/// <summary>
/// 解压到路径。
/// </summary>
/// <param name="InFile">文件路径</param>
/// <param name="OutDirectory">解压路径</param>
public static void Unpack(string InFile, string OutDirectory)
{
using (FileStream pak = File.OpenRead(InFile))
{
if (PakUtils.CheckMagic(pak, "GsPack4 abc"))
{
if (OutDirectory == null || OutDirectory.Length == 0)
{
OutDirectory = Path.GetFileName(InFile);
}
Directory.CreateDirectory(OutDirectory);
Pak_Header pak_header = PakUtils.ToStruct <Pak_Header>(pak);
pak.Seek(pak_header.index_offset, SeekOrigin.Begin);
byte[] pak_compress = new byte[pak_header.index_length];
pak.Read(pak_compress, 0, pak_compress.Length);
byte[] pak_decompress = PakUtils.LZSS.Decompress(pak_compress);
Pak_Entry[] pak_entries = PakUtils.ToStructArray <Pak_Entry>(pak_decompress);
for (int i = 0; i < pak_entries.Length; i++)
{
Pak_Entry pak_entry = pak_entries[i];
pak.Seek(pak_header.data_offset, SeekOrigin.Begin);
pak.Seek(pak_entry.offset, SeekOrigin.Current);
byte[] data = new byte[pak_entry.length];
pak.Read(data, 0, (int)pak_entry.length);
using (MemoryStream data_stream = new MemoryStream(data))
{
if (PakUtils.CheckMagic(data_stream, "Scw4.x"))
{
UnpackScw4(OutDirectory, pak_entry, data_stream);
}
else
{
// TODO 处理图片文件
}
}
}
}
else
{
throw new PakException.MagicMissMatching(Path.GetFileName(InFile));
}
}
}
private static void UnpackScw4(string OutDirectory, Pak_Entry pak_entry, MemoryStream data_stream)
{
//解压缩
Scw_Header scw4_header = PakUtils.ToStruct <Scw_Header>(data_stream);
byte[] scw_compress = new byte[scw4_header.comprlen];
data_stream.Read(scw_compress, 0, scw_compress.Length);
if (scw4_header.is_compr == -1)
{
for (int i = 0; i < scw_compress.Length; i++)
{
scw_compress[i] ^= Convert.ToByte(i & 0xFF);
}
}
byte[] scw_decompress = PakUtils.LZSS.Decompress(scw_compress);
using (MemoryStream decompress_stream = new MemoryStream(scw_decompress))
{
string directory = Path.Combine(OutDirectory, pak_entry.name);
Directory.CreateDirectory(directory);
int size = Marshal.SizeOf(typeof(Scw4_Entry));
byte[] instruction_table = new byte[scw4_header.instruction_table_entries * size];
decompress_stream.Read(instruction_table, 0, instruction_table.Length);
File.WriteAllBytes(Path.Combine(directory, "instruction_table.bin"), instruction_table);
Scw4_Entry[] instruction_entries = PakUtils.ToStructArray <Scw4_Entry>(instruction_table);
byte[] script_table = new byte[scw4_header.string_table_entries * size];
decompress_stream.Read(script_table, 0, script_table.Length);
Scw4_Entry[] script_entries = PakUtils.ToStructArray <Scw4_Entry>(script_table);
byte[] method_table = new byte[scw4_header.unknown_table_entries * size];
decompress_stream.Read(method_table, 0, method_table.Length);
File.WriteAllBytes(Path.Combine(directory, "method_table.bin"), method_table);
Scw4_Entry[] method_entries = PakUtils.ToStructArray <Scw4_Entry>(method_table);
using (BinaryWriter writer = new BinaryWriter(File.Open(Path.Combine(directory, "instruction.bin"), FileMode.Create)))
{
foreach (Scw4_Entry scw_entry in instruction_entries)
{
byte[] data = new byte[scw_entry.length];
decompress_stream.Read(data, 0, data.Length);
writer.Write(data);
}
}
using (StreamWriter writer = new StreamWriter(Path.Combine(OutDirectory, pak_entry.name + ".txt"), false, Encoding.GetEncoding("GB2312")))
//using (StreamWriter writer = new StreamWriter(Path.Combine(directory, "script.txt"), false, Encoding.GetEncoding("GB2312")))
{
foreach (Scw4_Entry scw_entry in script_entries)
{
byte[] data = new byte[scw_entry.length];
decompress_stream.Read(data, 0, data.Length);
string text = Encoding.GetEncoding("Shift_JIS").GetString(data);
writer.WriteLine($":{text}");
writer.WriteLine($":{text}");
writer.WriteLine();
}
}
using (BinaryWriter writer = new BinaryWriter(File.Open(Path.Combine(directory, "method.bin"), FileMode.Create)))
{
long length = decompress_stream.Length - decompress_stream.Position;
byte[] data = new byte[length];
decompress_stream.Read(data, 0, data.Length);
writer.Write(data);
}
}
}
/// <summary>
/// 压缩到路径。
/// </summary>
/// <param name="InDirectory">压缩路径</param>
/// <param name="OutFile">文件路径</param>
public static void Pack(string InDirectory, string OutFile)
{
string[] directories = Directory.GetDirectories(InDirectory);
string[] files = Directory.GetFiles(InDirectory);
//文件夹下存放Scw
Pak_Header pak_header = new Pak_Header();
MemoryStream pak_index = new MemoryStream();
MemoryStream pak_data = new MemoryStream();
foreach (string file in files)
{
// TODO 图片处理
}
foreach (string directory in directories)
{
Pak_Entry pak_entry = new Pak_Entry();
Scw_Header scw_header = new Scw_Header();
MemoryStream header_decompress = new MemoryStream();
MemoryStream data_decompress = new MemoryStream();
//先写数据区
byte[] instruction = File.ReadAllBytes(Path.Combine(directory, "instruction.bin"));
data_decompress.Write(instruction, 0, instruction.Length);
byte[] instruction_entries = File.ReadAllBytes(Path.Combine(directory, "instruction_table.bin"));
header_decompress.Write(instruction_entries, 0, instruction_entries.Length);
long position = data_decompress.Position;
StreamReader reader = new StreamReader(directory + ".txt", Encoding.GetEncoding("GB2312"));
int script_count = 0;
while (!reader.EndOfStream)
{
//跳过第一行
reader.ReadLine();
string text = reader.ReadLine().TrimStart(':').TrimEnd(' ').TrimEnd((char)0x20);
//跳过分割
reader.ReadLine();
byte[] data = Encoding.GetEncoding("gb2312").GetBytes(text);
if (data.Last() != 0)
{
data = data.Concat(new byte[] { 0 }).ToArray();
}
Scw4_Entry entry = new Scw4_Entry()
{
offset = (uint)(data_decompress.Position - position), length = (uint)data.Length
};
data_decompress.Write(data, 0, data.Length);
byte[] header = PakUtils.ToByteArray(entry);
header_decompress.Write(header, 0, header.Length);
script_count++;
}
long script_length = data_decompress.Position - position;
byte[] method = File.ReadAllBytes(Path.Combine(directory, "method.bin"));
data_decompress.Write(method, 0, method.Length);
byte[] method_entries = File.ReadAllBytes(Path.Combine(directory, "method_table.bin"));
header_decompress.Write(method_entries, 0, method_entries.Length);
byte[] scw_decompress = header_decompress.ToArray().Concat(data_decompress.ToArray()).ToArray();
byte[] scw_compress = PakUtils.LZSS.Compress(scw_decompress);
for (int i = 0; i < scw_compress.Length; i++)
{
scw_compress[i] ^= Convert.ToByte(i & 0xFF);
}
scw_header.magic = "Scw4.x";
scw_header.major_version = 1024;
scw_header.minor_version = 263;
scw_header.always_1 = 1;
scw_header.is_compr = -1;
scw_header.comprlen = scw_compress.Length;
scw_header.uncomprlen = scw_decompress.Length;
scw_header.instruction_table_entries = instruction_entries.Length / Marshal.SizeOf(typeof(Scw4_Entry));
scw_header.instruction_data_length = instruction.Length;
scw_header.string_table_entries = script_count;
scw_header.string_data_length = (int)script_length;
scw_header.unknown_table_entries = method_entries.Length / Marshal.SizeOf(typeof(Scw4_Entry));
scw_header.unknown_data_length = method.Length;
scw_header.pad = "";
byte[] scw = PakUtils.ToByteArray(scw_header).Concat(scw_compress).ToArray();
pak_entry.name = Path.GetFileName(directory);
pak_entry.length = (uint)scw.Length;
pak_entry.offset = (uint)pak_data.Position;
pak_data.Write(scw, 0, scw.Length);
byte[] temp = PakUtils.ToByteArray(pak_entry);
pak_index.Write(temp, 0, temp.Length);
}
//压缩索引
byte[] index = PakUtils.LZSS.Compress(pak_index.ToArray());
var z = PakUtils.LZSS.Decompress(index);
byte[] pad = new byte[1976];
pak_header.magic = "GsPack4 abc";
pak_header.description = "GsPackFile4";
pak_header.major_version = 4;
pak_header.minor_version = 0;
pak_header.decode_key = 0;
pak_header.data_offset = (uint)(Marshal.SizeOf(typeof(Pak_Header)) + pad.Length);
pak_header.index_entries = (uint)(pak_index.ToArray().Length / Marshal.SizeOf(typeof(Pak_Entry)));
pak_header.index_length = (uint)index.Length;
pak_header.index_offset = (uint)(pak_header.data_offset + pak_data.Length);
byte[] pak = PakUtils.ToByteArray(pak_header).Concat(pad).Concat(pak_data.ToArray()).Concat(index.ToArray()).ToArray();
File.WriteAllBytes(OutFile, pak);
}
