ULevel* CreateNewLevel( UWorld* InWorld, bool bMoveSelectedActorsIntoNewLevel, UClass* LevelStreamingClass, const FString& DefaultFilename )
{
// Editor modes cannot be active when any level saving occurs.
GEditorModeTools().ActivateMode( FBuiltinEditorModes::EM_Default );
// Create a new world - so we can 'borrow' its level
UWorld* NewGWorld = UWorld::CreateWorld(EWorldType::None, false );
check(NewGWorld);
// Save the new world to disk.
const bool bNewWorldSaved = FEditorFileUtils::SaveLevel( NewGWorld->PersistentLevel, DefaultFilename );
FString NewPackageName;
if ( bNewWorldSaved )
{
NewPackageName = NewGWorld->GetOutermost()->GetName();
}
// Destroy the new world we created and collect the garbage
NewGWorld->DestroyWorld( false );
CollectGarbage( GARBAGE_COLLECTION_KEEPFLAGS );
// If the new world was saved successfully, import it as a streaming level.
ULevel* NewLevel = NULL;
if ( bNewWorldSaved )
{
NewLevel = AddLevelToWorld( InWorld, *NewPackageName, LevelStreamingClass );
// If we are moving the selected actors to the new level move them now
if ( bMoveSelectedActorsIntoNewLevel )
{
GEditor->MoveSelectedActorsToLevel( NewLevel );
}
// Finally make the new level the current one
InWorld->SetCurrentLevel( NewLevel );
}
// Broadcast the levels have changed (new style)
InWorld->BroadcastLevelsChanged();
return NewLevel;
}
void FWorldTileModel::AddStreamingLevel(UClass* InStreamingClass, const FName& InPackageName)
{
if (LevelCollectionModel.IsReadOnly() || !IsEditable() || IsRootTile())
{
return;
}
UWorld* LevelWorld = CastChecked<UWorld>(GetLevelObject()->GetOuter());
// check uniqueness
if (LevelWorld->StreamingLevels.FindMatch(ULevelStreaming::FPackageNameMatcher(InPackageName)) != INDEX_NONE)
{
return;
}
ULevelStreaming* StreamingLevel = static_cast<ULevelStreaming*>(StaticConstructObject(InStreamingClass, LevelWorld, NAME_None, RF_NoFlags, NULL));
// Associate a package name.
StreamingLevel->PackageName = InPackageName;
// Seed the level's draw color.
StreamingLevel->DrawColor = FColor::MakeRandomColor();
StreamingLevel->LevelTransform = FTransform::Identity;
StreamingLevel->PackageNameToLoad = InPackageName;
// Add the streaming level to level's world
LevelWorld->StreamingLevels.Add(StreamingLevel);
LevelWorld->GetOutermost()->MarkPackageDirty();
}
void ANUTActor::ServerClientPing_Implementation()
{
// If any clients have not loaded the current level, do nothing
bool bNotLoaded = false;
UWorld* CurWorld = GetWorld();
UNetDriver* CurNetDriver = (CurWorld != NULL ? NUTUtil::GetActiveNetDriver(CurWorld) : NULL);
for (auto CurConn : CurNetDriver->ClientConnections)
{
// Based on UNetDriver::IsLevelInitializeForActor
bNotLoaded = !(CurConn->ClientWorldPackageName == CurWorld->GetOutermost()->GetFName() &&
CurConn->ClientHasInitializedLevelFor(this));
// Also trigger if there is no PlayerController yet set for the connection
if (CurConn->OwningActor == NULL)
{
bNotLoaded = true;
}
if (bNotLoaded)
{
break;
}
}
if (!bNotLoaded)
{
NetMulticastPing();
}
}
void AOnlineBeaconHost::NotifyControlMessage(UNetConnection* Connection, uint8 MessageType, class FInBunch& Bunch)
{
if(NetDriver->ServerConnection == NULL)
{
bool bCloseConnection = false;
// We are the server.
#if !(UE_BUILD_SHIPPING && WITH_EDITOR)
UE_LOG(LogNet, Verbose, TEXT("Beacon: Host received: %s"), FNetControlMessageInfo::GetName(MessageType));
#endif
switch (MessageType)
{
case NMT_Hello:
{
UE_LOG(LogNet, Log, TEXT("Beacon Hello"));
uint8 IsLittleEndian;
int32 RemoteMinVer, RemoteVer;
FGuid RemoteGameGUID;
FNetControlMessage<NMT_Hello>::Receive(Bunch, IsLittleEndian, RemoteMinVer, RemoteVer, RemoteGameGUID);
if (!IsNetworkCompatible(Connection->Driver->RequireEngineVersionMatch, RemoteVer, RemoteMinVer))
{
FNetControlMessage<NMT_Upgrade>::Send(Connection, GEngineMinNetVersion, GEngineNetVersion);
bCloseConnection = true;
}
else
{
Connection->NegotiatedVer = FMath::Min(RemoteVer, GEngineNetVersion);
// Make sure the server has the same GameGUID as we do
if( RemoteGameGUID != GetDefault<UGeneralProjectSettings>()->ProjectID )
{
FString ErrorMsg = NSLOCTEXT("NetworkErrors", "ServerHostingDifferentGame", "Incompatible game connection.").ToString();
FNetControlMessage<NMT_Failure>::Send(Connection, ErrorMsg);
bCloseConnection = true;
break;
}
Connection->Challenge = FString::Printf(TEXT("%08X"), FPlatformTime::Cycles());
FNetControlMessage<NMT_BeaconWelcome>::Send(Connection);
Connection->FlushNet();
}
break;
}
case NMT_Netspeed:
{
int32 Rate;
FNetControlMessage<NMT_Netspeed>::Receive(Bunch, Rate);
Connection->CurrentNetSpeed = FMath::Clamp(Rate, 1800, NetDriver->MaxClientRate);
UE_LOG(LogNet, Log, TEXT("Beacon: Client netspeed is %i"), Connection->CurrentNetSpeed);
break;
}
case NMT_BeaconJoin:
{
FString ErrorMsg;
FString BeaconType;
FNetControlMessage<NMT_BeaconJoin>::Receive(Bunch, BeaconType);
UE_LOG(LogNet, Log, TEXT("Beacon Join %s"), *BeaconType);
if (Connection->ClientWorldPackageName == NAME_None)
{
AOnlineBeaconClient* ClientActor = GetClientActor(Connection);
if (ClientActor == NULL)
{
UWorld* World = GetWorld();
Connection->ClientWorldPackageName = World->GetOutermost()->GetFName();
AOnlineBeaconClient* NewClientActor = SpawnBeaconActor();
if (NewClientActor && BeaconType == NewClientActor->GetBeaconType())
{
FNetworkGUID NetGUID = Connection->PackageMap->AssignNewNetGUID(NewClientActor);
NewClientActor->SetNetConnection(Connection);
Connection->OwningActor = NewClientActor;
NewClientActor->Role = ROLE_None;
NewClientActor->SetReplicates(false);
ClientActors.Add(NewClientActor);
FNetControlMessage<NMT_BeaconAssignGUID>::Send(Connection, NetGUID);
}
else
{
ErrorMsg = NSLOCTEXT("NetworkErrors", "BeaconSpawnFailureError", "Join failure, Couldn't spawn beacon.").ToString();
}
}
else
{
ErrorMsg = NSLOCTEXT("NetworkErrors", "BeaconSpawnExistingActorError", "Join failure, existing beacon actor.").ToString();;
}
}
else
{
ErrorMsg = NSLOCTEXT("NetworkErrors", "BeaconSpawnClientWorldPackageNameError", "Join failure, existing ClientWorldPackageName.").ToString();;
}
if (!ErrorMsg.IsEmpty())
{
UE_LOG(LogNet, Log, TEXT("%s"), *ErrorMsg);
FNetControlMessage<NMT_Failure>::Send(Connection, ErrorMsg);
bCloseConnection = true;
}
break;
}
case NMT_BeaconNetGUIDAck:
{
FString BeaconType;
FNetControlMessage<NMT_BeaconNetGUIDAck>::Receive(Bunch, BeaconType);
AOnlineBeaconClient* ClientActor = GetClientActor(Connection);
if (ClientActor && BeaconType == ClientActor->GetBeaconType())
{
ClientActor->Role = ROLE_Authority;
ClientActor->SetReplicates(true);
ClientActor->SetAutonomousProxy(true);
// Send an RPC to the client to open the actor channel and guarantee RPCs will work
ClientActor->ClientOnConnected();
UE_LOG(LogNet, Log, TEXT("Beacon Handshake complete!"));
FOnBeaconConnected* OnBeaconConnectedDelegate = OnBeaconConnectedMapping.Find(FName(*BeaconType));
if (OnBeaconConnectedDelegate)
{
OnBeaconConnectedDelegate->ExecuteIfBound(ClientActor, Connection);
}
}
else
{
// Failed to connect.
FString ErrorMsg = NSLOCTEXT("NetworkErrors", "BeaconSpawnNetGUIDAckError", "Join failure, no actor at NetGUIDAck.").ToString();
UE_LOG(LogNet, Log, TEXT("%s"), *ErrorMsg);
FNetControlMessage<NMT_Failure>::Send(Connection, ErrorMsg);
bCloseConnection = true;
}
break;
}
case NMT_BeaconWelcome:
case NMT_BeaconAssignGUID:
default:
{
FString ErrorMsg = NSLOCTEXT("NetworkErrors", "BeaconSpawnUnexpectedError", "Join failure, unexpected control message.").ToString();
UE_LOG(LogNet, Log, TEXT("%s"), *ErrorMsg);
FNetControlMessage<NMT_Failure>::Send(Connection, ErrorMsg);
bCloseConnection = true;
}
break;
}
if (bCloseConnection)
{
AOnlineBeaconClient* ClientActor = GetClientActor(Connection);
if (ClientActor)
{
RemoveClientActor(ClientActor);
}
Connection->FlushNet(true);
Connection->Close();
}
}
}
void UWorldComposition::Rescan()
{
// Save tiles state, so we can restore it for dirty tiles after rescan is done
FTilesList SavedTileList = Tiles;
Reset();
UWorld* OwningWorld = GetWorld();
FString RootPackageName = GetOutermost()->GetName();
RootPackageName = UWorld::StripPIEPrefixFromPackageName(RootPackageName, OwningWorld->StreamingLevelsPrefix);
if (!FPackageName::DoesPackageExist(RootPackageName))
{
return;
}
WorldRoot = FPaths::GetPath(RootPackageName) + TEXT("/");
// Gather tiles packages from a specified folder
FWorldTilesGatherer Gatherer;
FString WorldRootFilename = FPackageName::LongPackageNameToFilename(WorldRoot);
FPlatformFileManager::Get().GetPlatformFile().IterateDirectoryRecursively(*WorldRootFilename, Gatherer);
// Make sure we have persistent level name without PIE prefix
FString PersistentLevelPackageName = UWorld::StripPIEPrefixFromPackageName(OwningWorld->GetOutermost()->GetName(), OwningWorld->StreamingLevelsPrefix);
// Add found tiles to a world composition, except persistent level
for (const auto& TilePackageName : Gatherer.TilesCollection)
{
// Discard persistent level entry
if (TilePackageName == PersistentLevelPackageName)
{
continue;
}
FWorldTileInfo Info;
FString TileFilename = FPackageName::LongPackageNameToFilename(TilePackageName, FPackageName::GetMapPackageExtension());
if (!FWorldTileInfo::Read(TileFilename, Info))
{
continue;
}
FWorldCompositionTile Tile;
Tile.PackageName = FName(*TilePackageName);
Tile.Info = Info;
// Assign LOD tiles
FString TileShortName = FPackageName::GetShortName(TilePackageName);
TArray<FPackageNameAndLODIndex> TileLODList;
Gatherer.TilesLODCollection.MultiFind(TileShortName, TileLODList);
if (TileLODList.Num())
{
Tile.LODPackageNames.SetNum(WORLDTILE_LOD_MAX_INDEX);
FString TilePath = FPackageName::GetLongPackagePath(TilePackageName) + TEXT("/");
for (const auto& TileLOD : TileLODList)
{
// LOD tiles should be in the same directory or in nested directory
// Basically tile path should be a prefix of a LOD tile path
if (TileLOD.PackageName.StartsWith(TilePath))
{
Tile.LODPackageNames[TileLOD.LODIndex-1] = FName(*FString::Printf(TEXT("%s_LOD%d"), *TileLOD.PackageName, TileLOD.LODIndex));
}
}
// Remove null entries in LOD list
int32 NullEntryIdx;
if (Tile.LODPackageNames.Find(FName(), NullEntryIdx))
{
Tile.LODPackageNames.SetNum(NullEntryIdx);
}
}
Tiles.Add(Tile);
}
#if WITH_EDITOR
RestoreDirtyTilesInfo(SavedTileList);
#endif// WITH_EDITOR
// Create streaming levels for each Tile
PopulateStreamingLevels();
// Calculate absolute positions since they are not serialized to disk
CaclulateTilesAbsolutePositions();
}
void ULevelStreaming::AsyncLevelLoadComplete(const FName& InPackageName, UPackage* InLoadedPackage, EAsyncLoadingResult::Type Result)
{
bHasLoadRequestPending = false;
if( InLoadedPackage )
{
UPackage* LevelPackage = InLoadedPackage;
// Try to find a UWorld object in the level package.
UWorld* World = UWorld::FindWorldInPackage(LevelPackage);
if ( World )
{
ULevel* Level = World->PersistentLevel;
if( Level )
{
check(PendingUnloadLevel == NULL);
SetLoadedLevel(Level);
// Broadcast level loaded event to blueprints
OnLevelLoaded.Broadcast(this);
// Make sure this level will start to render only when it will be fully added to the world
if (LODPackageNames.Num() > 0)
{
Level->bRequireFullVisibilityToRender = true;
// LOD levels should not be visible on server
Level->bClientOnlyVisible = LODPackageNames.Contains(InLoadedPackage->GetFName());
}
// In the editor levels must be in the levels array regardless of whether they are visible or not
if (ensure(Level->OwningWorld) && Level->OwningWorld->WorldType == EWorldType::Editor)
{
Level->OwningWorld->AddLevel(Level);
#if WITH_EDITOR
// We should also at this point, apply the level's editor transform
if (!Level->bAlreadyMovedActors)
{
FLevelUtils::ApplyEditorTransform(this, false);
Level->bAlreadyMovedActors = true;
}
#endif // WITH_EDITOR
}
}
else
{
UE_LOG(LogLevelStreaming, Warning, TEXT("Couldn't find ULevel object in package '%s'"), *InPackageName.ToString() );
}
}
else
{
// There could have been a redirector in the package. Attempt to follow it.
UObjectRedirector* WorldRedirector = nullptr;
UWorld* DestinationWorld = UWorld::FollowWorldRedirectorInPackage(LevelPackage, &WorldRedirector);
if (DestinationWorld)
{
// To follow the world redirector for level streaming...
// 1) Update all globals that refer to the redirector package by name
// 2) Update the PackageNameToLoad to refer to the new package location
// 3) If the package name to load was the same as the destination package name...
// ... update the package name to the new package and let the next RequestLevel try this process again.
// If the package name to load was different...
// ... it means the specified package name was explicit and we will just load from another file.
FName OldDesiredPackageName = InPackageName;
TWeakObjectPtr<UWorld>* OwningWorldPtr = ULevel::StreamedLevelsOwningWorld.Find(OldDesiredPackageName);
UWorld* OwningWorld = OwningWorldPtr ? OwningWorldPtr->Get() : NULL;
ULevel::StreamedLevelsOwningWorld.Remove(OldDesiredPackageName);
// Try again with the destination package to load.
// IMPORTANT: check this BEFORE changing PackageNameToLoad, otherwise you wont know if the package name was supposed to be different.
const bool bLoadingIntoDifferentPackage = (GetWorldAssetPackageFName() != PackageNameToLoad) && (PackageNameToLoad != NAME_None);
// ... now set PackageNameToLoad
PackageNameToLoad = DestinationWorld->GetOutermost()->GetFName();
if ( PackageNameToLoad != OldDesiredPackageName )
{
EWorldType::Type* OldPackageWorldType = UWorld::WorldTypePreLoadMap.Find(OldDesiredPackageName);
if ( OldPackageWorldType )
{
UWorld::WorldTypePreLoadMap.FindOrAdd(PackageNameToLoad) = *OldPackageWorldType;
UWorld::WorldTypePreLoadMap.Remove(OldDesiredPackageName);
}
}
// Now determine if we are loading into the package explicitly or if it is okay to just load the other package.
if ( bLoadingIntoDifferentPackage )
{
// Loading into a new custom package explicitly. Load the destination world directly into the package.
// Detach the linker to load from a new file into the same package.
FLinkerLoad* PackageLinker = FLinkerLoad::FindExistingLinkerForPackage(LevelPackage);
if (PackageLinker)
{
PackageLinker->Detach();
DeleteLoader(PackageLinker);
PackageLinker = nullptr;
}
// Make sure the redirector is not in the way of the new world.
// Pass NULL as the name to make a new unique name and GetTransientPackage() for the outer to remove it from the package.
WorldRedirector->Rename(NULL, GetTransientPackage(), REN_DoNotDirty | REN_DontCreateRedirectors | REN_ForceNoResetLoaders | REN_NonTransactional);
// Change the loaded world's type back to inactive since it won't be used.
DestinationWorld->WorldType = EWorldType::Inactive;
}
else
{
// Loading the requested package normally. Fix up the destination world then update the requested package to the destination.
if (OwningWorld)
{
if (DestinationWorld->PersistentLevel)
{
DestinationWorld->PersistentLevel->OwningWorld = OwningWorld;
}
// In some cases, BSP render data is not created because the OwningWorld was not set correctly.
// Regenerate that render data here
DestinationWorld->PersistentLevel->InvalidateModelSurface();
DestinationWorld->PersistentLevel->CommitModelSurfaces();
}
WorldAsset = DestinationWorld;
}
}
}
}
else if (Result == EAsyncLoadingResult::Canceled)
{
// Cancel level streaming
bHasLoadRequestPending = false;
bShouldBeLoaded = false;
}
else
{
UE_LOG(LogLevelStreaming, Warning, TEXT("Failed to load package '%s'"), *InPackageName.ToString() );
}
// Clean up the world type list and owning world list now that PostLoad has occurred
UWorld::WorldTypePreLoadMap.Remove(InPackageName);
ULevel::StreamedLevelsOwningWorld.Remove(InPackageName);
STAT_ADD_CUSTOMMESSAGE_NAME( STAT_NamedMarker, *(FString( TEXT( "RequestLevelComplete - " ) + InPackageName.ToString() )) );
}
bool ULevelStreaming::RequestLevel(UWorld* PersistentWorld, bool bAllowLevelLoadRequests, bool bBlockOnLoad)
{
// Quit early in case load request already issued
if (bHasLoadRequestPending)
{
return true;
}
// Previous attempts have failed, no reason to try again
if (bFailedToLoad)
{
return false;
}
QUICK_SCOPE_CYCLE_COUNTER(STAT_ULevelStreaming_RequestLevel);
FScopeCycleCounterUObject Context(PersistentWorld);
// Package name we want to load
FName DesiredPackageName = PersistentWorld->IsGameWorld() ? GetLODPackageName() : GetWorldAssetPackageFName();
FName DesiredPackageNameToLoad = PersistentWorld->IsGameWorld() ? GetLODPackageNameToLoad() : PackageNameToLoad;
// Check if currently loaded level is what we want right now
if (LoadedLevel != NULL &&
LoadedLevel->GetOutermost()->GetFName() == DesiredPackageName)
{
return true;
}
// Can not load new level now, there is still level pending unload
if (PendingUnloadLevel != NULL)
{
return false;
}
// Try to find the [to be] loaded package.
UPackage* LevelPackage = (UPackage*) StaticFindObjectFast(UPackage::StaticClass(), NULL, DesiredPackageName, 0, 0, RF_PendingKill);
// Package is already or still loaded.
if (LevelPackage)
{
// Find world object and use its PersistentLevel pointer.
UWorld* World = UWorld::FindWorldInPackage(LevelPackage);
// Check for a redirector. Follow it, if found.
if ( !World )
{
World = UWorld::FollowWorldRedirectorInPackage(LevelPackage);
if ( World )
{
LevelPackage = World->GetOutermost();
}
}
if (World != NULL)
{
#if !(UE_BUILD_SHIPPING || UE_BUILD_TEST)
if (World->PersistentLevel == NULL)
{
UE_LOG(LogLevelStreaming, Log, TEXT("World exists but PersistentLevel doesn't for %s, most likely caused by reference to world of unloaded level and GC setting reference to NULL while keeping world object"), *World->GetOutermost()->GetName());
// print out some debug information...
StaticExec(World, *FString::Printf(TEXT("OBJ REFS CLASS=WORLD NAME=%s shortest"), *World->GetPathName()));
TMap<UObject*,UProperty*> Route = FArchiveTraceRoute::FindShortestRootPath( World, true, GARBAGE_COLLECTION_KEEPFLAGS );
FString ErrorString = FArchiveTraceRoute::PrintRootPath( Route, World );
UE_LOG(LogLevelStreaming, Log, TEXT("%s"), *ErrorString);
// before asserting
checkf(World->PersistentLevel,TEXT("Most likely caused by reference to world of unloaded level and GC setting reference to NULL while keeping world object"));
return false;
}
#endif
if (World->PersistentLevel != LoadedLevel)
{
SetLoadedLevel(World->PersistentLevel);
// Broadcast level loaded event to blueprints
OnLevelLoaded.Broadcast(this);
}
return true;
}
}
EPackageFlags PackageFlags = PKG_None;
int32 PIEInstanceID = INDEX_NONE;
// copy streaming level on demand if we are in PIE
// (the world is already loaded for the editor, just find it and copy it)
if ( PersistentWorld->IsPlayInEditor() )
{
#if WITH_EDITOR
if (PersistentWorld->GetOutermost()->HasAnyPackageFlags(PKG_PlayInEditor))
{
PackageFlags |= PKG_PlayInEditor;
}
PIEInstanceID = PersistentWorld->GetOutermost()->PIEInstanceID;
#endif
const FString NonPrefixedLevelName = UWorld::StripPIEPrefixFromPackageName(DesiredPackageName.ToString(), PersistentWorld->StreamingLevelsPrefix);
UPackage* EditorLevelPackage = FindObjectFast<UPackage>(nullptr, FName(*NonPrefixedLevelName));
bool bShouldDuplicate = EditorLevelPackage && (bBlockOnLoad || EditorLevelPackage->IsDirty() || !GEngine->PreferToStreamLevelsInPIE());
if (bShouldDuplicate)
{
// Do the duplication
UWorld* PIELevelWorld = UWorld::DuplicateWorldForPIE(NonPrefixedLevelName, PersistentWorld);
if (PIELevelWorld)
{
PIELevelWorld->PersistentLevel->bAlreadyMovedActors = true; // As we have duplicated the world, the actors will already have been transformed
check(PendingUnloadLevel == NULL);
SetLoadedLevel(PIELevelWorld->PersistentLevel);
// Broadcast level loaded event to blueprints
{
QUICK_SCOPE_CYCLE_COUNTER(STAT_OnLevelLoaded_Broadcast);
OnLevelLoaded.Broadcast(this);
}
return true;
}
else if (PersistentWorld->WorldComposition == NULL) // In world composition streaming levels are not loaded by default
{
if ( bAllowLevelLoadRequests )
{
UE_LOG(LogLevelStreaming, Log, TEXT("World to duplicate for PIE '%s' not found. Attempting load."), *NonPrefixedLevelName);
}
else
{
UE_LOG(LogLevelStreaming, Warning, TEXT("Unable to duplicate PIE World: '%s'"), *NonPrefixedLevelName);
}
}
}
}
// Async load package if world object couldn't be found and we are allowed to request a load.
if (bAllowLevelLoadRequests)
{
FString PackageNameToLoadFrom = DesiredPackageName.ToString();
if (DesiredPackageNameToLoad != NAME_None)
{
PackageNameToLoadFrom = DesiredPackageNameToLoad.ToString();
}
if (GUseSeekFreeLoading)
{
// Only load localized package if it exists as async package loading doesn't handle errors gracefully.
FString LocalizedPackageName = PackageNameToLoadFrom + LOCALIZED_SEEKFREE_SUFFIX;
FString LocalizedFileName;
if (FPackageName::DoesPackageExist(LocalizedPackageName, NULL, &LocalizedFileName))
{
// Load localized part of level first in case it exists. We don't need to worry about GC or completion
// callback as we always kick off another async IO for the level below.
LoadPackageAsync(*(GetWorldAssetPackageName() + LOCALIZED_SEEKFREE_SUFFIX), nullptr, *LocalizedPackageName, FLoadPackageAsyncDelegate(), PackageFlags, PIEInstanceID);
}
}
if (FPackageName::DoesPackageExist(PackageNameToLoadFrom, NULL, NULL))
{
bHasLoadRequestPending = true;
ULevel::StreamedLevelsOwningWorld.Add(DesiredPackageName, PersistentWorld);
UWorld::WorldTypePreLoadMap.FindOrAdd(DesiredPackageName) = PersistentWorld->WorldType;
// Kick off async load request.
STAT_ADD_CUSTOMMESSAGE_NAME( STAT_NamedMarker, *(FString( TEXT( "RequestLevel - " ) + DesiredPackageName.ToString() )) );
LoadPackageAsync(DesiredPackageName.ToString(), nullptr, *PackageNameToLoadFrom, FLoadPackageAsyncDelegate::CreateUObject(this, &ULevelStreaming::AsyncLevelLoadComplete), PackageFlags, PIEInstanceID);
// streamingServer: server loads everything?
// Editor immediately blocks on load and we also block if background level streaming is disabled.
if (bBlockOnLoad || ShouldBeAlwaysLoaded())
{
// Finish all async loading.
FlushAsyncLoading();
}
}
else
{
UE_LOG(LogStreaming, Error,TEXT("Couldn't find file for package %s."), *PackageNameToLoadFrom);
bFailedToLoad = true;
return false;
}
}
return true;
}
void AOnlineBeaconHost::NotifyControlMessage(UNetConnection* Connection, uint8 MessageType, class FInBunch& Bunch)
{
if(NetDriver->ServerConnection == nullptr)
{
bool bCloseConnection = false;
// We are the server.
#if !(UE_BUILD_SHIPPING && WITH_EDITOR)
UE_LOG(LogBeacon, Verbose, TEXT("%s[%s] Host received: %s"), *GetName(), Connection ? *Connection->GetName() : TEXT("Invalid"), FNetControlMessageInfo::GetName(MessageType));
#endif
switch (MessageType)
{
case NMT_Hello:
{
UE_LOG(LogBeacon, Log, TEXT("Beacon Hello"));
uint8 IsLittleEndian;
uint32 RemoteNetworkVersion = 0;
uint32 LocalNetworkVersion = FNetworkVersion::GetLocalNetworkVersion();
FNetControlMessage<NMT_Hello>::Receive(Bunch, IsLittleEndian, RemoteNetworkVersion);
if (!FNetworkVersion::IsNetworkCompatible(LocalNetworkVersion, RemoteNetworkVersion))
{
UE_LOG(LogBeacon, Log, TEXT("Client not network compatible %s"), *Connection->GetName());
FNetControlMessage<NMT_Upgrade>::Send(Connection, LocalNetworkVersion);
bCloseConnection = true;
}
else
{
Connection->Challenge = FString::Printf(TEXT("%08X"), FPlatformTime::Cycles());
FNetControlMessage<NMT_BeaconWelcome>::Send(Connection);
Connection->FlushNet();
}
break;
}
case NMT_Netspeed:
{
int32 Rate;
FNetControlMessage<NMT_Netspeed>::Receive(Bunch, Rate);
Connection->CurrentNetSpeed = FMath::Clamp(Rate, 1800, NetDriver->MaxClientRate);
UE_LOG(LogBeacon, Log, TEXT("Client netspeed is %i"), Connection->CurrentNetSpeed);
break;
}
case NMT_BeaconJoin:
{
FString ErrorMsg;
FString BeaconType;
FUniqueNetIdRepl UniqueId;
FNetControlMessage<NMT_BeaconJoin>::Receive(Bunch, BeaconType, UniqueId);
UE_LOG(LogBeacon, Log, TEXT("Beacon Join %s %s"), *BeaconType, *UniqueId.ToDebugString());
if (Connection->ClientWorldPackageName == NAME_None)
{
AOnlineBeaconClient* ClientActor = GetClientActor(Connection);
if (ClientActor == nullptr)
{
UWorld* World = GetWorld();
Connection->ClientWorldPackageName = World->GetOutermost()->GetFName();
AOnlineBeaconClient* NewClientActor = nullptr;
FOnBeaconSpawned* OnBeaconSpawnedDelegate = OnBeaconSpawnedMapping.Find(BeaconType);
if (OnBeaconSpawnedDelegate && OnBeaconSpawnedDelegate->IsBound())
{
NewClientActor = OnBeaconSpawnedDelegate->Execute(Connection);
}
if (NewClientActor && BeaconType == NewClientActor->GetBeaconType())
{
NewClientActor->SetConnectionState(EBeaconConnectionState::Pending);
FNetworkGUID NetGUID = Connection->Driver->GuidCache->AssignNewNetGUID_Server(NewClientActor);
NewClientActor->SetNetConnection(Connection);
Connection->PlayerId = UniqueId;
Connection->OwningActor = NewClientActor;
NewClientActor->Role = ROLE_Authority;
NewClientActor->SetReplicates(false);
check(NetDriverName == NetDriver->NetDriverName);
NewClientActor->SetNetDriverName(NetDriverName);
ClientActors.Add(NewClientActor);
FNetControlMessage<NMT_BeaconAssignGUID>::Send(Connection, NetGUID);
}
else
{
ErrorMsg = NSLOCTEXT("NetworkErrors", "BeaconSpawnFailureError", "Join failure, Couldn't spawn beacon.").ToString();
}
}
else
{
ErrorMsg = NSLOCTEXT("NetworkErrors", "BeaconSpawnExistingActorError", "Join failure, existing beacon actor.").ToString();
}
}
else
{
ErrorMsg = NSLOCTEXT("NetworkErrors", "BeaconSpawnClientWorldPackageNameError", "Join failure, existing ClientWorldPackageName.").ToString();
}
if (!ErrorMsg.IsEmpty())
{
UE_LOG(LogBeacon, Log, TEXT("%s: %s"), *Connection->GetName(), *ErrorMsg);
FNetControlMessage<NMT_Failure>::Send(Connection, ErrorMsg);
bCloseConnection = true;
}
break;
}
case NMT_BeaconNetGUIDAck:
{
FString ErrorMsg;
FString BeaconType;
FNetControlMessage<NMT_BeaconNetGUIDAck>::Receive(Bunch, BeaconType);
AOnlineBeaconClient* ClientActor = GetClientActor(Connection);
if (ClientActor && BeaconType == ClientActor->GetBeaconType())
{
FOnBeaconConnected* OnBeaconConnectedDelegate = OnBeaconConnectedMapping.Find(BeaconType);
if (OnBeaconConnectedDelegate)
{
ClientActor->SetReplicates(true);
ClientActor->SetAutonomousProxy(true);
ClientActor->SetConnectionState(EBeaconConnectionState::Open);
// Send an RPC to the client to open the actor channel and guarantee RPCs will work
ClientActor->ClientOnConnected();
UE_LOG(LogBeacon, Log, TEXT("Handshake complete for %s!"), *ClientActor->GetName());
OnBeaconConnectedDelegate->ExecuteIfBound(ClientActor, Connection);
}
else
{
// Failed to connect.
ErrorMsg = NSLOCTEXT("NetworkErrors", "BeaconSpawnNetGUIDAckError1", "Join failure, no host object at NetGUIDAck.").ToString();
}
}
else
{
// Failed to connect.
ErrorMsg = NSLOCTEXT("NetworkErrors", "BeaconSpawnNetGUIDAckError2", "Join failure, no actor at NetGUIDAck.").ToString();
}
if (!ErrorMsg.IsEmpty())
{
UE_LOG(LogBeacon, Log, TEXT("%s: %s"), *Connection->GetName(), *ErrorMsg);
FNetControlMessage<NMT_Failure>::Send(Connection, ErrorMsg);
bCloseConnection = true;
}
break;
}
case NMT_BeaconWelcome:
case NMT_BeaconAssignGUID:
default:
{
FString ErrorMsg = NSLOCTEXT("NetworkErrors", "BeaconSpawnUnexpectedError", "Join failure, unexpected control message.").ToString();
UE_LOG(LogBeacon, Log, TEXT("%s: %s"), *Connection->GetName(), *ErrorMsg);
FNetControlMessage<NMT_Failure>::Send(Connection, ErrorMsg);
bCloseConnection = true;
}
break;
}
if (bCloseConnection)
{
UE_LOG(LogBeacon, Verbose, TEXT("Closing connection %s: %s"), *Connection->GetName(), *Connection->PlayerId.ToDebugString());
AOnlineBeaconClient* ClientActor = GetClientActor(Connection);
if (ClientActor)
{
UE_LOG(LogBeacon, Verbose, TEXT("- BeaconActor: %s %s"), *ClientActor->GetName(), *ClientActor->GetBeaconType());
AOnlineBeaconHostObject* BeaconHostObject = GetHost(ClientActor->GetBeaconType());
if (BeaconHostObject)
{
UE_LOG(LogBeacon, Verbose, TEXT("- HostObject: %s"), *BeaconHostObject->GetName());
BeaconHostObject->NotifyClientDisconnected(ClientActor);
}
RemoveClientActor(ClientActor);
}
Connection->FlushNet(true);
Connection->Close();
UE_LOG(LogBeacon, Verbose, TEXT("--------------------------------"));
}
}
}
