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From: jwt@atari.UUCP (Jim Tittsler)
Newsgroups: comp.sys.atari.8bit
Subject: Re: mouse
Message-ID: <2198@atari.UUCP>
Date: 27 May 90 13:20:13 GMT
References: <1369@lectroid.sw.stratus.com> <3781@jato.Jpl.Nasa.Gov> <1990May24.231339.17036@cbnewsd.att.com>
Distribution: usa
Organization: Atari Corp., Sunnyvale, CA
Lines: 25

njd@cbnewsd.att.com (nick.j.dimasi) writes:

>>In article <1369@lectroid.sw.stratus.com> lennox@lectroid.sw.stratus.com (Craig Scott Lennox) writes:
>>>
>>.....
>>mouse is an inverted Trak-ball, it works on a mouse too.  I seem to remember
>>the left and right directions were reversed which added challenge to the game.
>>
>I presume you mean that the directions are reversed with the mouse.  Missle
>Command works just fine (in the proper directions) with the trakball.  The
>trakball evidently does not signal the computer exactly as the mouse does,
>since there is a modification one can make to the trakball so that it can
>emulate an ST mouse.  (I prefer the trakball with my setup anyway, since my
>...
No, the directions are correct in Missle Command when using the Atari ST
mouse.  (I changed the pinout of the ST mouse shortly before release just
so that it would be.  :-)

While the standard Atari Trak-Ball puts out a direction and velocity signal
for each axis, the software in Missle Command will also accept the quadrature
output of the ST mouse.  (The ST however can not accept the dir/velocity,
which explains the modification necessary to remove the circuitry inside
the Trak-Ball.)

Jim Tittsler, Systems Engineer, Atari Corp.