C++ SpellCastTargets::read方法代码示例

void WorldSession::HandleUseItemOpcode(WorldPacket& recvPacket)
{
    Player* p_User = GetPlayer();
    Log::getSingleton( ).outDetail("WORLD: got use Item packet, data length = %i\n",recvPacket.size());
    uint8 tmp1,slot,tmp3;
    uint32 spellId;

    recvPacket >> tmp1 >> slot >> tmp3;

    Item* tmpItem = new Item;
    tmpItem = p_User->GetItemBySlot(slot);
    ItemPrototype *itemProto = tmpItem->GetProto();
    spellId = itemProto->SpellId[0];

    // check for spell id
    SpellEntry *spellInfo = sSpellStore.LookupEntry( spellId );

    if(!spellInfo)
    {
        Log::getSingleton( ).outError("WORLD: unknown spell id %i\n", spellId);
        return;
    }

    Spell *spell = new Spell(GetPlayer(), spellInfo,false, 0);
    WPAssert(spell);

    SpellCastTargets targets;
    targets.read(&recvPacket,GetPlayer()->GetGUID());
    spell->m_CastItem = tmpItem;
    spell->prepare(&targets);
}

void WorldSession::HandleCastSpellOpcode(WorldPacket& recvPacket)
{
    uint32 spellId;

    recvPacket >> spellId;

    sLog.outDetail("WORLD: got cast spell packet, spellId - %i, data length = %i",
        spellId, recvPacket.size());

    SpellEntry const *spellInfo = sSpellStore.LookupEntry(spellId );

    if(!spellInfo)
    {
        sLog.outError("WORLD: unknown spell id %i\n", spellId);
        return;
    }

    if ( !_player->HasSpell (spellId) )
    {
        //cheater? kick? ban?
        return;
    }

    Spell *spell ;
    spell = new Spell(_player, spellInfo, false, 0);

    SpellCastTargets targets;
    targets.read(&recvPacket,_player);
    spell->prepare(&targets);

}

void WorldSession::HandleCastSpellOpcode(WorldPacket& recvPacket)
{
    uint32 spellId;

    recvPacket >> spellId;

    Log::getSingleton( ).outDetail("WORLD: got cast spell packet, spellId - %i, data length = %i\n",
        spellId, recvPacket.size());

    // check for spell id
    SpellEntry *spellInfo = sSpellStore.LookupEntry(spellId );

    if(!spellInfo)
    {
        Log::getSingleton( ).outError("WORLD: unknown spell id %i\n", spellId);
        return;
    }

    Spell *spell = new Spell(GetPlayer(), spellInfo, false, 0);
    WPAssert(spell);

    SpellCastTargets targets;
    targets.read(&recvPacket,GetPlayer()->GetGUID());

    spell->prepare(&targets);
}

void WorldSession::HandleAddDynamicTargetOpcode(WorldPacket & recvPacket)
{

	DEBUG_LOG( "WORLD"," got CMSG_PET_CAST_SPELL." );
	uint64 guid;
	uint8 counter;
	uint32 spellid;
	uint8 flags;
	UnitPointer caster;
	SpellCastTargets targets;
	SpellEntry *sp;
	SpellPointer pSpell;
	list<AI_Spell*>::iterator itr;

	recvPacket >> guid >> counter >> spellid >> flags;
	sp = dbcSpell.LookupEntry(spellid);

	// Summoned Elemental's Freeze
    if (spellid == 33395)
	{
		caster = _player->m_Summon;
		if( caster && TO_PET(caster)->GetAISpellForSpellId(spellid) == NULL )
			return;
	}
	else
	{
		caster = _player->m_CurrentCharm;
		if( caster != NULL )
		{
			for(itr = caster->GetAIInterface()->m_spells.begin(); itr != caster->GetAIInterface()->m_spells.end(); ++itr)
			{
				if( (*itr)->spell->Id == spellid )
					break;
			}

			if( itr == caster->GetAIInterface()->m_spells.end() )
				return;
		}
	}

	if( caster == NULL || guid != caster->GetGUID() )
		return;
	
	targets.read(recvPacket, _player->GetGUID());

	pSpell = SpellPointer(new Spell(caster, sp, false, NULLAURA));
	pSpell->prepare(&targets);
}

void WorldSession::HandlePetCastSpell(WorldPacket & recvPacket)
{

	CHECK_INWORLD_RETURN

	uint64 guid = 0;
	uint8  castCount = 0;
	uint32 spellid = 0;
	uint8  castflags = 0;
	uint32 targetmask = 0;

	recvPacket >> guid;
	recvPacket >> castCount;
	recvPacket >> spellid;
	recvPacket >> castflags;

	SpellEntry* sp = dbcSpell.LookupEntryForced(spellid);
	if(sp == NULL)
		return;
	// Summoned Elemental's Freeze
	if(spellid == 33395)
	{
		if(!_player->GetSummon())
			return;
	}
	else if(guid != _player->m_CurrentCharm)
	{
		if( _player->GetCharmedUnitGUID() != guid )
			return;
	}

	SpellCastTargets targets;
	targets.read( recvPacket, guid );

	float missilepitch = 0.0f;
	float missilespeed = 0;
	uint32 traveltime  = 0;
	
	if( castflags & 2 ){
		recvPacket >> missilepitch;
		recvPacket >> missilespeed;

		float dx = targets.m_destX - targets.m_srcX;
		float dy = targets.m_destY - targets.m_srcY;

		if( ( missilepitch != M_PI / 4 ) && ( missilepitch != -M_PI / 4 ) ) //lets not divide by 0 lul
			traveltime = ( sqrtf( dx * dx + dy * dy ) / ( cosf( missilepitch ) * missilespeed ) ) * 1000;
	}

void WorldSession::HandleCastSpellOpcode(WorldPacket& recvPacket)
{
    CHECK_PACKET_SIZE(recvPacket,1+4+1);

    uint32 spellId;
    uint8  cast_count, unk_flags;
    recvPacket >> cast_count;
    recvPacket >> spellId;
    recvPacket >> unk_flags;                                // flags (if 0x02 - some additional data are received)

    sLog.outDebug("WORLD: got cast spell packet, spellId - %u, cast_count: %u, unk_flags %u, data length = %i",
        spellId, cast_count, unk_flags, recvPacket.size());

    SpellEntry const *spellInfo = sSpellStore.LookupEntry(spellId );

    if(!spellInfo)
    {
        sLog.outError("WORLD: unknown spell id %u", spellId);
        return;
    }

    // not have spell or spell passive and not casted by client
    if ( !_player->HasSpell (spellId) || IsPassiveSpell(spellId) )
    {
        //cheater? kick? ban?
        return;
    }

    // client provided targets
    SpellCastTargets targets;
    if(!targets.read(&recvPacket,_player))
        return;

    // auto-selection buff level base at target level (in spellInfo)
    if(targets.getUnitTarget())
    {
        SpellEntry const *actualSpellInfo = spellmgr.SelectAuraRankForPlayerLevel(spellInfo,targets.getUnitTarget()->getLevel());

        // 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)
            spellInfo = actualSpellInfo;
    }

    Spell *spell = new Spell(_player, spellInfo, false);
    spell->m_cast_count = cast_count;                       // set count of casts
    spell->prepare(&targets);
}

void WorldSession::HandlePetCastSpellOpcode( WorldPacket& recvPacket )
{
    sLog.outDetail("WORLD: CMSG_PET_CAST_SPELL");

    uint64 guid;
    uint32 spellid;
    uint8  cast_count;
    uint8  unk_flags;                                       // flags (if 0x02 - some additional data are received)

    recvPacket >> guid >> cast_count >> spellid >> unk_flags;

    sLog.outDebug("WORLD: CMSG_PET_CAST_SPELL, cast_count: %u, spellid %u, unk_flags %u", cast_count, spellid, unk_flags);

    if (!_player->GetPet() && !_player->GetCharm())
        return;

    Creature* pet = _player->GetMap()->GetCreatureOrPetOrVehicle(guid);

    if (!pet || (pet != _player->GetPet() && pet!= _player->GetCharm()))
    {
        sLog.outError( "HandlePetCastSpellOpcode: Pet %u isn't pet of player %s .", uint32(GUID_LOPART(guid)),GetPlayer()->GetName() );
        return;
    }

    SpellEntry const *spellInfo = sSpellStore.LookupEntry(spellid);
    if (!spellInfo)
    {
        sLog.outError("WORLD: unknown PET spell id %i", spellid);
        return;
    }

	if (pet->GetCharmInfo() && pet->GetCharmInfo()->GetGlobalCooldownMgr().HasGlobalCooldown(spellInfo))
		return;

    // do not cast not learned spells
    if (!pet->HasSpell(spellid) || IsPassiveSpell(spellInfo))
        return;

    SpellCastTargets targets;
    if (!targets.read(&recvPacket,pet))
        return;

	pet->DoPetCastSpell(GetPlayer(), cast_count, targets, spellInfo );
}

void WorldSession::HandlePetCastSpellOpcode(WorldPacket& recvPacket)
{
    sLog->outDetail("WORLD: CMSG_PET_CAST_SPELL");

    uint64 guid;
    uint8  castCount;
    uint32 spellId;
    uint8  castFlags;

    recvPacket >> guid >> castCount >> spellId >> castFlags;

    sLog->outDebug("WORLD: CMSG_PET_CAST_SPELL, guid: " UI64FMTD ", castCount: %u, spellId %u, castFlags %u", guid, castCount, spellId, castFlags);

    // This opcode is also sent from charmed and possessed units (players and creatures)
    if (!_player->GetGuardianPet() && !_player->GetCharm())
        return;

    Unit* caster = ObjectAccessor::GetUnit(*_player, guid);

    if (!caster || (caster != _player->GetGuardianPet() && caster != _player->GetCharm()))
    {
        sLog->outError("HandlePetCastSpellOpcode: Pet %u isn't pet of player %s .", uint32(GUID_LOPART(guid)),GetPlayer()->GetName());
        return;
    }

    SpellEntry const *spellInfo = sSpellStore.LookupEntry(spellId);
    if (!spellInfo)
    {
        sLog->outError("WORLD: unknown PET spell id %i", spellId);
        return;
    }

    if (spellInfo->StartRecoveryCategory > 0) // Check if spell is affected by GCD
        if (caster->GetTypeId() == TYPEID_UNIT && caster->ToCreature()->GetGlobalCooldown() > 0)
        {
            caster->SendPetCastFail(spellId, SPELL_FAILED_NOT_READY);
            return;
        }

    // do not cast not learned spells
    if (!caster->HasSpell(spellId) || IsPassiveSpell(spellId))
        return;

    SpellCastTargets targets;
    targets.read(recvPacket, caster);
    HandleClientCastFlags(recvPacket, castFlags, targets);

    caster->ClearUnitState(UNIT_STAT_FOLLOW);

    Spell *spell = new Spell(caster, spellInfo, false);
    spell->m_cast_count = castCount;                    // probably pending spell cast
    spell->m_targets = targets;

    // TODO: need to check victim?
    SpellCastResult result;
    if (caster->m_movedPlayer)
        result = spell->CheckPetCast(caster->m_movedPlayer->GetSelectedUnit());
    else
        result = spell->CheckPetCast(NULL);
    if (result == SPELL_CAST_OK)
    {
        if (caster->GetTypeId() == TYPEID_UNIT)
        {
            Creature* pet = caster->ToCreature();
            pet->AddCreatureSpellCooldown(spellId);
            if (pet->isPet())
            {
                Pet* p = (Pet*)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 (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
    {
        caster->SendPetCastFail(spellId, result);
        if (caster->GetTypeId() == TYPEID_PLAYER)
        {
            if (!caster->ToPlayer()->HasSpellCooldown(spellId))
                GetPlayer()->SendClearCooldown(spellId, caster);
        }
        else
        {
            if (!caster->ToCreature()->HasSpellCooldown(spellId))
                GetPlayer()->SendClearCooldown(spellId, caster);
        }

        spell->finish(false);
        delete spell;
    }
}

void WorldSession::HandleUseItemOpcode(WorldPacket& recvPacket)
{
    // TODO: add targets.read() check
    Player* pUser = _player;

    // ignore for remote control state
    if (pUser->m_mover != pUser)
        return;

    uint8 bagIndex, slot;
    uint8 unk_flags;                                        // flags (if 0x02 - some additional data are received)
    uint8 cast_count;                                       // next cast if exists (single or not)
    uint64 item_guid;
    uint32 glyphIndex;                                      // something to do with glyphs?
    uint32 spellid;                                         // casted spell id

    recvPacket >> bagIndex >> slot >> cast_count >> spellid >> item_guid >> glyphIndex >> unk_flags;

    Item *pItem = pUser->GetUseableItemByPos(bagIndex, slot);
    if (!pItem)
    {
        pUser->SendEquipError(EQUIP_ERR_ITEM_NOT_FOUND, NULL, NULL );
        return;
    }

    if (pItem->GetGUID() != item_guid)
    {
        pUser->SendEquipError(EQUIP_ERR_ITEM_NOT_FOUND, NULL, NULL );
        return;
    }

    sLog.outDetail("WORLD: CMSG_USE_ITEM packet, bagIndex: %u, slot: %u, cast_count: %u, spellid: %u, Item: %u, glyphIndex: %u, unk_flags: %u, data length = %i", bagIndex, slot, cast_count, spellid, pItem->GetEntry(), glyphIndex, unk_flags, (uint32)recvPacket.size());

    ItemPrototype const *proto = pItem->GetProto();
    if (!proto)
    {
        pUser->SendEquipError(EQUIP_ERR_ITEM_NOT_FOUND, pItem, NULL );
        return;
    }

    // some item classes can be used only in equipped state
    if (proto->InventoryType != INVTYPE_NON_EQUIP && !pItem->IsEquipped())
    {
        pUser->SendEquipError(EQUIP_ERR_ITEM_NOT_FOUND, pItem, NULL );
        return;
    }

    uint8 msg = pUser->CanUseItem(pItem);
    if ( msg != EQUIP_ERR_OK )
    {
        pUser->SendEquipError( msg, pItem, NULL );
        return;
    }

    // only allow conjured consumable, bandage, poisons (all should have the 2^21 item flag set in DB)
    if ( proto->Class == ITEM_CLASS_CONSUMABLE &&
        !(proto->Flags & ITEM_FLAGS_USEABLE_IN_ARENA) &&
        pUser->InArena())
    {
        pUser->SendEquipError(EQUIP_ERR_NOT_DURING_ARENA_MATCH,pItem,NULL);
        return;
    }

    if (pUser->isInCombat())
    {
        for (int i = 0; i < MAX_ITEM_PROTO_SPELLS; ++i)
        {
            if (SpellEntry const *spellInfo = sSpellStore.LookupEntry(proto->Spells[i].SpellId))
            {
                if (IsNonCombatSpell(spellInfo))
                {
                    pUser->SendEquipError(EQUIP_ERR_NOT_IN_COMBAT,pItem,NULL);
                    return;
                }
            }
        }
    }

    // check also  BIND_WHEN_PICKED_UP and BIND_QUEST_ITEM for .additem or .additemset case by GM (not binded at adding to inventory)
    if ( pItem->GetProto()->Bonding == BIND_WHEN_USE || pItem->GetProto()->Bonding == BIND_WHEN_PICKED_UP || pItem->GetProto()->Bonding == BIND_QUEST_ITEM )
    {
        if (!pItem->IsSoulBound())
        {
            pItem->SetState(ITEM_CHANGED, pUser);
            pItem->SetBinding( true );
        }
    }

    SpellCastTargets targets;
    if (!targets.read(&recvPacket, pUser))
        return;

    targets.Update(pUser);

    if (!pItem->IsTargetValidForItemUse(targets.getUnitTarget()))
    {
        // free gray item after use fail
        pUser->SendEquipError(EQUIP_ERR_NONE, pItem, NULL);

        // send spell error
//.........这里部分代码省略.........

void WorldSession::HandlePetCastSpellOpcode( WorldPacket& recvPacket )
{
    sLog.outDetail("WORLD: CMSG_PET_CAST_SPELL");

    CHECK_PACKET_SIZE(recvPacket,8+1+4+1);
    uint64 guid;
    uint32 spellid;
    uint8  cast_count;
    uint8  unk_flags;                                       // flags (if 0x02 - some additional data are received)

    recvPacket >> guid >> cast_count >> spellid >> unk_flags;

    sLog.outDebug("WORLD: CMSG_PET_CAST_SPELL, cast_count: %u, spellid %u, unk_flags %u", cast_count, spellid, unk_flags);

    if(!_player->GetPet() && !_player->GetCharm())
        return;

    if (GUID_HIPART(guid) == HIGHGUID_PLAYER)
        return;

    Creature* pet = ObjectAccessor::GetCreatureOrPetOrVehicle(*_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;
    }

    if (pet->GetGlobalCooldown() > 0)
        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_cast_count = cast_count;                       // probably pending spell cast
    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::HandleCastSpellOpcode(WorldPacket& recvPacket)
{
    uint32 spellId;
    uint8  cast_count, unk_flags;
    recvPacket >> cast_count;
    recvPacket >> spellId;
    recvPacket >> unk_flags;                                // flags (if 0x02 - some additional data are received)

    // ignore for remote control state (for player case)
    Unit* mover = _player->m_mover;
    if (mover != _player && mover->GetTypeId() == TYPEID_PLAYER)
    {
        recvPacket.rpos(recvPacket.wpos());                 // prevent spam at ignore packet
        return;
    }

    sLog.outDebug("WORLD: got cast spell packet, spellId - %u, cast_count: %u, unk_flags %u, data length = %i",
        spellId, cast_count, unk_flags, (uint32)recvPacket.size());

    SpellEntry const *spellInfo = sSpellStore.LookupEntry(spellId );

    if (!spellInfo)
    {
        sLog.outError("WORLD: unknown spell id %u", spellId);
        recvPacket.rpos(recvPacket.wpos());                 // prevent spam at ignore packet
        return;
    }

    if (mover->GetTypeId() == TYPEID_PLAYER)
    {
        // not have spell in spellbook or spell passive and not casted by client
        if (!((Player*)mover)->HasActiveSpell (spellId) || IsPassiveSpell(spellId) )
        {
            //cheater? kick? ban?
            recvPacket.rpos(recvPacket.wpos());                 // prevent spam at ignore packet
            return;
        }
    }
    else
    {
        // not have spell in spellbook or spell passive and not casted by client
        if (!((Creature*)mover)->HasSpell(spellId) || IsPassiveSpell(spellId) )
        {
            //cheater? kick? ban?
            recvPacket.rpos(recvPacket.wpos());                 // prevent spam at ignore packet
            return;
        }
    }

    // Client is resending autoshot cast opcode when other spell is casted during shoot rotation
    // Skip it to prevent "interrupt" message
    if (IsAutoRepeatRangedSpell(spellInfo) && _player->GetCurrentSpell(CURRENT_AUTOREPEAT_SPELL)
        && _player->GetCurrentSpell(CURRENT_AUTOREPEAT_SPELL)->m_spellInfo == spellInfo)
        return;

    // can't use our own spells when we're in possession of another unit,
    if (_player->isPossessing())
        return;

    // client provided targets
    SpellCastTargets targets;
    if (!targets.read(&recvPacket,mover))
    {
        recvPacket.rpos(recvPacket.wpos());                 // prevent spam at ignore packet
        return;
    }

    // some spell cast packet including more data (for projectiles?)
    if (unk_flags & 0x02)
    {
        //recvPacket.read_skip<float>();                      // unk1, coords?
        //recvPacket.read_skip<float>();                      // unk1, coords?
        uint8 unk1;
        recvPacket >> unk1;                                 // >> 1 or 0
        if (unk1)
        {
            recvPacket.read_skip<uint32>();                 // >> MSG_MOVE_STOP
            uint64 guid;                                    // guid - unused
            if (!recvPacket.readPackGUID(guid))
                return;

            MovementInfo movementInfo;
            ReadMovementInfo(recvPacket, &movementInfo);
        }
    }

void WorldSession::HandleUseItemOpcode(WorldPacket& recvPacket)
{
    // TODO: add targets.read() check
    CHECK_PACKET_SIZE(recvPacket,1+1+1);

    sLog.outDetail("WORLD: CMSG_USE_ITEM packet, data length = %i",recvPacket.size());

    Player* pUser = _player;
    uint8 bagIndex, slot, tmp3;

    recvPacket >> bagIndex >> slot >> tmp3;

    Item *pItem = pUser->GetItemByPos(bagIndex, slot);
    if(!pItem)
    {
        pUser->SendEquipError(EQUIP_ERR_ITEM_NOT_FOUND, NULL, NULL );
        return;
    }

    ItemPrototype const *proto = pItem->GetProto();
    if(!proto)
    {
        pUser->SendEquipError(EQUIP_ERR_ITEM_NOT_FOUND, pItem, NULL );
        return;
    }

    uint8 msg = pUser->CanUseItem(pItem);
    if( msg != EQUIP_ERR_OK )
    {
        pUser->SendEquipError( msg, pItem, NULL );
        return;
    }

    if (pUser->isInCombat())
    {
        for(int i = 0; i <5; ++i)
        {
            if (IsNonCombatSpell(proto->Spells[i].SpellId))
            {
                pUser->SendEquipError(EQUIP_ERR_NOT_IN_COMBAT,pItem,NULL);
                return;
            } 
        }
    }

    // check also  BIND_WHEN_PICKED_UP for .additem or .additemset case by GM (not binded at adding to inventory)
    if( pItem->GetProto()->Bonding == BIND_WHEN_USE || pItem->GetProto()->Bonding == BIND_WHEN_PICKED_UP)
    {
        if (!pItem->IsSoulBound())
        {
            pItem->SetState(ITEM_CHANGED, pUser);
            pItem->SetBinding( true );
        }
    }

    SpellCastTargets targets;
    if(!targets.read(&recvPacket, pUser))
        return;

    //Note: If script stop casting it must send appropriate data to client to prevent stuck item in gray state.
    if(!Script->ItemUse(pUser,pItem,targets))
    {
        // no script or script not process request by self

        // use triggered flag only for items with many spell casts and for not first cast
        int count = 0;

        for(int i = 0; i <5; ++i)
        {
            _Spell const& spellData = pItem->GetProto()->Spells[i];

            // no spell
            if(!spellData.SpellId)
                continue;

            // wrong triggering type
            if( spellData.SpellTrigger != ITEM_SPELLTRIGGER_ON_USE && spellData.SpellTrigger != ITEM_SPELLTRIGGER_ON_NO_DELAY_USE)
                continue;

            SpellEntry const *spellInfo = sSpellStore.LookupEntry(spellData.SpellId);
            if(!spellInfo)
            {
                sLog.outError("Item (Entry: %u) in have wrong spell id %u, ignoring ",proto->ItemId, spellData.SpellId);
                continue;
            }

            Spell *spell = new Spell(pUser, spellInfo, (count > 0) , 0);
            spell->m_CastItem = pItem;
            spell->prepare(&targets);

            ++count;
        }
    }
}

void WorldSession::HandleCastSpellOpcode(WorldPacket& recvPacket)
{
    CHECK_PACKET_SIZE(recvPacket,4+2);

    uint32 spellId;

    recvPacket >> spellId;

    sLog.outDetail("WORLD: got cast spell packet, spellId - %i, data length = %i",
        spellId, recvPacket.size());

    SpellEntry const *spellInfo = sSpellStore.LookupEntry(spellId );

    if(!spellInfo)
    {
        sLog.outError("WORLD: unknown spell id %i\n", spellId);
        return;
    }

    // not have spell or spell passive and not casted by client
    if ( !_player->HasSpell (spellId) || IsPassiveSpell(spellId) )
    {
        //cheater? kick? ban?
        return;
    }

    // client provided targets
    SpellCastTargets targets;
    if(!targets.read(&recvPacket,_player))
        return;

    // auto-selection buff level base at target level (in spellInfo)
    if(!IsPassiveSpell(spellId) && targets.getUnitTarget())
    {
        bool needRankSelection = false;
        for(int i=0;i<3;i++)
        {
            if(IsPositiveEffect(spellId, i) && spellInfo->Effect[i] == SPELL_EFFECT_APPLY_AURA)
            {
                needRankSelection = true;
                break;
            }
        }

        if(needRankSelection)
        {
            for(uint32 nextSpellId = spellId; nextSpellId!=0; nextSpellId = objmgr.GetPrevSpellInChain(nextSpellId))
            {
                SpellEntry const *nextSpellInfo = sSpellStore.LookupEntry(nextSpellId);
                if(!nextSpellInfo)
                    break;

                // if found appropriate level
                if(targets.getUnitTarget()->getLevel() + 10 >= nextSpellInfo->spellLevel)
                {
                    SpellEntry const *spellInfo = sSpellStore.LookupEntry(nextSpellId);
                    break;
                }
            }

            // if appropriate spell rank not found spellInfo store original casted spell and will output error in Spell::CanCast
        }
    }

    Spell *spell = new Spell(_player, spellInfo, false, 0);
    spell->prepare(&targets);
}

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;

    // This opcode is also sent from charmed and possessed units (players and creatures)
    if(!_player->GetPet() && !_player->GetCharm())
        return;

    Unit* caster = ObjectAccessor::GetUnit(*_player, guid);

    if(!caster || (caster != _player->GetPet() && caster != _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(!caster->HasSpell(spellid) || IsPassiveSpell(spellid))
        return;

    if (spellInfo->StartRecoveryCategory > 0) //Check if spell is affected by GCD
        if (caster->GetTypeId() == TYPEID_UNIT && ((Creature*)caster)->GetGlobalCooldown() > 0)
        {
            caster->SendPetCastFail(spellid, SPELL_FAILED_NOT_READY);
            return;
        }

    SpellCastTargets targets;
    if(!targets.read(&recvPacket,caster))
        return;

    caster->clearUnitState(UNIT_STAT_FOLLOW);

    Spell *spell = new Spell(caster, spellInfo, spellid == 33395); // water elemental can cast freeze as triggered
    spell->m_targets = targets;

    int16 result = spell->PetCanCast(NULL);
    if(result == -1)
    {
        if(caster->GetTypeId() == TYPEID_UNIT)
        {
            Creature* pet = (Creature*)caster;
            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
    {
        caster->SendPetCastFail(spellid, result);
        if(caster->GetTypeId() == TYPEID_PLAYER)
        {
            if(!((Player*)caster)->HasSpellCooldown(spellid))
                caster->SendPetClearCooldown(spellid);
        }
        else
        {
            if(!((Creature*)caster)->HasSpellCooldown(spellid))
                caster->SendPetClearCooldown(spellid);
        }

        spell->finish(false);
        delete spell;
    }
}

void WorldSession::HandleCastSpellOpcode(WorldPacket& recvPacket)
{
    uint32 spellId;
    uint8  cast_count, unk_flags;
    recvPacket >> cast_count;
    recvPacket >> spellId;
    recvPacket >> unk_flags;                                // flags (if 0x02 - some additional data are received)

    // ignore for remote control state (for player case)
    Unit* mover = _player->m_mover;
    if(mover != _player && mover->GetTypeId()==TYPEID_PLAYER)
    {
        recvPacket.rpos(recvPacket.wpos());                 // prevent spam at ignore packet
        return;
    }

    // vehicle spells are handled by CMSG_PET_CAST_SPELL,
    // but player is still able to cast own spells
    if(_player->GetCharmGUID() && _player->GetCharmGUID() == _player->GetVehicleGUID())
        mover = _player;

    sLog.outDebug("WORLD: got cast spell packet, spellId - %u, cast_count: %u, unk_flags %u, data length = %i",
        spellId, cast_count, unk_flags, (uint32)recvPacket.size());

    SpellEntry const *spellInfo = sSpellStore.LookupEntry(spellId );

    if(!spellInfo)
    {
        sLog.outError("WORLD: unknown spell id %u", spellId);
        recvPacket.rpos(recvPacket.wpos());                 // prevent spam at ignore packet
        return;
    }

    if(mover->GetTypeId()==TYPEID_PLAYER)
    {
        // not have spell in spellbook or spell passive and not casted by client
        if (!((Player*)mover)->HasActiveSpell (spellId) || IsPassiveSpell(spellId) )
        {
            //cheater? kick? ban?
            recvPacket.rpos(recvPacket.wpos());                 // prevent spam at ignore packet
            return;
        }
    }
    else
    {
        // not have spell in spellbook or spell passive and not casted by client
        if (!((Creature*)mover)->HasSpell(spellId) || IsPassiveSpell(spellId) )
        {
            //cheater? kick? ban?
            recvPacket.rpos(recvPacket.wpos());                 // prevent spam at ignore packet
            return;
        }
    }

    // client provided targets
    SpellCastTargets targets;
    if(!targets.read(&recvPacket,mover))
    {
        recvPacket.rpos(recvPacket.wpos());                 // prevent spam at ignore packet
        return;
    }

    // some spell cast packet including more data (for projectiles?)
    if (unk_flags & 0x02)
    {
        recvPacket.read_skip<float>();                      // unk1, coords?
        recvPacket.read_skip<float>();                      // unk1, coords?
        recvPacket.read_skip<uint8>();                      // >> 1
        recvPacket.read_skip<uint32>();                     // >> MSG_MOVE_STOP
        MovementInfo movementInfo;
        ReadMovementInfo(recvPacket, &movementInfo);
    }

    // auto-selection buff level base at target level (in spellInfo)
    if(targets.getUnitTarget())
    {
        SpellEntry const *actualSpellInfo = spellmgr.SelectAuraRankForPlayerLevel(spellInfo,targets.getUnitTarget()->getLevel());

        // 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)
            spellInfo = actualSpellInfo;
    }

    Spell *spell = new Spell(mover, spellInfo, false);
    spell->m_cast_count = cast_count;                       // set count of casts
    spell->prepare(&targets);
}