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Information for Customizing AI drivers in AMS2

Discussion in 'Automobilista 2 - General Discussion' started by gian, Nov 19, 2021.

  1. sampopel

    sampopel Active Member AMS2 Club Member

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    The guidance states:
    • A driver with Wet Skill = 1.0 goes 10% slower in a fully wet corner than in dry.
    • A driver with Wet Skill = 0.0 goes 20% slower in a fully wet corner than in dry.
    So I think a driver with Wet Skill = 0.5 means the driver goes 15% slower in a fully wet corner than in dry.
     
  2. carloscepinha

    carloscepinha caaarlosYT

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    Is it possible for me to isolate a few cars from a grid...

    like I want to do a multiclass grid TVR Tuscan GT2 and Lister Storm and Aston Martin for the GT1 and get a multiclass race using only these 3 cars, is it possible?
     
  3. gian

    gian Administrator Staff Member AMS2 Club Member

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    As Romeo said, wet skill is a reduction in corner speed of a driver in wet vs this driver own dry corner speed. But it isn't linked to race skill.

    Think of 0.5 as a normal expected reduction in corner speed of a driver in wet vs his own dry corner speed.

    Think of 1.0 as a driver thats so extremelly talented in the wet that he can do the wet corner almost in the same speed as himself does in dry.

    Think of 0.0 as a driver thats so bad in the wet like he never practiced it, that he loses a lot more corner speed than expected in the wet vs his own dry speed.

    Keep in mind those numbers were just an example as the doc says "note those numbers are just examples, the actual percentage varies per class".

    But yeah, supposing that example, a 0.5 wet_skill means the driver goes 15% slower in a fully wet corner than in dry, which would be the normal speed reduction in that example. Losing only 10% speed would be the extremelly talented wet skill driver, and losing 20% speed would be the driver who have practiced very little in wet, in that example.
     
  4. gian

    gian Administrator Staff Member AMS2 Club Member

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    Yes, as explained in the official doc in original post:

    "to race with a custom grid with only the drivers that you have overriden, you simply start a event in AMS2 with the desired opponent classes and select a number of AI opponents less or equal to the total number of AI drivers that you have overriden for those classes."
     
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  5. Ricky Richards

    Ricky Richards Member

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    If you want to do it as a one-off, rather than create a new AI file, you can also edit what car is in what class in the CRD files in Automobilista 2 > Vehicles > (name of car) so for example add A to the start of every class name to make new classes
    So for example in the Aston Martin low downforce file, the line that says
    <prop name="Vehicle Class" data="GT1_05_LD" /> you could make
    <prop name="Vehicle Class" data="AGT1_05_LD" />

    They tend to get reset from time to time though when steam works out that your files are not "correct".
     
    • Informative Informative x 1
  6. carloscepinha

    carloscepinha caaarlosYT

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    Thanks I've had to do a bit of reading and messing around with some previous files that I saw to have an idea.
    If I knew how to code I would create an app for this, this is basically notepad txt editing.

    In AC's content manager it's very easy to directly do this in the app and there is even visual feedback on some information and skin selections, etc...


    For example, in my AMS2 folder, if I search for McLaren F1 I find the GT1 cars, but if I search for Lister (for the GT1 2005 cars) I only find the files for the skin, but nothing else.
    (Search using "ctrl+F" inside the folder, for the car names of the car class I want to control for example)
     
    Last edited: Jul 7, 2026
  7. BrockBuster29

    BrockBuster29 Active Member

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    ha ha ha yeah very valid point... poor grammer by me thank mate



    Great thank you!
    I've made a bot and his logic is most drivers would be around 50% but guys like Senna and Schumacher would be closer to 100 so I dont need to tune that too much :)
     
    Last edited by a moderator: Jul 7, 2026
  8. carloscepinha

    carloscepinha caaarlosYT

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    Regarding the wet, I've just tried 115AI with wetskill setting at 1.0 so should be near the same.
    My problem wasn't about the raw pace the AI had, but that my tires got colder and lower grip faster than the AI, and the AI manages to stay out on slicks for 1 lap longer, eventually they get affected and go to the pits when the track is soaked.
    So their behaviour is actually improved, regardless of the wetskill slider.

    the race also had a x5 multiplier, does that mean the player gets affected harder than the AI?
    also, if tire wear of fuel consumption are x2, or x4, do those things actually affect the AIs?

    I'm also curious to see how can I config the way the AIs are affected by tire temperature changes.
     
  9. Stefano80

    Stefano80 Member

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    I’d like some clarification on something: if I modify an AI XMP file—for instance, by adding weight or reducing engine power—will the car I’m driving take those changes into account during a single-player race, or do they apply only to the AI opponents?
     
  10. Ace

    Ace Well-Known Member

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    See the description in the main post :)
     
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  11. Buzzhornet

    Buzzhornet Member

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    Really enjoying the new scalers, now we just need just custom ai in multiplayer as previously mentioned to take this to the stratosphere :)
     
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  12. tamarisk

    tamarisk New Member AMS2 Club Member

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    A question regarding the new drag scalar: does reducing it also cause the car to loose downforce in the corners in addition to being faster on the straights?
     
  13. Alain Fry

    Alain Fry Well-Known Member AMS2 Club Member

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    Would it be possible to update the list with the new classes :
    - GT1 2005, GT2 2005, LMP1 2005, LMP2 2005, F Ultimate Gen 1-3, FV8 Gen 1-3, FV10 Gen 3...
     
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  14. NedimMehmedovic

    NedimMehmedovic Active Member

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    I have to say, despite AIs at some tracks being in a need for a fix I still enjoy racing with them!
    But then there are those ridiculously funny AI-slop-moment
    20260721193208_1.jpg 20260721193405_1.jpg 20260721193442_1.jpg
     
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  15. Marius H

    Marius H Forum moderator Staff Member AMS2 Club Member

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    Custom AI comes with a price. :p
     
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  16. lagner1991

    lagner1991 New Member

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    I'm creating a web app for easy editing of pilots and grids. A huge part of the work is extracting livery images from the game, and now I also have to find names for the .xml files.

    We really need up-to-date names of racing series .xml files.
     
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