private static UnPackage DoReadPackage(BinaryReader reader)
{
var signature = reader.ReadInt32();
var packageVersion = reader.ReadInt32();
var firstExportOffset = reader.ReadInt32();
var folderNameLength = reader.ReadInt32();
var folderName = reader.ReadBytes(folderNameLength);
var packageFlags = reader.ReadInt32();
var namesCount = reader.ReadInt32();
var namesOffset = reader.ReadInt32();
var exportsCount = reader.ReadInt32();
var exportsOffset = reader.ReadInt32();
var importsCount = reader.ReadInt32();
var importsOffset = reader.ReadInt32();
reader.ReadInt32(); // unknown
var guid = reader.ReadBytes(16);
var generationsCount = reader.ReadInt32();
for (int i = 0; i < generationsCount; i++)
{
reader.ReadBytes(12);
}
var engineVersion = reader.ReadInt32();
var cookerVersion = reader.ReadInt32();
if (engineVersion == 3240)
{
reader.ReadBytes(28);
}
Stream dataStream;
if ((packageFlags & 0x00800000) != 0)
{
var compressionFlag = reader.ReadInt32();
var chunkedStream = new ChunkedStream(reader.BaseStream);
var chunkCount = reader.ReadInt32();
for(int i=0; i<chunkCount; i++)
{
var uncompressedOffset = reader.ReadInt32();
var uncompressedSize = reader.ReadInt32();
var compressedOffset = reader.ReadInt32();
var compressedSize = reader.ReadInt32();
chunkedStream.AddChunk(uncompressedOffset, uncompressedSize, compressedOffset, compressedSize);
}
dataStream = chunkedStream;
}
else
{
dataStream = reader.BaseStream;
}
UnPackage package = new UnPackage(dataStream);
RegisterInstanceReaders(package);
ReadNames(package, dataStream, namesOffset, namesCount);
ReadImports(package, dataStream, importsOffset, importsCount);
ReadExports(package, dataStream, exportsOffset, exportsCount);
return package;
}