bool EngineUtils::FindOrLoadAssetsByPath(const FString& Path, TArray<UObject*>& OutAssets)
{
if ( !FPackageName::IsValidLongPackageName(Path, true) )
{
return false;
}
// Convert the package path to a filename with no extension (directory)
const FString FilePath = FPackageName::LongPackageNameToFilename(Path);
// Gather the package files in that directory and subdirectories
TArray<FString> Filenames;
FPackageName::FindPackagesInDirectory(Filenames, FilePath);
// Cull out map files
for (int32 FilenameIdx = Filenames.Num() - 1; FilenameIdx >= 0; --FilenameIdx)
{
const FString Extension = FPaths::GetExtension(Filenames[FilenameIdx], true);
if ( Extension == FPackageName::GetMapPackageExtension() )
{
Filenames.RemoveAt(FilenameIdx);
}
}
// Load packages or find existing ones and fully load them
TSet<UPackage*> Packages;
for (int32 FileIdx = 0; FileIdx < Filenames.Num(); ++FileIdx)
{
const FString& Filename = Filenames[FileIdx];
UPackage* Package = FindPackage(NULL, *FPackageName::FilenameToLongPackageName(Filename));
if (Package)
{
Package->FullyLoad();
}
else
{
Package = LoadPackage(NULL, *Filename, LOAD_None);
}
if (Package)
{
Packages.Add(Package);
}
}
// If any packages were successfully loaded, find all assets that were in the packages and add them to OutAssets
if ( Packages.Num() > 0 )
{
for (FObjectIterator ObjIt; ObjIt; ++ObjIt)
{
if ( Packages.Contains(ObjIt->GetOutermost()) && ObjIt->IsAsset() )
{
OutAssets.Add(*ObjIt);
}
}
}
return true;
}
