// Check to see if the current session is a tie. If it is, then
// blink the tied cell.
private void CheckForDraw()
{
var cellStack = new Stack <Cell>();
foreach (Cell cell in Cells)
{
if (cell.CellState == Team.Undetermined)
{
return;
}
cellStack.Push(cell);
}
CellBlinker.BlinkCells(Color.Purple, cellStack.ToArray());
}
// Checks for a winner.
public bool CheckForWinner()
{
// Check for vertical win
for (int i = 0; i < dimension; i++)
{
for (int i2 = 0; i2 < dimension; i2++)
{
if (i2 - 1 >= 0 && i2 + 1 < dimension &&
Cells[i, i2 - 1].CellState == Cells[i, i2].CellState &&
Cells[i, i2].CellState == Cells[i, i2 + 1].CellState &&
Cells[i, i2].CellState != Team.Undetermined)
{
CellsEnabled = false;
Color blinkColor = (Cells[i, i2].CellState == Team.X) ? Color.Red : Color.Green;
Cell[] cellsToBlink = { Cells[i, i2 - 1], Cells[i, i2], Cells[i, i2 + 1] };
CellBlinker.BlinkCells(blinkColor, cellsToBlink);
Debug.WriteLine("Vertical win found!");
return(true);
}
}
}
// Check for horizontal win
for (int i = 0; i < dimension; i++)
{
for (int i2 = 0; i2 < dimension; i2++)
{
if (i2 - 1 >= 0 && i2 + 1 < dimension &&
Cells[i2 - 1, i].CellState == Cells[i2, i].CellState &&
Cells[i2, i].CellState == Cells[i2 + 1, i].CellState &&
Cells[i2, i].CellState != Team.Undetermined)
{
CellsEnabled = false;
Color blinkColor = (Cells[i2, i].CellState == Team.X) ? Color.Red : Color.Green;
Cell[] setToBlink = { Cells[i2 - 1, i], Cells[i2, i], Cells[i2 + 1, i] };
CellBlinker.BlinkCells(blinkColor, setToBlink);
Debug.WriteLine("Horizontal win found!");
return(true);
}
}
}
// Check for diagonal wins (Top-Left to Bottom-Right)
for (int i = 0; i < dimension; i++)
{
if (i - 1 >= 0 && i + 1 < dimension &&
Cells[i - 1, i - 1].CellState == Cells[i, i].CellState &&
Cells[i, i].CellState == Cells[i + 1, i + 1].CellState &&
Cells[i, i].CellState != Team.Undetermined)
{
CellsEnabled = false;
Color blinkColor = (Cells[i, i].CellState == Team.X) ? Color.Red : Color.Green;
Cell[] setToBlink = { Cells[i - 1, i - 1], Cells[i, i], Cells[i + 1, i + 1] };
CellBlinker.BlinkCells(blinkColor, setToBlink);
Debug.WriteLine("Diagonal win found! (Top-Left to Bottom-Right)");
return(true);
}
}
// Check for diagonal win (Bottom-left to Top-right)
int decrement = dimension - 1;
for (int i = 0; i < dimension; i++)
{
if (i - 1 >= 0 && i + 1 < dimension &&
Cells[i - 1, decrement + 1].CellState == Cells[i, decrement].CellState &&
Cells[i, decrement].CellState == Cells[i + 1, decrement - 1].CellState &&
Cells[i, decrement].CellState != Team.Undetermined)
{
CellsEnabled = false;
Color blinkColor = (Cells[i, decrement].CellState == Team.X) ? Color.Red : Color.Green;
Cell[] setToBlink = { Cells[i - 1, decrement + 1], Cells[i, decrement], Cells[i + 1, decrement - 1] };
CellBlinker.BlinkCells(blinkColor, setToBlink);
Debug.WriteLine("Diagonal win found! bottom-left to top-right");
return(true);
}
decrement--;
}
CheckForDraw(); // No winner found, check for draw
return(false);
}