pygame, sprites, and rects

[deanhystad]

This program records events when they occur, and then processes them one at a time, like happens when you use poll.

import pygame
import time


pygame.init()
clock = pygame.time.Clock()
screen = pygame.display.set_mode((200, 200))
events = []

max_delay = 0
event = []
while True:
    current_time = time.time()
    for event in pygame.event.get():
        events.append((event, current_time))

    if events:
        event, event_time = events.pop(0)
        delay = current_time - event_time
        if delay > max_delay:
            max_delay = delay
            print(delay)
        if event.type == pygame.QUIT:
            break
    clock.tick(60)

pygame.quit()

There are a lot of events that all happen as soon as the program starts running. You can see that each is delayed 1/60th of a second longer than the previous event.

Output:
0.0009989738464355469
0.0180361270904541
0.034859418869018555
0.051959991455078125
0.06901097297668457
0.08533716201782227
0.10115480422973633

Wiggle the mouse around inside the window while mashing the mouse buttons and the delays can get bigger.

Output:
0.3165292739868164
0.3176705837249756
0.33345532417297363

1/3 of a second is forever in some games. In others it doesn't matter at all.