Where is physics engine of Grand Prix Legends?

[Monia]

Hi,
I'd like to know if it is possible, in case you haven't got source code, to open an .exe file or not. I particular, I'm interesting in drive simulator game for PC, like Grand Prix Legends ('67 F1, multiplayer online game), and I'd like to develop a "mod" for this game in which, for example, there is '75 or '80 physics engine. I don't know where is physics engine of the cars, but I saw other files of the game and I didn't find it, so I think it is in the .exe file.
I know that it's possible to change physics engine of the cars because other people developed '65 and '69 mod already.

Thanks,
Monia

[L. Spiro]

You won’t find a simple chunk of physics engine as you are expecting.
You can find parts here and there within the .EXE code.

However this isn’t exactly where you need to be looking.
Physics engines are data-driven, and the files holding the cars are the data.
The cars will have attributes that are fed into the physics engine, and you need to modify these attributes on a per-car basis.
If you really prefer to modify all cars the same way, all together, you can follow the code as the data is being fed into the physics engine and find a spot in there where you can inject code to get the desired results.


L. Spiro