public bool InitializeFieldByField(int row, int col, SingleField field)
{
if (field != null)
{
int newValue = field.Value;
if (newValue < 0 || newValue > 9)
{
return(false);
}
if (!CheckIfSafe(Grid, row, col, newValue))
{
return(false);
}
Grid[row, col] = field;
return(true);
}
return(true);
}
public bool InitializeFieldByUser(int row, int col, string num)
{
if (num != "")
{
int newValue;
if (!int.TryParse(num, out newValue))
{
return(false);
}
if (!CheckIfSafe(Grid, row, col, newValue))
{
return(false);
}
Grid[row, col] = new SingleField(newValue, false);
return(true);
}
return(true);
}
private void FillField(int row, int col)
{
int num;
for (int i = 0; i < 3; i++)
{
for (int j = 0; j < 3; j++)
{
do
{
Random rnd = new Random();
num = rnd.Next(1, 10);
}while (!IsNumberNotInBox(Grid, row, col, num));
Grid[row + i, col + j] = new SingleField(num, true);
}
}
}
public SudokuGenerator(string _difficulty)
{
Console.WriteLine(_difficulty);
GameLevel result;
Enum.TryParse(_difficulty, out result);
Difficulty = result;
EmptyFieldsSolution = new SingleField[9, 9];
Grid = new SingleField[9, 9];
for (int i = 0; i < 9; i++)
{
for (int j = 0; j < 9; j++)
{
Grid[i, j] = new SingleField(0, true);
}
}
UndoStack = new Stack <Tuple <int, int, SingleField, SingleField> >();
RedoStack = new Stack <Tuple <int, int, SingleField, SingleField> >();
}
private void TextBox_TextChanged(object sender, TextChangedEventArgs e)
{
TextBoxError.Text = "";
TextBox changedField = (TextBox)sender;//validate that it is number;
if (changedField.IsFocused)
{
string num = changedField.Text.ToString();
int lenght = changedField.Name.ToString().Count();
int row = Int32.Parse(changedField.Name[lenght - 2].ToString());
int col = Int32.Parse(changedField.Name[lenght - 1].ToString());
SingleField oldValue = Sudoku.Grid[row, col];
if (!Sudoku.InitializeFieldByUser(row, col, num))
{
changedField.Text = "";
TextBoxError.Text = "Not Valid";
}
else
{
SingleField newValue = num == "" ? new SingleField(0, false) : new SingleField(int.Parse(num), false);
Sudoku.AddToUndoStack(new Tuple <int, int, SingleField, SingleField>(row, col, oldValue, newValue));
}
}
}
public SingleField(SingleField _singleField) : this(_singleField.Value, _singleField.Constant)
{
}
public void ChangeFieldValue(int row, int col, SingleField newValue)
{
Grid[row, col] = newValue;
}