private Directory BuildContentTree(Stream stream, GENESTRT nameTable, PACKTOC toc, PACKTOC.DirectoryEntry dirEnt)
{
Directory dir = new Directory(nameTable.Strings[(int)dirEnt.NameIndex]);
for (uint i = dirEnt.FirstEntryIndex; i < dirEnt.FirstEntryIndex + dirEnt.NumEntries; i++)
{
PACKTOC.Entry entry = toc.Entries[(int)i];
string name = nameTable.Strings[(int)entry.NameIndex];
if (entry is PACKTOC.UncompressedFileEntry uFileEntry)
{
byte[] rawData = new byte[uFileEntry.Size];
stream.Seek((long)uFileEntry.Offset, SeekOrigin.Begin);
stream.Read(rawData);
dir.Children.Add(new File(name, rawData, false, uFileEntry.Size));
}
else if (entry is PACKTOC.DirectoryEntry directoryEntry)
{
dir.Children.Add(this.BuildContentTree(stream, nameTable, toc, directoryEntry));
}
else if (entry is PACKTOC.CompressedFileEntry cFileEntry)
{
byte[] rawData = new byte[cFileEntry.CompressedSize];
stream.Seek((long)cFileEntry.Offset, SeekOrigin.Begin);
stream.Read(rawData);
dir.Children.Add(new File(name, rawData, true, cFileEntry.UncompressedSize));
}
}
return(dir);
}
private void WriteFiles(Stream stream, PACKTOC toc, GENESTRT nameTable)
{
List <Node> nodes = this.FlattenTree(this.RootDirectory);
for (uint i = 0; i < nodes.Count; i++)
{
Node node = nodes[(int)i];
if (node is Directory dir)
{
PACKTOC.DirectoryEntry entry = new PACKTOC.DirectoryEntry();
entry.NameIndex = nameTable.AddString(node.Name);
entry.PackageIndex = 0;
entry.FirstEntryIndex = 0;
entry.NumEntries = 0;
for (uint j = i + 1; j < nodes.Count; j++)
{
Node node2 = nodes[(int)j];
if (dir.Children.Contains(node2))
{
if (entry.FirstEntryIndex == 0)
{
entry.FirstEntryIndex = j;
}
entry.NumEntries++;
}
}
toc.Entries.Add(entry);
}
else if (node is File file)
{
if (file.Compressed)
{
PACKTOC.CompressedFileEntry entry = new PACKTOC.CompressedFileEntry();
entry.NameIndex = nameTable.AddString(node.Name);
entry.PackageIndex = 0;
entry.Offset = 0; // Filled in later.
entry.UncompressedSize = file.UncompressedSize;
entry.CompressedSize = (ulong)file.RawData.Length;
toc.Entries.Add(entry);
}
else
{
PACKTOC.UncompressedFileEntry entry = new PACKTOC.UncompressedFileEntry();
entry.NameIndex = nameTable.AddString(node.Name);
entry.PackageIndex = 0;
entry.Offset = 0; // Filled in later.
entry.Size = (ulong)file.RawData.Length;
toc.Entries.Add(entry);
}
stream.Write(file.RawData);
stream.PadTo(0x200);
}
}
}
