Codebeispiel "Mausverfolger"

import pgzrun, pygame

WIDTH, HEIGHT = 500, 500

def update():
    pass

def draw():
    
    screen.fill((0, 0, 255))
    
    mausposition = pygame.mouse.get_pos()
    screen.draw.filled_circle(mausposition, 25, (255, 0, 0))
    

pgzrun.go( )