Ejemplo n.º 1
0
void WorldSession::HandleMovementOpcodes(WorldPackets::Movement::ClientPlayerMovement& packet)
{
    OpcodeClient opcode = packet.GetOpcode();

    Unit* mover = _player->m_mover;

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

    Player* plrMover = mover->ToPlayer();

    // ignore, waiting processing in WorldSession::HandleMoveWorldportAckOpcode and WorldSession::HandleMoveTeleportAck
    if (plrMover && plrMover->IsBeingTeleported())
        return;

    GetPlayer()->ValidateMovementInfo(&packet.movementInfo);

    MovementInfo& movementInfo = packet.movementInfo;

    // prevent tampered movement data
    if (movementInfo.guid != mover->GetGUID())
    {
        TC_LOG_ERROR("network", "HandleMovementOpcodes: guid error");
        return;
    }

    if (!movementInfo.pos.IsPositionValid())
    {
        TC_LOG_ERROR("network", "HandleMovementOpcodes: Invalid Position");
        return;
    }

    // stop some emotes at player move
    if (plrMover && (plrMover->GetUInt32Value(UNIT_NPC_EMOTESTATE) != 0))
        plrMover->SetUInt32Value(UNIT_NPC_EMOTESTATE, EMOTE_ONESHOT_NONE);

    /* handle special cases */
    if (!movementInfo.transport.guid.IsEmpty())
    {
        // 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)
        {
            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()))
        {
            return;
        }

        // if we boarded a transport, add us to it
        if (plrMover)
        {
            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.ResetTransport();
            }
        }

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

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

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

    uint32 mstime = getMSTime();
    /*----------------------*/
    if (m_clientTimeDelay == 0)
        m_clientTimeDelay = mstime - movementInfo.time;

    /* process position-change */
    movementInfo.time = movementInfo.time + m_clientTimeDelay + MOVEMENT_PACKET_TIME_DELAY;

    movementInfo.guid = mover->GetGUID();
    mover->m_movementInfo = movementInfo;

    // Some vehicles allow the passenger to turn by himself
    if (Vehicle* vehicle = mover->GetVehicle())
    {
        if (VehicleSeatEntry const* seat = vehicle->GetSeatForPassenger(mover))
        {
            if (seat->Flags & VEHICLE_SEAT_FLAG_ALLOW_TURNING)
            {
                if (movementInfo.pos.GetOrientation() != mover->GetOrientation())
                {
                    mover->SetOrientation(movementInfo.pos.GetOrientation());
                    mover->RemoveAurasWithInterruptFlags(AURA_INTERRUPT_FLAG_TURNING);
                }
            }
        }
        return;
    }

    mover->UpdatePosition(movementInfo.pos);

    WorldPackets::Movement::MoveUpdate moveUpdate;
    moveUpdate.movementInfo = &mover->m_movementInfo;
    mover->SendMessageToSet(moveUpdate.Write(), _player);

    if (plrMover)                                            // nothing is charmed, or player charmed
    {
        if (plrMover->IsSitState() && (movementInfo.flags & (MOVEMENTFLAG_MASK_MOVING | MOVEMENTFLAG_MASK_TURNING)))
            plrMover->SetStandState(UNIT_STAND_STATE_STAND);

        plrMover->UpdateFallInformationIfNeed(movementInfo, opcode);

        if (movementInfo.pos.GetPositionZ() < plrMover->GetMap()->GetMinHeight(movementInfo.pos.GetPositionX(), movementInfo.pos.GetPositionY()))
        {
            if (!(plrMover->GetBattleground() && plrMover->GetBattleground()->HandlePlayerUnderMap(_player)))
            {
                // 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 (plrMover->IsAlive())
                {
                    plrMover->SetFlag(PLAYER_FLAGS, PLAYER_FLAGS_IS_OUT_OF_BOUNDS);
                    plrMover->EnvironmentalDamage(DAMAGE_FALL_TO_VOID, GetPlayer()->GetMaxHealth());
                    // player can be alive if GM/etc
                    // change the death state to CORPSE to prevent the death timer from
                    // starting in the next player update
                    if (!plrMover->IsAlive())
                        plrMover->KillPlayer();
                }
            }
        }
    }
}
Ejemplo n.º 2
0
void WorldSession::HandleMovementOpcodes(WorldPackets::Movement::ClientPlayerMovement& packet)
{
    HandleMovementOpcode(packet.GetOpcode(), packet.Status);
}