# A computer simulation of the Monty Hall problem,
# a counter-intuitive logic and probability puzzle.
# by @blogmywiki - www.suppertime.co.uk/blogmywiki

print('Welcome to the\n'
'    __  ___            __           __  __      ____\n'
'   /  |/  /___  ____  / /___  __   / / / /___ _/ / /\n'
'  / /|_/ / __ \/ __ \/ __/ / / /  / /_/ / __ `/ / / \n'
' / /  / / /_/ / / / / /_/ /_/ /  / __  / /_/ / / /  \n'
'/_/  /_/\____/_/ /_/\__/\__, /  /_/ /_/\__,_/_/_/   \n'
'                      /____/ show\n'
'        |-----------------------|\n'
'door no.|   0   |   1   |   2   |\n'
'        |-----------------------|\n'
'        | goat  |  goat |  car  |\n'
'        |-----------------------|\n')

while True:

    import random
    
    print()
    answer = input('How many games do you want to simulate? (q to quit) ')
    if answer == "q":
        break
    else:
        tries = int(answer)

    doors = ['goat','goat','car']
    # door no. 0      1      2

    # I don't think it matters that these are not random
    # and keeping this fixed makes coding easier. 

    # Both players will pick the same door, but
    # when a door is opened with a goat behind it,
    # player1 will always stick with their 1st choice
    # whereas player2 will always change.
    # We will then keep a tally of who won more cars.

    player1_tally = 0
    player2_tally = 0

    for i in range(tries):

        chosen_door = random.randint(0,2)
        # pick a random door number between 0 and 2

        print('Game',i)
        print ('door',chosen_door,'chosen, containing a',doors[chosen_door])
        player1_choice = chosen_door
        if chosen_door == 0:
            player2_choice = 2
            print('Host opens door 1, player2 switches choice to door 2')
        elif chosen_door == 1:
            player2_choice = 2
            print('Host opens door 0, player2 switches choice to door 2')
        elif chosen_door == 2:
            player2_choice = 1
            print('Host opens door 0, player2 switches choice to door 1')

        if doors[player1_choice] == "car":
            print('Player 1 won a car!')
            player1_tally = player1_tally + 1

        if doors[player2_choice] == "car":
            print('Player 2 won a car!')
            player2_tally = player2_tally + 1

        print()

    print('Player 1 who stuck won',player1_tally,'cars.')
    print('Player 2 who changed won',player2_tally,'cars.')