PYTHON游戲編程外星人入侵的完整實現思路,具體內容如下
準備工作:下載python,比如Anaconda3(64 bit),導入pygame游戲包
1.外星人設置,alien.py,代碼:
import pygamefrom pygame.sprite import Spriteclass Alien(Sprite): """表示單個外星人的類""" def __init__(self,ai_settings,screen): """初始化外星人并設置其他位置""" super(Alien,self).__init__() self.screen = screen self.ai_settings = ai_settings #加載外星人圖像,并設置其rect屬性 self.image = pygame.image.load('images/alien.bmp') self.rect = self.image.get_rect() #每個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 #存儲外星人的準確位置 self.x = float(self.rect.x) def blitme(self): """在指定位置繪制外星人""" self.screen.blit(self.image,self.rect) def check_edges(self): """如果外星人位于屏幕邊緣,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): """向右移動外星人""" self.x += (self.ai_settings.alien_speed_factor * self.ai_settings.fleet_direction) self.rect.x = self.x
2.游戲主程序,alien_invasion.py,代碼:
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() # 初始化背景設置 ai_settings = Settings() # 全局設置 screen = pygame.display.set_mode( # 創建screen顯示窗口 (ai_settings.screen_width,ai_settings.screen_height) ) pygame.display.set_caption('Alien Invasion') # 標題 #新建Play按鈕 play_button = Button(ai_settings,screen,"Play") #創建一個用于存儲游戲統計信息的實例,并創建記分牌 stats = GameStats(ai_settings) sb = Scoreboard(ai_settings, screen, stats) # 創建飛船 ship = Ship(ai_settings,screen) # 創建子彈編組 bullets = Group() #創建一個外星人 aliens = Group() #創建外星人群 gf.create_fleet(ai_settings,screen,ship,aliens) # 開始游戲主循環 while True: # 監視鍵盤和鼠標事件 gf.check_events(ai_settings,screen,stats,sb,play_button,ship,aliens,bullets) if stats.game_active: # 移動飛船 gf.update_ship(ship) # 更新子彈位置 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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