private bool ValidateSaveFile()
{
DataStream.Seek(0x0, SeekOrigin.Begin);
var magic = DataStream.ReadInt32();
if (magic != 1213024082) // RGMH
{
MessageBox.Show(
$"Invalid DS2 PC magic at 0x0. Should be 'RGMH', found '{Encoding.ASCII.GetString(BitConverter.GetBytes(magic))}'.",
"Error", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return(false);
}
DataStream.Seek(0x28, SeekOrigin.Begin);
var sig = DataStream.ReadUnicodeString();
if (sig != "Dead Space 2")
{
MessageBox.Show($"Invalid DS2 PC signature at 0x28. Should be 'Dead Space 2', found '{sig}'.",
"Error", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return(false);
}
DataStream.Seek(0x2834, SeekOrigin.Begin);
MC02Header = new MC02Header
{
Magic = DataStream.ReadUInt32(),
TotalLength = DataStream.ReadUInt32(),
Chunk0Length = DataStream.ReadUInt32(),
Chunk1Length = DataStream.ReadUInt32(),
Checksum0 = DataStream.ReadUInt32(),
Checksum1 = DataStream.ReadUInt32(),
Checksum2 = DataStream.ReadUInt32(),
};
if (MC02Header.Magic != 1296248882) // 20CM
{
MessageBox.Show(
$"Invalid MC02 magic at 0x2834. Should be '20CM', found '{Encoding.ASCII.GetString(BitConverter.GetBytes(MC02Header.Magic))}'.",
"Error", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return(false);
}
if (MC02Header.TotalLength != MC02Header.Chunk0Length + MC02Header.Chunk1Length + 0x1C)
{
MessageBox.Show("Size mismatch", "Error", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return(false);
}
return(true);
}
//private MemoryStream DataStream { get; set; } = new MemoryStream();
//private MC02Header MC02Header { get; set; }
static void Main(string[] args)
{
string SaveFilePath = "";
if (args.Length == 0)
{
return;
}
else
{
SaveFilePath = args[0];
}
var DataStream = new MemoryStream();
using (var fs = File.OpenRead(SaveFilePath)) fs.CopyTo(DataStream);
DataStream.Seek(0x0, SeekOrigin.Begin);
var magic = DataStream.ReadInt32();
if (magic != 1213024082) // RGMH
{
return;
}
DataStream.Seek(0x28, SeekOrigin.Begin);
var sig = DataStream.ReadUnicodeString();
if (sig != "Dead Space 2")
{
return;
}
DataStream.Seek(0x2834, SeekOrigin.Begin);
var MC02Header = new MC02Header
{
Magic = DataStream.ReadUInt32(),
TotalLength = DataStream.ReadUInt32(),
Chunk0Length = DataStream.ReadUInt32(),
Chunk1Length = DataStream.ReadUInt32(),
Checksum0 = DataStream.ReadUInt32(),
Checksum1 = DataStream.ReadUInt32(),
Checksum2 = DataStream.ReadUInt32(),
};
if (MC02Header.Magic != 1296248882) // 20CM
{
return;
}
if (MC02Header.TotalLength != MC02Header.Chunk0Length + MC02Header.Chunk1Length + 0x1C)
{
return;
}
ChecksumsStuff.FixChecksums(DataStream, MC02Header);
using (var fs = File.Create(SaveFilePath))
{
DataStream.WriteTo(fs);
}
Console.WriteLine("fixed");
}
