public PKFPackage(IFile file)
{
FileName = file.Name;
root = new PKFDirectory(null, ROOT_DIR);
stream = file.GetStream();
if (stream.ReadASCIINullTerminated(8) != "PACKAGE ")
{
throw new InvalidDataException("File does not have a valid PACKAGE header.");
}
stream.Position += 6; // Unknown int32 + int16
long fileStart = stream.ReadUInt32BE() + stream.Position;
while (stream.Position < fileStart)
{
string pathName, fileName;
uint offset, size, compressedSize;
bool compressed = false;
// Reads file entry
stream.Position += 4; // Hash?
pathName = stream.ReadASCIINullTerminated();
offset = stream.ReadUInt32BE();
size = compressedSize = stream.ReadUInt32BE();
// ZLIB (12 bytes)
// "ZLIB"
// INT32 - Always 1
// INT32 - Max block size? (0x8080)
// Checks if file is compressed
if (size > 12)
{
long nextEntry = stream.Position;
stream.Position = offset;
bool zlib = stream.ReadASCIINullTerminated(4) == "ZLIB";
if (zlib)
{
compressed = Convert.ToBoolean(stream.ReadUInt32BE());
size = stream.ReadUInt32BE(); // Uncompressed size
offset += 12;
compressedSize -= 12;
}
stream.Position = nextEntry;
}
// Adds file
PKFDirectory dir = MakeOrGetDirectory(pathName);
fileName = pathName.Split('\\').Last();
dir.AddFile(new PKFFile(fileName, dir, size, compressed, compressedSize, offset, stream));
}
}
private PKFDirectory MakeOrGetDirectory(string path)
{
string[] breadcrumbs = path.Split('\\');
IDirectory last = root;
IDirectory current;
if (breadcrumbs.Length == 1)
{
return(root);
}
for (var idx = 0; idx < breadcrumbs.Length - 1; idx++)
{
if (!last.TryGetDirectory(breadcrumbs[idx], out current))
{
current = new PKFDirectory(last, breadcrumbs[idx]);
(last as PKFDirectory).AddDir(current as PKFDirectory);
}
last = current;
}
return(last as PKFDirectory);
}