Posted: 14 May 2007 at 11:38pm | IP Logged

Cool, didn't know there was a ccs file inside the car file, as I don't do much with car converting. I've converted a csu to ccs for AI on my own track, but haven't taken the time to figure out how to give the AI different lines so they don't all just follow single-file around the track... yet, so haven't had much use for the ccs files until that gets done.

Posted: 15 May 2007 at 4:05pm | IP Logged

Perhaps not. I think I screwed up my AI settings a long time ago in the diagnostic mode using race.exe, so I'm not sure what is normal anymore. Do the AI ever overtake each other? I thought I remember they used to, but now all they do in my game is break when they get too close.

Posted: 15 May 2007 at 10:05pm | IP Logged

Uhm..we created new AI for the VRgt tracks...we used the Porche GT2's (we had to create a special AI-car in order for them to get decent laptimes however). I'm not sure what we did to achieve this..*rusty memory* but I think it involved the css editing...maybe Matt can say something sensible about this matter.

I know tho for a fact that AI can takeover...I had to make a ghostlap for each single one of the AI on each track...driving in a "special"-matter so the AI would not get mixed up on stuff like hard braking and such...it's fun to see the AI drive your ghostlines afterwards..but it is a teadious *spelling? job to get everything ok...

Pff...where did we ever find the time and efford to achieve this...lol

Btw this AI can be experienced with the VRgt demo only

Posted: 16 May 2007 at 7:48am | IP Logged

Everything. We changed the lines that the AI cars drive (each AI car drives their own unique line on each individual track). We changed the AI .car to make it possible for the AI cars to drive on the more tricky VRgt tracks (we have much tighter corners for example and more narrow cirquits) and we tuned each AI car's (driver's) css performance individually to create more realistic AI performance such as overtaking and even braking pass each other before corners etc. I think we tuned the performance in the css files. I can't remember as this was 4 years ago. I can have a look at the other computer if you like and see what files we changed.

Posted: 21 May 2007 at 4:41pm | IP Logged

sucahyo wrote: Matt wrote: I can have a look at the other computer if you like and see what files we changed. I would love that .

Ok, I had a look and the files I've backed up several vesions of in seperate dated folders are the aidriver.adr and the drivers.res so those are the files we changed. This was back in 2004.

I changed the acceleration, topspeed, grip and decelleration etc individually for each AI driver on each individual track and AI skill level. Tony also created individual ghost laps (driving lines) for each individual AI driver at each individual track and I created a special AI car that made it easier for the AI drivers to drive through some of the more tricky parts of the tracks without spinning out, crash into each other or otherwise mess up the overall AI realism and performance. The downside to this car was that it had much too fast an acceleration from a standing start because of unrealistic amounts of longitudal tire grip. The overall results was great however. We took the AI from not being able to drive around our tracks at all to a point where they created just the right amount of challenge and with rather realistic behaviour, overtaking each other and you as a player etc. 

I also created our own version of the Career Mode. To do this I changed the gtlot.ugs and english.lng I believe. We were under some time pressure to release the VRGT Demo so the result could have been better. It is fully working however. The trick to get through it is to only buy upgrades that will give you more cornering grip at first for as long as your car is faster than the AI's and to buy the upgrade that gives you the best bang for buck. Do a backup of your career's save file before each time you buy a new upgrade and you'll never have any problems.

Posted: 21 May 2007 at 4:45pm | IP Logged

I forgot to say that we only changed the AI performance for the VRgt tracks that are included in the VRgt Demo plus the track "Patuwo" I believe.