Почему не работает код? python

 import math  
import time  
import random  
 
# Дополнительные переменные  
 
entities = ["Манекен 100 0 0", "Зомби 20 2 1", "Скелет 12 4 0"]  
hp_player = 20  
max_hp_player = hp_player  
damage_player = 1  
armor_player = 0  
 
# Функции  
 
def start_fight():  
    random_entity = random.choice(entities)  
    entity_data = random_entity.split()  
     
    name_entity = entity_data[0]  
    hp_entity = int(entity_data[1])  
    max_hp_entity = hp_entity  
    damage_entity = int(entity_data[2])  
    armor_entity = int(entity_data[3])  
     
    potions_amount = 3  
     
    print(f"""  
        Битва началась:  
         
        Статистика {name_entity}:  
        Здоровье {hp_entity}  
        Урон {damage_entity}  
        Защита {armor_entity}.  
         
        Статистика {name_player}:  
        Здоровье {hp_player}  
        Урон {damage_player}  
        Защита {armor_player}.  
        """)  
     
    while hp_player > 0 and hp_entity > 0:  
        choice_action()  
        time.sleep(3)  
        attack_entity()  
        attack_player() 
 
def attack_entity():  
    damage = random.randint(0, damage_entity)  
    damage -= armor_player  
    print(f"Ваш враг атакует вас и наносит {damage} урона.")  
    hp_entity -= damage  
    time.sleep(2) 
 
def attack_player():  
    damage = random.randint(0, damage_player)  
    damage -= armor_entity  
    print(f"Вы атакуете врага и наносите {damage} урона.")  
    hp_player -= damage  
    time.sleep(2) 
 
def heal_player():  
    if potions_amount > 0:  
        hp_player += max_hp_player // 10  
        print(f"Вы исцелились на {max_hp_player // 10} здоровья.")  
        potions_amount -= 1  
    else:  
        print("У вас не осталось зелий исцеления.") 
 
def choice_action():  
    choice_player = input("Выберите ход:\n1. Атаковать\n2. Исцелиться.\n")  
    if choice_player == '1':  
        attack_player()  
    elif choice_player == '2':  
        heal_player()  
 
def play():  
    play = input("Вы готовы начать игру? (д/н)\n")  
    if play == 'д':  
        start_fight()  
    elif play == 'н':  
        play_correctly = input("Уверены? (д/н)\n")  
        if play_correctly == 'д':  
            exit()  
        elif play_correctly == 'н':  
            play()  
 
name_player = input("Введите ваш никнейм: ")  
 
play()