Pygame.sprite.Group() 實現了什麼?
簡介
Pygame,著名的Python 多媒體庫,提供Pygame.sprite.Group 類別來管理和操作集合代表遊戲物件或其他視覺元素的精靈。
說明
Pygame.sprite.Group() 有幾個關鍵用途:
範例
考慮以下程式碼片段:<code class="python">import pygame class Player(pygame.sprite.Sprite): # Initialize a sprite with an image and position def __init__(self, center_pos): super().__init__() self.image = pygame.Surface((40, 40)) self.image.fill((255, 255, 0)) self.rect = self.image.get_rect(center=center_pos) class Bullet(pygame.sprite.Sprite): # Initialize a sprite with an image and position def __init__(self, center_pos): super().__init__() self.image = pygame.Surface((20, 10)) self.image.fill((0, 255, 255)) self.rect = self.image.get_rect(center=center_pos) # Update sprite logic def update(self): self.rect.x += 10 if self.rect.right > 300: self.kill() # Initialize Pygame pygame.init() # Create game window window = pygame.display.set_mode((400, 300)) # Create the game clock clock = pygame.time.Clock() # Create a player sprite player = Player((25, window.get_height() // 2)) # Create a group to hold all sprites all_sprites = pygame.sprite.Group(player) # Main game loop run = True while run: # Limit the game to 60 frames per second clock.tick(60) for event in pygame.event.get(): if event.type == pygame.QUIT: run = False if event.type == pygame.KEYDOWN: if event.key == pygame.K_SPACE: # Add a bullet sprite to the all_sprites group all_sprites.add(Bullet(player.rect.center)) # Update all sprites in the group all_sprites.update() # Clear the screen window.fill(0) # Draw a wall on the screen pygame.draw.rect(window, (255, 0, 0), (300, 0, 10, window.get_height())) # Draw all sprites on the screen all_sprites.draw(window) # Update the display pygame.display.flip() # Quit Pygame when the game is over pygame.quit() exit()</code>在此範例中,all_sprites 群組管理玩家精靈以及玩家按下空白鍵時所建立的任何子彈精靈。該組的 update() 方法更新所有精靈,將子彈精靈移到右側。該組的draw()方法將玩家和子彈精靈繪製到螢幕上。
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