private async Task readUpkHeader()
{
reader.Seek(0);
Signature = reader.ReadUInt32();
if (Signature == Signatures.EncryptedSignature)
{
await reader.Decrypt();
}
else if (Signature != Signatures.Signature)
{
throw new Exception("File is not a properly formatted UPK file.");
}
Version = reader.ReadUInt16();
Licensee = reader.ReadUInt16();
Size = reader.ReadInt32();
await Group.ReadString(reader);
Flags = reader.ReadUInt32();
NameTableCount = reader.ReadInt32();
NameTableOffset = reader.ReadInt32();
ExportTableCount = reader.ReadInt32();
ExportTableOffset = reader.ReadInt32();
ImportTableCount = reader.ReadInt32();
ImportTableOffset = reader.ReadInt32();
DependsTableOffset = reader.ReadInt32();
Guid = await reader.ReadBytes(16);
GenerationTableCount = reader.ReadInt32();
GenerationTable = await readGenerationTable();
EngineVersion = reader.ReadUInt32();
CookerVersion = reader.ReadUInt32();
CompressionFlags = reader.ReadUInt32();
CompressionTableCount = reader.ReadInt32();
CompressedChunks = await readCompressedChunksTable();
Unknown1 = reader.ReadUInt32();
Unknown2 = reader.ReadUInt32();
}