python - In PyGame, how to move an image every 3 seconds without using the sleep function? -

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recently i've learned basic python, writing game using pygame enhance programming skills.

in game, want move image of monster every 3 seconds, @ same time can aim mouse , click mouse shoot it.

at beginning tried use time.sleep(3), turned out pause whole program, , can't click shoot monster during 3 seconds.

so have solution this?

thanks in advance! :)

finally solved problem of guys. thank much! here part of 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 clock class can used instead of python time module.

here example usage:

clock = pygame.time.clock()  time_counter = 0  while true:     time_counter = clock.tick()     if time_counter > 3000:         enemy.move()         time_counter = 0

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