void DrawSudokuGrid(Graphics g)
{
if (count == 0)
{
_grid = grid.GenerateGrid();
int r = 0;
for (int row = 0; row < 5; row += 2)
{
for (int col = 0; col < 4; col += 2)
{
if (r == 0)
{
r = new Random().Next();
}
if (r % 2 == 1)
{
_grid[row, col] = 0;
}
r /= 2;
}
}
for (int row = 1; row < 5; row += 2)
{
for (int col = 1; col < 4; col += 2)
{
if (r == 0)
{
r = new Random().Next();
}
if (r % 2 == 1)
{
_grid[row, col] = 0;
}
r /= 2;
}
}
for (int row = 0; row < 5; row += 2)
{
for (int col = 1; col < 4; col += 2)
{
if (r == 0)
{
r = new Random().Next();
}
if (r % 2 == 1)
{
_grid[row, col] = 0;
}
r /= 2;
}
}
for (int row = 1; row < 5; row += 2)
{
for (int col = 0; col < 4; col += 2)
{
if (r == 0)
{
r = new Random().Next();
}
if (r % 2 == 1)
{
_grid[row, col] = 0;
}
r /= 2;
}
}
if (r % 2 == 0)
{
_grid[4, 4] = 0;
}
for (int row = 0; row < 5; row++)
{
for (int col = 0; col < 4; col++)
{
if (_grid[row, col] == 0)
{
_grid[8 - row, 8 - col] = 0;
_grid[8 - col, row] = 0;
_grid[col, 8 - row] = 0;
}
}
}
gridHints = grid.CalculateHints(_grid);
_board = ClientRectangle;
}
// draw square
g.DrawRectangle(_penThick, _board);
int spacingX = _board.Width / 9;
int spacingY = _board.Height / 9;
for (int col = 0; col < 9; col++)
{
for (int row = 0; row < 9; row++)
{
_boardArray[row, col] = new Rectangle(_board.Left + col * spacingX, _board.Top + row * spacingY, spacingX, spacingY);
}
}
g.FillRectangle(Brushes.Yellow, _boardArray[0, 3]);
g.FillRectangle(Brushes.DarkViolet, _boardArray[0, 4]);
g.FillRectangle(Brushes.Yellow, _boardArray[0, 5]);
g.FillRectangle(Brushes.DeepPink, _boardArray[0, 6]);
g.FillRectangle(Brushes.DeepPink, _boardArray[0, 7]);
g.FillRectangle(Brushes.DeepPink, _boardArray[1, 1]);
g.FillRectangle(Brushes.DeepPink, _boardArray[1, 2]);
g.FillRectangle(Brushes.Yellow, _boardArray[1, 3]);
g.FillRectangle(Brushes.DarkViolet, _boardArray[1, 4]);
g.FillRectangle(Brushes.Yellow, _boardArray[1, 5]);
g.FillRectangle(Brushes.DeepPink, _boardArray[1, 6]);
g.FillRectangle(Brushes.DeepPink, _boardArray[1, 7]);
g.FillRectangle(Brushes.Yellow, _boardArray[2, 3]);
g.FillRectangle(Brushes.Yellow, _boardArray[2, 4]);
g.FillRectangle(Brushes.Yellow, _boardArray[2, 5]);
g.FillRectangle(Brushes.DarkViolet, _boardArray[3, 0]);
g.FillRectangle(Brushes.DarkViolet, _boardArray[3, 1]);
g.FillRectangle(Brushes.DeepPink, _boardArray[3, 3]);
g.FillRectangle(Brushes.DeepPink, _boardArray[3, 4]);
g.FillRectangle(Brushes.DeepPink, _boardArray[3, 5]);
g.FillRectangle(Brushes.DarkViolet, _boardArray[3, 7]);
g.FillRectangle(Brushes.DeepPink, _boardArray[4, 4]);
g.FillRectangle(Brushes.DeepPink, _boardArray[4, 5]);
g.FillRectangle(Brushes.DarkViolet, _boardArray[5, 0]);
g.FillRectangle(Brushes.DarkViolet, _boardArray[5, 1]);
g.FillRectangle(Brushes.DarkViolet, _boardArray[5, 2]);
g.FillRectangle(Brushes.DeepPink, _boardArray[5, 4]);
g.FillRectangle(Brushes.DeepPink, _boardArray[5, 5]);
g.FillRectangle(Brushes.DarkViolet, _boardArray[5, 6]);
g.FillRectangle(Brushes.DarkViolet, _boardArray[5, 7]);
g.FillRectangle(Brushes.DarkViolet, _boardArray[5, 8]);
g.FillRectangle(Brushes.Yellow, _boardArray[6, 0]);
g.FillRectangle(Brushes.Yellow, _boardArray[6, 1]);
g.FillRectangle(Brushes.Yellow, _boardArray[6, 2]);
g.FillRectangle(Brushes.DarkViolet, _boardArray[6, 4]);
g.FillRectangle(Brushes.Yellow, _boardArray[6, 6]);
g.FillRectangle(Brushes.DeepPink, _boardArray[6, 7]);
g.FillRectangle(Brushes.Yellow, _boardArray[6, 8]);
g.FillRectangle(Brushes.Yellow, _boardArray[7, 0]);
g.FillRectangle(Brushes.DeepPink, _boardArray[7, 1]);
g.FillRectangle(Brushes.Yellow, _boardArray[7, 2]);
g.FillRectangle(Brushes.DarkViolet, _boardArray[7, 5]);
g.FillRectangle(Brushes.Yellow, _boardArray[7, 6]);
g.FillRectangle(Brushes.DeepPink, _boardArray[7, 7]);
g.FillRectangle(Brushes.Yellow, _boardArray[7, 8]);
g.FillRectangle(Brushes.Yellow, _boardArray[8, 0]);
g.FillRectangle(Brushes.Yellow, _boardArray[8, 1]);
g.FillRectangle(Brushes.Yellow, _boardArray[8, 2]);
g.FillRectangle(Brushes.DarkViolet, _boardArray[8, 4]);
g.FillRectangle(Brushes.Yellow, _boardArray[8, 6]);
g.FillRectangle(Brushes.Yellow, _boardArray[8, 7]);
g.FillRectangle(Brushes.Yellow, _boardArray[8, 8]);
for (int i = 0; i < 10; i++)
{
if (i % 3 == 0)
{
g.DrawLine(_penThick, _board.Left, _board.Top + spacingY * i, _board.Right, _board.Top + spacingY * i);
g.DrawLine(_penThick, _board.Left + spacingX * i, _board.Top, _board.Left + spacingX * i, _board.Bottom);
}
else
{
g.DrawLine(Pens.Black, _board.Left, _board.Top + spacingY * i, _board.Right, _board.Top + spacingY * i);
g.DrawLine(Pens.Black, _board.Left + spacingX * i, _board.Top, _board.Left + spacingX * i, _board.Bottom);
}
}
for (int col = 0; col < 9; col++)
{
for (int row = 0; row < 9; row++)
{
int val = _grid[row, col];
if (val != 0)
{
g.DrawString(val.ToString(), _sudukoFont, Brushes.Black, _board.Left + col * spacingX + 4, _board.Top + row * spacingY + 1, new StringFormat());
}
else
{
DrawGridHints(g, row, col);
}
}
}
}
