I get a pygame error after a quit my pygame window - python

I am trying to understand how to display fonts in pygame. But i get an error saying pygame.error: Library not initialized
This error happens after i press the cross button or quit my pygame window.
Can anyone tell my why this error is happening and how can i fix it please?
import pygame
from pygame.locals import *
import sys
from win32api import GetSystemMetrics
pygame.init()
WIDTH = GetSystemMetrics(0)
HEIGHT = GetSystemMetrics(1)-64
WIDTH_HEIGHT = (WIDTH, HEIGHT)
WINDOW = pygame.display.set_mode(WIDTH_HEIGHT)
pygame.init()
font = pygame.font.Font('freesansbold.ttf', 32)
text = ""
running = True
while running:
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
running = False
text = font.render('Hi', True, (255,255,255))
WINDOW.blit(text, (0, 0))
pygame.display.update()

This is one way to exit (just finishes the program):
run = True
while run:
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = False
pygame.quit()
This is another way (a bit more forceful):
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
exit()

Related

My Python thread starts but doesn't do anything

I'm working on custom basic functions to simplify coding for me, like wait(seconds) or msg(...), and now I'm working on the window setup and updating, it works, but when I put it in a thread, it just won't do anything. I don't get any errors, so I'm confused and frustrated. I dont need you to debug it or anything, I just need help to know where the problem is and why it's a problem.
Here's my script so far (the script is at the bottom):
# Imports
if True:
import pygame, math, random, time, sys, threading
from pygame.locals import *
pygame.init()
# Setup
if True:
win_n = "New Project"
win_w = 800
win_h = 600
win_c = (0, 0, 0)
# Code
if True:
def wait(seconds):
time.sleep(seconds)
def wait_until(bool):
while not bool:
wait(0.001)
# Execute
if True:
def e_ws():
mainClock = pygame.time.Clock()
pygame.display.set_caption(win_n)
monitor_size = [pygame.display.Info().current_w, pygame.display.Info().current_h]
screen = pygame.display.set_mode((win_w, win_h), pygame.RESIZABLE)
fullscreen = False
while True:
screen.fill(win_c)
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
if event.type == VIDEORESIZE:
if not fullscreen:
screen = pygame.display.set_mode((event.w, event.h), pygame.RESIZABLE)
if event.type == KEYDOWN:
if fullscreen:
screen = pygame.display.set_mode(monitor_size, pygame.FULLSCREEN)
else:
screen = pygame.display.set_mode((screen.get_width(), screen.get_height()),
pygame.RESIZABLE)
pygame.display.update()
mainClock.tick(60)
t_ws = threading.Thread(target=e_ws)
t_ws.start()
print("done")
Run a script with python yourscriptname.py from the command line.

Why is my Pygame window only displaying for only a few seconds?

I'm new to PyGame (and python in general) and I am just trying to get a window to pop up. That's all I'm after for now. Here's my code:
import pygame
pygame.init()
win = pygame.display.set_mode((600, 600))
pygame.display.set_caption('First Game')
I am using Python 3.7.0 in Pycharm and PyGame 1.9.4.
Following Python's PyGame tutorial, your next step is to start a while loop to handle the game frames:
import pygame
pygame.init()
win = pygame.display.set_mode((600, 600))
pygame.display.set_caption('First Game')
clock = pygame.time.Clock() # Determine FPS (frames-per-second)
crashed = False
# Game loop
while not crashed:
for event in pygame.event.get():
if event.type == pygame.QUIT:
crashed = True
print(event)
pygame.display.update()
clock.tick(60)
Because you need to first put it inside a loop (so it refreshes whatever is inside it), that way it stays on until something alters the condition of that loop.
# Event loop (HERE YOU PUT IT).
while 1:
for event in pygame.event.get():
if event.type == QUIT:
return
screen.blit(background, (0, 0))
pygame.display.flip()
if __name__ == '__main__': main()

Pygame window freezes on quit

I'm relatively new to python and very new to pygame. I'm trying to use pygame. All programs seem to work fine, except when I try to quit. The window freezes ("application not responding") and I have to force quit it. I'm using OSX, python 3.6, and running it through sublime text if that matters. Code is below:
import pygame
done = False
size = (400,400)
screen = pygame.display.set_mode(size)
while done==False:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.display.quit()
pygame.quit()
done = True
pygame.display.quit()
pygame.quit()
Thanks for your help!
Try this one, it works for me:
import sys
import pygame
size = (400,400)
screen = pygame.display.set_mode(size)
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
sys.exit()
you can just do this:
import pygame
done = False
size = (400,400)
screen = pygame.display.set_mode(size)
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
quit()
this is what i do
or you can use this:
import pygame
pygame.init()
running = True
width, heigth = 800, 600
size = (width, heigth)
screen = pygame.display.set_mode(size)
while running:
pygame.display.update()
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = False
pygame.quit()
don't use pygame.display.quit()

How to exit out of window in pygame 64 bit?

I have created a window in pygame, the only problem is that I can't exit the window without it crashing. Is there a problem with my code that causes this?
import pygame
pygame.init()
gamedisplay = pygame.display.set_mode ((800,600))
pygame.display.set_caption ('snake')
pygame.display.update()
while True:
pass
gameExit = False
while not gameExit:
for event in pygame.event.get():
if event.type == pygame.QUIT:
gameExit = True
pygame.quit()
quit()
Get rid of this:
while True:
pass

Background image does not appear on screen

I'm trying to run code from a tutorial I found online.
But when I run this code, my background image does not appear, even if it loaded correctly.
Why?
bif = "castle.jpg"
import pygame, sys, pygame.mixer
from pygame.locals import *
pygame.init()
screen = pygame.display.set_mode((1280,960),0, 32)
background = pygame.image.load(bif).convert()
pygame.display.set_caption("castlevania ultimate")
hit_sound = pygame.mixer.Sound("02.wav")
hit = False
if hit is True:
hit_sound.play()
sound = pygame.mixer.Sound("castlevania_1.wav")
sound.play()
while True:
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
screen.blit(background, (0,0))
pygame.display.update()
You never call pygame.display.update() in your while loop.
Python is indentation sensitive, so the loop should look like this:
while True:
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
screen.blit(background, (0,0))
pygame.display.update()
Note that pygame.display.update() is now inside the while loop.

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