ゲーム開発で静止画像からアニメーションスプライトを作成するにはどうすればよいですか?

import pygame

# Set up basic game parameters
SIZE = (720, 480)
FPS = 60
clock = pygame.time.Clock()

# Define the animation time or frame interval
ANIMATION_TIME = 0.1
ANIMATION_FRAMES = 6

# Create a custom sprite class for animation
class AnimatedSprite(pygame.sprite.Sprite):
    def __init__(self, position, images):
        self.position = position
        self.images = images
        self.index = 0
        self.current_time = 0
        self.current_frame = 0

    # Time-dependent animation update
    def update_time_dependent(self, dt):
        self.current_time += dt
        if self.current_time >= ANIMATION_TIME:
            self.current_time = 0
            self.index = (self.index + 1) % len(self.images)

    # Frame-dependent animation update
    def update_frame_dependent(self):
        self.current_frame += 1
        if self.current_frame >= ANIMATION_FRAMES:
            self.current_frame = 0
            self.index = (self.index + 1) % len(self.images)

    # Override the update method for sprite groups
    def update(self, dt):
        # Call either the time- or frame-dependent update method here
        # ...

# Load images for animation
images = load_images("path/to/images")

# Create an animated sprite and add it to a sprite group
sprite = AnimatedSprite((100, 100), images)
all_sprites = pygame.sprite.Group(sprite)

# Game loop
running = True
while running:
    dt = clock.tick(FPS) / 1000
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
    all_sprites.update(dt)
    screen.blit(BACKGROUND_IMAGE, (0, 0))
    all_sprites.draw(screen)
    pygame.display.update()