TransportMgr Class Reference

#include <TransportMgr.h>

Public Member Functions
void	Unload ()
void	LoadTransportTemplates ()
Transport *	CreateTransport (uint32 entry, ObjectGuid::LowType guid=UI64LIT(0), Map *map=nullptr, uint32 phaseid=0, uint32 phasegroup=0)
void	SpawnContinentTransports ()
void	CreateInstanceTransports (Map *map)
TransportTemplate const *	GetTransportTemplate (uint32 entry) const
TransportAnimation const *	GetTransportAnimInfo (uint32 entry) const

Static Public Member Functions
static TransportMgr *	instance ()

Private Member Functions
	TransportMgr ()
	~TransportMgr ()
	TransportMgr (TransportMgr const &)
TransportMgr &	operator= (TransportMgr const &)
void	GeneratePath (GameObjectTemplate const *goInfo, TransportTemplate *transport)
void	AddPathNodeToTransport (uint32 transportEntry, uint32 timeSeg, TransportAnimationEntry const *node)
void	AddPathRotationToTransport (uint32 transportEntry, uint32 timeSeg, TransportRotationEntry const *node)

Private Attributes
TransportTemplates	_transportTemplates
TransportInstanceMap	_instanceTransports
TransportAnimationContainer	_transportAnimations

Friends
void	DB2Manager::LoadStores (std::string const &, uint32)

Constructor & Destructor Documentation

TransportMgr::TransportMgr ( )

private

{ }

TransportMgr::~TransportMgr ( )

private

{ }

TransportMgr::TransportMgr ( TransportMgr const &  )

private

Member Function Documentation

void TransportMgr::AddPathNodeToTransport ( uint32  transportEntry, uint32  timeSeg, TransportAnimationEntry const *  node  )

private

{
 TransportAnimation& animNode = _transportAnimations[transportEntry];
 if (animNode.TotalTime < timeSeg)
 animNode.TotalTime = timeSeg;

 animNode.Path[timeSeg] = node;
}

void TransportMgr::AddPathRotationToTransport ( uint32  transportEntry, uint32  timeSeg, TransportRotationEntry const *  node  )

inlineprivate

 {
 _transportAnimations[transportEntry].Rotations[timeSeg] = node;
 }

void TransportMgr::CreateInstanceTransports

(

Map *

map

)

{
 TransportInstanceMap::const_iterator mapTransports = _instanceTransports.find(map->GetId());

 // no transports here
 if (mapTransports == _instanceTransports.end() || mapTransports->second.empty())
 return;

 // create transports
 for (std::set<uint32>::const_iterator itr = mapTransports->second.begin(); itr != mapTransports->second.end(); ++itr)
 CreateTransport(*itr, UI64LIT(0), map);
}

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Transport * TransportMgr::CreateTransport	(	uint32	entry,
		ObjectGuid::LowType	guid = UI64LIT(0),
		Map *	map = nullptr,
		uint32	phaseid = 0,
		uint32	phasegroup = 0
	)

{
 // instance case, execute GetGameObjectEntry hook
 if (map)
 {
 // SetZoneScript() is called after adding to map, so fetch the script using map
 if (map->IsDungeon())
 if (InstanceScript* instance = static_cast<InstanceMap*>(map)->GetInstanceScript())
 entry = instance->GetGameObjectEntry(0, entry);

 if (!entry)
 return NULL;
 }

 TransportTemplate const* tInfo = GetTransportTemplate(entry);
 if (!tInfo)
 {
 TC_LOG_ERROR("sql.sql", "Transport %u will not be loaded, `transport_template` missing", entry);
 return NULL;
 }

 // create transport...
 Transport* trans = new Transport();

 // ...at first waypoint
 TaxiPathNodeEntry const* startNode = tInfo->keyFrames.begin()->Node;
 uint32 mapId = startNode->MapID;
 float x = startNode->Loc.X;
 float y = startNode->Loc.Y;
 float z = startNode->Loc.Z;
 float o = tInfo->keyFrames.begin()->InitialOrientation;

 // initialize the gameobject base
 ObjectGuid::LowType guidLow = guid ? guid : sObjectMgr->GetGenerator<HighGuid::Transport>().Generate();
 if (!trans->Create(guidLow, entry, mapId, x, y, z, o, 255))
 {
 delete trans;
 return NULL;
 }

 if (phaseid)
 trans->SetInPhase(phaseid, false, true);

 if (phasegroup)
 for (auto ph : sDB2Manager.GetPhasesForGroup(phasegroup))
 trans->SetInPhase(ph, false, true);

 if (MapEntry const* mapEntry = sMapStore.LookupEntry(mapId))
 {
 if (mapEntry->Instanceable() != tInfo->inInstance)
 {
 TC_LOG_ERROR("entities.transport", "Transport %u (name: %s) attempted creation in instance map (id: %u) but it is not an instanced transport!", entry, trans->GetName().c_str(), mapId);
 delete trans;
 return NULL;
 }
 }

 // use preset map for instances (need to know which instance)
 trans->SetMap(map ? map : sMapMgr->CreateMap(mapId, NULL));
 if (map && map->IsDungeon())
 trans->m_zoneScript = map->ToInstanceMap()->GetInstanceScript();

 // Passengers will be loaded once a player is near
 HashMapHolder<Transport>::Insert(trans);
 trans->GetMap()->AddToMap<Transport>(trans);
 return trans;
}

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void TransportMgr::GeneratePath ( GameObjectTemplate const *  goInfo, TransportTemplate *  transport  )

private

{
 uint32 pathId = goInfo->moTransport.taxiPathID;
 TaxiPathNodeList const& path = sTaxiPathNodesByPath[pathId];
 std::vector<KeyFrame>& keyFrames = transport->keyFrames;
 Movement::PointsArray splinePath, allPoints;
 bool mapChange = false;
 for (size_t i = 0; i < path.size(); ++i)
 allPoints.push_back(G3D::Vector3(path[i]->Loc.X, path[i]->Loc.Y, path[i]->Loc.Z));

 // Add extra points to allow derivative calculations for all path nodes
 allPoints.insert(allPoints.begin(), allPoints.front().lerp(allPoints[1], -0.2f));
 allPoints.push_back(allPoints.back().lerp(allPoints[allPoints.size() - 2], -0.2f));
 allPoints.push_back(allPoints.back().lerp(allPoints[allPoints.size() - 2], -1.0f));

 SplineRawInitializer initer(allPoints);
 TransportSpline orientationSpline;
 orientationSpline.init_spline_custom(initer);
 orientationSpline.initLengths();

 for (size_t i = 0; i < path.size(); ++i)
 {
 if (!mapChange)
 {
 TaxiPathNodeEntry const* node_i = path[i];
 if (i != path.size() - 1 && (node_i->Flags & TAXI_PATH_NODE_FLAG_TELEPORT || node_i->MapID != path[i + 1]->MapID))
 {
 keyFrames.back().Teleport = true;
 mapChange = true;
 }
 else
 {
 KeyFrame k(node_i);
 G3D::Vector3 h;
 orientationSpline.evaluate_derivative(i + 1, 0.0f, h);
 k.InitialOrientation = Position::NormalizeOrientation(std::atan2(h.y, h.x) + float(M_PI));

 keyFrames.push_back(k);
 splinePath.push_back(G3D::Vector3(node_i->Loc.X, node_i->Loc.Y, node_i->Loc.Z));
 transport->mapsUsed.insert(k.Node->MapID);
 }
 }
 else
 mapChange = false;
 }

 if (splinePath.size() >= 2)
 {
 // Remove special catmull-rom spline points
 if (!keyFrames.front().IsStopFrame() && !keyFrames.front().Node->ArrivalEventID && !keyFrames.front().Node->DepartureEventID)
 {
 splinePath.erase(splinePath.begin());
 keyFrames.erase(keyFrames.begin());
 }
 if (!keyFrames.back().IsStopFrame() && !keyFrames.back().Node->ArrivalEventID && !keyFrames.back().Node->DepartureEventID)
 {
 splinePath.pop_back();
 keyFrames.pop_back();
 }
 }

 ASSERT(!keyFrames.empty());

 if (transport->mapsUsed.size() > 1)
 {
 for (std::set<uint32>::const_iterator itr = transport->mapsUsed.begin(); itr != transport->mapsUsed.end(); ++itr)
 ASSERT(!sMapStore.LookupEntry(*itr)->Instanceable());

 transport->inInstance = false;
 }
 else
 transport->inInstance = sMapStore.LookupEntry(*transport->mapsUsed.begin())->Instanceable();

 // last to first is always "teleport", even for closed paths
 keyFrames.back().Teleport = true;

 const float speed = float(goInfo->moTransport.moveSpeed);
 const float accel = float(goInfo->moTransport.accelRate);
 const float accel_dist = 0.5f * speed * speed / accel;

 transport->accelTime = speed / accel;
 transport->accelDist = accel_dist;

 int32 firstStop = -1;
 int32 lastStop = -1;

 // first cell is arrived at by teleportation :S
 keyFrames[0].DistFromPrev = 0;
 keyFrames[0].Index = 1;
 if (keyFrames[0].IsStopFrame())
 {
 firstStop = 0;
 lastStop = 0;
 }

 // find the rest of the distances between key points
 // Every path segment has its own spline
 size_t start = 0;
 for (size_t i = 1; i < keyFrames.size(); ++i)
 {
 if (keyFrames[i - 1].Teleport || i + 1 == keyFrames.size())
 {
 size_t extra = !keyFrames[i - 1].Teleport ? 1 : 0;
 TransportSpline* spline = new TransportSpline();
 spline->init_spline(&splinePath[start], i - start + extra, Movement::SplineBase::ModeCatmullrom);
 spline->initLengths();
 for (size_t j = start; j < i + extra; ++j)
 {
 keyFrames[j].Index = j - start + 1;
 keyFrames[j].DistFromPrev = float(spline->length(j - start, j + 1 - start));
 if (j > 0)
 keyFrames[j - 1].NextDistFromPrev = keyFrames[j].DistFromPrev;
 keyFrames[j].Spline = spline;
 }

 if (keyFrames[i - 1].Teleport)
 {
 keyFrames[i].Index = i - start + 1;
 keyFrames[i].DistFromPrev = 0.0f;
 keyFrames[i - 1].NextDistFromPrev = 0.0f;
 keyFrames[i].Spline = spline;
 }

 start = i;
 }

 if (keyFrames[i].IsStopFrame())
 {
 // remember first stop frame
 if (firstStop == -1)
 firstStop = i;
 lastStop = i;
 }
 }

 keyFrames.back().NextDistFromPrev = keyFrames.front().DistFromPrev;

 if (firstStop == -1 || lastStop == -1)
 firstStop = lastStop = 0;

 // at stopping keyframes, we define distSinceStop == 0,
 // and distUntilStop is to the next stopping keyframe.
 // this is required to properly handle cases of two stopping frames in a row (yes they do exist)
 float tmpDist = 0.0f;
 for (size_t i = 0; i < keyFrames.size(); ++i)
 {
 int32 j = (i + lastStop) % keyFrames.size();
 if (keyFrames[j].IsStopFrame() || j == lastStop)
 tmpDist = 0.0f;
 else
 tmpDist += keyFrames[j].DistFromPrev;
 keyFrames[j].DistSinceStop = tmpDist;
 }

 tmpDist = 0.0f;
 for (int32 i = int32(keyFrames.size()) - 1; i >= 0; i--)
 {
 int32 j = (i + firstStop) % keyFrames.size();
 tmpDist += keyFrames[(j + 1) % keyFrames.size()].DistFromPrev;
 keyFrames[j].DistUntilStop = tmpDist;
 if (keyFrames[j].IsStopFrame() || j == firstStop)
 tmpDist = 0.0f;
 }

 for (size_t i = 0; i < keyFrames.size(); ++i)
 {
 float total_dist = keyFrames[i].DistSinceStop + keyFrames[i].DistUntilStop;
 if (total_dist < 2 * accel_dist) // won't reach full speed
 {
 if (keyFrames[i].DistSinceStop < keyFrames[i].DistUntilStop) // is still accelerating
 {
 // calculate accel+brake time for this short segment
 float segment_time = 2.0f * std::sqrt((keyFrames[i].DistUntilStop + keyFrames[i].DistSinceStop) / accel);
 // substract acceleration time
 keyFrames[i].TimeTo = segment_time - std::sqrt(2 * keyFrames[i].DistSinceStop / accel);
 }
 else // slowing down
 keyFrames[i].TimeTo = std::sqrt(2 * keyFrames[i].DistUntilStop / accel);
 }
 else if (keyFrames[i].DistSinceStop < accel_dist) // still accelerating (but will reach full speed)
 {
 // calculate accel + cruise + brake time for this long segment
 float segment_time = (keyFrames[i].DistUntilStop + keyFrames[i].DistSinceStop) / speed + (speed / accel);
 // substract acceleration time
 keyFrames[i].TimeTo = segment_time - std::sqrt(2 * keyFrames[i].DistSinceStop / accel);
 }
 else if (keyFrames[i].DistUntilStop < accel_dist) // already slowing down (but reached full speed)
 keyFrames[i].TimeTo = std::sqrt(2 * keyFrames[i].DistUntilStop / accel);
 else // at full speed
 keyFrames[i].TimeTo = (keyFrames[i].DistUntilStop / speed) + (0.5f * speed / accel);
 }

 // calculate tFrom times from tTo times
 float segmentTime = 0.0f;
 for (size_t i = 0; i < keyFrames.size(); ++i)
 {
 int32 j = (i + lastStop) % keyFrames.size();
 if (keyFrames[j].IsStopFrame() || j == lastStop)
 segmentTime = keyFrames[j].TimeTo;
 keyFrames[j].TimeFrom = segmentTime - keyFrames[j].TimeTo;
 }

 // calculate path times
 keyFrames[0].ArriveTime = 0;
 float curPathTime = 0.0f;
 if (keyFrames[0].IsStopFrame())
 {
 curPathTime = float(keyFrames[0].Node->Delay);
 keyFrames[0].DepartureTime = uint32(curPathTime * IN_MILLISECONDS);
 }

 for (size_t i = 1; i < keyFrames.size(); ++i)
 {
 curPathTime += keyFrames[i - 1].TimeTo;
 if (keyFrames[i].IsStopFrame())
 {
 keyFrames[i].ArriveTime = uint32(curPathTime * IN_MILLISECONDS);
 keyFrames[i - 1].NextArriveTime = keyFrames[i].ArriveTime;
 curPathTime += float(keyFrames[i].Node->Delay);
 keyFrames[i].DepartureTime = uint32(curPathTime * IN_MILLISECONDS);
 }
 else
 {
 curPathTime -= keyFrames[i].TimeTo;
 keyFrames[i].ArriveTime = uint32(curPathTime * IN_MILLISECONDS);
 keyFrames[i - 1].NextArriveTime = keyFrames[i].ArriveTime;
 keyFrames[i].DepartureTime = keyFrames[i].ArriveTime;
 }
 }

 keyFrames.back().NextArriveTime = keyFrames.back().DepartureTime;

 transport->pathTime = keyFrames.back().DepartureTime;
}

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TransportAnimation const* TransportMgr::GetTransportAnimInfo ( uint32  entry ) const

inline

 {
 TransportAnimationContainer::const_iterator itr = _transportAnimations.find(entry);
 if (itr != _transportAnimations.end())
 return &itr->second;

 return NULL;
 }

TransportTemplate const* TransportMgr::GetTransportTemplate ( uint32  entry ) const

inline

 {
 TransportTemplates::const_iterator itr = _transportTemplates.find(entry);
 if (itr != _transportTemplates.end())
 return &itr->second;
 return NULL;
 }

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TransportMgr * TransportMgr::instance ( )

static

{
 static TransportMgr instance;
 return &instance;
}

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void TransportMgr::LoadTransportTemplates

(

)

{
 uint32 oldMSTime = getMSTime();

 QueryResult result = WorldDatabase.Query("SELECT entry FROM gameobject_template WHERE type = 15 ORDER BY entry ASC");

 if (!result)
 {
 TC_LOG_INFO("server.loading", ">> Loaded 0 transport templates. DB table `gameobject_template` has no transports!");
 return;
 }

 uint32 count = 0;

 do
 {
 Field* fields = result->Fetch();
 uint32 entry = fields[0].GetUInt32();
 GameObjectTemplate const* goInfo = sObjectMgr->GetGameObjectTemplate(entry);
 if (goInfo == NULL)
 {
 TC_LOG_ERROR("sql.sql", "Transport %u has no associated GameObjectTemplate from `gameobject_template` , skipped.", entry);
 continue;
 }

 if (goInfo->moTransport.taxiPathID >= sTaxiPathNodesByPath.size())
 {
 TC_LOG_ERROR("sql.sql", "Transport %u (name: %s) has an invalid path specified in `gameobject_template`.`Data0` (%u) field, skipped.", entry, goInfo->name.c_str(), goInfo->moTransport.taxiPathID);
 continue;
 }

 if (!goInfo->moTransport.taxiPathID)
 continue;

 // paths are generated per template, saves us from generating it again in case of instanced transports
 TransportTemplate& transport = _transportTemplates[entry];
 transport.entry = entry;
 GeneratePath(goInfo, &transport);

 // transports in instance are only on one map
 if (transport.inInstance)
 _instanceTransports[*transport.mapsUsed.begin()].insert(entry);

 ++count;
 } while (result->NextRow());

 TC_LOG_INFO("server.loading", ">> Loaded %u transport templates in %u ms", count, GetMSTimeDiffToNow(oldMSTime));
}

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TransportMgr& TransportMgr::operator= ( TransportMgr const &  )

private

void TransportMgr::SpawnContinentTransports

(

)

{
 if (_transportTemplates.empty())
 return;

 uint32 oldMSTime = getMSTime();

 QueryResult result = WorldDatabase.Query("SELECT guid, entry, phaseid, phasegroup FROM transports");

 uint32 count = 0;
 if (result)
 {
 do
 {
 Field* fields = result->Fetch();
 ObjectGuid::LowType guid = fields[0].GetUInt64();
 uint32 entry = fields[1].GetUInt32();
 uint32 phaseid = fields[2].GetUInt32();
 uint32 phasegroup = fields[3].GetUInt32();

 if (TransportTemplate const* tInfo = GetTransportTemplate(entry))
 if (!tInfo->inInstance)
 if (CreateTransport(entry, guid, nullptr, phaseid, phasegroup))
 ++count;

 } while (result->NextRow());
 }

 TC_LOG_INFO("server.loading", ">> Spawned %u continent transports in %u ms", count, GetMSTimeDiffToNow(oldMSTime));
}

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void TransportMgr::Unload

(

)

{
 _transportTemplates.clear();
}

Friends And Related Function Documentation

void DB2Manager::LoadStores ( std::string const &  , uint32    )

friend

Member Data Documentation

TransportInstanceMap TransportMgr::_instanceTransports

private

TransportAnimationContainer TransportMgr::_transportAnimations

private

TransportTemplates TransportMgr::_transportTemplates

private

---

The documentation for this class was generated from the following files:

• src/server/game/Maps/TransportMgr.h
• src/server/game/Maps/TransportMgr.cpp