public void WriteFilesToStream(EdataPackage pack, Stream s, int version = Version2)
{
int dirSize = GetSubTreeSize(pack.Root, Version2); // TODO verify
s.Seek(dirSize, SeekOrigin.Current);
WriteAllFilesInTree(pack.Root, pack, s, s.Position);
}
public void WriteAllFilesInTree(EdataDir node, EdataPackage pack, Stream s, long fileOffset)
{
foreach (var file in node.Files)
{
var data = pack.GetRawData(file, false);
file.Offset = s.Position - fileOffset;
file.Size = data.Length;
s.Write(data, 0, data.Length);
}
foreach (var child in node.Children)
{
WriteAllFilesInTree(child, pack, s, fileOffset);
}
}
public void Write(EdataPackage package, Stream toStream, int version = 2)
{
if (version != Version1 && version != Version2)
{
throw new NotSupportedException("Requested Edata version not supported");
}
var initStreamPos = toStream.Position;
toStream.Write(EdataPackage.EdataMagic, 0, EdataPackage.EdataMagic.Length);
toStream.Write(BitConverter.GetBytes(version), 0, 4);
// v1 checksum, keep space free if > v1
toStream.Seek(16, SeekOrigin.Current);
// Skip
toStream.Seek(1, SeekOrigin.Current);
// DictionaryOffset ASM seems to say it must be 1037: CMP DWORD PTR DS:[ESI+0x19],0x40D (Compare value at offset 25 is 1037)
toStream.Write(BitConverter.GetBytes(DictionaryOffset), 0, 4);
// DictionaryLength, FileOffset, FileLength
toStream.Seek(12, SeekOrigin.Current);
// unkown, padding, will be kept as 0.
toStream.Seek(8, SeekOrigin.Current);
toStream.Seek(16, SeekOrigin.Current);
NormalizeDirs(package.Root);
package.Root = NormalizeFiles(package.Root);
toStream.Seek(initStreamPos + DictionaryOffset, SeekOrigin.Begin);
WriteFilesToStream(package, toStream);
toStream.Seek(initStreamPos + DictionaryOffset, SeekOrigin.Begin);
WriteDirToStream(package.Root, toStream);
}