rps.py

import random

def get_computer_choice():
    choices = ['rock', 'paper', 'scissors']
    return random.choice(choices)

def get_user_choice():
    choice = input("Enter rock, paper, or scissors: ").lower()
    while choice not in ['rock', 'paper', 'scissors']:
        choice = input("Invalid input. Please enter rock, paper, or scissors: ").lower()
    return choice

def determine_winner(user_choice, computer_choice):
    if user_choice == computer_choice:
        return "tie"
    elif (user_choice == 'rock' and computer_choice == 'scissors') or \
         (user_choice == 'scissors' and computer_choice == 'paper') or \
         (user_choice == 'paper' and computer_choice == 'rock'):
        return "user"
    else:
        return "computer"

def play_game():
    user_score = 0
    computer_score = 0
    
    while True:
        user_choice = get_user_choice()
        computer_choice = get_computer_choice()
        print(f"Computer chose: {computer_choice}")
        
        winner = determine_winner(user_choice, computer_choice)
        
        if winner == "user":
            user_score += 1
            print("You win this round!")
        elif winner == "computer":
            computer_score += 1
            print("Computer wins this round!")
        else:
            print("It's a tie!")
        
        print(f"Score: You {user_score} - Computer {computer_score}")
        
        play_again = input("Play again? (yes/no): ").lower()
        if play_again != "yes":
            break

if __name__ == "__main__":
    play_game()