PYTHON游戏编程外星人入侵的完整实现思路,具体内容如下
准备工作:下载python,比如Anaconda3(64 bit),导入pygame游戏包
1.外星人设置,alien.py,代码:
import pygamefrom pygame.sprite import Spriteclass Alien(Sprite): """表示单个外星人的类""" def __init__(self,ai_settings,screen): """初始化外星人并设置其他位置""" super(Alien,self).__init__() self.screen = screen self.ai_settings = ai_settings #加载外星人图像,并设置其rect属性 self.image = pygame.image.load('images/alien.bmp') self.rect = self.image.get_rect() #每个外星人最初都在屏幕左上角附近 self.rect.x = self.rect.width self.rect.y = self.rect.height #存储外星人的准确位置 self.x = float(self.rect.x) def blitme(self): """在指定位置绘制外星人""" self.screen.blit(self.image,self.rect) def check_edges(self): """如果外星人位于屏幕边缘,就返回True""" screen_rect = self.screen.get_rect() if self.rect.right >= screen_rect.right: return True elif self.rect.left <= 0: return True def update(self): """向右移动外星人""" self.x += (self.ai_settings.alien_speed_factor * self.ai_settings.fleet_direction) self.rect.x = self.x
2.游戏主程序,alien_invasion.py,代码:
import pygamefrom settings import Settingsfrom game_stats import GameStatsfrom button import Buttonfrom ship import Shipfrom pygame.sprite import Groupimport game_functions as gffrom scoreboard import Scoreboarddef run_game(): pygame.init() # 初始化背景设置 ai_settings = Settings() # 全局设置 screen = pygame.display.set_mode( # 创建screen显示窗口 (ai_settings.screen_width,ai_settings.screen_height) ) pygame.display.set_caption('Alien Invasion') # 标题 #新建Play按钮 play_button = Button(ai_settings,screen,"Play") #创建一个用于存储游戏统计信息的实例,并创建记分牌 stats = GameStats(ai_settings) sb = Scoreboard(ai_settings, screen, stats) # 创建飞船 ship = Ship(ai_settings,screen) # 创建子弹编组 bullets = Group() #创建一个外星人 aliens = Group() #创建外星人群 gf.create_fleet(ai_settings,screen,ship,aliens) # 开始游戏主循环 while True: # 监视键盘和鼠标事件 gf.check_events(ai_settings,screen,stats,sb,play_button,ship,aliens,bullets) if stats.game_active: # 移动飞船 gf.update_ship(ship) # 更新子弹位置 gf.update_bullets(ai_settings,screen,stats,sb,ship,aliens,bullets) #更新外星人 gf.update_aliens(ai_settings,stats,screen,sb,ship,aliens,bullets) # 更新屏幕 gf.update_screen(ai_settings,screen,stats,sb,ship,aliens,bullets,play_button)run_game()
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