cassidoo-rock-paper-scissors.py

import random

# First element is the attack, the following elements are weaknesses
attacks = [
    ['rock', 'paper'],
    ['paper', 'scissors'],
    ['scissors', 'rock']
]

# Tracking game progress
games_won = 0
games_lost = 0

def play_game():
    global games_won 
    global games_lost

    # Ask for the player's attack
    user_input = input('Your move: ')
    print()

    # Make sure the user input is valid
    valid_input = False
    for att in attacks:
        if user_input == att[0]:
            valid_input = True 
            user_attack = att

    if (valid_input != True):
        print('You can\'t use that attack!')
        exit()

    # Choose a random attack for the computer
    computer_attack = random.choice(attacks)

    print(f'You used: {user_attack[0]}')
    print(f'The Computer used: {computer_attack[0]}')
    print()

    # See who wins by comparing attack weaknesses
    if (user_attack[0] == computer_attack[0]):
        print('It\'s a tie!')
    elif (computer_attack[0] in user_attack):
        print('You lost this round!')
        games_lost += 1
    elif (user_attack[0] in computer_attack):
        print('You won this round!')
        games_won += 1

if __name__ == "__main__":
    games_to_play = int(input('How many games would you like to play? '))
    games_to_win = int(games_to_play/2 + 1)

    print()
    print(f'You need to win {games_to_win} games')

    # Play until someone wins enough rounds
    while(games_won < games_to_win and games_lost < games_to_win):
        play_game()

        print(f'You: {games_won}')
        print(f'Computer: {games_lost}')
    print()

    print(f'Final Score: {games_won} - {games_lost}')
    if (games_won > games_lost):
        print('You beat the Computer!')
    else:
        print('Better luck next time!')

    print()