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# Create a functioning 2-player Tic-Tac-Toe game
# Step 1: Write a function that can print out a board. Set up your board as a list, where each index 1-9 corresponds with a number on a number pad, so you get a 3 by 3 board representation.
def display_board(board): #display_board is function, board is parameter
print('\n'*50) # creates the illusion of a clear output
print(board[7] + ' | ' + board[8] + ' | ' + board[9])
print('--|---|--')
print(board[4] + ' | ' + board[5] + ' | ' + board[6])
print('--|---|--')
print(board[1] + ' | ' + board[2] + ' | ' + board[3])
test_board = ['#','X','O','X','O','X','O','X','O','X'] # temporarily fills out board to see how it looks
display_board(test_board)
# Step 2: Write a function that can take in a player input and assign their marker as 'X' or 'O'.
def player_input():
marker = ''
while marker != 'X' and marker != 'O':
marker = input('\n Player 1: Do you want to be X or O ? ').upper()
if marker == 'X':
return('X','O')
else:
return('O','X')
# Step 3: Write a function that takes in the board list object, a marker ('X' or 'O'), and a desired position (number 1-9) and assigns it to the board.
def place_marker(board, marker, position):
board[position] = marker # board at that position is equal to marker
place_marker(test_board,':)',8)
# Step 4: Write a function that takes in a board and checks to see if someone has won.
def win_check(board, mark):
return(
(board[7] == mark and board[8] == mark and board[9] == mark) or
(board[4] == mark and board[5] == mark and board[6] == mark) or
(board[1] == mark and board[2] == mark and board[3] == mark) or
(board[7] == mark and board[4] == mark and board[1] == mark) or
(board[8] == mark and board[5] == mark and board[2] == mark) or
(board[9] == mark and board[6] == mark and board[3] == mark) or
(board[1] == mark and board[5] == mark and board[9] == mark) or
(board[7] == mark and board[5] == mark and board[3] == mark)
)
# print(win_check(test_board, 'X')) # should output True if X is a winner
# Step 5: Write a function that uses the random module to randomly decide which player goes first.
import random
def choose_first():
if random.randint(0,1) == 0:
return 'Player 2'
else:
return 'Player 1'
# Step 6: Write a function that returns a boolean indicating whether a space on the board is freely available.
def space_check(board, position):
return board[position] == ' '
# Step 7: Write a function that checks if the board is full and returns a boolean value. True if full, False otherwise.
def full_board_check(board):
for i in range(1,10):
if space_check(board, i):
return False
return True
# Step 8: Write a function that asks for a player's next position (as a number 1-9) and then uses the function from step 6 to check if its a free position. If it is, then return the position for later use.
def player_choice(board):
position = 0
while position not in [1,2,3,4,5,6,7,8,9] or not space_check(board, position):
position = int(input('Choose your next position: (1-9) '))
return position
# Step 9: Write a function that asks the player if they want to play again and returns a boolean True if they do want to play again.
def replay():
return input('Do you want to play again? Enter Yes or No ').lower().startswith('y')
# Step 10: Here comes the hard part! Use while loops and the functions you've made to run the game!
print('Welcome to Tic Tac Toe!')
while True:
# Reset the board
theBoard = [' '] *10
player1_marker, player2_marker = player_input()
turn = choose_first()
print(turn + ' will go first.')
play_game = input('Are you ready to play? Enter Yes or No.')
if play_game.lower()[0] == 'y':
game_on = True
else:
game_on = False
while game_on:
if turn == 'Player 1':
# Player1's turn.
display_board(theBoard)
position = player_choice(theBoard)
place_marker(theBoard, player1_marker, position)
if win_check(theBoard, player1_marker):
display_board(theBoard)
print('Congratulations! You won the game!')
game_on = False
else:
if full_board_check(theBoard):
display_board(theBoard)
print('The game is a draw')
break
else:
turn = 'Player 2'
else:
# Player2's turn.
display_board(theBoard)
position = player_choice(theBoard)
place_marker(theBoard, player2_marker, position)
if win_check(theBoard, player2_marker):
display_board(theBoard)
print('Player 2 has won!')
game_on = False
else:
if full_board_check(theBoard):
display_board(theBoard)
print('The game is a draw')
break
else:
turn = 'Player 1'
if not replay():
break