CODEWITHSUNDEEP
pythonpygame
satoru
satoru

Reputation: 33235

The display background color is not changed after a call to `fill` in Pygame

I'm following an example in a pygame tutorial:

import pygame
pygame.init()

surf = pygame.display.set_mode((400, 450))
#surf.fill((255, 0, 0))
surf.fill(pygame.Color(255, 0, 0))
pygame.display.update()
input()

As you can see, I've tried two ways:

  1. surf.fill((255, 0, 0))
  2. surf.fill(pygame.Color(255, 0, 0))

Neither works for me.

My working environment is macOS, the version of pygame is 1.9.6, the version of Python is 3.8.

What I saw:

The background is not red

Why is the background color not changed?

Upvotes: 2

Views: 1379

Answers (3)

raulv
raulv

Reputation: 11

I faced the same problem recently. I am using MacOS 10.15.7 and tried versions from 2.0.0 through 2.0.3dev4 of Pygame installed via Pip. Nothing worked. Until I read the following text in the Pygame documentation (https://www.pygame.org/docs/ref/color.html):

Color objects support equality comparison with other color objects and 3 or 4 element tuples of integers. There was a bug in pygame 1.8.1 where the default alpha was 0, not 255 like previously.

So, defining the RGB color with a 4 elements tuple (last number the alpha value, 255 opaque) solved the problem.

Upvotes: 0

satoru
satoru

Reputation: 33235

After searching for "pygame fill doesn't work" for a while and trying each one of the suggested answers, I found out that the only way to make the background color change happen is to upgrade pygame to 2.0.0.dev4.

Since by default pip only installs the most recent stable version of a package, I need to specify the version explicitly like pip install pygame==2.0.0.dev4.

And now I can see the red background.

Upvotes: 3

Mohammad Sartaj
Mohammad Sartaj

Reputation: 111

import pygame
pygame.init()
surf = pygame.display.set_mode((400, 450))
run = True
clock = pygame.time.Clock()
while run:
    clock.tick(60)
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            run = False
    #surf.fill((255, 0, 0))
    surf.fill(pygame.Color(255, 0, 0))
    pygame.display.update()

Upvotes: 3

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