randomPlayer.py

#
#
# Playing the game 
#   

from board import Board
from player import Player
import random

class RandomPlayer(Player):
        def next_move(self, board):
            """overrides Player nextmove; adds checker to random col"""
            available = []
            for x in range(board.width):
                if board.can_add_to(x):
                    available += [x]
            move = random.choice(available)
            self.num_moves += 1
            return move
    
def connect_four(player1, player2):
    """ Plays a game of Connect Four between the two specified players,
        and returns the Board object as it looks at the end of the game.
        inputs: player1 and player2 are objects representing Connect Four
                  players (objects of the Player class or a subclass of Player).
                  One player should use 'X' checkers and the other should
                  use 'O' checkers.
    """
    # Make sure one player is 'X' and one player is 'O'.
    if player1.checker not in 'XO' or player2.checker not in 'XO' \
       or player1.checker == player2.checker:
        print('need one X player and one O player.')
        return None

    print('Welcome to Connect Four!')
    print()
    board = Board(6, 7)
    print(board)
    
    while True:
        if process_move(player1, board) == True:
            return board

        if process_move(player2, board) == True:
            return board

def process_move(player, board):
    """takes player object and board object and returns series of actions"""
    print(str(player)+ '\'s turn')
    player_move = player.next_move(board)
    board.add_checker(player.checker, player_move)
    print()
    print(board)
    if board.is_win_for(player.checker):
        print(player, 'wins in', player.num_moves, 'moves.')
        print('Congratulations!')
        return True
    elif board.is_full():
        print('It\'s a tie!')
        return True
    else:
        return False