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nickme

unrecognized event.key

2 posts in this topic

hi

 

i had written a program where i want to add xbox 360 controller support.

 

my program crashed when it said 'object Event has no attribute "key"'.  

 

 

            
        for event in pygame.event.get(): # event handling loop
            if event.type == QUIT:
                terminate()
            elif event.type == KEYDOWN or event.type == JOYAXISMOTION:                                     # by removing event.type == JOYAXISMOTION 
                                                                                                                                                        # the program run fine (ran without run time error).
                if (axis_x < 0.0 or event.key == K_LEFT or event.key == K_a) and direction != RIGHT:  # **** program crashed here. ****
                    direction = LEFT
                    print ' going L'
                elif (axis_x > 0. or event.key == K_RIGHT or event.key == K_d) and direction != LEFT:
                    print ' going R'
                    direction = RIGHT
 
it seen that pygame did not recognize event.key when i had the second event checked (the or statement).  is there a way to check both the KEYDOWN and JOYAXISMOTION in a single if statement?  because otherwise, i would have to handle it in a separate block of codes. and it could be logically unsound. imagine if some user uses both keyboard and joystick at the same time!
 
thanks
Edited by nickme
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I would put the JOYAXISMOTION in another elif block after the KEYDOWN block so the keyboard supercedes the joystick. Then each block sets a var and then I would check the state of the var at the end of the event block.

Edited by tp9
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Forget what I said earlier. I don't think you can even process 2 events at the same time unless you pull them out of the queue explicitly. For example.

for event in pygame.event.get([KEYDOWN, JOYAXISMOTION]):
    #do something

 

Therefore you won't have a collision. Here is the test I ran to verify the behavior. Move your mouse around the display box and hit Escape at the same time.

import pygame, sys
from pygame.locals import *

def main():
    pygame.init()
    DISPLAYSURF = pygame.display.set_mode((400,300))
    pygame.display.set_caption('Hello world')
    i = 0
    while True:
        for event in pygame.event.get():
            i += 1
            # print "In event loop", event.type
            if event.type == QUIT:
                pygame.quit()
                sys.exit()
            if event.type == MOUSEMOTION:
                print 'mouse moved', i
                mouseX, mouseY = event.pos
            if event.type == KEYDOWN:
                print "Key pressed", i
                if event.key == K_ESCAPE:
                    pygame.quit()
                    sys.exit()
                
        pygame.display.update()

if __name__=='__main__':
    main()
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