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Code: Alles auswählen

import Tkinter

from random import randint

#stores the current player 
global player   

player = 'x'

def who_wins(board):

    """
    Determines winner of a supplied tictactoe board.
    Expects a 9 element list as representation for the board
    with "x" and "o" representing the players.
    Returns "x" when x has won and "o" when o has won.
    Returns nothing when no one has won
    """ 

    # the 3 horizontal 3 vertical and 2 diagonal winning possibilities

    rows = [(0,1,2), (3,4,5), (6,7,8), (0,3,6), (1,4,7), (2,5,8), 
            (0,4,8), (2,4,6),]

    for a, b, c in rows:
        if board[a] + board[b] + board[c] == 'xxx':
            return 'x'
        elif board[a] + board[b] + board[c] == 'ooo':
            return 'o'
    #return

def put(board, symbol, position):

    """
    Places a symbol on a tictactoe board.
    Expects a 9 element list representing a board, a symbol
    and the position where to place the symbol in the list.
    If the list contains a "." where the symbol should go 
    it is placed there and a 0 returned.
    If the list doesn't contain a "." where the symbol should go
    the function returns 1
    """

    show(board)
    if board[position] != ".":
        return 1
    if board[position] == ".":
        board[position] = symbol
        next_round()
    return 0

def show(board):

    """shows the board and status messages"""

    for i in range(9):
        if board[i] == 'o':
            ttt_button[i].config(image=ocell)
        elif board[i] == 'x':
            ttt_button[i].config(image=xcell)



    if (board.count(".") == 0) and (who_wins(board) != ("x" or "o")):
        label1.config(text="It's a Draw!")
        game_over()

    if who_wins(board) == ("x"):
        label1.config(text="X wins!")
        game_over()

    if who_wins(board) == ("o"):
        label1.config(text="O wins!")
        game_over()

def computer_play():

    """place an 'o' on a random free space"""

    while board.count(".") > 0:
        RandomPosition = randint(0,8)
        #try to put o on random position
        if not put(board, "o", RandomPosition):    
            #The position was free, break the while loop    
            break    

def next_round():
    
    """show board and change player"""

    show(board)
    global player
    if player == 'o':
        player = 'x'
    elif player == 'x':
        player = 'o'
        computer_play() 

def game_over():

    """disables all buttons"""

    for b in ttt_button:
        b.config(state = "disabled")
        
root=Tkinter.Tk()

#supplied .png images have been converted to gif
bcell = Tkinter.PhotoImage(file='bcell.gif')
ocell = Tkinter.PhotoImage(file='ocell.gif')
xcell = Tkinter.PhotoImage(file='xcell.gif')
board = [".",".",".",".",".",".",".",".","."]

#create list with 9 button widgets
ttt_button = []
for i in range(9):
    b = Tkinter.Button(image=bcell, command=lambda i=i: put(board, player, i))
    # the lambda construct is necessary or we end up passing the result of put
    ttt_button.append(b)

# arrange widgets on 3x3 grid
for row in range(3):
    for column in range(3):
        ttt_button[row*3+column].grid(row=row, column=column)        

label1 = Tkinter.Label(text="playing Tic Tac Toe")
label1.grid(row=3, column=0, columnspan = 3)

root.mainloop()

Code: Alles auswählen

    rows = [(0,1,2), (3,4,5), (6,7,8), (0,3,6), (1,4,7), (2,5,8),
            (0,4,8), (2,4,6),]

    for a, b, c in rows:
        if board[a] + board[b] + board[c] == 'xxx':
            return 'x'
        elif board[a] + board[b] + board[c] == 'ooo':
            return 'o'