TicTicToe.py

#TicTacToe (Noughts and Crosses)

######################### Import dependencies

import os
import numpy as np

######################### Functions

def display_title_bar():
    ''' Clears the terminal screen, and displays a title bar.'''
    os.system('clear')
              
    print("\t***********************************************************")
    print("\t*  Welcome to TicTacToe/ Noughts and Crosses DUEL EDITION *")
    print("\t***********************************************************")
    print("\n")

def player_move(current_board,player):
	'''Player picks a square and makes their move'''
	token_dict = {1:'O',2:'X'}
	while True:
		try:
			player_choice = input("Player %d pick a row and a column [row, column]:"%player)
			current_board[player_choice[0],player_choice[1]]
			break
		#if input is invalid, make another choice
		except (NameError, TypeError, SyntaxError, IndexError) :
			print("Not a valid number! Try again")
	
	#if square is taken, make another choice
	while current_board[player_choice[0],player_choice[1]] != '':
		player_choice = input("Square already taken! Player %d pick a different row and a column [row, column]:"%player)

	current_board[player_choice[0],player_choice[1]] = token_dict[player]
	return current_board
	
def switch(player):
	'''switch players after each turn'''
	if player == 1:
		player = 2
	else:
		player = 1
	return player

def check_uniqueness(array):
	'''check any winning combinations in rows and columns'''
	unique_array = np.unique(array)
	if len(unique_array)==1 and '' not in unique_array:
		return 1
	else:
		return 0

def check_winner(current_board):
	'''check the current board to see if there's a winner'''

	win = False
	for i in range(3):
		if 1 in \
		{check_uniqueness(current_board[i]), # check rows
		 check_uniqueness(current_board[:,i]), # check columns
		 check_uniqueness([current_board[0,0], current_board[1,1], current_board[2,2]]), # diagonals
		 check_uniqueness([current_board[0,2], current_board[1,1], current_board[2,0]])}: # other diagonals
			win = True
	return win


######################## Setup

display_title_bar()
current_board = np.array([['','',''],['','',''],['','','']])
player = 1
print(current_board)

######################## Gameplay!

while True:
	current_board= player_move(current_board, player)
	print current_board
	if check_winner(current_board):
		print('Player %i is the winner!'%player)
		break
	elif '' not in current_board:
		print("It's a tie!")
		break
	else: 
		player = switch(player)