public void setPouchBigEndian(ref byte[] Data)
{
if (Items.Length != PouchDataSize)
{
throw new ArgumentException("Item array length does not match original pouch size.");
}
for (int i = 0; i < Items.Length; i++)
{
BigEndian.GetBytes((ushort)Items[i].Index).CopyTo(Data, Offset + i * 4);
BigEndian.GetBytes((ushort)((ushort)Items[i].Count ^ (ushort)SecurityKey)).CopyTo(Data, Offset + i * 4 + 2);
}
}
internal static byte[] EncryptGC(byte[] input, int start, int end, ushort[] keys)
{
byte[] output = (byte[])input.Clone();
for (int ofs = start; ofs < end; ofs += 8)
{
for (int i = 0; i < keys.Length; i++)
{
ushort val = BigEndian.ToUInt16(input, ofs + i * 2);
val += keys[i];
BigEndian.GetBytes(val).CopyTo(output, ofs + i * 2);
}
keys = AdvanceGCKeys(keys);
}
return(output);
}
private static byte[] setXDChecksums(byte[] input, int subOffset0)
{
if (input.Length != 0x28000)
{
throw new ArgumentException("Input should be a slot, not the entire save binary.");
}
byte[] data = (byte[])input.Clone();
const int start = 0xA8; // 0x88 + 0x20
// Header Checksum
int newHC = 0;
for (int i = 0; i < 8; i++)
{
newHC += data[i];
}
BigEndian.GetBytes(newHC).CopyTo(data, start + subOffset0 + 0x38);
// Body Checksum
new byte[16].CopyTo(data, 0x10); // Clear old Checksum Data
uint[] checksum = new uint[4];
int dt = 8;
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 0x9FF4; j += 2, dt += 2)
{
checksum[i] += BigEndian.ToUInt16(data, dt);
}
}
ushort[] newchks = new ushort[8];
for (int i = 0; i < 4; i++)
{
newchks[i * 2] = (ushort)(checksum[i] >> 16);
newchks[i * 2 + 1] = (ushort)checksum[i];
}
Array.Reverse(newchks);
for (int i = 0; i < newchks.Length; i++)
{
BigEndian.GetBytes(newchks[i]).CopyTo(data, 0x10 + 2 * i);
}
return(data);
}
