rec.autos.simulators

N2002 - AI problems

Andre Warrin

N2002 - AI problems

by Andre Warrin » Tue, 26 Feb 2002 18:40:13

Yesterday I managed to survive a 50-lap race against the AI at the
Coca Cola track (all my other fruitless attempts were allways ended by
my own mistakes btw :)

A couple of things I noticed about the AI:

- They race damn good. They're agressive, if I made a small mistake in
a corner I immediately got passed by the AI, and they defend well.

- After 10 laps there was a yellow flag caused by the AI.
My tires were still ok, I was leading, did not want to lose my
position so I did not pit. All the AI did though, so my decision was
bad, when the green flag came I was in the lead but had not enough
fuel to finish the race and all the AI had fresh tires.

But after a lap or 10 there was a yellow flag again. I pitted, and to
my surprise so did all the AI again. They had enough fuel to finish
the race, it would have been much more clever from them to stay on the
track, since now I still stayed in the lead. Bad move I think.. have
to test more but I don't think the AI is really good in calculating
when (not) to pit considering the circumstances.

- After the 2nd yellow, there were a couple of cars in front of me who
were 1 lap down. I passed them easily, they were slow, but the rest of
the pack stayed behind them. After 50 laps I won with nr.2 still being
stuck behind the backmarkers, I had about 15 seconds margin on nr.2
after the finish.
Weird, since the AI has no problems in passing me as soon as I slow
down the slightest bit.

- While driving under yellow, I got rammed from behind by the AI at
high speed. The AI did not slow down while I was driving behind the
pacecar.

These weak points from the AI don't seem too hard to fix imho.. hope
this will be issued in a patch.

Andre

Gerald Moo

N2002 - AI problems

by Gerald Moo » Tue, 26 Feb 2002 23:47:32

I have noticed similar behavior in SS races.  I came out of the pits
at Daytona and just as I was getting into Turn 3, a 3 or 4 car draft
was coming up from behind.  Rather than go high and blow by me, they
slowed down and fell in behind.  This happened a number of times over
the course of several practice sessions.  Goofy, for sure.  Maybe they
just don't like to go high.  It would be interesting to see what they
would do if the human driver leaves the bottom line open in this
situation.

Gerald


> After the 2nd yellow, there were a couple of cars in front of me who
> were 1 lap down. I passed them easily, they were slow, but the rest of
> the pack stayed behind them. After 50 laps I won with nr.2 still being
> stuck behind the backmarkers, I had about 15 seconds margin on nr.2
> after the finish.

Eldre

N2002 - AI problems

by Eldre » Wed, 27 Feb 2002 03:22:02



>- While driving under yellow, I got rammed from behind by the AI at
>high speed. The AI did not slow down while I was driving behind the
>pacecar.

Sounds like Bill Eliott's Nascar Racing...<g>

Eldred
--
Dale Earnhardt, Sr. R.I.P. 1951-2001
Homepage - http://www.umich.edu/~epickett
GPLRank - under construction...

Never argue with an idiot.  He brings you down to his level, then beats you
with experience...
Remove SPAM-OFF to reply.

John

N2002 - AI problems

by John » Wed, 27 Feb 2002 03:35:14

I remember that game too!  Once I forgot to change my setup from Talladega
when I went to Sears Point in a championship season and I think I still
won! :)

John

John DiFoo

N2002 - AI problems

by John DiFoo » Wed, 27 Feb 2002 05:17:27


> Yesterday I managed to survive a 50-lap race against the AI at the
> Coca Cola track (all my other fruitless attempts were allways ended by
> my own mistakes btw :)

> A couple of things I noticed about the AI:

> - They race damn good. They're agressive, if I made a small mistake in
> a corner I immediately got passed by the AI, and they defend well.

> - After 10 laps there was a yellow flag caused by the AI.
> My tires were still ok, I was leading, did not want to lose my
> position so I did not pit. All the AI did though, so my decision was
> bad, when the green flag came I was in the lead but had not enough
> fuel to finish the race and all the AI had fresh tires.

> But after a lap or 10 there was a yellow flag again. I pitted, and to
> my surprise so did all the AI again. They had enough fuel to finish
> the race, it would have been much more clever from them to stay on the
> track, since now I still stayed in the lead. Bad move I think.. have
> to test more but I don't think the AI is really good in calculating
> when (not) to pit considering the circumstances.

> - After the 2nd yellow, there were a couple of cars in front of me who
> were 1 lap down. I passed them easily, they were slow, but the rest of
> the pack stayed behind them. After 50 laps I won with nr.2 still being
> stuck behind the backmarkers, I had about 15 seconds margin on nr.2
> after the finish.
> Weird, since the AI has no problems in passing me as soon as I slow
> down the slightest bit.

> - While driving under yellow, I got rammed from behind by the AI at
> high speed. The AI did not slow down while I was driving behind the
> pacecar.

> These weak points from the AI don't seem too hard to fix imho.. hope
> this will be issued in a patch.

> Andre

     Considering that the AI has been doing these same bonehead moves
ever since Nascar Racing ONE, I wouldn't hold my breath...

    John DiFool

Plowbo

N2002 - AI problems

by Plowbo » Thu, 28 Feb 2002 00:51:36

Andre,

Maybe the AI is modeled after M Waltrip?  Hell, even Benny Parsons on TV
will GUESS wrong with  low# of laps to go, "and you wont see any of the
leaders pit" 1/2 lap later, "Well!! Michael Waltrip is pitting!?! out of
second place, and he's the only one !" (you can hear the "WTF" in his voice
too...  LOL).

So clever these papy guys ya know  ;)


Andre Warrin

N2002 - AI problems

by Andre Warrin » Thu, 28 Feb 2002 01:11:44

On Tue, 26 Feb 2002 09:51:36 -0600, "Plowboy"


>Andre,

>Maybe the AI is modeled after M Waltrip?  Hell, even Benny Parsons on TV
>will GUESS wrong with  low# of laps to go, "and you wont see any of the
>leaders pit" 1/2 lap later, "Well!! Michael Waltrip is pitting!?! out of
>second place, and he's the only one !" (you can hear the "WTF" in his voice
>too...  LOL).

>So clever these papy guys ya know  ;)

Hehe, that Parsons guy sounds like Murray 'no way he will pass him -
oh he passed him - oh no he didn't' Walker :)

Well another 50 lap race at Coca Cola yesterday.
The race that I told you about was set to 80% AI strength (stop
laughing) and yesterday I set the strength to 90% (stop it I said).

Qualified 22nd, had a fantastic race with this time a perfectly
behaving AI, and after a wrecknerving race with many position changes
and 5 yellows (caused by.. err.. me) I finished 22nd (STOP LAUGHING!!)

Can't wait to get home from work for my next race :)

Andre

Eldre

N2002 - AI problems

by Eldre » Thu, 28 Feb 2002 02:42:38



>     Considering that the AI has been doing these same bonehead moves
>ever since Nascar Racing ONE, I wouldn't hold my breath...

I hadn't had problems with the AI hitting me under yellow, or getting stuck
behind a backmarker, but I *have* seen the stupid pit strategy...

Eldred
--
Dale Earnhardt, Sr. R.I.P. 1951-2001
Homepage - http://www.umich.edu/~epickett
GPLRank - under construction...

Never argue with an idiot.  He brings you down to his level, then beats you
with experience...
Remove SPAM-OFF to reply.

jason moy

N2002 - AI problems

by jason moy » Thu, 28 Feb 2002 04:40:17


> But after a lap or 10 there was a yellow flag again. I pitted, and to
> my surprise so did all the AI again. They had enough fuel to finish
> the race, it would have been much more clever from them to stay on the
> track, since now I still stayed in the lead. Bad move I think.. have
> to test more but I don't think the AI is really good in calculating
> when (not) to pit considering the circumstances.

I dunno.  I think I would have pitted too.  My general rule of thumb
on yellow flags is 1. is there more than 10% of the race left 2. are
my tires worn at all (i.e. anything but 100% green).  If both of these
are 'yes' I'll pit, because unless it's really close to the end of a
race I'd rather be a few tenths of a second faster than get track
position I may lose quickly if everyone behind me pitted.  Even after
10 laps at most tracks, your tires are likely worn enough that a
pitstop is worthwhile.  I see this all the time in league races, guys
staying out with slightly worn tires and then falling back quickly on
the restart just because they're a tenth or two off because of tires,
and this gets amplified during long green flag runs since your tires
have 10 more laps on them than anyone else.  Now at Daytona, or Tally,
I'm more inclined to take 2 tires since the speed drop-off due to tire
wear isn't an issue.  I'm not sure about Coca Cola since I haven't run
much there yet, but IIRC the car started feeling a bit out of control
pretty early into a tire run.

I hate that.  I'm amazed Papy hasn't found a workaround for that yet,
since every one of their sims has had that same problem.  Which is why
you can win a Grand Prix length race in GPL even if you're 5 seconds
off the pace of the leaders just because they all bunch up behind the
slower cars.

Darn it.  So far I haven't seen that, but it was a common AI bug in
Nascar 4.  I was really hoping they'd fixed that, although it does
seem somewhat less common, at least on the tracks I race

Jason

David G Fishe

N2002 - AI problems

by David G Fishe » Thu, 28 Feb 2002 07:59:05

I was going to ask you what AI strength you were using. I didn't bother
though because I thought the problems you mentioned wouldn't be effected by
a higher setting except for the AI staying behind the slower cars.

David G Fisher


Andre Warrin

N2002 - AI problems

by Andre Warrin » Thu, 28 Feb 2002 18:27:42


So far it happened only once now in about 10 hours of racing, so
indeed it doesn't seem to happen very oft.
But frustrating though when it happens :-/

Yesterday I got hit by the AI again. 21th lap at Coca Cola, I was
third (AI at 90%, I'm improving :)) and while entering a corner the AI
touched me from behind. Within 0.0001 second I was driving headon into
the wall.. with damage at full realistic setting, not much of my car
was left after that :-/
It seems like an error that could happen in real life though, not a
complaint about the AI.

Andre

Remco Moe

N2002 - AI problems

by Remco Moe » Thu, 28 Feb 2002 19:30:14



>On Tue, 26 Feb 2002 09:51:36 -0600, "Plowboy"

>>Andre,

>>Maybe the AI is modeled after M Waltrip?  Hell, even Benny Parsons on TV
>>will GUESS wrong with  low# of laps to go, "and you wont see any of the
>>leaders pit" 1/2 lap later, "Well!! Michael Waltrip is pitting!?! out of
>>second place, and he's the only one !" (you can hear the "WTF" in his voice
>>too...  LOL).

>>So clever these papy guys ya know  ;)

>Hehe, that Parsons guy sounds like Murray 'no way he will pass him -
>oh he passed him - oh no he didn't' Walker :)

>Well another 50 lap race at Coca Cola yesterday.
>The race that I told you about was set to 80% AI strength (stop
>laughing) and yesterday I set the strength to 90% (stop it I said).

>Qualified 22nd, had a fantastic race with this time a perfectly
>behaving AI, and after a wrecknerving race with many position changes
>and 5 yellows (caused by.. err.. me) I finished 22nd (STOP LAUGHING!!)

He....hehe.....hehehe....ha.....haha....HAHA......WHAHAHAHAHAHAHAHHAHAHAHAHAHA!!!!!

Redneck!

Remco

Mike Donnelly J

N2002 - AI problems

by Mike Donnelly J » Fri, 01 Mar 2002 00:57:51


I can tell you exactly what they'll do when you leave the bottom open:
blow right by you as they should.  I did this coming out of the pits
for a unscheduled stop (still couldn't get the car up to speed,
eventually I retired from the race - sort of black flagged myself for
traveling at Kirk Shelmerdine like speeds) and figured I'd get killed
staying in the low groove so I went high and watched as all the pretty
cars went by...


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