p1010

p1010.cs

// TicTacToe program

using System;

class p1010
{
    private int[,] board = new int[3, 3];

    public p1010()    //constructor
    {
        // initialize board with all zeros
        for (int i = 0; i < 3; i++)            // rows
        {
            for (int j = 0; j < 3; j++)        // columns
            {
                board[i, j] = 0;               // initialize empty board
            }
        }
    }

    public void player1Move(int row, int column)   
    {
        board[row, column] = 1;
    }

    public void player2Move(int row, int column)
    {
        board[row, column] = 2;
    }

    public bool checkPlayer1Win()
    {
        // all possibilities for player 1 to win
        return (board[0, 0] == 1 && board[0, 1] == 1 && board[0, 2] == 1
                || board[1, 0] == 1 && board[1, 1] == 1 && board[1, 2] == 1
                || board[2, 0] == 1 && board[2, 1] == 1 && board[0, 2] == 1

                || board[0, 0] == 1 && board[1, 0] == 1 && board[2, 0] == 1
                || board[0, 1] == 1 && board[1, 1] == 1 && board[2, 1] == 1
                || board[0, 2] == 1 && board[1, 2] == 1 && board[2, 2] == 1

                // diagonal
                || board[2, 0] == 1 && board[1, 1] == 1 && board[0, 2] == 1
                || board[0, 0] == 1 && board[1, 1] == 1 && board[2, 2] == 1);
    }

    public bool checkPlayer2Win()
    {
        // all possibilites for player 2 to win
        return (board[0, 0] == 2 && board[0, 1] == 2 && board[0, 2] == 2
                || board[1, 0] == 2 && board[1, 1] == 2 && board[1, 2] == 2
                || board[2, 0] == 2 && board[2, 1] == 2 && board[0, 2] == 2

                || board[0, 0] == 2 && board[1, 0] == 2 && board[2, 0] == 2
                || board[0, 1] == 2 && board[1, 1] == 2 && board[2, 1] == 2
                || board[0, 2] == 2 && board[1, 2] == 2 && board[2, 2] == 2

                // diagonal
                || board[2, 0] == 2 && board[1, 1] == 2 && board[0, 2] == 2
                || board[0, 0] == 2 && board[1, 1] == 2 && board[2, 2] == 2);
    }

    public bool checkEmpty(int row, int col)
    {
        for (int i = 0; i < 3; i++)
        {
            for (int j = 0; j < 3; j++)
            {
                // if there is a 1 or 2 in the selected row and column
                // then this square is not empty or available
                if (board[row, col] == 1 || board[row, col] == 2)
                {
                    return false;
                }
            }
        }
        return true;
    }

    public bool checkDraw()
    {
        for (int i = 0; i < 3; i++)
        {
            for (int j = 0; j < 3; j++)
            {
                // if there is any place within the board
                // that has a zero, there are available spots
                // so there is not yet a draw
                if (board[i, j] == 0)
                {
                    return false;
                }
            }
        }
        return true;
    }

    public void displayBoard()
    {
        for (int i = 0; i < 3; i++)
        {
            for (int j = 0; j < 3; j++)
            {
                Console.Write(board[i, j] + " ");
            }
            Console.WriteLine();
        }
        Console.WriteLine();
    }

}