rock, paper and scissors

import random

def get_user_choice():
    # Get user input for their choice, ensure it's valid
    user_choice = input("Enter your choice (Rock, Paper, or Scissors): ").capitalize()
    while user_choice not in ["Rock", "Paper", "Scissors"]:
        print("Invalid choice. Please choose Rock, Paper, or Scissors.")
        user_choice = input("Enter your choice (Rock, Paper, or Scissors): ").capitalize()
    return user_choice

def get_computer_choice():
    # Generate a random choice for the computer
    choices = ["Rock", "Paper", "Scissors"]
    return random.choice(choices)

def determine_winner(user_choice, computer_choice):
    # Determine the winner based on the game rules
    if user_choice == computer_choice:
        return "It's a tie!", 0
    elif (user_choice == "Rock" and computer_choice == "Scissors") or \
         (user_choice == "Paper" and computer_choice == "Rock") or \
         (user_choice == "Scissors" and computer_choice == "Paper"):
        return "You win!", 1
    else:
        return "Computer wins!", -1

def main():
    # Main function to execute the game
    print("Welcome to Rock, Paper, Scissors!")

    user_score = 0
    computer_score = 0
    rounds = 0

    while True:
        user_choice = get_user_choice()
        computer_choice = get_computer_choice()

        print(f"You chose {user_choice}.")
        print(f"Computer chose {computer_choice}.")

        result, score_change = determine_winner(user_choice, computer_choice)
        print(result)

        user_score += score_change
        computer_score -= score_change
        rounds += 1

        print(f"Score after {rounds} rounds: You {user_score} - {computer_score} Computer")

        play_again = input("Do you want to play again? (yes/no): ").lower()
        if play_again != "yes":
            print("Thanks for playing! Final score:")
            print(f"You: {user_score} - Computer: {computer_score}")
            break

if __name__ == "__main__":
    main()