Python Forum

I am new to pygame, so I am looking at the docs here and trying each bit out in Idle.

My little function rect11() works OK, but it doesn't refresh when I press the right arrow key.

I presume K_r means the right arrow key, but nothing happens when I press the right arrow key.

Do you know why??

def rect11():
    pygame.init()
    width = 600
    height = 600
    SIZE = (500, 200)

    RED = (255, 0, 0)
    GREEN = (0, 255, 0)
    BLUE = (0, 0, 255)

    YELLOW = (255, 255, 0)
    MAGENTA = (255, 0, 255)
    CYAN = (0, 255, 255)

    BLACK = (0, 0, 0)
    GRAY = (150, 150, 150)
    WHITE = (255, 255, 255)

    def random_point():
        x = randint(0, width)
        y = randint(0, height)
        return (x, y)

    def random_rects(n):
        rects = []
        for i in range(n):
            r = Rect(random_point(), (20, 20))
            rects.append(r)
        return rects

    screen = pygame.display.set_mode((width, height))
    
    running = True
    
    rect = Rect(100, 50, 200, 80)
    
    n = 50
    rects = random_rects(n)

    while running:
        for event in pygame.event.get():
            if event.type == QUIT:
                running = False
            
            if event.type == KEYDOWN:
                if event.key == K_r:
                    rects = random_rects(n)
       
        screen.fill(GRAY)
        pygame.draw.rect(screen, GREEN, rect, 1)

        for r in rects:
            if rect.colliderect(r):
                pygame.draw.rect(screen, RED, r, 2)
            else:
                pygame.draw.rect(screen, BLUE, r, 1)
        
        pygame.display.flip()


    pygame.quit()

(Jul-04-2021, 10:49 AM)Pedroski55 Wrote: [ -> ]I presume K_r means the right arrow key, but nothing happens when I press the right arrow key.

Check out the pygame documentation. It is a go to must when your programming in pygame. Everything starts with K_ as it is keyboard. K_r is "r". K_RIGHT is right arrow.

As a side note: I think it is better and more adaptable to organize things in classes as opposed to nested functions.

Thanks, in the cold light of morning that was very clear.

All the other examples used mainly the arrow keys, I suppose I just assumed this would too!!

Bad assumption!

Pedroski55

metulburr

Pedroski55