Hi bro, thanks to you and everyone else for your comments and input. Yesterday I made magic datas modifications and at least doing the race simulation with the accelerated time no longer crashing so many cars, which allows a satisfactory race. I have not yet tested the track in a real race and this observation of yours has made me doubt. Would you mind sharing the file you corrected with me? Thanks in advance.
TomMK Wrote:
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> > Yes, I meant that cars crash.
>
>
> Mostly at the end of the back straight, right?
> I've seen this problem myself before...
>
> I believe GP4 has a bug (what, another one?!
)
> where the AI cars seem to assume the track width
> stays constant from the start of the corner. This
> causes a problem when you turn sharply from a wide
> track to a narrow track, exactly like Turn 9 at
> Phoenix (Washington St into 3rd Avenue).
>
> When being overtaken, an AI car will stay on the
> outside line, rather than the racing line /
> CC-line. They try to drive the same wide line all
> the way around the corner, but when the track
> narrows they hit the wall because they don't
> expect it there.
>
> There is no solution to this that I could find,
> only a "hack", which is to edit the .dat file to
> widen the track on the outside of the corner.
> Graphically the track looks the same and there is
> no unfair advantage (the AI won't use the extra
> width normally because the CC-line remains the
> same).
>
> Unfortunately the problem is especially pronounced
> at Erik van Leeuwen's version of Phoenix (which I
> assume is what you're using) because the track
> .dat file has a slight glitch at that corner
> anyway and also the Magic Data is not the best
> (sorry to the authors for being critical, it is a
> great track otherwise).
>
> Here's how I hacked fixed it:
>
> [
www.gp4central.com] Turn 9
> exit mod.png