import pygame
from pygame.sprite import Group

from settings import Settings
from game_stats import GameStats
from scoreboard import Scoreboard
from button import Button
from man import Man
import game_functions as gf

def run_game():
    # 初始化 pygame, settings, and screen object.
    pygame.init()
    ai_settings = Settings()
    screen = pygame.display.set_mode(
        (ai_settings.screen_width, ai_settings.screen_height))
    pygame.display.set_caption("Alien Invasion")

    # 制作开始游戏按钮
    play_button = Button(ai_settings, screen, "Play")

    # 创建一个实例来存储游戏统计信息和记分板。
    stats = GameStats(ai_settings)
    sb = Scoreboard(ai_settings, screen, stats)

    # 设置背景颜色
    bg_color = (230, 230, 230)

    # Make a ship, a group of bullets, and a group of aliens.
    man = Man(ai_settings, screen)
    bullets = Group()
    bazis = Group()

    # 创造靶子队列
    gf.create_fleet(ai_settings, screen, man, bazis)

    # 开始游戏的主循环
    while True:
        gf.check_events(ai_settings, screen, stats, sb, play_button, man,
                        bazis, bullets)

        if stats.game_active:
            man.update()
            gf.update_bullets(ai_settings, screen, stats, sb, man, bazis,
                              bullets)
            gf.update_bazis(ai_settings, screen, stats, sb, man, bazis,
                             bullets)

        gf.update_screen(ai_settings, screen, stats, sb, man, bazis,
                         bullets, play_button)


if __name__ == "__main__":
    try:
        run_game()
    except SystemExit:
        pass
    except:
        # traceback.print_exc()
        pygame.quit()
        input()