void UWorldComposition::OnLevelPostLoad(ULevel* InLevel)
{
UPackage* LevelPackage = Cast<UPackage>(InLevel->GetOutermost());
if (LevelPackage && InLevel->OwningWorld)
{
FWorldTileInfo Info;
UWorld* World = InLevel->OwningWorld;
if (World->WorldComposition)
{
// Assign WorldLevelInfo previously loaded by world composition
FWorldCompositionTile* Tile = World->WorldComposition->FindTileByName(LevelPackage->GetFName());
if (Tile)
{
Info = Tile->Info;
}
}
else
{
#if WITH_EDITOR
// Preserve FWorldTileInfo in case sub-level was loaded in the editor outside of world composition
FString PackageFilename = FPackageName::LongPackageNameToFilename(LevelPackage->GetName(), FPackageName::GetMapPackageExtension());
FWorldTileInfo::Read(PackageFilename, Info);
#endif //WITH_EDITOR
}
const bool bIsDefault = (Info == FWorldTileInfo());
if (!bIsDefault)
{
LevelPackage->WorldTileInfo = new FWorldTileInfo(Info);
}
}
}
/**
* Deletes the asset
*/
void DeleteAsset()
{
if (CreatedAsset)
{
bool bSuccessful = false;
bSuccessful = ObjectTools::DeleteSingleObject(CreatedAsset, false);
//If we failed to delete this object manually clear any references and try again
if (!bSuccessful)
{
//Clear references to the object so we can delete it
AutomationEditorCommonUtils::NullReferencesToObject(CreatedAsset);
bSuccessful = ObjectTools::DeleteSingleObject(CreatedAsset, false);
}
//Delete the package
if (bSuccessful)
{
FString PackageFilename;
if (FPackageName::DoesPackageExist(AssetPackage->GetName(), NULL, &PackageFilename))
{
TArray<UPackage*> PackagesToDelete;
PackagesToDelete.Add(AssetPackage);
// Let the package auto-saver know that it needs to ignore the deleted packages
GUnrealEd->GetPackageAutoSaver().OnPackagesDeleted(PackagesToDelete);
AssetPackage->SetDirtyFlag(false);
// Unload the packages and collect garbage.
PackageTools::UnloadPackages(PackagesToDelete);
IFileManager::Get().Delete(*PackageFilename);
TestStats->NumDeleted++;
UE_LOG(LogEditorAssetAutomationTests, Display, TEXT("Deleted asset %s (%s)"), *AssetName, *Class->GetName());
}
}
else
{
UE_LOG(LogEditorAssetAutomationTests, Error, TEXT("Unable to delete asset: %s (%s)"), *AssetName, *Class->GetName());
}
}
}
void FAssetFixUpRedirectors::DetectReadOnlyPackages(TArray<FRedirectorRefs>& RedirectorsToFix, TArray<UPackage*>& InOutReferencingPackagesToSave) const
{
// For each valid package...
for ( int32 PackageIdx = InOutReferencingPackagesToSave.Num() - 1; PackageIdx >= 0; --PackageIdx )
{
UPackage* Package = InOutReferencingPackagesToSave[PackageIdx];
if ( Package )
{
// Find the package filename
FString Filename;
if ( FPackageName::DoesPackageExist(Package->GetName(), NULL, &Filename) )
{
// If the file is read only
if ( IFileManager::Get().IsReadOnly(*Filename) )
{
FName PackageName = Package->GetFName();
// Find all assets that were referenced by this package to create a redirector when named
for ( auto RedirectorIt = RedirectorsToFix.CreateIterator(); RedirectorIt; ++RedirectorIt )
{
FRedirectorRefs& RedirectorRefs = *RedirectorIt;
if ( RedirectorRefs.ReferencingPackageNames.Contains(PackageName) )
{
RedirectorRefs.FailureReason = FText::Format(LOCTEXT("RedirectorFixupFailed_ReadOnly", "Referencing package {0} was read-only"), FText::FromName(PackageName));
RedirectorRefs.bRedirectorValidForFixup = false;
}
}
// Remove the package from the save list
InOutReferencingPackagesToSave.RemoveAt(PackageIdx);
}
}
}
}
}
int32 UGenerateDistillFileSetsCommandlet::Main( const FString& InParams )
{
// Parse command line.
TArray<FString> Tokens;
TArray<FString> Switches;
UCommandlet::ParseCommandLine(*InParams, Tokens, Switches);
TArray<FString> MapList;
for ( int32 MapIdx = 0; MapIdx < Tokens.Num(); ++MapIdx )
{
const FString& Map = Tokens[MapIdx];
if ( FPackageName::IsShortPackageName(Map) )
{
FString LongPackageName;
if ( FPackageName::SearchForPackageOnDisk(Map, &LongPackageName) )
{
MapList.Add(LongPackageName);
}
else
{
UE_LOG(LogGenerateDistillFileSetsCommandlet, Error, TEXT("Unable to find package for map %s."), *Map);
return 1;
}
}
else
{
MapList.Add(Map);
}
}
if ( MapList.Num() <= 0 )
{
// No map tokens were supplied on the command line, so assume all maps
TArray<FString> AllPackageFilenames;
FEditorFileUtils::FindAllPackageFiles(AllPackageFilenames);
for (int32 PackageIndex = 0; PackageIndex < AllPackageFilenames.Num(); PackageIndex++)
{
const FString& Filename = AllPackageFilenames[PackageIndex];
if (FPaths::GetExtension(Filename, true) == FPackageName::GetMapPackageExtension() )
{
FString LongPackageName;
if ( FPackageName::TryConvertFilenameToLongPackageName(Filename, LongPackageName) )
{
// Warn about maps in "NoShip" or "TestMaps" folders. Those should have been filtered out during the Distill process!
if( !Filename.Contains( "/NoShip/") && !Filename.Contains( "/TestMaps/"))
{
// @todo plugins add support for plugins?
if ( LongPackageName.StartsWith(TEXT("/Game")) )
{
UE_LOG(LogGenerateDistillFileSetsCommandlet, Display, TEXT( "Discovered map package %s..." ), *LongPackageName );
MapList.Add(LongPackageName);
}
}
else
{
UE_LOG(LogGenerateDistillFileSetsCommandlet, Display, TEXT("Skipping map package %s in TestMaps or NoShip folder"), *Filename);
}
}
else
{
UE_LOG(LogGenerateDistillFileSetsCommandlet, Warning, TEXT("Failed to determine package name for map file %s."), *Filename);
}
}
}
}
const FString TemplateFileSwitch = TEXT("Template=");
const FString OutputFileSwitch = TEXT("Output=");
const FString TemplateFolderSwitch = TEXT("TemplateFolder=");
const FString OutputFolderSwitch = TEXT("OutputFolder=");
FString TemplateFilename;
FString OutputFilename;
FString TemplateFolder;
FString OutputFolder;
for (int32 SwitchIdx = 0; SwitchIdx < Switches.Num(); ++SwitchIdx)
{
const FString& Switch = Switches[SwitchIdx];
if ( Switch.StartsWith(TemplateFileSwitch) )
{
Switch.Split(TEXT("="), NULL, &TemplateFilename);
TemplateFilename = TemplateFilename.TrimQuotes();
}
else if ( Switch.StartsWith(OutputFileSwitch) )
{
Switch.Split(TEXT("="), NULL, &OutputFilename);
OutputFilename = OutputFilename.TrimQuotes();
}
else if ( Switch.StartsWith(TemplateFolderSwitch) )
{
Switch.Split(TEXT("="), NULL, &TemplateFolder);
TemplateFolder = TemplateFolder.TrimQuotes();
FPaths::NormalizeFilename(TemplateFolder);
if ( !TemplateFolder.EndsWith(TEXT("/")) )
{
TemplateFolder += TEXT("/");
}
UE_LOG(LogGenerateDistillFileSetsCommandlet, Display, TEXT("Using template folder: "), *TemplateFolder);
}
else if ( Switch.StartsWith(OutputFolderSwitch) )
{
Switch.Split(TEXT("="), NULL, &OutputFolder);
OutputFolder = OutputFolder.TrimQuotes();
FPaths::NormalizeFilename(OutputFolder);
if ( !OutputFolder.EndsWith(TEXT("/")) )
{
OutputFolder += TEXT("/");
}
UE_LOG(LogGenerateDistillFileSetsCommandlet, Display, TEXT("Using output folder: "), *OutputFolder);
}
}
if ( OutputFilename.IsEmpty() )
{
UE_LOG(LogGenerateDistillFileSetsCommandlet, Error, TEXT("You must supply -Output=OutputFilename. These files are relative to the Game/Build directory."));
return 1;
}
if (OutputFolder.IsEmpty())
{
OutputFolder = FPaths::GameDir() + TEXT("Build/");
}
OutputFilename = OutputFolder + OutputFilename;
bool bSimpleTxtOutput = false;
// Load the template file
FString TemplateFileContents;
if (TemplateFilename.IsEmpty())
{
UE_LOG(LogGenerateDistillFileSetsCommandlet, Log, TEXT("No template specified, assuming a simple txt output."));
bSimpleTxtOutput = true;
}
// If no folder was specified, filenames are relative to the build dir.
else
{
if (TemplateFolder.IsEmpty())
{
TemplateFolder = FPaths::GameDir() + TEXT("Build/");
}
TemplateFilename = TemplateFolder + TemplateFilename;
if (!FFileHelper::LoadFileToString(TemplateFileContents, *TemplateFilename))
{
UE_LOG(LogGenerateDistillFileSetsCommandlet, Error, TEXT("Failed to load template file '%s'"), *TemplateFilename);
return 1;
}
}
// Form a full unique package list
TSet<FString> AllPackageNames;
//@todo SLATE: This is a hack to ensure all slate referenced assets get cooked.
// Slate needs to be refactored to properly identify required assets at cook time.
// Simply jamming everything in a given directory into the cook list is error-prone
// on many levels - assets not required getting cooked/shipped; assets not put under
// the correct folder; etc.
{
TArray<FString> UIContentPaths;
if (GConfig->GetArray(TEXT("UI"), TEXT("ContentDirectories"), UIContentPaths, GEditorIni) > 0)
{
for (int32 DirIdx = 0; DirIdx < UIContentPaths.Num(); DirIdx++)
{
FString ContentPath = FPackageName::LongPackageNameToFilename(UIContentPaths[DirIdx]);
TArray<FString> Files;
IFileManager::Get().FindFilesRecursive(Files, *ContentPath, *(FString(TEXT("*")) + FPackageName::GetAssetPackageExtension()), true, false);
for (int32 Index = 0; Index < Files.Num(); Index++)
{
FString StdFile = Files[Index];
FPaths::MakeStandardFilename(StdFile);
StdFile = FPackageName::FilenameToLongPackageName(StdFile);
AllPackageNames.Add(StdFile);
}
}
}
}
// Load all maps
{
for ( auto MapIt = MapList.CreateConstIterator(); MapIt; ++MapIt )
{
const FString& MapPackage = *MapIt;
UE_LOG(LogGenerateDistillFileSetsCommandlet, Display, TEXT( "Loading %s..." ), *MapPackage );
UPackage* Package = LoadPackage( NULL, *MapPackage, LOAD_None );
if( Package != NULL )
{
AllPackageNames.Add(Package->GetName());
UE_LOG(LogGenerateDistillFileSetsCommandlet, Display, TEXT( "Finding content referenced by %s..." ), *MapPackage );
TArray<UObject *> ObjectsInOuter;
GetObjectsWithOuter(NULL, ObjectsInOuter, false);
for (int32 Index = 0; Index < ObjectsInOuter.Num(); Index++)
{
FString OtherName = ObjectsInOuter[Index]->GetOutermost()->GetName();
if (!AllPackageNames.Contains(OtherName))
{
AllPackageNames.Add(OtherName);
UE_LOG(LogGenerateDistillFileSetsCommandlet, Log, TEXT("Package: %s"), *OtherName);
}
}
UE_LOG(LogGenerateDistillFileSetsCommandlet, Display, TEXT( "Collecting garbage..." ) );
CollectGarbage(RF_NoFlags);
}
}
}
// Sort the results to make it easier to diff files. No necessary but useful sometimes.
TArray<FString> SortedPackageNames = AllPackageNames.Array();
SortedPackageNames.Sort();
// For the list of FileSets to include in the distill
FString AllFileSets;
const FString FileSetPathRoot = TEXT("Content");
for (auto PackageIt = SortedPackageNames.CreateConstIterator(); PackageIt; ++PackageIt)
{
const FString& PackageName = *PackageIt;
// @todo plugins add support for plugins?
if ( PackageName.StartsWith(TEXT("/Game")) )
{
const FString PathWithoutRoot( PackageName.Mid( 5 ) );
const FString FileSetPath = FileSetPathRoot + PathWithoutRoot;
if (bSimpleTxtOutput)
{
FString ActualFile;
if (FPackageName::DoesPackageExist(PackageName, NULL, &ActualFile))
{
ActualFile = IFileManager::Get().ConvertToAbsolutePathForExternalAppForRead(*ActualFile);
AllFileSets += FString::Printf(TEXT("%s") LINE_TERMINATOR, *ActualFile);
UE_LOG(LogGenerateDistillFileSetsCommandlet, Log, TEXT("File: %s"), *ActualFile);
}
}
else
{
AllFileSets += FString::Printf(TEXT("<FileSet Path=\"%s.*\" bIsRecursive=\"false\"/>") LINE_TERMINATOR, *FileSetPath);
}
}
}
// Write the output file
FString OutputFileContents;
if (bSimpleTxtOutput)
{
OutputFileContents = AllFileSets;
}
else
{
OutputFileContents = TemplateFileContents.Replace(TEXT("%INSTALLEDCONTENTFILESETS%"), *AllFileSets, ESearchCase::CaseSensitive);
if (FApp::HasGameName())
{
UE_LOG(LogGenerateDistillFileSetsCommandlet, Display, TEXT("Replacing %%GAMENAME%% with (%s)..."), FApp::GetGameName());
OutputFileContents = OutputFileContents.Replace(TEXT("%GAMENAME%"), FApp::GetGameName(), ESearchCase::CaseSensitive);
}
else
{
UE_LOG(LogGenerateDistillFileSetsCommandlet, Warning, TEXT("Failed to replace %%GAMENAME%% since we are running without a game name."));
}
}
if ( !FFileHelper::SaveStringToFile(OutputFileContents, *OutputFilename) )
{
UE_LOG(LogGenerateDistillFileSetsCommandlet, Error, TEXT("Failed to save output file '%s'"), *OutputFilename);
return 1;
}
return 0;
}
void UUnrealEdEngine::OnPackageDirtyStateUpdated( UPackage* Pkg)
{
// The passed in object should never be NULL
check(Pkg);
UPackage* Package = Pkg->GetOutermost();
const FString PackageName = Package->GetName();
// Alert the user if they have modified a package that won't be able to be saved because
// it's already been saved with an engine version that is newer than the current one.
if (!FUObjectThreadContext::Get().IsRoutingPostLoad && Package->IsDirty() && !PackagesCheckedForEngineVersion.Contains(PackageName))
{
EWriteDisallowedWarningState WarningStateToSet = WDWS_WarningUnnecessary;
FString PackageFileName;
if ( FPackageName::DoesPackageExist( Package->GetName(), NULL, &PackageFileName ) )
{
// If a package has never been loaded, a file reader is necessary to find the package file summary for its saved engine version.
FArchive* PackageReader = IFileManager::Get().CreateFileReader( *PackageFileName );
if ( PackageReader )
{
FPackageFileSummary Summary;
*PackageReader << Summary;
if ( Summary.GetFileVersionUE4() > GPackageFileUE4Version || !GEngineVersion.IsCompatibleWith(Summary.CompatibleWithEngineVersion) )
{
WarningStateToSet = WDWS_PendingWarn;
bNeedWarningForPkgEngineVer = true;
}
}
delete PackageReader;
}
PackagesCheckedForEngineVersion.Add( PackageName, WarningStateToSet );
}
// Alert the user if they have modified a package that they do not have sufficient permission to write to disk.
// This can be due to the content being in the "Program Files" folder and the user does not have admin privileges.
if (!FUObjectThreadContext::Get().IsRoutingPostLoad && Package->IsDirty() && !PackagesCheckedForWritePermission.Contains(PackageName))
{
EWriteDisallowedWarningState WarningStateToSet = GetWarningStateForWritePermission(PackageName);
if ( WarningStateToSet == WDWS_PendingWarn )
{
bNeedWarningForWritePermission = true;
}
PackagesCheckedForWritePermission.Add( PackageName, WarningStateToSet );
}
if( Package->IsDirty() )
{
// Find out if we have already asked the user to modify this package
const uint8* PromptState = PackageToNotifyState.Find( Package );
const bool bAlreadyAsked = PromptState != NULL;
// During an autosave, packages are saved in the autosave directory which switches off their dirty flags.
// To preserve the pre-autosave state, any saved package is then remarked as dirty because it wasn't saved in the normal location where it would be picked up by source control.
// Any callback that happens during an autosave is bogus since a package wasn't marked dirty due to a user modification.
const bool bIsAutoSaving = PackageAutoSaver.Get() && PackageAutoSaver->IsAutoSaving();
const UEditorLoadingSavingSettings* Settings = GetDefault<UEditorLoadingSavingSettings>();
if( !bIsAutoSaving &&
!GIsEditorLoadingPackage && // Don't ask if the package was modified as a result of a load
!bAlreadyAsked && // Don't ask if we already asked once!
(Settings->bPromptForCheckoutOnAssetModification || Settings->bAutomaticallyCheckoutOnAssetModification) )
{
// Force source control state to be updated
ISourceControlProvider& SourceControlProvider = ISourceControlModule::Get().GetProvider();
TArray<FString> Files;
Files.Add(SourceControlHelpers::PackageFilename(Package));
SourceControlProvider.Execute(ISourceControlOperation::Create<FUpdateStatus>(), SourceControlHelpers::AbsoluteFilenames(Files), EConcurrency::Asynchronous, FSourceControlOperationComplete::CreateUObject(this, &UUnrealEdEngine::OnSourceControlStateUpdated, TWeakObjectPtr<UPackage>(Package)));
}
}
else
{
// This package was saved, the user should be prompted again if they checked in the package
PackageToNotifyState.Remove( Package );
}
}
void FLevelCollectionModel::SCCDiffAgainstDepot(const FLevelModelList& InList, UEditorEngine* InEditor)
{
// Load the asset registry module
FAssetToolsModule& AssetToolsModule = FModuleManager::GetModuleChecked<FAssetToolsModule>("AssetTools");
ISourceControlProvider& SourceControlProvider = ISourceControlModule::Get().GetProvider();
// Iterate over each selected asset
for (auto It = InList.CreateConstIterator(); It; ++It)
{
ULevel* Level = (*It)->GetLevelObject();
if (Level == NULL)
{
return;
}
UPackage* OriginalPackage = Level->GetOutermost();
FString PackageName = OriginalPackage->GetName();
// Make sure our history is up to date
auto UpdateStatusOperation = ISourceControlOperation::Create<FUpdateStatus>();
UpdateStatusOperation->SetUpdateHistory(true);
SourceControlProvider.Execute(UpdateStatusOperation, OriginalPackage);
// Get the SCC state
FSourceControlStatePtr SourceControlState = SourceControlProvider.GetState(
OriginalPackage, EStateCacheUsage::Use
);
// If the level is in SCC.
if (SourceControlState.IsValid() && SourceControlState->IsSourceControlled())
{
// Get the file name of package
FString RelativeFileName;
if(FPackageName::DoesPackageExist(PackageName, NULL, &RelativeFileName))
{
if (SourceControlState->GetHistorySize() > 0)
{
auto Revision = SourceControlState->GetHistoryItem(0);
check(Revision.IsValid());
// Get the head revision of this package from source control
FString AbsoluteFileName = FPaths::ConvertRelativePathToFull(RelativeFileName);
FString TempFileName;
if (Revision->Get(TempFileName))
{
// Forcibly disable compile on load in case we are loading old blueprints that might try to update/compile
TGuardValue<bool> DisableCompileOnLoad(GForceDisableBlueprintCompileOnLoad, true);
// Try and load that package
FText NotMapReason;
UPackage* OldPackage = LoadPackage(NULL, *TempFileName, LOAD_None);
if(OldPackage != NULL && InEditor->PackageIsAMapFile(*TempFileName, NotMapReason))
{
/* Set the revision information*/
UPackage* Package = OriginalPackage;
FRevisionInfo OldRevision;
OldRevision.Changelist = Revision->GetCheckInIdentifier();
OldRevision.Date = Revision->GetDate();
OldRevision.Revision = Revision->GetRevision();
FRevisionInfo NewRevision;
NewRevision.Revision = TEXT("");
// Dump assets to temp text files
FString OldTextFilename = AssetToolsModule.Get().DumpAssetToTempFile(OldPackage);
FString NewTextFilename = AssetToolsModule.Get().DumpAssetToTempFile(OriginalPackage);
FString DiffCommand = GetDefault<UEditorLoadingSavingSettings>()->TextDiffToolPath.FilePath;
AssetToolsModule.Get().CreateDiffProcess(DiffCommand, OldTextFilename, NewTextFilename);
AssetToolsModule.Get().DiffAssets(OldPackage, OriginalPackage, OldRevision, NewRevision);
}
}
}
}
}
}
}
/**
* Helper function designed to determine if the provided package should be backed up or not.
* The function checks for many conditions, such as if the package is too large to backup,
* if the package has a particular attribute that should prevent it from being backed up (such
* as being marked for PIE-use), if cooking is in progress, etc.
*
* @param InPackage Package which should be checked to see if its valid for backing-up
* @param OutFileName File name of the package on disk if the function determines the package
* already existed
*
* @return true if the package is valid for backing-up; false otherwise
*/
bool FAutoPackageBackup::ShouldBackupPackage( const UPackage& InPackage, FString& OutFilename )
{
// Check various conditions to see if the package is a valid candidate for backing up
bool bShouldBackup =
GIsEditor // Backing up packages only makes sense in the editor
&& !IsRunningCommandlet() // Don't backup saves resulting from commandlets
&& IsPackageBackupEnabled() // Ensure that the package backup is enabled in the first place
&& (InPackage.HasAnyPackageFlags(PKG_PlayInEditor) == false) // Don't back up PIE packages
&& (InPackage.HasAnyPackageFlags(PKG_ContainsScript) == false); // Don't back up script packages
if( bShouldBackup )
{
GWarn->StatusUpdate( -1, -1, NSLOCTEXT("UnrealEd", "PackageBackup_ValidityWarning", "Determining asset backup validity...") );
bShouldBackup = FPackageName::DoesPackageExist( InPackage.GetName(), NULL, &OutFilename ); // Make sure the file already exists (no sense in backing up a new package)
}
// If the package passed the initial backup checks, proceed to check more specific conditions
// that might disqualify the package from being backed up
const int32 FileSizeOfBackup = IFileManager::Get().FileSize( *OutFilename );
if ( bShouldBackup )
{
// Ensure that the size the backup would require is less than that of the maximum allowed
// space for backups
bShouldBackup = FileSizeOfBackup <= GetMaxAllowedBackupSpace();
}
// If all of the prior checks have passed, now see if the package has been backed up
// too recently to be considered for an additional backup
if ( bShouldBackup )
{
// Ensure that the autosave/backup directory exists
const FString& BackupSaveDir = GetBackupDirectory();
IFileManager::Get().MakeDirectory( *BackupSaveDir, 1 );
// Find all of the files in the backup directory
TArray<FString> FilesInBackupDir;
IFileManager::Get().FindFilesRecursive(FilesInBackupDir, *BackupSaveDir, TEXT("*.*"), true, false);
// Extract the base file name and extension from the passed-in package file name
FString ExistingBaseFileName = FPaths::GetBaseFilename(OutFilename);
FString ExistingFileNameExtension = FPaths::GetExtension(OutFilename);
bool bFoundExistingBackup = false;
int32 DirectorySize = 0;
FDateTime LastBackupTimeStamp = FDateTime::MinValue();
TArray<FBackupFileInfo> BackupFileInfoArray;
// Check every file in the backup directory for matches against the passed-in package
// (Additionally keep statistics on all backup files for potential maintenance)
for ( TArray<FString>::TConstIterator FileIter( FilesInBackupDir ); FileIter; ++FileIter )
{
const FString CurBackupFileName = FString( *FileIter );
// Create a new backup file info struct for keeping information about each backup file
const int32 FileInfoIndex = BackupFileInfoArray.AddZeroed();
FBackupFileInfo& CurBackupFileInfo = BackupFileInfoArray[ FileInfoIndex ];
// Record the backup file's name, size, and timestamp
CurBackupFileInfo.FileName = CurBackupFileName;
CurBackupFileInfo.FileSize = IFileManager::Get().FileSize( *CurBackupFileName );
// If we failed to get a timestamp or a valid size, something has happened to the file and it shouldn't be considered
CurBackupFileInfo.FileTimeStamp = IFileManager::Get().GetTimeStamp(*CurBackupFileName);
if (CurBackupFileInfo.FileTimeStamp == FDateTime::MinValue() || CurBackupFileInfo.FileSize == -1)
{
BackupFileInfoArray.RemoveAt( BackupFileInfoArray.Num() - 1 );
continue;
}
// Calculate total directory size by adding the size of this backup file
DirectorySize += CurBackupFileInfo.FileSize;
FString CurBackupBaseFileName = FPaths::GetBaseFilename(CurBackupFileName);
FString CurBackupFileNameExtension = FPaths::GetExtension(CurBackupFileName);
// The base file name of the backup file is going to include an underscore followed by a timestamp, so they must be removed for comparison's sake
CurBackupBaseFileName = CurBackupBaseFileName.Left( CurBackupBaseFileName.Find( TEXT("_"), ESearchCase::CaseSensitive, ESearchDir::FromEnd ) );
// If the base file names and extensions match, we've found a backup
if ( CurBackupBaseFileName == ExistingBaseFileName && CurBackupFileNameExtension == ExistingFileNameExtension )
{
bFoundExistingBackup = true;
// Keep track of the most recent matching time stamp so we can check if the passed-in package
// has been backed up too recently
if ( CurBackupFileInfo.FileTimeStamp > LastBackupTimeStamp )
{
LastBackupTimeStamp = CurBackupFileInfo.FileTimeStamp;
}
}
}
// If there was an existing backup, check to see if it was created too recently to allow another backup
if ( bFoundExistingBackup )
{
// Check the difference in timestamp seconds against the backup interval; if not enough time has elapsed since
// the last backup, we don't want to make another one
if ((FDateTime::UtcNow() - LastBackupTimeStamp).GetTotalSeconds() < GetBackupInterval())
{
bShouldBackup = false;
}
}
// If every other check against the package has succeeded for backup purposes, ensure there is enough directory space
// available in the backup directory, as adding the new backup might use more space than the user allowed for backups.
// If the backup file size + the current directory size exceeds the max allowed space, deleted old backups until there
// is sufficient space. If enough space can't be freed for whatever reason, then no back-up will be created.
if ( bShouldBackup && ( FileSizeOfBackup + DirectorySize > GetMaxAllowedBackupSpace() ) )
{
bShouldBackup = PerformBackupSpaceMaintenance( BackupFileInfoArray, DirectorySize, FileSizeOfBackup );
}
}
return bShouldBackup;
}
int32 UDerivedDataCacheCommandlet::Main( const FString& Params )
{
TArray<FString> Tokens, Switches;
ParseCommandLine(*Params, Tokens, Switches);
bool bFillCache = Switches.Contains("FILL"); // do the equivalent of a "loadpackage -all" to fill the DDC
bool bStartupOnly = Switches.Contains("STARTUPONLY"); // regardless of any other flags, do not iterate packages
// Subsets for parallel processing
uint32 SubsetMod = 0;
uint32 SubsetTarget = MAX_uint32;
FParse::Value(*Params, TEXT("SubsetMod="), SubsetMod);
FParse::Value(*Params, TEXT("SubsetTarget="), SubsetTarget);
bool bDoSubset = SubsetMod > 0 && SubsetTarget < SubsetMod;
double FindProcessedPackagesTime = 0.0;
double GCTime = 0.0;
if (!bStartupOnly && bFillCache)
{
FCoreDelegates::PackageCreatedForLoad.AddUObject(this, &UDerivedDataCacheCommandlet::MaybeMarkPackageAsAlreadyLoaded);
TArray<FString> FilesInPath;
Tokens.Empty(2);
Tokens.Add(FString("*") + FPackageName::GetAssetPackageExtension());
Tokens.Add(FString("*") + FPackageName::GetMapPackageExtension());
uint8 PackageFilter = NORMALIZE_DefaultFlags;
if ( Switches.Contains(TEXT("MAPSONLY")) )
{
PackageFilter |= NORMALIZE_ExcludeContentPackages;
}
if ( !Switches.Contains(TEXT("DEV")) )
{
PackageFilter |= NORMALIZE_ExcludeDeveloperPackages;
}
// assume the first token is the map wildcard/pathname
TArray<FString> Unused;
for ( int32 TokenIndex = 0; TokenIndex < Tokens.Num(); TokenIndex++ )
{
TArray<FString> TokenFiles;
if ( !NormalizePackageNames( Unused, TokenFiles, Tokens[TokenIndex], PackageFilter) )
{
UE_LOG(LogDerivedDataCacheCommandlet, Display, TEXT("No packages found for parameter %i: '%s'"), TokenIndex, *Tokens[TokenIndex]);
continue;
}
FilesInPath += TokenFiles;
}
if ( FilesInPath.Num() == 0 )
{
UE_LOG(LogDerivedDataCacheCommandlet, Warning, TEXT("No files found."));
}
ITargetPlatformManagerModule* TPM = GetTargetPlatformManager();
const TArray<ITargetPlatform*>& Platforms = TPM->GetActiveTargetPlatforms();
for (int32 Index = 0; Index < Platforms.Num(); Index++)
{
TArray<FName> DesiredShaderFormats;
Platforms[Index]->GetShaderFormats(DesiredShaderFormats);
for (int32 FormatIndex = 0; FormatIndex < DesiredShaderFormats.Num(); FormatIndex++)
{
const EShaderPlatform TargetPlatform = ShaderFormatToLegacyShaderPlatform(DesiredShaderFormats[FormatIndex]);
// Kick off global shader compiles for each target platform
GetGlobalShaderMap(TargetPlatform);
}
}
const int32 GCInterval = 100;
int32 NumProcessedSinceLastGC = GCInterval;
bool bLastPackageWasMap = true; // 'true' is to prime the ProcessedPackages list
TSet<FString> ProcessedPackages;
UE_LOG(LogDerivedDataCacheCommandlet, Display, TEXT("%d packages to load..."), FilesInPath.Num());
for( int32 FileIndex = FilesInPath.Num() - 1; ; FileIndex-- )
{
// Keep track of which packages have already been processed along with the map.
if (NumProcessedSinceLastGC >= GCInterval || bLastPackageWasMap || FileIndex == FilesInPath.Num() - 1)
{
const double FindProcessedPackagesStartTime = FPlatformTime::Seconds();
TArray<UObject *> ObjectsInOuter;
GetObjectsWithOuter(NULL, ObjectsInOuter, false);
for( int32 Index = 0; Index < ObjectsInOuter.Num(); Index++ )
{
UPackage* Pkg = Cast<UPackage>(ObjectsInOuter[Index]);
if (!Pkg)
{
continue;
}
FString Filename;
if (FPackageName::DoesPackageExist(Pkg->GetName(), NULL, &Filename))
{
if (!ProcessedPackages.Contains(Filename))
{
ProcessedPackages.Add(Filename);
PackagesToNotReload.Add(Pkg->GetName());
Pkg->PackageFlags |= PKG_ReloadingForCooker;
{
TArray<UObject *> ObjectsInPackage;
GetObjectsWithOuter(Pkg, ObjectsInPackage, true);
for( int32 IndexPackage = 0; IndexPackage < ObjectsInPackage.Num(); IndexPackage++ )
{
ObjectsInPackage[IndexPackage]->CookerWillNeverCookAgain();
}
}
}
}
}
FindProcessedPackagesTime += FPlatformTime::Seconds() - FindProcessedPackagesStartTime;
}
if (NumProcessedSinceLastGC >= GCInterval || FileIndex < 0 || bLastPackageWasMap)
{
const double StartGCTime = FPlatformTime::Seconds();
if (NumProcessedSinceLastGC >= GCInterval || FileIndex < 0)
{
UE_LOG(LogDerivedDataCacheCommandlet, Display, TEXT("GC (Full)..."));
CollectGarbage( RF_Native );
NumProcessedSinceLastGC = 0;
}
else
{
UE_LOG(LogDerivedDataCacheCommandlet, Display, TEXT("GC..."));
CollectGarbage( RF_Native | RF_Standalone );
}
GCTime += FPlatformTime::Seconds() - StartGCTime;
bLastPackageWasMap = false;
}
if (FileIndex < 0)
{
break;
}
const FString& Filename = FilesInPath[FileIndex];
if (ProcessedPackages.Contains(Filename))
{
continue;
}
if (bDoSubset)
{
const FString& PackageName = FPackageName::PackageFromPath(*Filename);
if (FCrc::StrCrc_DEPRECATED(*PackageName.ToUpper()) % SubsetMod != SubsetTarget)
{
continue;
}
}
UE_LOG(LogDerivedDataCacheCommandlet, Display, TEXT("Loading (%d) %s"), FilesInPath.Num() - FileIndex, *Filename );
UPackage* Package = LoadPackage( NULL, *Filename, LOAD_None );
if( Package == NULL )
{
UE_LOG(LogDerivedDataCacheCommandlet, Error, TEXT("Error loading %s!"), *Filename );
}
else
{
bLastPackageWasMap = Package->ContainsMap();
NumProcessedSinceLastGC++;
}
}
}
IConsoleManager::Get().ProcessUserConsoleInput(TEXT("Tex.DerivedDataTimings"), *GWarn, NULL);
UE_LOG(LogDerivedDataCacheCommandlet, Display, TEXT("Waiting for shaders to finish."));
GShaderCompilingManager->FinishAllCompilation();
UE_LOG(LogDerivedDataCacheCommandlet, Display, TEXT("Done waiting for shaders to finish."));
GetDerivedDataCacheRef().WaitForQuiescence(true);
UE_LOG(LogDerivedDataCacheCommandlet, Display, TEXT("%.2lfs spent looking for processed packages, %.2lfs spent on GC."), FindProcessedPackagesTime, GCTime);
return 0;
}
bool FEditorBuildUtils::EditorAutomatedBuildAndSubmit( const FEditorAutomatedBuildSettings& BuildSettings, FText& OutErrorMessages )
{
// Assume the build is successful to start
bool bBuildSuccessful = true;
// Keep a set of packages that should be submitted to source control at the end of a successful build. The build preparation and processing
// will add and remove from the set depending on build settings, errors, etc.
TSet<UPackage*> PackagesToSubmit;
// Perform required preparations for the automated build process
bBuildSuccessful = PrepForAutomatedBuild( BuildSettings, PackagesToSubmit, OutErrorMessages );
// If the preparation went smoothly, attempt the actual map building process
if ( bBuildSuccessful )
{
bBuildSuccessful = EditorBuild( GWorld, EBuildOptions::BuildAllSubmit );
// If the map build failed, log the error
if ( !bBuildSuccessful )
{
LogErrorMessage( NSLOCTEXT("UnrealEd", "AutomatedBuild_Error_BuildFailed", "The map build failed or was canceled."), OutErrorMessages );
}
}
// If any map errors resulted from the build, process them according to the behavior specified in the build settings
if ( bBuildSuccessful && FMessageLog("MapCheck").NumMessages( EMessageSeverity::Warning ) > 0 )
{
bBuildSuccessful = ProcessAutomatedBuildBehavior( BuildSettings.BuildErrorBehavior, NSLOCTEXT("UnrealEd", "AutomatedBuild_Error_MapErrors", "Map errors occurred while building.\n\nAttempt to continue the build?"), OutErrorMessages );
}
// If it's still safe to proceed, attempt to save all of the level packages that have been marked for submission
if ( bBuildSuccessful )
{
UPackage* CurOutermostPkg = GWorld->PersistentLevel->GetOutermost();
FString PackagesThatFailedToSave;
// Try to save the p-level if it should be submitted
if ( PackagesToSubmit.Contains( CurOutermostPkg ) && !FEditorFileUtils::SaveLevel( GWorld->PersistentLevel ) )
{
// If the p-level failed to save, remove it from the set of packages to submit
PackagesThatFailedToSave += FString::Printf( TEXT("%s\n"), *CurOutermostPkg->GetName() );
PackagesToSubmit.Remove( CurOutermostPkg );
}
// Try to save each streaming level (if they should be submitted)
for ( TArray<ULevelStreaming*>::TIterator LevelIter( GWorld->StreamingLevels ); LevelIter; ++LevelIter )
{
ULevelStreaming* CurStreamingLevel = *LevelIter;
if ( CurStreamingLevel != NULL )
{
ULevel* Level = CurStreamingLevel->GetLoadedLevel();
if ( Level != NULL )
{
CurOutermostPkg = Level->GetOutermost();
if ( PackagesToSubmit.Contains( CurOutermostPkg ) && !FEditorFileUtils::SaveLevel( Level ) )
{
// If a save failed, remove the streaming level from the set of packages to submit
PackagesThatFailedToSave += FString::Printf( TEXT("%s\n"), *CurOutermostPkg->GetName() );
PackagesToSubmit.Remove( CurOutermostPkg );
}
}
}
}
// If any packages failed to save, process the behavior specified by the build settings to see how the process should proceed
if ( PackagesThatFailedToSave.Len() > 0 )
{
bBuildSuccessful = ProcessAutomatedBuildBehavior( BuildSettings.FailedToSaveBehavior,
FText::Format( NSLOCTEXT("UnrealEd", "AutomatedBuild_Error_FilesFailedSave", "The following assets failed to save and cannot be submitted:\n\n{0}\n\nAttempt to continue the build?"), FText::FromString(PackagesThatFailedToSave) ),
OutErrorMessages );
}
}
// If still safe to proceed, make sure there are actually packages remaining to submit
if ( bBuildSuccessful )
{
bBuildSuccessful = PackagesToSubmit.Num() > 0;
if ( !bBuildSuccessful )
{
LogErrorMessage( NSLOCTEXT("UnrealEd", "AutomatedBuild_Error_NoValidLevels", "None of the current levels are valid for submission; automated build aborted."), OutErrorMessages );
}
}
// Finally, if everything has gone smoothly, submit the requested packages to source control
if ( bBuildSuccessful )
{
SubmitPackagesForAutomatedBuild( PackagesToSubmit, BuildSettings );
}
// Check if the user requested the editor shutdown at the conclusion of the automated build
if ( BuildSettings.bShutdownEditorOnCompletion )
{
FPlatformMisc::RequestExit( false );
}
return bBuildSuccessful;
}
/**
* Helper method designed to perform the necessary preparations required to complete an automated editor build
*
* @param BuildSettings Build settings that will be used for the editor build
* @param OutPkgsToSubmit Set of packages that need to be saved and submitted after a successful build
* @param OutErrorMessages Errors that resulted from the preparation (may or may not force the build to stop, depending on build settings)
*
* @return true if the preparation was successful and the build should continue; false if the preparation failed and the build should be aborted
*/
bool FEditorBuildUtils::PrepForAutomatedBuild( const FEditorAutomatedBuildSettings& BuildSettings, TSet<UPackage*>& OutPkgsToSubmit, FText& OutErrorMessages )
{
// Assume the preparation is successful to start
bool bBuildSuccessful = true;
OutPkgsToSubmit.Empty();
ISourceControlProvider& SourceControlProvider = ISourceControlModule::Get().GetProvider();
// Source control is required for the automated build, so ensure that SCC support is compiled in and
// that the server is enabled and available for use
if ( !ISourceControlModule::Get().IsEnabled() || !SourceControlProvider.IsAvailable() )
{
bBuildSuccessful = false;
LogErrorMessage( NSLOCTEXT("UnrealEd", "AutomatedBuild_Error_SCCError", "Cannot connect to source control; automated build aborted."), OutErrorMessages );
}
// Empty changelists aren't allowed; abort the build if one wasn't provided
if ( bBuildSuccessful && BuildSettings.ChangeDescription.Len() == 0 )
{
bBuildSuccessful = false;
LogErrorMessage( NSLOCTEXT("UnrealEd", "AutomatedBuild_Error_NoCLDesc", "A changelist description must be provided; automated build aborted."), OutErrorMessages );
}
TArray<UPackage*> PreviouslySavedWorldPackages;
TArray<UPackage*> PackagesToCheckout;
TArray<ULevel*> LevelsToSave;
if ( bBuildSuccessful )
{
TArray<UWorld*> AllWorlds;
FString UnsavedWorlds;
EditorLevelUtils::GetWorlds( GWorld, AllWorlds, true );
// Check all of the worlds that will be built to ensure they have been saved before and have a filename
// associated with them. If they don't, they won't be able to be submitted to source control.
FString CurWorldPkgFileName;
for ( TArray<UWorld*>::TConstIterator WorldIter( AllWorlds ); WorldIter; ++WorldIter )
{
const UWorld* CurWorld = *WorldIter;
check( CurWorld );
UPackage* CurWorldPackage = CurWorld->GetOutermost();
check( CurWorldPackage );
if ( FPackageName::DoesPackageExist( CurWorldPackage->GetName(), NULL, &CurWorldPkgFileName ) )
{
PreviouslySavedWorldPackages.AddUnique( CurWorldPackage );
// Add all packages which have a corresponding file to the set of packages to submit for now. As preparation continues
// any packages that can't be submitted due to some error will be removed.
OutPkgsToSubmit.Add( CurWorldPackage );
}
else
{
UnsavedWorlds += FString::Printf( TEXT("%s\n"), *CurWorldPackage->GetName() );
}
}
// If any of the worlds haven't been saved before, process the build setting's behavior to see if the build
// should proceed or not
if ( UnsavedWorlds.Len() > 0 )
{
bBuildSuccessful = ProcessAutomatedBuildBehavior( BuildSettings.NewMapBehavior,
FText::Format( NSLOCTEXT("UnrealEd", "AutomatedBuild_Error_UnsavedMap", "The following levels have never been saved before and cannot be submitted:\n\n{0}\n\nAttempt to continue the build?"), FText::FromString(UnsavedWorlds) ),
OutErrorMessages );
}
}
// Load the asset tools module
FAssetToolsModule& AssetToolsModule = FModuleManager::GetModuleChecked<FAssetToolsModule>("AssetTools");
if ( bBuildSuccessful )
{
// Update the source control status of any relevant world packages in order to determine which need to be
// checked out, added to the depot, etc.
SourceControlProvider.Execute( ISourceControlOperation::Create<FUpdateStatus>(), SourceControlHelpers::PackageFilenames(PreviouslySavedWorldPackages) );
FString PkgsThatCantBeCheckedOut;
for ( TArray<UPackage*>::TConstIterator PkgIter( PreviouslySavedWorldPackages ); PkgIter; ++PkgIter )
{
UPackage* CurPackage = *PkgIter;
const FString CurPkgName = CurPackage->GetName();
FSourceControlStatePtr SourceControlState = SourceControlProvider.GetState(CurPackage, EStateCacheUsage::ForceUpdate);
if( !SourceControlState.IsValid() ||
(!SourceControlState->IsSourceControlled() &&
!SourceControlState->IsUnknown() &&
!SourceControlState->IsIgnored()))
{
FString CurFilename;
if ( FPackageName::DoesPackageExist( CurPkgName, NULL, &CurFilename ) )
{
if ( IFileManager::Get().IsReadOnly( *CurFilename ) )
{
PkgsThatCantBeCheckedOut += FString::Printf( TEXT("%s\n"), *CurPkgName );
OutPkgsToSubmit.Remove( CurPackage );
}
}
}
else if(SourceControlState->CanCheckout())
{
PackagesToCheckout.Add( CurPackage );
}
else
{
PkgsThatCantBeCheckedOut += FString::Printf( TEXT("%s\n"), *CurPkgName );
OutPkgsToSubmit.Remove( CurPackage );
}
}
// If any of the packages can't be checked out or are read-only, process the build setting's behavior to see if the build
// should proceed or not
if ( PkgsThatCantBeCheckedOut.Len() > 0 )
{
bBuildSuccessful = ProcessAutomatedBuildBehavior( BuildSettings.UnableToCheckoutFilesBehavior,
FText::Format( NSLOCTEXT("UnrealEd", "AutomatedBuild_Error_UnsaveableFiles", "The following assets cannot be checked out of source control (or are read-only) and cannot be submitted:\n\n{0}\n\nAttempt to continue the build?"), FText::FromString(PkgsThatCantBeCheckedOut) ),
OutErrorMessages );
}
}
if ( bBuildSuccessful )
{
// Check out all of the packages from source control that need to be checked out
if ( PackagesToCheckout.Num() > 0 )
{
TArray<FString> PackageFilenames = SourceControlHelpers::PackageFilenames(PackagesToCheckout);
SourceControlProvider.Execute( ISourceControlOperation::Create<FCheckOut>(), PackageFilenames );
// Update the package status of the packages that were just checked out to confirm that they
// were actually checked out correctly
SourceControlProvider.Execute( ISourceControlOperation::Create<FUpdateStatus>(), PackageFilenames );
FString FilesThatFailedCheckout;
for ( TArray<UPackage*>::TConstIterator CheckedOutIter( PackagesToCheckout ); CheckedOutIter; ++CheckedOutIter )
{
UPackage* CurPkg = *CheckedOutIter;
FSourceControlStatePtr SourceControlState = SourceControlProvider.GetState(CurPkg, EStateCacheUsage::ForceUpdate);
// If any of the packages failed to check out, remove them from the set of packages to submit
if ( !SourceControlState.IsValid() || (!SourceControlState->IsCheckedOut() && !SourceControlState->IsAdded() && SourceControlState->IsSourceControlled()) )
{
FilesThatFailedCheckout += FString::Printf( TEXT("%s\n"), *CurPkg->GetName() );
OutPkgsToSubmit.Remove( CurPkg );
}
}
// If any of the packages failed to check out correctly, process the build setting's behavior to see if the build
// should proceed or not
if ( FilesThatFailedCheckout.Len() > 0 )
{
bBuildSuccessful = ProcessAutomatedBuildBehavior( BuildSettings.UnableToCheckoutFilesBehavior,
FText::Format( NSLOCTEXT("UnrealEd", "AutomatedBuild_Error_FilesFailedCheckout", "The following assets failed to checkout of source control and cannot be submitted:\n{0}\n\nAttempt to continue the build?"), FText::FromString(FilesThatFailedCheckout)),
OutErrorMessages );
}
}
}
// Verify there are still actually any packages left to submit. If there aren't, abort the build and warn the user of the situation.
if ( bBuildSuccessful )
{
bBuildSuccessful = OutPkgsToSubmit.Num() > 0;
if ( !bBuildSuccessful )
{
LogErrorMessage( NSLOCTEXT("UnrealEd", "AutomatedBuild_Error_NoValidLevels", "None of the current levels are valid for submission; automated build aborted."), OutErrorMessages );
}
}
// If the build is safe to commence, force all of the levels visible to make sure the build operates correctly
if ( bBuildSuccessful )
{
bool bVisibilityToggled = false;
if ( !FLevelUtils::IsLevelVisible( GWorld->PersistentLevel ) )
{
EditorLevelUtils::SetLevelVisibility( GWorld->PersistentLevel, true, false );
bVisibilityToggled = true;
}
for ( TArray<ULevelStreaming*>::TConstIterator LevelIter( GWorld->StreamingLevels ); LevelIter; ++LevelIter )
{
ULevelStreaming* CurStreamingLevel = *LevelIter;
if ( CurStreamingLevel && !FLevelUtils::IsLevelVisible( CurStreamingLevel ) )
{
CurStreamingLevel->bShouldBeVisibleInEditor = true;
bVisibilityToggled = true;
}
}
if ( bVisibilityToggled )
{
GWorld->FlushLevelStreaming();
}
}
return bBuildSuccessful;
}
void FLODCluster::BuildActor(ULevel* InLevel, const int32 LODIdx, const bool bCreateMeshes)
{
FColor Colours[8] = { FColor::Cyan, FColor::Red, FColor::Green, FColor::Blue, FColor::Yellow, FColor::Magenta, FColor::White, FColor::Black };
// do big size
if (InLevel && InLevel->GetWorld())
{
// create asset using Actors
const FHierarchicalSimplification& LODSetup = InLevel->GetWorld()->GetWorldSettings()->HierarchicalLODSetup[LODIdx];
// Retrieve draw distance for current and next LOD level
const float DrawDistance = LODSetup.DrawDistance;
const int32 LODCount = InLevel->GetWorld()->GetWorldSettings()->HierarchicalLODSetup.Num();
const float NextDrawDistance = (LODIdx < (LODCount - 1)) ? InLevel->GetWorld()->GetWorldSettings()->HierarchicalLODSetup[LODIdx + 1].DrawDistance : 0.0f;
// Where generated assets will be stored
UPackage* AssetsOuter = InLevel->GetOutermost(); // this asset is going to save with map, this means, I'll have to delete with it
if (AssetsOuter)
{
TArray<UStaticMeshComponent*> AllComponents;
for (auto& Actor: Actors)
{
TArray<UStaticMeshComponent*> Components;
if (Actor->IsA<ALODActor>())
{
HierarchicalLODUtils::ExtractStaticMeshComponentsFromLODActor(Actor, Components);
}
else
{
Actor->GetComponents<UStaticMeshComponent>(Components);
}
// TODO: support instanced static meshes
Components.RemoveAll([](UStaticMeshComponent* Val){ return Val->IsA(UInstancedStaticMeshComponent::StaticClass()); });
AllComponents.Append(Components);
}
// it shouldn't even have come here if it didn't have any staticmesh
if (ensure(AllComponents.Num() > 0))
{
// In case we don't have outer generated assets should have same path as LOD level
const FString AssetsPath = AssetsOuter->GetName() + TEXT("/");
AActor* FirstActor = Actors[0];
TArray<UObject*> OutAssets;
FVector OutProxyLocation = FVector::ZeroVector;
UStaticMesh* MainMesh = nullptr;
if (bCreateMeshes)
{
// Generate proxy mesh and proxy material assets
IMeshUtilities& MeshUtilities = FModuleManager::Get().LoadModuleChecked<IMeshUtilities>("MeshUtilities");
// should give unique name, so use level + actor name
const FString PackageName = FString::Printf(TEXT("LOD_%s"), *FirstActor->GetName());
if (MeshUtilities.GetMeshMergingInterface() && LODSetup.bSimplifyMesh)
{
MeshUtilities.CreateProxyMesh(Actors, LODSetup.ProxySetting, AssetsOuter, PackageName, OutAssets, OutProxyLocation);
}
else
{
MeshUtilities.MergeStaticMeshComponents(AllComponents, FirstActor->GetWorld(), LODSetup.MergeSetting, AssetsOuter, PackageName, LODIdx, OutAssets, OutProxyLocation, LODSetup.DrawDistance, true);
}
// we make it private, so it can't be used by outside of map since it's useless, and then remove standalone
for (auto& AssetIter : OutAssets)
{
AssetIter->ClearFlags(RF_Public | RF_Standalone);
}
// set staticmesh
for (auto& Asset : OutAssets)
{
UStaticMesh* StaticMesh = Cast<UStaticMesh>(Asset);
if (StaticMesh)
{
MainMesh = StaticMesh;
}
}
}
if (MainMesh || !bCreateMeshes)
{
UWorld* LevelWorld = Cast<UWorld>(InLevel->GetOuter());
check (LevelWorld);
FTransform Transform;
Transform.SetLocation(OutProxyLocation);
// create LODActors using the current Actors
ALODActor* NewActor = nullptr;
NewActor = LevelWorld->SpawnActor<ALODActor>(ALODActor::StaticClass(), Transform);
NewActor->SubObjects = OutAssets;
NewActor->LODLevel = LODIdx+1;
NewActor->LODDrawDistance = DrawDistance;
NewActor->SetStaticMesh( MainMesh );
// now set as parent
for(auto& Actor : Actors)
{
NewActor->AddSubActor(Actor);
}
// Mark dirty according to whether or not this is a preview build
NewActor->SetIsDirty(!bCreateMeshes);
}
}
}
}
}
