barncastle/DinoKingExtractor.zip

## DinoKingExtractor.zip

      
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## DinoKingSSZL.cs
using System.IO;
using System.Runtime.InteropServices;

namespace ConsoleApp2
{
    static class DinoKingSSZL
    {
        public static void Extract(string directory, string filename)
        {
            Directory.CreateDirectory("Dump");

            using var fsFil = File.OpenRead(Path.Combine(directory, filename) + ".fil");
            using var fsBin = File.OpenRead(Path.Combine(directory, filename) + ".bin");

            while (fsFil.Position != fsFil.Length)
            {
                var entry = fsFil.Read<FileInfo>();

                fsBin.Position = entry.Offset;

                byte[] buffer;
                if (entry.Flags == 1)
                {
                    var header = fsBin.Read<SSZL_Header>();
                    buffer = fsBin.ReadBytes(entry.Size - 16);
                    buffer = Decompress(header, buffer);
                }
                else
                {
                    buffer = fsBin.ReadBytes(entry.Size);
                }

                File.WriteAllBytes("Dump\\" + entry.Filename, buffer);
            }
        }

        public static byte[] Decompress(SSZL_Header header, byte[] input)
        {
            var output = new byte[header.DecompressedSize];

            // i = input position, o = output position
            for (int i = 0, o = 0; o < header.DecompressedSize;)
            {
                byte value = input[i++];

                if (value != header.Control)
                {
                    // store literal
                    output[o++] = value;
                }
                else
                {
                    byte index = input[i++];

                    if (index == header.Control)
                    {
                        // store control byte
                        output[o++] = (byte)header.Control;
                    }
                    else
                    {
                        byte count = input[i++];

                        // fix index value
                        if (index > header.Control)
                            index--;

                        // back reference
                        for (int j = 0; j < count; j++, o++)
                            output[o] = output[o - index];
                    }
                }
            }

            return output;
        }

        [StructLayout(LayoutKind.Sequential)]
        struct FileInfo
        {
            public int Offset;
            public int Size;
            public int Flags;
            [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)]
            public string Filename;
        }

        [StructLayout(LayoutKind.Sequential)]
        struct SSZL_Header
        {
            public uint Magic;
            public int DecompressedSize;
            public int Size;
            public int Control;
        }
    }
}
	using System.IO;
	using System.Runtime.InteropServices;

	namespace ConsoleApp2
	{
	static class DinoKingSSZL
	{
	public static void Extract(string directory, string filename)
	{
	Directory.CreateDirectory("Dump");

	using var fsFil = File.OpenRead(Path.Combine(directory, filename) + ".fil");
	using var fsBin = File.OpenRead(Path.Combine(directory, filename) + ".bin");

	while (fsFil.Position != fsFil.Length)
	{
	var entry = fsFil.Read<FileInfo>();

	fsBin.Position = entry.Offset;

	byte[] buffer;
	if (entry.Flags == 1)
	{
	var header = fsBin.Read<SSZL_Header>();
	buffer = fsBin.ReadBytes(entry.Size - 16);
	buffer = Decompress(header, buffer);
	}
	else
	{
	buffer = fsBin.ReadBytes(entry.Size);
	}

	File.WriteAllBytes("Dump\\" + entry.Filename, buffer);
	}
	}

	public static byte[] Decompress(SSZL_Header header, byte[] input)
	{
	var output = new byte[header.DecompressedSize];

	// i = input position, o = output position
	for (int i = 0, o = 0; o < header.DecompressedSize;)
	{
	byte value = input[i++];

	if (value != header.Control)
	{
	// store literal
	output[o++] = value;
	}
	else
	{
	byte index = input[i++];

	if (index == header.Control)
	{
	// store control byte
	output[o++] = (byte)header.Control;
	}
	else
	{
	byte count = input[i++];

	// fix index value
	if (index > header.Control)
	index--;

	// back reference
	for (int j = 0; j < count; j++, o++)
	output[o] = output[o - index];
	}
	}
	}

	return output;
	}

	[StructLayout(LayoutKind.Sequential)]
	struct FileInfo
	{
	public int Offset;
	public int Size;
	public int Flags;
	[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)]
	public string Filename;
	}

	[StructLayout(LayoutKind.Sequential)]
	struct SSZL_Header
	{
	public uint Magic;
	public int DecompressedSize;
	public int Size;
	public int Control;
	}
	}
	}