/// <summary>
/// Applies a known shuffler to the table
/// </summary>
/// <remarks>
/// The two numbers of the shuffler ID correspond to the positions of the bytes 0x00 and 0xFF in the unshuffled table.
/// Using the known upper sub-table, the positions of these two values can be determined.
/// </remarks>
/// <param name="shufflerId">The shuffler ID of the known shuffler</param>
private void ApplyShuffler(Solver.ShufflerId shufflerId)
{
Shuffler = Solver.GenerateShuffler(shufflerId.Pos1, shufflerId.Pos2, true);
ApplyShufflerId(shufflerId.Pos1);
ApplyShufflerId(shufflerId.Pos2);
void ApplyShufflerId(int position)
{
int row = position >> 4;
switch (UpperSubTable[row])
{
case 0:
Cells[position].Possible.RemoveAll(x => x != 0);
break;
case 0xf:
Cells[position].Possible.RemoveAll(x => x != 0xff);
break;
default:
throw new InvalidDataException("Incorrect position when setting shuffle table.");
}
}
}
public Table(Solver.ShufflerId shuffler, int upperSeed)
{
for (int i = 0; i < Seeds.Length; i++)
{
Seeds[i] = new PossibleBytes();
}
for (int i = 0; i < Cells.Length; i++)
{
Cells[i] = new PossibleBytes();
}
ApplyUpperSeed(upperSeed);
ApplyShuffler(shuffler);
RunCycles();
}