void HandleCastSpell(CastSpell cast)
{
// ignore for remote control state (for player case)
Unit mover = GetPlayer().m_unitMovedByMe;
if (mover != GetPlayer() && mover.IsTypeId(TypeId.Player))
{
return;
}
SpellInfo spellInfo = Global.SpellMgr.GetSpellInfo(cast.Cast.SpellID);
if (spellInfo == null)
{
Log.outError(LogFilter.Network, "WORLD: unknown spell id {0}", cast.Cast.SpellID);
return;
}
if (spellInfo.IsPassive())
{
return;
}
Unit caster = mover;
if (caster.IsTypeId(TypeId.Unit) && !caster.ToCreature().HasSpell(spellInfo.Id))
{
// If the vehicle creature does not have the spell but it allows the passenger to cast own spells
// change caster to player and let him cast
if (!GetPlayer().IsOnVehicle(caster) || spellInfo.CheckVehicle(GetPlayer()) != SpellCastResult.SpellCastOk)
{
return;
}
caster = GetPlayer();
}
// check known spell or raid marker spell (which not requires player to know it)
if (caster.IsTypeId(TypeId.Player) && !caster.ToPlayer().HasActiveSpell(spellInfo.Id) && !spellInfo.HasEffect(SpellEffectName.ChangeRaidMarker) && !spellInfo.HasAttribute(SpellAttr8.RaidMarker))
{
return;
}
// Check possible spell cast overrides
spellInfo = caster.GetCastSpellInfo(spellInfo);
// Client is resending autoshot cast opcode when other spell is casted during shoot rotation
// Skip it to prevent "interrupt" message
if (spellInfo.IsAutoRepeatRangedSpell() && GetPlayer().GetCurrentSpell(CurrentSpellTypes.AutoRepeat) != null &&
GetPlayer().GetCurrentSpell(CurrentSpellTypes.AutoRepeat).m_spellInfo == spellInfo)
{
return;
}
// can't use our own spells when we're in possession of another unit,
if (GetPlayer().isPossessing())
{
return;
}
// client provided targets
SpellCastTargets targets = new SpellCastTargets(caster, cast.Cast);
// auto-selection buff level base at target level (in spellInfo)
if (targets.GetUnitTarget() != null)
{
SpellInfo actualSpellInfo = spellInfo.GetAuraRankForLevel(targets.GetUnitTarget().GetLevelForTarget(caster));
// if rank not found then function return NULL but in explicit cast case original spell can be casted and later failed with appropriate error message
if (actualSpellInfo != null)
{
spellInfo = actualSpellInfo;
}
}
if (cast.Cast.MoveUpdate.HasValue)
{
HandleMovementOpcode(ClientOpcodes.MoveStop, cast.Cast.MoveUpdate.Value);
}
Spell spell = new Spell(caster, spellInfo, TriggerCastFlags.None, ObjectGuid.Empty, false);
SpellPrepare spellPrepare = new SpellPrepare();
spellPrepare.ClientCastID = cast.Cast.CastID;
spellPrepare.ServerCastID = spell.m_castId;
SendPacket(spellPrepare);
spell.m_fromClient = true;
spell.m_misc.Data0 = cast.Cast.Misc[0];
spell.m_misc.Data1 = cast.Cast.Misc[1];
spell.prepare(targets);
}
void HandlePetCastSpell(PetCastSpell petCastSpell)
{
Unit caster = Global.ObjAccessor.GetUnit(GetPlayer(), petCastSpell.PetGUID);
if (!caster)
{
Log.outError(LogFilter.Network, "WorldSession.HandlePetCastSpell: Caster {0} not found.", petCastSpell.PetGUID.ToString());
return;
}
SpellInfo spellInfo = Global.SpellMgr.GetSpellInfo(petCastSpell.Cast.SpellID, caster.GetMap().GetDifficultyID());
if (spellInfo == null)
{
Log.outError(LogFilter.Network, "WorldSession.HandlePetCastSpell: unknown spell id {0} tried to cast by {1}", petCastSpell.Cast.SpellID, petCastSpell.PetGUID.ToString());
return;
}
// This opcode is also sent from charmed and possessed units (players and creatures)
if (caster != GetPlayer().GetGuardianPet() && caster != GetPlayer().GetCharm())
{
Log.outError(LogFilter.Network, "WorldSession.HandlePetCastSpell: {0} isn't pet of player {1} ({2}).", petCastSpell.PetGUID.ToString(), GetPlayer().GetName(), GetPlayer().GetGUID().ToString());
return;
}
// do not cast not learned spells
if (!caster.HasSpell(spellInfo.Id) || spellInfo.IsPassive())
{
return;
}
SpellCastTargets targets = new(caster, petCastSpell.Cast);
caster.ClearUnitState(UnitState.Follow);
Spell spell = new(caster, spellInfo, TriggerCastFlags.None);
spell.m_fromClient = true;
spell.m_misc.Data0 = petCastSpell.Cast.Misc[0];
spell.m_misc.Data1 = petCastSpell.Cast.Misc[1];
spell.m_targets = targets;
SpellCastResult result = spell.CheckPetCast(null);
if (result == SpellCastResult.SpellCastOk)
{
Creature creature = caster.ToCreature();
if (creature)
{
Pet pet = creature.ToPet();
if (pet)
{
// 10% chance to play special pet attack talk, else growl
// actually this only seems to happen on special spells, fire shield for imp, torment for voidwalker, but it's stupid to check every spell
if (pet.GetPetType() == PetType.Summon && (RandomHelper.IRand(0, 100) < 10))
{
pet.SendPetTalk(PetTalk.SpecialSpell);
}
else
{
pet.SendPetAIReaction(petCastSpell.PetGUID);
}
}
}
SpellPrepare spellPrepare = new();
spellPrepare.ClientCastID = petCastSpell.Cast.CastID;
spellPrepare.ServerCastID = spell.m_castId;
SendPacket(spellPrepare);
spell.Prepare(targets);
}
else
{
spell.SendPetCastResult(result);
if (!caster.GetSpellHistory().HasCooldown(spellInfo.Id))
{
caster.GetSpellHistory().ResetCooldown(spellInfo.Id, true);
}
spell.Finish(false);
spell.Dispose();
}
}
void HandlePetActionHelper(Unit pet, ObjectGuid guid1, uint spellid, ActiveStates flag, ObjectGuid guid2, float x, float y, float z)
{
CharmInfo charmInfo = pet.GetCharmInfo();
if (charmInfo == null)
{
Log.outError(LogFilter.Network, "WorldSession.HandlePetAction(petGuid: {0}, tagGuid: {1}, spellId: {2}, flag: {3}): object (GUID: {4} Entry: {5} TypeId: {6}) is considered pet-like but doesn't have a charminfo!",
guid1, guid2, spellid, flag, pet.GetGUID().ToString(), pet.GetEntry(), pet.GetTypeId());
return;
}
switch (flag)
{
case ActiveStates.Command: //0x07
switch ((CommandStates)spellid)
{
case CommandStates.Stay: //flat=1792 //STAY
pet.StopMoving();
pet.GetMotionMaster().Clear(false);
pet.GetMotionMaster().MoveIdle();
charmInfo.SetCommandState(CommandStates.Stay);
charmInfo.SetIsCommandAttack(false);
charmInfo.SetIsAtStay(true);
charmInfo.SetIsCommandFollow(false);
charmInfo.SetIsFollowing(false);
charmInfo.SetIsReturning(false);
charmInfo.SaveStayPosition();
break;
case CommandStates.Follow: //spellid=1792 //FOLLOW
pet.AttackStop();
pet.InterruptNonMeleeSpells(false);
pet.ClearInPetCombat();
pet.GetMotionMaster().MoveFollow(GetPlayer(), SharedConst.PetFollowDist, pet.GetFollowAngle());
charmInfo.SetCommandState(CommandStates.Follow);
charmInfo.SetIsCommandAttack(false);
charmInfo.SetIsAtStay(false);
charmInfo.SetIsReturning(true);
charmInfo.SetIsCommandFollow(true);
charmInfo.SetIsFollowing(false);
break;
case CommandStates.Attack: //spellid=1792 //ATTACK
{
// Can't attack if owner is pacified
if (GetPlayer().HasAuraType(AuraType.ModPacify))
{
// @todo Send proper error message to client
return;
}
// only place where pet can be player
Unit TargetUnit = Global.ObjAccessor.GetUnit(GetPlayer(), guid2);
if (!TargetUnit)
{
return;
}
Unit owner = pet.GetOwner();
if (owner)
{
if (!owner.IsValidAttackTarget(TargetUnit))
{
return;
}
}
pet.ClearUnitState(UnitState.Follow);
// This is true if pet has no target or has target but targets differs.
if (pet.GetVictim() != TargetUnit || !pet.GetCharmInfo().IsCommandAttack())
{
if (pet.GetVictim())
{
pet.AttackStop();
}
if (!pet.IsTypeId(TypeId.Player) && pet.ToCreature().IsAIEnabled)
{
charmInfo.SetIsCommandAttack(true);
charmInfo.SetIsAtStay(false);
charmInfo.SetIsFollowing(false);
charmInfo.SetIsCommandFollow(false);
charmInfo.SetIsReturning(false);
CreatureAI AI = pet.ToCreature().GetAI();
if (AI is PetAI)
{
((PetAI)AI)._AttackStart(TargetUnit); // force target switch
}
else
{
AI.AttackStart(TargetUnit);
}
//10% chance to play special pet attack talk, else growl
if (pet.IsPet() && pet.ToPet().GetPetType() == PetType.Summon && pet != TargetUnit && RandomHelper.IRand(0, 100) < 10)
{
pet.SendPetTalk(PetTalk.Attack);
}
else
{
// 90% chance for pet and 100% chance for charmed creature
pet.SendPetAIReaction(guid1);
}
}
else // charmed player
{
charmInfo.SetIsCommandAttack(true);
charmInfo.SetIsAtStay(false);
charmInfo.SetIsFollowing(false);
charmInfo.SetIsCommandFollow(false);
charmInfo.SetIsReturning(false);
pet.Attack(TargetUnit, true);
pet.SendPetAIReaction(guid1);
}
}
break;
}
case CommandStates.Abandon: // abandon (hunter pet) or dismiss (summoned pet)
if (pet.GetCharmerGUID() == GetPlayer().GetGUID())
{
GetPlayer().StopCastingCharm();
}
else if (pet.GetOwnerGUID() == GetPlayer().GetGUID())
{
Cypher.Assert(pet.IsTypeId(TypeId.Unit));
if (pet.IsPet())
{
if (pet.ToPet().GetPetType() == PetType.Hunter)
{
GetPlayer().RemovePet(pet.ToPet(), PetSaveMode.AsDeleted);
}
else
{
//dismissing a summoned pet is like killing them (this prevents returning a soulshard...)
pet.SetDeathState(DeathState.Corpse);
}
}
else if (pet.HasUnitTypeMask(UnitTypeMask.Minion))
{
((Minion)pet).UnSummon();
}
}
break;
case CommandStates.MoveTo:
pet.StopMoving();
pet.GetMotionMaster().Clear(false);
pet.GetMotionMaster().MovePoint(0, x, y, z);
charmInfo.SetCommandState(CommandStates.MoveTo);
charmInfo.SetIsCommandAttack(false);
charmInfo.SetIsAtStay(true);
charmInfo.SetIsFollowing(false);
charmInfo.SetIsReturning(false);
charmInfo.SaveStayPosition();
break;
default:
Log.outError(LogFilter.Network, "WORLD: unknown PET flag Action {0} and spellid {1}.", flag, spellid);
break;
}
break;
case ActiveStates.Reaction: // 0x6
switch ((ReactStates)spellid)
{
case ReactStates.Passive: //passive
pet.AttackStop();
pet.ClearInPetCombat();
goto case ReactStates.Defensive;
case ReactStates.Defensive: //recovery
case ReactStates.Aggressive: //activete
if (pet.IsTypeId(TypeId.Unit))
{
pet.ToCreature().SetReactState((ReactStates)spellid);
}
break;
}
break;
case ActiveStates.Disabled: // 0x81 spell (disabled), ignore
case ActiveStates.Passive: // 0x01
case ActiveStates.Enabled: // 0xC1 spell
{
Unit unit_target = null;
if (!guid2.IsEmpty())
{
unit_target = Global.ObjAccessor.GetUnit(GetPlayer(), guid2);
}
// do not cast unknown spells
SpellInfo spellInfo = Global.SpellMgr.GetSpellInfo(spellid, pet.GetMap().GetDifficultyID());
if (spellInfo == null)
{
Log.outError(LogFilter.Network, "WORLD: unknown PET spell id {0}", spellid);
return;
}
foreach (SpellEffectInfo effect in spellInfo.GetEffects())
{
if (effect != null && (effect.TargetA.GetTarget() == Targets.UnitSrcAreaEnemy || effect.TargetA.GetTarget() == Targets.UnitDestAreaEnemy || effect.TargetA.GetTarget() == Targets.DestDynobjEnemy))
{
return;
}
}
// do not cast not learned spells
if (!pet.HasSpell(spellid) || spellInfo.IsPassive())
{
return;
}
// Clear the flags as if owner clicked 'attack'. AI will reset them
// after AttackStart, even if spell failed
if (pet.GetCharmInfo() != null)
{
pet.GetCharmInfo().SetIsAtStay(false);
pet.GetCharmInfo().SetIsCommandAttack(true);
pet.GetCharmInfo().SetIsReturning(false);
pet.GetCharmInfo().SetIsFollowing(false);
}
Spell spell = new(pet, spellInfo, TriggerCastFlags.None);
SpellCastResult result = spell.CheckPetCast(unit_target);
//auto turn to target unless possessed
if (result == SpellCastResult.UnitNotInfront && !pet.IsPossessed() && !pet.IsVehicle())
{
Unit unit_target2 = spell.m_targets.GetUnitTarget();
if (unit_target)
{
if (!pet.IsFocusing())
{
pet.SetInFront(unit_target);
}
Player player = unit_target.ToPlayer();
if (player)
{
pet.SendUpdateToPlayer(player);
}
}
else if (unit_target2)
{
if (!pet.IsFocusing())
{
pet.SetInFront(unit_target2);
}
Player player = unit_target2.ToPlayer();
if (player)
{
pet.SendUpdateToPlayer(player);
}
}
Unit powner = pet.GetCharmerOrOwner();
if (powner)
{
Player player = powner.ToPlayer();
if (player)
{
pet.SendUpdateToPlayer(player);
}
}
result = SpellCastResult.SpellCastOk;
}
if (result == SpellCastResult.SpellCastOk)
{
unit_target = spell.m_targets.GetUnitTarget();
//10% chance to play special pet attack talk, else growl
//actually this only seems to happen on special spells, fire shield for imp, torment for voidwalker, but it's stupid to check every spell
if (pet.IsPet() && (pet.ToPet().GetPetType() == PetType.Summon) && (pet != unit_target) && (RandomHelper.IRand(0, 100) < 10))
{
pet.SendPetTalk(PetTalk.SpecialSpell);
}
else
{
pet.SendPetAIReaction(guid1);
}
if (unit_target && !GetPlayer().IsFriendlyTo(unit_target) && !pet.IsPossessed() && !pet.IsVehicle())
{
// This is true if pet has no target or has target but targets differs.
if (pet.GetVictim() != unit_target)
{
pet.GetMotionMaster().Clear();
if (pet.ToCreature().IsAIEnabled)
{
CreatureAI AI = pet.ToCreature().GetAI();
PetAI petAI = (PetAI)AI;
if (petAI != null)
{
petAI._AttackStart(unit_target); // force victim switch
}
else
{
AI.AttackStart(unit_target);
}
}
}
}
spell.Prepare(spell.m_targets);
}
else
{
if (pet.IsPossessed() || pet.IsVehicle()) // @todo: confirm this check
{
Spell.SendCastResult(GetPlayer(), spellInfo, spell.m_SpellVisual, spell.m_castId, result);
}
else
{
spell.SendPetCastResult(result);
}
if (!pet.GetSpellHistory().HasCooldown(spellid))
{
pet.GetSpellHistory().ResetCooldown(spellid, true);
}
spell.Finish(false);
spell.Dispose();
// reset specific flags in case of spell fail. AI will reset other flags
if (pet.GetCharmInfo() != null)
{
pet.GetCharmInfo().SetIsCommandAttack(false);
}
}
break;
}
default:
Log.outError(LogFilter.Network, "WORLD: unknown PET flag Action {0} and spellid {1}.", flag, spellid);
break;
}
}
void HandleCancelMountAura(CancelMountAura packet)
{
GetPlayer().RemoveAurasByType(AuraType.Mounted, aurApp =>
{
SpellInfo spellInfo = aurApp.GetBase().GetSpellInfo();
return(!spellInfo.HasAttribute(SpellAttr0.CantCancel) && spellInfo.IsPositive() && !spellInfo.IsPassive());
});
}
void HandleCancelGrowthAura(CancelGrowthAura cancelGrowthAura)
{
GetPlayer().RemoveAurasByType(AuraType.ModScale, aurApp =>
{
SpellInfo spellInfo = aurApp.GetBase().GetSpellInfo();
return(!spellInfo.HasAttribute(SpellAttr0.CantCancel) && spellInfo.IsPositive() && !spellInfo.IsPassive());
});
}
void HandleCastSpell(CastSpell cast)
{
// ignore for remote control state (for player case)
Unit mover = GetPlayer().GetUnitBeingMoved();
if (mover != GetPlayer() && mover.IsTypeId(TypeId.Player))
{
return;
}
SpellInfo spellInfo = Global.SpellMgr.GetSpellInfo(cast.Cast.SpellID, mover.GetMap().GetDifficultyID());
if (spellInfo == null)
{
Log.outError(LogFilter.Network, "WORLD: unknown spell id {0}", cast.Cast.SpellID);
return;
}
if (spellInfo.IsPassive())
{
return;
}
Unit caster = mover;
if (caster.IsTypeId(TypeId.Unit) && !caster.ToCreature().HasSpell(spellInfo.Id))
{
// If the vehicle creature does not have the spell but it allows the passenger to cast own spells
// change caster to player and let him cast
if (!GetPlayer().IsOnVehicle(caster) || spellInfo.CheckVehicle(GetPlayer()) != SpellCastResult.SpellCastOk)
{
return;
}
caster = GetPlayer();
}
TriggerCastFlags triggerFlag = TriggerCastFlags.None;
// client provided targets
SpellCastTargets targets = new(caster, cast.Cast);
// check known spell or raid marker spell (which not requires player to know it)
if (caster.IsTypeId(TypeId.Player) && !caster.ToPlayer().HasActiveSpell(spellInfo.Id) && !spellInfo.HasEffect(SpellEffectName.ChangeRaidMarker) && !spellInfo.HasAttribute(SpellAttr8.RaidMarker))
{
bool allow = false;
// allow casting of unknown spells for special lock cases
GameObject go = targets.GetGOTarget();
if (go != null)
{
if (go.GetSpellForLock(caster.ToPlayer()) == spellInfo)
{
allow = true;
}
}
// allow casting of spells triggered by clientside periodic trigger auras
if (caster.HasAuraTypeWithTriggerSpell(AuraType.PeriodicTriggerSpellFromClient, spellInfo.Id))
{
allow = true;
triggerFlag = TriggerCastFlags.FullMask;
}
if (!allow)
{
return;
}
}
// Check possible spell cast overrides
spellInfo = caster.GetCastSpellInfo(spellInfo);
// can't use our own spells when we're in possession of another unit,
if (GetPlayer().IsPossessing())
{
return;
}
// Client is resending autoshot cast opcode when other spell is cast during shoot rotation
// Skip it to prevent "interrupt" message
// Also check targets! target may have changed and we need to interrupt current spell
if (spellInfo.IsAutoRepeatRangedSpell())
{
Spell autoRepeatSpell = caster.GetCurrentSpell(CurrentSpellTypes.AutoRepeat);
if (autoRepeatSpell != null)
{
if (autoRepeatSpell.m_spellInfo == spellInfo && autoRepeatSpell.m_targets.GetUnitTargetGUID() == targets.GetUnitTargetGUID())
{
return;
}
}
}
// auto-selection buff level base at target level (in spellInfo)
if (targets.GetUnitTarget() != null)
{
SpellInfo actualSpellInfo = spellInfo.GetAuraRankForLevel(targets.GetUnitTarget().GetLevelForTarget(caster));
// if rank not found then function return NULL but in explicit cast case original spell can be casted and later failed with appropriate error message
if (actualSpellInfo != null)
{
spellInfo = actualSpellInfo;
}
}
if (cast.Cast.MoveUpdate.HasValue)
{
HandleMovementOpcode(ClientOpcodes.MoveStop, cast.Cast.MoveUpdate.Value);
}
Spell spell = new(caster, spellInfo, triggerFlag);
SpellPrepare spellPrepare = new();
spellPrepare.ClientCastID = cast.Cast.CastID;
spellPrepare.ServerCastID = spell.m_castId;
SendPacket(spellPrepare);
spell.m_fromClient = true;
spell.m_misc.Data0 = cast.Cast.Misc[0];
spell.m_misc.Data1 = cast.Cast.Misc[1];
spell.Prepare(targets);
}
