public SNAFile(byte[] data)
{
this.data = data;
EncodedStream stream = new EncodedStream(data);
var r = new BinaryReader(stream);
stream.Seek(4, SeekOrigin.Current); // SNA's magic number is not encoded
do
{
long position = stream.Position;
var partId = r.ReadByte();
var memorySomething = r.ReadByte();
var v32 = r.ReadByte();
var v29 = r.ReadInt32();
var v42 = r.ReadInt32();
var v27 = r.ReadInt32();
var v33 = r.ReadInt32();
var dataSize = r.ReadInt32(); // 0, 0, 0, 0, 0, 0, 0, 0x0001BC4C (113740), 0x006934D0, 0x00053770
//MessageBox.Show(toMove.ToString("X8"));
//MessageBox.Show((10 * partId + memorySomething).ToString());
if (!gptRelocationIdToPartPosition.ContainsKey(10 * partId + memorySomething))
{
gptRelocationIdToPartPosition.Add(10 * partId + memorySomething, position);
}
else
{
gptRelocationIdToPartPosition[10 * partId + memorySomething] = position;
}
if (ParseSNA3(partId, memorySomething))
{
if (dataSize > 0)
{
byte[] v41 = r.ReadBytes(dataSize);
parts.Add(new PartStruct()
{
position = position,
partId = partId,
size = dataSize
});
File.WriteAllBytes($"sna_part_{partId}_{memorySomething}.bin", v41);
}
}
else if (dataSize > 0)
{
// MessageBox.Show("Moving" + toMove.ToString());
}
// WIP - do not touch
}while (stream.Position < stream.Length);
}
static void Main(string[] args)
{
EncodedStream stream = new EncodedStream(File.ReadAllBytes(@"D:\GOG Games\Rayman 2\Data\World\Levels\Learn_30\Learn_30.sna"));
var r = new BinaryReader(stream);
stream.Seek(4, SeekOrigin.Current); // SNA's magic number is not encoded
stream.SeekWithUpdatedMagic(-4 + 0x5a242 - 0x46); // Move to portal stone structure start
// Texture entry
int something1 = r.ReadInt32();
int something2 = r.ReadInt32();
int something3 = r.ReadInt32();
int something4 = r.ReadInt32();
int something5 = r.ReadInt32();
int something6 = r.ReadInt32();
short something7 = r.ReadInt16();
short something8 = r.ReadInt16();
short texture_width = r.ReadInt16(); // Not sure
short texture_height = r.ReadInt16(); // Not sure
int something11 = r.ReadInt32();
int something12 = r.ReadInt32();
int something13 = r.ReadInt32();
int something14 = r.ReadInt32();
var something15 = r.ReadBytes(21);
byte something16 = r.ReadByte();
string texture_name = r.ReadNullTermStringWithLength(130);
Console.WriteLine("something1: " + something1);
Console.WriteLine("something2: " + something2);
Console.WriteLine("something3: " + something3);
Console.WriteLine("something4: " + something4);
Console.WriteLine("something5: " + something5);
Console.WriteLine("something6: " + something6);
Console.WriteLine("something7: " + something7);
Console.WriteLine("something8: " + something8);
Console.WriteLine("texture_width: " + texture_width);
Console.WriteLine("texture_height: " + texture_height);
Console.WriteLine("something11: " + something11);
Console.WriteLine("something12: " + something12);
Console.WriteLine("something13: " + something13);
Console.WriteLine("something14: " + something14);
Console.WriteLine("something15: " + something15);
Console.WriteLine("something16: " + something16);
Console.WriteLine("texture_name: " + texture_name);
Console.ReadLine();
}
public SNAFile(byte[] data)
{
this.data = data;
EncodedStream stream = new EncodedStream(data);
var r = new BinaryReader(stream);
stream.Seek(4, SeekOrigin.Current); // SNA's magic number is not encoded
do
{
long position = stream.Position;
var partId = r.ReadByte();
var memorySomething = r.ReadByte();
var v32 = r.ReadByte();
var v29 = r.ReadInt32();
var v42 = r.ReadInt32();
var v27 = r.ReadInt32();
var v33 = r.ReadInt32();
var dataSize = r.ReadInt32(); // 0, 0, 0, 0, 0, 0, 0, 0x0001BC4C (113740), 0x006934D0, 0x00053770
//MessageBox.Show(toMove.ToString("X8"));
//MessageBox.Show((10 * partId + memorySomething).ToString());
if (!gptRelocationIdToPartPosition.ContainsKey(10*partId + memorySomething))
gptRelocationIdToPartPosition.Add(10*partId + memorySomething, position);
else
gptRelocationIdToPartPosition[10*partId + memorySomething] = position;
if (ParseSNA3(partId, memorySomething))
{
if (dataSize > 0)
{
byte[] v41 = r.ReadBytes(dataSize);
parts.Add(new PartStruct()
{
position = position,
partId = partId,
size = dataSize
});
File.WriteAllBytes($"sna_part_{partId}_{memorySomething}.bin", v41);
}
}
else if (dataSize > 0)
{
// MessageBox.Show("Moving" + toMove.ToString());
}
// WIP - do not touch
}
while (stream.Position < stream.Length);
}
private void decodeButton_Click(object sender, EventArgs e)
{
openFileDialog1.Filter = "";
if (openFileDialog1.ShowDialog() == DialogResult.OK && File.Exists(openFileDialog1.FileName))
{
saveFileDialog1.FileName = new FileInfo(openFileDialog1.FileName).Name + ".decoded";
if (saveFileDialog1.ShowDialog() == DialogResult.OK)
{
var stream = new EncodedStream(File.ReadAllBytes(openFileDialog1.FileName));
stream.Seek(4, SeekOrigin.Current);
byte[] buff = new byte[stream.Length];
buff[0] = 0x79;
buff[1] = 0xCC;
buff[2] = 0xB5;
buff[3] = 0x6A;
stream.Read(buff, 4, (int)stream.Length - 4);
File.WriteAllBytes(saveFileDialog1.FileName, buff);
stream.Close();
MessageBox.Show("File decoded!");
}
}
}
