new();
target.TargetItem = item;
target.EffectMask = effectMask;
m_UniqueItemInfo.Add(target);
}
void AddDestTarget(SpellDestination dest, uint effIndex)
{
m_destTargets[effIndex] = dest;
}
public long GetUnitTargetCountForEffect(uint effect)
{
return m_UniqueTargetInfo.Count(targetInfo => targetInfo.MissCondition == SpellMissInfo.None && (targetInfo.EffectMask & (1 << (int)effect)) != 0);
}
public long GetGameObjectTargetCountForEffect(uint effect)
{
return m_UniqueGOTargetInfo.Count(targetInfo => (targetInfo.EffectMask & (1 << (int)effect)) != 0);
}
public long GetItemTargetCountForEffect(uint effect)
{
return m_UniqueItemInfo.Count(targetInfo => (targetInfo.EffectMask & (1 << (int)effect)) != 0);
}
public SpellMissInfo PreprocessSpellHit(Unit unit, TargetInfo hitInfo)
{
if (unit == null)
return SpellMissInfo.Evade;
// Target may have begun evading between launch and hit phases - re-check now
Creature creatureTarget = unit.ToCreature();
if (creatureTarget != null && creatureTarget.IsEvadingAttacks())
return SpellMissInfo.Evade;
// For delayed spells immunity may be applied between missile launch and hit - check immunity for that case
if (m_spellInfo.HasHitDelay() && unit.IsImmunedToSpell(m_spellInfo, m_caster))
return SpellMissInfo.Immune;
CallScriptBeforeHitHandlers(hitInfo.MissCondition);
Player player = unit.ToPlayer();
if (player != null)
{
player.StartCriteriaTimer(CriteriaStartEvent.BeSpellTarget, m_spellInfo.Id);
player.UpdateCriteria(CriteriaType.BeSpellTarget, m_spellInfo.Id, 0, 0, m_caster);
player.UpdateCriteria(CriteriaType.GainAura, m_spellInfo.Id);
}
Player casterPlayer = m_caster.ToPlayer();
if (casterPlayer)
{
casterPlayer.StartCriteriaTimer(CriteriaStartEvent.CastSpell, m_spellInfo.Id);
casterPlayer.UpdateCriteria(CriteriaType.LandTargetedSpellOnTarget, m_spellInfo.Id, 0, 0, unit);
}
if (m_caster != unit)
{
// Recheck UNIT_FLAG_NON_ATTACKABLE for delayed spells
if (m_spellInfo.HasHitDelay() && unit.HasUnitFlag(UnitFlags.NonAttackable) && unit.GetCharmerOrOwnerGUID() != m_caster.GetGUID())
return SpellMissInfo.Evade;
if (m_caster.IsValidAttackTarget(unit, m_spellInfo))
unit.RemoveAurasWithInterruptFlags(SpellAuraInterruptFlags.HostileActionReceived);
else if (m_caster.IsFriendlyTo(unit))
{
// for delayed spells ignore negative spells (after duel end) for friendly targets
if (m_spellInfo.HasHitDelay() && unit.IsPlayer() && !IsPositive() && !m_caster.IsValidAssistTarget(unit, m_spellInfo))
return SpellMissInfo.Evade;
// assisting case, healing and resurrection
if (unit.HasUnitState(UnitState.AttackPlayer))
{
Player playerOwner = m_caster.GetCharmerOrOwnerPlayerOrPlayerItself();
if (playerOwner != null)
{
playerOwner.SetContestedPvP();
playerOwner.UpdatePvP(true);
}
}
if (m_originalCaster && unit.IsInCombat() && m_spellInfo.HasInitialAggro())
{
if (m_originalCaster.HasUnitFlag(UnitFlags.PlayerControlled)) // only do explicit combat forwarding for PvP enabled units
m_originalCaster.GetCombatManager().InheritCombatStatesFrom(unit); // for creature v creature combat, the threat forward does it for us
unit.GetThreatManager().ForwardThreatForAssistingMe(m_originalCaster, 0.0f, null, true);
}
}
}
// original caster for auras
WorldObject origCaster = m_caster;
if (m_originalCaster)
origCaster = m_originalCaster;
// check immunity due to diminishing returns
if (Aura.BuildEffectMaskForOwner(m_spellInfo, SpellConst.MaxEffectMask, unit) != 0)
{
foreach (var spellEffectInfo in m_spellInfo.GetEffects())
{
hitInfo.AuraBasePoints[spellEffectInfo.EffectIndex] = (m_spellValue.CustomBasePointsMask & (1 << (int)spellEffectInfo.EffectIndex)) != 0 ?
m_spellValue.EffectBasePoints[spellEffectInfo.EffectIndex] :
spellEffectInfo.CalcBaseValue(m_originalCaster, unit, m_castItemEntry, m_castItemLevel);
}
// Get Data Needed for Diminishing Returns, some effects may have multiple auras, so this must be done on spell hit, not aura add
hitInfo.DRGroup = m_spellInfo.GetDiminishingReturnsGroupForSpell();
DiminishingLevels diminishLevel = DiminishingLevels.Level1;
if (hitInfo.DRGroup != 0)
{
diminishLevel = unit.GetDiminishing(hitInfo.DRGroup);
DiminishingReturnsType type = m_spellInfo.GetDiminishingReturnsGroupType();
// Increase Diminishing on unit, current informations for actually casts will use values above
if (type == DiminishingReturnsType.All || (type == DiminishingReturnsType.Player && unit.IsAffectedByDiminishingReturns()))
unit.IncrDiminishing(m_spellInfo);
}
// Now Reduce spell duration using data received at spell hit
// check whatever effects we're going to apply, diminishing returns only apply to negative aura effects
hitInfo.Positive = true;
if (origCaster == unit || !origCaster.IsFriendlyTo(unit))
{
foreach (var spellEffectInfo in m_spellInfo.GetEffects())
{
// mod duration only for effects applying aura!
if ((hitInfo.EffectMask & (1 << (int)spellEffectInfo.EffectIndex)) != 0 &&
spellEffectInfo.IsUnitOwnedAuraEffect() && !m_spellInfo.IsPositiveEffect(spellEffectInfo.EffectIndex))
{
hitInfo.Positive = false;
break;
}
}
}
hitInfo.AuraDuration = Aura.CalcMaxDuration(m_spellInfo, origCaster);
// unit is immune to aura if it was diminished to 0 duration
if (!hitInfo.Positive && !unit.ApplyDiminishingToDuration(m_spellInfo, ref hitInfo.AuraDuration, origCaster, diminishLevel))
if (m_spellInfo.GetEffects().All(effInfo => !effInfo.IsEffect() || effInfo.IsEffect(SpellEffectName.ApplyAura)))
return SpellMissInfo.Immune;
}
return SpellMissInfo.None;
}
public void DoSpellEffectHit(Unit unit, SpellEffectInfo spellEffectInfo, TargetInfo hitInfo)
{
uint aura_effmask = Aura.BuildEffectMaskForOwner(m_spellInfo, 1u << (int)spellEffectInfo.EffectIndex, unit);
if (aura_effmask != 0)
{
WorldObject caster = m_caster;
if (m_originalCaster)
caster = m_originalCaster;
if (caster != null)
{
// delayed spells with multiple targets need to create a new aura object, otherwise we'll access a deleted aura
if (hitInfo.HitAura == null)
{
bool resetPeriodicTimer = !_triggeredCastFlags.HasFlag(TriggerCastFlags.DontResetPeriodicTimer);
uint allAuraEffectMask = Aura.BuildEffectMaskForOwner(m_spellInfo, SpellConst.MaxEffectMask, unit);
AuraCreateInfo createInfo = new(m_castId, m_spellInfo, GetCastDifficulty(), allAuraEffectMask, unit);
createInfo.SetCasterGUID(caster.GetGUID());
createInfo.SetBaseAmount(hitInfo.AuraBasePoints);
createInfo.SetCastItem(m_castItemGUID, m_castItemEntry, m_castItemLevel);
createInfo.SetPeriodicReset(resetPeriodicTimer);
createInfo.SetOwnerEffectMask(aura_effmask);
Aura aura = Aura.TryRefreshStackOrCreate(createInfo);
if (aura != null)
{
hitInfo.HitAura = aura.ToUnitAura();
// Set aura stack amount to desired value
if (m_spellValue.AuraStackAmount > 1)
{
if (!createInfo.IsRefresh)
hitInfo.HitAura.SetStackAmount((byte)m_spellValue.AuraStackAmount);
else
hitInfo.HitAura.ModStackAmount(m_spellValue.AuraStackAmount);
}
hitInfo.HitAura.SetDiminishGroup(hitInfo.DRGroup);
if (!m_spellValue.Duration.HasValue)
{
hitInfo.AuraDuration = caster.ModSpellDuration(m_spellInfo, unit, hitInfo.AuraDuration, hitInfo.Positive, hitInfo.HitAura.GetEffectMask());
if (hitInfo.AuraDuration > 0)
{
hitInfo.AuraDuration *= (int)m_spellValue.DurationMul;
// Haste modifies duration of channeled spells
if (m_spellInfo.IsChanneled())
caster.ModSpellDurationTime(m_spellInfo, ref hitInfo.AuraDuration, this);
else if (m_spellInfo.HasAttribute(SpellAttr5.HasteAffectDuration))
{
int origDuration = hitInfo.AuraDuration;
hitInfo.AuraDuration = 0;
foreach (AuraEffect auraEff in hitInfo.HitAura.GetAuraEffects())
{
if (auraEff != null)
{
int period = auraEff.GetPeriod();
if (period != 0) // period is hastened by UNIT_MOD_CAST_SPEED
hitInfo.AuraDuration = Math.Max(Math.Max(origDuration / period, 1) * period, hitInfo.AuraDuration);
}
}
// if there is no periodic effect
if (hitInfo.AuraDuration == 0)
hitInfo.AuraDuration = (int)(origDuration * m_originalCaster.m_unitData.ModCastingSpeed);
}
}
}
else
hitInfo.AuraDuration = m_spellValue.Duration.Value;
if (hitInfo.AuraDuration != hitInfo.HitAura.GetMaxDuration())
{
hitInfo.HitAura.SetMaxDuration(hitInfo.AuraDuration);
hitInfo.HitAura.SetDuration(hitInfo.AuraDuration);
}
}
}
else
hitInfo.HitAura.AddStaticApplication(unit, aura_effmask);
}
}
spellAura = hitInfo.HitAura;
HandleEffects(unit, null, null, spellEffectInfo, SpellEffectHandleMode.HitTarget);
spellAura = null;
}
public void DoTriggersOnSpellHit(Unit unit, uint effMask)
{
// handle SPELL_AURA_ADD_TARGET_TRIGGER auras
// this is executed after spell proc spells on target hit
// spells are triggered for each hit spell target
// info confirmed with retail sniffs of permafrost and shadow weaving
if (!m_hitTriggerSpells.Empty())
{
int _duration = 0;
foreach (var hit in m_hitTriggerSpells)
{
if (CanExecuteTriggersOnHit(effMask, hit.triggeredByAura) && RandomHelper.randChance(hit.chance))
{
m_caster.CastSpell(unit, hit.triggeredSpell.Id, new CastSpellExtraArgs(TriggerCastFlags.FullMask)
.SetOriginalCastId(m_castId)
.SetCastDifficulty(hit.triggeredSpell.Difficulty));
Log.outDebug(LogFilter.Spells, "Spell {0} triggered spell {1} by SPELL_AURA_ADD_TARGET_TRIGGER aura", m_spellInfo.Id, hit.triggeredSpell.Id);
// SPELL_AURA_ADD_TARGET_TRIGGER auras shouldn't trigger auras without duration
// set duration of current aura to the triggered spell
if (hit.triggeredSpell.GetDuration() == -1)
{
Aura triggeredAur = unit.GetAura(hit.triggeredSpell.Id, m_caster.GetGUID());
if (triggeredAur != null)
{
// get duration from aura-only once
if (_duration == 0)
{
Aura aur = unit.GetAura(m_spellInfo.Id, m_caster.GetGUID());
_duration = aur != null ? aur.GetDuration() : -1;
}
triggeredAur.SetDuration(_duration);
}
}
}
}
}
// trigger linked auras remove/apply
// @todo remove/cleanup this, as this table is not documented and people are doing stupid things with it
var spellTriggered = Global.SpellMgr.GetSpellLinked((int)m_spellInfo.Id + (int)SpellLinkedType.Hit);
if (spellTriggered != null)
{
foreach (var id in spellTriggered)
{
if (id < 0)
unit.RemoveAurasDueToSpell((uint)-id);
else
unit.CastSpell(unit, (uint)id, new CastSpellExtraArgs(TriggerCastFlags.FullMask).SetOriginalCaster(m_caster.GetGUID()).SetOriginalCastId(m_castId));
}
}
}
bool UpdateChanneledTargetList()
{
// Not need check return true
if (m_channelTargetEffectMask == 0)
return true;
uint channelTargetEffectMask = m_channelTargetEffectMask;
uint channelAuraMask = 0;
foreach (var spellEffectInfo in m_spellInfo.GetEffects())
if (spellEffectInfo.IsEffect(SpellEffectName.ApplyAura))
channelAuraMask |= 1u << (int)spellEffectInfo.EffectIndex;
channelAuraMask &= channelTargetEffectMask;
float range = 0;
if (channelAuraMask != 0)
{
range = m_spellInfo.GetMaxRange(IsPositive());
Player modOwner = m_caster.GetSpellModOwner();
if (modOwner != null)
modOwner.ApplySpellMod(m_spellInfo, SpellModOp.Range, ref range, this);
// add little tolerance level
range += Math.Min(3.0f, range * 0.1f); // 10% but no more than 3.0f
}
foreach (var targetInfo in m_UniqueTargetInfo)
{
if (targetInfo.MissCondition == SpellMissInfo.None && Convert.ToBoolean(channelTargetEffectMask & targetInfo.EffectMask))
{
Unit unit = m_caster.GetGUID() == targetInfo.TargetGUID ? m_caster.ToUnit() : Global.ObjAccessor.GetUnit(m_caster, targetInfo.TargetGUID);
if (unit == null)
{
Unit unitCaster = m_caster.ToUnit();
if (unitCaster != null)
unitCaster.RemoveChannelObject(targetInfo.TargetGUID);
continue;
}
if (IsValidDeadOrAliveTarget(unit))
{
if (Convert.ToBoolean(channelAuraMask & targetInfo.EffectMask))
{
AuraApplication aurApp = unit.GetAuraApplication(m_spellInfo.Id, m_originalCasterGUID);
if (aurApp != null)
{
if (m_caster != unit && !m_caster.IsWithinDistInMap(unit, range))
{
targetInfo.EffectMask &= ~aurApp.GetEffectMask();
unit.RemoveAura(aurApp);
Unit unitCaster = m_caster.ToUnit();
if (unitCaster != null)
unitCaster.RemoveChannelObject(targetInfo.TargetGUID);
continue;
}
}
else // aura is dispelled
{
if (unitCaster != null)
unitCaster.RemoveChannelObject(targetInfo.TargetGUID);
continue;
}
}
channelTargetEffectMask &= ~targetInfo.EffectMask; // remove from need alive mask effect that have alive target
}
}
}
// is all effects from m_needAliveTargetMask have alive targets
return channelTargetEffectMask == 0;
}
public SpellCastResult Prepare(SpellCastTargets targets, AuraEffect triggeredByAura = null)
{
if (m_CastItem != null)
{
m_castItemGUID = m_CastItem.GetGUID();
m_castItemEntry = m_CastItem.GetEntry();
Player owner = m_CastItem.GetOwner();
if (owner)
m_castItemLevel = (int)m_CastItem.GetItemLevel(owner);
else if (m_CastItem.GetOwnerGUID() == m_caster.GetGUID())
m_castItemLevel = (int)m_CastItem.GetItemLevel(m_caster.ToPlayer());
else
{
SendCastResult(SpellCastResult.EquippedItem);
Finish(false);
return SpellCastResult.EquippedItem;
}
}
InitExplicitTargets(targets);
m_spellState = SpellState.Preparing;
if (triggeredByAura != null)
{
m_triggeredByAuraSpell = triggeredByAura.GetSpellInfo();
m_castItemLevel = triggeredByAura.GetBase().GetCastItemLevel();
}
// create and add update event for this spell
_spellEvent = new SpellEvent(this);
m_caster.m_Events.AddEvent(_spellEvent, m_caster.m_Events.CalculateTime(1));
// check disables
if (Global.DisableMgr.IsDisabledFor(DisableType.Spell, m_spellInfo.Id, m_caster))
{
SendCastResult(SpellCastResult.SpellUnavailable);
Finish(false);
return SpellCastResult.SpellUnavailable;
}
// Prevent casting at cast another spell (ServerSide check)
if (!_triggeredCastFlags.HasFlag(TriggerCastFlags.IgnoreCastInProgress) && m_caster.ToUnit() != null && m_caster.ToUnit().IsNonMeleeSpellCast(false, true, true, m_spellInfo.Id == 75) && !m_castId.IsEmpty())
{
SendCastResult(SpellCastResult.SpellInProgress);
Finish(false);
return SpellCastResult.SpellInProgress;
}
LoadScripts();
// Fill cost data (not use power for item casts
if (m_CastItem == null)
m_powerCost = m_spellInfo.CalcPowerCost(m_caster, m_spellSchoolMask, this);
// Set combo point requirement
if (Convert.ToBoolean(_triggeredCastFlags & TriggerCastFlags.IgnoreComboPoints) || m_CastItem != null)
m_needComboPoints = false;
int param1 = 0, param2 = 0;
SpellCastResult result = CheckCast(true, ref param1, ref param2);
// target is checked in too many locations and with different results to handle each of them
// handle just the general SPELL_FAILED_BAD_TARGETS result which is the default result for most DBC target checks
if (Convert.ToBoolean(_triggeredCastFlags & TriggerCastFlags.IgnoreTargetCheck) && result == SpellCastResult.BadTargets)
result = SpellCastResult.SpellCastOk;
if (result != SpellCastResult.SpellCastOk && !IsAutoRepeat()) //always cast autorepeat dummy for triggering
{
// Periodic auras should be interrupted when aura triggers a spell which can't be cast
// for example bladestorm aura should be removed on disarm as of patch 3.3.5
// channeled periodic spells should be affected by this (arcane missiles, penance, etc)
// a possible alternative sollution for those would be validating aura target on unit state change
if (triggeredByAura != null && triggeredByAura.IsPeriodic() && !triggeredByAura.GetBase().IsPassive())
{
SendChannelUpdate(0);
triggeredByAura.GetBase().SetDuration(0);
}
if (param1 != 0 || param2 != 0)
SendCastResult(result, param1, param2);
else
SendCastResult(result);
Finish(false);
return result;
}
// Prepare data for triggers
PrepareDataForTriggerSystem();
if (m_caster.IsTypeId(TypeId.Player))
{
if (!m_caster.ToPlayer().GetCommandStatus(PlayerCommandStates.Casttime))
{
// calculate cast time (calculated after first CheckCast check to prevent charge counting for first CheckCast fail)
m_casttime = m_spellInfo.CalcCastTime(this);
}
else
m_casttime = 0;
}
else
m_casttime = m_spellInfo.CalcCastTime(this);
// don't allow channeled spells / spells with cast time to be casted while moving
// exception are only channeled spells that have no casttime and SPELL_ATTR5_CAN_CHANNEL_WHEN_MOVING
// (even if they are interrupted on moving, spells with almost immediate effect get to have their effect processed before movement interrupter kicks in)
// don't cancel spells which are affected by a SPELL_AURA_CAST_WHILE_WALKING effect
if (((m_spellInfo.IsChanneled() || m_casttime != 0) && m_caster.IsPlayer() && !(m_caster.ToUnit().IsCharmed() && m_caster.ToUnit().GetCharmerGUID().IsCreature()) && m_caster.ToUnit().IsMoving() &&
m_spellInfo.InterruptFlags.HasFlag(SpellInterruptFlags.Movement)) && !m_caster.ToUnit().CanCastSpellWhileMoving(m_spellInfo))
{
// 1. Has casttime, 2. Or doesn't have flag to allow movement during channel
if (m_casttime != 0 || !m_spellInfo.IsMoveAllowedChannel())
{
SendCastResult(SpellCastResult.Moving);
Finish(false);
return SpellCastResult.Moving;
}
}
// focus if not controlled creature
if (m_caster.GetTypeId() == TypeId.Unit && !m_caster.ToUnit().HasUnitFlag(UnitFlags.Possessed))
{
if (!(m_spellInfo.IsNextMeleeSwingSpell() || IsAutoRepeat()))
{
if (m_targets.GetObjectTarget() && m_caster != m_targets.GetObjectTarget())
m_caster.ToCreature().SetSpellFocus(this, m_targets.GetObjectTarget());
else if (m_spellInfo.HasAttribute(SpellAttr5.DontTurnDuringCast))
m_caster.ToCreature().SetSpellFocus(this, null);
}
}
// set timer base at cast time
ReSetTimer();
Log.outDebug(LogFilter.Spells, "Spell.prepare: spell id {0} source {1} caster {2} customCastFlags {3} mask {4}", m_spellInfo.Id, m_caster.GetEntry(), m_originalCaster != null ? (int)m_originalCaster.GetEntry() : -1, _triggeredCastFlags, m_targets.GetTargetMask());
if (m_spellInfo.HasAttribute(SpellAttr12.StartCooldownOnCastStart))
SendSpellCooldown();
//Containers for channeled spells have to be set
// @todoApply this to all casted spells if needed
// Why check duration? 29350: channelled triggers channelled
if (_triggeredCastFlags.HasAnyFlag(TriggerCastFlags.CastDirectly) && (!m_spellInfo.IsChanneled() || m_spellInfo.GetMaxDuration() == 0))
Cast(true);
else
{
Unit unitCaster = m_caster.ToUnit();
if (unitCaster != null)
{
// stealth must be removed at cast starting (at show channel bar)
// skip triggered spell (item equip spell casting and other not explicit character casts/item uses)
if (!_triggeredCastFlags.HasAnyFlag(TriggerCastFlags.IgnoreAuraInterruptFlags) && m_spellInfo.IsBreakingStealth() && !m_spellInfo.HasAttribute(SpellAttr2.IgnoreActionAuraInterruptFlags))
unitCaster.RemoveAurasWithInterruptFlags(SpellAuraInterruptFlags.Action);
unitCaster.SetCurrentCastSpell(this);
}
SendSpellStart();
if (!_triggeredCastFlags.HasAnyFlag(TriggerCastFlags.IgnoreGCD))
TriggerGlobalCooldown();
// commented out !m_spellInfo.StartRecoveryTime, it forces instant spells with global cooldown to be processed in spell::update
// as a result a spell that passed CheckCast and should be processed instantly may suffer from this delayed process
// the easiest bug to observe is LoS check in AddUnitTarget, even if spell passed the CheckCast LoS check the situation can change in spell::update
// because target could be relocated in the meantime, making the spell fly to the air (no targets can be registered, so no effects processed, nothing in combat log)
if (m_casttime == 0 && /*m_spellInfo.StartRecoveryTime == 0 && */ GetCurrentContainer() == CurrentSpellTypes.Generic)
Cast(true);
}
return SpellCastResult.SpellCastOk;
}
public void Cancel()
{
if (m_spellState == SpellState.Finished)
return;
SpellState oldState = m_spellState;
m_spellState = SpellState.Finished;
m_autoRepeat = false;
switch (oldState)
{
case SpellState.Preparing:
CancelGlobalCooldown();
goto case SpellState.Delayed;
case SpellState.Delayed:
SendInterrupted(0);
SendCastResult(SpellCastResult.Interrupted);
break;
case SpellState.Casting:
foreach (var ihit in m_UniqueTargetInfo)
{
if (ihit.MissCondition == SpellMissInfo.None)
{
Unit unit = m_caster.GetGUID() == ihit.TargetGUID ? m_caster.ToUnit() : Global.ObjAccessor.GetUnit(m_caster, ihit.TargetGUID);
if (unit != null)
unit.RemoveOwnedAura(m_spellInfo.Id, m_originalCasterGUID, 0, AuraRemoveMode.Cancel);
}
}
SendChannelUpdate(0);
SendInterrupted(0);
SendCastResult(SpellCastResult.Interrupted);
m_appliedMods.Clear();
break;
default:
break;
}
SetReferencedFromCurrent(false);
if (m_selfContainer != null && m_selfContainer == this)
m_selfContainer = null;
// originalcaster handles gameobjects/dynobjects for gob caster
if (m_originalCaster != null)
{
m_originalCaster.RemoveDynObject(m_spellInfo.Id);
if (m_spellInfo.IsChanneled()) // if not channeled then the object for the current cast wasn't summoned yet
m_originalCaster.RemoveGameObject(m_spellInfo.Id, true);
}
//set state back so finish will be processed
m_spellState = oldState;
Finish(false);
}
public void Cast(bool skipCheck = false)
{
Player modOwner = m_caster.GetSpellModOwner();
Spell lastSpellMod = null;
if (modOwner)
{
lastSpellMod = modOwner.m_spellModTakingSpell;
if (lastSpellMod)
modOwner.SetSpellModTakingSpell(lastSpellMod, false);
}
_cast(skipCheck);
if (lastSpellMod)
modOwner.SetSpellModTakingSpell(lastSpellMod, true);
}
void _cast(bool skipCheck = false)
{
if (!UpdatePointers())
{
// cancel the spell if UpdatePointers() returned false, something wrong happened there
Cancel();
return;
}
// cancel at lost explicit target during cast
if (!m_targets.GetObjectTargetGUID().IsEmpty() && m_targets.GetObjectTarget() == null)
{
Cancel();
return;
}
Player playerCaster = m_caster.ToPlayer();
if (playerCaster != null)
{
// now that we've done the basic check, now run the scripts
// should be done before the spell is actually executed
Global.ScriptMgr.OnPlayerSpellCast(playerCaster, this, skipCheck);
// As of 3.0.2 pets begin attacking their owner's target immediately
// Let any pets know we've attacked something. Check DmgClass for harmful spells only
// This prevents spells such as Hunter's Mark from triggering pet attack
if (m_spellInfo.DmgClass != SpellDmgClass.None)
{
Unit target = m_targets.GetUnitTarget();
if (target != null)
{
foreach (Unit controlled in playerCaster.m_Controlled)
{
Creature cControlled = controlled.ToCreature();
if (cControlled != null)
{
CreatureAI controlledAI = cControlled.GetAI();
if (controlledAI != null)
controlledAI.OwnerAttacked(target);
}
}
}
}
}
SetExecutedCurrently(true);
if (!Convert.ToBoolean(_triggeredCastFlags & TriggerCastFlags.IgnoreSetFacing))
if (m_caster.IsTypeId(TypeId.Unit) && m_targets.GetObjectTarget() != null && m_caster != m_targets.GetObjectTarget())
m_caster.ToCreature().SetInFront(m_targets.GetObjectTarget());
// Should this be done for original caster?
Player modOwner = m_caster.GetSpellModOwner();
if (modOwner != null)
{
// Set spell which will drop charges for triggered cast spells
// if not successfully casted, will be remove in finish(false)
modOwner.SetSpellModTakingSpell(this, true);
}
CallScriptBeforeCastHandlers();
// skip check if done already (for instant cast spells for example)
if (!skipCheck)
{
void cleanupSpell(SpellCastResult result, int? param1 = null, int? param2 = null)
{
SendCastResult(result, param1, param2);
SendInterrupted(0);
if (modOwner)
modOwner.SetSpellModTakingSpell(this, false);
Finish(false);
SetExecutedCurrently(false);
}
int param1 = 0, param2 = 0;
SpellCastResult castResult = CheckCast(false, ref param1, ref param2);
if (castResult != SpellCastResult.SpellCastOk)
{
cleanupSpell(castResult, param1, param2);
return;
}
// additional check after cast bar completes (must not be in CheckCast)
// if trade not complete then remember it in trade data
if (Convert.ToBoolean(m_targets.GetTargetMask() & SpellCastTargetFlags.TradeItem))
{
if (modOwner)
{
TradeData my_trade = modOwner.GetTradeData();
if (my_trade != null)
{
if (!my_trade.IsInAcceptProcess())
{
// Spell will be casted at completing the trade. Silently ignore at this place
my_trade.SetSpell(m_spellInfo.Id, m_CastItem);
cleanupSpell(SpellCastResult.DontReport);
return;
}
}
}
}
// check diminishing returns (again, only after finish cast bar, tested on retail)
Unit target = m_targets.GetUnitTarget();
if (target != null)
{
uint aura_effmask = 0;
foreach (var spellEffectInfo in m_spellInfo.GetEffects())
if (spellEffectInfo.IsUnitOwnedAuraEffect())
aura_effmask |= 1u << (int)spellEffectInfo.EffectIndex;
if (aura_effmask != 0)
{
if (m_spellInfo.GetDiminishingReturnsGroupForSpell() != 0)
{
DiminishingReturnsType type = m_spellInfo.GetDiminishingReturnsGroupType();
if (type == DiminishingReturnsType.All || (type == DiminishingReturnsType.Player && target.IsAffectedByDiminishingReturns()))
{
Unit caster1 = m_originalCaster ? m_originalCaster : m_caster.ToUnit();
if (caster1 != null)
{
if (target.HasStrongerAuraWithDR(m_spellInfo, caster1))
{
cleanupSpell(SpellCastResult.AuraBounced);
return;
}
}
}
}
}
}
}
// if the spell allows the creature to turn while casting, then adjust server-side orientation to face the target now
// client-side orientation is handled by the client itself, as the cast target is targeted due to Creature::FocusTarget
if (m_caster.IsTypeId(TypeId.Unit) && !m_caster.ToUnit().HasUnitFlag(UnitFlags.Possessed))
{
if (!m_spellInfo.HasAttribute(SpellAttr5.DontTurnDuringCast))
{
WorldObject objTarget = m_targets.GetObjectTarget();
if (objTarget != null)
m_caster.ToCreature().SetInFront(objTarget);
}
}
SelectSpellTargets();
// Spell may be finished after target map check
if (m_spellState == SpellState.Finished)
{
SendInterrupted(0);
if (m_caster.IsTypeId(TypeId.Player))
m_caster.ToPlayer().SetSpellModTakingSpell(this, false);
Finish(false);
SetExecutedCurrently(false);
return;
}
Unit unitCaster = m_caster.ToUnit();
if (unitCaster != null)
{
if (m_spellInfo.HasAttribute(SpellAttr1.DismissPet))
{
Creature pet = ObjectAccessor.GetCreature(m_caster, unitCaster.GetPetGUID());
if (pet != null)
pet.DespawnOrUnsummon();
}
}
PrepareTriggersExecutedOnHit();
CallScriptOnCastHandlers();
// traded items have trade slot instead of guid in m_itemTargetGUID
// set to real guid to be sent later to the client
m_targets.UpdateTradeSlotItem();
Player player = m_caster.ToPlayer();
if (player != null)
{
if (!Convert.ToBoolean(_triggeredCastFlags & TriggerCastFlags.IgnoreCastItem) && m_CastItem != null)
{
player.StartCriteriaTimer(CriteriaStartEvent.UseItem, m_CastItem.GetEntry());
player.UpdateCriteria(CriteriaType.UseItem, m_CastItem.GetEntry());
}
player.UpdateCriteria(CriteriaType.CastSpell, m_spellInfo.Id);
}
Item targetItem = m_targets.GetItemTarget();
if (!Convert.ToBoolean(_triggeredCastFlags & TriggerCastFlags.IgnorePowerAndReagentCost))
{
// Powers have to be taken before SendSpellGo
TakePower();
TakeReagents(); // we must remove reagents before HandleEffects to allow place crafted item in same slot
}
else if (targetItem != null)
{
// Not own traded item (in trader trade slot) req. reagents including triggered spell case
if (targetItem.GetOwnerGUID() != m_caster.GetGUID())
TakeReagents();
}
// CAST SPELL
if (!m_spellInfo.HasAttribute(SpellAttr12.StartCooldownOnCastStart))
SendSpellCooldown();
if (m_spellInfo.LaunchDelay == 0)
{
HandleLaunchPhase();
m_launchHandled = true;
}
// we must send smsg_spell_go packet before m_castItem delete in TakeCastItem()...
SendSpellGo();
if (!m_spellInfo.IsChanneled())
{
Creature creatureCaster = m_caster.ToCreature();
if (creatureCaster != null)
creatureCaster.ReleaseSpellFocus(this);
}
// Okay, everything is prepared. Now we need to distinguish between immediate and evented delayed spells
if ((m_spellInfo.HasHitDelay() && !m_spellInfo.IsChanneled()) || m_spellInfo.HasAttribute(SpellAttr4.Unk4))
{
// Remove used for cast item if need (it can be already NULL after TakeReagents call
// in case delayed spell remove item at cast delay start
TakeCastItem();
// Okay, maps created, now prepare flags
m_immediateHandled = false;
m_spellState = SpellState.Delayed;
SetDelayStart(0);
unitCaster = m_caster.ToUnit();
if (unitCaster != null)
if (unitCaster.HasUnitState(UnitState.Casting) && !unitCaster.IsNonMeleeSpellCast(false, false, true))
unitCaster.ClearUnitState(UnitState.Casting);
}
else
{
// Immediate spell, no big deal
HandleImmediate();
}
CallScriptAfterCastHandlers();
var spell_triggered = Global.SpellMgr.GetSpellLinked((int)m_spellInfo.Id);
if (spell_triggered != null)
{
foreach (var spellId in spell_triggered)
{
if (spellId < 0)
{
unitCaster = m_caster.ToUnit();
if (unitCaster != null)
unitCaster.RemoveAurasDueToSpell((uint)-spellId);
}
else
m_caster.CastSpell(m_targets.GetUnitTarget() ?? m_caster, (uint)spellId, new CastSpellExtraArgs(TriggerCastFlags.FullMask).SetOriginalCastId(m_castId));
}
}
if (modOwner != null)
{
modOwner.SetSpellModTakingSpell(this, false);
//Clear spell cooldowns after every spell is cast if .cheat cooldown is enabled.
if (m_originalCaster != null && modOwner.GetCommandStatus(PlayerCommandStates.Cooldown))
{
m_originalCaster.GetSpellHistory().ResetCooldown(m_spellInfo.Id, true);
m_originalCaster.GetSpellHistory().RestoreCharge(m_spellInfo.ChargeCategoryId);
}
}
SetExecutedCurrently(false);
if (!m_originalCaster)
return;
// Handle procs on cast
ProcFlags procAttacker = m_procAttacker;
if (procAttacker == 0)
{
if (m_spellInfo.DmgClass == SpellDmgClass.Magic)
procAttacker = IsPositive() ? ProcFlags.DoneSpellMagicDmgClassPos : ProcFlags.DoneSpellMagicDmgClassNeg;
else
procAttacker = IsPositive() ? ProcFlags.DoneSpellNoneDmgClassPos : ProcFlags.DoneSpellNoneDmgClassNeg;
}
ProcFlagsHit hitMask = m_hitMask;
if (!hitMask.HasAnyFlag(ProcFlagsHit.Critical))
hitMask |= ProcFlagsHit.Normal;
if (!_triggeredCastFlags.HasAnyFlag(TriggerCastFlags.IgnoreAuraInterruptFlags) && !m_spellInfo.HasAttribute(SpellAttr2.IgnoreActionAuraInterruptFlags))
m_originalCaster.RemoveAurasWithInterruptFlags(SpellAuraInterruptFlags.ActionDelayed);
Unit.ProcSkillsAndAuras(m_originalCaster, null, procAttacker, ProcFlags.None, ProcFlagsSpellType.MaskAll, ProcFlagsSpellPhase.Cast, hitMask, this, null, null);
// Call CreatureAI hook OnSuccessfulSpellCast
Creature caster = m_originalCaster.ToCreature();
if (caster)
if (caster.IsAIEnabled())
caster.GetAI().OnSuccessfulSpellCast(GetSpellInfo());
}
void DoProcessTargetContainer<T>(List<T> targetContainer) where T : TargetInfoBase
{
foreach (TargetInfoBase target in targetContainer)
target.PreprocessTarget(this);
foreach (var spellEffectInfo in m_spellInfo.GetEffects())
{
foreach (TargetInfoBase target in targetContainer)
if ((target.EffectMask & (1 << (int)spellEffectInfo.EffectIndex)) != 0)
target.DoTargetSpellHit(this, spellEffectInfo);
}
foreach (TargetInfoBase target in targetContainer)
target.DoDamageAndTriggers(this);
}
void HandleImmediate()
{
// start channeling if applicable
if (m_spellInfo.IsChanneled())
{
int duration = m_spellInfo.GetDuration();
if (duration > 0 || m_spellValue.Duration.HasValue)
{
if (!m_spellValue.Duration.HasValue)
{
// First mod_duration then haste - see Missile Barrage
// Apply duration mod
Player modOwner = m_caster.GetSpellModOwner();
if (modOwner != null)
modOwner.ApplySpellMod(m_spellInfo, SpellModOp.Duration, ref duration);
duration = (int)(duration * m_spellValue.DurationMul);
// Apply haste mods
m_caster.ModSpellDurationTime(m_spellInfo, ref duration, this);
}
else
duration = m_spellValue.Duration.Value;
m_channeledDuration = duration;
SendChannelStart((uint)duration);
}
else if (duration == -1)
SendChannelStart(unchecked((uint)duration));
if (duration != 0)
{
m_spellState = SpellState.Casting;
// GameObjects shouldn't cast channeled spells
m_caster.ToUnit().AddInterruptMask(m_spellInfo.ChannelInterruptFlags, m_spellInfo.ChannelInterruptFlags2);
}
}
PrepareTargetProcessing();
// process immediate effects (items, ground, etc.) also initialize some variables
_handle_immediate_phase();
// consider spell hit for some spells without target, so they may proc on finish phase correctly
if (m_UniqueTargetInfo.Empty())
m_hitMask = ProcFlagsHit.Normal;
else
DoProcessTargetContainer(m_UniqueTargetInfo);
DoProcessTargetContainer(m_UniqueGOTargetInfo);
FinishTargetProcessing();
// spell is finished, perform some last features of the spell here
_handle_finish_phase();
// Remove used for cast item if need (it can be already NULL after TakeReagents call
TakeCastItem();
if (m_spellState != SpellState.Casting)
Finish(true); // successfully finish spell cast (not last in case autorepeat or channel spell)
}
public ulong HandleDelayed(ulong offset)
{
if (!UpdatePointers())
{
// finish the spell if UpdatePointers() returned false, something wrong happened there
Finish(false);
return 0;
}
bool single_missile = m_targets.HasDst();
ulong next_time = 0;
if (!m_launchHandled)
{
ulong launchMoment = (ulong)Math.Floor(m_spellInfo.LaunchDelay * 1000.0f);
if (launchMoment > offset)
return launchMoment;
HandleLaunchPhase();
m_launchHandled = true;
if (m_delayMoment > offset)
{
if (single_missile)
return m_delayMoment;
next_time = m_delayMoment;
if ((m_UniqueTargetInfo.Count > 2 || (m_UniqueTargetInfo.Count == 1 && m_UniqueTargetInfo[0].TargetGUID == m_caster.GetGUID())) || !m_UniqueGOTargetInfo.Empty())
{
offset = 0; // if LaunchDelay was present then the only target that has timeDelay = 0 is m_caster - and that is the only target we want to process now
}
}
}
if (single_missile && offset == 0)
return m_delayMoment;
Player modOwner = m_caster.GetSpellModOwner();
if (modOwner != null)
modOwner.SetSpellModTakingSpell(this, true);
PrepareTargetProcessing();
if (!m_immediateHandled && offset != 0)
{
_handle_immediate_phase();
m_immediateHandled = true;
}
// now recheck units targeting correctness (need before any effects apply to prevent adding immunity at first effect not allow apply second spell effect and similar cases)
{
List<TargetInfo> delayedTargets = new();
m_UniqueTargetInfo.RemoveAll(target =>
{
if (single_missile || target.TimeDelay <= offset)
{
target.TimeDelay = offset;
delayedTargets.Add(target);
return true;
}
else if (next_time == 0 || target.TimeDelay < next_time)
next_time = target.TimeDelay;
return false;
});
DoProcessTargetContainer(delayedTargets);
}
// now recheck gameobject targeting correctness
{
List<GOTargetInfo> delayedGOTargets = new();
m_UniqueGOTargetInfo.RemoveAll(goTarget =>
{
if (single_missile || goTarget.TimeDelay <= offset)
{
goTarget.TimeDelay = offset;
delayedGOTargets.Add(goTarget);
return true;
}
else if (next_time == 0 || goTarget.TimeDelay < next_time)
next_time = goTarget.TimeDelay;
return false;
});
DoProcessTargetContainer(delayedGOTargets);
}
FinishTargetProcessing();
if (modOwner)
modOwner.SetSpellModTakingSpell(this, false);
// All targets passed - need finish phase
if (next_time == 0)
{
// spell is finished, perform some last features of the spell here
_handle_finish_phase();
Finish(true); // successfully finish spell cast
// return zero, spell is finished now
return 0;
}
else
{
// spell is unfinished, return next execution time
return next_time;
}
}
void _handle_immediate_phase()
{
// handle some immediate features of the spell here
HandleThreatSpells();
// handle effects with SPELL_EFFECT_HANDLE_HIT mode
foreach (var spellEffectInfo in m_spellInfo.GetEffects())
{
// don't do anything for empty effect
if (!spellEffectInfo.IsEffect())
continue;
// call effect handlers to handle destination hit
HandleEffects(null, null, null, spellEffectInfo, SpellEffectHandleMode.Hit);
}
// process items
DoProcessTargetContainer(m_UniqueItemInfo);
}
void _handle_finish_phase()
{
Unit unitCaster = m_caster.ToUnit();
if (unitCaster != null)
{
// Take for real after all targets are processed
if (m_needComboPoints)
unitCaster.ClearComboPoints();
// Real add combo points from effects
if (m_comboPointGain != 0)
unitCaster.AddComboPoints(m_comboPointGain);
if (unitCaster.ExtraAttacks != 0 && m_spellInfo.HasEffect(SpellEffectName.AddExtraAttacks))
{
Unit victim = Global.ObjAccessor.GetUnit(unitCaster, m_targets.GetOrigUnitTargetGUID());
if (victim)
unitCaster.HandleProcExtraAttackFor(victim);
else
unitCaster.ExtraAttacks = 0;
}
}
// Handle procs on finish
if (!m_originalCaster)
return;
ProcFlags procAttacker = m_procAttacker;
if (procAttacker == 0)
{
if (m_spellInfo.DmgClass == SpellDmgClass.Magic)
procAttacker = IsPositive() ? ProcFlags.DoneSpellMagicDmgClassPos : ProcFlags.DoneSpellMagicDmgClassNeg;
else
procAttacker = IsPositive() ? ProcFlags.DoneSpellNoneDmgClassPos : ProcFlags.DoneSpellNoneDmgClassNeg;
}
Unit.ProcSkillsAndAuras(m_originalCaster, null, procAttacker, ProcFlags.None, ProcFlagsSpellType.MaskAll, ProcFlagsSpellPhase.Finish, m_hitMask, this, null, null);
}
void SendSpellCooldown()
{
if (!m_caster.IsUnit())
return;
if (m_CastItem)
m_caster.ToUnit().GetSpellHistory().HandleCooldowns(m_spellInfo, m_CastItem, this);
else
m_caster.ToUnit().GetSpellHistory().HandleCooldowns(m_spellInfo, m_castItemEntry, this);
}
public void Update(uint difftime)
{
if (!UpdatePointers())
{
// cancel the spell if UpdatePointers() returned false, something wrong happened there
Cancel();
return;
}
if (!m_targets.GetUnitTargetGUID().IsEmpty() && m_targets.GetUnitTarget() == null)
{
Log.outDebug(LogFilter.Spells, "Spell {0} is cancelled due to removal of target.", m_spellInfo.Id);
Cancel();
return;
}
// check if the player caster has moved before the spell finished
// with the exception of spells affected with SPELL_AURA_CAST_WHILE_WALKING effect
if ((m_caster.IsTypeId(TypeId.Player) && m_timer != 0) &&
m_caster.ToUnit().IsMoving() && (m_spellInfo.InterruptFlags.HasFlag(SpellInterruptFlags.Movement)) &&
(!m_spellInfo.HasEffect(SpellEffectName.Stuck) || !m_caster.ToUnit().HasUnitMovementFlag(MovementFlag.FallingFar)) &&
!m_caster.ToUnit().CanCastSpellWhileMoving(m_spellInfo))
{
// don't cancel for melee, autorepeat, triggered and instant spells
if (!m_spellInfo.IsNextMeleeSwingSpell() && !IsAutoRepeat() && !IsTriggered() && !(IsChannelActive() && m_spellInfo.IsMoveAllowedChannel()))
{
// if charmed by creature, trust the AI not to cheat and allow the cast to proceed
// @todo this is a hack, "creature" movesplines don't differentiate turning/moving right now
// however, checking what type of movement the spline is for every single spline would be really expensive
if (!m_caster.ToUnit().GetCharmerGUID().IsCreature())
Cancel();
}
}
switch (m_spellState)
{
case SpellState.Preparing:
{
if (m_timer > 0)
{
if (difftime >= m_timer)
m_timer = 0;
else
m_timer -= (int)difftime;
}
if (m_timer == 0 && !m_spellInfo.IsNextMeleeSwingSpell() && !IsAutoRepeat())
// don't CheckCast for instant spells - done in spell.prepare, skip duplicate checks, needed for range checks for example
Cast(m_casttime == 0);
break;
}
case SpellState.Casting:
{
if (m_timer != 0)
{
// check if there are alive targets left
if (!UpdateChanneledTargetList())
{
Log.outDebug(LogFilter.Spells, "Channeled spell {0} is removed due to lack of targets", m_spellInfo.Id);
m_timer = 0;
// Also remove applied auras
foreach (TargetInfo target in m_UniqueTargetInfo)
{
Unit unit = m_caster.GetGUID() == target.TargetGUID ? m_caster.ToUnit() : Global.ObjAccessor.GetUnit(m_caster, target.TargetGUID);
if (unit)
unit.RemoveOwnedAura(m_spellInfo.Id, m_originalCasterGUID, 0, AuraRemoveMode.Cancel);
}
}
if (m_timer > 0)
{
if (difftime >= m_timer)
m_timer = 0;
else
m_timer -= (int)difftime;
}
}
if (m_timer == 0)
{
SendChannelUpdate(0);
Finish();
}
break;
}
default:
break;
}
}
public void Finish(bool ok = true)
{
if (m_spellState == SpellState.Finished)
return;
m_spellState = SpellState.Finished;
if (!m_caster)
return;
Unit unitCaster = m_caster.ToUnit();
if (unitCaster != null)
return;
if (m_spellInfo.IsChanneled())
unitCaster.UpdateInterruptMask();
if (unitCaster.HasUnitState(UnitState.Casting) && !unitCaster.IsNonMeleeSpellCast(false, false, true))
unitCaster.ClearUnitState(UnitState.Casting);
// Unsummon summon as possessed creatures on spell cancel
if (m_spellInfo.IsChanneled() && unitCaster.IsTypeId(TypeId.Player))
{
Unit charm = unitCaster.GetCharmed();
if (charm != null)
if (charm.IsTypeId(TypeId.Unit) && charm.ToCreature().HasUnitTypeMask(UnitTypeMask.Puppet)
&& charm.m_unitData.CreatedBySpell == m_spellInfo.Id)
((Puppet)charm).UnSummon();
}
Creature creatureCaster = unitCaster.ToCreature();
if (creatureCaster != null)
creatureCaster.ReleaseSpellFocus(this);
if (!ok)
return;
if (unitCaster.IsTypeId(TypeId.Unit) && unitCaster.ToCreature().IsSummon())
{
// Unsummon statue
uint spell = unitCaster.m_unitData.CreatedBySpell;
SpellInfo spellInfo = Global.SpellMgr.GetSpellInfo(spell, GetCastDifficulty());
if (spellInfo != null && spellInfo.IconFileDataId == 134230)
{
Log.outDebug(LogFilter.Spells, "Statue {0} is unsummoned in spell {1} finish", unitCaster.GetGUID().ToString(), m_spellInfo.Id);
// Avoid infinite loops with setDeathState(JUST_DIED) being called over and over
// It might make sense to do this check in Unit::setDeathState() and all overloaded functions
if (unitCaster.GetDeathState() != DeathState.JustDied)
unitCaster.SetDeathState(DeathState.JustDied);
return;
}
}
if (IsAutoActionResetSpell())
{
if (!m_spellInfo.HasAttribute(SpellAttr2.NotResetAutoActions))
{
unitCaster.ResetAttackTimer(WeaponAttackType.BaseAttack);
if (unitCaster.HaveOffhandWeapon())
unitCaster.ResetAttackTimer(WeaponAttackType.OffAttack);
unitCaster.ResetAttackTimer(WeaponAttackType.RangedAttack);
}
}
// potions disabled by client, send event "not in combat" if need
if (unitCaster.IsTypeId(TypeId.Player))
{
if (m_triggeredByAuraSpell == null)
unitCaster.ToPlayer().UpdatePotionCooldown(this);
}
// Stop Attack for some spells
if (m_spellInfo.HasAttribute(SpellAttr0.StopAttackTarget))
unitCaster.AttackStop();
}
static void FillSpellCastFailedArgs<T>(T packet, ObjectGuid castId, SpellInfo spellInfo, SpellCastResult result, SpellCustomErrors customError, int? param1, int? param2, Player caster) where T : CastFailedBase
{
packet.CastID = castId;
packet.SpellID = (int)spellInfo.Id;
packet.Reason = result;
switch (result)
{
case SpellCastResult.NotReady:
if (param1.HasValue)
packet.FailedArg1 = (int)param1;
else
packet.FailedArg1 = 0;// unknown (value 1 update cooldowns on client flag)
break;
case SpellCastResult.RequiresSpellFocus:
if (param1.HasValue)
packet.FailedArg1 = (int)param1;
else
packet.FailedArg1 = (int)spellInfo.RequiresSpellFocus; // SpellFocusObject.dbc id
break;
case SpellCastResult.RequiresArea: // AreaTable.dbc id
if (param1.HasValue)
packet.FailedArg1 = (int)param1;
else
{
// hardcode areas limitation case
switch (spellInfo.Id)
{
case 41617: // Cenarion Mana Salve
case 41619: // Cenarion Healing Salve
packet.FailedArg1 = 3905;
break;
case 41618: // Bottled Nethergon Energy
case 41620: // Bottled Nethergon Vapor
packet.FailedArg1 = 3842;
break;
case 45373: // Bloodberry Elixir
packet.FailedArg1 = 4075;
break;
default: // default case (don't must be)
packet.FailedArg1 = 0;
break;
}
}
break;
case SpellCastResult.Totems:
if (param1.HasValue)
{
packet.FailedArg1 = (int)param1;
if (param2.HasValue)
packet.FailedArg2 = (int)param2;
}
else
{
if (spellInfo.Totem[0] != 0)
packet.FailedArg1 = (int)spellInfo.Totem[0];
if (spellInfo.Totem[1] != 0)
packet.FailedArg2 = (int)spellInfo.Totem[1];
}
break;
case SpellCastResult.TotemCategory:
if (param1.HasValue)
{
packet.FailedArg1 = (int)param1;
if (param2.HasValue)
packet.FailedArg2 = (int)param2;
}
else
{
if (spellInfo.TotemCategory[0] != 0)
packet.FailedArg1 = (int)spellInfo.TotemCategory[0];
if (spellInfo.TotemCategory[1] != 0)
packet.FailedArg2 = (int)spellInfo.TotemCategory[1];
}
break;
case SpellCastResult.EquippedItemClass:
case SpellCastResult.EquippedItemClassMainhand:
case SpellCastResult.EquippedItemClassOffhand:
if (param1.HasValue && param2.HasValue)
{
packet.FailedArg1 = (int)param1;
packet.FailedArg2 = (int)param2;
}
else
{
packet.FailedArg1 = (int)spellInfo.EquippedItemClass;
packet.FailedArg2 = spellInfo.EquippedItemSubClassMask;
}
break;
case SpellCastResult.TooManyOfItem:
{
if (param1.HasValue)
packet.FailedArg1 = (int)param1;
else
{
uint item = 0;
foreach (var spellEffectInfo in spellInfo.GetEffects())
if (spellEffectInfo.ItemType != 0)
item = spellEffectInfo.ItemType;
ItemTemplate proto = Global.ObjectMgr.GetItemTemplate(item);
if (proto != null && proto.GetItemLimitCategory() != 0)
packet.FailedArg1 = (int)proto.GetItemLimitCategory();
}
break;
}
case SpellCastResult.PreventedByMechanic:
if (param1.HasValue)
packet.FailedArg1 = (int)param1;
else
packet.FailedArg1 = (int)spellInfo.GetAllEffectsMechanicMask(); // SpellMechanic.dbc id
break;
case SpellCastResult.NeedExoticAmmo:
if (param1.HasValue)
packet.FailedArg1 = (int)param1;
else
packet.FailedArg1 = spellInfo.EquippedItemSubClassMask; // seems correct...
break;
case SpellCastResult.NeedMoreItems:
if (param1.HasValue && param2.HasValue)
{
packet.FailedArg1 = (int)param1;
packet.FailedArg2 = (int)param2;
}
else
{
packet.FailedArg1 = 0; // Item id
packet.FailedArg2 = 0; // Item count?
}
break;
case SpellCastResult.MinSkill:
if (param1.HasValue && param2.HasValue)
{
packet.FailedArg1 = (int)param1;
packet.FailedArg2 = (int)param2;
}
else
{
packet.FailedArg1 = 0; // SkillLine.dbc id
packet.FailedArg2 = 0; // required skill value
}
break;
case SpellCastResult.FishingTooLow:
if (param1.HasValue)
packet.FailedArg1 = (int)param1;
else
packet.FailedArg1 = 0; // required fishing skill
break;
case SpellCastResult.CustomError:
packet.FailedArg1 = (int)customError;
break;
case SpellCastResult.Silenced:
if (param1.HasValue)
packet.FailedArg1 = (int)param1;
else
packet.FailedArg1 = 0; // Unknown
break;
case SpellCastResult.Reagents:
{
if (param1.HasValue)
packet.FailedArg1 = (int)param1;
else
{
for (uint i = 0; i < SpellConst.MaxReagents; i++)
{
if (spellInfo.Reagent[i] <= 0)
continue;
uint itemid = (uint)spellInfo.Reagent[i];
uint itemcount = spellInfo.ReagentCount[i];
if (!caster.HasItemCount(itemid, itemcount))
{
packet.FailedArg1 = (int)itemid; // first missing item
break;
}
}
}
if (param2.HasValue)
packet.FailedArg2 = (int)param2;
else if (!param1.HasValue)
{
foreach (var reagentsCurrency in spellInfo.ReagentsCurrency)
{
if (!caster.HasCurrency(reagentsCurrency.CurrencyTypesID, reagentsCurrency.CurrencyCount))
{
packet.FailedArg1 = -1;
packet.FailedArg2 = reagentsCurrency.CurrencyTypesID;
break;
}
}
}
break;
}
case SpellCastResult.CantUntalent:
{
Cypher.Assert(param1.HasValue);
packet.FailedArg1 = (int)param1;
break;
}
// TODO: SPELL_FAILED_NOT_STANDING
default:
break;
}
}
public void SendCastResult(SpellCastResult result, int? param1 = null, int? param2 = null)
{
if (result == SpellCastResult.SpellCastOk)
return;
if (!m_caster.IsTypeId(TypeId.Player))
return;
if (m_caster.ToPlayer().IsLoading()) // don't send cast results at loading time
return;
if (_triggeredCastFlags.HasAnyFlag(TriggerCastFlags.DontReportCastError))
result = SpellCastResult.DontReport;
CastFailed castFailed = new();
castFailed.Visual = m_SpellVisual;
FillSpellCastFailedArgs(castFailed, m_castId, m_spellInfo, result, m_customError, param1, param2, m_caster.ToPlayer());
m_caster.ToPlayer().SendPacket(castFailed);
}
public void SendPetCastResult(SpellCastResult result, int? param1 = null, int? param2 = null)
{
if (result == SpellCastResult.SpellCastOk)
return;
Unit owner = m_caster.GetCharmerOrOwner();
if (!owner || !owner.IsTypeId(TypeId.Player))
return;
if (_triggeredCastFlags.HasAnyFlag(TriggerCastFlags.DontReportCastError))
result = SpellCastResult.DontReport;
PetCastFailed petCastFailed = new();
FillSpellCastFailedArgs(petCastFailed, m_castId, m_spellInfo, result, SpellCustomErrors.None, param1, param2, owner.ToPlayer());
owner.ToPlayer().SendPacket(petCastFailed);
}
public static void SendCastResult(Player caster, SpellInfo spellInfo, SpellCastVisual spellVisual, ObjectGuid castCount, SpellCastResult result, SpellCustomErrors customError = SpellCustomErrors.None, int? param1 = null, int? param2 = null)
{
if (result == SpellCastResult.SpellCastOk)
return;
CastFailed packet = new();
packet.Visual = spellVisual;
FillSpellCastFailedArgs(packet, castCount, spellInfo, result, customError, param1, param2, caster);
caster.SendPacket(packet);
}
void SendMountResult(MountResult result)
{
if (result == MountResult.Ok)
return;
if (!m_caster.IsPlayer())
return;
Player caster = m_caster.ToPlayer();
if (caster.IsLoading()) // don't send mount results at loading time
return;
MountResultPacket packet = new();
packet.Result = (uint)result;
caster.SendPacket(packet);
}
void SendSpellStart()
{
if (!IsNeedSendToClient())
return;
SpellCastFlags castFlags = SpellCastFlags.HasTrajectory;
uint schoolImmunityMask = 0;
uint mechanicImmunityMask = 0;
Unit unitCaster = m_caster.ToUnit();
if (unitCaster != null)
{
schoolImmunityMask = unitCaster.GetSchoolImmunityMask();
mechanicImmunityMask = unitCaster.GetMechanicImmunityMask();
}
if (schoolImmunityMask != 0 || mechanicImmunityMask != 0)
castFlags |= SpellCastFlags.Immunity;
if (((IsTriggered() && !m_spellInfo.IsAutoRepeatRangedSpell()) || m_triggeredByAuraSpell != null) && !m_fromClient)
castFlags |= SpellCastFlags.Pending;
if (m_spellInfo.HasAttribute(SpellAttr0.ReqAmmo) || m_spellInfo.HasAttribute(SpellAttr10.UsesRangedSlotCosmeticOnly) || m_spellInfo.HasAttribute(SpellCustomAttributes.NeedsAmmoData))
castFlags |= SpellCastFlags.Projectile;
if ((m_caster.IsTypeId(TypeId.Player) || (m_caster.IsTypeId(TypeId.Unit) && m_caster.ToCreature().IsPet())) && m_powerCost.Any(cost => cost.Power != PowerType.Health))
castFlags |= SpellCastFlags.PowerLeftSelf;
if (HasPowerTypeCost(PowerType.Runes))
castFlags |= SpellCastFlags.NoGCD; // not needed, but Blizzard sends it
SpellStart packet = new();
SpellCastData castData = packet.Cast;
if (m_CastItem)
castData.CasterGUID = m_CastItem.GetGUID();
else
castData.CasterGUID = m_caster.GetGUID();
castData.CasterUnit = m_caster.GetGUID();
castData.CastID = m_castId;
castData.OriginalCastID = m_originalCastId;
castData.SpellID = (int)m_spellInfo.Id;
castData.Visual = m_SpellVisual;
castData.CastFlags = castFlags;
castData.CastFlagsEx = m_castFlagsEx;
castData.CastTime = (uint)m_casttime;
m_targets.Write(castData.Target);
if (castFlags.HasAnyFlag(SpellCastFlags.PowerLeftSelf))
{
foreach (SpellPowerCost cost in m_powerCost)
{
SpellPowerData powerData;
powerData.Type = cost.Power;
powerData.Cost = m_caster.ToUnit().GetPower(cost.Power);
castData.RemainingPower.Add(powerData);
}
}
if (castFlags.HasAnyFlag(SpellCastFlags.RuneList)) // rune cooldowns list
{
castData.RemainingRunes.Value = new();
RuneData runeData = castData.RemainingRunes.Value;
//TODO: There is a crash caused by a spell with CAST_FLAG_RUNE_LIST casted by a creature
//The creature is the mover of a player, so HandleCastSpellOpcode uses it as the caster
Player player = m_caster.ToPlayer();
if (player)
{
runeData.Start = m_runesState; // runes state before
runeData.Count = player.GetRunesState(); // runes state after
for (byte i = 0; i < player.GetMaxPower(PowerType.Runes); ++i)
{
// float casts ensure the division is performed on floats as we need float result
float baseCd = player.GetRuneBaseCooldown();
runeData.Cooldowns.Add((byte)((baseCd - player.GetRuneCooldown(i)) / baseCd * 255)); // rune cooldown passed
}
}
else
{
runeData.Start = 0;
runeData.Count = 0;
for (byte i = 0; i < player.GetMaxPower(PowerType.Runes); ++i)
runeData.Cooldowns.Add(0);
}
}
UpdateSpellCastDataAmmo(castData.Ammo);
if (castFlags.HasAnyFlag(SpellCastFlags.Immunity))
{
castData.Immunities.School = schoolImmunityMask;
castData.Immunities.Value = mechanicImmunityMask;
}
/** @todo implement heal prediction packet data
if (castFlags & CAST_FLAG_HEAL_PREDICTION)
{
castData.Predict.BeconGUID = ??
castData.Predict.Points = 0;
castData.Predict.Type = 0;
}**/
m_caster.SendMessageToSet(packet, true);
}
void SendSpellGo()
{
// not send invisible spell casting
if (!IsNeedSendToClient())
return;
Log.outDebug(LogFilter.Spells, "Sending SMSG_SPELL_GO id={0}", m_spellInfo.Id);
SpellCastFlags castFlags = SpellCastFlags.Unk9;
// triggered spells with spell visual != 0
if (((IsTriggered() && !m_spellInfo.IsAutoRepeatRangedSpell()) || m_triggeredByAuraSpell != null) && !m_fromClient)
castFlags |= SpellCastFlags.Pending;
if (m_spellInfo.HasAttribute(SpellAttr0.ReqAmmo) || m_spellInfo.HasAttribute(SpellAttr10.UsesRangedSlotCosmeticOnly) || m_spellInfo.HasAttribute(SpellCustomAttributes.NeedsAmmoData))
castFlags |= SpellCastFlags.Projectile; // arrows/bullets visual
if ((m_caster.IsTypeId(TypeId.Player) || (m_caster.IsTypeId(TypeId.Unit) && m_caster.ToCreature().IsPet())) && m_powerCost.Any(cost => cost.Power != PowerType.Health))
castFlags |= SpellCastFlags.PowerLeftSelf;
if (m_caster.IsTypeId(TypeId.Player) && m_caster.ToPlayer().GetClass() == Class.Deathknight &&
HasPowerTypeCost(PowerType.Runes) && !_triggeredCastFlags.HasAnyFlag(TriggerCastFlags.IgnorePowerAndReagentCost))
{
castFlags |= SpellCastFlags.NoGCD; // same as in SMSG_SPELL_START
castFlags |= SpellCastFlags.RuneList; // rune cooldowns list
}
if (m_targets.HasTraj())
castFlags |= SpellCastFlags.AdjustMissile;
if (m_spellInfo.StartRecoveryTime == 0)
castFlags |= SpellCastFlags.NoGCD;
SpellGo packet = new();
SpellCastData castData = packet.Cast;
if (m_CastItem != null)
castData.CasterGUID = m_CastItem.GetGUID();
else
castData.CasterGUID = m_caster.GetGUID();
castData.CasterUnit = m_caster.GetGUID();
castData.CastID = m_castId;
castData.OriginalCastID = m_originalCastId;
castData.SpellID = (int)m_spellInfo.Id;
castData.Visual = m_SpellVisual;
castData.CastFlags = castFlags;
castData.CastFlagsEx = m_castFlagsEx;
castData.CastTime = Time.GetMSTime();
castData.HitTargets = new List<ObjectGuid>();
UpdateSpellCastDataTargets(castData);
m_targets.Write(castData.Target);
if (Convert.ToBoolean(castFlags & SpellCastFlags.PowerLeftSelf))
{
castData.RemainingPower = new List<SpellPowerData>();
foreach (SpellPowerCost cost in m_powerCost)
{
SpellPowerData powerData;
powerData.Type = cost.Power;
powerData.Cost = m_caster.ToUnit().GetPower(cost.Power);
castData.RemainingPower.Add(powerData);
}
}
if (Convert.ToBoolean(castFlags & SpellCastFlags.RuneList)) // rune cooldowns list
{
castData.RemainingRunes.Value = new();
RuneData runeData = castData.RemainingRunes.Value;
Player player = m_caster.ToPlayer();
runeData.Start = m_runesState; // runes state before
runeData.Count = player.GetRunesState(); // runes state after
for (byte i = 0; i < player.GetMaxPower(PowerType.Runes); ++i)
{
// float casts ensure the division is performed on floats as we need float result
float baseCd = (float)player.GetRuneBaseCooldown();
runeData.Cooldowns.Add((byte)((baseCd - (float)player.GetRuneCooldown(i)) / baseCd * 255)); // rune cooldown passed
}
}
if (castFlags.HasFlag(SpellCastFlags.AdjustMissile))
{
castData.MissileTrajectory.TravelTime = (uint)m_delayMoment;
castData.MissileTrajectory.Pitch = m_targets.GetPitch();
}
packet.LogData.Initialize(this);
m_caster.SendCombatLogMessage(packet);
}
// Writes miss and hit targets for a SMSG_SPELL_GO packet
void UpdateSpellCastDataTargets(SpellCastData data)
{
// This function also fill data for channeled spells:
// m_needAliveTargetMask req for stop channelig if one target die
foreach (var targetInfo in m_UniqueTargetInfo)
{
if (targetInfo.EffectMask == 0) // No effect apply - all immuned add state
// possibly SPELL_MISS_IMMUNE2 for this??
targetInfo.MissCondition = SpellMissInfo.Immune2;
if (targetInfo.MissCondition == SpellMissInfo.None) // hits
{
data.HitTargets.Add(targetInfo.TargetGUID);
data.HitStatus.Add(new SpellHitStatus(SpellMissInfo.None));
m_channelTargetEffectMask |= targetInfo.EffectMask;
}
else // misses
{
data.MissTargets.Add(targetInfo.TargetGUID);
data.MissStatus.Add(new SpellMissStatus(targetInfo.MissCondition, targetInfo.ReflectResult));
}
}
foreach (GOTargetInfo targetInfo in m_UniqueGOTargetInfo)
data.HitTargets.Add(targetInfo.TargetGUID); // Always hits
// Reset m_needAliveTargetMask for non channeled spell
if (!m_spellInfo.IsChanneled())
m_channelTargetEffectMask = 0;
}
void UpdateSpellCastDataAmmo(SpellAmmo ammo)
{
InventoryType ammoInventoryType = 0;
uint ammoDisplayID = 0;
Player playerCaster = m_caster.ToPlayer();
if (playerCaster != null)
{
Item pItem = playerCaster.GetWeaponForAttack(WeaponAttackType.RangedAttack);
if (pItem)
{
ammoInventoryType = pItem.GetTemplate().GetInventoryType();
if (ammoInventoryType == InventoryType.Thrown)
ammoDisplayID = pItem.GetDisplayId(playerCaster);
else if (playerCaster.HasAura(46699)) // Requires No Ammo
{
ammoDisplayID = 5996; // normal arrow
ammoInventoryType = InventoryType.Ammo;
}
}
}
else
{
Unit unitCaster = m_caster.ToUnit();
if (unitCaster != null)
{
uint nonRangedAmmoDisplayID = 0;
InventoryType nonRangedAmmoInventoryType = 0;
for (byte i = (int)WeaponAttackType.BaseAttack; i < (int)WeaponAttackType.Max; ++i)
{
uint itemId = unitCaster.GetVirtualItemId(i);
if (itemId != 0)
{
ItemRecord itemEntry = CliDB.ItemStorage.LookupByKey(itemId);
if (itemEntry != null)
{
if (itemEntry.ClassID == ItemClass.Weapon)
{
switch ((ItemSubClassWeapon)itemEntry.SubclassID)
{
case ItemSubClassWeapon.Thrown:
ammoDisplayID = Global.DB2Mgr.GetItemDisplayId(itemId, unitCaster.GetVirtualItemAppearanceMod(i));
ammoInventoryType = (InventoryType)itemEntry.inventoryType;
break;
case ItemSubClassWeapon.Bow:
case ItemSubClassWeapon.Crossbow:
ammoDisplayID = 5996; // is this need fixing?
ammoInventoryType = InventoryType.Ammo;
break;
case ItemSubClassWeapon.Gun:
ammoDisplayID = 5998; // is this need fixing?
ammoInventoryType = InventoryType.Ammo;
break;
default:
nonRangedAmmoDisplayID = Global.DB2Mgr.GetItemDisplayId(itemId, unitCaster.GetVirtualItemAppearanceMod(i));
nonRangedAmmoInventoryType = itemEntry.inventoryType;
break;
}
if (ammoDisplayID != 0)
break;
}
}
}
}
if (ammoDisplayID == 0 && ammoInventoryType == 0)
{
ammoDisplayID = nonRangedAmmoDisplayID;
ammoInventoryType = nonRangedAmmoInventoryType;
}
}
}
ammo.DisplayID = (int)ammoDisplayID;
ammo.InventoryType = (sbyte)ammoInventoryType;
}
void SendSpellExecuteLog()
{
if (_executeLogEffects.Empty())
return;
SpellExecuteLog spellExecuteLog = new();
spellExecuteLog.Caster = m_caster.GetGUID();
spellExecuteLog.SpellID = m_spellInfo.Id;
spellExecuteLog.Effects = _executeLogEffects.Values.ToList();
spellExecuteLog.LogData.Initialize(this);
m_caster.SendCombatLogMessage(spellExecuteLog);
}
SpellLogEffect GetExecuteLogEffect(SpellEffectName effect)
{
var spellLogEffect = _executeLogEffects.LookupByKey(effect);
if (spellLogEffect != null)
return spellLogEffect;
SpellLogEffect executeLogEffect = new();
executeLogEffect.Effect = (int)effect;
_executeLogEffects.Add(effect, executeLogEffect);
return executeLogEffect;
}
void ExecuteLogEffectTakeTargetPower(SpellEffectName effect, Unit target, PowerType powerType, uint points, float amplitude)
{
SpellLogEffectPowerDrainParams spellLogEffectPowerDrainParams;
spellLogEffectPowerDrainParams.Victim = target.GetGUID();
spellLogEffectPowerDrainParams.Points = points;
spellLogEffectPowerDrainParams.PowerType = (uint)powerType;
spellLogEffectPowerDrainParams.Amplitude = amplitude;
GetExecuteLogEffect(effect).PowerDrainTargets.Add(spellLogEffectPowerDrainParams);
}
void ExecuteLogEffectExtraAttacks(SpellEffectName effect, Unit victim, uint numAttacks)
{
SpellLogEffectExtraAttacksParams spellLogEffectExtraAttacksParams;
spellLogEffectExtraAttacksParams.Victim = victim.GetGUID();
spellLogEffectExtraAttacksParams.NumAttacks = numAttacks;
GetExecuteLogEffect(effect).ExtraAttacksTargets.Add(spellLogEffectExtraAttacksParams);
}
void SendSpellInterruptLog(Unit victim, uint spellId)
{
SpellInterruptLog data = new();
data.Caster = m_caster.GetGUID();
data.Victim = victim.GetGUID();
data.InterruptedSpellID = m_spellInfo.Id;
data.SpellID = spellId;
m_caster.SendMessageToSet(data, true);
}
void ExecuteLogEffectDurabilityDamage(SpellEffectName effect, Unit victim, int itemId, int amount)
{
SpellLogEffectDurabilityDamageParams spellLogEffectDurabilityDamageParams;
spellLogEffectDurabilityDamageParams.Victim = victim.GetGUID();
spellLogEffectDurabilityDamageParams.ItemID = itemId;
spellLogEffectDurabilityDamageParams.Amount = amount;
GetExecuteLogEffect(effect).DurabilityDamageTargets.Add(spellLogEffectDurabilityDamageParams);
}
void ExecuteLogEffectOpenLock(SpellEffectName effect, WorldObject obj)
{
SpellLogEffectGenericVictimParams spellLogEffectGenericVictimParams;
spellLogEffectGenericVictimParams.Victim = obj.GetGUID();
GetExecuteLogEffect(effect).GenericVictimTargets.Add(spellLogEffectGenericVictimParams);
}
void ExecuteLogEffectCreateItem(SpellEffectName effect, uint entry)
{
SpellLogEffectTradeSkillItemParams spellLogEffectTradeSkillItemParams;
spellLogEffectTradeSkillItemParams.ItemID = (int)entry;
GetExecuteLogEffect(effect).TradeSkillTargets.Add(spellLogEffectTradeSkillItemParams);
}
void ExecuteLogEffectDestroyItem(SpellEffectName effect, uint entry)
{
SpellLogEffectFeedPetParams spellLogEffectFeedPetParams;
spellLogEffectFeedPetParams.ItemID = (int)entry;
GetExecuteLogEffect(effect).FeedPetTargets.Add(spellLogEffectFeedPetParams);
}
void ExecuteLogEffectSummonObject(SpellEffectName effect, WorldObject obj)
{
SpellLogEffectGenericVictimParams spellLogEffectGenericVictimParams;
spellLogEffectGenericVictimParams.Victim = obj.GetGUID();
GetExecuteLogEffect(effect).GenericVictimTargets.Add(spellLogEffectGenericVictimParams);
}
void ExecuteLogEffectUnsummonObject(SpellEffectName effect, WorldObject obj)
{
SpellLogEffectGenericVictimParams spellLogEffectGenericVictimParams;
spellLogEffectGenericVictimParams.Victim = obj.GetGUID();
GetExecuteLogEffect(effect).GenericVictimTargets.Add(spellLogEffectGenericVictimParams);
}
void ExecuteLogEffectResurrect(SpellEffectName effect, Unit target)
{
SpellLogEffectGenericVictimParams spellLogEffectGenericVictimParams;
spellLogEffectGenericVictimParams.Victim = target.GetGUID();
GetExecuteLogEffect(effect).GenericVictimTargets.Add(spellLogEffectGenericVictimParams);
}
void SendInterrupted(byte result)
{
SpellFailure failurePacket = new();
failurePacket.CasterUnit = m_caster.GetGUID();
failurePacket.CastID = m_castId;
failurePacket.SpellID = m_spellInfo.Id;
failurePacket.Visual = m_SpellVisual;
failurePacket.Reason = result;
m_caster.SendMessageToSet(failurePacket, true);
SpellFailedOther failedPacket = new();
failedPacket.CasterUnit = m_caster.GetGUID();
failedPacket.CastID = m_castId;
failedPacket.SpellID = m_spellInfo.Id;
failedPacket.Visual = m_SpellVisual;
failedPacket.Reason = result;
m_caster.SendMessageToSet(failedPacket, true);
}
public void SendChannelUpdate(uint time)
{
// GameObjects don't channel
Unit unitCaster = m_caster.ToUnit();
if (unitCaster == null)
return;
if (time == 0)
{
unitCaster.ClearChannelObjects();
unitCaster.SetChannelSpellId(0);
unitCaster.SetChannelVisual(new SpellCastVisualField());
}
SpellChannelUpdate spellChannelUpdate = new();
spellChannelUpdate.CasterGUID = unitCaster.GetGUID();
spellChannelUpdate.TimeRemaining = (int)time;
unitCaster.SendMessageToSet(spellChannelUpdate, true);
}
void SendChannelStart(uint duration)
{
// GameObjects don't channel
Unit unitCaster = m_caster.ToUnit();
if (unitCaster == null)
return;
SpellChannelStart spellChannelStart = new();
spellChannelStart.CasterGUID = unitCaster.GetGUID();
spellChannelStart.SpellID = (int)m_spellInfo.Id;
spellChannelStart.Visual = m_SpellVisual;
spellChannelStart.ChannelDuration = duration;
uint schoolImmunityMask = unitCaster.GetSchoolImmunityMask();
uint mechanicImmunityMask = unitCaster.GetMechanicImmunityMask();
if (schoolImmunityMask != 0 || mechanicImmunityMask != 0)
{
spellChannelStart.InterruptImmunities.Value = new();
spellChannelStart.InterruptImmunities.Value.SchoolImmunities = (int)schoolImmunityMask;
spellChannelStart.InterruptImmunities.Value.Immunities = (int)mechanicImmunityMask;
}
unitCaster.SendMessageToSet(spellChannelStart, true);
m_timer = (int)duration;
uint channelAuraMask = 0;
uint explicitTargetEffectMask = 0xFFFFFFFF;
// if there is an explicit target, only add channel objects from effects that also hit ut
if (!m_targets.GetUnitTargetGUID().IsEmpty())
{
var explicitTarget = m_UniqueTargetInfo.Find(target => target.TargetGUID == m_targets.GetUnitTargetGUID());
if (explicitTarget != null)
explicitTargetEffectMask = explicitTarget.EffectMask;
}
foreach (var spellEffectInfo in m_spellInfo.GetEffects())
if (spellEffectInfo.Effect == SpellEffectName.ApplyAura && (explicitTargetEffectMask & (1u << (int)spellEffectInfo.EffectIndex)) != 0)
channelAuraMask |= 1u << (int)spellEffectInfo.EffectIndex;
foreach (TargetInfo target in m_UniqueTargetInfo)
{
if ((target.EffectMask & channelAuraMask) != 0)
unitCaster.AddChannelObject(target.TargetGUID);
if (m_UniqueTargetInfo.Count == 1 && m_UniqueGOTargetInfo.Empty())
{
Creature creatureCaster = unitCaster.ToCreature();
if (creatureCaster != null)
if (!creatureCaster.HasSpellFocus(this))
creatureCaster.SetSpellFocus(this, Global.ObjAccessor.GetWorldObject(creatureCaster, target.TargetGUID));
}
}
foreach (GOTargetInfo target in m_UniqueGOTargetInfo)
if ((target.EffectMask & channelAuraMask) != 0)
unitCaster.AddChannelObject(target.TargetGUID);
unitCaster.SetChannelSpellId(m_spellInfo.Id);
unitCaster.SetChannelVisual(m_SpellVisual);
}
void SendResurrectRequest(Player target)
{
// get resurrector name for creature resurrections, otherwise packet will be not accepted
// for player resurrections the name is looked up by guid
string sentName = "";
if (!m_caster.IsPlayer())
sentName = m_caster.GetName(target.GetSession().GetSessionDbLocaleIndex());
ResurrectRequest resurrectRequest = new();
resurrectRequest.ResurrectOffererGUID = m_caster.GetGUID();
resurrectRequest.ResurrectOffererVirtualRealmAddress = Global.WorldMgr.GetVirtualRealmAddress();
resurrectRequest.Name = sentName;
resurrectRequest.Sickness = m_caster.IsUnit() && !m_caster.IsTypeId(TypeId.Player); // "you'll be afflicted with resurrection sickness"
resurrectRequest.UseTimer = !m_spellInfo.HasAttribute(SpellAttr3.IgnoreResurrectionTimer);
Pet pet = target.GetPet();
if (pet)
{
CharmInfo charmInfo = pet.GetCharmInfo();
if (charmInfo != null)
resurrectRequest.PetNumber = charmInfo.GetPetNumber();
}
resurrectRequest.SpellID = m_spellInfo.Id;
target.SendPacket(resurrectRequest);
}
void TakeCastItem()
{
if (m_CastItem == null || !m_caster.IsTypeId(TypeId.Player))
return;
// not remove cast item at triggered spell (equipping, weapon damage, etc)
if (Convert.ToBoolean(_triggeredCastFlags & TriggerCastFlags.IgnoreCastItem))
return;
ItemTemplate proto = m_CastItem.GetTemplate();
if (proto == null)
{
// This code is to avoid a crash
// I'm not sure, if this is really an error, but I guess every item needs a prototype
Log.outError(LogFilter.Spells, "Cast item has no item prototype {0}", m_CastItem.GetGUID().ToString());
return;
}
bool expendable = false;
bool withoutCharges = false;
foreach (ItemEffectRecord itemEffect in m_CastItem.GetEffects())
{
if (itemEffect.LegacySlotIndex >= m_CastItem.m_itemData.SpellCharges.GetSize())
continue;
// item has limited charges
if (itemEffect.Charges != 0)
{
if (itemEffect.Charges < 0)
expendable = true;
int charges = m_CastItem.GetSpellCharges(itemEffect.LegacySlotIndex);
// item has charges left
if (charges != 0)
{
if (charges > 0)
--charges;
else
++charges;
if (proto.GetMaxStackSize() == 1)
m_CastItem.SetSpellCharges(itemEffect.LegacySlotIndex, charges);
m_CastItem.SetState(ItemUpdateState.Changed, m_caster.ToPlayer());
}
// all charges used
withoutCharges = (charges == 0);
}
}
if (expendable && withoutCharges)
{
uint count = 1;
m_caster.ToPlayer().DestroyItemCount(m_CastItem, ref count, true);
// prevent crash at access to deleted m_targets.GetItemTarget
if (m_CastItem == m_targets.GetItemTarget())
m_targets.SetItemTarget(null);
m_CastItem = null;
m_castItemGUID.Clear();
m_castItemEntry = 0;
}
}
void TakePower()
{
// GameObjects don't use power
Unit unitCaster = m_caster.ToUnit();
if (!unitCaster)
return;
if (m_CastItem != null || m_triggeredByAuraSpell != null)
return;
//Don't take power if the spell is cast while .cheat power is enabled.
if (unitCaster.IsTypeId(TypeId.Player))
{
if (unitCaster.ToPlayer().GetCommandStatus(PlayerCommandStates.Power))
return;
}
foreach (SpellPowerCost cost in m_powerCost)
{
bool hit = true;
if (unitCaster.IsTypeId(TypeId.Player))
{
if (cost.Power == PowerType.Rage || cost.Power == PowerType.Energy || cost.Power == PowerType.Runes)
{
ObjectGuid targetGUID = m_targets.GetUnitTargetGUID();
if (!targetGUID.IsEmpty())
{
var ihit = m_UniqueTargetInfo.FirstOrDefault(targetInfo => targetInfo.TargetGUID == targetGUID && targetInfo.MissCondition != SpellMissInfo.None);
if (ihit != null)
{
hit = false;
//lower spell cost on fail (by talent aura)
Player modOwner = unitCaster.GetSpellModOwner();
if (modOwner != null)
modOwner.ApplySpellMod(m_spellInfo, SpellModOp.PowerCostOnMiss, ref cost.Amount);
}
}
}
}
if (cost.Power == PowerType.Runes)
{
TakeRunePower(hit);
continue;
}
if (cost.Amount == 0)
continue;
// health as power used
if (cost.Power == PowerType.Health)
{
unitCaster.ModifyHealth(-cost.Amount);
continue;
}
if (cost.Power >= PowerType.Max)
{
Log.outError(LogFilter.Spells, "Spell.TakePower: Unknown power type '{0}'", cost.Power);
continue;
}
unitCaster.ModifyPower(cost.Power, -cost.Amount);
}
}
SpellCastResult CheckRuneCost()
{
int runeCost = m_powerCost.Sum(cost => cost.Power == PowerType.Runes ? cost.Amount : 0);
if (runeCost == 0)
return SpellCastResult.SpellCastOk;
Player player = m_caster.ToPlayer();
if (!player)
return SpellCastResult.SpellCastOk;
if (player.GetClass() != Class.Deathknight)
return SpellCastResult.SpellCastOk;
int readyRunes = 0;
for (byte i = 0; i < player.GetMaxPower(PowerType.Runes); ++i)
if (player.GetRuneCooldown(i) == 0)
++readyRunes;
if (readyRunes < runeCost)
return SpellCastResult.NoPower; // not sure if result code is correct
return SpellCastResult.SpellCastOk;
}
void TakeRunePower(bool didHit)
{
if (!m_caster.IsTypeId(TypeId.Player) || m_caster.ToPlayer().GetClass() != Class.Deathknight)
return;
Player player = m_caster.ToPlayer();
m_runesState = player.GetRunesState(); // store previous state
int runeCost = m_powerCost.Sum(cost => cost.Power == PowerType.Runes ? cost.Amount : 0);
for (byte i = 0; i < player.GetMaxPower(PowerType.Runes); ++i)
{
if (player.GetRuneCooldown(i) == 0 && runeCost > 0)
{
player.SetRuneCooldown(i, didHit ? player.GetRuneBaseCooldown() : RuneCooldowns.Miss);
--runeCost;
}
}
}
void TakeReagents()
{
if (!m_caster.IsTypeId(TypeId.Player))
return;
// do not take reagents for these item casts
if (m_CastItem != null && m_CastItem.GetTemplate().HasFlag(ItemFlags.NoReagentCost))
return;
Player p_caster = m_caster.ToPlayer();
if (p_caster.CanNoReagentCast(m_spellInfo))
return;
for (int x = 0; x < SpellConst.MaxReagents; ++x)
{
if (m_spellInfo.Reagent[x] <= 0)
continue;
uint itemid = (uint)m_spellInfo.Reagent[x];
uint itemcount = m_spellInfo.ReagentCount[x];
// if CastItem is also spell reagent
if (m_CastItem != null && m_CastItem.GetEntry() == itemid)
{
foreach (ItemEffectRecord itemEffect in m_CastItem.GetEffects())
{
if (itemEffect.LegacySlotIndex >= m_CastItem.m_itemData.SpellCharges.GetSize())
continue;
// CastItem will be used up and does not count as reagent
int charges = m_CastItem.GetSpellCharges(itemEffect.LegacySlotIndex);
if (itemEffect.Charges < 0 && Math.Abs(charges) < 2)
{
++itemcount;
break;
}
}
m_CastItem = null;
m_castItemGUID.Clear();
m_castItemEntry = 0;
}
// if GetItemTarget is also spell reagent
if (m_targets.GetItemTargetEntry() == itemid)
m_targets.SetItemTarget(null);
p_caster.DestroyItemCount(itemid, itemcount, true);
}
foreach (var reagentsCurrency in m_spellInfo.ReagentsCurrency)
p_caster.ModifyCurrency((CurrencyTypes)reagentsCurrency.CurrencyTypesID, -reagentsCurrency.CurrencyCount, false, true);
}
void HandleThreatSpells()
{
// wild GameObject spells don't cause threat
Unit unitCaster = (m_originalCaster ? m_originalCaster : m_caster.ToUnit());
if (unitCaster == null)
return;
if (m_UniqueTargetInfo.Empty())
return;
if (!m_spellInfo.HasInitialAggro())
return;
float threat = 0.0f;
SpellThreatEntry threatEntry = Global.SpellMgr.GetSpellThreatEntry(m_spellInfo.Id);
if (threatEntry != null)
{
if (threatEntry.apPctMod != 0.0f)
threat += threatEntry.apPctMod * unitCaster.GetTotalAttackPowerValue(WeaponAttackType.BaseAttack);
threat += threatEntry.flatMod;
}
else if (!m_spellInfo.HasAttribute(SpellCustomAttributes.NoInitialThreat))
threat += m_spellInfo.SpellLevel;
// past this point only multiplicative effects occur
if (threat == 0.0f)
return;
// since 2.0.1 threat from positive effects also is distributed among all targets, so the overall caused threat is at most the defined bonus
threat /= m_UniqueTargetInfo.Count;
foreach (var ihit in m_UniqueTargetInfo)
{
float threatToAdd = threat;
if (ihit.MissCondition != SpellMissInfo.None)
threatToAdd = 0.0f;
Unit target = Global.ObjAccessor.GetUnit(unitCaster, ihit.TargetGUID);
if (target == null)
continue;
// positive spells distribute threat among all units that are in combat with target, like healing
if (IsPositive())
target.GetThreatManager().ForwardThreatForAssistingMe(unitCaster, threatToAdd, m_spellInfo);
// for negative spells threat gets distributed among affected targets
else
{
if (!target.CanHaveThreatList())
continue;
target.GetThreatManager().AddThreat(unitCaster, threatToAdd, m_spellInfo, true);
}
}
Log.outDebug(LogFilter.Spells, "Spell {0}, added an additional {1} threat for {2} {3} target(s)", m_spellInfo.Id, threat, IsPositive() ? "assisting" : "harming", m_UniqueTargetInfo.Count);
}
public void HandleEffects(Unit pUnitTarget, Item pItemTarget, GameObject pGOTarget, SpellEffectInfo spellEffectInfo, SpellEffectHandleMode mode)
{
effectHandleMode = mode;
unitTarget = pUnitTarget;
itemTarget = pItemTarget;
gameObjTarget = pGOTarget;
destTarget = m_destTargets[spellEffectInfo.EffectIndex].Position;
effectInfo = spellEffectInfo;
unitCaster = m_originalCaster ? m_originalCaster : m_caster.ToUnit();
damage = CalculateDamage(spellEffectInfo, unitTarget, out _variance);
bool preventDefault = CallScriptEffectHandlers(spellEffectInfo.EffectIndex, mode);
if (!preventDefault)
Global.SpellMgr.GetSpellEffectHandler(spellEffectInfo.Effect).Invoke(this);
}
public static Spell ExtractSpellFromEvent(BasicEvent basicEvent)
{
SpellEvent spellEvent = (SpellEvent)basicEvent;
if (spellEvent != null)
return spellEvent.GetSpell();
return null;
}
public SpellCastResult CheckCast(bool strict)
{
int param1 = 0, param2 = 0;
return CheckCast(strict, ref param1, ref param2);
}
public SpellCastResult CheckCast(bool strict, ref int param1, ref int param2)
{
SpellCastResult castResult;
// check death state
if (m_caster.ToUnit() && !m_caster.ToUnit().IsAlive() && !m_spellInfo.IsPassive() && !(m_spellInfo.HasAttribute(SpellAttr0.CastableWhileDead) || (IsTriggered() && m_triggeredByAuraSpell == null)))
return SpellCastResult.CasterDead;
// Prevent cheating in case the player has an immunity effect and tries to interact with a non-allowed gameobject. The error message is handled by the client so we don't report anything here
if (m_caster.IsPlayer() && m_targets.GetGOTarget() != null)
{
if (m_targets.GetGOTarget().GetGoInfo().GetNoDamageImmune() != 0 && m_caster.ToUnit().HasUnitFlag(UnitFlags.Immune))
return SpellCastResult.DontReport;
}
// check cooldowns to prevent cheating
if (!m_spellInfo.IsPassive())
{
Player playerCaster = m_caster.ToPlayer();
if (playerCaster != null)
{
//can cast triggered (by aura only?) spells while have this flag
if (!_triggeredCastFlags.HasAnyFlag(TriggerCastFlags.IgnoreCasterAurastate))
{
// These two auras check SpellFamilyName defined by db2 class data instead of current spell SpellFamilyName
if (playerCaster.HasAuraType(AuraType.DisableCastingExceptAbilities)
&& !m_spellInfo.HasAttribute(SpellAttr0.ReqAmmo)
&& !m_spellInfo.HasEffect(SpellEffectName.Attack)
&& !m_spellInfo.HasAttribute(SpellAttr12.IgnoreCastingDisabled)
&& !playerCaster.HasAuraTypeWithFamilyFlags(AuraType.DisableCastingExceptAbilities, CliDB.ChrClassesStorage.LookupByKey(playerCaster.GetClass()).SpellClassSet, m_spellInfo.SpellFamilyFlags))
return SpellCastResult.CantDoThatRightNow;
if (playerCaster.HasAuraType(AuraType.DisableAttackingExceptAbilities))
{
if (!playerCaster.HasAuraTypeWithFamilyFlags(AuraType.DisableAttackingExceptAbilities, CliDB.ChrClassesStorage.LookupByKey(playerCaster.GetClass()).SpellClassSet, m_spellInfo.SpellFamilyFlags))
{
if (m_spellInfo.HasAttribute(SpellAttr0.ReqAmmo)
|| m_spellInfo.IsNextMeleeSwingSpell()
|| m_spellInfo.HasAttribute(SpellAttr1.MeleeCombatStart)
|| m_spellInfo.HasAttribute(SpellAttr2.Unk20)
|| m_spellInfo.HasEffect(SpellEffectName.Attack)
|| m_spellInfo.HasEffect(SpellEffectName.NormalizedWeaponDmg)
|| m_spellInfo.HasEffect(SpellEffectName.WeaponDamageNoSchool)
|| m_spellInfo.HasEffect(SpellEffectName.WeaponPercentDamage)
|| m_spellInfo.HasEffect(SpellEffectName.WeaponDamage))
return SpellCastResult.CantDoThatRightNow;
}
}
}
// check if we are using a potion in combat for the 2nd+ time. Cooldown is added only after caster gets out of combat
if (!IsIgnoringCooldowns() && playerCaster.GetLastPotionId() != 0 && m_CastItem && (m_CastItem.IsPotion() || m_spellInfo.IsCooldownStartedOnEvent()))
return SpellCastResult.NotReady;
}
if (m_caster.IsUnit() && !m_caster.ToUnit().GetSpellHistory().IsReady(m_spellInfo, m_castItemEntry, IsIgnoringCooldowns()))
{
if (m_triggeredByAuraSpell != null)
return SpellCastResult.DontReport;
else
return SpellCastResult.NotReady;
}
}
if (m_spellInfo.HasAttribute(SpellAttr7.IsCheatSpell) && m_caster.IsUnit() && !m_caster.ToUnit().HasUnitFlag2(UnitFlags2.AllowCheatSpells))
{
m_customError = SpellCustomErrors.GmOnly;
return SpellCastResult.CustomError;
}
// Check global cooldown
if (strict && !Convert.ToBoolean(_triggeredCastFlags & TriggerCastFlags.IgnoreGCD) && HasGlobalCooldown())
return !m_spellInfo.HasAttribute(SpellAttr0.DisabledWhileActive) ? SpellCastResult.NotReady : SpellCastResult.DontReport;
// only triggered spells can be processed an ended Battleground
if (!IsTriggered() && m_caster.IsTypeId(TypeId.Player))
{
Battleground bg = m_caster.ToPlayer().GetBattleground();
if (bg)
if (bg.GetStatus() == BattlegroundStatus.WaitLeave)
return SpellCastResult.DontReport;
}
if (m_caster.IsTypeId(TypeId.Player) && Global.VMapMgr.IsLineOfSightCalcEnabled())
{
if (m_spellInfo.HasAttribute(SpellAttr0.OutdoorsOnly) && !m_caster.IsOutdoors())
return SpellCastResult.OnlyOutdoors;
if (m_spellInfo.HasAttribute(SpellAttr0.IndoorsOnly) && m_caster.IsOutdoors())
return SpellCastResult.OnlyIndoors;
}
Unit unitCaster = m_caster.ToUnit();
if (unitCaster != null)
{
// only check at first call, Stealth auras are already removed at second call
// for now, ignore triggered spells
if (strict && !_triggeredCastFlags.HasFlag(TriggerCastFlags.IgnoreShapeshift))
{
bool checkForm = true;
// Ignore form req aura
var ignore = unitCaster.GetAuraEffectsByType(AuraType.ModIgnoreShapeshift);
foreach (var aurEff in ignore)
{
if (!aurEff.IsAffectingSpell(m_spellInfo))
continue;
checkForm = false;
break;
}
if (checkForm)
{
// Cannot be used in this stance/form
SpellCastResult shapeError = m_spellInfo.CheckShapeshift(unitCaster.GetShapeshiftForm());
if (shapeError != SpellCastResult.SpellCastOk)
return shapeError;
if (m_spellInfo.HasAttribute(SpellAttr0.OnlyStealthed) && !unitCaster.HasStealthAura())
return SpellCastResult.OnlyStealthed;
}
}
bool reqCombat = true;
var stateAuras = unitCaster.GetAuraEffectsByType(AuraType.AbilityIgnoreAurastate);
foreach (var aura in stateAuras)
{
if (aura.IsAffectingSpell(m_spellInfo))
{
m_needComboPoints = false;
if (aura.GetMiscValue() == 1)
{
reqCombat = false;
break;
}
}
}
// caster state requirements
// not for triggered spells (needed by execute)
if (!_triggeredCastFlags.HasFlag(TriggerCastFlags.IgnoreCasterAurastate))
{
if (m_spellInfo.CasterAuraState != 0 && !unitCaster.HasAuraState(m_spellInfo.CasterAuraState, m_spellInfo, unitCaster))
return SpellCastResult.CasterAurastate;
if (m_spellInfo.ExcludeCasterAuraState != 0 && unitCaster.HasAuraState(m_spellInfo.ExcludeCasterAuraState, m_spellInfo, unitCaster))
return SpellCastResult.CasterAurastate;
// Note: spell 62473 requres casterAuraSpell = triggering spell
if (m_spellInfo.CasterAuraSpell != 0 && !unitCaster.HasAura(m_spellInfo.CasterAuraSpell))
return SpellCastResult.CasterAurastate;
if (m_spellInfo.ExcludeCasterAuraSpell != 0 && unitCaster.HasAura(m_spellInfo.ExcludeCasterAuraSpell))
return SpellCastResult.CasterAurastate;
if (reqCombat && unitCaster.IsInCombat() && !m_spellInfo.CanBeUsedInCombat())
return SpellCastResult.AffectingCombat;
}
// cancel autorepeat spells if cast start when moving
// (not wand currently autorepeat cast delayed to moving stop anyway in spell update code)
// Do not cancel spells which are affected by a SPELL_AURA_CAST_WHILE_WALKING effect
if (unitCaster.IsPlayer() && unitCaster.ToPlayer().IsMoving()
&& (!unitCaster.IsCharmed() || !unitCaster.GetCharmerGUID().IsCreature())
&& !unitCaster.CanCastSpellWhileMoving(m_spellInfo))
{
// skip stuck spell to allow use it in falling case and apply spell limitations at movement
if ((!unitCaster.HasUnitMovementFlag(MovementFlag.FallingFar) || !m_spellInfo.HasEffect(SpellEffectName.Stuck)) &&
(IsAutoRepeat() || m_spellInfo.HasAuraInterruptFlag(SpellAuraInterruptFlags.Standing)))
return SpellCastResult.Moving;
}
// Check vehicle flags
if (!Convert.ToBoolean(_triggeredCastFlags & TriggerCastFlags.IgnoreCasterMountedOrOnVehicle))
{
SpellCastResult vehicleCheck = m_spellInfo.CheckVehicle(unitCaster);
if (vehicleCheck != SpellCastResult.SpellCastOk)
return vehicleCheck;
}
}
// check spell cast conditions from database
{
ConditionSourceInfo condInfo = new(m_caster, m_targets.GetObjectTarget());
if (!Global.ConditionMgr.IsObjectMeetingNotGroupedConditions(ConditionSourceType.Spell, m_spellInfo.Id, condInfo))
{
// mLastFailedCondition can be NULL if there was an error processing the condition in Condition.Meets (i.e. wrong data for ConditionTarget or others)
if (condInfo.mLastFailedCondition != null && condInfo.mLastFailedCondition.ErrorType != 0)
{
if (condInfo.mLastFailedCondition.ErrorType == (uint)SpellCastResult.CustomError)
m_customError = (SpellCustomErrors)condInfo.mLastFailedCondition.ErrorTextId;
return (SpellCastResult)condInfo.mLastFailedCondition.ErrorType;
}
if (condInfo.mLastFailedCondition == null || condInfo.mLastFailedCondition.ConditionTarget == 0)
return SpellCastResult.CasterAurastate;
return SpellCastResult.BadTargets;
}
}
// Don't check explicit target for passive spells (workaround) (check should be skipped only for learn case)
// those spells may have incorrect target entries or not filled at all (for example 15332)
// such spells when learned are not targeting anyone using targeting system, they should apply directly to caster instead
// also, such casts shouldn't be sent to client
if (!(m_spellInfo.IsPassive() && (m_targets.GetUnitTarget() == null || m_targets.GetUnitTarget() == m_caster)))
{
// Check explicit target for m_originalCaster - todo: get rid of such workarounds
WorldObject caster = m_caster;
// in case of gameobjects like traps, we need the gameobject itself to check target validity
// otherwise, if originalCaster is far away and cannot detect the target, the trap would not hit the target
if (m_originalCaster != null && !caster.IsGameObject())
caster = m_originalCaster;
castResult = m_spellInfo.CheckExplicitTarget(caster, m_targets.GetObjectTarget(), m_targets.GetItemTarget());
if (castResult != SpellCastResult.SpellCastOk)
return castResult;
}
Unit unitTarget = m_targets.GetUnitTarget();
if (unitTarget != null)
{
castResult = m_spellInfo.CheckTarget(m_caster, unitTarget, m_caster.IsGameObject()); // skip stealth checks for GO casts
if (castResult != SpellCastResult.SpellCastOk)
return castResult;
// If it's not a melee spell, check if vision is obscured by SPELL_AURA_INTERFERE_TARGETTING
if (m_spellInfo.DmgClass != SpellDmgClass.Melee)
{
Unit unitCaster1 = m_caster.ToUnit();
if (unitCaster1 != null)
{
foreach (var auraEffect in unitCaster1.GetAuraEffectsByType(AuraType.InterfereTargetting))
if (!unitCaster1.IsFriendlyTo(auraEffect.GetCaster()) && !unitTarget.HasAura(auraEffect.GetId(), auraEffect.GetCasterGUID()))
return SpellCastResult.VisionObscured;
foreach (var auraEffect in unitTarget.GetAuraEffectsByType(AuraType.InterfereTargetting))
if (!unitCaster1.IsFriendlyTo(auraEffect.GetCaster()) && (!unitTarget.HasAura(auraEffect.GetId(), auraEffect.GetCasterGUID()) || !unitCaster1.HasAura(auraEffect.GetId(), auraEffect.GetCasterGUID())))
return SpellCastResult.VisionObscured;
}
}
if (unitTarget != m_caster)
{
// Must be behind the target
if (m_spellInfo.HasAttribute(SpellCustomAttributes.ReqCasterBehindTarget) && unitTarget.HasInArc(MathFunctions.PI, m_caster))
return SpellCastResult.NotBehind;
// Target must be facing you
if (m_spellInfo.HasAttribute(SpellCustomAttributes.ReqTargetFacingCaster) && !unitTarget.HasInArc(MathFunctions.PI, m_caster))
return SpellCastResult.NotInfront;
// Ignore LOS for gameobjects casts
if (!m_caster.IsGameObject())
{
WorldObject losTarget = m_caster;
if (IsTriggered() && m_triggeredByAuraSpell != null)
{
DynamicObject dynObj = m_caster.ToUnit().GetDynObject(m_triggeredByAuraSpell.Id);
if (dynObj)
losTarget = dynObj;
}
if (!m_spellInfo.HasAttribute(SpellAttr2.CanTargetNotInLos) && !m_spellInfo.HasAttribute(SpellAttr5.AlwaysAoeLineOfSight) && !Global.DisableMgr.IsDisabledFor(DisableType.Spell, m_spellInfo.Id, null, (byte)DisableFlags.SpellLOS)
&& !unitTarget.IsWithinLOSInMap(losTarget, LineOfSightChecks.All, ModelIgnoreFlags.M2))
return SpellCastResult.LineOfSight;
}
}
}
// Check for line of sight for spells with dest
if (m_targets.HasDst())
{
float x, y, z;
m_targets.GetDstPos().GetPosition(out x, out y, out z);
if (!m_spellInfo.HasAttribute(SpellAttr2.CanTargetNotInLos) && !m_spellInfo.HasAttribute(SpellAttr5.AlwaysAoeLineOfSight) && !Global.DisableMgr.IsDisabledFor(DisableType.Spell, m_spellInfo.Id, null, (byte)DisableFlags.SpellLOS)
&& !m_caster.IsWithinLOS(x, y, z, LineOfSightChecks.All, ModelIgnoreFlags.M2))
return SpellCastResult.LineOfSight;
}
// check pet presence
if (unitCaster != null)
{
foreach (var spellEffectInfo in m_spellInfo.GetEffects())
{
if (spellEffectInfo.TargetA.GetTarget() == Targets.UnitPet)
{
if (unitCaster.GetGuardianPet() == null)
{
if (m_triggeredByAuraSpell != null) // not report pet not existence for triggered spells
return SpellCastResult.DontReport;
else
return SpellCastResult.NoPet;
}
break;
}
}
}
// Spell casted only on Battleground
if (m_spellInfo.HasAttribute(SpellAttr3.Battleground) && m_caster.IsTypeId(TypeId.Player))
if (!m_caster.ToPlayer().InBattleground())
return SpellCastResult.OnlyBattlegrounds;
// do not allow spells to be cast in arenas or rated Battlegrounds
Player player = m_caster.ToPlayer();
if (player != null)
if (player.InArena()/* || player.InRatedBattleground() NYI*/)
{
castResult = CheckArenaAndRatedBattlegroundCastRules();
if (castResult != SpellCastResult.SpellCastOk)
return castResult;
}
// zone check
if (!m_caster.IsPlayer() || !m_caster.ToPlayer().IsGameMaster())
{
uint zone, area;
m_caster.GetZoneAndAreaId(out zone, out area);
SpellCastResult locRes = m_spellInfo.CheckLocation(m_caster.GetMapId(), zone, area, m_caster.ToPlayer());
if (locRes != SpellCastResult.SpellCastOk)
return locRes;
}
// not let players cast spells at mount (and let do it to creatures)
if (!_triggeredCastFlags.HasFlag(TriggerCastFlags.IgnoreCasterMountedOrOnVehicle))
{
if (m_caster.IsPlayer() && m_caster.ToPlayer().IsMounted() && !m_spellInfo.IsPassive() && !m_spellInfo.HasAttribute(SpellAttr0.CastableWhileMounted))
{
if (m_caster.ToPlayer().IsInFlight())
return SpellCastResult.NotOnTaxi;
else
return SpellCastResult.NotMounted;
}
}
// check spell focus object
if (m_spellInfo.RequiresSpellFocus != 0)
{
if (!m_caster.IsUnit() || !m_caster.ToUnit().HasAuraTypeWithMiscvalue(AuraType.ProvideSpellFocus, (int)m_spellInfo.RequiresSpellFocus))
{
focusObject = SearchSpellFocus();
if (!focusObject)
return SpellCastResult.RequiresSpellFocus;
}
}
// always (except passive spells) check items (focus object can be required for any type casts)
if (!m_spellInfo.IsPassive())
{
castResult = CheckItems(ref param1, ref param2);
if (castResult != SpellCastResult.SpellCastOk)
return castResult;
}
// Triggered spells also have range check
// @todo determine if there is some flag to enable/disable the check
castResult = CheckRange(strict);
if (castResult != SpellCastResult.SpellCastOk)
return castResult;
if (!Convert.ToBoolean(_triggeredCastFlags & TriggerCastFlags.IgnorePowerAndReagentCost))
{
castResult = CheckPower();
if (castResult != SpellCastResult.SpellCastOk)
return castResult;
}
if (!Convert.ToBoolean(_triggeredCastFlags & TriggerCastFlags.IgnoreCasterAuras))
{
castResult = CheckCasterAuras(ref param1);
if (castResult != SpellCastResult.SpellCastOk)
return castResult;
}
// script hook
castResult = CallScriptCheckCastHandlers();
if (castResult != SpellCastResult.SpellCastOk)
return castResult;
foreach (var spellEffectInfo in m_spellInfo.GetEffects())
{
// for effects of spells that have only one target
switch (spellEffectInfo.Effect)
{
case SpellEffectName.Dummy:
{
if (m_spellInfo.Id == 19938) // Awaken Peon
{
Unit unit = m_targets.GetUnitTarget();
if (unit == null || !unit.HasAura(17743))
return SpellCastResult.BadTargets;
}
else if (m_spellInfo.Id == 31789) // Righteous Defense
{
if (!m_caster.IsTypeId(TypeId.Player))
return SpellCastResult.DontReport;
Unit target = m_targets.GetUnitTarget();
if (target == null || !target.IsFriendlyTo(m_caster) || target.GetAttackers().Empty())
return SpellCastResult.BadTargets;
}
break;
}
case SpellEffectName.LearnSpell:
{
if (spellEffectInfo.TargetA.GetTarget() != Targets.UnitPet)
break;
Pet pet = m_caster.ToPlayer().GetPet();
if (pet == null)
return SpellCastResult.NoPet;
SpellInfo learn_spellproto = Global.SpellMgr.GetSpellInfo(spellEffectInfo.TriggerSpell, Difficulty.None);
if (learn_spellproto == null)
return SpellCastResult.NotKnown;
if (m_spellInfo.SpellLevel > pet.GetLevel())
return SpellCastResult.Lowlevel;
break;
}
case SpellEffectName.UnlockGuildVaultTab:
{
if (!m_caster.IsTypeId(TypeId.Player))
return SpellCastResult.BadTargets;
var guild = m_caster.ToPlayer().GetGuild();
if (guild != null)
if (guild.GetLeaderGUID() != m_caster.ToPlayer().GetGUID())
return SpellCastResult.CantDoThatRightNow;
break;
}
case SpellEffectName.LearnPetSpell:
{
// check target only for unit target case
Unit target = m_targets.GetUnitTarget();
if (target != null)
{
if (!m_caster.IsTypeId(TypeId.Player))
return SpellCastResult.BadTargets;
Pet pet = target.ToPet();
if (pet == null || pet.GetOwner() != m_caster)
return SpellCastResult.BadTargets;
SpellInfo learn_spellproto = Global.SpellMgr.GetSpellInfo(spellEffectInfo.TriggerSpell, Difficulty.None);
if (learn_spellproto == null)
return SpellCastResult.NotKnown;
if (m_spellInfo.SpellLevel > pet.GetLevel())
return SpellCastResult.Lowlevel;
}
break;
}
case SpellEffectName.ApplyGlyph:
{
if (!m_caster.IsTypeId(TypeId.Player))
return SpellCastResult.GlyphNoSpec;
Player caster = m_caster.ToPlayer();
if (!caster.HasSpell(m_misc.SpellId))
return SpellCastResult.NotKnown;
uint glyphId = (uint)spellEffectInfo.MiscValue;
if (glyphId != 0)
{
GlyphPropertiesRecord glyphProperties = CliDB.GlyphPropertiesStorage.LookupByKey(glyphId);
if (glyphProperties == null)
return SpellCastResult.InvalidGlyph;
List<uint> glyphBindableSpells = Global.DB2Mgr.GetGlyphBindableSpells(glyphId);
if (glyphBindableSpells.Empty())
return SpellCastResult.InvalidGlyph;
if (!glyphBindableSpells.Contains(m_misc.SpellId))
return SpellCastResult.InvalidGlyph;
List<uint> glyphRequiredSpecs = Global.DB2Mgr.GetGlyphRequiredSpecs(glyphId);
if (!glyphRequiredSpecs.Empty())
{
if (caster.GetPrimarySpecialization() == 0)
return SpellCastResult.GlyphNoSpec;
if (!glyphRequiredSpecs.Contains(caster.GetPrimarySpecialization()))
return SpellCastResult.GlyphInvalidSpec;
}
uint replacedGlyph = 0;
foreach (uint activeGlyphId in caster.GetGlyphs(caster.GetActiveTalentGroup()))
{
List<uint> activeGlyphBindableSpells = Global.DB2Mgr.GetGlyphBindableSpells(activeGlyphId);
if (!activeGlyphBindableSpells.Empty())
{
if (activeGlyphBindableSpells.Contains(m_misc.SpellId))
{
replacedGlyph = activeGlyphId;
break;
}
}
}
foreach (uint activeGlyphId in caster.GetGlyphs(caster.GetActiveTalentGroup()))
{
if (activeGlyphId == replacedGlyph)
continue;
if (activeGlyphId == glyphId)
return SpellCastResult.UniqueGlyph;
if (CliDB.GlyphPropertiesStorage.LookupByKey(activeGlyphId).GlyphExclusiveCategoryID == glyphProperties.GlyphExclusiveCategoryID)
return SpellCastResult.GlyphExclusiveCategory;
}
}
break;
}
case SpellEffectName.FeedPet:
{
if (!m_caster.IsTypeId(TypeId.Player))
return SpellCastResult.BadTargets;
Item foodItem = m_targets.GetItemTarget();
if (!foodItem)
return SpellCastResult.BadTargets;
Pet pet = m_caster.ToPlayer().GetPet();
if (!pet)
return SpellCastResult.NoPet;
if (!pet.HaveInDiet(foodItem.GetTemplate()))
return SpellCastResult.WrongPetFood;
if (foodItem.GetTemplate().GetBaseItemLevel() + 30 <= pet.GetLevel())
return SpellCastResult.FoodLowlevel;
if (m_caster.ToPlayer().IsInCombat() || pet.IsInCombat())
return SpellCastResult.AffectingCombat;
break;
}
case SpellEffectName.Charge:
{
if (unitCaster == null)
return SpellCastResult.BadTargets;
if (!_triggeredCastFlags.HasAnyFlag(TriggerCastFlags.IgnoreCasterAuras) && unitCaster.HasUnitState(UnitState.Root))
return SpellCastResult.Rooted;
if (GetSpellInfo().NeedsExplicitUnitTarget())
{
Unit target = m_targets.GetUnitTarget();
if (target == null)
return SpellCastResult.DontReport;
// first we must check to see if the target is in LoS. A path can usually be built but LoS matters for charge spells
if (!target.IsWithinLOSInMap(unitCaster)) //Do full LoS/Path check. Don't exclude m2
return SpellCastResult.LineOfSight;
float objSize = target.GetCombatReach();
float range = m_spellInfo.GetMaxRange(true, unitCaster, this) * 1.5f + objSize; // can't be overly strict
m_preGeneratedPath = new(unitCaster);
m_preGeneratedPath.SetPathLengthLimit(range);
// first try with raycast, if it fails fall back to normal path
bool result = m_preGeneratedPath.CalculatePath(target.GetPositionX(), target.GetPositionY(), target.GetPositionZ(), false, false);
if (m_preGeneratedPath.GetPathType().HasAnyFlag(PathType.Short))
return SpellCastResult.NoPath;
else if (!result || m_preGeneratedPath.GetPathType().HasAnyFlag(PathType.NoPath | PathType.Incomplete))
return SpellCastResult.NoPath;
else if (m_preGeneratedPath.IsInvalidDestinationZ(target)) // Check position z, if not in a straight line
return SpellCastResult.NoPath;
m_preGeneratedPath.ShortenPathUntilDist(target, objSize); //move back
}
break;
}
case SpellEffectName.Skinning:
{
if (!m_caster.IsTypeId(TypeId.Player) || m_targets.GetUnitTarget() == null || !m_targets.GetUnitTarget().IsTypeId(TypeId.Unit))
return SpellCastResult.BadTargets;
if (!m_targets.GetUnitTarget().HasUnitFlag(UnitFlags.Skinnable))
return SpellCastResult.TargetUnskinnable;
Creature creature = m_targets.GetUnitTarget().ToCreature();
if (!creature.IsCritter() && !creature.loot.IsLooted())
return SpellCastResult.TargetNotLooted;
SkillType skill = creature.GetCreatureTemplate().GetRequiredLootSkill();
ushort skillValue = m_caster.ToPlayer().GetSkillValue(skill);
uint TargetLevel = m_targets.GetUnitTarget().GetLevelForTarget(m_caster);
int ReqValue = (int)(skillValue < 100 ? (TargetLevel - 10) * 10 : TargetLevel * 5);
if (ReqValue > skillValue)
return SpellCastResult.LowCastlevel;
break;
}
case SpellEffectName.OpenLock:
{
if (spellEffectInfo.TargetA.GetTarget() != Targets.GameobjectTarget &&
spellEffectInfo.TargetA.GetTarget() != Targets.GameobjectItemTarget)
break;
if (!m_caster.IsTypeId(TypeId.Player) // only players can open locks, gather etc.
// we need a go target in case of TARGET_GAMEOBJECT_TARGET
|| (spellEffectInfo.TargetA.GetTarget() == Targets.GameobjectTarget && m_targets.GetGOTarget() == null))
return SpellCastResult.BadTargets;
Item pTempItem = null;
if (Convert.ToBoolean(m_targets.GetTargetMask() & SpellCastTargetFlags.TradeItem))
{
TradeData pTrade = m_caster.ToPlayer().GetTradeData();
if (pTrade != null)
pTempItem = pTrade.GetTraderData().GetItem(TradeSlots.NonTraded);
}
else if (Convert.ToBoolean(m_targets.GetTargetMask() & SpellCastTargetFlags.Item))
pTempItem = m_caster.ToPlayer().GetItemByGuid(m_targets.GetItemTargetGUID());
// we need a go target, or an openable item target in case of TARGET_GAMEOBJECT_ITEM_TARGET
if (spellEffectInfo.TargetA.GetTarget() == Targets.GameobjectItemTarget &&
m_targets.GetGOTarget() == null && (pTempItem == null || pTempItem.GetTemplate().GetLockID() == 0 || !pTempItem.IsLocked()))
return SpellCastResult.BadTargets;
if (m_spellInfo.Id != 1842 || (m_targets.GetGOTarget() != null &&
m_targets.GetGOTarget().GetGoInfo().type != GameObjectTypes.Trap))
if (m_caster.ToPlayer().InBattleground() && // In Battlegroundplayers can use only flags and banners
!m_caster.ToPlayer().CanUseBattlegroundObject(m_targets.GetGOTarget()))
return SpellCastResult.TryAgain;
// get the lock entry
uint lockId = 0;
GameObject go = m_targets.GetGOTarget();
Item itm = m_targets.GetItemTarget();
if (go != null)
{
lockId = go.GetGoInfo().GetLockId();
if (lockId == 0)
return SpellCastResult.BadTargets;
}
else if (itm != null)
lockId = itm.GetTemplate().GetLockID();
SkillType skillId = SkillType.None;
int reqSkillValue = 0;
int skillValue = 0;
// check lock compatibility
SpellCastResult res = CanOpenLock(spellEffectInfo, lockId, ref skillId, ref reqSkillValue, ref skillValue);
if (res != SpellCastResult.SpellCastOk)
return res;
break;
}
case SpellEffectName.ResurrectPet:
{
if (unitCaster == null)
return SpellCastResult.BadTargets;
Creature pet = unitCaster.GetGuardianPet();
if (pet != null && pet.IsAlive())
return SpellCastResult.AlreadyHaveSummon;
break;
}
// This is generic summon effect
case SpellEffectName.Summon:
{
if (unitCaster == null)
break;
var SummonProperties = CliDB.SummonPropertiesStorage.LookupByKey(spellEffectInfo.MiscValueB);
if (SummonProperties == null)
break;
switch (SummonProperties.Control)
{
case SummonCategory.Pet:
if (!m_spellInfo.HasAttribute(SpellAttr1.DismissPet) && !unitCaster.GetPetGUID().IsEmpty())
return SpellCastResult.AlreadyHaveSummon;
goto case SummonCategory.Puppet;
case SummonCategory.Puppet:
if (!unitCaster.GetCharmedGUID().IsEmpty())
return SpellCastResult.AlreadyHaveCharm;
break;
}
break;
}
case SpellEffectName.CreateTamedPet:
{
if (m_targets.GetUnitTarget() != null)
{
if (!m_targets.GetUnitTarget().IsTypeId(TypeId.Player))
return SpellCastResult.BadTargets;
if (!m_spellInfo.HasAttribute(SpellAttr1.DismissPet) && !m_targets.GetUnitTarget().GetPetGUID().IsEmpty())
return SpellCastResult.AlreadyHaveSummon;
}
break;
}
case SpellEffectName.SummonPet:
{
if (unitCaster == null)
return SpellCastResult.BadTargets;
if (!unitCaster.GetPetGUID().IsEmpty()) //let warlock do a replacement summon
{
if (unitCaster.IsTypeId(TypeId.Player))
{
if (strict) //starting cast, trigger pet stun (cast by pet so it doesn't attack player)
{
Pet pet = unitCaster.ToPlayer().GetPet();
if (pet != null)
{
pet.CastSpell(pet, 32752, new CastSpellExtraArgs(TriggerCastFlags.FullMask)
.SetOriginalCaster(pet.GetGUID())
.SetOriginalCastId(m_castId));
}
}
}
else if (!m_spellInfo.HasAttribute(SpellAttr1.DismissPet))
return SpellCastResult.AlreadyHaveSummon;
}
if (!unitCaster.GetCharmedGUID().IsEmpty())
return SpellCastResult.AlreadyHaveCharm;
break;
}
case SpellEffectName.SummonPlayer:
{
if (!m_caster.IsTypeId(TypeId.Player))
return SpellCastResult.BadTargets;
if (m_caster.ToPlayer().GetTarget().IsEmpty())
return SpellCastResult.BadTargets;
Player target = Global.ObjAccessor.FindPlayer(m_caster.ToPlayer().GetTarget());
if (target == null || m_caster.ToPlayer() == target || (!target.IsInSameRaidWith(m_caster.ToPlayer()) && m_spellInfo.Id != 48955)) // refer-a-friend spell
return SpellCastResult.BadTargets;
if (target.HasSummonPending())
return SpellCastResult.SummonPending;
// check if our map is dungeon
MapRecord map = CliDB.MapStorage.LookupByKey(m_caster.GetMapId());
if (map.IsDungeon())
{
uint mapId = m_caster.GetMap().GetId();
Difficulty difficulty = m_caster.GetMap().GetDifficultyID();
if (map.IsRaid())
{
InstanceBind targetBind = target.GetBoundInstance(mapId, difficulty);
if (targetBind != null)
{
InstanceBind casterBind = m_caster.ToPlayer().GetBoundInstance(mapId, difficulty);
if (casterBind != null)
if (targetBind.perm && targetBind.save != casterBind.save)
return SpellCastResult.TargetLockedToRaidInstance;
}
}
InstanceTemplate instance = Global.ObjectMgr.GetInstanceTemplate(mapId);
if (instance == null)
return SpellCastResult.TargetNotInInstance;
if (!target.Satisfy(Global.ObjectMgr.GetAccessRequirement(mapId, difficulty), mapId))
return SpellCastResult.BadTargets;
}
break;
}
// RETURN HERE
case SpellEffectName.SummonRafFriend:
{
if (!m_caster.IsTypeId(TypeId.Player))
return SpellCastResult.BadTargets;
Player playerCaster = m_caster.ToPlayer();
//
if (playerCaster.GetTarget().IsEmpty())
return SpellCastResult.BadTargets;
Player target = Global.ObjAccessor.FindPlayer(playerCaster.GetTarget());
if (target == null ||
!(target.GetSession().GetRecruiterId() == playerCaster.GetSession().GetAccountId() || target.GetSession().GetAccountId() == playerCaster.GetSession().GetRecruiterId()))
return SpellCastResult.BadTargets;
break;
}
case SpellEffectName.Leap:
case SpellEffectName.TeleportUnitsFaceCaster:
{
//Do not allow to cast it before BG starts.
if (m_caster.IsTypeId(TypeId.Player))
{
Battleground bg = m_caster.ToPlayer().GetBattleground();
if (bg)
if (bg.GetStatus() != BattlegroundStatus.InProgress)
return SpellCastResult.TryAgain;
}
break;
}
case SpellEffectName.StealBeneficialBuff:
{
if (m_targets.GetUnitTarget() == null || m_targets.GetUnitTarget() == m_caster)
return SpellCastResult.BadTargets;
break;
}
case SpellEffectName.LeapBack:
{
if (unitCaster == null)
return SpellCastResult.BadTargets;
if (unitCaster.HasUnitState(UnitState.Root))
{
if (unitCaster.IsTypeId(TypeId.Player))
return SpellCastResult.Rooted;
else
return SpellCastResult.DontReport;
}
break;
}
case SpellEffectName.Jump:
case SpellEffectName.JumpDest:
{
if (unitCaster == null)
return SpellCastResult.BadTargets;
if (unitCaster.HasUnitState(UnitState.Root))
return SpellCastResult.Rooted;
break;
}
case SpellEffectName.TalentSpecSelect:
{
ChrSpecializationRecord spec = CliDB.ChrSpecializationStorage.LookupByKey(m_misc.SpecializationId);
Player playerCaster = m_caster.ToPlayer();
if (!playerCaster)
return SpellCastResult.TargetNotPlayer;
if (spec == null || (spec.ClassID != (uint)player.GetClass() && !spec.IsPetSpecialization()))
return SpellCastResult.NoSpec;
if (spec.IsPetSpecialization())
{
Pet pet = player.GetPet();
if (!pet || pet.GetPetType() != PetType.Hunter || pet.GetCharmInfo() == null)
return SpellCastResult.NoPet;
}
// can't change during already started arena/Battleground
Battleground bg = player.GetBattleground();
if (bg)
if (bg.GetStatus() == BattlegroundStatus.InProgress)
return SpellCastResult.NotInBattleground;
break;
}
case SpellEffectName.RemoveTalent:
{
Player playerCaster = m_caster.ToPlayer();
if (playerCaster == null)
return SpellCastResult.BadTargets;
TalentRecord talent = CliDB.TalentStorage.LookupByKey(m_misc.TalentId);
if (talent == null)
return SpellCastResult.DontReport;
if (playerCaster.GetSpellHistory().HasCooldown(talent.SpellID))
{
param1 = (int)talent.SpellID;
return SpellCastResult.CantUntalent;
}
break;
}
case SpellEffectName.GiveArtifactPower:
case SpellEffectName.GiveArtifactPowerNoBonus:
{
Player playerCaster = m_caster.ToPlayer();
if (playerCaster == null)
return SpellCastResult.BadTargets;
Aura artifactAura = playerCaster.GetAura(PlayerConst.ArtifactsAllWeaponsGeneralWeaponEquippedPassive);
if (artifactAura == null)
return SpellCastResult.NoArtifactEquipped;
Item artifact = playerCaster.ToPlayer().GetItemByGuid(artifactAura.GetCastItemGUID());
if (artifact == null)
return SpellCastResult.NoArtifactEquipped;
if (spellEffectInfo.Effect == SpellEffectName.GiveArtifactPower)
{
ArtifactRecord artifactEntry = CliDB.ArtifactStorage.LookupByKey(artifact.GetTemplate().GetArtifactID());
if (artifactEntry == null || artifactEntry.ArtifactCategoryID != spellEffectInfo.MiscValue)
return SpellCastResult.WrongArtifactEquipped;
}
break;
}
case SpellEffectName.ChangeBattlepetQuality:
case SpellEffectName.GrantBattlepetExperience:
{
Player playerCaster = m_caster.ToPlayer();
if (playerCaster == null || !m_targets.GetUnitTarget() || !m_targets.GetUnitTarget().IsCreature())
return SpellCastResult.BadTargets;
var battlePetMgr = playerCaster.GetSession().GetBattlePetMgr();
if (!battlePetMgr.HasJournalLock())
return SpellCastResult.CantDoThatRightNow;
Creature creature = m_targets.GetUnitTarget().ToCreature();
if (creature != null)
{
if (playerCaster.GetSummonedBattlePetGUID().IsEmpty() || creature.GetBattlePetCompanionGUID().IsEmpty())
return SpellCastResult.NoPet;
if (playerCaster.GetSummonedBattlePetGUID() != creature.GetBattlePetCompanionGUID())
return SpellCastResult.BadTargets;
var battlePet = battlePetMgr.GetPet(creature.GetBattlePetCompanionGUID());
if (battlePet != null)
{
var battlePetSpecies = CliDB.BattlePetSpeciesStorage.LookupByKey(battlePet.PacketInfo.Species);
if (battlePetSpecies != null)
{
uint battlePetType = (uint)spellEffectInfo.MiscValue;
if (battlePetType != 0)
if ((battlePetType & (1 << battlePetSpecies.PetTypeEnum)) == 0)
return SpellCastResult.WrongBattlePetType;
if (spellEffectInfo.Effect == SpellEffectName.ChangeBattlepetQuality)
{
BattlePetBreedQuality quality = BattlePetBreedQuality.Poor;
switch (spellEffectInfo.BasePoints)
{
case 85:
quality = BattlePetBreedQuality.Rare;
break;
case 75:
quality = BattlePetBreedQuality.Uncommon;
break;
default:
// Ignore Epic Battle-Stones
break;
}
if (battlePet.PacketInfo.Quality >= (byte)quality)
return SpellCastResult.CantUpgradeBattlePet;
}
if (spellEffectInfo.Effect == SpellEffectName.GrantBattlepetExperience)
if (battlePet.PacketInfo.Level >= SharedConst.MaxBattlePetLevel)
return SpellCastResult.GrantPetLevelFail;
if (battlePetSpecies.GetFlags().HasFlag(BattlePetSpeciesFlags.CantBattle))
return SpellCastResult.BadTargets;
}
}
}
break;
}
default:
break;
}
}
foreach (var spellEffectInfo in m_spellInfo.GetEffects())
{
switch (spellEffectInfo.ApplyAuraName)
{
case AuraType.ModPossessPet:
{
if (!m_caster.IsTypeId(TypeId.Player))
return SpellCastResult.NoPet;
Pet pet = m_caster.ToPlayer().GetPet();
if (pet == null)
return SpellCastResult.NoPet;
if (!pet.GetCharmerGUID().IsEmpty())
return SpellCastResult.Charmed;
break;
}
case AuraType.ModPossess:
case AuraType.ModCharm:
case AuraType.AoeCharm:
{
Unit unitCaster1 = (m_originalCaster ? m_originalCaster : m_caster.ToUnit());
if (unitCaster1 == null)
return SpellCastResult.BadTargets;
if (!unitCaster1.GetCharmerGUID().IsEmpty())
return SpellCastResult.Charmed;
if (spellEffectInfo.ApplyAuraName == AuraType.ModCharm || spellEffectInfo.ApplyAuraName == AuraType.ModPossess)
{
if (!m_spellInfo.HasAttribute(SpellAttr1.DismissPet) && !unitCaster1.GetPetGUID().IsEmpty())
return SpellCastResult.AlreadyHaveSummon;
if (!unitCaster1.GetCharmedGUID().IsEmpty())
return SpellCastResult.AlreadyHaveCharm;
}
Unit target = m_targets.GetUnitTarget();
if (target != null)
{
if (target.IsTypeId(TypeId.Unit) && target.ToCreature().IsVehicle())
return SpellCastResult.BadImplicitTargets;
if (target.IsMounted())
return SpellCastResult.CantBeCharmed;
if (!target.GetCharmerGUID().IsEmpty())
return SpellCastResult.Charmed;
if (target.GetOwner() != null && target.GetOwner().IsTypeId(TypeId.Player))
return SpellCastResult.TargetIsPlayerControlled;
int damage = CalculateDamage(spellEffectInfo, target);
if (damage != 0 && target.GetLevelForTarget(m_caster) > damage)
return SpellCastResult.Highlevel;
}
break;
}
case AuraType.Mounted:
{
if (unitCaster == null)
return SpellCastResult.BadTargets;
if (unitCaster.IsInWater() && m_spellInfo.HasAura(AuraType.ModIncreaseMountedFlightSpeed))
return SpellCastResult.OnlyAbovewater;
if (unitCaster.IsInDisallowedMountForm())
{
SendMountResult(MountResult.Shapeshifted); // mount result gets sent before the cast result
return SpellCastResult.DontReport;
}
break;
}
case AuraType.RangedAttackPowerAttackerBonus:
{
if (m_targets.GetUnitTarget() == null)
return SpellCastResult.BadImplicitTargets;
// can be casted at non-friendly unit or own pet/charm
if (m_caster.IsFriendlyTo(m_targets.GetUnitTarget()))
return SpellCastResult.TargetFriendly;
break;
}
case AuraType.Fly:
case AuraType.ModIncreaseFlightSpeed:
{
// not allow cast fly spells if not have req. skills (all spells is self target)
// allow always ghost flight spells
if (m_originalCaster != null && m_originalCaster.IsTypeId(TypeId.Player) && m_originalCaster.IsAlive())
{
BattleField Bf = Global.BattleFieldMgr.GetBattlefieldToZoneId(m_originalCaster.GetZoneId());
var area = CliDB.AreaTableStorage.LookupByKey(m_originalCaster.GetAreaId());
if (area != null)
if (area.HasFlag(AreaFlags.NoFlyZone) || (Bf != null && !Bf.CanFlyIn()))
return SpellCastResult.NotHere;
}
break;
}
case AuraType.PeriodicManaLeech:
{
if (spellEffectInfo.IsTargetingArea())
break;
if (m_targets.GetUnitTarget() == null)
return SpellCastResult.BadImplicitTargets;
if (!m_caster.IsTypeId(TypeId.Player) || m_CastItem != null)
break;
if (m_targets.GetUnitTarget().GetPowerType() != PowerType.Mana)
return SpellCastResult.BadTargets;
break;
}
default:
break;
}
}
// check trade slot case (last, for allow catch any another cast problems)
if (Convert.ToBoolean(m_targets.GetTargetMask() & SpellCastTargetFlags.TradeItem))
{
if (m_CastItem != null)
return SpellCastResult.ItemEnchantTradeWindow;
if (!m_caster.IsTypeId(TypeId.Player))
return SpellCastResult.NotTrading;
TradeData my_trade = m_caster.ToPlayer().GetTradeData();
if (my_trade == null)
return SpellCastResult.NotTrading;
TradeSlots slot = (TradeSlots)m_targets.GetItemTargetGUID().GetLowValue();
if (slot != TradeSlots.NonTraded)
return SpellCastResult.BadTargets;
if (!IsTriggered())
if (my_trade.GetSpell() != 0)
return SpellCastResult.ItemAlreadyEnchanted;
}
// check if caster has at least 1 combo point for spells that require combo points
if (m_needComboPoints)
{
Player plrCaster = m_caster.ToPlayer();
if (plrCaster != null)
if (plrCaster.GetComboPoints() == 0)
return SpellCastResult.NoComboPoints;
}
// all ok
return SpellCastResult.SpellCastOk;
}
public SpellCastResult CheckPetCast(Unit target)
{
Unit unitCaster = m_caster.ToUnit();
if (unitCaster != null && unitCaster.HasUnitState(UnitState.Casting) && !_triggeredCastFlags.HasFlag(TriggerCastFlags.IgnoreCastInProgress)) //prevent spellcast interruption by another spellcast
return SpellCastResult.SpellInProgress;
// dead owner (pets still alive when owners ressed?)
Unit owner = m_caster.GetCharmerOrOwner();
if (owner != null)
if (!owner.IsAlive())
return SpellCastResult.CasterDead;
if (target == null && m_targets.GetUnitTarget() != null)
target = m_targets.GetUnitTarget();
if (m_spellInfo.NeedsExplicitUnitTarget())
{
if (target == null)
return SpellCastResult.BadImplicitTargets;
m_targets.SetUnitTarget(target);
}
// cooldown
Creature creatureCaster = m_caster.ToCreature();
if (creatureCaster)
if (creatureCaster.GetSpellHistory().HasCooldown(m_spellInfo.Id))
return SpellCastResult.NotReady;
// Check if spell is affected by GCD
if (m_spellInfo.StartRecoveryCategory > 0)
if (unitCaster.GetCharmInfo() != null && unitCaster.GetSpellHistory().HasGlobalCooldown(m_spellInfo))
return SpellCastResult.NotReady;
return CheckCast(true);
}
SpellCastResult CheckCasterAuras(ref int param1)
{
Unit unitCaster = (m_originalCaster ? m_originalCaster : m_caster.ToUnit());
if (unitCaster == null)
return SpellCastResult.SpellCastOk;
// spells totally immuned to caster auras (wsg flag drop, give marks etc)
if (m_spellInfo.HasAttribute(SpellAttr6.IgnoreCasterAuras))
return SpellCastResult.SpellCastOk;
// these attributes only show the spell as usable on the client when it has related aura applied
// still they need to be checked against certain mechanics
// SPELL_ATTR5_USABLE_WHILE_STUNNED by default only MECHANIC_STUN (ie no sleep, knockout, freeze, etc.)
bool usableWhileStunned = m_spellInfo.HasAttribute(SpellAttr5.UsableWhileStunned);
// SPELL_ATTR5_USABLE_WHILE_FEARED by default only fear (ie no horror)
bool usableWhileFeared = m_spellInfo.HasAttribute(SpellAttr5.UsableWhileFeared);
// SPELL_ATTR5_USABLE_WHILE_CONFUSED by default only disorient (ie no polymorph)
bool usableWhileConfused = m_spellInfo.HasAttribute(SpellAttr5.UsableWhileConfused);
// Check whether the cast should be prevented by any state you might have.
SpellCastResult result = SpellCastResult.SpellCastOk;
// Get unit state
UnitFlags unitflag = (UnitFlags)(uint)unitCaster.m_unitData.Flags;
// this check should only be done when player does cast directly
// (ie not when it's called from a script) Breaks for example PlayerAI when charmed
/*if (!unitCaster.GetCharmerGUID().IsEmpty())
{
Unit charmer = unitCaster.GetCharmer();
if (charmer)
if (charmer.GetUnitBeingMoved() != unitCaster && !CheckSpellCancelsCharm(ref param1))
result = SpellCastResult.Charmed;
}*/
// spell has attribute usable while having a cc state, check if caster has allowed mechanic auras, another mechanic types must prevent cast spell
SpellCastResult mechanicCheck(AuraType auraType, ref int _param1)
{
bool foundNotMechanic = false;
var auras = unitCaster.GetAuraEffectsByType(auraType);
foreach (AuraEffect aurEff in auras)
{
uint mechanicMask = aurEff.GetSpellInfo().GetAllEffectsMechanicMask();
if (mechanicMask != 0 && !Convert.ToBoolean(mechanicMask & GetSpellInfo().GetAllowedMechanicMask()))
{
foundNotMechanic = true;
// fill up aura mechanic info to send client proper error message
_param1 = (int)aurEff.GetSpellEffectInfo().Mechanic;
if (_param1 == 0)
_param1 = (int)aurEff.GetSpellInfo().Mechanic;
break;
}
}
if (foundNotMechanic)
{
switch (auraType)
{
case AuraType.ModStun:
return SpellCastResult.Stunned;
case AuraType.ModFear:
return SpellCastResult.Fleeing;
case AuraType.ModConfuse:
return SpellCastResult.Confused;
default:
//ABORT();
return SpellCastResult.NotKnown;
}
}
return SpellCastResult.SpellCastOk;
}
if (unitflag.HasAnyFlag(UnitFlags.Stunned))
{
if (usableWhileStunned)
{
SpellCastResult mechanicResult = mechanicCheck(AuraType.ModStun, ref param1);
if (mechanicResult != SpellCastResult.SpellCastOk)
result = mechanicResult;
}
else if (!CheckSpellCancelsStun(ref param1))
result = SpellCastResult.Stunned;
}
else if (unitflag.HasAnyFlag(UnitFlags.Silenced) && m_spellInfo.PreventionType.HasAnyFlag(SpellPreventionType.Silence) && !CheckSpellCancelsSilence(ref param1))
result = SpellCastResult.Silenced;
else if (unitflag.HasAnyFlag(UnitFlags.Pacified) && m_spellInfo.PreventionType.HasAnyFlag(SpellPreventionType.Pacify) && !CheckSpellCancelsPacify(ref param1))
result = SpellCastResult.Pacified;
else if (unitflag.HasAnyFlag(UnitFlags.Fleeing))
{
if (usableWhileFeared)
{
SpellCastResult mechanicResult = mechanicCheck(AuraType.ModFear, ref param1);
if (mechanicResult != SpellCastResult.SpellCastOk)
result = mechanicResult;
}
else if (!CheckSpellCancelsFear(ref param1))
result = SpellCastResult.Fleeing;
}
else if (unitflag.HasAnyFlag(UnitFlags.Confused))
{
if (usableWhileConfused)
{
SpellCastResult mechanicResult = mechanicCheck(AuraType.ModConfuse, ref param1);
if (mechanicResult != SpellCastResult.SpellCastOk)
result = mechanicResult;
}
else if (!CheckSpellCancelsConfuse(ref param1))
result = SpellCastResult.Confused;
}
else if (unitCaster.HasUnitFlag2(UnitFlags2.NoActions) && m_spellInfo.PreventionType.HasAnyFlag(SpellPreventionType.NoActions) && !CheckSpellCancelsNoActions(ref param1))
result = SpellCastResult.NoActions;
// Attr must make flag drop spell totally immune from all effects
if (result != SpellCastResult.SpellCastOk)
return (param1 != 0) ? SpellCastResult.PreventedByMechanic : result;
return SpellCastResult.SpellCastOk;
}
bool CheckSpellCancelsAuraEffect(AuraType auraType, ref int param1)
{
Unit unitCaster = (m_originalCaster ? m_originalCaster : m_caster.ToUnit());
if (unitCaster == null)
return false;
// Checking auras is needed now, because you are prevented by some state but the spell grants immunity.
var auraEffects = unitCaster.GetAuraEffectsByType(auraType);
if (auraEffects.Empty())
return true;
foreach (AuraEffect aurEff in auraEffects)
{
if (m_spellInfo.SpellCancelsAuraEffect(aurEff))
continue;
param1 = (int)aurEff.GetSpellEffectInfo().Mechanic;
if (param1 == 0)
param1 = (int)aurEff.GetSpellInfo().Mechanic;
return false;
}
return true;
}
bool CheckSpellCancelsCharm(ref int param1)
{
return CheckSpellCancelsAuraEffect(AuraType.ModCharm, ref param1) ||
CheckSpellCancelsAuraEffect(AuraType.AoeCharm, ref param1) ||
CheckSpellCancelsAuraEffect(AuraType.ModPossess, ref param1);
}
bool CheckSpellCancelsStun(ref int param1)
{
return CheckSpellCancelsAuraEffect(AuraType.ModStun, ref param1) &&
CheckSpellCancelsAuraEffect(AuraType.ModStunDisableGravity, ref param1);
}
bool CheckSpellCancelsSilence(ref int param1)
{
return CheckSpellCancelsAuraEffect(AuraType.ModSilence, ref param1) ||
CheckSpellCancelsAuraEffect(AuraType.ModPacifySilence, ref param1);
}
bool CheckSpellCancelsPacify(ref int param1)
{
return CheckSpellCancelsAuraEffect(AuraType.ModPacify, ref param1) ||
CheckSpellCancelsAuraEffect(AuraType.ModPacifySilence, ref param1);
}
bool CheckSpellCancelsFear(ref int param1)
{
return CheckSpellCancelsAuraEffect(AuraType.ModFear, ref param1);
}
bool CheckSpellCancelsConfuse(ref int param1)
{
return CheckSpellCancelsAuraEffect(AuraType.ModConfuse, ref param1);
}
bool CheckSpellCancelsNoActions(ref int param1)
{
return CheckSpellCancelsAuraEffect(AuraType.ModNoActions, ref param1);
}
SpellCastResult CheckArenaAndRatedBattlegroundCastRules()
{
bool isRatedBattleground = false; // NYI
bool isArena = !isRatedBattleground;
// check USABLE attributes
// USABLE takes precedence over NOT_USABLE
if (isRatedBattleground && m_spellInfo.HasAttribute(SpellAttr9.UsableInRatedBattlegrounds))
return SpellCastResult.SpellCastOk;
if (isArena && m_spellInfo.HasAttribute(SpellAttr4.UsableInArena))
return SpellCastResult.SpellCastOk;
// check NOT_USABLE attributes
if (m_spellInfo.HasAttribute(SpellAttr4.NotUsableInArenaOrRatedBg))
return isArena ? SpellCastResult.NotInArena : SpellCastResult.NotInBattleground;
if (isArena && m_spellInfo.HasAttribute(SpellAttr9.NotUsableInArena))
return SpellCastResult.NotInArena;
// check cooldowns
uint spellCooldown = m_spellInfo.GetRecoveryTime();
if (isArena && spellCooldown > 10 * Time.Minute * Time.InMilliseconds) // not sure if still needed
return SpellCastResult.NotInArena;
if (isRatedBattleground && spellCooldown > 15 * Time.Minute * Time.InMilliseconds)
return SpellCastResult.NotInBattleground;
return SpellCastResult.SpellCastOk;
}
public bool CanAutoCast(Unit target)
{
if (!target)
return (CheckPetCast(target) == SpellCastResult.SpellCastOk);
ObjectGuid targetguid = target.GetGUID();
// check if target already has the same or a more powerful aura
foreach (var spellEffectInfo in m_spellInfo.GetEffects())
{
if (!spellEffectInfo.IsAura())
continue;
AuraType auraType = spellEffectInfo.ApplyAuraName;
var auras = target.GetAuraEffectsByType(auraType);
foreach (var eff in auras)
{
if (GetSpellInfo().Id == eff.GetSpellInfo().Id)
return false;
switch (Global.SpellMgr.CheckSpellGroupStackRules(GetSpellInfo(), eff.GetSpellInfo()))
{
case SpellGroupStackRule.Exclusive:
return false;
case SpellGroupStackRule.ExclusiveFromSameCaster:
if (GetCaster() == eff.GetCaster())
return false;
break;
case SpellGroupStackRule.ExclusiveSameEffect: // this one has further checks, but i don't think they're necessary for autocast logic
case SpellGroupStackRule.ExclusiveHighest:
if (Math.Abs(spellEffectInfo.BasePoints) <= Math.Abs(eff.GetAmount()))
return false;
break;
case SpellGroupStackRule.Default:
default:
break;
}
}
}
SpellCastResult result = CheckPetCast(target);
if (result == SpellCastResult.SpellCastOk || result == SpellCastResult.UnitNotInfront)
{
// do not check targets for ground-targeted spells (we target them on top of the intended target anyway)
if (GetSpellInfo().ExplicitTargetMask.HasAnyFlag((uint)SpellCastTargetFlags.DestLocation))
return true;
SelectSpellTargets();
//check if among target units, our WANTED target is as well (.only self cast spells return false)
foreach (var ihit in m_UniqueTargetInfo)
if (ihit.TargetGUID == targetguid)
return true;
}
// either the cast failed or the intended target wouldn't be hit
return false;
}
SpellCastResult CheckRange(bool strict)
{
// Don't check for instant cast spells
if (!strict && m_casttime == 0)
return SpellCastResult.SpellCastOk;
(float minRange, float maxRange) = GetMinMaxRange(strict);
// dont check max_range to strictly after cast
if (m_spellInfo.RangeEntry != null && m_spellInfo.RangeEntry.Flags != SpellRangeFlag.Melee && !strict)
maxRange += Math.Min(3.0f, maxRange * 0.1f); // 10% but no more than 3.0f
// get square values for sqr distance checks
minRange *= minRange;
maxRange *= maxRange;
Unit target = m_targets.GetUnitTarget();
if (target && target != m_caster)
{
if (m_caster.GetExactDistSq(target) > maxRange)
return SpellCastResult.OutOfRange;
if (minRange > 0.0f && m_caster.GetExactDistSq(target) < minRange)
return SpellCastResult.OutOfRange;
if (m_caster.IsTypeId(TypeId.Player) &&
((m_spellInfo.FacingCasterFlags.HasAnyFlag(1u) && !m_caster.HasInArc((float)Math.PI, target))
&& !m_caster.ToPlayer().IsWithinBoundaryRadius(target)))
return SpellCastResult.UnitNotInfront;
}
GameObject goTarget = m_targets.GetGOTarget();
if (goTarget != null)
{
if (!goTarget.IsAtInteractDistance(m_caster.ToPlayer(), m_spellInfo))
return SpellCastResult.OutOfRange;
}
if (m_targets.HasDst() && !m_targets.HasTraj())
{
if (m_caster.GetExactDistSq(m_targets.GetDstPos()) > maxRange)
return SpellCastResult.OutOfRange;
if (minRange > 0.0f && m_caster.GetExactDistSq(m_targets.GetDstPos()) < minRange)
return SpellCastResult.OutOfRange;
}
return SpellCastResult.SpellCastOk;
}
(float minRange, float maxRange) GetMinMaxRange(bool strict)
{
float rangeMod = 0.0f;
float minRange = 0.0f;
float maxRange = 0.0f;
if (strict && m_spellInfo.IsNextMeleeSwingSpell())
return (0.0f, 100.0f);
Unit unitCaster = m_caster.ToUnit();
if (m_spellInfo.RangeEntry != null)
{
Unit target = m_targets.GetUnitTarget();
if (m_spellInfo.RangeEntry.Flags.HasAnyFlag(SpellRangeFlag.Melee))
{
// when the target is not a unit, take the caster's combat reach as the target's combat reach.
if (unitCaster)
rangeMod = unitCaster.GetMeleeRange(target ? target : unitCaster);
}
else
{
float meleeRange = 0.0f;
if (m_spellInfo.RangeEntry.Flags.HasAnyFlag(SpellRangeFlag.Ranged))
{
// when the target is not a unit, take the caster's combat reach as the target's combat reach.
if (unitCaster != null)
meleeRange = unitCaster.GetMeleeRange(target ? target : unitCaster);
}
minRange = m_caster.GetSpellMinRangeForTarget(target, m_spellInfo) + meleeRange;
maxRange = m_caster.GetSpellMaxRangeForTarget(target, m_spellInfo);
if (target || m_targets.GetCorpseTarget())
{
rangeMod = m_caster.GetCombatReach() + (target ? target.GetCombatReach() : m_caster.GetCombatReach());
if (minRange > 0.0f && !m_spellInfo.RangeEntry.Flags.HasAnyFlag(SpellRangeFlag.Ranged))
minRange += rangeMod;
}
}
if (target != null && unitCaster != null && unitCaster.IsMoving() && target.IsMoving() && !unitCaster.IsWalking() && !target.IsWalking() &&
(m_spellInfo.RangeEntry.Flags.HasFlag(SpellRangeFlag.Melee) || target.IsPlayer()))
rangeMod += 8.0f / 3.0f;
}
if (m_spellInfo.HasAttribute(SpellAttr0.ReqAmmo) && m_caster.IsTypeId(TypeId.Player))
{
Item ranged = m_caster.ToPlayer().GetWeaponForAttack(WeaponAttackType.RangedAttack, true);
if (ranged)
maxRange *= ranged.GetTemplate().GetRangedModRange() * 0.01f;
}
Player modOwner = m_caster.GetSpellModOwner();
if (modOwner)
modOwner.ApplySpellMod(m_spellInfo, SpellModOp.Range, ref maxRange, this);
maxRange += rangeMod;
return (minRange, maxRange);
}
SpellCastResult CheckPower()
{
Unit unitCaster = m_caster.ToUnit();
if (unitCaster == null)
return SpellCastResult.SpellCastOk;
// item cast not used power
if (m_CastItem != null)
return SpellCastResult.SpellCastOk;
foreach (SpellPowerCost cost in m_powerCost)
{
// health as power used - need check health amount
if (cost.Power == PowerType.Health)
{
if (unitCaster.GetHealth() <= (ulong)cost.Amount)
return SpellCastResult.CasterAurastate;
continue;
}
// Check valid power type
if (cost.Power >= PowerType.Max)
{
Log.outError(LogFilter.Spells, "Spell.CheckPower: Unknown power type '{0}'", cost.Power);
return SpellCastResult.Unknown;
}
//check rune cost only if a spell has PowerType == POWER_RUNES
if (cost.Power == PowerType.Runes)
{
SpellCastResult failReason = CheckRuneCost();
if (failReason != SpellCastResult.SpellCastOk)
return failReason;
}
// Check power amount
if (unitCaster.GetPower(cost.Power) < cost.Amount)
return SpellCastResult.NoPower;
}
return SpellCastResult.SpellCastOk;
}
SpellCastResult CheckItems(ref int param1, ref int param2)
{
Player player = m_caster.ToPlayer();
if (!player)
return SpellCastResult.SpellCastOk;
if (m_CastItem == null)
{
if (!m_castItemGUID.IsEmpty())
return SpellCastResult.ItemNotReady;
}
else
{
uint itemid = m_CastItem.GetEntry();
if (!player.HasItemCount(itemid))
return SpellCastResult.ItemNotReady;
ItemTemplate proto = m_CastItem.GetTemplate();
if (proto == null)
return SpellCastResult.ItemNotReady;
foreach (ItemEffectRecord itemEffect in m_CastItem.GetEffects())
if (itemEffect.LegacySlotIndex < m_CastItem.m_itemData.SpellCharges.GetSize() && itemEffect.Charges != 0)
if (m_CastItem.GetSpellCharges(itemEffect.LegacySlotIndex) == 0)
return SpellCastResult.NoChargesRemain;
// consumable cast item checks
if (proto.GetClass() == ItemClass.Consumable && m_targets.GetUnitTarget() != null)
{
// such items should only fail if there is no suitable effect at all - see Rejuvenation Potions for example
SpellCastResult failReason = SpellCastResult.SpellCastOk;
foreach (var spellEffectInfo in m_spellInfo.GetEffects())
{
// skip check, pet not required like checks, and for TARGET_UNIT_PET m_targets.GetUnitTarget() is not the real target but the caster
if (spellEffectInfo.TargetA.GetTarget() == Targets.UnitPet)
continue;
if (spellEffectInfo.Effect == SpellEffectName.Heal)
{
if (m_targets.GetUnitTarget().IsFullHealth())
{
failReason = SpellCastResult.AlreadyAtFullHealth;
continue;
}
else
{
failReason = SpellCastResult.SpellCastOk;
break;
}
}
// Mana Potion, Rage Potion, Thistle Tea(Rogue), ...
if (spellEffectInfo.Effect == SpellEffectName.Energize)
{
if (spellEffectInfo.MiscValue < 0 || spellEffectInfo.MiscValue >= (int)PowerType.Max)
{
failReason = SpellCastResult.AlreadyAtFullPower;
continue;
}
PowerType power = (PowerType)spellEffectInfo.MiscValue;
if (m_targets.GetUnitTarget().GetPower(power) == m_targets.GetUnitTarget().GetMaxPower(power))
{
failReason = SpellCastResult.AlreadyAtFullPower;
continue;
}
else
{
failReason = SpellCastResult.SpellCastOk;
break;
}
}
}
if (failReason != SpellCastResult.SpellCastOk)
return failReason;
}
}
// check target item
if (!m_targets.GetItemTargetGUID().IsEmpty())
{
Item item = m_targets.GetItemTarget();
if (item == null)
return SpellCastResult.ItemGone;
if (!item.IsFitToSpellRequirements(m_spellInfo))
return SpellCastResult.EquippedItemClass;
}
// if not item target then required item must be equipped
else
{
if (!Convert.ToBoolean(_triggeredCastFlags & TriggerCastFlags.IgnoreEquippedItemRequirement))
if (m_caster.IsTypeId(TypeId.Player) && !m_caster.ToPlayer().HasItemFitToSpellRequirements(m_spellInfo))
return SpellCastResult.EquippedItemClass;
}
// do not take reagents for these item casts
if (!(m_CastItem != null && m_CastItem.GetTemplate().HasFlag(ItemFlags.NoReagentCost)))
{
bool checkReagents = !Convert.ToBoolean(_triggeredCastFlags & TriggerCastFlags.IgnorePowerAndReagentCost) && !player.CanNoReagentCast(m_spellInfo);
// Not own traded item (in trader trade slot) requires reagents even if triggered spell
if (!checkReagents)
{
Item targetItem = m_targets.GetItemTarget();
if (targetItem != null)
if (targetItem.GetOwnerGUID() != player.GetGUID())
checkReagents = true;
}
// check reagents (ignore triggered spells with reagents processed by original spell) and special reagent ignore case.
if (checkReagents)
{
for (byte i = 0; i < SpellConst.MaxReagents; i++)
{
if (m_spellInfo.Reagent[i] <= 0)
continue;
uint itemid = (uint)m_spellInfo.Reagent[i];
uint itemcount = m_spellInfo.ReagentCount[i];
// if CastItem is also spell reagent
if (m_CastItem != null && m_CastItem.GetEntry() == itemid)
{
ItemTemplate proto = m_CastItem.GetTemplate();
if (proto == null)
return SpellCastResult.ItemNotReady;
foreach (ItemEffectRecord itemEffect in m_CastItem.GetEffects())
{
if (itemEffect.LegacySlotIndex >= m_CastItem.m_itemData.SpellCharges.GetSize())
continue;
// CastItem will be used up and does not count as reagent
int charges = m_CastItem.GetSpellCharges(itemEffect.LegacySlotIndex);
if (itemEffect.Charges < 0 && Math.Abs(charges) < 2)
{
++itemcount;
break;
}
}
}
if (!player.HasItemCount(itemid, itemcount))
{
param1 = (int)itemid;
return SpellCastResult.Reagents;
}
}
foreach (var reagentsCurrency in m_spellInfo.ReagentsCurrency)
{
if (!player.HasCurrency(reagentsCurrency.CurrencyTypesID, reagentsCurrency.CurrencyCount))
{
param1 = -1;
param2 = reagentsCurrency.CurrencyTypesID;
return SpellCastResult.Reagents;
}
}
}
// check totem-item requirements (items presence in inventory)
uint totems = 2;
for (int i = 0; i < 2; ++i)
{
if (m_spellInfo.Totem[i] != 0)
{
if (player.HasItemCount(m_spellInfo.Totem[i]))
{
totems -= 1;
continue;
}
}
else
totems -= 1;
}
if (totems != 0)
return SpellCastResult.Totems;
// Check items for TotemCategory (items presence in inventory)
uint totemCategory = 2;
for (byte i = 0; i < 2; ++i)
{
if (m_spellInfo.TotemCategory[i] != 0)
{
if (player.HasItemTotemCategory(m_spellInfo.TotemCategory[i]))
{
totemCategory -= 1;
continue;
}
}
else
totemCategory -= 1;
}
if (totemCategory != 0)
return SpellCastResult.TotemCategory;
}
// special checks for spell effects
foreach (var spellEffectInfo in m_spellInfo.GetEffects())
{
switch (spellEffectInfo.Effect)
{
case SpellEffectName.CreateItem:
case SpellEffectName.CreateLoot:
{
// m_targets.GetUnitTarget() means explicit cast, otherwise we dont check for possible equip error
Unit target = m_targets.GetUnitTarget() ?? player;
if (target.IsPlayer() && !IsTriggered())
{
// SPELL_EFFECT_CREATE_ITEM_2 differs from SPELL_EFFECT_CREATE_ITEM in that it picks the random item to create from a pool of potential items,
// so we need to make sure there is at least one free space in the player's inventory
if (spellEffectInfo.Effect == SpellEffectName.CreateLoot)
{
if (target.ToPlayer().GetFreeInventorySpace() == 0)
{
player.SendEquipError(InventoryResult.InvFull, null, null, spellEffectInfo.ItemType);
return SpellCastResult.DontReport;
}
}
if (spellEffectInfo.ItemType != 0)
{
ItemTemplate itemTemplate = Global.ObjectMgr.GetItemTemplate(spellEffectInfo.ItemType);
if (itemTemplate == null)
return SpellCastResult.ItemNotFound;
uint createCount = (uint)Math.Clamp(spellEffectInfo.CalcValue(), 1u, itemTemplate.GetMaxStackSize());
List<ItemPosCount> dest = new();
InventoryResult msg = target.ToPlayer().CanStoreNewItem(ItemConst.NullBag, ItemConst.NullSlot, dest, spellEffectInfo.ItemType, createCount);
if (msg != InventoryResult.Ok)
{
/// @todo Needs review
if (itemTemplate.GetItemLimitCategory() == 0)
{
player.SendEquipError(msg, null, null, spellEffectInfo.ItemType);
return SpellCastResult.DontReport;
}
else
{
// Conjure Food/Water/Refreshment spells
if (m_spellInfo.SpellFamilyName != SpellFamilyNames.Mage || (!m_spellInfo.SpellFamilyFlags[0].HasAnyFlag(0x40000000u)))
return SpellCastResult.TooManyOfItem;
else if (!target.ToPlayer().HasItemCount(spellEffectInfo.ItemType))
{
player.SendEquipError(msg, null, null, spellEffectInfo.ItemType);
return SpellCastResult.DontReport;
}
else if (m_spellInfo.GetEffects().Count > 1)
player.CastSpell(player, (uint)m_spellInfo.GetEffect(1).CalcValue(), new CastSpellExtraArgs()
.SetOriginalCastId(m_castId)); // move this to anywhere
return SpellCastResult.DontReport;
}
}
}
}
break;
}
case SpellEffectName.EnchantItem:
if (spellEffectInfo.ItemType != 0 && m_targets.GetItemTarget() != null && m_targets.GetItemTarget().IsVellum())
{
// cannot enchant vellum for other player
if (m_targets.GetItemTarget().GetOwner() != player)
return SpellCastResult.NotTradeable;
// do not allow to enchant vellum from scroll made by vellum-prevent exploit
if (m_CastItem != null && m_CastItem.GetTemplate().HasFlag(ItemFlags.NoReagentCost))
return SpellCastResult.TotemCategory;
List<ItemPosCount> dest = new();
InventoryResult msg = player.CanStoreNewItem(ItemConst.NullBag, ItemConst.NullSlot, dest, spellEffectInfo.ItemType, 1);
if (msg != InventoryResult.Ok)
{
player.SendEquipError(msg, null, null, spellEffectInfo.ItemType);
return SpellCastResult.DontReport;
}
}
goto case SpellEffectName.EnchantItemPrismatic;
case SpellEffectName.EnchantItemPrismatic:
{
Item targetItem = m_targets.GetItemTarget();
if (targetItem == null)
return SpellCastResult.ItemNotFound;
// required level has to be checked also! Exploit fix
if (targetItem.GetItemLevel(targetItem.GetOwner()) < m_spellInfo.BaseLevel || (targetItem.GetRequiredLevel() != 0 && targetItem.GetRequiredLevel() < m_spellInfo.BaseLevel))
return SpellCastResult.Lowlevel;
bool isItemUsable = false;
foreach (ItemEffectRecord itemEffect in targetItem.GetEffects())
{
if (itemEffect.SpellID != 0 && itemEffect.TriggerType == ItemSpelltriggerType.OnUse)
{
isItemUsable = true;
break;
}
}
var enchantEntry = CliDB.SpellItemEnchantmentStorage.LookupByKey(spellEffectInfo.MiscValue);
// do not allow adding usable enchantments to items that have use effect already
if (enchantEntry != null)
{
for (var s = 0; s < ItemConst.MaxItemEnchantmentEffects; ++s)
{
switch (enchantEntry.Effect[s])
{
case ItemEnchantmentType.UseSpell:
if (isItemUsable)
return SpellCastResult.OnUseEnchant;
break;
case ItemEnchantmentType.PrismaticSocket:
{
uint numSockets = 0;
for (uint socket = 0; socket < ItemConst.MaxGemSockets; ++socket)
if (targetItem.GetSocketColor(socket) != 0)
++numSockets;
if (numSockets == ItemConst.MaxGemSockets || targetItem.GetEnchantmentId(EnchantmentSlot.Prismatic) != 0)
return SpellCastResult.MaxSockets;
break;
}
}
}
}
// Not allow enchant in trade slot for some enchant type
if (targetItem.GetOwner() != player)
{
if (enchantEntry == null)
return SpellCastResult.Error;
if (enchantEntry.Flags.HasAnyFlag(EnchantmentSlotMask.CanSouldBound))
return SpellCastResult.NotTradeable;
}
break;
}
case SpellEffectName.EnchantItemTemporary:
{
Item item = m_targets.GetItemTarget();
if (item == null)
return SpellCastResult.ItemNotFound;
// Not allow enchant in trade slot for some enchant type
if (item.GetOwner() != player)
{
int enchant_id = spellEffectInfo.MiscValue;
var pEnchant = CliDB.SpellItemEnchantmentStorage.LookupByKey(enchant_id);
if (pEnchant == null)
return SpellCastResult.Error;
if (pEnchant.Flags.HasAnyFlag(EnchantmentSlotMask.CanSouldBound))
return SpellCastResult.NotTradeable;
}
// Apply item level restriction if the enchanting spell has max level restrition set
if (m_CastItem != null && m_spellInfo.MaxLevel > 0)
{
if (item.GetTemplate().GetBaseItemLevel() < m_CastItem.GetTemplate().GetBaseRequiredLevel())
return SpellCastResult.Lowlevel;
if (item.GetTemplate().GetBaseItemLevel() > m_spellInfo.MaxLevel)
return SpellCastResult.Highlevel;
}
break;
}
case SpellEffectName.EnchantHeldItem:
// check item existence in effect code (not output errors at offhand hold item effect to main hand for example
break;
case SpellEffectName.Disenchant:
{
Item item = m_targets.GetItemTarget();
if (!item)
return SpellCastResult.CantBeDisenchanted;
// prevent disenchanting in trade slot
if (item.GetOwnerGUID() != player.GetGUID())
return SpellCastResult.CantBeDisenchanted;
ItemTemplate itemProto = item.GetTemplate();
if (itemProto == null)
return SpellCastResult.CantBeDisenchanted;
ItemDisenchantLootRecord itemDisenchantLoot = item.GetDisenchantLoot(m_caster.ToPlayer());
if (itemDisenchantLoot == null)
return SpellCastResult.CantBeDisenchanted;
if (itemDisenchantLoot.SkillRequired > player.GetSkillValue(SkillType.Enchanting))
return SpellCastResult.LowCastlevel;
break;
}
case SpellEffectName.Prospecting:
{
Item item = m_targets.GetItemTarget();
if (!item)
return SpellCastResult.CantBeProspected;
//ensure item is a prospectable ore
if (!item.GetTemplate().HasFlag(ItemFlags.IsProspectable))
return SpellCastResult.CantBeProspected;
//prevent prospecting in trade slot
if (item.GetOwnerGUID() != player.GetGUID())
return SpellCastResult.CantBeProspected;
//Check for enough skill in jewelcrafting
uint item_prospectingskilllevel = item.GetTemplate().GetRequiredSkillRank();
if (item_prospectingskilllevel > player.GetSkillValue(SkillType.Jewelcrafting))
return SpellCastResult.LowCastlevel;
//make sure the player has the required ores in inventory
if (item.GetCount() < 5)
{
param1 = (int)item.GetEntry();
param2 = 5;
return SpellCastResult.NeedMoreItems;
}
if (!LootStorage.Prospecting.HaveLootFor(m_targets.GetItemTargetEntry()))
return SpellCastResult.CantBeProspected;
break;
}
case SpellEffectName.Milling:
{
Item item = m_targets.GetItemTarget();
if (!item)
return SpellCastResult.CantBeMilled;
//ensure item is a millable herb
if (!item.GetTemplate().HasFlag(ItemFlags.IsMillable))
return SpellCastResult.CantBeMilled;
//prevent milling in trade slot
if (item.GetOwnerGUID() != player.GetGUID())
return SpellCastResult.CantBeMilled;
//Check for enough skill in inscription
uint item_millingskilllevel = item.GetTemplate().GetRequiredSkillRank();
if (item_millingskilllevel > player.GetSkillValue(SkillType.Inscription))
return SpellCastResult.LowCastlevel;
//make sure the player has the required herbs in inventory
if (item.GetCount() < 5)
{
param1 = (int)item.GetEntry();
param2 = 5;
return SpellCastResult.NeedMoreItems;
}
if (!LootStorage.Milling.HaveLootFor(m_targets.GetItemTargetEntry()))
return SpellCastResult.CantBeMilled;
break;
}
case SpellEffectName.WeaponDamage:
case SpellEffectName.WeaponDamageNoSchool:
{
if (m_attackType != WeaponAttackType.RangedAttack)
break;
Item item = player.GetWeaponForAttack(m_attackType);
if (item == null || item.IsBroken())
return SpellCastResult.EquippedItem;
switch ((ItemSubClassWeapon)item.GetTemplate().GetSubClass())
{
case ItemSubClassWeapon.Thrown:
{
uint ammo = item.GetEntry();
if (!player.HasItemCount(ammo))
return SpellCastResult.NoAmmo;
break;
}
case ItemSubClassWeapon.Gun:
case ItemSubClassWeapon.Bow:
case ItemSubClassWeapon.Crossbow:
case ItemSubClassWeapon.Wand:
break;
default:
break;
}
break;
}
case SpellEffectName.RechargeItem:
{
uint itemId = spellEffectInfo.ItemType;
ItemTemplate proto = Global.ObjectMgr.GetItemTemplate(itemId);
if (proto == null)
return SpellCastResult.ItemAtMaxCharges;
Item item = player.GetItemByEntry(itemId);
if (item != null)
{
foreach (ItemEffectRecord itemEffect in item.GetEffects())
if (itemEffect.LegacySlotIndex <= item.m_itemData.SpellCharges.GetSize() && itemEffect.Charges != 0 && item.GetSpellCharges(itemEffect.LegacySlotIndex) == itemEffect.Charges)
return SpellCastResult.ItemAtMaxCharges;
}
break;
}
case SpellEffectName.RespecAzeriteEmpoweredItem:
{
Item item = m_targets.GetItemTarget();
if (item == null)
return SpellCastResult.AzeriteEmpoweredOnly;
if (item.GetOwnerGUID() != m_caster.GetGUID())
return SpellCastResult.DontReport;
AzeriteEmpoweredItem azeriteEmpoweredItem = item.ToAzeriteEmpoweredItem();
if (azeriteEmpoweredItem == null)
return SpellCastResult.AzeriteEmpoweredOnly;
bool hasSelections = false;
for (int tier = 0; tier < azeriteEmpoweredItem.GetMaxAzeritePowerTier(); ++tier)
{
if (azeriteEmpoweredItem.GetSelectedAzeritePower(tier) != 0)
{
hasSelections = true;
break;
}
}
if (!hasSelections)
return SpellCastResult.AzeriteEmpoweredNoChoicesToUndo;
if (!m_caster.ToPlayer().HasEnoughMoney(azeriteEmpoweredItem.GetRespecCost()))
return SpellCastResult.DontReport;
break;
}
default:
break;
}
}
// check weapon presence in slots for main/offhand weapons
if (!Convert.ToBoolean(_triggeredCastFlags & TriggerCastFlags.IgnoreEquippedItemRequirement) && m_spellInfo.EquippedItemClass >= 0)
{
var weaponCheck = new Func<WeaponAttackType, SpellCastResult>(attackType =>
{
Item item = player.ToPlayer().GetWeaponForAttack(attackType);
// skip spell if no weapon in slot or broken
if (!item || item.IsBroken())
return SpellCastResult.EquippedItemClass;
// skip spell if weapon not fit to triggered spell
if (!item.IsFitToSpellRequirements(m_spellInfo))
return SpellCastResult.EquippedItemClass;
return SpellCastResult.SpellCastOk;
});
// main hand weapon required
if (m_spellInfo.HasAttribute(SpellAttr3.MainHand))
{
SpellCastResult mainHandResult = weaponCheck(WeaponAttackType.BaseAttack);
if (mainHandResult != SpellCastResult.SpellCastOk)
return mainHandResult;
}
// offhand hand weapon required
if (m_spellInfo.HasAttribute(SpellAttr3.ReqOffhand))
{
SpellCastResult offHandResult = weaponCheck(WeaponAttackType.OffAttack);
if (offHandResult != SpellCastResult.SpellCastOk)
return offHandResult;
}
}
return SpellCastResult.SpellCastOk;
}
public void Delayed() // only called in DealDamage()
{
Unit unitCaster = m_caster.ToUnit();
if (unitCaster == null)
return;
if (IsDelayableNoMore()) // Spells may only be delayed twice
return;
//check pushback reduce
int delaytime = 500; // spellcasting delay is normally 500ms
int delayReduce = 100; // must be initialized to 100 for percent modifiers
Player player = unitCaster.GetSpellModOwner();
if (player != null)
player.ApplySpellMod(m_spellInfo, SpellModOp.ResistPushback, ref delayReduce, this);
delayReduce += unitCaster.GetTotalAuraModifier(AuraType.ReducePushback) - 100;
if (delayReduce >= 100)
return;
MathFunctions.AddPct(ref delaytime, -delayReduce);
if (m_timer + delaytime > m_casttime)
{
delaytime = m_casttime - m_timer;
m_timer = m_casttime;
}
else
m_timer += delaytime;
SpellDelayed spellDelayed = new();
spellDelayed.Caster = unitCaster.GetGUID();
spellDelayed.ActualDelay = delaytime;
unitCaster.SendMessageToSet(spellDelayed, true);
}
public void DelayedChannel()
{
Unit unitCaster = m_caster.ToUnit();
if (unitCaster == null)
return;
if (m_spellState != SpellState.Casting)
return;
if (IsDelayableNoMore()) // Spells may only be delayed twice
return;
//check pushback reduce
// should be affected by modifiers, not take the dbc duration.
int duration = ((m_channeledDuration > 0) ? m_channeledDuration : m_spellInfo.GetDuration());
int delaytime = MathFunctions.CalculatePct(duration, 25); // channeling delay is normally 25% of its time per hit
int delayReduce = 100; // must be initialized to 100 for percent modifiers
Player player = unitCaster.GetSpellModOwner();
if (player != null)
player.ApplySpellMod(m_spellInfo, SpellModOp.ResistPushback, ref delayReduce, this);
delayReduce += unitCaster.GetTotalAuraModifier(AuraType.ReducePushback) - 100;
if (delayReduce >= 100)
return;
MathFunctions.AddPct(ref delaytime, -delayReduce);
if (m_timer <= delaytime)
{
delaytime = m_timer;
m_timer = 0;
}
else
m_timer -= delaytime;
foreach (var ihit in m_UniqueTargetInfo)
{
if (ihit.MissCondition == SpellMissInfo.None)
{
Unit unit = (unitCaster.GetGUID() == ihit.TargetGUID) ? unitCaster : Global.ObjAccessor.GetUnit(unitCaster, ihit.TargetGUID);
if (unit != null)
unit.DelayOwnedAuras(m_spellInfo.Id, m_originalCasterGUID, delaytime);
}
}
// partially interrupt persistent area auras
DynamicObject dynObj = unitCaster.GetDynObject(m_spellInfo.Id);
if (dynObj != null)
dynObj.Delay(delaytime);
SendChannelUpdate((uint)m_timer);
}
public bool HasPowerTypeCost(PowerType power)
{
return GetPowerTypeCostAmount(power).HasValue;
}
public int? GetPowerTypeCostAmount(PowerType power)
{
var powerCost = m_powerCost.Find(cost => cost.Power == power);
if (powerCost == null)
return null;
return powerCost.Amount;
}
bool UpdatePointers()
{
if (m_originalCasterGUID == m_caster.GetGUID())
m_originalCaster = m_caster.ToUnit();
else
{
m_originalCaster = Global.ObjAccessor.GetUnit(m_caster, m_originalCasterGUID);
if (m_originalCaster != null && !m_originalCaster.IsInWorld)
m_originalCaster = null;
}
if (!m_castItemGUID.IsEmpty() && m_caster.IsTypeId(TypeId.Player))
{
m_CastItem = m_caster.ToPlayer().GetItemByGuid(m_castItemGUID);
m_castItemLevel = -1;
// cast item not found, somehow the item is no longer where we expected
if (!m_CastItem)
return false;
// check if the item is really the same, in case it has been wrapped for example
if (m_castItemEntry != m_CastItem.GetEntry())
return false;
m_castItemLevel = (int)m_CastItem.GetItemLevel(m_caster.ToPlayer());
}
m_targets.Update(m_caster);
// further actions done only for dest targets
if (!m_targets.HasDst())
return true;
// cache last transport
WorldObject transport = null;
// update effect destinations (in case of moved transport dest target)
foreach (var spellEffectInfo in m_spellInfo.GetEffects())
{
SpellDestination dest = m_destTargets[spellEffectInfo.EffectIndex];
if (dest.TransportGUID.IsEmpty())
continue;
if (transport == null || transport.GetGUID() != dest.TransportGUID)
transport = Global.ObjAccessor.GetWorldObject(m_caster, dest.TransportGUID);
if (transport != null)
{
dest.Position.Relocate(transport.GetPosition());
dest.Position.RelocateOffset(dest.TransportOffset);
}
}
return true;
}
public CurrentSpellTypes GetCurrentContainer()
{
if (m_spellInfo.IsNextMeleeSwingSpell())
return CurrentSpellTypes.Melee;
else if (IsAutoRepeat())
return CurrentSpellTypes.AutoRepeat;
else if (m_spellInfo.IsChanneled())
return CurrentSpellTypes.Channeled;
return CurrentSpellTypes.Generic;
}
public Difficulty GetCastDifficulty()
{
return m_caster.GetMap().GetDifficultyID();
}
bool CheckEffectTarget(Unit target, SpellEffectInfo spellEffectInfo, Position losPosition)
{
if (spellEffectInfo == null || !spellEffectInfo.IsEffect())
return false;
switch (spellEffectInfo.ApplyAuraName)
{
case AuraType.ModPossess:
case AuraType.ModCharm:
case AuraType.ModPossessPet:
case AuraType.AoeCharm:
if (target.IsTypeId(TypeId.Unit) && target.IsVehicle())
return false;
if (target.IsMounted())
return false;
if (!target.GetCharmerGUID().IsEmpty())
return false;
int damage = CalculateDamage(spellEffectInfo, target);
if (damage != 0)
if (target.GetLevelForTarget(m_caster) > damage)
return false;
break;
default:
break;
}
// check for ignore LOS on the effect itself
if (m_spellInfo.HasAttribute(SpellAttr2.CanTargetNotInLos) || Global.DisableMgr.IsDisabledFor(DisableType.Spell, m_spellInfo.Id, null, (byte)DisableFlags.SpellLOS))
return true;
// check if gameobject ignores LOS
GameObject gobCaster = m_caster.ToGameObject();
if (gobCaster != null)
if (gobCaster.GetGoInfo().GetRequireLOS() == 0)
return true;
// if spell is triggered, need to check for LOS disable on the aura triggering it and inherit that behaviour
if (IsTriggered() && m_triggeredByAuraSpell != null && (m_triggeredByAuraSpell.HasAttribute(SpellAttr2.CanTargetNotInLos) || Global.DisableMgr.IsDisabledFor(DisableType.Spell, m_triggeredByAuraSpell.Id, null, (byte)DisableFlags.SpellLOS)))
return true;
// @todo shit below shouldn't be here, but it's temporary
//Check targets for LOS visibility
switch (spellEffectInfo.Effect)
{
case SpellEffectName.SkinPlayerCorpse:
{
if (m_targets.GetCorpseTargetGUID().IsEmpty())
{
if (target.IsWithinLOSInMap(m_caster, LineOfSightChecks.All, ModelIgnoreFlags.M2) && target.HasUnitFlag(UnitFlags.Skinnable))
return true;
return false;
}
Corpse corpse = ObjectAccessor.GetCorpse(m_caster, m_targets.GetCorpseTargetGUID());
if (!corpse)
return false;
if (target.GetGUID() != corpse.GetOwnerGUID())
return false;
if (!corpse.HasDynamicFlag(UnitDynFlags.Lootable))
return false;
if (!corpse.IsWithinLOSInMap(m_caster, LineOfSightChecks.All, ModelIgnoreFlags.M2))
return false;
break;
}
default:
{
if (losPosition != null)
return target.IsWithinLOS(losPosition.GetPositionX(), losPosition.GetPositionY(), losPosition.GetPositionZ(), LineOfSightChecks.All, ModelIgnoreFlags.M2);
else
{
// Get GO cast coordinates if original caster . GO
WorldObject caster = null;
if (m_originalCasterGUID.IsGameObject())
caster = m_caster.GetMap().GetGameObject(m_originalCasterGUID);
if (!caster)
caster = m_caster;
if (target != m_caster && !target.IsWithinLOSInMap(caster, LineOfSightChecks.All, ModelIgnoreFlags.M2))
return false;
}
break;
}
}
return true;
}
bool CheckEffectTarget(GameObject target, SpellEffectInfo spellEffectInfo)
{
if (spellEffectInfo == null || !spellEffectInfo.IsEffect())
return false;
switch (spellEffectInfo.Effect)
{
case SpellEffectName.GameObjectDamage:
case SpellEffectName.GameobjectRepair:
case SpellEffectName.GameobjectSetDestructionState:
if (target.GetGoType() != GameObjectTypes.DestructibleBuilding)
return false;
break;
default:
break;
}
return true;
}
bool CheckEffectTarget(Item target, SpellEffectInfo spellEffectInfo)
{
if (spellEffectInfo == null || !spellEffectInfo.IsEffect())
return false;
return true;
}
bool IsAutoActionResetSpell()
{
if (IsTriggered())
return false;
if (m_casttime == 0 && m_spellInfo.HasAttribute(SpellAttr6.NotResetSwingIfInstant))
return false;
return true;
}
public bool IsPositive()
{
return m_spellInfo.IsPositive() && (m_triggeredByAuraSpell == null || m_triggeredByAuraSpell.IsPositive());
}
bool IsNeedSendToClient()
{
return m_SpellVisual.SpellXSpellVisualID != 0 || m_SpellVisual.ScriptVisualID != 0 || m_spellInfo.IsChanneled() ||
m_spellInfo.HasAttribute(SpellAttr8.AuraSendAmount) || m_spellInfo.HasHitDelay() || (m_triggeredByAuraSpell == null && !IsTriggered());
}
bool IsValidDeadOrAliveTarget(Unit target)
{
if (target.IsAlive())
return !m_spellInfo.IsRequiringDeadTarget();
if (m_spellInfo.IsAllowingDeadTarget())
return true;
return false;
}
void HandleLaunchPhase()
{
// handle effects with SPELL_EFFECT_HANDLE_LAUNCH mode
foreach (var spellEffectInfo in m_spellInfo.GetEffects())
{
// don't do anything for empty effect
if (!spellEffectInfo.IsEffect())
continue;
HandleEffects(null, null, null, spellEffectInfo, SpellEffectHandleMode.Launch);
}
PrepareTargetProcessing();
foreach (var spellEffectInfo in m_spellInfo.GetEffects())
{
float multiplier = 1.0f;
if ((m_applyMultiplierMask & (1 << (int)spellEffectInfo.EffectIndex)) != 0)
multiplier = spellEffectInfo.CalcDamageMultiplier(m_originalCaster, this);
foreach (TargetInfo target in m_UniqueTargetInfo)
{
uint mask = target.EffectMask;
if ((mask & (1 << (int)spellEffectInfo.EffectIndex)) == 0)
continue;
DoEffectOnLaunchTarget(target, multiplier, spellEffectInfo);
}
}
FinishTargetProcessing();
}
void DoEffectOnLaunchTarget(TargetInfo targetInfo, float multiplier, SpellEffectInfo spellEffectInfo)
{
Unit unit = null;
// In case spell hit target, do all effect on that target
if (targetInfo.MissCondition == SpellMissInfo.None)
unit = m_caster.GetGUID() == targetInfo.TargetGUID ? m_caster.ToUnit() : Global.ObjAccessor.GetUnit(m_caster, targetInfo.TargetGUID);
// In case spell reflect from target, do all effect on caster (if hit)
else if (targetInfo.MissCondition == SpellMissInfo.Reflect && targetInfo.ReflectResult == SpellMissInfo.None)
unit = m_caster.ToUnit();
if (unit == null)
return;
// This will only cause combat - the target will engage once the projectile hits (in DoAllEffectOnTarget)
if (m_originalCaster != null && targetInfo.MissCondition != SpellMissInfo.Evade && !m_originalCaster.IsFriendlyTo(unit) && (!m_spellInfo.IsPositive() || m_spellInfo.HasEffect(SpellEffectName.Dispel)) && (m_spellInfo.HasInitialAggro() || unit.IsEngaged()))
m_originalCaster.SetInCombatWith(unit);
m_damage = 0;
m_healing = 0;
HandleEffects(unit, null, null, spellEffectInfo, SpellEffectHandleMode.LaunchTarget);
if (m_originalCaster != null && m_damage > 0)
{
if (spellEffectInfo.IsTargetingArea() || spellEffectInfo.IsAreaAuraEffect() || spellEffectInfo.IsEffect(SpellEffectName.PersistentAreaAura))
{
m_damage = unit.CalculateAOEAvoidance(m_damage, (uint)m_spellInfo.SchoolMask, m_originalCaster.GetGUID());
if (m_originalCaster.IsPlayer())
{
// cap damage of player AOE
long targetAmount = GetUnitTargetCountForEffect(spellEffectInfo.EffectIndex);
if (targetAmount > 20)
m_damage = (int)(m_damage * 20 / targetAmount);
}
}
}
if ((m_applyMultiplierMask & (1 << (int)spellEffectInfo.EffectIndex)) != 0)
{
m_damage = (int)(m_damage * m_damageMultipliers[spellEffectInfo.EffectIndex]);
m_healing = (int)(m_healing * m_damageMultipliers[spellEffectInfo.EffectIndex]);
m_damageMultipliers[spellEffectInfo.EffectIndex] *= multiplier;
}
targetInfo.Damage += m_damage;
targetInfo.Healing += m_healing;
float critChance = m_spellValue.CriticalChance;
if (m_originalCaster != null)
{
if (critChance == 0)
critChance = m_originalCaster.SpellCritChanceDone(this, null, m_spellSchoolMask, m_attackType);
critChance = unit.SpellCritChanceTaken(m_originalCaster, this, null, m_spellSchoolMask, critChance, m_attackType);
}
targetInfo.IsCrit = RandomHelper.randChance(critChance);
}
SpellCastResult CanOpenLock(SpellEffectInfo effect, uint lockId, ref SkillType skillId, ref int reqSkillValue, ref int skillValue)
{
if (lockId == 0) // possible case for GO and maybe for items.
return SpellCastResult.SpellCastOk;
Unit unitCaster = m_caster.ToUnit();
if (unitCaster == null)
return SpellCastResult.BadTargets;
// Get LockInfo
var lockInfo = CliDB.LockStorage.LookupByKey(lockId);
if (lockInfo == null)
return SpellCastResult.BadTargets;
bool reqKey = false; // some locks not have reqs
for (int j = 0; j < SharedConst.MaxLockCase; ++j)
{
switch ((LockKeyType)lockInfo.LockType[j])
{
// check key item (many fit cases can be)
case LockKeyType.Item:
if (lockInfo.Index[j] != 0 && m_CastItem && m_CastItem.GetEntry() == lockInfo.Index[j])
return SpellCastResult.SpellCastOk;
reqKey = true;
break;
// check key skill (only single first fit case can be)
case LockKeyType.Skill:
{
reqKey = true;
// wrong locktype, skip
if (effect.MiscValue != lockInfo.Index[j])
continue;
skillId = SharedConst.SkillByLockType((LockType)lockInfo.Index[j]);
if (skillId != SkillType.None || lockInfo.Index[j] == (uint)LockType.Lockpicking)
{
reqSkillValue = lockInfo.Skill[j];
// castitem check: rogue using skeleton keys. the skill values should not be added in this case.
skillValue = 0;
if (!m_CastItem && unitCaster.IsTypeId(TypeId.Player))
skillValue = unitCaster.ToPlayer().GetSkillValue(skillId);
else if (lockInfo.Index[j] == (uint)LockType.Lockpicking)
skillValue = (int)unitCaster.GetLevel() * 5;
// skill bonus provided by casting spell (mostly item spells)
// add the effect base points modifier from the spell cast (cheat lock / skeleton key etc.)
if (effect.TargetA.GetTarget() == Targets.GameobjectItemTarget || effect.TargetB.GetTarget() == Targets.GameobjectItemTarget)
skillValue += effect.CalcValue();
if (skillValue < reqSkillValue)
return SpellCastResult.LowCastlevel;
}
return SpellCastResult.SpellCastOk;
}
case LockKeyType.Spell:
if (m_spellInfo.Id == lockInfo.Index[j])
return SpellCastResult.SpellCastOk;
reqKey = true;
break;
}
}
if (reqKey)
return SpellCastResult.BadTargets;
return SpellCastResult.SpellCastOk;
}
public void SetSpellValue(SpellValueMod mod, int value)
{
if (mod < SpellValueMod.End)
{
m_spellValue.EffectBasePoints[(int)mod] = value;
m_spellValue.CustomBasePointsMask |= 1u << (int)mod;
return;
}
switch (mod)
{
case SpellValueMod.RadiusMod:
m_spellValue.RadiusMod = (float)value / 10000;
break;
case SpellValueMod.MaxTargets:
m_spellValue.MaxAffectedTargets = (uint)value;
break;
case SpellValueMod.AuraStack:
m_spellValue.AuraStackAmount = value;
break;
case SpellValueMod.CritChance:
m_spellValue.CriticalChance = value / 100.0f; // @todo ugly /100 remove when basepoints are double
break;
case SpellValueMod.DurationPct:
m_spellValue.DurationMul = (float)value / 100.0f;
break;
case SpellValueMod.Duration:
m_spellValue.Duration.Set(value);
break;
}
}
void PrepareTargetProcessing()
{
}
void FinishTargetProcessing()
{
SendSpellExecuteLog();
}
void LoadScripts()
{
m_loadedScripts = Global.ScriptMgr.CreateSpellScripts(m_spellInfo.Id, this);
foreach (var script in m_loadedScripts)
{
Log.outDebug(LogFilter.Spells, "Spell.LoadScripts: Script `{0}` for spell `{1}` is loaded now", script._GetScriptName(), m_spellInfo.Id);
script.Register();
}
}
void CallScriptBeforeCastHandlers()
{
foreach (var script in m_loadedScripts)
{
script._PrepareScriptCall(SpellScriptHookType.BeforeCast);
foreach (var hook in script.BeforeCast)
hook.Call();
script._FinishScriptCall();
}
}
void CallScriptOnCastHandlers()
{
foreach (var script in m_loadedScripts)
{
script._PrepareScriptCall(SpellScriptHookType.OnCast);
foreach (var hook in script.OnCast)
hook.Call();
script._FinishScriptCall();
}
}
void CallScriptAfterCastHandlers()
{
foreach (var script in m_loadedScripts)
{
script._PrepareScriptCall(SpellScriptHookType.AfterCast);
foreach (var hook in script.AfterCast)
hook.Call();
script._FinishScriptCall();
}
}
SpellCastResult CallScriptCheckCastHandlers()
{
SpellCastResult retVal = SpellCastResult.SpellCastOk;
foreach (var script in m_loadedScripts)
{
script._PrepareScriptCall(SpellScriptHookType.CheckCast);
foreach (var hook in script.OnCheckCast)
{
SpellCastResult tempResult = hook.Call();
if (tempResult != SpellCastResult.SpellCastOk)
retVal = tempResult;
}
script._FinishScriptCall();
}
return retVal;
}
bool CallScriptEffectHandlers(uint effIndex, SpellEffectHandleMode mode)
{
// execute script effect handler hooks and check if effects was prevented
bool preventDefault = false;
foreach (var script in m_loadedScripts)
{
script._InitHit();
SpellScriptHookType hookType;
List<SpellScript.EffectHandler> effList;
switch (mode)
{
case SpellEffectHandleMode.Launch:
effList = script.OnEffectLaunch;
hookType = SpellScriptHookType.Launch;
break;
case SpellEffectHandleMode.LaunchTarget:
effList = script.OnEffectLaunchTarget;
hookType = SpellScriptHookType.LaunchTarget;
break;
case SpellEffectHandleMode.Hit:
effList = script.OnEffectHit;
hookType = SpellScriptHookType.EffectHit;
break;
case SpellEffectHandleMode.HitTarget:
effList = script.OnEffectHitTarget;
hookType = SpellScriptHookType.EffectHitTarget;
break;
default:
Cypher.Assert(false);
return false;
}
script._PrepareScriptCall(hookType);
foreach (var eff in effList)
{
// effect execution can be prevented
if (!script._IsEffectPrevented(effIndex) && eff.IsEffectAffected(m_spellInfo, effIndex))
eff.Call(effIndex);
}
if (!preventDefault)
preventDefault = script._IsDefaultEffectPrevented(effIndex);
script._FinishScriptCall();
}
return preventDefault;
}
void CallScriptSuccessfulDispel(uint effIndex)
{
foreach (var script in m_loadedScripts)
{
script._PrepareScriptCall(SpellScriptHookType.EffectSuccessfulDispel);
foreach (var hook in script.OnEffectSuccessfulDispel)
hook.Call(effIndex);
script._FinishScriptCall();
}
}
public void CallScriptBeforeHitHandlers(SpellMissInfo missInfo)
{
foreach (var script in m_loadedScripts)
{
script._InitHit();
script._PrepareScriptCall(SpellScriptHookType.BeforeHit);
foreach (var hook in script.BeforeHit)
hook.Call(missInfo);
script._FinishScriptCall();
}
}
public void CallScriptOnHitHandlers()
{
foreach (var script in m_loadedScripts)
{
script._PrepareScriptCall(SpellScriptHookType.Hit);
foreach (var hook in script.OnHit)
hook.Call();
script._FinishScriptCall();
}
}
public void CallScriptAfterHitHandlers()
{
foreach (var script in m_loadedScripts)
{
script._PrepareScriptCall(SpellScriptHookType.AfterHit);
foreach (var hook in script.AfterHit)
hook.Call();
script._FinishScriptCall();
}
}
public void CallScriptCalcCritChanceHandlers(Unit victim, ref float critChance)
{
foreach (var loadedScript in m_loadedScripts)
{
loadedScript._PrepareScriptCall(SpellScriptHookType.CalcCritChance);
foreach (var hook in loadedScript.OnCalcCritChance)
hook.Call(victim, ref critChance);
loadedScript._FinishScriptCall();
}
}
void CallScriptObjectAreaTargetSelectHandlers(List<WorldObject> targets, uint effIndex, SpellImplicitTargetInfo targetType)
{
foreach (var script in m_loadedScripts)
{
script._PrepareScriptCall(SpellScriptHookType.ObjectAreaTargetSelect);
foreach (var hook in script.OnObjectAreaTargetSelect)
if (hook.IsEffectAffected(m_spellInfo, effIndex) && targetType.GetTarget() == hook.GetTarget())
hook.Call(targets);
script._FinishScriptCall();
}
}
void CallScriptObjectTargetSelectHandlers(ref WorldObject target, uint effIndex, SpellImplicitTargetInfo targetType)
{
foreach (var script in m_loadedScripts)
{
script._PrepareScriptCall(SpellScriptHookType.ObjectTargetSelect);
foreach (var hook in script.OnObjectTargetSelect)
if (hook.IsEffectAffected(m_spellInfo, effIndex) && targetType.GetTarget() == hook.GetTarget())
hook.Call(ref target);
script._FinishScriptCall();
}
}
void CallScriptDestinationTargetSelectHandlers(ref SpellDestination target, uint effIndex, SpellImplicitTargetInfo targetType)
{
foreach (var script in m_loadedScripts)
{
script._PrepareScriptCall(SpellScriptHookType.DestinationTargetSelect);
foreach (var hook in script.OnDestinationTargetSelect)
if (hook.IsEffectAffected(m_spellInfo, effIndex) && targetType.GetTarget() == hook.GetTarget())
hook.Call(ref target);
script._FinishScriptCall();
}
}
bool CheckScriptEffectImplicitTargets(uint effIndex, uint effIndexToCheck)
{
// Skip if there are not any script
if (m_loadedScripts.Empty())
return true;
foreach (var script in m_loadedScripts)
{
foreach (var hook in script.OnObjectTargetSelect)
if ((hook.IsEffectAffected(m_spellInfo, effIndex) && !hook.IsEffectAffected(m_spellInfo, effIndexToCheck)) ||
(!hook.IsEffectAffected(m_spellInfo, effIndex) && hook.IsEffectAffected(m_spellInfo, effIndexToCheck)))
return false;
foreach (var hook in script.OnObjectAreaTargetSelect)
if ((hook.IsEffectAffected(m_spellInfo, effIndex) && !hook.IsEffectAffected(m_spellInfo, effIndexToCheck)) ||
(!hook.IsEffectAffected(m_spellInfo, effIndex) && hook.IsEffectAffected(m_spellInfo, effIndexToCheck)))
return false;
}
return true;
}
public bool CanExecuteTriggersOnHit(uint effMask, SpellInfo triggeredByAura = null)
{
bool only_on_caster = (triggeredByAura != null && triggeredByAura.HasAttribute(SpellAttr4.ProcOnlyOnCaster));
// If triggeredByAura has SPELL_ATTR4_PROC_ONLY_ON_CASTER then it can only proc on a casted spell with TARGET_UNIT_CASTER
foreach (var spellEffectInfo in m_spellInfo.GetEffects())
{
if ((effMask & (1 << (int)spellEffectInfo.EffectIndex)) != 0 && (!only_on_caster || (spellEffectInfo.TargetA.GetTarget() == Targets.UnitCaster)))
return true;
}
return false;
}
void PrepareTriggersExecutedOnHit()
{
Unit unitCaster = m_caster.ToUnit();
if (unitCaster == null)
return;
// handle SPELL_AURA_ADD_TARGET_TRIGGER auras:
// save auras which were present on spell caster on cast, to prevent triggered auras from affecting caster
// and to correctly calculate proc chance when combopoints are present
var targetTriggers = unitCaster.GetAuraEffectsByType(AuraType.AddTargetTrigger);
foreach (var aurEff in targetTriggers)
{
if (!aurEff.IsAffectingSpell(m_spellInfo))
continue;
SpellInfo spellInfo = Global.SpellMgr.GetSpellInfo(aurEff.GetSpellEffectInfo().TriggerSpell, GetCastDifficulty());
if (spellInfo != null)
{
// calculate the chance using spell base amount, because aura amount is not updated on combo-points change
// this possibly needs fixing
int auraBaseAmount = aurEff.GetBaseAmount();
// proc chance is stored in effect amount
int chance = unitCaster.CalculateSpellDamage(null, aurEff.GetSpellEffectInfo(), auraBaseAmount);
chance *= aurEff.GetBase().GetStackAmount();
// build trigger and add to the list
m_hitTriggerSpells.Add(new HitTriggerSpell(spellInfo, aurEff.GetSpellInfo(), chance));
}
}
}
bool CanHaveGlobalCooldown(WorldObject caster)
{
// Only players or controlled units have global cooldown
if (!caster.IsPlayer() && (!caster.IsCreature() || caster.ToCreature().GetCharmInfo() == null))
return false;
return true;
}
bool HasGlobalCooldown()
{
if (!CanHaveGlobalCooldown(m_caster))
return false;
return m_caster.ToUnit().GetSpellHistory().HasGlobalCooldown(m_spellInfo);
}
void TriggerGlobalCooldown()
{
if (!CanHaveGlobalCooldown(m_caster))
return;
TimeSpan gcd = TimeSpan.FromMilliseconds(m_spellInfo.StartRecoveryTime);
if (gcd == TimeSpan.Zero || m_spellInfo.StartRecoveryCategory == 0)
return;
if (m_caster.IsTypeId(TypeId.Player))
if (m_caster.ToPlayer().GetCommandStatus(PlayerCommandStates.Cooldown))
return;
TimeSpan MinGCD = TimeSpan.FromMilliseconds(750);
TimeSpan MaxGCD = TimeSpan.FromMilliseconds(1500);
// Global cooldown can't leave range 1..1.5 secs
// There are some spells (mostly not casted directly by player) that have < 1 sec and > 1.5 sec global cooldowns
// but as tests show are not affected by any spell mods.
if (gcd >= MinGCD && gcd <= MaxGCD)
{
// gcd modifier auras are applied only to own spells and only players have such mods
Player modOwner = m_caster.GetSpellModOwner();
if (modOwner)
{
int intGcd = (int)gcd.TotalMilliseconds;
modOwner.ApplySpellMod(m_spellInfo, SpellModOp.StartCooldown, ref intGcd, this);
gcd = TimeSpan.FromMilliseconds(intGcd);
}
bool isMeleeOrRangedSpell = m_spellInfo.DmgClass == SpellDmgClass.Melee || m_spellInfo.DmgClass == SpellDmgClass.Ranged ||
m_spellInfo.HasAttribute(SpellAttr0.ReqAmmo) || m_spellInfo.HasAttribute(SpellAttr0.Ability);
// Apply haste rating
if (gcd > MinGCD && (m_spellInfo.StartRecoveryCategory == 133 && !isMeleeOrRangedSpell))
{
gcd = TimeSpan.FromMilliseconds(gcd.TotalMilliseconds * m_caster.ToUnit().m_unitData.ModSpellHaste);
int intGcd = (int)gcd.TotalMilliseconds;
MathFunctions.RoundToInterval(ref intGcd, 750, 1500);
gcd = TimeSpan.FromMilliseconds(intGcd);
}
if (gcd > MinGCD && m_caster.ToUnit().HasAuraTypeWithAffectMask(AuraType.ModGlobalCooldownByHasteRegen, m_spellInfo))
{
gcd = TimeSpan.FromMilliseconds(gcd.TotalMilliseconds * m_caster.ToUnit().m_unitData.ModHasteRegen);
int intGcd = (int)gcd.TotalMilliseconds;
MathFunctions.RoundToInterval(ref intGcd, 750, 1500);
gcd = TimeSpan.FromMilliseconds(intGcd);
}
}
m_caster.ToUnit().GetSpellHistory().AddGlobalCooldown(m_spellInfo, gcd);
}
void CancelGlobalCooldown()
{
if (!CanHaveGlobalCooldown(m_caster))
return;
if (m_spellInfo.StartRecoveryTime == 0)
return;
// Cancel global cooldown when interrupting current cast
if (m_caster.ToUnit().GetCurrentSpell(CurrentSpellTypes.Generic) != this)
return;
m_caster.ToUnit().GetSpellHistory().CancelGlobalCooldown(m_spellInfo);
}
string GetDebugInfo()
{
return $"Id: {GetSpellInfo().Id} Name: '{GetSpellInfo().SpellName[Global.WorldMgr.GetDefaultDbcLocale()]}' OriginalCaster: {m_originalCasterGUID} State: {GetState()}";
}
List<SpellScript> m_loadedScripts = new();
int CalculateDamage(SpellEffectInfo spellEffectInfo, Unit target)
{
return CalculateDamage(spellEffectInfo, target, out _);
}
int CalculateDamage(SpellEffectInfo spellEffectInfo, Unit target, out float variance)
{
bool needRecalculateBasePoints = (m_spellValue.CustomBasePointsMask & (1 << (int)spellEffectInfo.EffectIndex)) == 0;
return m_caster.CalculateSpellDamage(out variance, target, spellEffectInfo, needRecalculateBasePoints ? null : m_spellValue.EffectBasePoints[spellEffectInfo.EffectIndex], m_castItemEntry, m_castItemLevel);
}
public SpellState GetState()
{
return m_spellState;
}
public void SetState(SpellState state)
{
m_spellState = state;
}
void CheckSrc()
{
if (!m_targets.HasSrc()) m_targets.SetSrc(m_caster);
}
void CheckDst()
{
if (!m_targets.HasDst()) m_targets.SetDst(m_caster);
}
public int GetCastTime()
{
return m_casttime;
}
bool IsAutoRepeat()
{
return m_autoRepeat;
}
void SetAutoRepeat(bool rep)
{
m_autoRepeat = rep;
}
void ReSetTimer()
{
m_timer = m_casttime > 0 ? m_casttime : 0;
}
public bool IsTriggered() { return _triggeredCastFlags.HasAnyFlag(TriggerCastFlags.FullMask); }
public bool IsTriggeredByAura(SpellInfo auraSpellInfo) { return (auraSpellInfo == m_triggeredByAuraSpell); }
public bool IsIgnoringCooldowns() { return _triggeredCastFlags.HasAnyFlag(TriggerCastFlags.IgnoreSpellAndCategoryCD); }
public bool IsFocusDisabled() { return _triggeredCastFlags.HasFlag(TriggerCastFlags.IgnoreSetFacing) || (m_spellInfo.IsChanneled() && !m_spellInfo.HasAttribute(SpellAttr1.ChannelTrackTarget)); }
public bool IsProcDisabled() { return _triggeredCastFlags.HasAnyFlag(TriggerCastFlags.DisallowProcEvents); }
public bool IsChannelActive() { return m_caster.IsUnit() && m_caster.ToUnit().GetChannelSpellId() != 0; }
public bool IsDeletable()
{
return !m_referencedFromCurrentSpell && !m_executedCurrently;
}
public void SetReferencedFromCurrent(bool yes)
{
m_referencedFromCurrentSpell = yes;
}
public bool IsInterruptable()
{
return !m_executedCurrently;
}
void SetExecutedCurrently(bool yes)
{
m_executedCurrently = yes;
}
public ulong GetDelayStart()
{
return m_delayStart;
}
public void SetDelayStart(ulong m_time)
{
m_delayStart = m_time;
}
public ulong GetDelayMoment()
{
return m_delayMoment;
}
public WorldObject GetCaster()
{
return m_caster;
}
public Unit GetOriginalCaster()
{
return m_originalCaster;
}
public SpellInfo GetSpellInfo()
{
return m_spellInfo;
}
public List<SpellPowerCost> GetPowerCost()
{
return m_powerCost;
}
bool IsDelayableNoMore()
{
if (m_delayAtDamageCount >= 2)
return true;
++m_delayAtDamageCount;
return false;
}
bool DontReport()
{
return Convert.ToBoolean(_triggeredCastFlags & TriggerCastFlags.DontReportCastError);
}
public SpellInfo GetTriggeredByAuraSpell() { return m_triggeredByAuraSpell; }
public static implicit operator bool(Spell spell)
{
return spell != null;
}
#region Fields
Dictionary<SpellEffectName, SpellLogEffect> _executeLogEffects = new();
PathGenerator m_preGeneratedPath;
public SpellInfo m_spellInfo;
public Item m_CastItem;
public ObjectGuid m_castItemGUID;
public uint m_castItemEntry;
public int m_castItemLevel;
public ObjectGuid m_castId;
public ObjectGuid m_originalCastId;
public bool m_fromClient;
public SpellCastFlagsEx m_castFlagsEx;
public SpellMisc m_misc;
public SpellCastVisual m_SpellVisual;
public SpellCastTargets m_targets;
public sbyte m_comboPointGain;
public SpellCustomErrors m_customError;
public List<Aura> m_appliedMods;
WorldObject m_caster;
public SpellValue m_spellValue;
ObjectGuid m_originalCasterGUID;
Unit m_originalCaster;
public Spell m_selfContainer;
//Spell data
internal SpellSchoolMask m_spellSchoolMask; // Spell school (can be overwrite for some spells (wand shoot for example)
internal WeaponAttackType m_attackType; // For weapon based attack
List<SpellPowerCost> m_powerCost = new();
int m_casttime; // Calculated spell cast time initialized only in Spell.prepare
int m_channeledDuration; // Calculated channeled spell duration in order to calculate correct pushback.
bool m_canReflect; // can reflect this spell?
bool m_autoRepeat;
byte m_runesState;
byte m_delayAtDamageCount;
// Delayed spells system
ulong m_delayStart; // time of spell delay start, filled by event handler, zero = just started
ulong m_delayMoment; // moment of next delay call, used internally
bool m_launchHandled; // were launch actions handled
bool m_immediateHandled; // were immediate actions handled? (used by delayed spells only)
// These vars are used in both delayed spell system and modified immediate spell system
bool m_referencedFromCurrentSpell;
bool m_executedCurrently;
internal bool m_needComboPoints;
uint m_applyMultiplierMask;
float[] m_damageMultipliers = new float[SpellConst.MaxEffects];
// Current targets, to be used in SpellEffects (MUST BE USED ONLY IN SPELL EFFECTS)
public Unit unitTarget;
public Item itemTarget;
public GameObject gameObjTarget;
public WorldLocation destTarget;
public int damage;
public SpellMissInfo targetMissInfo;
float _variance;
SpellEffectHandleMode effectHandleMode;
public SpellEffectInfo effectInfo;
// used in effects handlers
Unit unitCaster;
internal UnitAura spellAura;
internal DynObjAura dynObjAura;
// -------------------------------------------
GameObject focusObject;
// Damage and healing in effects need just calculate
public int m_damage; // Damge in effects count here
public int m_healing; // Healing in effects count here
// ******************************************
// Spell trigger system
// ******************************************
internal ProcFlags m_procAttacker; // Attacker trigger flags
internal ProcFlags m_procVictim; // Victim trigger flags
internal ProcFlagsHit m_hitMask;
// *****************************************
// Spell target subsystem
// *****************************************
// Targets store structures and data
List<TargetInfo> m_UniqueTargetInfo = new();
uint m_channelTargetEffectMask; // Mask req. alive targets
List<GOTargetInfo> m_UniqueGOTargetInfo = new();
List<ItemTargetInfo> m_UniqueItemInfo = new();
SpellDestination[] m_destTargets = new SpellDestination[SpellConst.MaxEffects];
List<HitTriggerSpell> m_hitTriggerSpells = new();
SpellState m_spellState;
int m_timer;
SpellEvent _spellEvent;
TriggerCastFlags _triggeredCastFlags;
// if need this can be replaced by Aura copy
// we can't store original aura link to prevent access to deleted auras
// and in same time need aura data and after aura deleting.
public SpellInfo m_triggeredByAuraSpell;
#endregion
}
[StructLayout(LayoutKind.Explicit)]
public struct SpellMisc
{
// Alternate names for this value
[FieldOffset(0)]
public uint TalentId;
[FieldOffset(0)]
public uint SpellId;
[FieldOffset(0)]
public uint SpecializationId;
// SPELL_EFFECT_SET_FOLLOWER_QUALITY
// SPELL_EFFECT_INCREASE_FOLLOWER_ITEM_LEVEL
// SPELL_EFFECT_INCREASE_FOLLOWER_EXPERIENCE
// SPELL_EFFECT_RANDOMIZE_FOLLOWER_ABILITIES
// SPELL_EFFECT_LEARN_FOLLOWER_ABILITY
[FieldOffset(0)]
public uint FollowerId;
[FieldOffset(4)]
public uint FollowerAbilityId; // only SPELL_EFFECT_LEARN_FOLLOWER_ABILITY
// SPELL_EFFECT_FINISH_GARRISON_MISSION
[FieldOffset(0)]
public uint GarrMissionId;
// SPELL_EFFECT_UPGRADE_HEIRLOOM
[FieldOffset(0)]
public uint ItemId;
[FieldOffset(0)]
public uint Data0;
[FieldOffset(4)]
public uint Data1;
public uint[] GetRawData()
{
return new uint[] { Data0, Data1 };
}
}
public struct HitTriggerSpell
{
public HitTriggerSpell(SpellInfo spellInfo, SpellInfo auraSpellInfo, int procChance)
{
triggeredSpell = spellInfo;
triggeredByAura = auraSpellInfo;
chance = procChance;
}
public SpellInfo triggeredSpell;
public SpellInfo triggeredByAura;
// ubyte triggeredByEffIdx This might be needed at a later stage - No need known for now
public int chance;
}
public enum SpellEffectHandleMode
{
Launch,
LaunchTarget,
Hit,
HitTarget
}
public class SkillStatusData
{
public SkillStatusData(uint _pos, SkillState state)
{
Pos = (byte)_pos;
State = state;
}
public byte Pos;
public SkillState State;
}
public class SpellChainNode
{
public SpellInfo prev;
public SpellInfo next;
public SpellInfo first;
public SpellInfo last;
public byte rank;
}
public class SpellLearnSkillNode
{
public SkillType skill;
public ushort step;
public ushort value; // 0 - max skill value for player level
public ushort maxvalue; // 0 - max skill value for player level
}
public class SpellLearnSpellNode
{
public uint Spell;
public uint OverridesSpell;
public bool Active; // show in spellbook or not
public bool AutoLearned; // This marks the spell as automatically learned from another source that - will only be used for unlearning
}
public class SpellDestination
{
public SpellDestination()
{
Position = new WorldLocation();
TransportGUID = ObjectGuid.Empty;
TransportOffset = new Position();
}
public SpellDestination(float x, float y, float z, float orientation = 0.0f, uint mapId = 0xFFFFFFFF) : this()
{
Position.Relocate(x, y, z, orientation);
TransportGUID = ObjectGuid.Empty;
Position.SetMapId(mapId);
}
public SpellDestination(Position pos) : this()
{
Position.Relocate(pos);
TransportGUID = ObjectGuid.Empty;
}
public SpellDestination(WorldObject wObj) : this()
{
TransportGUID = wObj.GetTransGUID();
TransportOffset.Relocate(wObj.GetTransOffsetX(), wObj.GetTransOffsetY(), wObj.GetTransOffsetZ(), wObj.GetTransOffsetO());
Position.Relocate(wObj.GetPosition());
}
public void Relocate(Position pos)
{
if (!TransportGUID.IsEmpty())
{
Position offset;
Position.GetPositionOffsetTo(pos, out offset);
TransportOffset.RelocateOffset(offset);
}
Position.Relocate(pos);
}
public void RelocateOffset(Position offset)
{
if (!TransportGUID.IsEmpty())
TransportOffset.RelocateOffset(offset);
Position.RelocateOffset(offset);
}
public WorldLocation Position;
public ObjectGuid TransportGUID;
public Position TransportOffset;
}
public class TargetInfoBase
{
public uint EffectMask;
public virtual void PreprocessTarget(Spell spell) { }
public virtual void DoTargetSpellHit(Spell spell, SpellEffectInfo spellEffectInfo) { }
public virtual void DoDamageAndTriggers(Spell spell) { }
}
public class TargetInfo : TargetInfoBase
{
public ObjectGuid TargetGUID;
public ulong TimeDelay;
public int Damage;
public int Healing;
public SpellMissInfo MissCondition;
public SpellMissInfo ReflectResult;
public bool IsAlive;
public bool IsCrit;
// info set at PreprocessTarget, used by DoTargetSpellHit
public DiminishingGroup DRGroup;
public int AuraDuration;
public int[] AuraBasePoints = new int[SpellConst.MaxEffects];
public bool Positive = true;
public UnitAura HitAura;
Unit _spellHitTarget; // changed for example by reflect
bool _enablePVP; // need to enable PVP at DoDamageAndTriggers?
public override void PreprocessTarget(Spell spell)
{
Unit unit = spell.GetCaster().GetGUID() == TargetGUID ? spell.GetCaster().ToUnit() : Global.ObjAccessor.GetUnit(spell.GetCaster(), TargetGUID);
if (unit == null)
return;
// Need init unitTarget by default unit (can changed in code on reflect)
spell.unitTarget = unit;
// Reset damage/healing counter
spell.m_damage = Damage;
spell.m_healing = Healing;
_spellHitTarget = null;
if (MissCondition == SpellMissInfo.None)
_spellHitTarget = unit;
else if (MissCondition == SpellMissInfo.Reflect && ReflectResult == SpellMissInfo.None)
_spellHitTarget = spell.GetCaster().ToUnit();
// Ensure that a player target is put in combat by a taunt, even if they result immune clientside
if ((MissCondition == SpellMissInfo.Immune || MissCondition == SpellMissInfo.Immune2) && spell.GetCaster().IsPlayer() && unit.IsPlayer() && spell.GetCaster().IsValidAttackTarget(unit, spell.GetSpellInfo()))
unit.SetInCombatWith(spell.GetCaster().ToPlayer());
_enablePVP = false; // need to check PvP state before spell effects, but act on it afterwards
if (_spellHitTarget)
{
// if target is flagged for pvp also flag caster if a player
if (unit.IsPvP() && spell.GetCaster().IsPlayer())
_enablePVP = true; // Decide on PvP flagging now, but act on it later.
SpellMissInfo missInfo = spell.PreprocessSpellHit(_spellHitTarget, this);
if (missInfo != SpellMissInfo.None)
{
if (missInfo != SpellMissInfo.Miss)
spell.GetCaster().SendSpellMiss(unit, spell.m_spellInfo.Id, missInfo);
spell.m_damage = 0;
spell.m_healing = 0;
_spellHitTarget = null;
}
}
spell.CallScriptOnHitHandlers();
// scripts can modify damage/healing for current target, save them
Damage = spell.m_damage;
Healing = spell.m_healing;
}
public override void DoTargetSpellHit(Spell spell, SpellEffectInfo spellEffectInfo)
{
Unit unit = spell.GetCaster().GetGUID() == TargetGUID ? spell.GetCaster().ToUnit() : Global.ObjAccessor.GetUnit(spell.GetCaster(), TargetGUID);
if (unit == null)
return;
// Need init unitTarget by default unit (can changed in code on reflect)
// Or on missInfo != SPELL_MISS_NONE unitTarget undefined (but need in trigger subsystem)
spell.unitTarget = unit;
spell.targetMissInfo = MissCondition;
// Reset damage/healing counter
spell.m_damage = Damage;
spell.m_healing = Healing;
if (unit.IsAlive() != IsAlive)
return;
if (spell.GetState() == SpellState.Delayed && !spell.IsPositive() && (GameTime.GetGameTimeMS() - TimeDelay) <= unit.LastSanctuaryTime)
return; // No missinfo in that case
if (_spellHitTarget)
spell.DoSpellEffectHit(_spellHitTarget, spellEffectInfo, this);
// scripts can modify damage/healing for current target, save them
Damage = spell.m_damage;
Healing = spell.m_healing;
}
public override void DoDamageAndTriggers(Spell spell)
{
Unit unit = spell.GetCaster().GetGUID() == TargetGUID ? spell.GetCaster().ToUnit() : Global.ObjAccessor.GetUnit(spell.GetCaster(), TargetGUID);
if (unit == null)
return;
// other targets executed before this one changed pointer
spell.unitTarget = unit;
if (_spellHitTarget)
spell.unitTarget = _spellHitTarget;
// Reset damage/healing counter
spell.m_damage = Damage;
spell.m_healing = Healing;
// Get original caster (if exist) and calculate damage/healing from him data
// Skip if m_originalCaster not available
Unit caster = spell.GetOriginalCaster() ? spell.GetOriginalCaster() : spell.GetCaster().ToUnit();
if (caster != null)
{
// Fill base trigger info
ProcFlags procAttacker = spell.m_procAttacker;
ProcFlags procVictim = spell.m_procVictim;
ProcFlagsSpellType procSpellType = ProcFlagsSpellType.None;
ProcFlagsHit hitMask = ProcFlagsHit.None;
// Spells with this flag cannot trigger if effect is cast on self
bool canEffectTrigger = !spell.m_spellInfo.HasAttribute(SpellAttr3.CantTriggerProc) && spell.unitTarget.CanProc() &&
(spell.CanExecuteTriggersOnHit(EffectMask) || MissCondition == SpellMissInfo.Immune || MissCondition == SpellMissInfo.Immune2);
// Trigger info was not filled in Spell::prepareDataForTriggerSystem - we do it now
if (canEffectTrigger && procAttacker == 0 && procVictim == 0)
{
bool positive = true;
if (spell.m_damage > 0)
positive = false;
else if (spell.m_healing == 0)
{
for (uint i = 0; i < spell.m_spellInfo.GetEffects().Count; ++i)
{
// in case of immunity, check all effects to choose correct procFlags, as none has technically hit
if (EffectMask != 0 && (EffectMask & (1 << (int)i)) == 0)
continue;
if (!spell.m_spellInfo.IsPositiveEffect(i))
{
positive = false;
break;
}
}
}
switch (spell.m_spellInfo.DmgClass)
{
case SpellDmgClass.Magic:
if (positive)
{
procAttacker |= ProcFlags.DoneSpellMagicDmgClassPos;
procVictim |= ProcFlags.TakenSpellMagicDmgClassPos;
}
else
{
procAttacker |= ProcFlags.DoneSpellMagicDmgClassNeg;
procVictim |= ProcFlags.TakenSpellMagicDmgClassNeg;
}
break;
case SpellDmgClass.None:
if (positive)
{
procAttacker |= ProcFlags.DoneSpellNoneDmgClassPos;
procVictim |= ProcFlags.TakenSpellNoneDmgClassPos;
}
else
{
procAttacker |= ProcFlags.DoneSpellNoneDmgClassNeg;
procVictim |= ProcFlags.TakenSpellNoneDmgClassNeg;
}
break;
}
}
// All calculated do it!
// Do healing
DamageInfo spellDamageInfo = null;
HealInfo healInfo = null;
if (spell.m_healing > 0)
{
int addhealth = spell.m_healing;
if (IsCrit)
{
hitMask |= ProcFlagsHit.Critical;
addhealth = Unit.SpellCriticalHealingBonus(caster, spell.m_spellInfo, addhealth, null);
}
else
hitMask |= ProcFlagsHit.Normal;
healInfo = new(caster, spell.unitTarget, (uint)addhealth, spell.m_spellInfo, spell.m_spellInfo.GetSchoolMask());
caster.HealBySpell(healInfo, IsCrit);
spell.unitTarget.GetThreatManager().ForwardThreatForAssistingMe(caster, healInfo.GetEffectiveHeal() * 0.5f, spell.m_spellInfo);
spell.m_healing = (int)healInfo.GetEffectiveHeal();
procSpellType |= ProcFlagsSpellType.Heal;
}
// Do damage
if (spell.m_damage > 0)
{
// Fill base damage struct (unitTarget - is real spell target)
SpellNonMeleeDamage damageInfo = new(caster, spell.unitTarget, spell.m_spellInfo, spell.m_SpellVisual, spell.m_spellSchoolMask, spell.m_castId);
// Check damage immunity
if (spell.unitTarget.IsImmunedToDamage(spell.m_spellInfo))
{
hitMask = ProcFlagsHit.Immune;
spell.m_damage = 0;
// no packet found in sniffs
}
else
{
// Add bonuses and fill damageInfo struct
caster.CalculateSpellDamageTaken(damageInfo, spell.m_damage, spell.m_spellInfo, spell.m_attackType, IsCrit);
Unit.DealDamageMods(damageInfo.attacker, damageInfo.target, ref damageInfo.damage, ref damageInfo.absorb);
hitMask |= Unit.CreateProcHitMask(damageInfo, MissCondition);
procVictim |= ProcFlags.TakenDamage;
spell.m_damage = (int)damageInfo.damage;
caster.DealSpellDamage(damageInfo, true);
// Send log damage message to client
caster.SendSpellNonMeleeDamageLog(damageInfo);
}
// Do triggers for unit
if (canEffectTrigger)
{
spellDamageInfo = new(damageInfo, DamageEffectType.SpellDirect, spell.m_attackType, hitMask);
procSpellType |= ProcFlagsSpellType.Damage;
if (caster.IsPlayer() && !spell.m_spellInfo.HasAttribute(SpellAttr0.StopAttackTarget) && !spell.m_spellInfo.HasAttribute(SpellAttr4.SuppressWeaponProcs) &&
(spell.m_spellInfo.DmgClass == SpellDmgClass.Melee || spell.m_spellInfo.DmgClass == SpellDmgClass.Ranged))
caster.ToPlayer().CastItemCombatSpell(spellDamageInfo);
}
}
// Passive spell hits/misses or active spells only misses (only triggers)
if (spell.m_damage <= 0 && spell.m_healing <= 0)
{
// Fill base damage struct (unitTarget - is real spell target)
SpellNonMeleeDamage damageInfo = new(caster, spell.unitTarget, spell.m_spellInfo, spell.m_SpellVisual, spell.m_spellSchoolMask);
hitMask |= Unit.CreateProcHitMask(damageInfo, MissCondition);
// Do triggers for unit
if (canEffectTrigger)
{
spellDamageInfo = new(damageInfo, DamageEffectType.NoDamage, spell.m_attackType, hitMask);
procSpellType |= ProcFlagsSpellType.NoDmgHeal;
}
// Failed Pickpocket, reveal rogue
if (MissCondition == SpellMissInfo.Resist && spell.m_spellInfo.HasAttribute(SpellCustomAttributes.PickPocket) && spell.unitTarget.IsCreature())
{
Unit unitCaster = spell.GetCaster().ToUnit();
unitCaster.RemoveAurasWithInterruptFlags(SpellAuraInterruptFlags.Interacting);
spell.unitTarget.ToCreature().EngageWithTarget(unitCaster);
}
}
// Do triggers for unit
if (canEffectTrigger)
{
Unit.ProcSkillsAndAuras(caster, spell.unitTarget, procAttacker, procVictim, procSpellType, ProcFlagsSpellPhase.Hit, hitMask, spell, spellDamageInfo, healInfo);
// item spells (spell hit of non-damage spell may also activate items, for example seal of corruption hidden hit)
if (caster.IsPlayer() && procSpellType.HasAnyFlag(ProcFlagsSpellType.Damage | ProcFlagsSpellType.NoDmgHeal))
{
if (spell.m_spellInfo.DmgClass == SpellDmgClass.Melee || spell.m_spellInfo.DmgClass == SpellDmgClass.Ranged)
if (!spell.m_spellInfo.HasAttribute(SpellAttr0.StopAttackTarget) && !spell.m_spellInfo.HasAttribute(SpellAttr4.SuppressWeaponProcs))
caster.ToPlayer().CastItemCombatSpell(spellDamageInfo);
}
}
// set hitmask for finish procs
spell.m_hitMask |= hitMask;
// Do not take combo points on dodge and miss
if (MissCondition != SpellMissInfo.None && spell.m_needComboPoints && spell.m_targets.GetUnitTargetGUID() == TargetGUID)
spell.m_needComboPoints = false;
// _spellHitTarget can be null if spell is missed in DoSpellHitOnUnit
if (MissCondition != SpellMissInfo.Evade && _spellHitTarget && !spell.GetCaster().IsFriendlyTo(unit) && (!spell.IsPositive() || spell.m_spellInfo.HasEffect(SpellEffectName.Dispel)))
{
Unit unitCaster = spell.GetCaster().ToUnit();
if (unitCaster != null)
unitCaster.AtTargetAttacked(unit, spell.m_spellInfo.HasInitialAggro());
if (!unit.IsStandState())
unit.SetStandState(UnitStandStateType.Stand);
}
// Check for SPELL_ATTR7_INTERRUPT_ONLY_NONPLAYER
if (MissCondition == SpellMissInfo.None && spell.m_spellInfo.HasAttribute(SpellAttr7.InterruptOnlyNonplayer) && !unit.IsPlayer())
caster.CastSpell(unit, 32747, new CastSpellExtraArgs(TriggerCastFlags.FullMask).SetOriginalCastId(spell.m_castId));
}
if (_spellHitTarget)
{
//AI functions
Creature cHitTarget = _spellHitTarget.ToCreature();
if (cHitTarget != null)
{
CreatureAI hitTargetAI = cHitTarget.GetAI();
if (hitTargetAI != null)
{
if (spell.GetCaster().IsGameObject())
hitTargetAI.SpellHitByGameObject(spell.GetCaster().ToGameObject(), spell.m_spellInfo);
else
hitTargetAI.SpellHit(spell.GetCaster().ToUnit(), spell.m_spellInfo);
}
}
if (spell.GetCaster().IsCreature() && spell.GetCaster().ToCreature().IsAIEnabled())
spell.GetCaster().ToCreature().GetAI().SpellHitTarget(_spellHitTarget, spell.m_spellInfo);
else if (spell.GetCaster().IsGameObject() && spell.GetCaster().ToGameObject().GetAI() != null)
spell.GetCaster().ToGameObject().GetAI().SpellHitTarget(_spellHitTarget, spell.m_spellInfo);
if (HitAura != null)
{
AuraApplication aurApp = HitAura.GetApplicationOfTarget(_spellHitTarget.GetGUID());
if (aurApp != null)
{
// only apply unapplied effects (for reapply case)
uint effMask = EffectMask & aurApp.GetEffectsToApply();
for (uint i = 0; i < spell.m_spellInfo.GetEffects().Count; ++i)
if ((effMask & (1 << (int)i)) != 0 && aurApp.HasEffect(i))
effMask &= ~(1u << (int)i);
if (effMask != 0)
_spellHitTarget._ApplyAura(aurApp, effMask);
}
}
// Needs to be called after dealing damage/healing to not remove breaking on damage auras
spell.DoTriggersOnSpellHit(_spellHitTarget, EffectMask);
if (_enablePVP)
spell.GetCaster().ToPlayer().UpdatePvP(true);
}
spell.spellAura = HitAura;
spell.CallScriptAfterHitHandlers();
spell.spellAura = null;
}
}
public class GOTargetInfo : TargetInfoBase
{
public ObjectGuid TargetGUID;
public ulong TimeDelay;
public override void DoTargetSpellHit(Spell spell, SpellEffectInfo spellEffectInfo)
{
GameObject go = spell.GetCaster().GetGUID() == TargetGUID ? spell.GetCaster().ToGameObject() : ObjectAccessor.GetGameObject(spell.GetCaster(), TargetGUID);
if (go == null)
return;
spell.CallScriptBeforeHitHandlers(SpellMissInfo.None);
spell.HandleEffects(null, null, go, spellEffectInfo, SpellEffectHandleMode.HitTarget);
//AI functions
if (go.GetAI() != null)
{
if (spell.GetCaster().IsGameObject())
go.GetAI().SpellHitByGameObject(spell.GetCaster().ToGameObject(), spell.m_spellInfo);
else
go.GetAI().SpellHit(spell.GetCaster().ToUnit(), spell.m_spellInfo);
}
if (spell.GetCaster().IsCreature() && spell.GetCaster().ToCreature().IsAIEnabled())
spell.GetCaster().ToCreature().GetAI().SpellHitTargetGameObject(go, spell.m_spellInfo);
else if (spell.GetCaster().IsGameObject() && spell.GetCaster().ToGameObject().GetAI() != null)
spell.GetCaster().ToGameObject().GetAI().SpellHitTargetGameObject(go, spell.m_spellInfo);
spell.CallScriptOnHitHandlers();
spell.CallScriptAfterHitHandlers();
}
}
public class ItemTargetInfo : TargetInfoBase
{
public Item TargetItem;
public override void DoTargetSpellHit(Spell spell, SpellEffectInfo spellEffectInfo)
{
spell.CallScriptBeforeHitHandlers(SpellMissInfo.None);
spell.HandleEffects(null, TargetItem, null, spellEffectInfo, SpellEffectHandleMode.HitTarget);
spell.CallScriptOnHitHandlers();
spell.CallScriptAfterHitHandlers();
}
}
public class SpellValue
{
public SpellValue(SpellInfo proto, WorldObject caster)
{
foreach (var spellEffectInfo in proto.GetEffects())
EffectBasePoints[spellEffectInfo.EffectIndex] = spellEffectInfo.CalcBaseValue(caster, null, 0, -1);
CustomBasePointsMask = 0;
MaxAffectedTargets = proto.MaxAffectedTargets;
RadiusMod = 1.0f;
AuraStackAmount = 1;
CriticalChance = 0.0f;
DurationMul = 1;
}
public int[] EffectBasePoints = new int[SpellConst.MaxEffects];
public uint CustomBasePointsMask;
public uint MaxAffectedTargets;
public float RadiusMod;
public int AuraStackAmount;
public float DurationMul;
public float CriticalChance;
public Optional<int> Duration;
}
// Spell modifier (used for modify other spells)
public class SpellModifier
{
public SpellModifier(Aura _ownerAura)
{
op = SpellModOp.HealingAndDamage;
type = SpellModType.Flat;
spellId = 0;
ownerAura = _ownerAura;
}
public SpellModOp op { get; set; }
public SpellModType type { get; set; }
public uint spellId { get; set; }
public Aura ownerAura { get; set; }
}
public class SpellModifierByClassMask : SpellModifier
{
public SpellModifierByClassMask(Aura _ownerAura) : base(_ownerAura)
{
value = 0;
mask = new FlagArray128();
}
public int value;
public FlagArray128 mask;
}
public class SpellFlatModifierByLabel : SpellModifier
{
public SpellFlatModByLabel value = new();
public SpellFlatModifierByLabel(Aura _ownerAura) : base(_ownerAura) { }
}
class SpellPctModifierByLabel : SpellModifier
{
public SpellPctModByLabel value = new();
public SpellPctModifierByLabel(Aura _ownerAura) : base(_ownerAura) { }
}
public class WorldObjectSpellTargetCheck : ICheck<WorldObject>
{
internal WorldObject _caster;
WorldObject _referer;
internal SpellInfo _spellInfo;
SpellTargetCheckTypes _targetSelectionType;
ConditionSourceInfo _condSrcInfo;
List<Condition> _condList;
SpellTargetObjectTypes _objectType;
public WorldObjectSpellTargetCheck(WorldObject caster, WorldObject referer, SpellInfo spellInfo, SpellTargetCheckTypes selectionType, List<Condition> condList, SpellTargetObjectTypes objectType)
{
_caster = caster;
_referer = referer;
_spellInfo = spellInfo;
_targetSelectionType = selectionType;
_condList = condList;
_objectType = objectType;
if (condList != null)
_condSrcInfo = new ConditionSourceInfo(null, caster);
}
public virtual bool Invoke(WorldObject obj)
{
if (_spellInfo.CheckTarget(_caster, obj, true) != SpellCastResult.SpellCastOk)
return false;
Unit unitTarget = obj.ToUnit();
Corpse corpseTarget = obj.ToCorpse();
if (corpseTarget != null)
{
// use owner for party/assistance checks
Player owner = Global.ObjAccessor.FindPlayer(corpseTarget.GetOwnerGUID());
if (owner != null)
unitTarget = owner;
else
return false;
}
Unit refUnit = _referer.ToUnit();
if (unitTarget != null)
{
// do only faction checks here
switch (_targetSelectionType)
{
case SpellTargetCheckTypes.Enemy:
if (unitTarget.IsTotem())
return false;
if (!_caster.IsValidAttackTarget(unitTarget, _spellInfo))
return false;
break;
case SpellTargetCheckTypes.Ally:
if (unitTarget.IsTotem())
return false;
if (!_caster.IsValidAssistTarget(unitTarget, _spellInfo))
return false;
break;
case SpellTargetCheckTypes.Party:
if (refUnit == null)
return false;
if (unitTarget.IsTotem())
return false;
if (!_caster.IsValidAssistTarget(unitTarget, _spellInfo))
return false;
if (!refUnit.IsInPartyWith(unitTarget))
return false;
break;
case SpellTargetCheckTypes.RaidClass:
if (!refUnit)
return false;
if (refUnit.GetClass() != unitTarget.GetClass())
return false;
goto case SpellTargetCheckTypes.Raid;
case SpellTargetCheckTypes.Raid:
if (refUnit == null)
return false;
if (unitTarget.IsTotem())
return false;
if (!_caster.IsValidAssistTarget(unitTarget, _spellInfo))
return false;
if (!refUnit.IsInRaidWith(unitTarget))
return false;
break;
case SpellTargetCheckTypes.Summoned:
if (!unitTarget.IsSummon())
return false;
if (unitTarget.ToTempSummon().GetSummonerGUID() != _caster.GetGUID())
return false;
break;
case SpellTargetCheckTypes.Threat:
if (!_referer.IsUnit() || _referer.ToUnit().GetThreatManager().GetThreat(unitTarget, true) <= 0.0f)
return false;
break;
case SpellTargetCheckTypes.Tap:
if (_referer.GetTypeId() != TypeId.Unit || unitTarget.GetTypeId() != TypeId.Player)
return false;
if (!_referer.ToCreature().IsTappedBy(unitTarget.ToPlayer()))
return false;
break;
default:
break;
}
switch (_objectType)
{
case SpellTargetObjectTypes.Corpse:
case SpellTargetObjectTypes.CorpseAlly:
case SpellTargetObjectTypes.CorpseEnemy:
if (unitTarget.IsAlive())
return false;
break;
default:
break;
}
}
if (_condSrcInfo == null)
return true;
_condSrcInfo.mConditionTargets[0] = obj;
return Global.ConditionMgr.IsObjectMeetToConditions(_condSrcInfo, _condList);
}
}
public class WorldObjectSpellNearbyTargetCheck : WorldObjectSpellTargetCheck
{
float _range;
Position _position;
public WorldObjectSpellNearbyTargetCheck(float range, WorldObject caster, SpellInfo spellInfo, SpellTargetCheckTypes selectionType, List<Condition> condList, SpellTargetObjectTypes objectType)
: base(caster, caster, spellInfo, selectionType, condList, objectType)
{
_range = range;
_position = caster.GetPosition();
}
public override bool Invoke(WorldObject target)
{
float dist = target.GetDistance(_position);
if (dist < _range && base.Invoke(target))
{
_range = dist;
return true;
}
return false;
}
}
public class WorldObjectSpellAreaTargetCheck : WorldObjectSpellTargetCheck
{
float _range;
Position _position;
public WorldObjectSpellAreaTargetCheck(float range, Position position, WorldObject caster, WorldObject referer, SpellInfo spellInfo, SpellTargetCheckTypes selectionType, List<Condition> condList, SpellTargetObjectTypes objectType)
: base(caster, referer, spellInfo, selectionType, condList, objectType)
{
_range = range;
_position = position;
}
public override bool Invoke(WorldObject target)
{
if (target.ToGameObject())
{
// isInRange including the dimension of the GO
bool isInRange = target.ToGameObject().IsInRange(_position.GetPositionX(), _position.GetPositionY(), _position.GetPositionZ(), _range);
if (!isInRange)
return false;
}
else
{
bool isInsideCylinder = target.IsWithinDist2d(_position, _range) && Math.Abs(target.GetPositionZ() - _position.GetPositionZ()) <= _range;
if (!isInsideCylinder)
return false;
}
return base.Invoke(target);
}
}
public class WorldObjectSpellConeTargetCheck : WorldObjectSpellAreaTargetCheck
{
Position _coneSrc;
float _coneAngle;
float _lineWidth;
public WorldObjectSpellConeTargetCheck(Position coneSrc, float coneAngle, float lineWidth, float range, WorldObject caster, SpellInfo spellInfo, SpellTargetCheckTypes selectionType, List<Condition> condList, SpellTargetObjectTypes objectType)
: base(range, caster.GetPosition(), caster, caster, spellInfo, selectionType, condList, objectType)
{
_coneSrc = coneSrc;
_coneAngle = coneAngle;
_lineWidth = lineWidth;
}
public override bool Invoke(WorldObject target)
{
if (_spellInfo.HasAttribute(SpellCustomAttributes.ConeBack))
{
if (_coneSrc.HasInArc(-Math.Abs(_coneAngle), target))
return false;
}
else if (_spellInfo.HasAttribute(SpellCustomAttributes.ConeLine))
{
if (!_coneSrc.HasInLine(target, target.GetCombatReach(), _lineWidth))
return false;
}
else
{
if (!_caster.IsUnit() || !_caster.ToUnit().IsWithinBoundaryRadius(target.ToUnit()))
// ConeAngle > 0 . select targets in front
// ConeAngle < 0 . select targets in back
if (_coneSrc.HasInArc(_coneAngle, target) != MathFunctions.fuzzyGe(_coneAngle, 0.0f))
return false;
}
return base.Invoke(target);
}
}
public class WorldObjectSpellTrajTargetCheck : WorldObjectSpellTargetCheck
{
float _range;
Position _position;
public WorldObjectSpellTrajTargetCheck(float range, Position position, WorldObject caster, SpellInfo spellInfo, SpellTargetCheckTypes selectionType, List<Condition> condList, SpellTargetObjectTypes objectType)
: base(caster, caster, spellInfo, selectionType, condList, objectType)
{
_range = range;
_position = position;
}
public override bool Invoke(WorldObject target)
{
// return all targets on missile trajectory (0 - size of a missile)
if (!_caster.HasInLine(target, target.GetCombatReach(), SpellConst.TrajectoryMissileSize))
return false;
if (target.GetExactDist2d(_position) > _range)
return false;
return base.Invoke(target);
}
}
public class WorldObjectSpellLineTargetCheck : WorldObjectSpellAreaTargetCheck
{
Position _position;
float _lineWidth;
public WorldObjectSpellLineTargetCheck(Position srcPosition, Position dstPosition, float lineWidth, float range, WorldObject caster, SpellInfo spellInfo, SpellTargetCheckTypes selectionType, List<Condition> condList, SpellTargetObjectTypes objectType)
: base(range, caster, caster, caster, spellInfo, selectionType, condList, objectType)
{
_position = srcPosition;
_lineWidth = lineWidth;
if (dstPosition != null && srcPosition != dstPosition)
_position.SetOrientation(srcPosition.GetAbsoluteAngle(dstPosition));
}
public override bool Invoke(WorldObject target)
{
if (!_position.HasInLine(target, target.GetCombatReach(), _lineWidth))
return false;
return base.Invoke(target);
}
}
public class SpellEvent : BasicEvent
{
public SpellEvent(Spell spell)
{
m_Spell = spell;
}
public override bool Execute(ulong e_time, uint p_time)
{
// update spell if it is not finished
if (m_Spell.GetState() != SpellState.Finished)
m_Spell.Update(p_time);
// check spell state to process
switch (m_Spell.GetState())
{
case SpellState.Finished:
{
// spell was finished, check deletable state
if (m_Spell.IsDeletable())
{
// check, if we do have unfinished triggered spells
return true; // spell is deletable, finish event
}
// event will be re-added automatically at the end of routine)
break;
}
case SpellState.Delayed:
{
// first, check, if we have just started
if (m_Spell.GetDelayStart() != 0)
{
// run the spell handler and think about what we can do next
ulong t_offset = e_time - m_Spell.GetDelayStart();
ulong n_offset = m_Spell.HandleDelayed(t_offset);
if (n_offset != 0)
{
// re-add us to the queue
m_Spell.GetCaster().m_Events.AddEvent(this, m_Spell.GetDelayStart() + n_offset, false);
return false; // event not complete
}
// event complete
// finish update event will be re-added automatically at the end of routine)
}
else
{
// delaying had just started, record the moment
m_Spell.SetDelayStart(e_time);
// handle effects on caster if the spell has travel time but also affects the caster in some way
ulong n_offset = m_Spell.HandleDelayed(0);
if (m_Spell.m_spellInfo.LaunchDelay != 0)
Cypher.Assert(n_offset == (ulong)Math.Floor(m_Spell.m_spellInfo.LaunchDelay * 1000.0f));
else
Cypher.Assert(n_offset == m_Spell.GetDelayMoment());
// re-plan the event for the delay moment
m_Spell.GetCaster().m_Events.AddEvent(this, e_time + m_Spell.GetDelayMoment(), false);
return false; // event not complete
}
break;
}
default:
{
// all other states
// event will be re-added automatically at the end of routine)
break;
}
}
// spell processing not complete, plan event on the next update interval
m_Spell.GetCaster().m_Events.AddEvent(this, e_time + 1, false);
return false; // event not complete
}
public override void Abort(ulong e_time)
{
// oops, the spell we try to do is aborted
if (m_Spell.GetState() != SpellState.Finished)
m_Spell.Cancel();
}
public override bool IsDeletable()
{
return m_Spell.IsDeletable();
}
public Spell GetSpell() { return m_Spell; }
Spell m_Spell;
}
class ProcReflectDelayed : BasicEvent
{
public ProcReflectDelayed(Unit owner, ObjectGuid casterGuid)
{
_victim = owner;
_casterGuid = casterGuid;
}
public override bool Execute(ulong e_time, uint p_time)
{
Unit caster = Global.ObjAccessor.GetUnit(_victim, _casterGuid);
if (!caster)
return true;
ProcFlags typeMaskActor = ProcFlags.None;
ProcFlags typeMaskActionTarget = ProcFlags.TakenSpellMagicDmgClassNeg | ProcFlags.TakenSpellNoneDmgClassNeg;
ProcFlagsSpellType spellTypeMask = ProcFlagsSpellType.Damage | ProcFlagsSpellType.NoDmgHeal;
ProcFlagsSpellPhase spellPhaseMask = ProcFlagsSpellPhase.None;
ProcFlagsHit hitMask = ProcFlagsHit.Reflect;
Unit.ProcSkillsAndAuras(caster, _victim, typeMaskActor, typeMaskActionTarget, spellTypeMask, spellPhaseMask, hitMask, null, null, null);
return true;
}
Unit _victim;
ObjectGuid _casterGuid;
}
public class CastSpellExtraArgs
{
public TriggerCastFlags TriggerFlags;
public Item CastItem;
public AuraEffect TriggeringAura;
public ObjectGuid OriginalCaster = ObjectGuid.Empty;
public Difficulty CastDifficulty;
public ObjectGuid OriginalCastId = ObjectGuid.Empty;
public Dictionary<SpellValueMod, int> SpellValueOverrides = new();
public CastSpellExtraArgs() { }
public CastSpellExtraArgs(bool triggered)
{
TriggerFlags = triggered ? TriggerCastFlags.FullMask : TriggerCastFlags.None;
}
public CastSpellExtraArgs(TriggerCastFlags trigger)
{
TriggerFlags = trigger;
}
public CastSpellExtraArgs(Item item)
{
TriggerFlags = TriggerCastFlags.FullMask;
CastItem = item;
}
public CastSpellExtraArgs(AuraEffect eff)
{
TriggerFlags = TriggerCastFlags.FullMask;
SetTriggeringAura(eff);
}
public CastSpellExtraArgs(Difficulty castDifficulty)
{
CastDifficulty = castDifficulty;
}
public CastSpellExtraArgs(SpellValueMod mod, int val)
{
SpellValueOverrides.Add(mod, val);
}
public CastSpellExtraArgs SetTriggerFlags(TriggerCastFlags flag)
{
TriggerFlags = flag;
return this;
}
public CastSpellExtraArgs SetCastItem(Item item)
{
CastItem = item;
return this;
}
public CastSpellExtraArgs SetTriggeringAura(AuraEffect triggeringAura)
{
TriggeringAura = triggeringAura;
if (triggeringAura != null)
OriginalCastId = triggeringAura.GetBase().GetCastId();
return this;
}
public CastSpellExtraArgs SetOriginalCaster(ObjectGuid guid)
{
OriginalCaster = guid;
return this;
}
public CastSpellExtraArgs SetCastDifficulty(Difficulty castDifficulty)
{
CastDifficulty = castDifficulty;
return this;
}
public CastSpellExtraArgs SetOriginalCastId(ObjectGuid castId)
{
OriginalCastId = castId;
return this;
}
public CastSpellExtraArgs AddSpellMod(SpellValueMod mod, int val)
{
SpellValueOverrides.Add(mod, val);
return this;
}
}
public class SpellLogEffect
{
public int Effect;
public List<SpellLogEffectPowerDrainParams> PowerDrainTargets = new();
public List<SpellLogEffectExtraAttacksParams> ExtraAttacksTargets = new();
public List<SpellLogEffectDurabilityDamageParams> DurabilityDamageTargets = new();
public List<SpellLogEffectGenericVictimParams> GenericVictimTargets = new();
public List<SpellLogEffectTradeSkillItemParams> TradeSkillTargets = new();
public List<SpellLogEffectFeedPetParams> FeedPetTargets = new();
}
}
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