Pygame スプライト グループは、ゲーム開発におけるスプライト管理をどのように簡素化しますか?

<code class="python">crosshair = pygame.sprite.Group()</code>

<code class="python">crosshair.add(sprite)</code>

<code class="python">crosshair.remove(sprite)</code>

<code class="python">import pygame

class Player(pygame.sprite.Sprite):
    def __init__(self):
        super().__init__()
        self.image = pygame.image.load('player.png')
        self.rect = self.image.get_rect()

class Enemy(pygame.sprite.Sprite):
    def __init__(self):
        super().__init__()
        self.image = pygame.image.load('enemy.png')
        self.rect = self.image.get_rect()

# Create a group of sprites
allSprites = pygame.sprite.Group()

# Add the player and some enemies to the group
player = Player()
allSprites.add(player)
for i in range(10):
    enemy = Enemy()
    allSprites.add(enemy)

# Main game loop
while running:
    # Update all the sprites in the group
    allSprites.update()

    # Draw all the sprites in the group
    allSprites.draw(screen)</code>