public bool Load(EndianBinReader reader, bool readHeader = false)
{
if (readHeader)
{
if (reader.ReadUInt32() != kMAGIC)
{
return(false);
}
_nameTableOffset = reader.ReadUInt32();
_extensionTableOffset = reader.ReadUInt32();
_fileInfoTableOffset = reader.ReadUInt32();
_numFileIdTrees = reader.ReadUInt32();
}
_fileIdOffsets = new uint[_numFileIdTrees];
for (int i = 0; i < _numFileIdTrees; i++)
{
_fileIdOffsets[i] = reader.ReadUInt32();
}
// Read Names
Names = LoadStringBTree(reader, _nameTableOffset);
// Read Extensions
Extensions = LoadStringBTree(reader, _extensionTableOffset);
// Read FileInfo
FileInfos = LoadFileInfoBTree(reader, _fileInfoTableOffset);
// Read FileID:s
int index = 0;
FileIDs = new FileIDBTree[_fileIdOffsets.Length][];
foreach (uint offset in _fileIdOffsets)
{
FileIDBTree[] temp = new FileIDBTree[0];
LoadFileIDBTree(reader, ref temp, offset);
FileIDs[index] = temp;
index++;
}
// Get the file count
for (int i = 0; i < FileIDs.Length; i++)
{
for (int j = 0; j < FileIDs[i].Length; j++)
{
if (FileIDs[i][j].Flag == FileIDBTree.kFILE_FLAG ||
FileIDs[i][j].Flag == FileIDBTree.kFILE_WITHOUT_EXTENSION_FLAG)
{
FileCount++;
}
}
}
return(true);
}
private void LoadFileIDBTree(EndianBinReader reader, ref FileIDBTree[] objects, uint offset)
{
uint childOffset = 0;
uint nodeCount = 0;
uint ptrNodeData = 0;
reader.BaseStream.Seek(offset, System.IO.SeekOrigin.Begin);
byte childCount = reader.ReadByte();
childOffset = reader.Read3BytesUInt32() + offset;
nodeCount = reader.ReadUInt16();
ptrNodeData = (uint)reader.BaseStream.Position;
if (objects == null)
{
objects = new FileIDBTree[0];
}
uint indexer = (uint)objects.Length;
for (int i = 0; i < nodeCount; i++)
{
uint keyCount = (ushort)(Util.ExtractTwelveBits(reader, ptrNodeData, 0) & 0x7FF);
uint nextNodeDataOffset =
(ushort)(Util.ExtractTwelveBits(reader, ptrNodeData, (ushort)(keyCount + 1)));
Array.Resize(ref objects, (int)(objects.Length + keyCount));
for (int j = 0; j < keyCount; j++)
{
uint nodeOffset = Util.ExtractTwelveBits(reader, ptrNodeData, (uint)j + 1);
var tmpOffset = (ptrNodeData + nodeOffset);
objects[indexer] = new FileIDBTree(reader, ref tmpOffset);
indexer++;
}
ptrNodeData += nextNodeDataOffset;
}
}
public static FileIDBTree Parse(EndianBinReader reader, uint offset)
{
FileIDBTree FileID = new FileIDBTree(reader, ref offset);
return(FileID);
}
