C++ ReadMovementInfo函数代码示例

void WorldSession::HandleChangeSeatsOnControlledVehicle(WorldPacket &recvData)
{
    TC_LOG_DEBUG(LOG_FILTER_NETWORKIO, "WORLD: Recvd CMSG_CHANGE_SEATS_ON_CONTROLLED_VEHICLE");

    Unit* vehicle_base = GetPlayer()->GetVehicleBase();
    if (!vehicle_base)
    {
        recvData.rfinish();                                // prevent warnings spam
        return;
    }

    VehicleSeatEntry const* seat = GetPlayer()->GetVehicle()->GetSeatForPassenger(GetPlayer());
    if (!seat->CanSwitchFromSeat())
    {
        recvData.rfinish();                                // prevent warnings spam
        TC_LOG_ERROR(LOG_FILTER_NETWORKIO, "HandleChangeSeatsOnControlledVehicle, Opcode: %u, Player %u tried to switch seats but current seatflags %u don't permit that.",
            recvData.GetOpcode(), GetPlayer()->GetGUIDLow(), seat->m_flags);
        return;
    }

    switch (recvData.GetOpcode())
    {
        case CMSG_REQUEST_VEHICLE_PREV_SEAT:
            GetPlayer()->ChangeSeat(-1, false);
            break;
        case CMSG_REQUEST_VEHICLE_NEXT_SEAT:
            GetPlayer()->ChangeSeat(-1, true);
            break;
        case CMSG_CHANGE_SEATS_ON_CONTROLLED_VEHICLE:
        {
            uint64 guid;        // current vehicle guid
            recvData.readPackGUID(guid);

            MovementInfo movementInfo;
            ReadMovementInfo(recvData, &movementInfo);
            vehicle_base->m_movementInfo = movementInfo;

            uint64 accessory;        //  accessory guid
            recvData.readPackGUID(accessory);

            int8 seatId;
            recvData >> seatId;

            if (vehicle_base->GetGUID() != guid)
                return;

            if (!accessory)
                GetPlayer()->ChangeSeat(-1, seatId > 0); // prev/next
            else if (Unit* vehUnit = Unit::GetUnit(*GetPlayer(), accessory))
            {
                if (Vehicle* vehicle = vehUnit->GetVehicleKit())
                    if (vehicle->HasEmptySeat(seatId))
                        vehUnit->HandleSpellClick(GetPlayer(), seatId);
            }
            break;
        }
        case CMSG_REQUEST_VEHICLE_SWITCH_SEAT:
        {
            uint64 guid;        // current vehicle guid
            recvData.readPackGUID(guid);

            int8 seatId;
            recvData >> seatId;

            if (vehicle_base->GetGUID() == guid)
                GetPlayer()->ChangeSeat(seatId);
            else if (Unit* vehUnit = Unit::GetUnit(*GetPlayer(), guid))
                if (Vehicle* vehicle = vehUnit->GetVehicleKit())
                    if (vehicle->HasEmptySeat(seatId))
                        vehUnit->HandleSpellClick(GetPlayer(), seatId);
            break;
        }
        default:
            break;
    }
}

void WorldSession::HandleMoveSplineDoneOpcode(WorldPacket& recv_data)
{
    sLog.outDebug("WORLD: Received CMSG_MOVE_SPLINE_DONE");

    uint64 guid;                                            // used only for proper packet read
    if (!recv_data.readPackGUID(guid))
        return;

    // movement anticheat code
    const Unit *mover = _player->m_mover;
    const Player *plMover = mover->GetTypeId() == TYPEID_PLAYER ? (Player*)mover : NULL;
    if (!plMover)
        return;
    // end movement anticheat

    MovementInfo movementInfo;                              // used only for proper packet read
    ReadMovementInfo(recv_data, &movementInfo);

    recv_data.read_skip<uint32>();                          // unk

    // in taxi flight packet received in 2 case:
    // 1) end taxi path in far (multi-node) flight
    // 2) switch from one map to other in case multim-map taxi path
    // we need process only (1)

    uint32 curDest = GetPlayer()->m_taxi.GetTaxiDestination();
    if (!curDest)
    {
        // movement anticheat code
        GetPlayer()->SetPosition(movementInfo.x, movementInfo.y, movementInfo.z, movementInfo.o);
        GetPlayer()->m_movementInfo = movementInfo;
        GetPlayer()->SetUnitMovementFlags(movementInfo.flags);

        // calc time deltas
        int32 cClientTimeDelta = 0;
        if (GetPlayer()->m_anti_LastClientTime != 0)
        {
            cClientTimeDelta = movementInfo.time - GetPlayer()->m_anti_LastClientTime;
            GetPlayer()->m_anti_DeltaClientTime += cClientTimeDelta;
            GetPlayer()->m_anti_LastClientTime = movementInfo.time;
        }
        else
            GetPlayer()->m_anti_LastClientTime = movementInfo.time;

        const uint64 cServerTime = getMSTime();
        uint32 cServerTimeDelta = 0;
        if (GetPlayer()->m_anti_LastServerTime != 0)
        {
            cServerTimeDelta = cServerTime - GetPlayer()->m_anti_LastServerTime;
            GetPlayer()->m_anti_DeltaServerTime += cServerTimeDelta;
            GetPlayer()->m_anti_LastServerTime = cServerTime;
        }
        else
            GetPlayer()->m_anti_LastServerTime = cServerTime;
        // end movement anticheat
        return;
    }

    // movment anticheat
    const uint32 curloc = 
    objmgr.GetNearestTaxiNode(movementInfo.x,movementInfo.y,movementInfo.z,GetPlayer()->GetMapId(),GetPlayer()->GetTeam(), curDest);
    // end movement anticheat

    // sLog.outBasic("AC2-%s > | xyzo: %f,%f,%fo(%f) flags[%X] | curloc: %d | destloc: %d ",
    // GetPlayer()->GetName(), movementInfo.x, movementInfo.y, movementInfo.z, movementInfo.o,
    // movementInfo.flags, curloc, curDest);
    TaxiNodesEntry const* curDestNode = sTaxiNodesStore.LookupEntry(curDest);
    if (curDestNode && curDestNode->map_id == GetPlayer()->GetMapId())
        while (GetPlayer()->GetMotionMaster()->GetCurrentMovementGeneratorType() == FLIGHT_MOTION_TYPE)
            GetPlayer()->GetMotionMaster()->MovementExpired(false);

    // movement anticheat code
    GetPlayer()->SetPosition(movementInfo.x, movementInfo.y, movementInfo.z, movementInfo.o);
    GetPlayer()->m_movementInfo = movementInfo;
    GetPlayer()->SetUnitMovementFlags(movementInfo.flags);
    // calc time deltas
    int32 cClientTimeDelta = 0;
    if (GetPlayer()->m_anti_LastClientTime != 0)
    {
        cClientTimeDelta = movementInfo.time - GetPlayer()->m_anti_LastClientTime;
        GetPlayer()->m_anti_DeltaClientTime += cClientTimeDelta;
        GetPlayer()->m_anti_LastClientTime = movementInfo.time;
    }
    else
        GetPlayer()->m_anti_LastClientTime = movementInfo.time;

    const uint64 cServerTime = getMSTime();
    uint32 cServerTimeDelta = 0;
    if (GetPlayer()->m_anti_LastServerTime != 0)
    {
        cServerTimeDelta = cServerTime - GetPlayer()->m_anti_LastServerTime;
        GetPlayer()->m_anti_DeltaServerTime += cServerTimeDelta;
        GetPlayer()->m_anti_LastServerTime = cServerTime;
    }
    else
        GetPlayer()->m_anti_LastServerTime = cServerTime;
    // end movement anticheat

    // far teleport case
    if (curDestNode && curDestNode->map_id != GetPlayer()->GetMapId())
//.........这里部分代码省略.........

void WorldSession::HandleMovementOpcodes( WorldPacket & recv_data )
{
    uint32 opcode = recv_data.GetOpcode();
    sLog.outDebug("WORLD: Recvd %s (%u, 0x%X) opcode", LookupOpcodeName(opcode), opcode, opcode);

    if(GetPlayer()->GetDontMove())
        return;

    /* extract packet */
    MovementInfo movementInfo;
    ReadMovementInfo(recv_data, &movementInfo);
    /*----------------*/

    if(recv_data.size() != recv_data.rpos())
    {
        sLog.outError("MovementHandler: player %s (guid %d, account %u) sent a packet (opcode %u) that is %u bytes larger than it should be. Kicked as cheater.", _player->GetName(), _player->GetGUIDLow(), _player->GetSession()->GetAccountId(), recv_data.GetOpcode(), recv_data.size() - recv_data.rpos());
        KickPlayer();
        return;
    }

    if (!MaNGOS::IsValidMapCoord(movementInfo.x, movementInfo.y, movementInfo.z, movementInfo.o))
        return;

    /* handle special cases */
    if (movementInfo.flags & MOVEMENTFLAG_ONTRANSPORT)
    {
        // transports size limited
        // (also received at zeppelin leave by some reason with t_* as absolute in continent coordinates, can be safely skipped)
        if( movementInfo.t_x > 50 || movementInfo.t_y > 50 || movementInfo.t_z > 50 )
            return;

        if( !MaNGOS::IsValidMapCoord(movementInfo.x+movementInfo.t_x, movementInfo.y+movementInfo.t_y,
            movementInfo.z+movementInfo.t_z, movementInfo.o+movementInfo.t_o) )
            return;

        // if we boarded a transport, add us to it
        if (!GetPlayer()->m_transport)
        {
            // elevators also cause the client to send MOVEMENTFLAG_ONTRANSPORT - just unmount if the guid can be found in the transport list
            for (MapManager::TransportSet::iterator iter = MapManager::Instance().m_Transports.begin(); iter != MapManager::Instance().m_Transports.end(); ++iter)
            {
                if ((*iter)->GetGUID() == movementInfo.t_guid)
                {
                    GetPlayer()->m_transport = (*iter);
                    (*iter)->AddPassenger(GetPlayer());
                    break;
                }
            }
        }
    }
    else if (GetPlayer()->m_transport)                      // if we were on a transport, leave
    {
        GetPlayer()->m_transport->RemovePassenger(GetPlayer());
        GetPlayer()->m_transport = NULL;
        movementInfo.t_x = 0.0f;
        movementInfo.t_y = 0.0f;
        movementInfo.t_z = 0.0f;
        movementInfo.t_o = 0.0f;
        movementInfo.t_time = 0;
        movementInfo.t_seat = -1;
    }

    // fall damage generation (ignore in flight case that can be triggered also at lags in moment teleportation to another map).
    if (opcode == MSG_MOVE_FALL_LAND && !GetPlayer()->isInFlight())
    {
        // calculate total z distance of the fall
        float z_diff = GetPlayer()->m_lastFallZ - movementInfo.z;
        sLog.outDebug("zDiff = %f", z_diff);
        Player *target = GetPlayer();

        //Players with low fall distance, Feather Fall or physical immunity (charges used) are ignored
        // 14.57 can be calculated by resolving damageperc formular below to 0
        if (z_diff >= 14.57f && !target->isDead() && !target->isGameMaster() &&
            !target->HasAuraType(SPELL_AURA_HOVER) && !target->HasAuraType(SPELL_AURA_FEATHER_FALL) &&
            !target->HasAuraType(SPELL_AURA_FLY) && !target->IsImmunedToDamage(SPELL_SCHOOL_MASK_NORMAL) )
        {
            //Safe fall, fall height reduction
            int32 safe_fall = target->GetTotalAuraModifier(SPELL_AURA_SAFE_FALL);

            float damageperc = 0.018f*(z_diff-safe_fall)-0.2426f;

            if(damageperc >0 )
            {
                uint32 damage = (uint32)(damageperc * target->GetMaxHealth()*sWorld.getRate(RATE_DAMAGE_FALL));

                float height = movementInfo.z;
                target->UpdateGroundPositionZ(movementInfo.x,movementInfo.y,height);

                if (damage > 0)
                {
                    //Prevent fall damage from being more than the player maximum health
                    if (damage > target->GetMaxHealth())
                        damage = target->GetMaxHealth();

                    // Gust of Wind
                    if (target->GetDummyAura(43621))
                        damage = target->GetMaxHealth()/2;

                    target->EnvironmentalDamage(target->GetGUID(), DAMAGE_FALL, damage);

//.........这里部分代码省略.........

void WorldSession::HandleMovementOpcodes( WorldPacket & recv_data )
{
    uint32 opcode = recv_data.GetOpcode();
    sLog.outDebug("WORLD: Recvd %s (%u, 0x%X) opcode", LookupOpcodeName(opcode), opcode, opcode);

    Unit *mover = _player->m_mover;
    Player *plMover = mover->GetTypeId()==TYPEID_PLAYER ? (Player*)mover : NULL;

    // ignore, waiting processing in WorldSession::HandleMoveWorldportAckOpcode and WorldSession::HandleMoveTeleportAck
    if(plMover && plMover->IsBeingTeleported()){
        // movement anticheat
        plMover->m_anti_JustTeleported = 1;
        // end movement anticheat
        return;
    }

    /* extract packet */
    MovementInfo movementInfo;
    ReadMovementInfo(recv_data, &movementInfo);
    /*----------------*/

    if(recv_data.size() != recv_data.rpos())
    {
        sLog.outError("MovementHandler: player %s (guid %d, account %u) sent a packet (opcode %u) that is " SIZEFMTD " bytes larger than it should be. Kicked as cheater.", _player->GetName(), _player->GetGUIDLow(), _player->GetSession()->GetAccountId(), recv_data.GetOpcode(), recv_data.size() - recv_data.rpos());
        KickPlayer();
        return;
    }

    if (!MaNGOS::IsValidMapCoord(movementInfo.x, movementInfo.y, movementInfo.z, movementInfo.o))
        return;

    /* handle special cases */
    if (movementInfo.HasMovementFlag(MOVEMENTFLAG_ONTRANSPORT))
    {
        // transports size limited
        // (also received at zeppelin leave by some reason with t_* as absolute in continent coordinates, can be safely skipped)
        if( movementInfo.t_x > 60 || movementInfo.t_y > 60 || movementInfo.t_x < -60 ||  movementInfo.t_y < -60 )
            return;

        if( !MaNGOS::IsValidMapCoord(movementInfo.x+movementInfo.t_x, movementInfo.y + movementInfo.t_y,
            movementInfo.z + movementInfo.t_z, movementInfo.o + movementInfo.t_o) )
            return;

        if (plMover && plMover->m_anti_TransportGUID == 0 && (movementInfo.t_guid !=0))
        {
            // if we boarded a transport, add us to it
            if (plMover && !plMover->m_transport)
            {
                // elevators also cause the client to send MOVEMENTFLAG_ONTRANSPORT - just unmount if the guid can be found in the transport list
                for (MapManager::TransportSet::const_iterator iter = MapManager::Instance().m_Transports.begin(); iter != MapManager::Instance().m_Transports.end(); ++iter)
                {
                    if ((*iter)->GetGUID() == movementInfo.t_guid)
                    {
                        plMover->m_transport = (*iter);
                        (*iter)->AddPassenger(plMover);
                        break;
                    }
                }
            }
            //movement anticheat;
            //Correct finding GO guid in DB (thanks to GriffonHeart)
            GameObject *obj = HashMapHolder<GameObject>::Find(movementInfo.t_guid);
            if(obj)
                plMover->m_anti_TransportGUID = obj->GetDBTableGUIDLow();
            else
                plMover->m_anti_TransportGUID = GUID_LOPART(movementInfo.t_guid);
            // end movement anticheat
        }
    } else if (plMover && plMover->m_anti_TransportGUID != 0){
        if (plMover && plMover->m_transport)               // if we were on a transport, leave
        {
            plMover->m_transport->RemovePassenger(plMover);
            plMover->m_transport = NULL;
        }
        movementInfo.t_x = 0.0f;
        movementInfo.t_y = 0.0f;
        movementInfo.t_z = 0.0f;
        movementInfo.t_o = 0.0f;
        movementInfo.t_time = 0;
        movementInfo.t_seat = -1;
        plMover->m_anti_TransportGUID = 0;
    }

    // fall damage generation (ignore in flight case that can be triggered also at lags in moment teleportation to another map).
    if (opcode == MSG_MOVE_FALL_LAND && plMover && !plMover->isInFlight())
    {
        //movement anticheat
        plMover->m_anti_JustJumped = 0;
        plMover->m_anti_JumpBaseZ = 0;
        //end movement anticheat
        plMover->HandleFall(movementInfo);
    }


    if (plMover && (movementInfo.HasMovementFlag(MOVEMENTFLAG_SWIMMING) != plMover->IsInWater()))
    {
        // now client not include swimming flag in case jumping under water
        plMover->SetInWater( !plMover->IsInWater() || plMover->GetBaseMap()->IsUnderWater(movementInfo.x, movementInfo.y, movementInfo.z) );
    }

//.........这里部分代码省略.........

void WorldSession::HandleMovementOpcodes(WorldPacket & recvData)
{
    uint16 opcode = recvData.GetOpcode();

    Unit* mover = _player->m_mover;

    ASSERT(mover != NULL);                      // there must always be a mover

	Player* plrMover = mover->GetTypeId() == TYPEID_PLAYER ? (Player*)mover : NULL;
	Vehicle* vehMover = mover->GetVehicleKit();
	if (vehMover)
	     if (mover->HasFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_PLAYER_CONTROLLED))
		 if (Unit* charmer = mover->GetCharmer())
		 if (charmer->GetTypeId() == TYPEID_PLAYER)
		 plrMover = (Player*)charmer;

    // ignore, waiting processing in WorldSession::HandleMoveWorldportAckOpcode and WorldSession::HandleMoveTeleportAck
    if (plrMover && plrMover->IsBeingTeleported())
    {
        recvData.rfinish();                     // prevent warnings spam
        return;
    }

    /* extract packet */
    ObjectGuid guid;

    recvData >> guid.ReadAsPacked();

    MovementInfo movementInfo;
    movementInfo.guid = guid;
    ReadMovementInfo(recvData, &movementInfo);

    recvData.rfinish();                         // prevent warnings spam

    // prevent tampered movement data
    if (guid != mover->GetGUID())
        return;

    if (!movementInfo.pos.IsPositionValid())
    {
        recvData.rfinish();                     // prevent warnings spam
        return;
    }

    /* handle special cases */
    if (movementInfo.HasMovementFlag(MOVEMENTFLAG_ONTRANSPORT))
    {
        // transports size limited
        // (also received at zeppelin leave by some reason with t_* as absolute in continent coordinates, can be safely skipped)
        if (movementInfo.transport.pos.GetPositionX() > 50 || movementInfo.transport.pos.GetPositionY() > 50 || movementInfo.transport.pos.GetPositionZ() > 50)
        {
            recvData.rfinish();                 // prevent warnings spam
            return;
        }

        if (!Trinity::IsValidMapCoord(movementInfo.pos.GetPositionX() + movementInfo.transport.pos.GetPositionX(), movementInfo.pos.GetPositionY() + movementInfo.transport.pos.GetPositionY(),
            movementInfo.pos.GetPositionZ() + movementInfo.transport.pos.GetPositionZ(), movementInfo.pos.GetOrientation() + movementInfo.transport.pos.GetOrientation()))
        {
            recvData.rfinish();                 // prevent warnings spam
            return;
        }

        // if we boarded a transport, add us to it
		if (plrMover && !plrMover->m_transport && !plrMover->m_temp_transport)
        {
            if (!plrMover->GetTransport())
            {
                if (Transport* transport = plrMover->GetMap()->GetTransport(movementInfo.transport.guid))
                    transport->AddPassenger(plrMover);
            }
            else if (plrMover->GetTransport()->GetGUID() != movementInfo.transport.guid)
            {
                plrMover->GetTransport()->RemovePassenger(plrMover);
                if (Transport* transport = plrMover->GetMap()->GetTransport(movementInfo.transport.guid))
                    transport->AddPassenger(plrMover);
                else
                    movementInfo.transport.Reset();
            }
        }

		if (!plrMover->m_transport)
			 if (Map *tempMap = mover->GetMap())
			 if (GameObject *tempTransport = tempMap->GetGameObject(movementInfo.transport.guid))
			 if (tempTransport->IsTransport())
			 plrMover->m_temp_transport = tempTransport;
		     if ((!plrMover && !mover->GetTransport() && !mover->GetVehicle()) || (plrMover && !plrMover->m_vehicle && !plrMover->m_transport && !plrMover->m_temp_transport)) // Not sure if the first part is needed. Just added it for verbosity.

        {
            GameObject* go = mover->GetMap()->GetGameObject(movementInfo.transport.guid);
            if (!go || go->GetGoType() != GAMEOBJECT_TYPE_TRANSPORT)
                movementInfo.RemoveMovementFlag(MOVEMENTFLAG_ONTRANSPORT);
        }
    }
	else if (plrMover && (plrMover->m_transport || plrMover->m_temp_transport)) // if we were on a transport, leave

    {
		if (plrMover->m_transport)
			 {
			plrMover->m_transport->RemovePassenger(plrMover);
			plrMover->m_transport = NULL;
//.........这里部分代码省略.........

void WorldSession::HandleChangeSeatsOnControlledVehicle(WorldPacket &recv_data)
{
    sLog->outDebug("WORLD: Recvd CMSG_CHANGE_SEATS_ON_CONTROLLED_VEHICLE");
    recv_data.hexlike();

    Unit* vehicle_base = GetPlayer()->GetVehicleBase();
    if (!vehicle_base)
        return;

    VehicleSeatEntry const* seat = GetPlayer()->GetVehicle()->GetSeatForPassenger(GetPlayer());
    if (!seat->CanSwitchFromSeat())
    {
        sLog->outError("HandleChangeSeatsOnControlledVehicle, Opcode: %u, Player %u tried to switch seats but current seatflags %u don't permit that.",
            recv_data.GetOpcode(), GetPlayer()->GetGUIDLow(), seat->m_flags);
        return;
    }

    switch (recv_data.GetOpcode())
    {
        case CMSG_REQUEST_VEHICLE_PREV_SEAT:
            GetPlayer()->ChangeSeat(-1, false);
            break;
        case CMSG_REQUEST_VEHICLE_NEXT_SEAT:
            GetPlayer()->ChangeSeat(-1, true);
            break;
        case CMSG_CHANGE_SEATS_ON_CONTROLLED_VEHICLE:
            {
                uint64 guid;        // current vehicle guid
                recv_data.readPackGUID(guid);

                ReadMovementInfo(recv_data, &vehicle_base->m_movementInfo);

                uint64 accessory;        //  accessory guid
                recv_data.readPackGUID(accessory);

                int8 seatId;
                recv_data >> seatId;

                if (vehicle_base->GetGUID() != guid)
                    return;

                if (!accessory)
                    GetPlayer()->ChangeSeat(-1, seatId > 0); // prev/next
                else if (Unit *vehUnit = Unit::GetUnit(*GetPlayer(), accessory))
                {
                    if (Vehicle *vehicle = vehUnit->GetVehicleKit())
                        if (vehicle->HasEmptySeat(seatId))
                            GetPlayer()->EnterVehicle(vehicle, seatId);
                }
            }
            break;
        case CMSG_REQUEST_VEHICLE_SWITCH_SEAT:
            {
                uint64 guid;        // current vehicle guid
                recv_data.readPackGUID(guid);

                int8 seatId;
                recv_data >> seatId;

                if (vehicle_base->GetGUID() == guid)
                    GetPlayer()->ChangeSeat(seatId);
                else if (Unit *vehUnit = Unit::GetUnit(*GetPlayer(), guid))
                    if (Vehicle *vehicle = vehUnit->GetVehicleKit())
                        if (vehicle->HasEmptySeat(seatId))
                            GetPlayer()->EnterVehicle(vehicle, seatId);
            }
            break;
        default:
            break;
    }
}

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?
        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);
}

void WorldSession::HandleMovementOpcodes(WorldPacket& recvData)
{
    uint16 opcode = recvData.GetOpcode();

    Unit* mover = _player->m_mover;

    ASSERT(mover != NULL);                      // there must always be a mover

    Player* plrMover = mover->ToPlayer();

    // ignore, waiting processing in WorldSession::HandleMoveWorldportAckOpcode and WorldSession::HandleMoveTeleportAck
    if (plrMover && plrMover->IsBeingTeleported())
    {
        recvData.rfinish();                     // prevent warnings spam
        return;
    }

    /* extract packet */
    uint64 guid;

    recvData.readPackGUID(guid);

    MovementInfo movementInfo;
    movementInfo.guid = guid;
    ReadMovementInfo(recvData, &movementInfo);

    recvData.rfinish();                         // prevent warnings spam

    // prevent tampered movement data
    if (guid != mover->GetGUID())
        return;

    if (!movementInfo.pos.IsPositionValid())
    {
        recvData.rfinish();                     // prevent warnings spam
        return;
    }
	
    // Tempfix for Drink Exploit (Thx jetwanx) 
    if (mover->IsSitState() && movementInfo.GetMovementFlags() & (MOVEMENTFLAG_MASK_MOVING | MOVEMENTFLAG_MASK_TURNING))
        mover->SetStandState(UNIT_STAND_STATE_STAND);


    /* handle special cases */
    if (movementInfo.flags & MOVEMENTFLAG_ONTRANSPORT)
    {
        // transports size limited
        // (also received at zeppelin leave by some reason with t_* as absolute in continent coordinates, can be safely skipped)
        if (movementInfo.transport.pos.GetPositionX() > 50 || movementInfo.transport.pos.GetPositionY() > 50 || movementInfo.transport.pos.GetPositionZ() > 50)
        {
            recvData.rfinish();                 // prevent warnings spam
            return;
        }

        if (!Trinity::IsValidMapCoord(movementInfo.pos.GetPositionX() + movementInfo.transport.pos.GetPositionX(), movementInfo.pos.GetPositionY() + movementInfo.transport.pos.GetPositionY(),
            movementInfo.pos.GetPositionZ() + movementInfo.transport.pos.GetPositionZ(), movementInfo.pos.GetOrientation() + movementInfo.transport.pos.GetOrientation()))
        {
            recvData.rfinish();                 // prevent warnings spam
            return;
        }

        // if we boarded a transport, add us to it
        if (plrMover)
        {
            if (!plrMover->GetTransport())
            {
                // elevators also cause the client to send MOVEMENTFLAG_ONTRANSPORT - just dismount if the guid can be found in the transport list
                for (MapManager::TransportSet::const_iterator iter = sMapMgr->m_Transports.begin(); iter != sMapMgr->m_Transports.end(); ++iter)
                {
                    if ((*iter)->GetGUID() == movementInfo.transport.guid)
                    {
                        plrMover->m_transport = *iter;
                        (*iter)->AddPassenger(plrMover);
                        break;
                    }
                }
            }
            else if (plrMover->GetTransport()->GetGUID() != movementInfo.transport.guid)
            {
                bool foundNewTransport = false;
                plrMover->m_transport->RemovePassenger(plrMover);
                for (MapManager::TransportSet::const_iterator iter = sMapMgr->m_Transports.begin(); iter != sMapMgr->m_Transports.end(); ++iter)
                {
                    if ((*iter)->GetGUID() == movementInfo.transport.guid)
                    {
                        foundNewTransport = true;
                        plrMover->m_transport = *iter;
                        (*iter)->AddPassenger(plrMover);
                        break;
                    }
                }

                if (!foundNewTransport)
                {
                    plrMover->m_transport = NULL;
                    movementInfo.transport.Reset();
                }
            }
        }

//.........这里部分代码省略.........

void WorldSession::HandleMovementOpcodes( WorldPacket & recv_data )
{
    uint16 opcode = recv_data.GetOpcode();
    //sLog.outDebug("WORLD: Recvd %s (%u, 0x%X) opcode", LookupOpcodeName(opcode), opcode, opcode);

    Unit *mover = _player->m_mover;

    assert(mover != NULL);                                  // there must always be a mover

    Player *plMover = mover->GetTypeId() == TYPEID_PLAYER ? (Player*)mover : NULL;

    // ignore, waiting processing in WorldSession::HandleMoveWorldportAckOpcode and WorldSession::HandleMoveTeleportAck
    if (plMover && plMover->IsBeingTeleported())
    {
        recv_data.rpos(recv_data.wpos());                   // prevent warnings spam
        return;
    }

    /* extract packet */
    MovementInfo movementInfo;
    ReadMovementInfo(recv_data, &movementInfo);
    /*----------------*/

    if (recv_data.size() != recv_data.rpos())
    {
        sLog.outError("MovementHandler: player %s (guid %d, account %u) sent a packet (opcode %u) that is " SIZEFMTD " bytes larger than it should be. Kicked as cheater.", _player->GetName(), _player->GetGUIDLow(), _player->GetSession()->GetAccountId(), recv_data.GetOpcode(), recv_data.size() - recv_data.rpos());
        KickPlayer();
        recv_data.rpos(recv_data.wpos());                   // prevent warnings spam
        return;
    }

    if (!Trinity::IsValidMapCoord(movementInfo.x, movementInfo.y, movementInfo.z, movementInfo.o))
    {
        recv_data.rpos(recv_data.wpos());                   // prevent warnings spam
        return;
    }

    /* handle special cases */
    if (movementInfo.flags & MOVEMENTFLAG_ONTRANSPORT)
    {
        // transports size limited
        // (also received at zeppelin leave by some reason with t_* as absolute in continent coordinates, can be safely skipped)
        if (movementInfo.t_x > 50 || movementInfo.t_y > 50 || movementInfo.t_z > 50)
        {
            recv_data.rpos(recv_data.wpos());                   // prevent warnings spam
            return;
        }

        if (!Trinity::IsValidMapCoord(movementInfo.x+movementInfo.t_x, movementInfo.y + movementInfo.t_y,
            movementInfo.z + movementInfo.t_z, movementInfo.o + movementInfo.t_o))
        {
            recv_data.rpos(recv_data.wpos());                   // prevent warnings spam
            return;
        }

        // if we boarded a transport, add us to it
        if (plMover && !plMover->GetTransport())
        {
            // elevators also cause the client to send MOVEMENTFLAG_ONTRANSPORT - just unmount if the guid can be found in the transport list
            for (MapManager::TransportSet::const_iterator iter = MapManager::Instance().m_Transports.begin(); iter != MapManager::Instance().m_Transports.end(); ++iter)
            {
                if ((*iter)->GetGUID() == movementInfo.t_guid)
                {
                    plMover->m_transport = (*iter);
                    (*iter)->AddPassenger(plMover);
                    break;
                }
            }
        }

        if (!mover->GetTransport() && !mover->GetVehicle())
            movementInfo.flags &= ~MOVEMENTFLAG_ONTRANSPORT;
    }
    else if (plMover && plMover->GetTransport())                // if we were on a transport, leave
    {
        plMover->m_transport->RemovePassenger(plMover);
        plMover->m_transport = NULL;
        movementInfo.t_x = 0.0f;
        movementInfo.t_y = 0.0f;
        movementInfo.t_z = 0.0f;
        movementInfo.t_o = 0.0f;
        movementInfo.t_time = 0;
        movementInfo.t_seat = -1;
    }

    // fall damage generation (ignore in flight case that can be triggered also at lags in moment teleportation to another map).
    if (opcode == MSG_MOVE_FALL_LAND && plMover && !plMover->isInFlight())
        plMover->HandleFall(movementInfo);

    if (plMover && ((movementInfo.flags & MOVEMENTFLAG_SWIMMING) != 0) != plMover->IsInWater())
    {
        // now client not include swimming flag in case jumping under water
        plMover->SetInWater(!plMover->IsInWater() || plMover->GetBaseMap()->IsUnderWater(movementInfo.x, movementInfo.y, movementInfo.z));
    }

    /*----------------------*/

    /* process position-change */
    recv_data.put<uint32>(6, getMSTime());                  // fix time, offset flags(4) + unk(2)
    WorldPacket data(recv_data.GetOpcode(), (mover->GetPackGUID().size()+recv_data.size()));
//.........这里部分代码省略.........

void WorldSession::HandleForceSpeedChangeAck(WorldPacket &recvData)
{
    uint32 opcode = recvData.GetOpcode();
#if defined(ENABLE_EXTRAS) && defined(ENABLE_EXTRA_LOGS)
    sLog->outDebug(LOG_FILTER_NETWORKIO, "WORLD: Recvd %s (%u, 0x%X) opcode", LookupOpcodeName(opcode), opcode, opcode);
#endif

    /* extract packet */
    uint64 guid;
    uint32 unk1;
    float  newspeed;

    recvData.readPackGUID(guid);

    // pussywizard: special check, only player mover allowed here
    if (guid != _player->m_mover->GetGUID() || guid != _player->GetGUID())
    {
        recvData.rfinish(); // prevent warnings spam
        return;
    }

    // continue parse packet

    recvData >> unk1;                                      // counter or moveEvent

    MovementInfo movementInfo;
    movementInfo.guid = guid;
    ReadMovementInfo(recvData, &movementInfo);

    recvData >> newspeed;
    /*----------------*/

    // client ACK send one packet for mounted/run case and need skip all except last from its
    // in other cases anti-cheat check can be fail in false case
    UnitMoveType move_type;
    UnitMoveType force_move_type;

    static char const* move_type_name[MAX_MOVE_TYPE] = {  "Walk", "Run", "RunBack", "Swim", "SwimBack", "TurnRate", "Flight", "FlightBack", "PitchRate" };

    switch (opcode)
    {
        case CMSG_FORCE_WALK_SPEED_CHANGE_ACK:          move_type = MOVE_WALK;          force_move_type = MOVE_WALK;        break;
        case CMSG_FORCE_RUN_SPEED_CHANGE_ACK:           move_type = MOVE_RUN;           force_move_type = MOVE_RUN;         break;
        case CMSG_FORCE_RUN_BACK_SPEED_CHANGE_ACK:      move_type = MOVE_RUN_BACK;      force_move_type = MOVE_RUN_BACK;    break;
        case CMSG_FORCE_SWIM_SPEED_CHANGE_ACK:          move_type = MOVE_SWIM;          force_move_type = MOVE_SWIM;        break;
        case CMSG_FORCE_SWIM_BACK_SPEED_CHANGE_ACK:     move_type = MOVE_SWIM_BACK;     force_move_type = MOVE_SWIM_BACK;   break;
        case CMSG_FORCE_TURN_RATE_CHANGE_ACK:           move_type = MOVE_TURN_RATE;     force_move_type = MOVE_TURN_RATE;   break;
        case CMSG_FORCE_FLIGHT_SPEED_CHANGE_ACK:        move_type = MOVE_FLIGHT;        force_move_type = MOVE_FLIGHT;      break;
        case CMSG_FORCE_FLIGHT_BACK_SPEED_CHANGE_ACK:   move_type = MOVE_FLIGHT_BACK;   force_move_type = MOVE_FLIGHT_BACK; break;
        case CMSG_FORCE_PITCH_RATE_CHANGE_ACK:          move_type = MOVE_PITCH_RATE;    force_move_type = MOVE_PITCH_RATE;  break;
        default:
            sLog->outError("WorldSession::HandleForceSpeedChangeAck: Unknown move type opcode: %u", opcode);
            return;
    }

    // skip all forced speed changes except last and unexpected
    // in run/mounted case used one ACK and it must be skipped.m_forced_speed_changes[MOVE_RUN} store both.
    if (_player->m_forced_speed_changes[force_move_type] > 0)
    {
        --_player->m_forced_speed_changes[force_move_type];
        if (_player->m_forced_speed_changes[force_move_type] > 0)
            return;
    }

    if (!_player->GetTransport() && fabs(_player->GetSpeed(move_type) - newspeed) > 0.01f)
    {
        if (_player->GetSpeed(move_type) > newspeed)         // must be greater - just correct
        {
            sLog->outError("%sSpeedChange player %s is NOT correct (must be %f instead %f), force set to correct value",
                move_type_name[move_type], _player->GetName().c_str(), _player->GetSpeed(move_type), newspeed);
            _player->SetSpeed(move_type, _player->GetSpeedRate(move_type), true);
        }
        else                                                // must be lesser - cheating
        {
            sLog->outBasic("Player %s from account id %u kicked for incorrect speed (must be %f instead %f)",
                _player->GetName().c_str(), GetAccountId(), _player->GetSpeed(move_type), newspeed);
            KickPlayer();
        }
    }
}

void WorldSession::HandleMovementOpcodes(WorldPacket & recvData)
{
    uint16 opcode = recvData.GetOpcode();

    Unit* mover = _player->m_mover;

    ASSERT(mover != NULL);                      // there must always be a mover

    Player* plrMover = mover->ToPlayer();

    // ignore, waiting processing in WorldSession::HandleMoveWorldportAckOpcode and WorldSession::HandleMoveTeleportAck
    if (plrMover && plrMover->IsBeingTeleported())
    {
        recvData.rfinish();                     // prevent warnings spam
        return;
    }

    /* extract packet */
    uint64 guid;

    recvData.readPackGUID(guid);

    MovementInfo movementInfo;
    movementInfo.guid = guid;
    ReadMovementInfo(recvData, &movementInfo);

    recvData.rfinish();                         // prevent warnings spam

    // pussywizard: typical check for incomming movement packets
    if (!mover || !mover->IsInWorld() || mover->IsDuringRemoveFromWorld() || guid != mover->GetGUID())
        return;

    if (!movementInfo.pos.IsPositionValid())
    {
        recvData.rfinish();                     // prevent warnings spam
        return;
    }

    if (movementInfo.flags & MOVEMENTFLAG_ONTRANSPORT)
    {
        // T_POS ON VEHICLES!
        if (mover->GetVehicle())
            movementInfo.transport.pos = mover->m_movementInfo.transport.pos;

        // transports size limited
        // (also received at zeppelin leave by some reason with t_* as absolute in continent coordinates, can be safely skipped)
        if (movementInfo.transport.pos.GetPositionX() > 75.0f || movementInfo.transport.pos.GetPositionY() > 75.0f || movementInfo.transport.pos.GetPositionZ() > 75.0f ||
            movementInfo.transport.pos.GetPositionX() < -75.0f || movementInfo.transport.pos.GetPositionY() < -75.0f || movementInfo.transport.pos.GetPositionZ() < -75.0f)
        {
            recvData.rfinish();                   // prevent warnings spam
            return;
        }

        if (!Trinity::IsValidMapCoord(movementInfo.pos.GetPositionX() + movementInfo.transport.pos.GetPositionX(), movementInfo.pos.GetPositionY() + movementInfo.transport.pos.GetPositionY(),
            movementInfo.pos.GetPositionZ() + movementInfo.transport.pos.GetPositionZ(), movementInfo.pos.GetOrientation() + movementInfo.transport.pos.GetOrientation()))
        {
            recvData.rfinish();                   // prevent warnings spam
            return;
        }

        // if we boarded a transport, add us to it
        if (plrMover)
        {
            if (!plrMover->GetTransport())
            {
                if (Transport* transport = plrMover->GetMap()->GetTransport(movementInfo.transport.guid))
                {
                    plrMover->m_transport = transport;
                    transport->AddPassenger(plrMover);
                }
            }
            else if (plrMover->GetTransport()->GetGUID() != movementInfo.transport.guid)
            {
                bool foundNewTransport = false;
                plrMover->m_transport->RemovePassenger(plrMover);
                if (Transport* transport = plrMover->GetMap()->GetTransport(movementInfo.transport.guid))
                {
                    foundNewTransport = true;
                    plrMover->m_transport = transport;
                    transport->AddPassenger(plrMover);
                }

                if (!foundNewTransport)
                {
                    plrMover->m_transport = NULL;
                    movementInfo.transport.Reset();
                }
            }
        }

        if (!mover->GetTransport() && !mover->GetVehicle())
            movementInfo.flags &= ~MOVEMENTFLAG_ONTRANSPORT;
    }
    else if (plrMover && plrMover->GetTransport()) // if we were on a transport, leave
    {
        plrMover->m_transport->RemovePassenger(plrMover);
        plrMover->m_transport = NULL;
        movementInfo.transport.Reset();
    }

//.........这里部分代码省略.........

void WorldSession::HandleChangeVehicleSeat( WorldPacket &recv_data ){
	if( _player->GetCurrentVehicle() == NULL )
		return;

	switch( recv_data.GetOpcode() ){
		case CMSG_REQUEST_VEHICLE_PREV_SEAT:
			_player->GetCurrentVehicle()->MovePassengerToPrevSeat( _player );
			break;

		case CMSG_REQUEST_VEHICLE_NEXT_SEAT:
			_player->GetCurrentVehicle()->MovePassengerToNextSeat( _player );
			break;

		// Used when switching from a normal seat to a controlling seat, or to an accessory
		case CMSG_REQUEST_VEHICLE_SWITCH_SEAT:{
			WoWGuid vehicle;
			uint8 seat = 0;
			
			recv_data >> vehicle;
			recv_data >> seat;

			if( vehicle.GetOldGuid() == _player->GetCurrentVehicle()->GetOwner()->GetGUID() ){
				_player->GetCurrentVehicle()->MovePassengerToSeat( _player, seat );
			}else{
				Unit *u = _player->GetMapMgr()->GetUnit( vehicle.GetOldGuid() );
				if( u == NULL )
					return;

				if( u->GetVehicleComponent() == NULL )
					return;

				// Has to be same vehicle, or an accessory of the vehicle
				if( _player->GetVehicleBase()->GetGUID() != u->GetVehicleBase()->GetGUID() )
					return;

				_player->GetCurrentVehicle()->EjectPassenger( _player );
				u->GetVehicleComponent()->AddPassengerToSeat( _player, seat );
			}

			break;}

	    // Used when switching from controlling seat to accessory, or from accessory to accessory
		case CMSG_CHANGE_SEATS_ON_CONTROLLED_VEHICLE:{
			WoWGuid src_guid;
			WoWGuid dst_guid;
			uint8 seat = 0;			

			recv_data >> src_guid;
			
			Unit *src_vehicle = _player->GetMapMgr()->GetUnit( src_guid.GetOldGuid() );
			if( src_vehicle == NULL )
				return;
			if(_player->GetVehicleBase())
				ReadMovementInfo(recv_data, &_player->GetVehicleBase()->movement_info);
			recv_data >> dst_guid;
			recv_data >> seat;
			
			if( src_vehicle->GetVehicleComponent() == NULL )
				return;
			
			if( src_vehicle->GetGUID() != _player->GetCurrentVehicle()->GetOwner()->GetGUID() )
				return;
			
			Unit *dst_vehicle = _player->GetMapMgr()->GetUnit( dst_guid.GetOldGuid() );
			if( dst_vehicle == NULL )
				return;
			
			if( dst_vehicle->GetVehicleComponent() == NULL )
				return;
			
			if( src_vehicle->GetGUID() == dst_vehicle->GetGUID() ){
				src_vehicle->GetVehicleComponent()->MovePassengerToSeat( _player, seat );
			}else{
				// Has to be the same vehicle or an accessory of the vehicle
				if( src_vehicle->GetVehicleBase()->GetGUID() != dst_vehicle->GetVehicleBase()->GetGUID() )
					return;

				_player->GetCurrentVehicle()->EjectPassenger( _player );
				dst_vehicle->GetVehicleComponent()->AddPassengerToSeat( _player, seat );
			}

			break;}
	}
}

void WorldSession::HandleMovementOpcodes(WorldPacket & recv_data)
{
    uint16 opcode = recv_data.GetOpcode();
    recv_data.hexlike();

    Unit *mover = _player->m_mover;

    ASSERT(mover != NULL);                                  // there must always be a mover

    Player *plMover = mover->GetTypeId() == TYPEID_PLAYER ? (Player*)mover : NULL;

    // ignore, waiting processing in WorldSession::HandleMoveWorldportAckOpcode and WorldSession::HandleMoveTeleportAck
    if (plMover && plMover->IsBeingTeleported())
    {
        recv_data.rpos(recv_data.wpos());                   // prevent warnings spam
        return;
    }

    /* extract packet */
    uint64 guid;

    recv_data.readPackGUID(guid);

    MovementInfo movementInfo;
    movementInfo.guid = guid;
    ReadMovementInfo(recv_data, &movementInfo);

    recv_data.rpos(recv_data.wpos());                   // prevent warnings spam

    // prevent tampered movement data
    if (guid != mover->GetGUID())
        return;

    if (!movementInfo.pos.IsPositionValid())
    {
        recv_data.rpos(recv_data.wpos());                   // prevent warnings spam
        return;
    }

    /* handle special cases */
    if (movementInfo.flags & MOVEMENTFLAG_ONTRANSPORT)
    {
        // transports size limited
        // (also received at zeppelin leave by some reason with t_* as absolute in continent coordinates, can be safely skipped)
        if (movementInfo.t_pos.GetPositionX() > 50 || movementInfo.t_pos.GetPositionY() > 50 || movementInfo.t_pos.GetPositionZ() > 50)
        {
            recv_data.rpos(recv_data.wpos());                   // prevent warnings spam
            return;
        }

        if (!Trinity::IsValidMapCoord(movementInfo.pos.GetPositionX() + movementInfo.t_pos.GetPositionX(), movementInfo.pos.GetPositionY() + movementInfo.t_pos.GetPositionY(),
            movementInfo.pos.GetPositionZ() + movementInfo.t_pos.GetPositionZ(), movementInfo.pos.GetOrientation() + movementInfo.t_pos.GetOrientation()))
        {
            recv_data.rpos(recv_data.wpos());                   // prevent warnings spam
            return;
        }

        // if we boarded a transport, add us to it
        if (plMover && !plMover->GetTransport())
        {
            // elevators also cause the client to send MOVEMENTFLAG_ONTRANSPORT - just unmount if the guid can be found in the transport list
            for (MapManager::TransportSet::const_iterator iter = sMapMgr->m_Transports.begin(); iter != sMapMgr->m_Transports.end(); ++iter)
            {
                if ((*iter)->GetGUID() == movementInfo.t_guid)
                {
                    plMover->m_transport = (*iter);
                    (*iter)->AddPassenger(plMover);
                    break;
                }
            }
        }

        if (!mover->GetTransport() && !mover->GetVehicle())
        {
            GameObject *go = mover->GetMap()->GetGameObject(movementInfo.t_guid);
            if (!go || go->GetGoType() != GAMEOBJECT_TYPE_TRANSPORT)
                movementInfo.flags &= ~MOVEMENTFLAG_ONTRANSPORT;
        }
    }
    else if (plMover && plMover->GetTransport())                // if we were on a transport, leave
    {
        plMover->m_transport->RemovePassenger(plMover);
        plMover->m_transport = NULL;
        movementInfo.t_pos.Relocate(0.0f, 0.0f, 0.0f, 0.0f);
        movementInfo.t_time = 0;
        movementInfo.t_seat = -1;
    }

    // fall damage generation (ignore in flight case that can be triggered also at lags in moment teleportation to another map).
    if (opcode == MSG_MOVE_FALL_LAND && plMover && !plMover->isInFlight())
        plMover->HandleFall(movementInfo);

    if (plMover && ((movementInfo.flags & MOVEMENTFLAG_SWIMMING) != 0) != plMover->IsInWater())
    {
        // now client not include swimming flag in case jumping under water
        plMover->SetInWater(!plMover->IsInWater() || plMover->GetBaseMap()->IsUnderWater(movementInfo.pos.GetPositionX(), movementInfo.pos.GetPositionY(), movementInfo.pos.GetPositionZ()));
    }

    /*----------------------*/

//.........这里部分代码省略.........

void WorldSession::HandleMovementOpcodes( WorldPacket & recv_data )
{
    uint32 opcode = recv_data.GetOpcode();
    sLog.outDebug("WORLD: Recvd %s (%u, 0x%X) opcode", LookupOpcodeName(opcode), opcode, opcode);
    recv_data.hexlike();

    Unit *mover = _player->m_mover;
    Player *plMover = mover->GetTypeId() == TYPEID_PLAYER ? (Player*)mover : NULL;

    // ignore, waiting processing in WorldSession::HandleMoveWorldportAckOpcode and WorldSession::HandleMoveTeleportAck
    if(plMover && plMover->IsBeingTeleported())
    {
        recv_data.rpos(recv_data.wpos());                   // prevent warnings spam
        return;
    }

    /* extract packet */
    uint64 guid;

    if(!recv_data.readPackGUID(guid))
        return;

    MovementInfo movementInfo;
    movementInfo.guid = guid;
    ReadMovementInfo(recv_data, &movementInfo);
    /*----------------*/

    if(!(movementInfo.flags & MOVEMENTFLAG_ONTRANSPORT) && _player->GetVehicleGUID())
    {
        if(mover->GetGUID() == _player->GetGUID())
        {
            return;
        }
    }
    // we sent a movement packet with MOVEMENTFLAG_ONTRANSPORT and we are on vehicle
    // this can be moving on vehicle or entering another transport (eg. boat)
    if((movementInfo.flags & MOVEMENTFLAG_ONTRANSPORT) && _player->GetVehicleGUID())
    {
        // we are controlling that vehicle
        if(mover->GetGUID() == _player->GetVehicleGUID())
        {
            // we sent movement packet, related to movement ON vehicle,
            // but not WITH vehicle, so mover = player
            if(_player->GetVehicleGUID() == movementInfo.t_guid)
            {
                // this is required to avoid client crash, otherwise it will result
                // in moving with vehicle on the same vehicle and that = crash
                mover = _player;
                plMover = _player;
            }
        }
        if(_player->GetVehicleGUID() == movementInfo.t_guid)
        {
            _player->m_SeatData.OffsetX = movementInfo.t_x;
            _player->m_SeatData.OffsetY = movementInfo.t_y;
            _player->m_SeatData.OffsetZ = movementInfo.t_z;
            _player->m_SeatData.Orientation = movementInfo.t_o;
        }
    }

        recv_data.rpos(recv_data.wpos());                   // prevent warnings spam
    if (!MaNGOS::IsValidMapCoord(movementInfo.x, movementInfo.y, movementInfo.z, movementInfo.o))
    {
        recv_data.rpos(recv_data.wpos());                   // prevent warnings spam
        return;
    }

    /* handle special cases */
    if (movementInfo.HasMovementFlag(MOVEMENTFLAG_ONTRANSPORT) && !mover->GetVehicleGUID())
    {
        // transports size limited
        // (also received at zeppelin leave by some reason with t_* as absolute in continent coordinates, can be safely skipped)
        if( movementInfo.t_x > 50 || movementInfo.t_y > 50 || movementInfo.t_z > 50 )
        {
            recv_data.rpos(recv_data.wpos());                   // prevent warnings spam
            return;
        }

        if( !MaNGOS::IsValidMapCoord(movementInfo.x+movementInfo.t_x, movementInfo.y + movementInfo.t_y,
            movementInfo.z + movementInfo.t_z, movementInfo.o + movementInfo.t_o) )
        {
            recv_data.rpos(recv_data.wpos());                   // prevent warnings spam
            return;
        }

        // if we boarded a transport, add us to it
        if (plMover && !plMover->m_transport)
        {
            // elevators also cause the client to send MOVEMENTFLAG_ONTRANSPORT - just unmount if the guid can be found in the transport list
            for (MapManager::TransportSet::const_iterator iter = MapManager::Instance().m_Transports.begin(); iter != MapManager::Instance().m_Transports.end(); ++iter)
            {
                if ((*iter)->GetGUID() == movementInfo.t_guid)
                {
                    plMover->m_transport = (*iter);
                    (*iter)->AddPassenger(plMover);
                    break;
                }
            }
        }
    }
//.........这里部分代码省略.........

void WorldSession::HandleMovementOpcodes(WorldPacket& recvData)
{
    uint16 opcode = recvData.GetOpcode();

    Unit* mover = _player->m_mover;

    ASSERT(mover != NULL);                      // there must always be a mover

    Player* plrMover = mover->ToPlayer();

    // ignore, waiting processing in WorldSession::HandleMoveWorldportAckOpcode and WorldSession::HandleMoveTeleportAck
    if (plrMover && plrMover->IsBeingTeleported())
    {
        recvData.rfinish();                     // prevent warnings spam
        return;
    }

    /* extract packet */
    uint64 guid;

    recvData.readPackGUID(guid);

    MovementInfo movementInfo;
    movementInfo.guid = guid;
    ReadMovementInfo(recvData, &movementInfo);

    recvData.rfinish();                         // prevent warnings spam

    // prevent tampered movement data
    if (guid != mover->GetGUID())
        return;

    if (!movementInfo.pos.IsPositionValid())
    {
        recvData.rfinish();                     // prevent warnings spam
        return;
    }

    /* handle special cases */
    if (movementInfo.flags & MOVEMENTFLAG_ONTRANSPORT)
    {
        // transports size limited
        // (also received at zeppelin leave by some reason with t_* as absolute in continent coordinates, can be safely skipped)
        if (movementInfo.transport.pos.GetPositionX() > 50 || movementInfo.transport.pos.GetPositionY() > 50 || movementInfo.transport.pos.GetPositionZ() > 50)
        {
            recvData.rfinish();                 // prevent warnings spam
            return;
        }

        if (!Trinity::IsValidMapCoord(movementInfo.pos.GetPositionX() + movementInfo.transport.pos.GetPositionX(), movementInfo.pos.GetPositionY() + movementInfo.transport.pos.GetPositionY(),
            movementInfo.pos.GetPositionZ() + movementInfo.transport.pos.GetPositionZ(), movementInfo.pos.GetOrientation() + movementInfo.transport.pos.GetOrientation()))
        {
            recvData.rfinish();                 // prevent warnings spam
            return;
        }

        // if we boarded a transport, add us to it
        if (plrMover)
        {
            if (!plrMover->GetTransport())
            {
                if (Transport* transport = plrMover->GetMap()->GetTransport(movementInfo.transport.guid))
                {
                    plrMover->m_transport = transport;
                    transport->AddPassenger(plrMover);
                }
            }
            else if (plrMover->GetTransport()->GetGUID() != movementInfo.transport.guid)
            {
                bool foundNewTransport = false;
                plrMover->m_transport->RemovePassenger(plrMover);
                if (Transport* transport = plrMover->GetMap()->GetTransport(movementInfo.transport.guid))
                {
                    foundNewTransport = true;
                    plrMover->m_transport = transport;
                    transport->AddPassenger(plrMover);
                }

                if (!foundNewTransport)
                {
                    plrMover->m_transport = NULL;
                    movementInfo.transport.Reset();
                }
            }
        }

        if (!mover->GetTransport() && !mover->GetVehicle())
        {
            GameObject* go = mover->GetMap()->GetGameObject(movementInfo.transport.guid);
            if (!go || go->GetGoType() != GAMEOBJECT_TYPE_TRANSPORT)
                movementInfo.flags &= ~MOVEMENTFLAG_ONTRANSPORT;
        }
    }
    else if (plrMover && plrMover->GetTransport())                // if we were on a transport, leave
    {
        plrMover->m_transport->RemovePassenger(plrMover);
        plrMover->m_transport = NULL;
        movementInfo.transport.Reset();
    }

//.........这里部分代码省略.........