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Re: [pygame] Is there an InputBox function in pygame/python?


I think the "right" way to do this is to use the event.unicode attribute. This should be a character representing the key pressed. This will respect shift, and possibly any other modifier keys.

You should use this instead of chr() because it will also respect the OS's keyboard and language settings: ie, it will return the correct key in non-qwerty and non-english environments.

However, you will still need to use event.key for backspace and other non-character/control keys.

-Knio

D. Hartley wrote: 
Thanks! I've put that in (and changed it a little, re: the underscores
and so on, will change the color too).  But one last thing:  This
ignores the shift key in the keypresses:

    inkey = get_key()
    if inkey == K_BACKSPACE:
      current_string = current_string[0:-1]
    elif inkey == K_RETURN:
      break
    elif inkey == K_MINUS:
      current_string.append("_")
    elif inkey <= 127:
      current_string.append(chr(inkey))

I'm not too sure how the shift key works in keypresses (it doesnt
matter for any of my other keystrokes in the game).  Is there an "elif
inkey ==" line I can add that will let me use shift keys when entering
in the player name? As is, shift+s just returns s (rather than S).  My
tutorial materials don't have anything useful about the shift key...?

~Denise

On 4/27/05, James Reeves <jreeves@xxxxxxxxxxxxxxxxxxx> wrote:

On Wednesday 27 Apr 2005 10:13 pm, D. Hartley wrote:

I am trying to create a box on the graphics window which asks a user
for their name.  My research led me to the "InputBox" function, which
is said to "get user input, allowing backspace etc shown in a box in
the middle of the screen" (but ignores the shift key?).  I found
several pages that refer to it, and one example on google, but it
seems very cryptic to me, and I can't find any other help materials.
I tried help(InputBox), tried to use the function itself, tried to
search for it in the documentation on python.org, and tried to google
it (InputBox, Python).  I got a half-million websites talking about
VBS and other versions of InputBox, and can't find one (besides the
cryptic one) for python.  Does this function exist? Or is it called
something else?  Can someone point me to an
explanation/definition/simple example?  Like I said, I am just trying
to ask for a user name, it is nothing more (or less!) complicated than
that.


InputBox isn't a function native to Pygame. Pygame doesn't have any GUI
widgets included; you have to write them yourself, or find one that's written
already. I do recall there have been some unofficial GUI toolkits written for
pygame, but I haven't used them (and in my opinion, they all seem a little
ugly).

However, I found this:

http://www.pygame.org/pcr/inputbox/index.php

And this gives you a simple input box. To put this into your game, copy and
paste the code below:

#######################
def get_key():
while 1:
  event = pygame.event.poll()
  if event.type == KEYDOWN:
    return event.key
  else:
    pass

def display_box(screen, message):
"Print a message in a box in the middle of the screen"
fontobject = pygame.font.Font(None,18)
pygame.draw.rect(screen, (0,0,0),
                 ((screen.get_width() / 2) - 100,
                  (screen.get_height() / 2) - 10,
                  200,20), 0)
pygame.draw.rect(screen, (255,255,255),
                 ((screen.get_width() / 2) - 102,
                  (screen.get_height() / 2) - 12,
                  204,24), 1)
if len(message) != 0:
  screen.blit(fontobject.render(message, 1, (255,255,255)),
         ((screen.get_width() / 2) - 100, (screen.get_height() / 2) - 10))
pygame.display.flip()

def ask(screen, question):
"ask(screen, question) -> answer"
pygame.font.init()
current_string = []
display_box(screen, question + ": " + string.join(current_string,""))
while 1:
  inkey = get_key()
  if inkey == K_BACKSPACE:
    current_string = current_string[0:-1]
  elif inkey == K_RETURN:
    break
  elif inkey == K_MINUS:
    current_string.append("_")
  elif inkey <= 127:
    current_string.append(chr(inkey))
  display_box(screen, question + ": " + string.join(current_string,""))
return string.join(current_string,"")
######################

Then to ask a person's name, use:
name = ask(screen, "Your name")

--
James Reeves
http://www.monkeyengines.co.uk/