C++ SpellCastTargets::ReadAdditionalData方法代码示例

void WorldSession::HandlePetCastSpellOpcode(WorldPacket& recvPacket)
{
    DETAIL_LOG("WORLD: CMSG_PET_CAST_SPELL");

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

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

    DEBUG_LOG("WORLD: CMSG_PET_CAST_SPELL, %s, cast_count: %u, spellid %u, unk_flags %u", guid.GetString().c_str(), cast_count, spellid, unk_flags);

    Creature* pet = GetPlayer()->GetMap()->GetAnyTypeCreature(guid);

    if (!pet || (guid != _player->GetPetGuid() && guid != _player->GetCharmGuid()))
    {
        sLog.outError("HandlePetCastSpellOpcode: %s isn't pet of %s .", guid.GetString().c_str(), GetPlayer()->GetGuidStr().c_str());
        return;
    }
    SpellCastTargets targets;
    recvPacket >> targets.ReadForCaster(pet);

    // some spell cast packet including more data (for projectiles?)
    if (unk_flags & 0x02)
        targets.ReadAdditionalData(recvPacket);

    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;

    bool triggered = bool(pet->GetTriggeredByClientAura(spellid));

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

    if (pet->IsNonMeleeSpellCasted(false) && !triggered)
        pet->InterruptNonMeleeSpells(false);


    if (pet->IsPet() || pet->isCharmed())
        GetPlayer()->CallForAllControlledUnits(DoPetCastWithHelper(GetPlayer(), cast_count, &targets, spellInfo ),CONTROLLED_PET|CONTROLLED_GUARDIANS|CONTROLLED_CHARM);

}

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

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

    DEBUG_LOG("WORLD: got cast spell packet, spellId - %u, cast_count: %u, cast_flags %u, data length = " SIZEFMTD,
              spellId, cast_count, cast_flags, 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(spellInfo))
        {
            sLog.outError("World: Player %u casts spell %u which he shouldn't have", mover->GetGUIDLow(), 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(spellInfo))
        {
            // cheater? kick? ban?
            recvPacket.rpos(recvPacket.wpos());             // prevent spam at ignore packet
            return;
        }
    }

    // client provided targets
    SpellCastTargets targets;

    recvPacket >> targets.ReadForCaster(mover);

    targets.ReadAdditionalData(recvPacket, cast_flags);

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

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

//.........这里部分代码省略.........
        recvPacket.rpos(recvPacket.wpos());                 // prevent spam at not read packet tail
        pUser->SendEquipError(EQUIP_ERR_ITEM_NOT_FOUND, pItem, NULL);
        return;
    }

    InventoryResult msg = pUser->CanUseItem(pItem);
    if (msg != EQUIP_ERR_OK)
    {
        recvPacket.rpos(recvPacket.wpos());                 // prevent spam at not read packet tail
        pUser->SendEquipError(msg, pItem, NULL);
        return;
    }

    // not allow use item from trade (cheat way only)
    if (pItem->IsInTrade())
    {
        recvPacket.rpos(recvPacket.wpos());                 // prevent spam at not read packet tail
        pUser->SendEquipError(EQUIP_ERR_ITEM_NOT_FOUND, 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_FLAG_USEABLE_IN_ARENA) &&
            pUser->InArena())
    {
        recvPacket.rpos(recvPacket.wpos());                 // prevent spam at not read packet tail
        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))
                {
                    recvPacket.rpos(recvPacket.wpos());     // prevent spam at not read packet tail
                    pUser->SendEquipError(EQUIP_ERR_NOT_IN_COMBAT, pItem, NULL);
                    return;
                }
            }
        }

        // Prevent potion drink if another potion in processing (client have potions disabled in like case)
        if (pItem->IsPotion() && pUser->GetLastPotionId())
        {
            recvPacket.rpos(recvPacket.wpos());             // prevent spam at not read packet tail
            pUser->SendEquipError(EQUIP_ERR_OBJECT_IS_BUSY, 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;

    recvPacket >> targets.ReadForCaster(pUser);

    targets.Update(pUser);

    targets.ReadAdditionalData(recvPacket, cast_flags);

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

        // send spell error
        if (SpellEntry const* spellInfo = sSpellStore.LookupEntry(spellid))
        {
            SpellEffectEntry const* spellEffect = spellInfo->GetSpellEffect(EFFECT_INDEX_0);
            // for implicit area/coord target spells
            if (spellEffect && (IsPointEffectTarget(Targets(spellEffect->EffectImplicitTargetA)) ||
                IsAreaEffectTarget(Targets(spellEffect->EffectImplicitTargetA))))
                Spell::SendCastResult(_player,spellInfo,cast_count,SPELL_FAILED_NO_VALID_TARGETS);
            // for explicit target spells
            else
                Spell::SendCastResult(_player, spellInfo, cast_count, SPELL_FAILED_BAD_TARGETS);
        }
        return;
    }

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

void WorldSession::HandlePetCastSpellOpcode(WorldPacket& recvPacket)
{
    DETAIL_LOG("WORLD: CMSG_PET_CAST_SPELL");

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

    recvPacket >> guid >> cast_count >> spellid >> cast_flags;

    DEBUG_LOG("WORLD: CMSG_PET_CAST_SPELL, %s, cast_count: %u, spellid %u, cast_flags %u", guid.GetString().c_str(), cast_count, spellid, cast_flags);

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

    if (!pet || (guid != _player->GetPetGuid() && guid != _player->GetCharmGuid()))
    {
        sLog.outError("HandlePetCastSpellOpcode: %s isn't pet of %s .", guid.GetString().c_str(), _player->GetGuidStr().c_str());
        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;

    Aura* triggeredByAura = pet->GetTriggeredByClientAura(spellid);

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

    SpellCastTargets targets;

    recvPacket >> targets.ReadForCaster(pet);

    targets.ReadAdditionalData(recvPacket, cast_flags);

    pet->clearUnitState(UNIT_STAT_MOVING);

    Spell* spell = new Spell(pet, spellInfo, triggeredByAura ? true : false, pet->GetObjectGuid(), triggeredByAura ? triggeredByAura->GetSpellProto() : nullptr);
    spell->m_cast_count = cast_count;                       // probably pending spell cast
    spell->m_targets = targets;

    SpellCastResult result = triggeredByAura ? SPELL_CAST_OK : spell->CheckPetCast(nullptr);
    if (result == SPELL_CAST_OK)
    {
        pet->AddCreatureSpellCooldown(spellid);
        spell->SpellStart(&(spell->m_targets), triggeredByAura);
    }
    else
    {
        Unit* owner = pet->GetCharmerOrOwner();
        if (owner && owner->GetTypeId() == TYPEID_PLAYER && !triggeredByAura)
            Spell::SendCastResult((Player*)owner, spellInfo, 0, result, true);

        if (!pet->HasSpellCooldown(spellid) && !triggeredByAura)
            GetPlayer()->SendClearCooldown(spellid, pet);

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

//.........这里部分代码省略.........
    }

    Unit::AuraList const& m363auras = mover->GetAurasByType(SPELL_AURA_363);
    for (Unit::AuraList::const_iterator itr = m363auras.begin(); itr != m363auras.end(); ++itr)
    {
        if ((*itr)->GetSpellEffect()->EffectTriggerSpell == spellId)
        {
            triggered = true;
            mover->RemoveSpellAuraHolder((*itr)->GetHolder());
            break;
        }
    }

    if (!spellInfo->HasAttribute(SPELL_ATTR_EX8_RAID_MARKER))
    {
        if (mover->GetTypeId()==TYPEID_PLAYER)
        {
            // not have spell in spellbook or spell passive and not casted by client
            if ((!((Player*)mover)->HasActiveSpell(spellId) && !triggered || IsPassiveSpell(spellInfo)) && !sSpellMgr.IsAbilityOfSkillType(spellInfo, SKILL_ARCHAEOLOGY))
            {
                sLog.outError("WorldSession::HandleCastSpellOpcode: %s casts spell %u which he shouldn't have", mover->GetObjectGuid().GetString().c_str(), 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) && !triggered || IsPassiveSpell(spellInfo))
            {
                sLog.outError("World: Player %u casts spell %u which he shouldn't have", mover->GetGUIDLow(), spellId);
                //cheater? kick? ban?
                recvPacket.rpos(recvPacket.wpos());                 // prevent spam at ignore packet
                return;
            }
        }
    }

    Unit::AuraList swaps = _mover->GetAurasByType(SPELL_AURA_OVERRIDE_ACTIONBAR_SPELLS);
    Unit::AuraList const& swaps2 = _mover->GetAurasByType(SPELL_AURA_OVERRIDE_ACTIONBAR_SPELLS_2);
    if (!swaps2.empty())
        swaps.insert(swaps.end(), swaps2.begin(), swaps2.end());

    for (Unit::AuraList::const_iterator itr = swaps.begin(); itr != swaps.end(); ++itr)
    {
        if ((*itr)->isAffectedOnSpell(spellInfo))
        {
            if (SpellEntry const* newInfo = sSpellStore.LookupEntry((*itr)->GetModifier()->m_amount))
            {
                spellInfo = newInfo;
                spellId = newInfo->Id;
                // Force triggered to spells mirrored by Dark Simulacrum
                if ((*itr)->GetId() == 77616)
                    triggered = true;
            }
            break;
        }
    }

    // Lifebloom
    if (spellId == 33763)
    {
        // search Tree of Life (Passive)
        if (Aura* aura = _mover->GetAura(81098, EFFECT_INDEX_1))
        {
            if (SpellEntry const* newInfo = sSpellStore.LookupEntry(aura->GetModifier()->m_amount))
            {
                spellInfo = newInfo;
                spellId = newInfo->Id;
            }
        }
    }
    // client provided targets
    SpellCastTargets targets;

    recvPacket >> targets.ReadForCaster(mover);

    targets.ReadAdditionalData(recvPacket, cast_flags);

    // Multi-Shot hack
    if (!targets.getUnitTarget() && spellId == 2643)
    {
        if (Unit* target = _player->GetMap()->GetUnit(_player->GetSelectionGuid()))
            targets.setUnitTarget(target);
    }

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

    Spell *spell = new Spell(mover, spellInfo, triggered, mover->GetObjectGuid(), triggeredBy);
    spell->m_cast_count = cast_count;                       // set count of casts
    spell->m_glyphIndex = glyphIndex;
    spell->prepare(&targets, triggeredByAura);
}

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

    //  Players on vehicles may cast many simple spells (like knock) from self

    Unit* mover = NULL;

    if (spellInfo->HasAttribute(SPELL_ATTR_EX6_CASTABLE_ON_VEHICLE) && _mover->IsCharmerOrOwnerPlayerOrPlayerItself())
        mover = _mover->GetCharmerOrOwnerPlayerOrPlayerItself();
    else
        mover = _mover;

    // casting own spells on some vehicles
    if (mover->IsVehicle() && mover->GetCharmerOrOwnerPlayerOrPlayerItself())
    {
        Player *plr = mover->GetCharmerOrOwnerPlayerOrPlayerItself();
        if (mover->GetVehicleKit()->GetSeatInfo(plr) &&
           ((mover->GetVehicleKit()->GetSeatInfo(plr)->m_flags & SEAT_FLAG_CAN_ATTACK) ||
            (mover->GetVehicleKit()->GetSeatInfo(plr)->m_flags & SEAT_FLAG_CAN_CAST) ))
            mover = plr;
    }

    bool triggered = false;
    SpellEntry const* triggeredBy = NULL;
    Aura const* triggeredByAura = mover->GetTriggeredByClientAura(spellId);
    if (triggeredByAura)
    {
        triggered = true;
        triggeredBy = triggeredByAura->GetSpellProto();
        cast_count = 0;
    }

    if (mover->GetTypeId()==TYPEID_PLAYER)
    {
        // not have spell in spellbook or spell passive and not casted by client
        if (((((Player*)mover)->GetUInt16Value(PLAYER_FIELD_BYTES2, 0) == 0 &&
            (!((Player*)mover)->HasActiveSpell(spellId) && !triggered))
            || IsPassiveSpell(spellInfo)) && spellId != 1843)
        {
            sLog.outError("WorldSession::HandleCastSpellOpcode: %s casts spell %u which he shouldn't have", mover->GetObjectGuid().GetString().c_str(), 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) && !triggered)
        || IsPassiveSpell(spellInfo))
        {
            sLog.outError("WorldSession::HandleCastSpellOpcode: %s try casts spell %u which he shouldn't have", mover->GetObjectGuid().GetString().c_str(), spellId);
            //cheater? kick? ban?
            recvPacket.rpos(recvPacket.wpos());                 // prevent spam at ignore packet
            return;
        }
    }

    Unit::AuraList swaps = mover->GetAurasByType(SPELL_AURA_OVERRIDE_ACTIONBAR_SPELLS);
    Unit::AuraList const& swaps2 = mover->GetAurasByType(SPELL_AURA_OVERRIDE_ACTIONBAR_SPELLS_2);
    if (!swaps2.empty())
        swaps.insert(swaps.end(), swaps2.begin(), swaps2.end());

    for (Unit::AuraList::const_iterator itr = swaps.begin(); itr != swaps.end(); ++itr)
    {
        if ((*itr)->isAffectedOnSpell(spellInfo))
        {
            if (SpellEntry const* newInfo = sSpellStore.LookupEntry((*itr)->GetModifier()->m_amount))
            {
                spellInfo = newInfo;
                spellId = newInfo->Id;
            }
            break;
        }
    }

    // client provided targets
    SpellCastTargets targets;

    recvPacket >> targets.ReadForCaster(mover);

    targets.ReadAdditionalData(recvPacket, cast_flags);

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

    Spell *spell = new Spell(mover, spellInfo, triggered, mover->GetObjectGuid(), triggeredBy);
    spell->m_cast_count = cast_count;                       // set count of casts
    spell->m_glyphIndex = glyphIndex;
    spell->prepare(&targets, triggeredByAura);
}

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

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

    DEBUG_LOG("WORLD: got cast spell packet, spellId - %u, cast_count: %u, cast_flags %u, data length = " SIZEFMTD,
              spellId, cast_count, cast_flags, 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;
    }

    Aura* triggeredByAura = mover->GetTriggeredByClientAura(spellId);

    if (mover->GetTypeId() == TYPEID_PLAYER)
    {
        // not have spell in spellbook or spell passive and not casted by client

        if ((!((Player*)mover)->HasActiveSpell(spellId) && !triggeredByAura) || IsPassiveSpell(spellInfo))
        {
            sLog.outError("World: %s casts spell %u which he shouldn't have", mover->GetGuidStr().c_str(), 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(spellInfo))
        {
            // cheater? kick? ban?
            recvPacket.rpos(recvPacket.wpos());             // prevent spam at ignore packet
            return;
        }
    }

    Unit::AuraList swaps = mover->GetAurasByType(SPELL_AURA_OVERRIDE_ACTIONBAR_SPELLS);
    Unit::AuraList const& swaps2 = mover->GetAurasByType(SPELL_AURA_OVERRIDE_ACTIONBAR_SPELLS_2);
    if (!swaps2.empty())
        swaps.insert(swaps.end(), swaps2.begin(), swaps2.end());

    for (Unit::AuraList::const_iterator itr = swaps.begin(); itr != swaps.end(); ++itr)
    {
        if ((*itr)->isAffectedOnSpell(spellInfo))
        {
            if (SpellEntry const* newInfo = sSpellStore.LookupEntry((*itr)->GetModifier()->m_amount))
            {
                spellInfo = newInfo;
                spellId = newInfo->Id;
            }
            break;
        }
    }

    // client provided targets
    SpellCastTargets targets;

    recvPacket >> targets.ReadForCaster(mover);

    targets.ReadAdditionalData(recvPacket, cast_flags);

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

    Spell* spell = new Spell(mover, spellInfo, triggeredByAura ? true : false, mover->GetObjectGuid(), triggeredByAura ? triggeredByAura->GetSpellProto() : NULL);
    spell->m_cast_count = cast_count;                       // set count of casts
    spell->m_glyphIndex = glyphIndex;
    spell->prepare(&targets, triggeredByAura);
}

void WorldSession::HandlePetCastSpellOpcode(WorldPacket& recvPacket)
{
    DETAIL_LOG("WORLD: CMSG_PET_CAST_SPELL");

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

    recvPacket >> guid >> cast_count >> spellid >> cast_flags;

    DEBUG_LOG("WORLD: CMSG_PET_CAST_SPELL, %s, cast_count: %u, spellid %u, cast_flags %u", guid.GetString().c_str(), cast_count, spellid, cast_flags);

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

    if (!pet || (guid != _player->GetPetGuid() && guid != _player->GetCharmGuid()))
    {
        sLog.outError("HandlePetCastSpellOpcode: %s isn't pet of %s .", guid.GetString().c_str(), GetPlayer()->GetGuidStr().c_str());
        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;

    Aura* triggeredByAura = pet->GetTriggeredByClientAura(spellid);

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

    SpellCastTargets targets;

    recvPacket >> targets.ReadForCaster(pet);

    targets.ReadAdditionalData(recvPacket, cast_flags);

    pet->clearUnitState(UNIT_STAT_MOVING);

    Spell* spell = new Spell(pet, spellInfo, triggeredByAura ? true : false, pet->GetObjectGuid(), triggeredByAura ? triggeredByAura->GetSpellProto() : NULL);
    spell->m_cast_count = cast_count;                       // probably pending spell cast
    spell->m_targets = targets;

    SpellCastResult result = triggeredByAura ? SPELL_CAST_OK : spell->CheckPetCast(NULL);
    if (result == SPELL_CAST_OK)
    {
        pet->AddCreatureSpellCooldown(spellid);
        if (pet->IsPet())
        {
            // 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*)pet)->getPetType() == SUMMON_PET && (urand(0, 100) < 10))
                pet->SendPetTalk((uint32)PET_TALK_SPECIAL_SPELL);
            else
                pet->SendPetAIReaction();
        }

        spell->prepare(&(spell->m_targets), triggeredByAura);
    }
    else
    {
        Unit* owner = pet->GetCharmerOrOwner();
        if (owner && owner->GetTypeId() == TYPEID_PLAYER && !triggeredByAura)
            Spell::SendCastResult((Player*)owner, spellInfo, 0, result, true);

        if (!pet->HasSpellCooldown(spellid) && !triggeredByAura)
            GetPlayer()->SendClearCooldown(spellid, pet);

        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 = GetPlayer()->GetMover();
    if (_mover != GetPlayer() && _mover->GetTypeId()==TYPEID_PLAYER)
    {
        recvPacket.rpos(recvPacket.wpos());                 // prevent spam at ignore packet
        return;
    }

    DEBUG_LOG("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;
    }

    //  Players on vehicles may cast many simple spells (like knock) from self

    Unit* mover = NULL;

    if (spellInfo->AttributesEx6 & SPELL_ATTR_EX6_CASTABLE_ON_VEHICLE && _mover->IsCharmerOrOwnerPlayerOrPlayerItself())
        mover = _mover->GetCharmerOrOwnerPlayerOrPlayerItself();
    else
        mover = _mover;

    // casting own spells on some vehicles
    if (mover->GetObjectGuid().IsVehicle() && mover->GetCharmerOrOwnerPlayerOrPlayerItself())
    {
        Player *plr = mover->GetCharmerOrOwnerPlayerOrPlayerItself();
        if (mover->GetVehicleKit()->GetSeatInfo(plr) &&
           (mover->GetVehicleKit()->GetSeatInfo(plr)->m_flags & SEAT_FLAG_CAN_ATTACK ||
            mover->GetVehicleKit()->GetSeatInfo(plr)->m_flags & SEAT_FLAG_CAN_CAST ))
            mover = plr;
    }

    bool triggered = false;
    SpellEntry const* triggeredBy = NULL;
    Aura* triggeredByAura = mover->GetTriggeredByClientAura(spellId);
    if (triggeredByAura)
    {
        triggered = true;
        triggeredBy = triggeredByAura->GetSpellProto();
        cast_count = 0;
    }

    if (mover->GetTypeId()==TYPEID_PLAYER)
    {
        // not have spell in spellbook or spell passive and not casted by client
        if (((((Player*)mover)->GetUInt16Value(PLAYER_FIELD_BYTES2, 0) == 0 &&
            (!((Player*)mover)->HasActiveSpell(spellId) && !triggered))
            || IsPassiveSpell(spellInfo)) && spellId != 1843)
        {
            sLog.outError("WorldSession::HandleCastSpellOpcode: %s casts spell %u which he shouldn't have", mover->GetObjectGuid().GetString().c_str(), 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) && !triggered)
        || IsPassiveSpell(spellInfo))
        {
            sLog.outError("WorldSession::HandleCastSpellOpcode: %s try casts spell %u which he shouldn't have", mover->GetObjectGuid().GetString().c_str(), spellId);
            //cheater? kick? ban?
            recvPacket.rpos(recvPacket.wpos());                 // prevent spam at ignore packet
            return;
        }
    }

    // client provided targets
    SpellCastTargets targets;

    recvPacket >> targets.ReadForCaster(mover);

    // some spell cast packet including more data (for projectiles?)
    if (unk_flags & 0x02)
        targets.ReadAdditionalData(recvPacket);

    // auto-selection buff level base at target level (in spellInfo)
    if (Unit* target = targets.getUnitTarget())
    {
        // 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 (SpellEntry const *actualSpellInfo = sSpellMgr.SelectAuraRankForLevel(spellInfo, target->getLevel()))
            spellInfo = actualSpellInfo;
    }
//.........这里部分代码省略.........