Python - Pygame Screen Flickering (screen.fill)

Asked Feb 09 '16 at 21:52

Active Feb 09 '16 at 21:52

Viewed 1,742 times

import time
import sys
import random
import pygame

#Variables
white = (255,255,255)
simStart = True
black = (0,0,0)
red = (255,0,0)
green = (0,255,0)
blue = (0,0,255)
x = 590.575
y = 450
clock = pygame.time.Clock()

pygame.init()

screen = pygame.display.set_mode((1200,600))

pygame.display.set_caption("Squirrel Problem")

screen.fill(white)

pygame.display.update()

while simStart == True:
    while x > 1:
        for event in pygame.event.get():
            if (event.type==pygame.QUIT):
                pygame.quit()

        screen.fill(white)

        pygame.draw.rect(screen, red, (300, 50, 600, 291.53))
        pygame.draw.rect(screen, blue, (x, y, 18.85, 55.81))

        x = x - .5
        clock.tick(30)
        pygame.display.update()

When I run the code, the screen will flicker. I've heard that this is because of screen.fill() but I don't know another way to clear the last position of [pygame.draw.rect(screen, blue, (x, y, 18.85, 55.81))]. Does anyone know how to do this without the screen glitching/flickering?

asked Feb 09 '16 at 21:52

Rob B.

I runned your code, the screen is not flickering, do you mean low-fps ? – Rockybilly Feb 09 '16 at 22:03
Yeah nothing in your code to cause flickering, however you should move clock.tick(30) to the last line under pygame.display.update() as clock.tick() is the last thing you should do every frame – Fredrik Feb 09 '16 at 22:22
It's not flickering on Linux Mint. – furas Feb 09 '16 at 22:37
Ok, Thanks! Just wondering what's the best interpreter for python that u know of? – Rob B. Feb 09 '16 at 22:38
2

I would say python.exe – Fredrik Feb 09 '16 at 22:42
great, thx for the help it is working now! – Rob B. Feb 09 '16 at 22:46

Python - Pygame Screen Flickering (screen.fill)

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