Update to bsnes v041r04? release.

Okay, new WIP. That's the best I can possibly do.

For all six axes, I now ignore input until the state changes for the
first time. If it goes from 0 to > 24576 in a single poll, it
considers the axis to be a button. Otherwise it treats it as a stick.

Positive on a stick means down or right, so it's less likely users
will hit this first (up, left are more common for assignment as
they're first in the control lists.)

To minimize the damage of a bad map, I now map each axis to their own
value without regard for axis vs analog button indexing. Eg you will
have { axis00, axis01, analogbutton02, analogbutton03, axis04, axis05
} instead of { axis00, axis01, analogbutton00, analogbutton01, axis02,
axis03 }. That way if you do screw up the mapping and restart, the
indexes won't change on you. I don't do that on Linux to allow as many
axes + analog buttons as possible, and because it's not needed.

I had to choose what to bias, so I went with axes as they seem more
important overall. Eg -32768 to +24575 = stick; +24576 to +32767 =
button. That means it's easier to map a button as an axis than vice
versa.

It's unfortunately still quite easy to map these incorrectly, eg if
you slam down on a button or smack a stick as hard as you can down or
to the right.

But it was basically ... have a chance of mapping inputs wrong, or
don't let them be mappable at all. The former seems better in that
case.

If _anyone_ has a proper solution for this problem, I'd greatly
appreciate it. In fact, let's put a bounty on it. I'll pitch in $20
for the solution (a way to get the true state of axes without
requiring the user to press a button first.)

I also used EnumObjects over all absolute axes to map them to -32768
to +32767. That should help with the Xbox 360 controller that defaults
to half that range or whatever (fuck you, XInput.)

Testing would be appreciated. Both for the Windows and Linux ports,
though I can't foresee there being any problems with the Linux one.

---

SDL on Win32 does the same thing ... not surprising since it just uses
DirectInput anyway.

    #include <SDL/SDL.h>
    SDL_Joystick *gamepad;

    int __stdcall WinMain(HINSTANCE, HINSTANCE, LPSTR, int) {
      SDL_InitSubSystem(SDL_INIT_JOYSTICK);
      SDL_JoystickEventState(SDL_IGNORE);

      gamepad = SDL_JoystickOpen(0);
      while(true) {
        SDL_JoystickUpdate();
        unsigned axes = SDL_JoystickNumAxes(gamepad);
        for(unsigned n = 0; n < axes; n++) {
          printf("%d = %6d; ", n, SDL_JoystickGetAxis(gamepad, n));
        }
        printf("\n");
      }

      return 0;
    }

[No archive available]
This commit is contained in:
byuu
2009-03-22 02:09:00 +00:00
parent 9ac912d100
commit e2a44195cd
Update to bsnes v041r04? release.

Diff Content Not Available
