public void AddFileToFST(string fileName, uint size, string inDirectory = "")
{
var addDir = rootDirectory;
if (inDirectory != string.Empty)
{
addDir = rootDirectory.SearchForDirectory(inDirectory);
}
if (addDir == null)
{
return;
}
var lastEntry = GetFlattenedFST()
.OrderBy(f =>
{
return(f is FSTFileEntry fe ? fe.FileDataOffset : 0);
})
.Last() as FSTFileEntry;
var nameBytes = new UnicodeString(fileName.ToArray());
var entryIndex = addDir.EndEntry + 1;
var entryOffset = lastEntry.FileDataOffset + lastEntry.Size;
var newEntry = new FSTFileEntry(entryIndex, LastNameOffset, entryOffset, size)
{
Name = nameBytes
};
LastNameOffset += (uint)nameBytes.Count;
}
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);
}
}