import pygame
import random

WIDTH = 800
HEIGHT = 600
FPS = 60

# Цвета
WHITE = (255, 255, 255)
BLACK = (0, 0, 0)
RED = (255, 0, 0)
GREEN = (0, 255, 0)
BLUE = (0, 0, 255)

class Player(pygame.sprite.Sprite):
    def __init__(self):
        super().__init__()
        self.image = pygame.Surface((50, 50))
        self.image.fill(GREEN)
        self.rect = self.image.get_rect()
        self.rect.center = (WIDTH / 2, HEIGHT / 2)
        self.speed = 5

    def update(self):
        keys = pygame.key.get_pressed()
        if keys[pygame.K_LEFT]:
            self.rect.x -= self.speed
        if keys[pygame.K_RIGHT]:
            self.rect.x += self.speed
        if keys[pygame.K_UP]:
            self.rect.y -= self.speed
        if keys[pygame.K_DOWN]:
            self.rect.y += self.speed
        
        # Границы экрана
        if self.rect.left < 0: self.rect.left = 0
        if self.rect.right > WIDTH: self.rect.right = WIDTH
        if self.rect.top < 0: self.rect.top = 0
        if self.rect.bottom > HEIGHT: self.rect.bottom = HEIGHT

class Enemy(pygame.sprite.Sprite):
    def __init__(self):
        super().__init__()
        self.image = pygame.Surface((30, 30))
        self.image.fill(RED)
        self.rect = self.image.get_rect()
        self.rect.x = random.randrange(WIDTH)
        self.rect.y = random.randrange(-100, -40)
        self.speed_y = random.randrange(2, 8)

    def update(self):
        self.rect.y += self.speed_y
        if self.rect.top > HEIGHT:
            self.rect.x = random.randrange(WIDTH)
            self.rect.y = random.randrange(-100, -40)
            self.speed_y = random.randrange(2, 8)

# Инициализация
pygame.init()
pygame.mixer.init()
screen = pygame.display.set_mode((WIDTH, HEIGHT))
pygame.display.set_caption("Игра")
clock = pygame.time.Clock()

# Группы
all_sprites = pygame.sprite.Group()
mobs = pygame.sprite.Group()
player = Player()
all_sprites.add(player)

for i in range(8):
    m = Enemy()
    all_sprites.add(m)
    mobs.add(m)

# Переменные
score = 0
font = pygame.font.SysFont("Arial", 24)
running = True

# Цикл
while running:
    clock.tick(FPS)
    
    # События
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False

    # Обновление
    all_sprites.update()
    
    # Коллизии
    hits = pygame.sprite.spritecollide(player, mobs, False)
    if hits:
        running = False

    # Отрисовка
    screen.fill(BLACK)
    all_sprites.draw(screen)
    
    # Интерфейс
    score_text = font.render(f"Счёт: {score}", True, WHITE)
    screen.blit(score_text, (10, 10))
    
    pygame.display.flip()

pygame.quit()