public static void FillCell(this SudokuCell sudokuCell, int newFill)
{
if (sudokuCell == null)
{
new NullReferenceException();
}
else
{
if (sudokuCell.Possibilities.Contains(newFill))
{
sudokuCell.FillValue = newFill;
Console.WriteLine("{0} now has fill value of {1}", sudokuCell.ToString(), newFill.ToString());
Debug.WriteLine("{0} now has fill value of {1}", sudokuCell.ToString(), newFill.ToString());
SudokuPuzzle.GetPuzzle().cellBoard.fillFrequencyCounter.IncrementFor(newFill);
}
else
{
Console.WriteLine("{0} not part of {1}'s possibilities", newFill.ToString(), sudokuCell.ToString());
}
}
}
public static void UnfillCell(this SudokuCell sudokuCell)
{
if (sudokuCell == null)
{
new NullReferenceException();
}
else
{
if (sudokuCell.isFilled)
{
int oldValue = sudokuCell.FillValue;
sudokuCell.FillValue = 0;
SudokuPuzzle.GetPuzzle().cellBoard.fillFrequencyCounter.DecrementFor(oldValue);
}
else
{
Console.WriteLine("{0} is already unfilled.", sudokuCell.ToString());
}
}
}