[pygame] Re: Problem with mouse going back to the center of the screen

[SurferIX <olivier.pons@xxxxxxxxx>]

I'm sorry I'm not English, so I don't understand what "Don't throw the
b word around lightly, people will think you're a wolf-crier."
means...
More important: please tell me if you can test it under Linux, and
tell me whether it behaves the same or not... this will help for
further investigations, thanks a lot!

Olivier Pons

On 21 juil, 18:17, Luke Paireepinart <rabidpoob...@xxxxxxxxx> wrote:
> Are you sure that it's not working as designed? Did you check how sdl does it? Don't throw the b word around lightly, people will think you're a wolf-crier.
>
> Sent from my iPhone
>
> On Jul 21, 2010, at 11:03 AM, SurferIX <olivier.p...@xxxxxxxxx> wrote:
>
> > You can clearly see it if you add this code in the event handler:
>
> > 293                 elif event.key == K_a:
> > 294                     pygame.mouse.set_visible(False)
> > 295                 elif event.key == K_z:
> > 296                     pygame.mouse.set_visible(True)
>
> > At the very beginning i do pygame.event.set_grab(False)
> > then if you try to press key z to show the mouse, then mouse it, press
> > a to hide it: you'll see the "virtual input" mode is activated.
> > I'm pretty sure this is a bogue.
> > Please tell me if you can reproduce it under Linux, thanks a lot!
>
> > Olivier Pons
>
> > On 21 juil, 17:39, SurferIX <olivier.p...@xxxxxxxxx> wrote:
> >> Ok you were right.
> >> Here is the summary: with Linux:
>
> >> pygame.event.set_grab()
> >> pygame.mouse.set_visible() :
>
> >> grab => False, visible => False => "virtual input" mode
> >> grab => True, visible => False => "virtual input" mode
>
> >> grab => False, visible => True => normal mode
> >> grab => True, visible => True => normal mode
>
> >> So as long as the mouse is not visible, it's considered "virtual
> >> input" mode
> >> I'm pretty sure this is a bug.
> >> I hope someone will try this my code under Linux and tell me if it's
> >> the same problem or not.
>
> >> You cant get the whole sourcecode here:http://olivierpons.com/einstein.tar.bz2
>
> >> By the way, Enigma (the only fullscreen SDL game I've tested under
> >> Linux) has exactly the same problem.
>
> >> On 21 juil, 05:36, Brian Fisher <br...@xxxxxxxxxxxxxxxxxxx> wrote:
>
> >>> The only time I know of where that maybe is supposed to happen, is when the
> >>> mouse is both grabbed by the window, and invisible. SDL takes that to mean
> >>> you want "virtual input" mode, where the mouse is moved back to the center
> >>> so you can keep getting relative mouse movement infinitely in all
> >>> directions, so it can behave like a trackball. This is documented here:http://www.pygame.org/docs/ref/mouse.html
>
> >>> If this is your case. and relative mouse movement is fine, try using the
> >>> mouse event's .rel member instead of it's .pos member, or using
> >>> pygame.mouse.get_rel instead of .get_pos
>
> >>> if this is your case, but virtual input is not desireable, reconsider
> >>> whether pygame.event.set_grab(true) and pygame.mouse.set_visible(false) are
> >>> actually functions you want to call.
>
> >>> if this is not your case, it's a bug, and a minimal sample to reproduce
> >>> would be appreciated.
>
> >>> On Tue, Jul 20, 2010 at 2:32 PM, SurferIX <olivier.p...@xxxxxxxxx> wrote:
> >>>> Hi!
>
> >>>> I've got a problem with the mouse: it's going back to the center of
> >>>> the screen!
> >>>> I don't know where it could come from because it does this only in
> >>>> full screen.
> >>>> It's exactly the same problem with the game Enigma.
>
> >>>> It seems there's a problem either with SDL or with my computer. But if
> >>>> it's with my computer why only in full screen?
> >>>> Did you have any trouble like that?
> >>>> Thanks a lot!