Question

use python to do it

implement the tic-tac-toe game. What to submit: 1. Your source code 2. Two runs, one user wins and one user loses.

Answer 1

Here is the completed code for this problem. Comments are included, go through it, learn how things work and let me know if you have any doubts or if you need anything to change. If you are satisfied with the solution, please rate the answer. Thanks

#code

import random

# method to check if a player has three consecutive occurrences horizontally
def check_horizontally(ticTac, player):
    # Horizontal check for win
    # Loop through each row
    for row in ticTac:
        # assuming user has won
        winDetected = True
        for j in row:
            if j != player:
                # current value does not belong to the player, so not won
                winDetected = False
                break
        if winDetected:
            return True
    return False


# method to check if a player has three consecutive occurrences vertically
def check_vertically(ticTac, player):
    # vertical check
    for j in range(len(ticTac[0])):
        winDetected = True
        for i in range(len(ticTac)):
            if ticTac[i][j] != player:
                winDetected = False
                break
        if winDetected:
            return True
    return False


# method to check if a player has three consecutive occurrences diagonally
def check_diagonally(ticTac, player):
    # Diagonal check 1 (top left to bottom right)
    winDetected = True
    for i in range(len(ticTac)):
        if ticTac[i][i] != player:
            winDetected = False
            break
    if winDetected:
        return True

    # Diagonal check 2 (top right to bottom left)
    winDetected = True
    for i in range(len(ticTac)):
        if ticTac[len(ticTac) - 1 - i][i] != player:
            winDetected = False
            break
    if winDetected:
      return True
    return False


# method to check if a player has won. This will use other methods to check if
# a player with given value has won. To see if X has won, pass tic tac toe board
# and 'X' to the method, To see if O has won, pass tic tac toe board
# and 'O' to the method,
def hasWon(ticTac, player):
    # checking if user has won horizontally, vertically or diagonally
    if check_horizontally(ticTac, player):
        return True
    if check_vertically(ticTac, player):
        return True
    if check_diagonally(ticTac, player):
        return True
    return False

#method to make move to the board, here ticTac is the board
#player is player's character and computer is a flag to denote if
#this is computer's turn or not
def make_move(ticTac, player, computer=False):
    #if no more moves left, not doing anything
    if no_moves_left(ticTac):
        return
    #if computer's turn, generating a random move
    if computer:
        #loops until a random empty location is found
        while True:
            i=random.randint(0,len(ticTac)-1)
            j=random.randint(0,len(ticTac[0])-1)
            if ticTac[i][j]==' ':
                #found
                print('Computer chose row: {} and col: {}'.format(i,j))
                ticTac[i][j]=player
                break #end of loop
    else:
        #loops until valid row, column indices are entered
        while True:
            print('Your turn')
            i =int(input('Row index: '))
            j = int(input('Column index: '))
            if i<0 or i>=len(ticTac) or j<0 or j>=len(ticTac[0]):
                #invalid
                print('Invalid row/column')
                continue #continuing loop
            if ticTac[i][j] == ' ':
                #valid
               ticTac[i][j] = player
                break
            else:
                print('That position is already occupied, try another')

#method to check if there are no more moves left
def no_moves_left(ticTac):
    for i in range(len(ticTac)):
        for j in range(len(ticTac[0])):
            if ticTac[i][j]==' ':
                #empty space found
                return False
    return True #no empty spaces

#method to print the board
def print_board(ticTac):
    for i in ticTac:
        for j in i:
          print('[{}]'.format(j),end=' ')
        print()

#method to play the game for once
def play():
    #creating board
    ticTac=[]
    for i in range(3):
        ticTac.append([' ',' ',' '])
    #defining characters for player and computer
    player='X'
    computer='O'
    #starting with random player's turn(either computer or player)
    player_turn = True
    if random.randint(0,1)==0:
        player_turn=False
    print('Player take X and Computer take O')
    if player_turn:
        print('Player starts first')
    else:
        print('Computer starts first')
    #loops until no_moves_left or win
    while not no_moves_left(ticTac):
        #printing board
        print_board(ticTac)
        #checking if player's turn
        if player_turn:
            #making player's move
            make_move(ticTac,player,computer=False)
            #checking if won
            if hasWon(ticTac,player):
                #won
                print('Congratulations, user wins')
                break
        else:
            #computer's move
            make_move(ticTac,computer,computer=True)
            if hasWon(ticTac,computer):
                print('Computer wins')
                break
        #checking if tied
        if no_moves_left(ticTac):
            print('Its a tie!')
        player_turn=not player_turn

#playing one round
play()

#output 1



Player take X and Computer take O

Player starts first

[ ] [ ] [ ]

[ ] [ ] [ ]

[ ] [ ] [ ]

Your turn

Row index: 0

Column index: 0

[X] [ ] [ ]

[ ] [ ] [ ]

[ ] [ ] [ ]

Computer chose row: 0 and col: 2

[X] [ ] [O]

[ ] [ ] [ ]

[ ] [ ] [ ]

Your turn

Row index: 1

Column index: 0

[X] [ ] [O]

[X] [ ] [ ]

[ ] [ ] [ ]

Computer chose row: 2 and col: 0

[X] [ ] [O]

[X] [ ] [ ]

[O] [ ] [ ]

Your turn

Row index: 1

Column index: 1

[X] [ ] [O]

[X] [X] [ ]

[O] [ ] [ ]

Computer chose row: 0 and col: 1

[X] [O] [O]

[X] [X] [ ]

[O] [ ] [ ]

Your turn

Row index: 1

Column index: 2

Congratulations, user wins







#output 2





Player take X and Computer take O

Computer starts first

[ ] [ ] [ ]

[ ] [ ] [ ]

[ ] [ ] [ ]

Computer chose row: 0 and col: 0

[O] [ ] [ ]

[ ] [ ] [ ]

[ ] [ ] [ ]

Your turn

Row index: 0

Column index: 1

[O] [X] [ ]

[ ] [ ] [ ]

[ ] [ ] [ ]

Computer chose row: 0 and col: 2

[O] [X] [O]

[ ] [ ] [ ]

[ ] [ ] [ ]

Your turn

Row index: 1

Column index: 0

[O] [X] [O]

[X] [ ] [ ]

[ ] [ ] [ ]

Computer chose row: 2 and col: 1

[O] [X] [O]

[X] [ ] [ ]

[ ] [O] [ ]

Your turn

Row index: 1

Column index: 1

[O] [X] [O]

[X] [X] [ ]

[ ] [O] [ ]

Computer chose row: 1 and col: 2

[O] [X] [O]

[X] [X] [O]

[ ] [O] [ ]

Your turn

Row index: 2

Column index: 0

[O] [X] [O]

[X] [X] [O]

[X] [O] [ ]

Computer chose row: 2 and col: 2

Computer wins