bool AntiCheat::CheckMountain()
{
    if (m_currentmovementInfo->HasMovementFlag(MovementFlags(MOVEFLAG_FLYING | MOVEFLAG_SWIMMING)))
        return true;

    if ( m_currentDeltaZ > 0 )
        return true;

    int  serverDelta = WorldTimer::getMSTimeDiff(m_oldCheckTime[CHECK_MOVEMENT_MOUNTAIN],WorldTimer::getMSTime());

    float zSpeed = - m_currentDeltaZ / serverDelta;

    float tg_z = (m_currentDelta > 0.0f) ? (-m_currentDeltaZ / m_currentDelta) : -99999;

    if (tg_z < m_currentConfig->checkFloatParam[1] || zSpeed < m_currentConfig->checkFloatParam[0] )
        return true;

    char buffer[255];
    sprintf(buffer," deltaZ %e, angle %e, speedZ %e ",
            m_currentDeltaZ, tg_z, zSpeed);
    m_currentCheckResult.clear();
    m_currentCheckResult.append(buffer);

    return false;
}

bool AntiCheat::CheckFly()
{
    if (GetMover()->GetTerrain()->IsUnderWater(m_currentmovementInfo->GetPos()->x, m_currentmovementInfo->GetPos()->y, m_currentmovementInfo->GetPos()->z - 2.0f))
        return true;

    if (!m_currentmovementInfo->HasMovementFlag(MovementFlags(MOVEFLAG_CAN_FLY | MOVEFLAG_FLYING | MOVEFLAG_ROOT)))
        return true;

    if (GetMover()->HasAuraType(SPELL_AURA_FEATHER_FALL))
        return true;

    float ground_z = GetMover()->GetTerrain()->GetHeight(GetPlayer()->GetPositionX(),GetPlayer()->GetPositionY(),MAX_HEIGHT);
    float floor_z  = GetMover()->GetTerrain()->GetHeight(GetPlayer()->GetPositionX(),GetPlayer()->GetPositionY(),GetPlayer()->GetPositionZ());
    float map_z    = ((floor_z <= (INVALID_HEIGHT+5.0f)) ? ground_z : floor_z);

    if (map_z + m_currentConfig->checkFloatParam[0] > GetPlayer()->GetPositionZ() && map_z > (INVALID_HEIGHT + m_currentConfig->checkFloatParam[0] + 5.0f))
        return true;

    if (m_currentDeltaZ > 0.0f)
        return true;

    char buffer[255];
    sprintf(buffer," flying without fly auras on height %e but allowed %e",
            GetPlayer()->GetPositionZ(), map_z + m_currentConfig->checkFloatParam[0]);
    m_currentCheckResult.clear();
    m_currentCheckResult.append(buffer);

    return false;
}

void WorldSession::HandleMoveKnockBackAck( WorldPacket & recv_data )
{
    // CHECK_PACKET_SIZE(recv_data,?);
    sLog.outDebug("CMSG_MOVE_KNOCK_BACK_ACK");
    // Currently not used but maybe use later for recheck final player position
    // (must be at call same as into "recv_data >> x >> y >> z >> orientation;"

    /* extract packet */
    MovementInfo movementInfo;
    uint32 unk1,unk2,unk3;
    recv_data >> unk1 >> unk2 >> unk3;
    ReadMovementInfo(recv_data, &movementInfo);

    //Save movement flags
    _player->m_movementInfo.SetMovementFlags(MovementFlags(movementInfo.flags));

    #ifdef MOVEMENT_ANTICHEAT_DEBUG
    sLog.outBasic("%s CMSG_MOVE_KNOCK_BACK_ACK: tm:%d ftm:%d | %f,%f,%fo(%f) [%X]",GetPlayer()->GetName(),movementInfo.time,movementInfo.fallTime,movementInfo.x,movementInfo.y,movementInfo.z,movementInfo.o,movementInfo.flags);
    sLog.outBasic("%s CMSG_MOVE_KNOCK_BACK_ACK additional: vspeed:%f, hspeed:%f",GetPlayer()->GetName(), movementInfo.j_unk, movementInfo.j_xyspeed);
    #endif

    _player->m_movementInfo = movementInfo;
    _player->m_anti_Last_HSpeed = movementInfo.j_xyspeed;
    _player->m_anti_Last_VSpeed = movementInfo.j_unk < 3.2f ? movementInfo.j_unk - 1.0f : 3.2f;

    uint32 dt = (_player->m_anti_Last_VSpeed < 0) ? (int)(ceil(_player->m_anti_Last_VSpeed/-25)*1000) : (int)(ceil(_player->m_anti_Last_VSpeed/25)*1000);
    _player->m_anti_LastSpeedChangeTime = movementInfo.time + dt + 1000;
}

void WorldSession::ReadMovementInfo(WorldPacket &data, MovementInfo *mi)
{
    CHECK_PACKET_SIZE(data, data.rpos()+4+2+4+4+4+4+4);
    data >> mi->flags;
    data >> mi->unk1;
    data >> mi->time;
    data >> mi->x;
    data >> mi->y;
    data >> mi->z;
    data >> mi->o;

    if(mi->HasMovementFlag(MOVEMENTFLAG_ONTRANSPORT))
    {
        if(!data.readPackGUID(mi->t_guid))
            return;

        CHECK_PACKET_SIZE(data, data.rpos()+4+4+4+4+4+1);
        data >> mi->t_x;
        data >> mi->t_y;
        data >> mi->t_z;
        data >> mi->t_o;
        data >> mi->t_time;
        data >> mi->t_seat;
    }

    if((mi->HasMovementFlag(MovementFlags(MOVEMENTFLAG_SWIMMING | MOVEMENTFLAG_FLYING2))) || (mi->unk1 & 0x20))
    {
        CHECK_PACKET_SIZE(data, data.rpos()+4);
        data >> mi->s_pitch;
    }

void MotionMaster::MoveFall(float z, uint32 id)
{
	i_owner->RemoveByteFlag(UNIT_FIELD_BYTES_1, 3, 0x02);
	i_owner->m_movementInfo.RemoveMovementFlag(MovementFlags(MOVEFLAG_CAN_FLY | MOVEFLAG_FLYING));
	i_owner->SetFacingTo(i_owner->GetOrientation());
    //AddUnitMovementFlag(MOVEMENTFLAG_FALLING);
    MoveCharge(i_owner->GetPositionX(), i_owner->GetPositionY(), z, 3.0f, id);
}

 MoveSplineInit::MoveSplineInit(Unit& m) : unit(m)
 {
     args.splineId = splineIdGen.NewId();
     // Elevators also use MOVEMENTFLAG_ONTRANSPORT but we do not keep track of their position changes
     args.TransformForTransport = unit.GetTransGUID();
     // mix existing state into new
     args.flags.walkmode = unit.m_movementInfo.HasMovementFlag(MOVEMENTFLAG_WALKING);
     args.flags.flying = unit.m_movementInfo.HasMovementFlag(MovementFlags(MOVEMENTFLAG_CAN_FLY | MOVEMENTFLAG_DISABLE_GRAVITY));
     args.flags.smoothGroundPath = true; // enabled by default, CatmullRom mode or client config "pathSmoothing" will disable this
 }

    void MoveSplineInit::Stop()
    {
        MoveSpline& move_spline = *unit.movespline;

        // No need to stop if we are not moving
        if (move_spline.Finalized())
            return;

        // ToDo: update transport info if required
        // TransportInfo* transportInfo = unit.GetTransportInfo();

        Location real_position(unit.GetPositionX(), unit.GetPositionY(), unit.GetPositionZ(), unit.GetOrientation());

        // If boarded use current local position
        // if (transportInfo)
        //    transportInfo->GetLocalPosition(real_position.x, real_position.y, real_position.z, real_position.orientation);

        // there is a big chance that current position is unknown if current state is not finalized, need compute it
        // this also allows calculate spline position and update map position in much greater intervals
        if (!move_spline.Finalized() /*&& !transportInfo*/)
            real_position = move_spline.ComputePosition();

        if (args.path.empty())
        {
            // should i do the things that user should do?
            MoveTo(real_position);
        }

        // current first vertex
        args.path[0] = real_position;

        args.flags = MoveSplineFlag::Done;
        unit.m_movementInfo.RemoveMovementFlag(MovementFlags(MOVEFLAG_FORWARD | MOVEFLAG_SPLINE_ENABLED));
        move_spline.Initialize(args);

        WorldPacket data(SMSG_MONSTER_MOVE, 64);
        data << unit.GetPackGUID();

        // ToDo: update transport info if required
        /*if (transportInfo)
        {
            data.SetOpcode(SMSG_MONSTER_MOVE_TRANSPORT);
            data << transportInfo->GetTransportGuid().WriteAsPacked();
        }*/

        data << real_position.x << real_position.y << real_position.z;
        data << move_spline.GetId();
        data << uint8(MonsterMoveStop);
        unit.SendMessageToSet(&data, true);
    }

void WorldSession::HandleLogoutRequestOpcode( WorldPacket & /*recv_data*/ )
{
    DEBUG_LOG( "WORLD: Recvd CMSG_LOGOUT_REQUEST Message, security - %u", GetSecurity() );

    if (ObjectGuid lootGuid = GetPlayer()->GetLootGuid())
        DoLootRelease(lootGuid);

    //Can not logout if...
    if( GetPlayer()->isInCombat() ||                        //...is in combat
        GetPlayer()->duel         ||                        //...is in Duel
                                                            //...is jumping ...is falling
        GetPlayer()->m_movementInfo.HasMovementFlag(MovementFlags(MOVEFLAG_FALLING | MOVEFLAG_FALLINGFAR)))
    {
        WorldPacket data( SMSG_LOGOUT_RESPONSE, (2+4) ) ;
        data << (uint8)0xC;
        data << uint32(0);
        data << uint8(0);
        SendPacket( &data );
        LogoutRequest(0);
        return;
    }

    //instant logout in taverns/cities or on taxi or for admins, gm's, mod's if its enabled in mangosd.conf
    if (GetPlayer()->HasFlag(PLAYER_FLAGS, PLAYER_FLAGS_RESTING) || GetPlayer()->IsTaxiFlying() ||
        GetSecurity() >= (AccountTypes)sWorld.getConfig(CONFIG_UINT32_INSTANT_LOGOUT))
    {
        LogoutPlayer(true);
        return;
    }

    // not set flags if player can't free move to prevent lost state at logout cancel
    if(GetPlayer()->CanFreeMove())
    {
        float height = GetPlayer()->GetTerrain()->GetHeight(GetPlayer()->GetPositionX(), GetPlayer()->GetPositionY(), GetPlayer()->GetPositionZ());
        if ((GetPlayer()->GetPositionZ() < height + 0.1f) && !(GetPlayer()->IsInWater()))
            GetPlayer()->SetStandState(UNIT_STAND_STATE_SIT);

        WorldPacket data( SMSG_FORCE_MOVE_ROOT, (8+4) );    // guess size
        data << GetPlayer()->GetPackGUID();
        data << (uint32)2;
        SendPacket( &data );
        GetPlayer()->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_STUNNED);
    }

    WorldPacket data( SMSG_LOGOUT_RESPONSE, 5 );
    data << uint32(0);
    data << uint8(0);
    SendPacket( &data );
    LogoutRequest(time(NULL));
}

    void MoveSplineInit::Stop()
    {
        MoveSpline& move_spline = *unit.movespline;

        // No need to stop if we are not moving
        if (move_spline.Finalized())
            return;

        Location real_position(unit.GetPositionX(), unit.GetPositionY(), unit.GetPositionZ(), unit.GetOrientation());


        // there is a big chance that current position is unknown if current state is not finalized, need compute it
        // this also allows calculate spline position and update map position in much greater intervals
        if (!move_spline.Finalized())
            real_position = move_spline.ComputePosition();

        if (args.path.empty())
        {
            // should i do the things that user should do?
            MoveTo(real_position);
        }

        // current first vertex
        args.path[0] = real_position;

        args.flags = MoveSplineFlag::Done;
        unit.m_movementInfo.RemoveMovementFlag(MovementFlags(MOVEMENTFLAG_FORWARD | MOVEMENTFLAG_SPLINE_ENABLED));
        move_spline.Initialize(args);

        WorldPacket data(SMSG_MONSTER_MOVE, 64);
        data << unit.GetPackGUID();

        data << real_position.x << real_position.y << real_position.z;
        data << move_spline.GetId();
        data << uint8(MonsterMoveStop);
        unit.SendMessageToSet(&data, true);
    }

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

    Unit *mover = _player->GetMover();
    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 */
    ObjectGuid guid;
    MovementInfo movementInfo;

    recv_data >> guid.ReadAsPacked();
    recv_data >> movementInfo;
    /*----------------*/

    if (!VerifyMovementInfo(movementInfo, guid))
        return;

    // 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->IsTaxiFlying())
        plMover->HandleFall(movementInfo);


    // ---- anti-cheat features -->>>
    uint32 Anti_TeleTimeDiff=plMover ? time(NULL) - plMover->Anti__GetLastTeleTime() : time(NULL);
    static const uint32 Anti_TeleTimeIgnoreDiff=sWorld.GetMvAnticheatIgnoreAfterTeleport();
    if (plMover && (plMover->m_transport == 0) && sWorld.GetMvAnticheatEnable() &&
        GetPlayer()->GetSession()->GetSecurity() <= sWorld.GetMvAnticheatGmLevel() &&
        GetPlayer()->GetMotionMaster()->GetCurrentMovementGeneratorType()!=FLIGHT_MOTION_TYPE &&
        Anti_TeleTimeDiff>Anti_TeleTimeIgnoreDiff)
    {
        const uint32 CurTime=getMSTime();
        if (getMSTimeDiff(GetPlayer()->m_anti_lastalarmtime,CurTime) > sWorld.GetMvAnticheatAlarmPeriod())
        {
            GetPlayer()->m_anti_alarmcount = 0;
       }
        /* I really don't care about movement-type yet (todo)
        UnitMoveType move_type;

        if (movementInfo.flags & MOVEMENTFLAG_FLYING) move_type = MOVE_FLY;
        else if (movementInfo.flags & MOVEMENTFLAG_SWIMMING) move_type = MOVE_SWIM;
        else if (movementInfo.flags & MOVEMENTFLAG_WALK_MODE) move_type = MOVE_WALK;
        else move_type = MOVE_RUN;*/
        float delta_x = GetPlayer()->GetPositionX() - movementInfo.GetPos()->x;
        float delta_y = GetPlayer()->GetPositionY() - movementInfo.GetPos()->y;
        float delta_z = GetPlayer()->GetPositionZ() - movementInfo.GetPos()->z;
        float delta = sqrt(delta_x * delta_x + delta_y * delta_y); // Len of movement-vector via Pythagoras (a^2+b^2=Len^2)
        float tg_z = 0.0f; //tangens
        float delta_t = getMSTimeDiff(GetPlayer()->m_anti_lastmovetime,CurTime);

        GetPlayer()->m_anti_lastmovetime = CurTime;
        GetPlayer()->m_anti_MovedLen += delta;

       if (delta_t > 15000.0f)
        {   delta_t = 15000.0f;   }

        // Tangens of walking angel
        if (!(movementInfo.GetMovementFlags() & (MOVEFLAG_FLYING | MOVEFLAG_SWIMMING)))
        {
            tg_z = ((delta !=0.0f) && (delta_z > 0.0f)) ? (atan((delta_z*delta_z) / delta) * 180.0f / M_PI) : 0.0f;
        }

        //antiOFF fall-damage, MOVEMENTFLAG_UNK4 seted by client if player try movement when falling and unset in this case the MOVEMENTFLAG_FALLING flag.
        if ((!GetPlayer()->CanFly() && GetPlayer()->m_anti_BeginFallZ == INVALID_HEIGHT) &&
            (movementInfo.GetMovementFlags() & (MOVEFLAG_FALLING | MOVEFLAG_FALLINGFAR)) != 0)
        {
            GetPlayer()->m_anti_BeginFallZ=(float)(movementInfo.GetPos()->z);
        }

       if (GetPlayer()->m_anti_NextLenCheck <= CurTime)
       {
            // Check every 500ms is a lot more advisable then 1000ms, because normal movment packet arrives every 500ms
           uint32 OldNextLenCheck=GetPlayer()->m_anti_NextLenCheck;
            float delta_xyt=GetPlayer()->m_anti_MovedLen/(float)(getMSTimeDiff(OldNextLenCheck-500,CurTime));
            GetPlayer()->m_anti_NextLenCheck = CurTime+500;
           GetPlayer()->m_anti_MovedLen = 0.0f;
            static const float MaxDeltaXYT = sWorld.GetMvAnticheatMaxXYT();

           if (delta_xyt > MaxDeltaXYT && delta<=100.0f && GetPlayer()->GetZoneId() != 2257)
            {
                if (sWorld.GetMvAnticheatSpeedCheck())
                    Anti__CheatOccurred(CurTime,"Speed hack",delta_xyt,LookupOpcodeName(opcode),
                   (float)(GetPlayer()->GetMotionMaster()->GetCurrentMovementGeneratorType()),
                    (float)(getMSTimeDiff(OldNextLenCheck-500,CurTime)));
            }
       }

        if (delta > 100.0f && GetPlayer()->GetZoneId() != 2257)
        {
           if (sWorld.GetMvAnticheatTeleportCheck())
                Anti__ReportCheat("Tele hack",delta,LookupOpcodeName(opcode));
//.........这里部分代码省略.........

//.........这里部分代码省略.........
    static const uint32 Anti_TeleTimeIgnoreDiff=sWorld.GetMvAnticheatIgnoreAfterTeleport();
    if (plMover && (plMover->m_transport == 0) && sWorld.GetMvAnticheatEnable() &&
        GetPlayer()->GetSession()->GetSecurity() <= sWorld.GetMvAnticheatGmLevel() &&
        GetPlayer()->GetMotionMaster()->GetCurrentMovementGeneratorType()!=FLIGHT_MOTION_TYPE &&
        Anti_TeleTimeDiff>Anti_TeleTimeIgnoreDiff)
    {
        const uint32 CurTime=getMSTime();
        if (getMSTimeDiff(GetPlayer()->m_anti_lastalarmtime,CurTime) > sWorld.GetMvAnticheatAlarmPeriod())
        {
            GetPlayer()->m_anti_alarmcount = 0;
        }
        /* I really don't care about movement-type yet (todo)
        UnitMoveType move_type;

        if (movementInfo.flags & MOVEMENTFLAG_FLYING) move_type = MOVE_FLY;
        else if (movementInfo.flags & MOVEMENTFLAG_SWIMMING) move_type = MOVE_SWIM;
        else if (movementInfo.flags & MOVEMENTFLAG_WALK_MODE) move_type = MOVE_WALK;
        else move_type = MOVE_RUN;*/

        float delta_x = GetPlayer()->GetPositionX() - movementInfo.GetPos()->x;
        float delta_y = GetPlayer()->GetPositionY() - movementInfo.GetPos()->y;
        float delta_z = GetPlayer()->GetPositionZ() - movementInfo.GetPos()->z;
        float delta = sqrt(delta_x * delta_x + delta_y * delta_y); // Len of movement-vector via Pythagoras (a^2+b^2=Len^2)
        float tg_z = 0.0f; //tangens
        float delta_t = getMSTimeDiff(GetPlayer()->m_anti_lastmovetime,CurTime);

        GetPlayer()->m_anti_lastmovetime = CurTime;
        GetPlayer()->m_anti_MovedLen += delta;

        if (delta_t > 15000.0f)
        {   delta_t = 15000.0f;   }

        // Tangens of walking angel
        if (!(movementInfo.GetMovementFlags() & (MOVEFLAG_FLYING | MOVEFLAG_SWIMMING)))
        {
            tg_z = ((delta !=0.0f) && (delta_z > 0.0f)) ? (atan((delta_z*delta_z) / delta) * 180.0f / M_PI) : 0.0f;
        }

        //antiOFF fall-damage, MOVEMENTFLAG_UNK4 seted by client if player try movement when falling and unset in this case the MOVEMENTFLAG_FALLING flag. 
        if ((!GetPlayer()->CanFly() && GetPlayer()->m_anti_BeginFallZ == INVALID_HEIGHT) &&
            (movementInfo.GetMovementFlags() & (MOVEFLAG_FALLING | MOVEFLAG_FALLINGFAR)) != 0)
        {
            GetPlayer()->m_anti_BeginFallZ=(float)(movementInfo.GetPos()->z);
        }

        if (GetPlayer()->m_anti_NextLenCheck <= CurTime)
        {
            // Check every 500ms is a lot more advisable then 1000ms, because normal movment packet arrives every 500ms
            uint32 OldNextLenCheck=GetPlayer()->m_anti_NextLenCheck;
            float delta_xyt=GetPlayer()->m_anti_MovedLen/(float)(getMSTimeDiff(OldNextLenCheck-500,CurTime));
            GetPlayer()->m_anti_NextLenCheck = CurTime+500;
            GetPlayer()->m_anti_MovedLen = 0.0f;
            static const float MaxDeltaXYT = sWorld.GetMvAnticheatMaxXYT();

            if (delta_xyt > MaxDeltaXYT && delta<=100.0f && GetPlayer()->GetZoneId() != 2257)
            {
                if (sWorld.GetMvAnticheatSpeedCheck())
                    Anti__CheatOccurred(CurTime,"Speed hack",delta_xyt,LookupOpcodeName(opcode),
                    (float)(GetPlayer()->GetMotionMaster()->GetCurrentMovementGeneratorType()),
                    (float)(getMSTimeDiff(OldNextLenCheck-500,CurTime)));
            }
        }

        if (delta > 100.0f && GetPlayer()->GetZoneId() != 2257)
        {
            if (sWorld.GetMvAnticheatTeleportCheck())

bool AntiCheat::CheckNeeded(AntiCheatCheck checktype)
{
    if (!sWorld.getConfig(CONFIG_BOOL_ANTICHEAT_ENABLE)
            || !GetPlayer()->IsInWorld()
            || GetPlayer()->IsBeingTeleported()
            || GetPlayer()->GetPlayerbotAI()
            || GetPlayer()->GetSession()->GetSecurity() > int32(sWorld.getConfig(CONFIG_UINT32_ANTICHEAT_GMLEVEL)))
        return false;

    if (GetMover()->HasAuraType(SPELL_AURA_MOD_CONFUSE))
        return false;

    AntiCheatCheck checkMainType =  (checktype >= 100) ? AntiCheatCheck(checktype / 100) : checktype;

    switch( checkMainType)
    {
    case CHECK_NULL:
        return false;
        break;
    case CHECK_MOVEMENT:
        if (   GetPlayer()->GetTransport()
                || GetPlayer()->HasMovementFlag(MOVEFLAG_ONTRANSPORT)
                || GetMover()->GetMotionMaster()->GetCurrentMovementGeneratorType() == FLIGHT_MOTION_TYPE
                || GetPlayer()->IsTaxiFlying())
            return false;
        break;
    case CHECK_SPELL:
        break;
    case CHECK_QUEST:
        return false;
        break;
    case CHECK_TRANSPORT:
        if (!isActiveMover())
            return false;
        break;
    case CHECK_DAMAGE:
    case CHECK_ITEM:
    case CHECK_WARDEN:
        break;
    default:
        return false;
    }

    if (checktype < 100 )
        return true;

    switch( checktype)
    {
    case CHECK_MOVEMENT_SPEED:
        if  (GetMover()->HasAura(56266))
            return false;
        break;
    case CHECK_MOVEMENT_FLY:
    case CHECK_MOVEMENT_ZAXIS:
        if (isCanFly() || !GetMover())
            return false;
        break;
    case CHECK_MOVEMENT_WATERWALKING:
        if (!m_currentmovementInfo->HasMovementFlag(MOVEFLAG_WATERWALKING))
            return false;
        break;
    case CHECK_MOVEMENT_TP2PLANE:
        if (GetMover()->GetTransport())
            return false;
        if (m_currentmovementInfo->HasMovementFlag(MovementFlags(MOVEFLAG_SWIMMING | MOVEFLAG_CAN_FLY | MOVEFLAG_FLYING)))
            return false;
        if (GetMover()->HasAura(60068) && GetMover()->GetTerrain()->IsUnderWater(m_currentmovementInfo->GetPos()->x, m_currentmovementInfo->GetPos()->y, m_currentmovementInfo->GetPos()->z-5.0f))
            return false;
        break;
    case CHECK_MOVEMENT_AIRJUMP:
        if (isCanFly() ||
                !isActiveMover() ||
                GetMover()->HasAuraType(SPELL_AURA_FEATHER_FALL) ||
                GetMover()->GetTerrain()->IsUnderWater(m_currentmovementInfo->GetPos()->x, m_currentmovementInfo->GetPos()->y, m_currentmovementInfo->GetPos()->z-5.0f))
            return false;
        break;
    case CHECK_MOVEMENT_TELEPORT:
        if (!isActiveMover() || GetPlayer()->IsBeingTeleported())
            return false;
        break;
    case CHECK_MOVEMENT_FALL:
        if (isCanFly() || !isActiveMover())
            return false;
        break;
    case CHECK_MOVEMENT_MOUNTAIN:
        if (isCanFly() || !isActiveMover())
            return false;
        break;
    default:
        break;
    }

    return true;

}

//.........这里部分代码省略.........
                            #ifdef MOVEMENT_ANTICHEAT_DEBUG
                            sLog.outError("MA-%s, leave transport. GO xyzo: %f,%f,%f",
                                            plMover->GetName(), go_data->posX,go_data->posY,go_data->posZ);
                            #endif
                        }
                    }

                } else {
                    #ifdef MOVEMENT_ANTICHEAT_DEBUG
                    sLog.outDebug("MA-%s, undefined transport.", plMover->GetName());
                    #endif
                    check_passed = false;
                }
            }
            if (!check_passed){
                if (plMover->m_transport)
                    {
                        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;
                    plMover->m_anti_TransportGUID = 0;
            }
        }
    }
    /* process position-change */
    if (check_passed)
    {
    recv_data.put<uint32>(6, getMSTime());                  // fix time, offset flags(4) + unk(2)
    WorldPacket data(recv_data.GetOpcode(), (mover->GetPackGUID().size()+recv_data.size()));
    data.append(mover->GetPackGUID());                      // use mover guid
    data.append(recv_data.contents(), recv_data.size());
    GetPlayer()->SendMessageToSet(&data, false);

    if(plMover)                                             // nothing is charmed, or player charmed
    {
        plMover->SetPosition(movementInfo.x, movementInfo.y, movementInfo.z, movementInfo.o);
        plMover->m_movementInfo = movementInfo;
        plMover->UpdateFallInformationIfNeed(movementInfo, recv_data.GetOpcode());

        if(plMover->isMovingOrTurning())
            plMover->RemoveSpellsCausingAura(SPELL_AURA_FEIGN_DEATH);

        if(movementInfo.z < -500.0f)
        {
            if(plMover->InBattleGround()
                && plMover->GetBattleGround()
                && plMover->GetBattleGround()->HandlePlayerUnderMap(_player))
            {
                // do nothing, the handle already did if returned true
            }
            else
            {
                // NOTE: this is actually called many times while falling
                // even after the player has been teleported away
                // TODO: discard movement packets after the player is rooted
                if(plMover->isAlive())
                {
                    plMover->EnvironmentalDamage(DAMAGE_FALL_TO_VOID, GetPlayer()->GetMaxHealth());
                    // pl can be alive if GM/etc
                    if(!plMover->isAlive())
                    {
                        // change the death state to CORPSE to prevent the death timer from
                        // starting in the next player update
                        plMover->KillPlayer();
                        plMover->BuildPlayerRepop();
                    }
                }

                // cancel the death timer here if started
                plMover->RepopAtGraveyard();
            }
        }
        //movement anticheat >>>
        if (plMover->m_anti_AlarmCount > 0){
            sLog.outError("MA-%s produce %d anticheat alarms",plMover->GetName(),plMover->m_anti_AlarmCount);
            plMover->m_anti_AlarmCount = 0;
        }
    // end movement anticheat
    }
    else                                                    // creature charmed
    {
        if(mover->IsInWorld())
            mover->GetMap()->CreatureRelocation((Creature*)mover, movementInfo.x, movementInfo.y, movementInfo.z, movementInfo.o);
    }
    
    } else if (plMover) {
        plMover->m_anti_AlarmCount++;
        WorldPacket data;
        plMover->m_movementInfo.SetMovementFlags(MovementFlags(MOVEMENTFLAG_NONE));
        plMover->BuildTeleportAckMsg(&data, plMover->GetPositionX(), plMover->GetPositionY(), plMover->GetPositionZ(), plMover->GetOrientation());
        plMover->GetSession()->SendPacket(&data);
        plMover->BuildHeartBeatMsg(&data);
        plMover->SendMessageToSet(&data, true);
    }
}

bool AntiCheat::CheckNeeded(AntiCheatCheck checktype)
{
    if (!sWorld.getConfig(CONFIG_BOOL_ANTICHEAT_ENABLE)
            || !GetPlayer()->IsInWorld()
            || !GetPlayer()->GetMap()
            || GetPlayer()->IsBeingTeleported()
            || GetPlayer()->GetPlayerbotAI()
            || GetPlayer()->GetSession()->GetSecurity() > int32(sWorld.getConfig(CONFIG_UINT32_ANTICHEAT_GMLEVEL)))
        return false;

    if (!m_currentConfig->disabledZones.empty())
    {
        uint32 zone, area;
        GetPlayer()->GetZoneAndAreaId(zone,area);
        if (m_currentConfig->disabledZones.find(zone) != m_currentConfig->disabledZones.end())
            return false;
    }

    AntiCheatCheck checkMainType =  (checktype >= 100) ? AntiCheatCheck(checktype / 100) : checktype;

    switch( checkMainType)
    {
    case CHECK_NULL:
        return false;
        break;
    case CHECK_MOVEMENT:
        if (   GetPlayer()->IsOnTransport()
//                || GetPlayer()->HasMovementFlag(MOVEFLAG_ONTRANSPORT)
                || GetPlayer()->IsInUnitState(UNIT_ACTION_CONFUSED)
                || GetPlayer()->IsTaxiFlying())
            return false;
        break;
    case CHECK_SPELL:
        break;
    case CHECK_QUEST:
        return false;
        break;
    case CHECK_TRANSPORT:
        if (!isActiveMover())
            return false;
        break;
    case CHECK_WARDEN:
        if (!sWorld.getConfig(CONFIG_BOOL_ANTICHEAT_WARDEN))
            return false;
        break;
    case CHECK_DAMAGE:
    case CHECK_ITEM:
        break;
    default:
        return false;
    }

    if (checktype < 100 )
        return true;

    switch( checktype)
    {
    case CHECK_MOVEMENT_SPEED:
        if  (GetMover()->HasAura(56266))
            return false;
        break;
    case CHECK_MOVEMENT_FLY:
    case CHECK_MOVEMENT_ZAXIS:
        if (isCanFly() || !GetMover())
            return false;
        break;
    case CHECK_MOVEMENT_WATERWALKING:
        if (!m_currentmovementInfo->HasMovementFlag(MOVEFLAG_WATERWALKING))
            return false;
        break;
    case CHECK_MOVEMENT_TP2PLANE:
        if (GetMover()->IsOnTransport())
            return false;
        if (m_currentmovementInfo->HasMovementFlag(MovementFlags(MOVEFLAG_SWIMMING | MOVEFLAG_CAN_FLY | MOVEFLAG_FLYING)))
            return false;
        if (GetMover()->HasAura(60068) && GetMover()->GetTerrain()->IsUnderWater(m_currentmovementInfo->GetPos()->x, m_currentmovementInfo->GetPos()->y, m_currentmovementInfo->GetPos()->z-5.0f))
            return false;
        break;
    case CHECK_MOVEMENT_AIRJUMP:
        if (isCanFly() ||
                !isActiveMover() ||
                GetMover()->GetTerrain()->IsUnderWater(m_currentmovementInfo->GetPos()->x, m_currentmovementInfo->GetPos()->y, m_currentmovementInfo->GetPos()->z-5.0f))
            return false;
        break;
    case CHECK_MOVEMENT_TELEPORT:
        if (!isActiveMover() || GetPlayer()->IsBeingTeleported())
            return false;
        break;
    case CHECK_MOVEMENT_FALL:
        if (isCanFly() || !isActiveMover())
            return false;
        break;
    case CHECK_MOVEMENT_MOUNTAIN:
        if (isCanFly() || !isActiveMover())
            return false;
        break;
    default:
        break;
    }

//.........这里部分代码省略.........

void WorldSession::HandleLogoutRequestOpcode( WorldPacket & /*recv_data*/ )
{
    DEBUG_LOG( "WORLD: Recvd CMSG_LOGOUT_REQUEST Message, security - %u", GetSecurity() );

    if (ObjectGuid lootGuid = GetPlayer()->GetLootGuid())
        DoLootRelease(lootGuid);

	uint8 reason = 0;
	Player* plr = GetPlayer();
	if (!plr)
	{
		LogoutPlayer(false);
		return;
	}

	if (plr->isInCombat())
		reason = 1;
	else if (plr->m_movementInfo.HasMovementFlag(MovementFlags(MOVEFLAG_FALLING | MOVEFLAG_FALLINGFAR))) // is jumping or falling
		reason = 3;
	else if (plr->duel || plr->HasAura(9454)) // is dueling or frozen by GM via freeze command
		reason = 2;

	if (reason)
    {
        WorldPacket data( SMSG_LOGOUT_RESPONSE, 1+4 ) ;
		data << reason;
        data << uint32(0);
        SendPacket( &data );
        LogoutRequest(0);
        return;
    }

    //instant logout in taverns/cities or on taxi or for admins, gm's, mod's if its enabled in mangosd.conf
    if (GetPlayer()->HasFlag(PLAYER_FLAGS, PLAYER_FLAGS_RESTING) || GetPlayer()->IsTaxiFlying() ||
        GetSecurity() >= (AccountTypes)sWorld.getConfig(CONFIG_UINT32_INSTANT_LOGOUT))
	{
		WorldPacket data(SMSG_LOGOUT_RESPONSE, 1 + 4);
		data << reason;
		data << uint32(16777216);
		SendPacket(&data);
        LogoutPlayer(true);
        return;
    }

    // not set flags if player can't free move to prevent lost state at logout cancel
	if (GetPlayer()->CanFreeMove())
	{
		float height = GetPlayer()->GetMap()->GetHeight(GetPlayer()->GetPositionX(), GetPlayer()->GetPositionY(), GetPlayer()->GetPositionZ());
		if ((GetPlayer()->GetPositionZ() < height + 0.1f) && !(GetPlayer()->IsInWater()))
			GetPlayer()->SetStandState(UNIT_STAND_STATE_SIT);

		GetPlayer()->SetRoot(true);
		GetPlayer()->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_STUNNED);
	}

	WorldPacket data(SMSG_LOGOUT_RESPONSE, 1 + 4);
	data << uint8(0);
    data << uint32(0);
    SendPacket( &data );
    LogoutRequest(time(NULL));
}