private void MineCell_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
MineCell mineCell = (MineCell)sender;
if (mineCell.IsFlagged == false)
{
RevealMineCell((MineCell)sender);
CheckIfWon(false);
}
}
else if (e.Button == MouseButtons.Right)
{
MineCell mineCell = (MineCell)sender;
if (mineCell.IsFlagged == false)
{
mineCell.BackColor = Color.Red;
mineCell.IsFlagged = true;
}
else//if already flagged
{
mineCell.BackColor = SystemColors.ControlLight;
mineCell.IsFlagged = false;
}
CheckIfWon(true);
}
}
/// <summary>
/// Left and right mouse button simultaneously press behavior
/// </summary>
/// <param name="row"></param>
/// <param name="col"></param>
public void UncoverNearBy(int row, int col)
{
MineCell cell = cells[row, col];
if (cell.Status == MineCellStatus.Uncovered && cell.NearbyMines > 0)
{
byte minesFound = 0;
for (int i = 0; i < moves.GetLength(0); i++)
{
int r = row + moves[i, 0];
int c = col + moves[i, 1];
if (IsValidCell(r, c) && cells[r, c].Status == MineCellStatus.MarkMine)
{
minesFound++;
}
}
if (minesFound == cell.NearbyMines)
{
for (int i = 0; i < moves.GetLength(0); i++)
{
int r = row + moves[i, 0];
int c = col + moves[i, 1];
Uncover(r, c);
}
}
}
}
private void RevealMineCell(MineCell revealingMineCell)
{
string[] parsedCoords = revealingMineCell.Name.ToString().Split(',');
int proxXCoord = Convert.ToInt32(parsedCoords[0]);
int proxYCoord = Convert.ToInt32(parsedCoords[1]);
string proxCellName; //the name of the proximity mine cell
MineCell proxCell; //the proximity mine cell
int[,] proxCoords =
{
{ proxXCoord + 1, proxYCoord - 1 },//all 8 adjacent coordinates of `revealingMineCell`
{ proxXCoord + 1, proxYCoord },
{ proxXCoord + 1, proxYCoord + 1 },
{ proxXCoord - 1, proxYCoord - 1 },
{ proxXCoord - 1, proxYCoord },
{ proxXCoord - 1, proxYCoord + 1 },
{ proxXCoord, proxYCoord - 1 },
{ proxXCoord, proxYCoord + 1 }
};
if (revealingMineCell.HasMine)//if the mine cell revealed has mine in it
{
MineField.Enabled = false;
GameOverSign.Visible = true;
RetryButton.Enabled = true;
RetryButton.Visible = true;
RetryButton.BringToFront();
}
else if (revealingMineCell.ProxMineCount == 0)//if the mine cell revealed is empty
{
revealingMineCell.Enabled = false;
revealingMineCell.BackColor = SystemColors.ControlDark;
revealingMineCell.IsRevealed = true;
for (int i = 0; i < 8; i++)
{
proxCellName = Convert.ToString(proxCoords[i, 0]) + "," + Convert.ToString(proxCoords[i, 1]);
proxCell = (MineCell)MineField.Controls.Find(proxCellName, true).FirstOrDefault();
if (proxCell != null && proxCell.IsRevealed == false && proxCell.IsFlagged)
{
proxCell.IsFlagged = false;
proxCell.BackColor = SystemColors.ControlDark;
RevealMineCell(proxCell);
}
else if (proxCell != null && proxCell.IsRevealed == false) //reminder: `proxCell` is impossible to have a mine in it as `revealingMineCell` is empty in the first place
{
RevealMineCell(proxCell); //repeat the process until all adjacent empty mine cells are all revealed
}
}
}
else
{
revealingMineCell.Enabled = false;
revealingMineCell.Text = Convert.ToString(revealingMineCell.ProxMineCount);
revealingMineCell.BackColor = SystemColors.ControlDark;
revealingMineCell.IsRevealed = true;
}
}
private void DrawCell(Graphics g, MineCell cell)
{
Rectangle rt = CellRectangle;
StringFormat sf = new StringFormat();
sf.Alignment = StringAlignment.Center;
sf.LineAlignment = StringAlignment.Center;
if (cell.IsMine && board.Status == GameStatus.Lose)
{
g.FillRectangle(Brushes.DarkGray, rt);
g.DrawString("@", Font, cell.Status == MineCellStatus.Exploded ? Brushes.Red : Brushes.DarkBlue, rt, sf);
}
else
{
if (cell.Status == MineCellStatus.Covered)
{
g.FillRectangle(Brushes.DarkGray, rt);
}
else if (cell.Status == MineCellStatus.MarkMine)
{
g.FillRectangle(Brushes.DarkGray, rt);
g.DrawString("#", Font, Brushes.DarkBlue, rt, sf);
}
else if (cell.Status == MineCellStatus.MarkDoubt)
{
g.FillRectangle(Brushes.DarkGray, rt);
g.DrawString("?", Font, Brushes.DarkBlue, rt, sf);
}
else
{
if (cell.NearbyMines > 0)
{
g.DrawString(cell.NearbyMines.ToString(), Font, Brushes.DarkBlue, rt, sf);
}
}
}
g.DrawRectangle(Pens.Black, rt);
sf.Dispose();
}
public void Uncover(int row, int col)
{
if (!IsValidCell(row, col))
{
return;
}
if (status == GameStatus.NotStarted)
{
status = GameStatus.Playing;
}
MineCell cell = cells[row, col];
if (cell.Status != MineCellStatus.Covered)
{
return;
}
if (cell.IsMine)
{
cells[row, col].Status = MineCellStatus.Exploded;
this.status = GameStatus.Lose;
return;
}
else
{
cells[row, col].Status = MineCellStatus.Uncovered;
}
// If the surrounding mines number is 0, then turn around the 8 positions.
if (!cell.IsMine && cell.NearbyMines == 0)
{
for (int i = 0; i < moves.GetLength(0); i++)
{
Uncover(row + moves[i, 0], col + moves[i, 1]);
}
}
}
/// <summary>
/// Set or cancel the flag, which is equivalent to the right mouse click behavior
/// </summary>
/// <param name="row"></param>
/// <param name="col"></param>
public void ChangeMark(int row, int col)
{
if (!IsValidCell(row, col))
{
return;
}
if (status == GameStatus.NotStarted)
{
status = GameStatus.Playing;
}
MineCell cell = cells[row, col];
// Set or cancel the flag, which is equivalent to the right mouse click behavior
switch (cell.Status)
{
case MineCellStatus.Covered:
cell.Status = MineCellStatus.MarkMine;
makedMines++;
break;
case MineCellStatus.MarkMine:
cell.Status = MineCellStatus.MarkDoubt;
break;
case MineCellStatus.MarkDoubt:
makedMines--;
cell.Status = MineCellStatus.Covered;
break;
default:
break;
}
cells[row, col] = cell;
}
public Minesweeper()
{
InitializeComponent();
StartupMenu startupMenu = new StartupMenu(this);
startupMenu.FormClosing += new FormClosingEventHandler(StartupMenu_Closing);
if (GameInfo.FirstStarted)
{
startupMenu.ShowDialog();//show startup menu
GameInfo.FirstStarted = false;
}
while (!GameInfo.GameStarted)
{
; //wait until start button is pressed
}
//<draw mine field>
int mineCellWidth = 25;
int mineCellLength = 25;
int mineCellDistance = 5;
Random rnd = new Random();
for (int x = 0; x < GameInfo.BoardX; x++)//generate mine cells
{
for (int y = 0; y < GameInfo.BoardY; y++)
{
MineCell currentDrawing = new MineCell()
{
Size = new Size(mineCellWidth, mineCellLength),
Location = new Point(x * mineCellWidth + mineCellDistance, y * mineCellLength + mineCellDistance),
Name = Convert.ToString(x, 10) + "," + Convert.ToString(y, 10),
BackColor = SystemColors.ControlLight
};
MineField.Controls.Add(currentDrawing);
currentDrawing.MouseDown += new MouseEventHandler(MineCell_MouseDown);
}
}
for (; ;) //generate mines
{
int randomXCoord = rnd.Next(0, GameInfo.BoardX);
int randomYCoord = rnd.Next(0, GameInfo.BoardY);
string SelectedMineCellName = Convert.ToString(randomXCoord) + "," + Convert.ToString(randomYCoord);//the name of the mine cell selected
MineCell selectedMineCell = (MineCell)MineField.Controls.Find(SelectedMineCellName, true)[0];
if (selectedMineCell.HasMine == false)
{
selectedMineCell.HasMine = true;
GameInfo.CurrentMineCount++;
}
else//if the selected mine cell already has mine in it
{
continue;
}
if (GameInfo.CurrentMineCount == GameInfo.TotalMineCount)//when generation is complete
{
break;
}
}
for (int x = 0; x < GameInfo.BoardX; x++)//calculate `ProxMineCount`
{
for (int y = 0; y < GameInfo.BoardY; y++)
{
string selectedMineCellName = Convert.ToString(x) + "," + Convert.ToString(y); //the name of the mine cell selected
string proxCellName; //the name of the proximity mine cell
int[,] proxCoords =
{
{ x + 1, y - 1 },//all 8 adjacent coordinates of `selectedCell`
{ x + 1, y },
{ x + 1, y + 1 },
{ x - 1, y - 1 },
{ x - 1, y },
{ x - 1, y + 1 },
{ x, y - 1 },
{ x, y + 1 }
};
MineCell selectedCell = (MineCell)MineField.Controls.Find(selectedMineCellName, true)[0];
MineCell proxCell;
for (int i = 0; i < 8; i++)//cycle through all 8 adjacent cells
{
proxCellName = Convert.ToString(proxCoords[i, 0]) + "," + Convert.ToString(proxCoords[i, 1]);
proxCell = (MineCell)MineField.Controls.Find(proxCellName, true).FirstOrDefault();
if (proxCell != null && proxCell.HasMine)
{
selectedCell.ProxMineCount++;
}
}
}
}
//</draw mine field>
}
