[stella] Emulating the trakball controller

[David Galloway]

Maybe try Stella-Sketch with your touch tablet. Source is also available if
you want to tinker with it. It also supports Atari and Amiga mice! Well,
this is only supposing you have a Supercharger or Cuttle cart.

I restored two Atari Trak Ball units recently. The bearings needed a good
cleaning and the shafts had to have some rust sanded from their surface. Now
they work quite nicely and I really enjoyed playing missle command. Thanks
TJ.

I don't think you are going to enjoy millipede using the trak ball in
joystick mode. Why hasn't someone converted millepede or centipede to use
the track ball yet? :-)


On 1/4/07, SeaGtGruff at aol.com <SeaGtGruff at aol.com> wrote:
>
>  In a message dated 1/4/2007 8:56:14 PM Eastern Standard Time,
> ericball at atariage.com writes:
>
> As per http://www.atariage.com/forums/index.php?showtopic=88663 the CX80
> is
> basically two driving controllers i.e. gray code sequence
> 00<-->01<-->11<-->10<-->00
> while the CX22 uses one bit for direction and the other for clock.  I
> think
> one (both?) of the trackballs also had a "joystick mode".
>
>  As it happens, last weekend I recovered my old Atari Trak-Ball (CX22)
> from my parents' storage shed, and I was just about to tell you that I
> looked at it carefully and could find *no* switch on it for switching
> between two modes of operation-- but I just looked again, and hidden
> underneath the lower left corner *is* a switch for selecting "Joystick" or
> "Trak Ball" mode. Man, I think I need to take this thing apart and clean it,
> oil it, or do whatever you do to keep it in good working order. I haven't
> actually tried playing anything like Millipede with it yet, but it makes a
> lot of squeaking noises, and doesn't roll very well in the SW direction.
>
> I also recovered my old Atari Touch Tablet (CX77), which-- if I remember
> correctly-- is read just like a pair of paddles? I think it would be cool to
> write a paint program for the Atari 2600 that uses the Touch Tablet! :)
>
> Michael
>
>
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>
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