rec.autos.simulators

GPL AI on ovals

Tom Bon

GPL AI on ovals

by Tom Bon » Mon, 13 Mar 2000 04:00:00

I was wondering if anyone else has tried getting the GPL AI to work
correctly on the ovals.  Wherever ovals in GPL are mentioned on the various
sites they say it isn't possible due to the AI logic.  I've been playing
with the *.LP files by hand and I've gotten them to go fast and generally
smoothed out part of their driving line, but they wiggle pretty bad in
spots.  Does anyone know of a way to take the data from a replay file to get
what is needed for the LP files?  It looks like the data is there because
the GPLDump utility shows a "Lateral" graph that is the same as the graph
generated from data within the LP file.  I'm not a programmer so I can't
figure out the data segments in the replay file.  Does anyone know where I
can find this info?  I know getting them to drive smooth is one thing and
getting them to pass intelligently is quite another, but ya gotta start
somewhere.  If someone knows for a fact that getting it to work properly is
impossible please do let me know as I would like to get back to actually
driving it instead of teaching it how to drive.  :)

Thanks!

-Tom

Rafe McAulif

GPL AI on ovals

by Rafe McAulif » Tue, 14 Mar 2000 04:00:00

Have you been able to get them to work better than those AI files we
experienced a couple of months ago? The ones where the AI accelerated,
then crashed into invisible walls, then took off, then crashed, etc.

Rafe Mc

On Sun, 12 Mar 2000 02:34:33 GMT, "Tom Bond"


>I was wondering if anyone else has tried getting the GPL AI to work
>correctly on the ovals.  Wherever ovals in GPL are mentioned on the various
>sites they say it isn't possible due to the AI logic.  I've been playing
>with the *.LP files by hand and I've gotten them to go fast and generally
>smoothed out part of their driving line, but they wiggle pretty bad in
>spots.  Does anyone know of a way to take the data from a replay file to get
>what is needed for the LP files?  It looks like the data is there because
>the GPLDump utility shows a "Lateral" graph that is the same as the graph
>generated from data within the LP file.  I'm not a programmer so I can't
>figure out the data segments in the replay file.  Does anyone know where I
>can find this info?  I know getting them to drive smooth is one thing and
>getting them to pass intelligently is quite another, but ya gotta start
>somewhere.  If someone knows for a fact that getting it to work properly is
>impossible please do let me know as I would like to get back to actually
>driving it instead of teaching it how to drive.  :)

>Thanks!

>-Tom

Tom Bon

GPL AI on ovals

by Tom Bon » Tue, 14 Mar 2000 04:00:00

I don't know how they compare to those (I didn't see them), but they do stay
on the track and generally take the correct line.  The main problem I'm
having is on the front stretch at C***te (the only one I've messed with
so far).  As they come out of 4 towards the first dogleg they swerve left
and right, something like 10-15 feet on the track.  They do sort of okay on
the frontstretch, then swerve less noticeably through the second dogleg and
into 1.  They do fairly well through the turns and backstretch, with only
minor problems.  They usually don't hit the walls (visible or invisible) and
they accelerate fine.  I'm fairly certain I can correct the problems by
modifying the data by hand, but it'll take a LONG time.  Oh, and they don't
pass each other, but that's a different problem I think I can handle once I
get them driving straight.  I did find a way to use a replay, but it did not
correct the swerving.

Tom


> Have you been able to get them to work better than those AI files we
> experienced a couple of months ago? The ones where the AI accelerated,
> then crashed into invisible walls, then took off, then crashed, etc.

> Rafe Mc

> On Sun, 12 Mar 2000 02:34:33 GMT, "Tom Bond"

> >I was wondering if anyone else has tried getting the GPL AI to work
> >correctly on the ovals.  Wherever ovals in GPL are mentioned on the
various
> >sites they say it isn't possible due to the AI logic.  I've been playing

<snip>
Rafe McAulif

GPL AI on ovals

by Rafe McAulif » Wed, 15 Mar 2000 04:00:00

On Mon, 13 Mar 2000 19:03:51 GMT, "Tom Bond"


>I don't know how they compare to those (I didn't see them), but they do stay
>on the track and generally take the correct line.  The main problem I'm
>having is on the front stretch at C***te (the only one I've messed with
>so far).  As they come out of 4 towards the first dogleg they swerve left
>and right, something like 10-15 feet on the track.  They do sort of okay on
>the frontstretch, then swerve less noticeably through the second dogleg and
>into 1.  They do fairly well through the turns and backstretch, with only
>minor problems.  They usually don't hit the walls (visible or invisible) and
>they accelerate fine.  I'm fairly certain I can correct the problems by
>modifying the data by hand, but it'll take a LONG time.  Oh, and they don't
>pass each other, but that's a different problem I think I can handle once I
>get them driving straight.  I did find a way to use a replay, but it did not
>correct the swerving.

>Tom

The files I had were for Talladega and Michigan. The cars seemed to
take the right line most of the time, none of the swerving you
mentioned. But they kept rocketing off from a standing start, way too
fast, then hitting invisible barriers. Once they got going, they would
be alright, but very quick and hard to pass, 48.00 laps at 'Dega.
Plus, if you got too close, then the invisible barrier would pop up
again. I can post the files to you if you want, see what you think. AI
on the ovals would be very nice, but from all accounts the banking
doesn't allow the AI to work properly. Good Luck!!

Rafe Mc

Tom Bon

GPL AI on ovals

by Tom Bon » Wed, 15 Mar 2000 04:00:00


like to take a look at them.

Tom


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