code:

import random
import time

def roll_dice():
    return random.randint(1, 6)

def take_turn(current_player, player_one_score, player_two_score):
    print(f"It's {current_player}'s turn.")
    turn_score = 0

    def roll_again():
        nonlocal turn_score
        roll = roll_dice()
        print(f"{current_player} rolls a {roll}")
        time.sleep(1)  # for ease of play

        if roll == 1:
            print("You rolled a 1. Switching to the other player's turn.")
            time.sleep(1)
            return switch_player(current_player, turn_score, player_one_score, player_two_score)
        else:
            turn_score += roll
            print(f"{current_player}'s score: {player_one_score + turn_score if current_player == 'Player One' else player_two_score + turn_score}")
            choice = input("Roll again? (y/n): ").lower()
            if choice == 'n':
                return switch_player(current_player, turn_score, player_one_score, player_two_score)
            return roll_again()

    return roll_again()

def switch_player(current_player, turn_score, player_one_score, player_two_score):
    if current_player == "Player One":
        player_one_score += turn_score
        current_player = "Player Two"
    else:
        player_two_score += turn_score
        current_player = "Player One"
    
    if player_one_score >= 30 or player_two_score >= 30:
        return (player_one_score, player_two_score)
    
    return take_turn(current_player, player_one_score, player_two_score)

def play_game():
    player_one_score, player_two_score = take_turn("Player One", 0, 0)
    if player_one_score >= 30:
        print(f"Congratulations! Player One wins with a score of {player_one_score}")
    elif player_two_score >= 30:
        print(f"Congratulations! Player Two wins with a score of {player_two_score}")

play_game()