public static void WriteHallOfFameDataToSave(HallOfFameStructure hofs, System.IO.Stream file, int offset = 0x1C000, int pages = 2)
{
using (System.IO.Stream buffer = new System.IO.MemoryStream(0xF80 * pages)) {
// Serialize
buffer.Position = 0;
hofs.Serialize(buffer);
buffer.WriteAlign(0xF80 * pages, 0x00);
// Calculate checksums
buffer.Position = 0;
ushort[] checksums = new ushort[pages];
for (int i = 0; i < pages; ++i)
{
checksums[i] = Checksum.CalculateSaveChecksum(buffer, 0xF80);
}
// Write back into save
buffer.Position = 0;
for (int i = 0; i < pages; ++i)
{
int secpos = offset + i * 0x1000;
file.WriteAlign(secpos + 0x1000, 0x00);
file.Position = secpos;
Util.CopyStream(buffer, file, 0xF80);
file.Position = secpos + 0xFF4;
file.WriteUInt16(checksums[i]);
file.Position = secpos + 0xFF8;
file.WriteUInt32(0x08012025);
file.Position = secpos + 0x1000;
}
}
}
public static int Execute(List <string> args)
{
if (args.Count < 1)
{
Console.WriteLine("Usage: pokemon-emerald.sav (maybe other Gen3 works too?)");
return(-1);
}
String filename = args[0];
using (System.IO.Stream file = new System.IO.FileStream(filename, System.IO.FileMode.Open)) {
// Read
HallOfFameStructure hofs = ReadHallOfFameFromSave(file);
// Do something, whatever
{
for (int i = 2; i < 50; i += 2)
{
hofs.Entries[i + 0] = hofs.Entries[0];
hofs.Entries[i + 1] = hofs.Entries[1];
}
}
// Write
WriteHallOfFameDataToSave(hofs, file);
}
return(0);
}
public static HallOfFameStructure ReadHallOfFameFromSave(System.IO.Stream file, int offset = 0x1C000, int pages = 2)
{
using (System.IO.Stream buffer = new System.IO.MemoryStream(0xF80 * pages)) {
// Read
for (int i = 0; i < pages; ++i)
{
int secpos = offset + i * 0x1000;
file.Position = secpos + 0xFF8;
uint magic = file.ReadUInt32();
if (magic != 0x08012025)
{
Console.WriteLine("Magic number of sector at 0x" + secpos.ToString("X") + " is wrong, Hall of Fame is probably empty.");
return(null);
}
file.Position = secpos + 0xFF4;
ushort checksumRead = file.ReadUInt16();
file.Position = secpos;
ushort checksum = Checksum.CalculateSaveChecksum(file, 0xF80);
if (checksumRead != checksum)
{
Console.WriteLine("Checksum of sector at 0x" + secpos.ToString("X") + " is wrong.");
return(null);
}
file.Position = secpos;
Util.CopyStream(file, buffer, 0xF80);
}
// Deserialize
buffer.Position = 0;
HallOfFameStructure hofs = new HallOfFameStructure(buffer, (pages * 0xF80) / 0x78);
return(hofs);
}
}
