public void Load()
{
if (Configuration.Verbose)
{
Console.WriteLine($"Extracting TOC.");
}
rootDirectory = new FSTDirectory(0, 0, 0);
var numberOfEntries = ExtractedFile.GetIntAtOffset(TOCNumberEntriesOffset);
LoadFST(rootDirectory, numberOfEntries);
if (Configuration.Verbose)
{
Console.WriteLine($"Finished reading FST.");
}
}
void LoadFST(FSTDirectory root, int endEntryIndex, int firstEntryIndex = 1)
{
int index = firstEntryIndex;
while (index < endEntryIndex)
{
var entryOffset = index * 12;
var folder = ExtractedFile.GetByteAtOffset(entryOffset) == 1;
FSTEntry fileEntry;
uint nameOffset;
if (folder)
{
nameOffset = (ExtractedFile.GetUIntAtOffset(entryOffset) & 0x00FFFFFF);
var parentEntry = ExtractedFile.GetIntAtOffset(entryOffset + 4);
var endDirEntry = ExtractedFile.GetIntAtOffset(entryOffset + 8);
var directory = new FSTDirectory(index, nameOffset, parentEntry);
LoadFST(directory, endDirEntry, index + 1);
fileEntry = directory;
index += endDirEntry - index;
}
else
{
nameOffset = ExtractedFile.GetUIntAtOffset(entryOffset);
var fileOffset = ExtractedFile.GetUIntAtOffset(entryOffset + 4);
var fileSize = ExtractedFile.GetUIntAtOffset(entryOffset + 8);
fileEntry = new FSTFileEntry(index, nameOffset, fileOffset, fileSize);
index++;
if (fileOffset < StartDataOffset)
{
StartDataOffset = fileOffset;
}
}
if (nameOffset > LastNameOffset)
{
LastNameOffset = nameOffset;
}
var fileName = ExtractedFile.GetStringAtOffset(nameOffset + TOCFirstStringOffset);
fileEntry.Name = fileName;
root.Children.Add(fileEntry);
}
}
/// <summary>
/// Get an in order list of FST entries (directories and files) as they would appear in fst.bin. Excludes the root directory.
/// </summary>
/// <param name="root"></param>
/// <returns></returns>
public List <FSTEntry> GetFlattenedFST(FSTDirectory root = null)
{
if (root == null)
{
root = rootDirectory;
}
var fileEntries = new List <FSTEntry>();
foreach (var fe in root.Children)
{
if (fe is FSTFileEntry file)
{
fileEntries.Add(file);
}
else if (fe is FSTDirectory dir)
{
fileEntries.Add(dir);
fileEntries.AddRange(GetFlattenedFST(dir));
}
}
return(fileEntries.OrderBy(f => f.FileEntry).ToList());
}
