Imported MaNGOS revision 6767 from http://mangos.svn.sourceforge.net/svnroot/mangos/trunk/

src/game/PetHandler.cpp

@@ -0,0 +1,676 @@
+/*
+ * Copyright (C) 2005-2008 MaNGOS <http://getmangos.com/>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "Common.h"
+#include "WorldPacket.h"
+#include "WorldSession.h"
+#include "World.h"
+#include "ObjectMgr.h"
+#include "SpellMgr.h"
+#include "Log.h"
+#include "Opcodes.h"
+#include "Spell.h"
+#include "ObjectAccessor.h"
+#include "MapManager.h"
+#include "CreatureAI.h"
+#include "Util.h"
+#include "Pet.h"
+#include "Language.h"
+
+void WorldSession::HandlePetAction( WorldPacket & recv_data )
+{
+    CHECK_PACKET_SIZE(recv_data,8+2+2+8);
+
+    uint64 guid1;
+    uint16 spellid;
+    uint16 flag;
+    uint64 guid2;
+    recv_data >> guid1;                                     //pet guid
+    recv_data >> spellid;
+    recv_data >> flag;                                      //delete = 0x0700 CastSpell = C100
+    recv_data >> guid2;                                     //tag guid
+
+    // used also for charmed creature
+    Unit* pet= ObjectAccessor::GetUnit(*_player,guid1);
+    sLog.outDetail( "HandlePetAction.Pet %u flag is %u, spellid is %u, target %u.\n", uint32(GUID_LOPART(guid1)), flag, spellid, uint32(GUID_LOPART(guid2)) );
+    if(!pet)
+    {
+        sLog.outError( "Pet %u not exist.\n", uint32(GUID_LOPART(guid1)) );
+        return;
+    }
+
+    if(pet != GetPlayer()->GetPet() && pet != GetPlayer()->GetCharm())
+    {
+        sLog.outError( "HandlePetAction.Pet %u isn't pet of player %s .\n", uint32(GUID_LOPART(guid1)),GetPlayer()->GetName() );
+        return;
+    }
+
+    if(!pet->isAlive())
+        return;
+
+    if(pet->GetTypeId() == TYPEID_PLAYER && !(flag == ACT_COMMAND && spellid == COMMAND_ATTACK))
+        return;
+
+    CharmInfo *charmInfo = pet->GetCharmInfo();
+    if(!charmInfo)
+    {
+        sLog.outError("WorldSession::HandlePetAction: object "I64FMTD" is considered pet-like but doesn't have a charminfo!", pet->GetGUID());
+        return;
+    }
+
+    switch(flag)
+    {
+        case ACT_COMMAND:                                   //0x0700
+            switch(spellid)
+            {
+                case COMMAND_STAY:                          //flat=1792  //STAY
+                    pet->StopMoving();
+                    pet->GetMotionMaster()->Clear();
+                    pet->GetMotionMaster()->MoveIdle();
+                    charmInfo->SetCommandState( COMMAND_STAY );
+                    break;
+                case COMMAND_FOLLOW:                        //spellid=1792  //FOLLOW
+                    pet->AttackStop();
+                    pet->GetMotionMaster()->MoveFollow(_player,PET_FOLLOW_DIST,PET_FOLLOW_ANGLE);
+                    charmInfo->SetCommandState( COMMAND_FOLLOW );
+                    break;
+                case COMMAND_ATTACK:                        //spellid=1792  //ATTACK
+                {
+                    // only place where pet can be player
+                    pet->clearUnitState(UNIT_STAT_FOLLOW);
+                    uint64 selguid = _player->GetSelection();
+                    Unit *TargetUnit = ObjectAccessor::GetUnit(*_player, selguid);
+                    if(!TargetUnit)
+                        return;
+
+                    // not let attack friendly units.
+                    if( GetPlayer()->IsFriendlyTo(TargetUnit))
+                        return;
+
+                    if(pet->getVictim())
+                        pet->AttackStop();
+
+                    if(pet->GetTypeId() != TYPEID_PLAYER)
+                    {
+                        pet->GetMotionMaster()->Clear();
+                        if (((Creature*)pet)->AI())
+                            ((Creature*)pet)->AI()->AttackStart(TargetUnit);
+
+                        //10% chance to play special pet attack talk, else growl
+                        if(((Creature*)pet)->isPet() && ((Pet*)pet)->getPetType() == SUMMON_PET && pet != TargetUnit && urand(0, 100) < 10)
+                            pet->SendPetTalk((uint32)PET_TALK_ATTACK);
+                        else
+                        {
+                            // 90% chance for pet and 100% chance for charmed creature
+                            pet->SendPetAIReaction(guid1);
+                        }
+                    }
+                    else                                    // charmed player
+                    {
+                        pet->Attack(TargetUnit,true);
+                        pet->SendPetAIReaction(guid1);
+                    }
+                    break;
+                }
+                case COMMAND_ABANDON:                       // abandon (hunter pet) or dismiss (summoned pet)
+                    if(((Creature*)pet)->isPet())
+                    {
+                        Pet* p = (Pet*)pet;
+                        if(p->getPetType() == HUNTER_PET)
+                            _player->RemovePet(p,PET_SAVE_AS_DELETED);
+                        else
+                            //dismissing a summoned pet is like killing them (this prevents returning a soulshard...)
+                            p->setDeathState(CORPSE);
+                    }
+                    else                                    // charmed
+                        _player->Uncharm();
+                    break;
+                default:
+                    sLog.outError("WORLD: unknown PET flag Action %i and spellid %i.\n", flag, spellid);
+            }
+            break;
+        case ACT_REACTION:                                  // 0x600
+            switch(spellid)
+            {
+                case REACT_PASSIVE:                         //passive
+                case REACT_DEFENSIVE:                       //recovery
+                case REACT_AGGRESSIVE:                      //activete
+                    charmInfo->SetReactState( ReactStates(spellid) );
+                    break;
+            }
+            break;
+        case ACT_DISABLED:                                  //0x8100    spell (disabled), ignore
+        case ACT_CAST:                                      //0x0100
+        case ACT_ENABLED:                                   //0xc100    spell
+        {
+            Unit* unit_target;
+            if(guid2)
+                unit_target = ObjectAccessor::GetUnit(*_player,guid2);
+            else
+                unit_target = NULL;
+
+            // do not cast unknown spells
+            SpellEntry const *spellInfo = sSpellStore.LookupEntry(spellid );
+            if(!spellInfo)
+            {
+                sLog.outError("WORLD: unknown PET spell id %i\n", spellid);
+                return;
+            }
+
+            for(uint32 i = 0; i < 3;i++)
+            {
+                if(spellInfo->EffectImplicitTargetA[i] == TARGET_ALL_ENEMY_IN_AREA || spellInfo->EffectImplicitTargetA[i] == TARGET_ALL_ENEMY_IN_AREA_INSTANT || spellInfo->EffectImplicitTargetA[i] == TARGET_ALL_ENEMY_IN_AREA_CHANNELED)
+                    return;
+            }
+
+            // do not cast not learned spells
+            if(!pet->HasSpell(spellid) || IsPassiveSpell(spellid))
+                return;
+
+            pet->clearUnitState(UNIT_STAT_FOLLOW);
+
+            Spell *spell = new Spell(pet, spellInfo, false);
+
+            int16 result = spell->PetCanCast(unit_target);
+
+                                                            //auto turn to target unless possessed
+            if(result == SPELL_FAILED_UNIT_NOT_INFRONT && !pet->HasAuraType(SPELL_AURA_MOD_POSSESS))
+            {
+                pet->SetInFront(unit_target);
+                if( unit_target->GetTypeId() == TYPEID_PLAYER )
+                    pet->SendUpdateToPlayer( (Player*)unit_target );
+                if(Unit* powner = pet->GetCharmerOrOwner())
+                    if(powner->GetTypeId() == TYPEID_PLAYER)
+                        pet->SendUpdateToPlayer((Player*)powner);
+                result = -1;
+            }
+
+            if(result == -1)
+            {
+                ((Creature*)pet)->AddCreatureSpellCooldown(spellid);
+                if (((Creature*)pet)->isPet())
+                    ((Pet*)pet)->CheckLearning(spellid);
+
+                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(((Creature*)pet)->isPet() && (((Pet*)pet)->getPetType() == SUMMON_PET) && (pet != unit_target) && (urand(0, 100) < 10))
+                    pet->SendPetTalk((uint32)PET_TALK_SPECIAL_SPELL);
+                else
+                {
+                    pet->SendPetAIReaction(guid1);
+                }
+
+                if( unit_target && !GetPlayer()->IsFriendlyTo(unit_target) && !pet->HasAuraType(SPELL_AURA_MOD_POSSESS))
+                {
+                    pet->clearUnitState(UNIT_STAT_FOLLOW);
+                    if(pet->getVictim())
+                        pet->AttackStop();
+                    pet->GetMotionMaster()->Clear();
+                    if (((Creature*)pet)->AI())
+                        ((Creature*)pet)->AI()->AttackStart(unit_target);
+                }
+
+                spell->prepare(&(spell->m_targets));
+            }
+            else
+            {
+                if(pet->HasAuraType(SPELL_AURA_MOD_POSSESS))
+                {
+                    WorldPacket data(SMSG_CAST_FAILED, (4+1+1));
+                    data << uint32(spellid) << uint8(2) << uint8(result);
+                    switch (result)
+                    {
+                        case SPELL_FAILED_REQUIRES_SPELL_FOCUS:
+                            data << uint32(spellInfo->RequiresSpellFocus);
+                            break;
+                        case SPELL_FAILED_REQUIRES_AREA:
+                            data << uint32(spellInfo->AreaId);
+                            break;
+                    }
+                    SendPacket(&data);
+                }
+                else
+                    pet->SendPetCastFail(spellid, result);
+
+                if(!((Creature*)pet)->HasSpellCooldown(spellid))
+                    pet->SendPetClearCooldown(spellid);
+
+                spell->finish(false);
+                delete spell;
+            }
+            break;
+        }
+        default:
+            sLog.outError("WORLD: unknown PET flag Action %i and spellid %i.\n", flag, spellid);
+    }
+}
+
+void WorldSession::HandlePetNameQuery( WorldPacket & recv_data )
+{
+    CHECK_PACKET_SIZE(recv_data,4+8);
+
+    sLog.outDetail( "HandlePetNameQuery. CMSG_PET_NAME_QUERY\n" );
+
+    uint32 petnumber;
+    uint64 petguid;
+
+    recv_data >> petnumber;
+    recv_data >> petguid;
+
+    SendPetNameQuery(petguid,petnumber);
+}
+
+void WorldSession::SendPetNameQuery( uint64 petguid, uint32 petnumber)
+{
+    Creature* pet = ObjectAccessor::GetCreatureOrPet(*_player, petguid);
+    if(!pet || !pet->GetCharmInfo() || pet->GetCharmInfo()->GetPetNumber() != petnumber)
+        return;
+
+    std::string name = pet->GetName();
+
+    WorldPacket data(SMSG_PET_NAME_QUERY_RESPONSE, (4+4+name.size()+1));
+    data << uint32(petnumber);
+    data << name.c_str();
+    data << uint32(pet->GetUInt32Value(UNIT_FIELD_PET_NAME_TIMESTAMP));
+
+    if( pet->isPet() && ((Pet*)pet)->GetDeclinedNames() )
+    {
+        data << uint8(1);
+        for(int i = 0; i < MAX_DECLINED_NAME_CASES; ++i)
+            data << ((Pet*)pet)->GetDeclinedNames()->name[i];
+    }
+    else
+        data << uint8(0);
+
+    _player->GetSession()->SendPacket(&data);
+}
+
+void WorldSession::HandlePetSetAction( WorldPacket & recv_data )
+{
+    CHECK_PACKET_SIZE(recv_data,8+4+2+2);
+
+    sLog.outDetail( "HandlePetSetAction. CMSG_PET_SET_ACTION\n" );
+
+    uint64 petguid;
+    uint32 position;
+    uint16 spell_id;
+    uint16 act_state;
+    uint8  count;
+
+    recv_data >> petguid;
+
+    // FIXME: charmed case
+    //Pet* pet = ObjectAccessor::Instance().GetPet(petguid);
+    if(ObjectAccessor::FindPlayer(petguid))
+        return;
+
+    Creature* pet = ObjectAccessor::GetCreatureOrPet(*_player, petguid);
+
+    if(!pet || (pet != _player->GetPet() && pet != _player->GetCharm()))
+    {
+        sLog.outError( "HandlePetSetAction: Unknown pet or pet owner.\n" );
+        return;
+    }
+
+    CharmInfo *charmInfo = pet->GetCharmInfo();
+    if(!charmInfo)
+    {
+        sLog.outError("WorldSession::HandlePetSetAction: object "I64FMTD" is considered pet-like but doesn't have a charminfo!", pet->GetGUID());
+        return;
+    }
+
+    count = (recv_data.size() == 24) ? 2 : 1;
+    for(uint8 i = 0; i < count; i++)
+    {
+        recv_data >> position;
+        recv_data >> spell_id;
+        recv_data >> act_state;
+
+        sLog.outDetail( "Player %s has changed pet spell action. Position: %u, Spell: %u, State: 0x%X\n", _player->GetName(), position, spell_id, act_state);
+
+                                                            //if it's act for spell (en/disable/cast) and there is a spell given (0 = remove spell) which pet doesn't know, don't add
+        if(!((act_state == ACT_ENABLED || act_state == ACT_DISABLED || act_state == ACT_CAST) && spell_id && !pet->HasSpell(spell_id)))
+        {
+            //sign for autocast
+            if(act_state == ACT_ENABLED && spell_id)
+            {
+                if(pet->isCharmed())
+                    charmInfo->ToggleCreatureAutocast(spell_id, true);
+                else
+                    ((Pet*)pet)->ToggleAutocast(spell_id, true);
+            }
+            //sign for no/turn off autocast
+            else if(act_state == ACT_DISABLED && spell_id)
+            {
+                if(pet->isCharmed())
+                    charmInfo->ToggleCreatureAutocast(spell_id, false);
+                else
+                    ((Pet*)pet)->ToggleAutocast(spell_id, false);
+            }
+
+            charmInfo->GetActionBarEntry(position)->Type = act_state;
+            charmInfo->GetActionBarEntry(position)->SpellOrAction = spell_id;
+        }
+    }
+}
+
+void WorldSession::HandlePetRename( WorldPacket & recv_data )
+{
+    CHECK_PACKET_SIZE(recv_data, 8+1);
+
+    sLog.outDetail( "HandlePetRename. CMSG_PET_RENAME\n" );
+
+    uint64 petguid;
+    uint8 isdeclined;
+
+    std::string name;
+    DeclinedName declinedname;
+
+    recv_data >> petguid;
+    recv_data >> name;
+    CHECK_PACKET_SIZE(recv_data, recv_data.rpos() + 1);
+    recv_data >> isdeclined;
+
+    Pet* pet = ObjectAccessor::GetPet(petguid);
+                                                            // check it!
+    if( !pet || !pet->isPet() || ((Pet*)pet)->getPetType()!= HUNTER_PET ||
+        pet->GetByteValue(UNIT_FIELD_BYTES_2, 2) != UNIT_RENAME_ALLOWED ||
+        pet->GetOwnerGUID() != _player->GetGUID() || !pet->GetCharmInfo() )
+        return;
+
+    if(!ObjectMgr::IsValidPetName(name))
+    {
+        SendPetNameInvalid(PET_NAME_INVALID, name, NULL);
+        return;
+    }
+
+    if(objmgr.IsReservedName(name))
+    {
+        SendPetNameInvalid(PET_NAME_RESERVED, name, NULL);
+        return;
+    }
+
+    pet->SetName(name);
+
+    Unit *owner = pet->GetOwner();
+    if(owner && (owner->GetTypeId() == TYPEID_PLAYER) && ((Player*)owner)->GetGroup())
+        ((Player*)owner)->SetGroupUpdateFlag(GROUP_UPDATE_FLAG_PET_NAME);
+
+    pet->SetByteValue(UNIT_FIELD_BYTES_2, 2, UNIT_RENAME_NOT_ALLOWED);
+
+    if(isdeclined)
+    {
+        for(int i = 0; i < MAX_DECLINED_NAME_CASES; ++i)
+        {
+            CHECK_PACKET_SIZE(recv_data, recv_data.rpos() + 1);
+            recv_data >> declinedname.name[i];
+        }
+
+        std::wstring wname;
+        Utf8toWStr(name, wname);
+        if(!ObjectMgr::CheckDeclinedNames(GetMainPartOfName(wname,0),declinedname))
+        {
+            SendPetNameInvalid(PET_NAME_DECLENSION_DOESNT_MATCH_BASE_NAME, name, &declinedname);
+            return;
+        }
+    }
+
+    CharacterDatabase.BeginTransaction();
+    if(isdeclined)
+    {
+        for(int i = 0; i < MAX_DECLINED_NAME_CASES; ++i)
+            CharacterDatabase.escape_string(declinedname.name[i]);
+        CharacterDatabase.PExecute("DELETE FROM character_pet_declinedname WHERE owner = '%u' AND id = '%u'", _player->GetGUIDLow(), pet->GetCharmInfo()->GetPetNumber());
+        CharacterDatabase.PExecute("INSERT INTO character_pet_declinedname (id, owner, genitive, dative, accusative, instrumental, prepositional) VALUES ('%u','%u','%s','%s','%s','%s','%s')",
+            pet->GetCharmInfo()->GetPetNumber(), _player->GetGUIDLow(), declinedname.name[0].c_str(), declinedname.name[1].c_str(), declinedname.name[2].c_str(), declinedname.name[3].c_str(), declinedname.name[4].c_str());
+    }
+
+    CharacterDatabase.escape_string(name);
+    CharacterDatabase.PExecute("UPDATE character_pet SET name = '%s', renamed = '1' WHERE owner = '%u' AND id = '%u'", name.c_str(), _player->GetGUIDLow(), pet->GetCharmInfo()->GetPetNumber());
+    CharacterDatabase.CommitTransaction();
+
+    pet->SetUInt32Value(UNIT_FIELD_PET_NAME_TIMESTAMP, time(NULL));
+}
+
+void WorldSession::HandlePetAbandon( WorldPacket & recv_data )
+{
+    CHECK_PACKET_SIZE(recv_data, 8);
+
+    uint64 guid;
+    recv_data >> guid;                                      //pet guid
+    sLog.outDetail( "HandlePetAbandon. CMSG_PET_ABANDON pet guid is %u", GUID_LOPART(guid) );
+
+    // pet/charmed
+    Creature* pet = ObjectAccessor::GetCreatureOrPet(*_player, guid);
+    if(pet)
+    {
+        if(pet->isPet())
+        {
+            if(pet->GetGUID() == _player->GetPetGUID())
+            {
+                uint32 feelty = pet->GetPower(POWER_HAPPINESS);
+                pet->SetPower(POWER_HAPPINESS ,(feelty-50000) > 0 ?(feelty-50000) : 0);
+            }
+
+            _player->RemovePet((Pet*)pet,PET_SAVE_AS_DELETED);
+        }
+        else if(pet->GetGUID() == _player->GetCharmGUID())
+        {
+            _player->Uncharm();
+        }
+    }
+}
+
+void WorldSession::HandlePetUnlearnOpcode(WorldPacket& recvPacket)
+{
+    CHECK_PACKET_SIZE(recvPacket,8);
+
+    sLog.outDetail("CMSG_PET_UNLEARN");
+    uint64 guid;
+    recvPacket >> guid;
+
+    Pet* pet = _player->GetPet();
+
+    if(!pet || pet->getPetType() != HUNTER_PET || pet->m_spells.size() <= 1)
+        return;
+
+    if(guid != pet->GetGUID())
+    {
+        sLog.outError( "HandlePetUnlearnOpcode.Pet %u isn't pet of player %s .\n", uint32(GUID_LOPART(guid)),GetPlayer()->GetName() );
+        return;
+    }
+
+    CharmInfo *charmInfo = pet->GetCharmInfo();
+    if(!charmInfo)
+    {
+        sLog.outError("WorldSession::HandlePetUnlearnOpcode: object "I64FMTD" is considered pet-like but doesn't have a charminfo!", pet->GetGUID());
+        return;
+    }
+
+    uint32 cost = pet->resetTalentsCost();
+
+    if (GetPlayer()->GetMoney() < cost)
+    {
+        GetPlayer()->SendBuyError( BUY_ERR_NOT_ENOUGHT_MONEY, 0, 0, 0);
+        return;
+    }
+
+    for(PetSpellMap::iterator itr = pet->m_spells.begin(); itr != pet->m_spells.end();)
+    {
+        uint32 spell_id = itr->first;                       // Pet::removeSpell can invalidate iterator at erase NEW spell
+        ++itr;
+        pet->removeSpell(spell_id);
+    }
+
+    pet->SetTP(pet->getLevel() * (pet->GetLoyaltyLevel() - 1));
+
+    for(uint8 i = 0; i < 10; i++)
+    {
+        if(charmInfo->GetActionBarEntry(i)->SpellOrAction && charmInfo->GetActionBarEntry(i)->Type == ACT_ENABLED || charmInfo->GetActionBarEntry(i)->Type == ACT_DISABLED)
+            charmInfo->GetActionBarEntry(i)->SpellOrAction = 0;
+    }
+
+    // relearn pet passives
+    pet->LearnPetPassives();
+
+    pet->m_resetTalentsTime = time(NULL);
+    pet->m_resetTalentsCost = cost;
+    GetPlayer()->ModifyMoney(-(int32)cost);
+
+    GetPlayer()->PetSpellInitialize();
+}
+
+void WorldSession::HandlePetSpellAutocastOpcode( WorldPacket& recvPacket )
+{
+    CHECK_PACKET_SIZE(recvPacket,8+2+2+1);
+
+    sLog.outDetail("CMSG_PET_SPELL_AUTOCAST");
+    uint64 guid;
+    uint16 spellid;
+    uint16 spellid2;                                        //maybe second spell, automatically toggled off when first toggled on?
+    uint8  state;                                           //1 for on, 0 for off
+    recvPacket >> guid >> spellid >> spellid2 >> state;
+
+    if(!_player->GetPet() && !_player->GetCharm())
+        return;
+
+    if(ObjectAccessor::FindPlayer(guid))
+        return;
+
+    Creature* pet=ObjectAccessor::GetCreatureOrPet(*_player,guid);
+
+    if(!pet || (pet != _player->GetPet() && pet != _player->GetCharm()))
+    {
+        sLog.outError( "HandlePetSpellAutocastOpcode.Pet %u isn't pet of player %s .\n", uint32(GUID_LOPART(guid)),GetPlayer()->GetName() );
+        return;
+    }
+
+    // do not add not learned spells/ passive spells
+    if(!pet->HasSpell(spellid) || IsPassiveSpell(spellid))
+        return;
+
+    CharmInfo *charmInfo = pet->GetCharmInfo();
+    if(!charmInfo)
+    {
+        sLog.outError("WorldSession::HandlePetSpellAutocastOpcod: object "I64FMTD" is considered pet-like but doesn't have a charminfo!", pet->GetGUID());
+        return;
+    }
+
+    if(pet->isCharmed())
+                                                            //state can be used as boolean
+        pet->GetCharmInfo()->ToggleCreatureAutocast(spellid, state);
+    else
+        ((Pet*)pet)->ToggleAutocast(spellid, state);
+
+    for(uint8 i = 0; i < 10; ++i)
+    {
+        if((charmInfo->GetActionBarEntry(i)->Type == ACT_ENABLED || charmInfo->GetActionBarEntry(i)->Type == ACT_DISABLED) && spellid == charmInfo->GetActionBarEntry(i)->SpellOrAction)
+            charmInfo->GetActionBarEntry(i)->Type = state ? ACT_ENABLED : ACT_DISABLED;
+    }
+}
+
+void WorldSession::HandlePetCastSpellOpcode( WorldPacket& recvPacket )
+{
+    sLog.outDetail("WORLD: CMSG_PET_CAST_SPELL");
+
+    CHECK_PACKET_SIZE(recvPacket,8+4);
+    uint64 guid;
+    uint32 spellid;
+
+    recvPacket >> guid >> spellid;
+
+    if(!_player->GetPet() && !_player->GetCharm())
+        return;
+
+    if(ObjectAccessor::FindPlayer(guid))
+        return;
+
+    Creature* pet=ObjectAccessor::GetCreatureOrPet(*_player,guid);
+
+    if(!pet || (pet != _player->GetPet() && pet!= _player->GetCharm()))
+    {
+        sLog.outError( "HandlePetCastSpellOpcode: Pet %u isn't pet of player %s .\n", uint32(GUID_LOPART(guid)),GetPlayer()->GetName() );
+        return;
+    }
+
+    SpellEntry const *spellInfo = sSpellStore.LookupEntry(spellid);
+    if(!spellInfo)
+    {
+        sLog.outError("WORLD: unknown PET spell id %i\n", spellid);
+        return;
+    }
+
+    // do not cast not learned spells
+    if(!pet->HasSpell(spellid) || IsPassiveSpell(spellid))
+        return;
+
+    SpellCastTargets targets;
+    if(!targets.read(&recvPacket,pet))
+        return;
+
+    pet->clearUnitState(UNIT_STAT_FOLLOW);
+
+    Spell *spell = new Spell(pet, spellInfo, false);
+    spell->m_targets = targets;
+
+    int16 result = spell->PetCanCast(NULL);
+    if(result == -1)
+    {
+        pet->AddCreatureSpellCooldown(spellid);
+        if(pet->isPet())
+        {
+            Pet* p = (Pet*)pet;
+            p->CheckLearning(spellid);
+            //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(p->getPetType() == SUMMON_PET && (urand(0, 100) < 10))
+                pet->SendPetTalk((uint32)PET_TALK_SPECIAL_SPELL);
+            else
+                pet->SendPetAIReaction(guid);
+        }
+
+        spell->prepare(&(spell->m_targets));
+    }
+    else
+    {
+        pet->SendPetCastFail(spellid, result);
+        if(!pet->HasSpellCooldown(spellid))
+            pet->SendPetClearCooldown(spellid);
+
+        spell->finish(false);
+        delete spell;
+    }
+}
+
+void WorldSession::SendPetNameInvalid(uint32 error, std::string name, DeclinedName *declinedName)
+{
+    WorldPacket data(SMSG_PET_NAME_INVALID, 4 + name.size() + 1 + 1);
+    data << uint32(error);
+    data << name;
+    if(declinedName)
+    {
+        data << uint8(1);
+        for(uint32 i = 0; i < MAX_DECLINED_NAME_CASES; ++i)
+            data << declinedName->name[i];
+    }
+    else
+        data << uint8(0);
+    SendPacket(&data);
+}