private void MainForm_MouseDown(object sender, MouseEventArgs e)
{
int cellLength = gridLength / game.NumCells;
// Make sure click was inside the grid
if (e.X < GridOffset || e.X > cellLength * game.NumCells + GridOffset ||
e.Y < GridOffset || e.Y > cellLength * game.NumCells + GridOffset)
{
return;
}
// Find row, col of mouse press
int r = (e.Y - GridOffset) / cellLength;
int c = (e.X - GridOffset) / cellLength;
game.Move(r, c);
// Redraw grid
this.Invalidate();
// Check to see if puzzle has been solved
if (game.IsWinner())
{
// Display winner dialog box just inside window
MessageBox.Show(this, "Congratulations! You've won!", "Lights Out!",
MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
