OPP files (opponents)

[Cas]

Ah!  I understand now. So the position in the file indicates the stunt and the value indicates how much of a slowdown for that stunt. Right?  This is super easy!  We can begin experimenting

The curious thing is that, while it makes a lot of sense, it seems to overlap with the function of the other section. See here: http://wiki.stunts.hu/index.php?title=Opponent_files

The sped section is very brief. What you are describing, I understand, is the path section, which happens to be as long as the number of track elements. However, the function of these two sections is then very similar, in a way. I wonder how the two interact.

[Daniel3D]

Sped is purely speed data per tile type. Path is directional left / right.

Based on memory of strange ai behaviour I believe the path variable makes the opponent deviate from the ideal path by a factor. Measured from the centre of the road.

On slalom the ai should take the corner's wider.
EDIT: I see now that none of the opponents have a modifier for the slalom (row 7 variable 3 and 4).
Same for the cork u/d and the highway.
I wonder why.. could be interesting to give those high values....
/Edit

I can't test though. All testing programs and data is in storage at the moment. 

The ideal path I believe is set in the track tile data with the collision data. (Maybe that combination makes it so difficult to find)

[Daniel3D]

Nice visual (taken from Gemini)


(The isometric tiles are a unrelated bonus)

In the YouTube video (link in a post about track files) Gemini maps all tile numbers in a grid (see blurred image in attachment)
Curiously that stops at b5, but the opponent path file goes to b9...
[B6 -> B9 - Paved slopes]
Those four can have path data. Dirt and ice slopes can't... Apparently..

[Cas]

I should take a look and update the Wiki with that info

[Daniel3D]

You know,..
I actually feel honoured to have found something significant enough to be added to the wiki.

[Cas]

And you surely should be mentioned there!   But before editing, we should test this thoroughly. You might find this useful:

http://www.raceforkicks.com/downloads/fodix04.zip

It's a program I made years ago. I should be rewriting the whole of it because it's not optimal (the window is small and while it's GUI-based, you have to call it from the command line with a file name as a parameter), but it works and it's very useful for viewing and editing binary files. It should make it very easy to edit the opponent files.

EDIT: Updated link. 23-02-2021

[Daniel3D]

 
Thanks for the tool. Still have my laptop in storage, but I will look into this asap.

[Daniel3D]

I've watched Skid and Bernie go through the loop (because Bernie has the largest value there in path)

But I see nothing... Besides the speed.
The path is the same for both...

Bernie dit some weird driving when I was following, Skid didn't seem to be bothered, but maybe I was closer to Bernie.

When I make a false start Bernie just does his lap.

Not an easy one ... 

[Cas]

Probably, testing "actively" will yield clearer results. I mean, not just observing the current settings, but altering them while leaving everything else the same and looking at what's different