public PakNode(Node parent, string name, PakFile pak, PakDirectory directory)
{
_parent = parent;
_name = name;
_pak = pak;
_pakDirectory = directory;
}
public static PakFile OpenPak(string path)
{
var stream = File.OpenRead(path);
using var reader = new BinaryReader(stream, Encoding.UTF8, true);
// Read the header first.
var magic = reader.ReadBytes(PakMagic.Length);
if (!magic.SequenceEqual(PakMagic))
{
throw new InvalidOperationException("Unrecognized file type.");
}
// Read the pak file version. Not useful right now but future proofing is handy.
var version = reader.ReadInt32();
if (version == 1)
{
// Now we can read the Directory Tree.
var directoryTreeSize = reader.ReadInt64();
var directoryTree = null as PakDirectory;
using (var memStream = new MemoryStream())
{
while (directoryTreeSize > 0)
{
var blockSize = Math.Min((int)directoryTreeSize, 2048);
var bytes = reader.ReadBytes(blockSize);
memStream.Write(bytes, 0, bytes.Length);
directoryTreeSize -= blockSize;
}
memStream.Seek(0, SeekOrigin.Begin);
using (var hReader = new BinaryReader(memStream, Encoding.UTF8))
{
directoryTree = ConstructDirectoryTree(hReader);
}
}
var currPos = stream.Position;
var node = new PakFile(path, stream, directoryTree, currPos);
return(node);
}
throw new InvalidOperationException("Unsupported Pak File Version.");
}
