Answer to Question #231276 in Python for bhuvana

Question

Abhinav and Anjali are playing the Tic-Tac-Toe game. Tic-Tac-Toe is a game played on a grid that's three squares by three squares. Abhinav is O, and Anjali is X. Players take turns putting their marks in empty squares. The first player to get 3 of her marks in a diagonal or horizontal, or vertical row is the winner. When all nine squares are complete, the game is over. If no player has three marks in a row, the game ends in a tie. Write a program to decide the winner in the Tic-Tac-Toe game.

Answer 1

class TicTacToeGame:


    def __init__(self):
        self.board = []


    def initBoard(self):
        for i in range(3):
            row = []
            for j in range(3):
                row.append('-')
            self.board.append(row)


    def setSymbol(self, row, col, player):
        self.board[row][col] = player


    def checkWinner(self, player):
        isWinner = None
        n = len(self.board)
        for i in range(n):
            isWinner = True
            for j in range(n):
                if self.board[i][j] != player:
                    isWinner = False
                    break
            if isWinner:
                return isWinner


        for i in range(n):
            isWinner = True
            for j in range(n):
                if self.board[j][i] != player:
                    isWinner = False
                    break
            if isWinner:
                return isWinner


        isWinner = True
        for i in range(n):
            if self.board[i][i] != player:
                isWinner = False
                break
        if isWinner:
            return isWinner


        isWinner = True
        for i in range(n):
            if self.board[i][n - 1 - i] != player:
                isWinner = False
                break
        if isWinner:
            return isWinner
        return False


        for row in self.board:
            for symbol in row:
                if symbol == '-':
                    return False
        return True


    def isDraw(self):
        for row in self.board:
            for symbol in row:
                if symbol == '-':
                    return False
        return True


    def swapPlayer(self, player):
        return 'X' if player == 'O' else 'O'


    def displayBoard(self):
        for row in self.board:
            for symbol in row:
                print(symbol, end=" ")
            print()


    def play(self):
        self.initBoard()
        player = 'X'
        while True:
            print(f"Player {player} turn")
            self.displayBoard()
            row= int(input("Enter row: "))
            col= int(input("Enter column: "))
            print()


            self.setSymbol(row - 1, col - 1, player)
            if self.checkWinner(player):
                print(f"Player {player} wins the game!")
                break
            if self.isDraw():
                print("Draw!")
                break
            player = self.swapPlayer(player)
        print()
        self.displayBoard()


ticTacToeGame = TicTacToeGame()
ticTacToeGame.play()