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def computer_move(board, computer,
human):
board = board[:] BEST_MOVES = [4,0,2,6,8,1,3,5,7] corners = [(0,8),(2,6)] print "I shall take square number", for move in legal_moves(board): board[move] = computer if winner(board) == computer: print move return move board[move] = EMPTY for move in legal_moves(board): board[move] = human if winner(board) == human: print move return move board[move] = EMPTY for move in legal_moves(board): # trying to prevent trap of taking 2 corners first with the computer always taking the center board[move] = computer for pair in corners: if board[pair[0]] == board[pair[1]] == human: # checking if corners human BEST_MOVES = [1,3,5,7] print move return move board[move] = EMPTY for move in BEST_MOVES: if move in legal_moves(board): print move return move def next_turn(turn):
if turn == X: return O else: return X This is one of the functions in a tic tac toe game
from "Python Programming (for the absolute beginner)" by Michael Dawson and it
asks to improve on the computer AI.
I put in a list with the name corners to have it
test the board and if I have taken 2 diagonal corners then have the computer use
a new list of BEST_MOVES for a reply.
It works if I have taken corners pair (0,8)
from the list but not when I take the (2,6) pair. I have reversed the pairs in
the 'corners' list but it still only works with the (0,8)
pair. Do you need the code for the entire game to
follow my train of thought? I am an extreme newbie as I'm sure you can tell, and
I have spent hours trying to
complete this exercise. Many thanks in advance for
any advice you can pass along.
Steve Brozo
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