public override void Read(string fileName)
{
using var fs = new FileStream(fileName, FileMode.Open);
using var bs = new BinaryStream(fs, ByteConverter.Big);
string magic = bs.ReadString(4);
if (magic == "4bpg")
{
bs.ByteConverter = ByteConverter.Little;
}
else if (magic == "gpb4")
{
bs.ByteConverter = ByteConverter.Big;
}
else
{
throw new Exception($"Unsupported gpb with magic {magic}.");
}
int headerSize = bs.ReadInt32();
bs.Position = 0x10;
int entryCount = bs.ReadInt32();
int entriesOffset = bs.ReadInt32();
int fileNamesOffset = bs.ReadInt32();
int fileDataOffset = bs.ReadInt32();
for (int i = 0; i < entryCount; i++)
{
bs.Position = entriesOffset + (i * EntrySize);
long entryNameOffset = bs.ReadInt64();
long dataOffset = bs.ReadInt64();
bs.Position += 0x08;
long fileSize = bs.ReadInt64();
var file = new GpbPair();
bs.Position = entryNameOffset;
file.FileName = bs.ReadString(StringCoding.ZeroTerminated);
bs.Position = dataOffset;
file.FileData = bs.ReadBytes((int)fileSize);
Files.Add(file);
}
}
public void AddFilesFromFolder(string folderName)
{
string[] files = Directory.GetFiles(folderName, "*", SearchOption.AllDirectories);
foreach (var file in files)
{
var pair = new GpbPair();
string fileName = file.Replace('\\', '/'); // Replace to any wanted path separator
fileName = fileName.Substring(fileName.IndexOf('/')); // Remove the parent
if (!fileName.StartsWith('/'))
{
fileName = '/' + fileName; // Ensure it starts with '/'
}
pair.FileName = fileName;
pair.FileData = File.ReadAllBytes(file);
Files.Add(pair);
}
}