Making and using pygame sprites for donkey kong style game

Question

For my project i am recreating donkey kong in pygame, and ive got to the stage where i need sprites for my ladders, platforms and my character, but im unsure how to make sprites and then use these in pygame.

Answer 1

Here is a very basic example for using a Sprite in pygame (see also Sprite):

repl.it/@Rabbid76/PyGame-Sprite

import pygame

pygame.init()
window = pygame.display.set_mode((400, 400))
clock = pygame.time.Clock()

class Player(pygame.sprite.Sprite):
    
    def __init__(self, center_pos, image):
        super().__init__() 
        self.image = image
        self.rect = self.image.get_rect(center = center_pos)
    
    def update(self, surf):
        keys = pygame.key.get_pressed()
        self.rect.x += (keys[pygame.K_d]-keys[pygame.K_a]) * 5
        self.rect.y += (keys[pygame.K_s]-keys[pygame.K_w]) * 5
        self.rect.clamp_ip(surf.get_rect())

player_surf = pygame.image.load('Bird64.png').convert_alpha()
player = Player(window.get_rect().center, player_surf)
all_sprites = pygame.sprite.Group([player])

run = True
while run:
    clock.tick(60)
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            run = False

    all_sprites.update(window)

    window.fill(0)
    all_sprites.draw(window)
    pygame.display.flip()

pygame.quit()
exit()

An image can be loaded to a pygame.Surface object with pygame.image.load. See How to draw images and sprites in pygame?.

Pygame uses pygame.sprite.Sprite objects and pygame.sprite.Group objects to manage Sprites. pygame.sprite.Group.draw() and pygame.sprite.Group.update() are methods which are provided by pygame.sprite.Group.

The former delegates the to the update method of the contained pygame.sprite.Sprites - you have to implement the method. See pygame.sprite.Group.update():

Calls the update() method on all Sprites in the Group [...]

The later uses the image and rect attributes of the contained pygame.sprite.Sprites to draw the objects - you have to ensure that the pygame.sprite.Sprites have the required attributes. See pygame.sprite.Group.draw():

Draws the contained Sprites to the Surface argument. This uses the Sprite.image attribute for the source surface, and Sprite.rect. [...]