Python Pygame: screen.fill and screen.blit not working, please help!

[User8574]

# Modules

import pygame, sys

# Init / Clock

pygame.init()
clock = pygame.time.Clock()

# Display Setup

screen_width = 1920
screen_height = 1080
screen = pygame.display.set_mode((screen_width,screen_height))
pygame.display.set_caption("Coin Collector")

# Objects

coin = pygame.image.load("coin.png").convert()

# Colors

bg_color = pygame.Color(255, 255, 255)

# Event Loop

while True:

    for event in pygame.event.get():

        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()

# Object Draw / Blit

    screen.fill(bg_color)

    screen.blit(coin, (screen_width/2, screen_height/2))

# Screen Update

pygame.display.flip()
clock.tick(60)

Both filling the background and making the coin appear on the screen doesn't work; why?

 

[Deleted member 2829]

Your one-liner problem description is not very clear... what exactly doesn't work ? The combination of both actions ? Does it work when you onbly do onw of them ? What are the symptoms ?
When I run your code (after having downloaded an image for coin.png) I just get an entirely black screen. Is that what you get ?

 

[User8574]

Your one-liner problem description is not very clear... what exactly doesn't work ? The combination of both actions ? Does it work when you onbly do onw of them ? What are the symptoms ?
When I run your code (after having downloaded an image for coin.png) I just get an entirely black screen. Is that what you get ?

Yes

 

[User8574]

Yes

Howver, I was trying to fill the background white and make the coin appear on the screen

 

[Deleted member 2829]

Yes I noticed that, and wonder why the screen went black. Seems we're missing something. I may have another look tomorrow. Maybe someone else will chip in before that.

 

[Deleted member 2829]

The problem is that you have a double event loop, and that the page update command is outside of the loop. Try this, it works much better :

running = True
while running:
    screen.fill(bg_color)
    event = pygame.event.poll()
    if event.type == pygame.QUIT:
        running = False
    screen.blit(coin, (screen_width/2, screen_height/2))
    pygame.display.flip()
    clock.tick(60)

 

[User8574]

Oh. Thanks a lot!

 

[User8574]

By the way, how do I make it so that the point of the coin that is at, say (200,200) is the centre point of it? And how do I change the size of it?

 

[Deleted member 2829]

Oh. Thanks a lot!

You're welcome. If this works now, please mark the thread Solved.