static int CheckFour(char[,] board, playerDetail activePlayer)
{
char XO;
int winFlag;
XO = activePlayer.playerID;
winFlag = 0;
for (int i = 8; i >= 1; --i)
{
for (int j = 9; j >= 1; --j)
{
if (board[i, j] == XO &&
board[i - 1, j - 1] == XO &&
board[i - 2, j - 2] == XO &&
board[i - 3, j - 3] == XO)
{
winFlag = 1;
}
if (board[i, j] == XO &&
board[i, j - 1] == XO &&
board[i, j - 2] == XO &&
board[i, j - 3] == XO)
{
winFlag = 1;
}
if (board[i, j] == XO &&
board[i - 1, j] == XO &&
board[i - 2, j] == XO &&
board[i - 3, j] == XO)
{
winFlag = 1;
}
if (board[i, j] == XO &&
board[i - 1, j + 1] == XO &&
board[i - 2, j + 2] == XO &&
board[i - 3, j + 3] == XO)
{
winFlag = 1;
}
if (board[i, j] == XO &&
board[i, j + 1] == XO &&
board[i, j + 2] == XO &&
board[i, j + 3] == XO)
{
winFlag = 1;
}
}
}
return(winFlag);
}
static int PlayerChoice(char[,] board, playerDetail activePlayer)
{
int placeChoice;
Console.WriteLine(activePlayer.playerName + "'s Turn ");
do
{
Console.WriteLine("Enter a number between 1 and 7: ");
placeChoice = Convert.ToInt32(Console.ReadLine());
} while (placeChoice < 1 || placeChoice > 7);
while (board[1, placeChoice] == 'X' || board[1, placeChoice] == 'O')
{
Console.WriteLine("Row is full, enter a new row: ");
placeChoice = Convert.ToInt32(Console.ReadLine());
}
return(placeChoice);
}
static void PlaceTokenBellow(char[,] board, playerDetail activePlayer, int placeChoice)
{
int length, turn;
length = 6;
turn = 0;
do
{
if (board[length, placeChoice] != 'X' && board[length, placeChoice] != 'O')
{
board[length, placeChoice] = activePlayer.playerID;
turn = 1;
}
else
{
--length;
}
} while (turn != 1);
}
static void PlayerWin(playerDetail activePlayer)
{
Console.WriteLine("------- " + activePlayer.playerName + " Connected Four, You win! -------");
}
static void Main(string[] args)
{
playerDetail playerOne = new playerDetail();
playerDetail playerTwo = new playerDetail();
char[,] board = new char[9, 10];
int placeChoice, winFlag, fullBoardFlag, exitFlag;
Console.WriteLine("Player1 name: ");
playerOne.playerName = Console.ReadLine();
playerOne.playerID = 'X';
Console.WriteLine("Player2 name: ");
playerTwo.playerName = Console.ReadLine();
playerTwo.playerID = 'O';
fullBoardFlag = 0;
winFlag = 0;
exitFlag = 0;
DisplayBoard(board);
do
{
if (exitFlag != 1)
{
placeChoice = PlayerChoice(board, playerOne);
PlaceTokenBellow(board, playerOne, placeChoice);
DisplayBoard(board);
winFlag = CheckFour(board, playerOne);
if (winFlag == 1)
{
PlayerWin(playerOne);
exitFlag = 1;
}
}
if (exitFlag != 1)
{
placeChoice = PlayerChoice(board, playerTwo);
PlaceTokenBellow(board, playerTwo, placeChoice);
DisplayBoard(board);
winFlag = CheckFour(board, playerTwo);
if (winFlag == 1)
{
PlayerWin(playerTwo);
exitFlag = 1;
}
}
if (exitFlag != 1)
{
fullBoardFlag = FullBoard(board);
if (fullBoardFlag == 7)
{
Console.WriteLine("The board is full, it is a draw!");
exitFlag = 1;
}
}
} while (exitFlag != 1);
Console.WriteLine("Press a key to exit Connect4.....");
Console.ReadKey();
}
