public string MakeMockFiles(int numberOfFiles, int fileSize = 350)
{
var packedFileInfo = new IPackedFileInfo[numberOfFiles];
var rng = new Random();
Directory.CreateDirectory("unpackedFiles");
var randomBuffer = new byte[fileSize];
for (var x = 0; x < numberOfFiles; x++)
{
packedFileInfo[x] = new PackedFileInfo();
rng.NextBytes(randomBuffer);
packedFileInfo[x].Name = $"testfile{x}";
packedFileInfo[x].UnpackedFileLocation = $"unpackedFiles\\{packedFileInfo[x].Name}.bin";
File.WriteAllBytes(packedFileInfo[x].UnpackedFileLocation, randomBuffer);
}
var packedFile = "testFile.rpk";
ResourcePackFile.PackFiles(packedFileInfo, packedFile);
Directory.Delete("unpackedFiles", true);
return(packedFile);
}
public async Task UnpackFile(IPackedFileInfo resourcePackFile, string unpackDirectory)
{
var fileData = await ReadFileFromStreamAsync(resourcePackFile);
resourcePackFile.UnpackedFileLocation = $"{unpackDirectory}\\{resourcePackFile.Name}{resourcePackFile.Extension}";
File.WriteAllBytes(resourcePackFile.UnpackedFileLocation, fileData);
}
public IPackedFileInfo[] ReadPackedFiles()
{
ResourcesFileStream.Position = FILE_LIST_OFFSET;
var packedFiles = new IPackedFileInfo[PackedFileCount];
for (var x = 0; x < packedFiles.Length; x++)
{
packedFiles[x] = new PackedFileInfo {
Name = Encoding.UTF8.GetString(ResourcesFileStream.ReadBytes(16)).Split('\0')[0]
?? throw new Exception("Packed file name could not be read."),
Offset = ResourcesFileStream.Read <uint>(),
Size = ResourcesFileStream.Read <uint>(),
};
var currentReadPosition = ResourcesFileStream.Position;
ResourcesFileStream.Position = packedFiles[x].Offset;
packedFiles[x].Extension = ResourcePackType.GetFileType(ResourcesFileStream.ReadBytes(16));
ResourcesFileStream.Position = currentReadPosition;
// Fix reader alignment.
ResourcesFileStream.Read <long>();
}
return(packedFiles);
}
public async Task <byte[]> ReadFileFromStreamAsync(IPackedFileInfo resourcePackFile)
{
ResourcesFileStream.Position = FILE_LIST_OFFSET + _fileListDataSize + resourcePackFile.Offset;
return(await ResourcesFileStream.ReadBytesAsync((int)resourcePackFile.Size));
}
public byte[] ReadFileFromStream(IPackedFileInfo resourcePackFile)
{
return(ReadFileFromStreamAsync(resourcePackFile).ConfigureAwait(false).GetAwaiter().GetResult());
}
