public static VirtDirectory LoadRarc(byte[] data)
{
if (Yay0.IsCompressed(data))
{
data = Yay0.Decompress(data);
}
DhBinaryReader br = new DhBinaryReader(data, DhEndian.Big);
if (br.ReadStr(4) != "RARC")
{
throw new InvalidDataException("No valid RARC signature was found!");
}
List <RarcNode> nodes = new List <RarcNode>();
List <RarcEntry> entries = new List <RarcEntry>();
// read header
// RARC here
br.Skip(4);
br.Skip(4);
var dataOffset = br.ReadU32() + 0x20;
br.Skip(4);
br.Skip(4);
br.Skip(4);
br.Skip(4);
// read infoblock
var NodeCount = br.ReadU32();
var NodeOffset = br.ReadU32() + 0x20;
var EntryCount = br.ReadU32();
var EntryOffset = br.ReadU32() + 0x20;
br.Skip(4);
var StringTableOffset = br.ReadU32() + 0x20;
br.Skip(2);
br.Skip(2);
br.Skip(4);
br.Goto(EntryOffset);
// read entries
for (int i = 0; i < EntryCount; i++)
{
RarcEntry entry = new RarcEntry()
{
Id = br.ReadU16(),
NameHash = br.ReadU16(),
Type = br.ReadU16(),
NameOffset = br.ReadU16(),
DataOffset = br.ReadU32(),
DataLength = br.ReadU32()
};
if (entry.Type == 0x1100)
{
entry.Data = br.ReadAt(dataOffset + entry.DataOffset, (int)entry.DataLength);
}
entry.MemoryPointer = br.ReadU32();
entry.Name = br.ReadStrAt(StringTableOffset + entry.NameOffset);
entries.Add(entry);
}
br.Goto(NodeOffset);
// read nodes
for (int i = 0; i < NodeCount; i++)
{
RarcNode rarcNode = new RarcNode()
{
Id = br.ReadStr(4),
NameOffset = br.ReadU32(),
NameHash = br.ReadU16(),
EntryCount = br.ReadU16(),
FirstEntryIndex = br.ReadU32()
};
rarcNode.Name = br.ReadStrAt(StringTableOffset + rarcNode.NameOffset);
rarcNode.Entries = entries.GetRange((int)rarcNode.FirstEntryIndex, (int)rarcNode.EntryCount);
nodes.Add(rarcNode);
}
List <VirtDirectory> virtDirectories = new List <VirtDirectory>(nodes.Count);
foreach (RarcNode rarcNode in nodes)
{
virtDirectories.Add(new VirtDirectory(rarcNode.Name, Guid.Empty));
}
for (int i = 0; i < nodes.Count; i++)
{
RarcNode rarcNode = nodes[i];
for (int y = 0; y < nodes[i].Entries.Count; y++)
{
if (rarcNode.Entries[y].Name == "." || rarcNode.Entries[y].Name == "..")
{
continue;
}
if (rarcNode.Entries[y].Type == (ushort)NodeType.Directory)
{
var virtDirectory = virtDirectories[(int)rarcNode.Entries[y].DataOffset];
virtDirectory.ParentGuid = virtDirectories[i].Guid;
virtDirectory.Name = rarcNode.Entries[y].Name;
virtDirectories[i].Children.Add(virtDirectory);
}
else
{
VirtFile virtFile = new VirtFile(rarcNode.Entries[y].Name, virtDirectories[i].Guid, rarcNode.Entries[y].Data);
virtDirectories[i].Children.Add(virtFile);
}
}
}
return(virtDirectories.Count > 0 ? virtDirectories[0] : null);
}
