Python – In PyGame, how do I move an image every 3 seconds without using the sleep function?

Recently I learned some basic Python, so I’m using PyGame to write a game to improve my programming skills.

In my game, I want to move an image of a monster every 3 seconds, and at the same time I can aim at it with the mouse and shoot it with the mouse click.

At first I tried to use time.sleep(3) and found that it paused the entire program and could not click to shoot monsters for 3 seconds.

So do you have any solutions?

Thanks in advance! 🙂

Finally solved this problem with the help of everyone. Thank you so much!
Here is part of my code :

import random, pygame, time

x = 0
t = time.time()
while True:

screen = pygame.display.set_mode((1200,640))
    screen.blit(bg,(0,0))

if time.time() > t + 3:
        x = random.randrange(0,1050)
        t = time.time()

screen.blit(angel,(x,150))

pygame.display.flip() 

Pygame has a clock class that can be used in place of a python time module.

Here is a usage example:

clock = pygame.time.Clock()

time_counter = 0

while True:
    time_counter = clock.tick()
    if time_counter > 3000:
        enemy.move()
        time_counter = 0