一旦玩家与它发生碰撞，如何从屏幕上删除矩形对象？

Question

in draw() 函数我试图在玩家 pos = 敌人 pos 但“del”不起作用时删除 rect 对象。有什么方法可以完全删除敌人的对象？是否有内置的 pygame 函数可以删除我不知道的对象？

# draw player
def draw():
    enemy = pygame.draw.rect(screen, enemy_color, (enemy_x, enemy_y, 25, 25))
    player = pygame.draw.rect(screen, player_color, (player_x, player_y, 25, 25))
    
    # if the player is over the enemy then delete the enemy
    if player_x == enemy_x and player_y == enemy_y:
        # this does not work
        del enemy

Answer 1

您不能“删除”在 Surface 上绘制的内容。Surface 仅包含按行和列组织的一堆像素。如果要“删除”矩形，则不能绘制它。
创建到pygame.Rect 并在之前进行碰撞测试。例如：

def draw():

    enemy_rect = pygame.Rect(enemy_x, enemy_y, 25, 25)
    player_rect = pygame.Rect(player_x, player_y, 25, 25)

    if player_rect.colliderect(enemy_rect):
        # create new enemy
        # [...]
    else:
        enemy = pygame.draw.rect(screen, enemy_color, enemy_rect)
    
    player = pygame.draw.rect(screen, player_color, player_rect)

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无论如何，我建议使用在pygame.sprite.Group 中组织的pygame.sprite.Sprite 对象。 pygame.sprite.Sprite.kill 从所有组中删除 Sprite。