Re: [pygame] Problem with event-handling

[Farai Aschwanden <fash@xxxxxxxxxx>]

Hello Kai

If you only want to check keyboard inputs you dont need to use pump  
and pull. Those are, as far as I understand the description, getting  
ANY running event from the event queue. So for checkin any key input  
you directly can use:  "if event.type == KEYDOWN". If then any key  
was pressed you can check for the ones you are interested in. The  
following link of Pygame doc shows a list of all available keys you  
can  check for.

Here is a code that works in the way I described.

-------------------------------------------------------------------

import sys, pygame
from pygame.locals import *

pygame.init()


while True:
   for event in pygame.event.get():

      if (event.type == KEYDOWN):  # Key was pressed

         # Now checking which key was pressed (the ones the event  
should care of)
         if event.key == K_UP:
            # Cursor up was pressed (include further actions/calls  
here)
            print "Cursor key up pressed"

         if event.key == K_DOWN:
            # Cursor up was pressed (include further actions/calls  
here)
            print "Cursor key down pressed" 	

	 if event.key == K_ESCAPE:
	    # Exit program
	    sys.exit()

-------------------------------------------------------------------

Hope this helps

Grüsschen

Farai



Am 25.10.2006 um 22:34 schrieb Kai Kuehne:

> Hi list!
> I wanted to create a function which get a key and returns
> true/false whether the key is currently pressed:
>
> def is_pressed(key):
>    pygame.event.pump()
>    event = pygame.event.poll()
>    if event.type == KEYDOWN:
>        if event.key == key:
>            return True
>        return False
>
> When I use this function: is_pressed(K_SPACE), it doesn't work.
> The variable "key" always contains 27 (ESC). Can anybody
> point me to my mistake(s)?
>
> Thanks
> Kai