/// <summary>
/// The minimax function considers all the possible paths of the game.
/// </summary>
/// <param name="Board">The game-board to be checked.</param>
/// <param name="Depth">The depth of the game-board.</param>
/// <param name="IsMaximizing">Whether to maximize or not.</param>
/// <returns>The value of the board.</returns>
private static int MiniMax(char[,] Board, int Depth, bool IsMaximizing)
{
// If the opponent has won the game.
if (GridControll.CheckWinner(Board) == 10)
{
return(10);
}
else if (GridControll.CheckWinner(Board) == -10)
{
return(-10);
}
// If there is any possible moves left.
if (GridControll.IsMovePossible(Board) == false)
{
return(0);
}
if (IsMaximizing)
{
int Best = -1000;
for (int i = 0; i < 3; i++)
{
for (int j = 0; j < 3; j++)
{
if (Board[i, j] == '-')
{
char[,] TestBoard = Board.Clone() as char[, ];
// Try the move
TestBoard[i, j] = 'O';
Best = Math.Max(Best, MiniMax(TestBoard, Depth + 1, false));
}
}
}
return(Best);
}
else
{
int Best = 1000;
for (int i = 0; i < 3; i++)
{
for (int j = 0; j < 3; j++)
{
if (Board[i, j] == '-')
{
char[,] TestBoard = Board.Clone() as char[, ];
// Try the move
TestBoard[i, j] = 'X';
Best = Math.Min(Best, MiniMax(TestBoard, Depth + 1, true));
}
}
}
return(Best);
}
}
static void Main(string[] args)
{
Initialize();
OpenConsoleWindow(4, 4, 66, 25, "Welcome to Tic Tac Toe!");
WriteLine("Controlls in the game:");
WriteLine();
WriteLine("Move the mouse to controll pointer on the screen.");
WriteLine("Press the left mouse button while inside an cell to place an X.");
WriteLine("Press Q to restart the current game.");
WriteLine("Press ESC to close the application.");
WriteLine();
WriteLine("To play, press ENTER.");
ReadLine();
ClearConsoleWindowArea();
Clear();
// Draw board
FillRectangle(170, 189, 470, 191, Color.White);
FillRectangle(170, 289, 470, 291, Color.White);
FillRectangle(269, 90, 271, 390, Color.White);
FillRectangle(170, 389, 470, 391, Color.White);
FillRectangle(170, 89, 470, 91, Color.White);
FillRectangle(169, 90, 171, 390, Color.White);
FillRectangle(369, 90, 371, 390, Color.White);
FillRectangle(469, 90, 471, 390, Color.White);
int MousePointerTexture = AddSpriteTexture(GetResourceBitmap("MouseCoursor.png"), System.Drawing.Color.FromArgb(0, 0, 255), true);
bool GameOver = false;
bool Done = false;
Point Point = GetMousePointer();
Point MouseDownPoint;
Sprite MousePointer = CreateSprite(Point.X, Point.Y, MousePointerTexture);
char[,] Grid = new char[, ] {
{ '-', '-', '-' },
{ '-', '-', '-' },
{ '-', '-', '-' }
};
OnKeyPressed += (sender, e) =>
{
switch (e.Character)
{
case '\x1b':
Done = true;
break;
case 'q':
case 'Q':
GameOver = true;
break;
}
};
OnUpdateModel += (sender, e) =>
{
if (!GridControll.IsMovePossible(Grid) || GridControll.CheckWinner(Grid) != 0)
{
GameOver = true;
}
};
OnMouseMove += (sender, e) =>
{
Point = e.Position;
MousePointer.SetPosition(Point);
};
OnMouseDown += (sender, e) =>
{
if (GameOver)
{
return;
}
MouseDownPoint = e.Position;
// Check if mouse is down inside an cell and if that cell is empty
if (GridControll.PointInsideCell(MouseDownPoint, 170, 290, 270, 390) && Grid[2, 0] == '-')
{
Grid[2, 0] = 'X';
DrawLine(180, 380, 260, 300, Color.White);
DrawLine(181, 380, 261, 300, Color.White);
DrawLine(179, 380, 259, 300, Color.White);
DrawLine(260, 380, 180, 300, Color.White);
DrawLine(261, 380, 181, 300, Color.White);
DrawLine(259, 380, 179, 300, Color.White);
Grid = Opponent.OpponentMove(Grid);
}
else if (GridControll.PointInsideCell(MouseDownPoint, 170, 190, 270, 290) && Grid[1, 0] == '-')
{
Grid[1, 0] = 'X';
DrawLine(180, 280, 260, 200, Color.White);
DrawLine(181, 280, 261, 200, Color.White);
DrawLine(179, 280, 259, 200, Color.White);
DrawLine(260, 280, 180, 200, Color.White);
DrawLine(261, 280, 181, 200, Color.White);
DrawLine(259, 280, 179, 200, Color.White);
Grid = Opponent.OpponentMove(Grid);
}
else if (GridControll.PointInsideCell(MouseDownPoint, 170, 90, 270, 190) && Grid[0, 0] == '-')
{
Grid[0, 0] = 'X';
DrawLine(180, 180, 260, 100, Color.White);
DrawLine(181, 180, 261, 100, Color.White);
DrawLine(179, 180, 259, 100, Color.White);
DrawLine(260, 180, 180, 100, Color.White);
DrawLine(261, 180, 181, 100, Color.White);
DrawLine(259, 180, 179, 100, Color.White);
Grid = Opponent.OpponentMove(Grid);
}
else if (GridControll.PointInsideCell(MouseDownPoint, 270, 290, 370, 390) && Grid[2, 1] == '-')
{
Grid[2, 1] = 'X';
DrawLine(280, 380, 360, 300, Color.White);
DrawLine(281, 380, 361, 300, Color.White);
DrawLine(279, 380, 359, 300, Color.White);
DrawLine(360, 380, 280, 300, Color.White);
DrawLine(361, 380, 281, 300, Color.White);
DrawLine(359, 380, 279, 300, Color.White);
Grid = Opponent.OpponentMove(Grid);
}
else if (GridControll.PointInsideCell(MouseDownPoint, 270, 190, 370, 290) && Grid[1, 1] == '-')
{
Grid[1, 1] = 'X';
DrawLine(280, 280, 360, 200, Color.White);
DrawLine(281, 280, 361, 200, Color.White);
DrawLine(279, 280, 359, 200, Color.White);
DrawLine(360, 280, 280, 200, Color.White);
DrawLine(361, 280, 281, 200, Color.White);
DrawLine(359, 280, 279, 200, Color.White);
Grid = Opponent.OpponentMove(Grid);
}
else if (GridControll.PointInsideCell(MouseDownPoint, 270, 90, 370, 190) && Grid[0, 1] == '-')
{
Grid[0, 1] = 'X';
DrawLine(280, 180, 360, 100, Color.White);
DrawLine(281, 180, 361, 100, Color.White);
DrawLine(279, 180, 359, 100, Color.White);
DrawLine(360, 180, 280, 100, Color.White);
DrawLine(361, 180, 281, 100, Color.White);
DrawLine(359, 180, 279, 100, Color.White);
Grid = Opponent.OpponentMove(Grid);
}
else if (GridControll.PointInsideCell(MouseDownPoint, 370, 290, 470, 390) && Grid[2, 2] == '-')
{
Grid[2, 2] = 'X';
DrawLine(380, 380, 460, 300, Color.White);
DrawLine(381, 380, 461, 300, Color.White);
DrawLine(379, 380, 459, 300, Color.White);
DrawLine(460, 380, 380, 300, Color.White);
DrawLine(461, 380, 381, 300, Color.White);
DrawLine(459, 380, 379, 300, Color.White);
Grid = Opponent.OpponentMove(Grid);
}
else if (GridControll.PointInsideCell(MouseDownPoint, 370, 190, 470, 290) && Grid[1, 2] == '-')
{
Grid[1, 2] = 'X';
DrawLine(380, 280, 460, 200, Color.White);
DrawLine(381, 280, 461, 200, Color.White);
DrawLine(379, 280, 459, 200, Color.White);
DrawLine(460, 280, 380, 200, Color.White);
DrawLine(461, 280, 381, 200, Color.White);
DrawLine(459, 280, 379, 200, Color.White);
Grid = Opponent.OpponentMove(Grid);
}
else if (GridControll.PointInsideCell(MouseDownPoint, 370, 90, 470, 190) && Grid[0, 2] == '-')
{
Grid[0, 2] = 'X';
DrawLine(380, 180, 460, 100, Color.White);
DrawLine(381, 180, 461, 100, Color.White);
DrawLine(379, 180, 459, 100, Color.White);
DrawLine(460, 180, 380, 100, Color.White);
DrawLine(461, 180, 381, 100, Color.White);
DrawLine(459, 180, 379, 100, Color.White);
Grid = Opponent.OpponentMove(Grid);
}
};
while (!Done)
{
while (!Done && !GameOver)
{
Sleep(1000);
}
if (GameOver)
{
// Check who is the winner of the game
switch (GridControll.CheckWinner(Grid))
{
case 10:
ClearRaster();
OpenConsoleWindow(4, 4, 66, 25, "Game Over!");
WriteLine();
WriteLine("Your opponent (O) is the winner of the game!");
WriteLine();
WriteLine("To close application, press ESC");
WriteLine("To play again, press ENTER.");
ReadLine();
ClearConsoleWindowArea();
Clear();
GameOver = false;
Grid = new char[, ] {
{ '-', '-', '-' },
{ '-', '-', '-' },
{ '-', '-', '-' }
};
FillRectangle(170, 189, 470, 191, Color.White);
FillRectangle(170, 289, 470, 291, Color.White);
FillRectangle(269, 90, 271, 390, Color.White);
FillRectangle(170, 389, 470, 391, Color.White);
FillRectangle(170, 89, 470, 91, Color.White);
FillRectangle(169, 90, 171, 390, Color.White);
FillRectangle(369, 90, 371, 390, Color.White);
FillRectangle(469, 90, 471, 390, Color.White);
break;
case -10:
ClearRaster();
OpenConsoleWindow(4, 4, 66, 25, "Game Over!");
WriteLine();
WriteLine("Congratulations you (X) is the winner of the game!");
WriteLine();
WriteLine("To close application, press ESC");
WriteLine("To play again, press ENTER.");
ReadLine();
ClearConsoleWindowArea();
Clear();
GameOver = false;
Grid = new char[, ] {
{ '-', '-', '-' },
{ '-', '-', '-' },
{ '-', '-', '-' }
};
FillRectangle(170, 189, 470, 191, Color.White);
FillRectangle(170, 289, 470, 291, Color.White);
FillRectangle(269, 90, 271, 390, Color.White);
FillRectangle(170, 389, 470, 391, Color.White);
FillRectangle(170, 89, 470, 91, Color.White);
FillRectangle(169, 90, 171, 390, Color.White);
FillRectangle(369, 90, 371, 390, Color.White);
FillRectangle(469, 90, 471, 390, Color.White);
break;
default:
if (!GridControll.IsMovePossible(Grid))
{
ClearRaster();
OpenConsoleWindow(4, 4, 66, 25, "Game Over!");
WriteLine();
WriteLine("It's Tie between you (X) and your opponent (O).");
WriteLine();
WriteLine("To close application, press ESC");
WriteLine("To play again, press ENTER.");
}
else
{
ClearRaster();
OpenConsoleWindow(4, 4, 66, 25, "Game Over!");
WriteLine();
WriteLine("You restarted the game.");
WriteLine();
WriteLine("To close application, press ESC");
WriteLine("To play again, press ENTER.");
}
ReadLine();
ClearConsoleWindowArea();
Clear();
GameOver = false;
Grid = new char[, ] {
{ '-', '-', '-' },
{ '-', '-', '-' },
{ '-', '-', '-' }
};
FillRectangle(170, 189, 470, 191, Color.White);
FillRectangle(170, 289, 470, 291, Color.White);
FillRectangle(269, 90, 271, 390, Color.White);
FillRectangle(170, 389, 470, 391, Color.White);
FillRectangle(170, 89, 470, 91, Color.White);
FillRectangle(169, 90, 171, 390, Color.White);
FillRectangle(369, 90, 371, 390, Color.White);
FillRectangle(469, 90, 471, 390, Color.White);
break;
}
}
}
Terminate();
}