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I want to change the value of a bool after some time when a user hits enter, whilst keeping the program running.

Pygame's delay or timers don't work as they stop the whole code or repeats a user event over and over again.

skrx
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Huzaif Ahmed
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    You need to share what you have tried to code in your question details. – aaronR Mar 03 '18 at 14:44
  • i couldn't think of anything there really wasn't any specific code i could use – Huzaif Ahmed Mar 03 '18 at 15:34
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    Share the code for what you tried to do and explain why it did not work. People want to see that you have made an attempt. – aaronR Mar 03 '18 at 15:36
  • Have you tried one of these [timers](https://stackoverflow.com/questions/30720665/countdown-timer-in-pygame)? – skrx Mar 03 '18 at 23:06
  • i'm sorry but i haven't made any attempts because straight up the timers and delay in pygame stops the whole code which is not what i want – Huzaif Ahmed Mar 04 '18 at 13:29

1 Answers1

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Although pygame has no function to wait while allowing the program to run, there are several ways of doing it without pygame. You can import time, a module that comes with python used for getting the current time. It has a function, time.time() which returns the amount of seconds since a set time. Therefore, you can do x = time.time() when the user hits enter, and you continuously check to see if time.time() - x <= delay in the game loop, and change the value of your boolean if it is true. For example:

import pygame, time, sys
screen = pygame.display.set_mode((100,100))
timer = False # timer is true after the user hits enter and before your boolean changes
delay = 1 # whatever your delay is (seconds)
bool = False
while True: # game loop
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()
        if event.type == pygame.KEYDOWN and event.key == pygame.K_RETURN:
            x = time.time() # x is the time when you press enter
            timer = True # the timer is activated
    print(bool)
    if timer:
        if time.time() - x >= delay: # if the amount of time since enter was pressed is the delay
            bool = True #change bool value

This code will wait till you press enter, and then, one second later, change the boolean. If you add anything in the game loop, it will still run while the timer is active. This works because time.time() gets the current time, and if the difference between the current time and the time when the user pressed enter (represented as x) is equal to the delay, then that much time passed since the user hit enter and it it changes the boolean.

SnootierBaBoon
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  • hmm i see but it seems to change it immediately after i press enter, does he delay need to be in miliseconds? – Huzaif Ahmed Mar 08 '18 at 10:42
  • That was because the code wasn't made properly. I fixed it so now you can run it and see that it works. Earlier, I wrote `if time.time() - x <= delay` instead of `if time.time() - x >= delay`. I also changed it so you can run it. – SnootierBaBoon Mar 10 '18 at 17:43