问题描述
我想启动我的程序,测量程序启动的时间,然后等待几秒钟,按一下按钮(K_RIGHT),然后按一下该按钮的时间。我正在使用Pygame来注册Keydown。但是在下面的代码中,它无法注册我的Keydown。我在这里做错了什么?
I want to start my program, measure the time when the program starts and then wait some seconds, push a button (K_RIGHT) and messure the time when I push the button. I am using Pygame to registrate the Keydown. But in my code below it does not registrate my Keydown. What I am doing wrong here?
start = time.time()
for e in pygame.event.get():
if e.type == pygame.KEYDOWN:
if e.key == pygame.K_RIGHT:
end= time.time()
diff = end-start
推荐答案
下面是一个最小的完整示例,可以正确打印时间差异。通过的时间只是 time.time()
(现在)与开始时间之间的差。
Here's a minimal, complete example that prints the correct time difference. The passed time is just the difference between time.time()
(now) and the start time.
您可以使用而不是 time.time
(它返回以毫秒为单位的时间,而不是秒)。
You could use pygame.time.get_ticks
instead of time.time
as well (it returns the time in milliseconds instead of seconds).
import time
import pygame as pg
pg.init()
screen = pg.display.set_mode((640, 480))
clock = pg.time.Clock()
BG_COLOR = pg.Color('gray12')
start = time.time()
done = False
while not done:
for event in pg.event.get():
if event.type == pg.QUIT:
done = True
elif event.type == pg.KEYDOWN:
if event.key == pg.K_RIGHT:
diff = time.time() - start
print(diff)
screen.fill(BG_COLOR)
pg.display.flip()
clock.tick(60)
pg.quit()
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