# checks for an interger more than 0 (allows <enter>)
def int_check(question):
    while True:
        error = "Please enter an integer that is 1 or more."

        to_check = input(question)

        # check for infinite mode
        if to_check == "":
            return "infinite"

        try:
            response = int(to_check)

            # checks that the number is more than / equal to 1
            if response < 1:
                print(error)
            else:
                return response

        except ValueError:
            print(error)


# Main Routine Starts here

# Intilaise game variables
mode = "regular"
rounds_played = 0


print("Rock / Paper / Scissors Game")
print()

# Instructions

# Ask user for number of rounds / infinite mode
num_rounds = int_check("How many rounds would you like? Push <enter> for infinite mode: ")

if num_rounds == "infinite":
    mode = "infinite"
    num_rounds = 5

# Game loop starts here
while rounds_played < num_rounds:

    # Rounds heading
    if mode == "infinite":
        rounds_heading = f"\n Round {rounds_played + 1} (infinite Mode)"
    else:
        rounds_heading = f"\n Rounds {rounds_played + 1} of {num_rounds} "

    print(rounds_heading)
    print()


    user_choice = input("Choose: ")

    if user_choice == "xxx":
        break


    rounds_played += 1

    # if users are in infinite mode, increase numver of rounds!
    if mode == "infinite":
        num_rounds += 1

# Game loop ends here

# Game History / Statistics area