public static void SetChecksum(byte[] input, int offset, int len, int checksum_offset)
{
uint[] storedChecksums = new uint[16];
for (int i = 0; i < storedChecksums.Length; i++)
{
storedChecksums[i] = BigEndian.ToUInt32(input, checksum_offset + i * 4);
BitConverter.GetBytes((uint)0).CopyTo(input, checksum_offset + i * 4);
}
uint[] checksums = new uint[16];
for (int i = 0; i < len; i += 2)
{
ushort val = BigEndian.ToUInt16(input, offset + i);
for (int j = 0; j < 16; j++)
{
checksums[j] += (uint)((val >> j) & 1);
}
}
for (int i = 0; i < checksums.Length; i++)
{
BigEndian.GetBytes(checksums[i]).CopyTo(input, checksum_offset + i * 4);
}
}
public SAV4BR(byte[] data = null)
{
Data = data == null ? new byte[SaveUtil.SIZE_G4BR] : (byte[])data.Clone();
BAK = (byte[])Data.Clone();
Exportable = !Data.SequenceEqual(new byte[Data.Length]);
if (SaveUtil.getIsG4BRSAV(Data) != GameVersion.BATREV)
{
return;
}
Data = DecryptPBRSaveData(data);
// Detect active save
SaveCount = Math.Max(BigEndian.ToUInt32(Data, 0x1C004C), BigEndian.ToUInt32(Data, 0x4C));
if (BigEndian.ToUInt32(Data, 0x1C004C) > BigEndian.ToUInt32(Data, 0x4C))
{
byte[] tempData = new byte[0x1C0000];
Array.Copy(Data, 0, tempData, 0, 0x1C0000);
Array.Copy(Data, 0x1C0000, Data, 0, 0x1C0000);
tempData.CopyTo(Data, 0x1C0000);
}
SaveSlots = new List <int>();
SaveNames = new string[SAVE_COUNT];
for (int i = 0; i < SAVE_COUNT; i++)
{
if (BitConverter.ToUInt16(Data, 0x390 + 0x6FF00 * i) != 0)
{
SaveSlots.Add(i);
SaveNames[i] = Encoding.BigEndianUnicode.GetString(Data, 0x390 + 0x6FF00 * i, 0x10);
}
}
CurrentSlot = SaveSlots.First();
Personal = PersonalTable.DP;
HeldItems = Legal.HeldItems_DP;
if (!Exportable)
{
resetBoxes();
}
}