ACC 0.7 Discussion

Look at this and you'll understand some things about the creation of the AI in original AC, not to confuse with ACC but some things probably still aplies in ACC

 

I did suggest before that it may be good to introduce an 'elastic band' effect on the rolling start.

This way....
there wont be any significant gap created,
there wont be anyone forgetting to pull away,
there wont be any crashing into each other,
there wont be anyone getting too far behind,
there wont be any overtaking before lights out,
there wont be anyone getting ahead of their qualifying position,

It would keep a decent gap between each vehicle, but still give you the option to slow down or speed up a little and to get into your road position.
This effect will obviously be lifted as soon as the lights go out.

 

Thanks for posting, really good overview, makes absolute sense.
Not a million miles away from what I thought although I could only guess at the complexity of the algorithms. The idea about targets and looping forecasting the outcome of braking was an eye opener,and the bit about the brake hint was interesting and how it helps cater for different cars.

 

Yeah and I still dont know why my issue thread was set to "fixed"......

https://www.assettocorsa.net/forum/index.php?threads/0-6-rolling-start-loophole.55275/

 

my guess would be, maybe because its fixed for next major release and tagged by a dev to remember everyone and himself its fixed?

 

haha yeah maybe.. It was altered before release 7 though. Personally I think issue threads shouldn't be set as fixed when they are clearly not fixed as it creates more confusion. Set them once they are fixed and released.

 

I‘m no programmer and maybe (sorry I meant of course) the term „scripted“ is being used in a wrong way but I think we still know what he meant.

My understanding of „something was only scripted in older games“ is that an event doesn't happen as a reaction of the human player‘s input but only because the programmer wanted it to happen at just this moment („pre-scripted“).

If in a first-person-shooter a plane comes crashing to the ground and explodes it‘s not because the player hit it but because the programmer scripted it to add some immersion like in a movie.

In a racing game the AI-car doesn‘t change it‘s line because it‘s recognising the human player coming from behind and wants to close the door but just because it was a „scripted“ move, which would have happened anyway.

Or a balloon is flying over the racetrack from east to west, not because of the wind (physics) but because the programmer „scripted“/forced it to fly there...

Haha, like Lord Kunos said, I have no idea of game developement, I just wanted to mention „balloons“ in ACC forum and hope that I won‘t get banned for that

 

Thank you very much, good Sir. Exactly my point, in better wording.

 

so AI cars are moving on the inside on every straight regardless of the presence of the player?

never seen that, have you?

 

I think pre-scripted is more like in nfs underground:
If player is too fast for AI game just put AI cars right behind the player from time to time. Or, in some of "boss figts" boss will run faster in last corners.

 

I saw ai swerving weirdly on paul richards straight often.

Beside that @Minolin lots of people are getting kicked to box even if they did chose drive at race start.... I had it 2 times and it always affected other 3 or 4 cars

 

Not really, but I’ve seen balloons flying against wind direction. Oh no I did it again! Just kidding, please forgive me!

As I said I don’t know anything about programming, I just believed to know what the guy meant with the word „scripted“ and brought some (maybe wrong) examples.

By the way I still can imagine (at least in theory) such „scripted“ racing lines of AI cars in old games. The AI cars „have to drive“ at a programmed route (for example a 1:1 line like in a real life race of the past) with no attention about the human player. If the player survives it‘s good, if not he crashes. I‘m not sure if everyone would have comprehended such a „trick“ in those days. I think most would have said „Wow the AI cars drive like in a real race“ (because they really did because of the 1:1 script) and not simply cue up in a line. And the crashes would have been „racing incidents“ in the eyes of many people. Maybe I‘m wrong but just think of old arcade racers like „Pitstop“ (C64). The AI drivers surely didn‘t have any „AI“ and just drove the lines they were programmed, no matter where the human player was. „Overtaking“ was just „avoiding contact“ in those days.

Later maybe they improved the trick by not ALWAYS letting them drive the same pattern but varying each lap but still without noticing the human player. And someday the real AI came and the computer-drivers reacted to the human players (like in nowadays sims like AC, ACC).

But, as I said that’s only my imagination...

 

I guess this is the time when I say "you are right", smile awkwardly and slowly walk back

you can either follow my advice or ignore it. Up to you.

 

Ok probably a minefield but here is my take:

* Scripted-AI: behaviour that appears like intelligence but is just a set of rules/program created by a developer.

* "Non-Scripted"-AI: behaviour that is learned automatically using general AI algorithms (e.g. backpropagation, deep learning, etc. etc.) from some goal function.

So all racing game AI is scripted in that sense. It would be fun to apply the second form to racing games: goal=win the race, not-allowed=cut track, change line in breaking zone etc. If they can do it with flappy bird, why not ACC.

I think the confusion is probably with "scripted-events" which is also some game related term where seemingly complex but entirely pre-defined things happen if the player crosses some invisible boundary or so.

My curiousity is mainly whether the AI plays by the same physics rules (tyre grip etc.) as the player in the sense that it can only manipulate gas/brake and steeringwheel. In rf2 i have the impression that is the case based on the mistakes they make (maybe naive). At least in the earlier ACC builds I saw stuff which pointed to the contrary (miraculous corrections).

 

The A.I is pretty good now. Just finished some short races and nothing strange to report util more deep analysis.

 

How could I dare to not follow your advice my Lord.
I‘m already gone and thanks for not banning me.

 

Is it an IP protecting thing you are so reluctant to go into details?
If so I must remind you of rF2.
It’s better, not by miles, but still.
So why being so reluctant @Lord Kunos ?

 

Just discovered an interesting article concerning AI in racing games...

https://www.racedepartment.com/threads/motogp-19-a-closer-look-at-a-n-n-a.167216/

Let’s see if it‘s only a marketing gag or if it really will be that good.

 

I hope it will not record my swearing and than suggest a therapist...

 

I love the new Ai. I would be happy if he would address one big elephant in the room.

"I know this has probably been raised hundreds of times over the years and even recently kicked off again however I am yet to read an official response. Why does the Ai not know how to handle you when you slow down off line on the straights? ie. cool down lap, out lap or in lap. It confuses the sh!t out of them and they hesitate to drive past you forming a train. This also occurs if you have an off and rejoin the track. For me this fundamental flaw that has been caried over from AC should be high up the list so it finally can be laid to rest. I love the Ai in ACC however some words from LK would be interesting and appreciated"