alien_invasion.py

import pygame

from settings import Settings
from ship import Ship
import game_functions as gf
from pygame.sprite import Group
from game_stats import GameStats
from button import Button



def run_game():
    pygame.init()
    ai_settings = Settings()
    screen = pygame.display.set_mode((ai_settings.screen_width, ai_settings.screen_height))
    # 创建Play按钮
    play_button = Button(ai_settings, screen, "Play")
    pygame.display.set_caption("Alien Invasion")
    # 创建一个用于存储游戏统计信息的实例
    stats = GameStats(ai_settings)
    # 创建一艘飞船、一个子弹编组和一个外星人编组
    ship = Ship(ai_settings, screen)
    bullets = Group()
    aliens = Group()

    # 创建外星人群
    gf.create_fleet(ai_settings, screen, ship, aliens)

    while True:
        gf.check_events(ai_settings, screen, stats, play_button, ship, aliens, bullets)
        if stats.game_active:
            ship.update()
            bullets.update()
        # 删除已消失的子弹
            gf.update_bullets(ai_settings, screen, ship, aliens, bullets)
            gf.update_aliens(ai_settings, stats, screen, ship, aliens, bullets)

        print(len(bullets))
        gf.update_screen(ai_settings, screen, stats, ship, aliens, bullets, play_button)


run_game()