Pygame First Game 03 – still about animation

Let’s take a look into the last code to explain a little bit what I did in the class Player, before we go on.
If you want to see the entire code go to the previos post (at the end of this post).

https://pythonprogramming.altervista.org/wp-content/uploads/2020/05/output3_xp.mp4?_=1

class Player(pg.sprite.Sprite):
    def __init__(self, px, py, action):
        super().__init__()
        lst = glob("cat\\{}*".format(action))
        img = [f for f in lst if len(f) == len(lst[0])]
        img.extend([f for f in lst if len(f) != len(lst[0])])
        self.sprites = [pg.image.load(x) for x in img]
        self.current = 0
        self.image = self.sprites[self.current]
        self.rect = self.image.get_rect()
        self.rect.topleft = [px, py]
        self.wait = 0

    def update(self, pause=4):
        self.wait += 1
        if self.wait == pause:
            self.wait = 0
            self.current += 1
            if self.current >= len(self.sprites):
                self.current = 0
            self.image = self.sprites[self.current]

Video