DOCS ACC Shared Memory Documentation

There are no wet tyre Sets. You will Always get a fresh set. Not Sure what the value is when selecting wet tyres. There is also a value for rainTyres in the same Data object which represents whether u have wet tyres equipped or not. But afaik there is no representation of the actual tyre (dry/wet) that will be fitted during pitstop

 

Yep, exactly... and this is a problem... because there is another property: strategyTyreSet, but it shows what you are currently on the car.

This is bad, because would be great to know if you set up a wrong tyres type for the next pit

 

Can we get an update for the new cars (and one can only hope for many other requested improvements on shared memory...)?

 

car ids can be taken from server admin documentation. other than that i highly doubt there are shared mem changes

 

The data below was collected for Race Element:
- The Race Element Thread: https://www.assettocorsa.net/forum/...ng-huds-data-setups-liveries-streaming.71454/
- Github Repository https://github.com/RiddleTime/Race-Element

Brake bias offsets:

Code:

{"audi_r8_lms_gt2", -15 },
{"ktm_xbow_gt2", -20 },
{"maserati_mc20_gt2", -5 },
{"mercedes_amg_gt2", -10 },
{"porsche_935", -5 },
{"porsche_991_gt2_rs_mr", -5 },

Steering locks:

Code:

{"audi_r8_lms_gt2", 720 },
{"ktm_xbow_gt2", 582 },
{"maserati_mc20_gt2", 480 },
{"mercedes_amg_gt2", 492 },
{"porsche_935", 720 },
{"porsche_991_gt2_rs_mr", 720 },

Car Ids:

Code:

{80, Audi_R8_LMS_GT2_2021 },
{82, KTM_Xbow_GT2_2021 },
{83, Maserati_GT2_2023 },
{84, Mercedes_AMG_GT2_2023 },
{85, Porsche_991_II_GT2_RS_CS_EVO_2023 },
{86, Porsche_935_2019 },

Car Model Names

Code:

"audi_r8_lms_gt2",
"ktm_xbow_gt2",
"maserati_mc20_gt2",
"mercedes_amg_gt2",
"porsche_935",
"porsche_991_gt2_rs_mr"

 

Good man..,I managed to harvest most of the information from shared memory and the UDP interface but I couldn't figure out where to get the steering locks from
Thanks

 

Steering locks is by trial and error, I crosschecked with another developer who also collected them. But no guarantees

 

I might have a HUD in Race Element that is able to show the current steering angle of the current car..

 

Hi all,

you can always find full meta information for all ACC cars and many, many AC cars here: Simulator-Controller/Resources/Garage/Definitions/Cars at main · SeriousOldMan/Simulator-Controller (github.com)

Car IDs and names can be found here: Simulator-Controller/Resources/Simulator Data/ACC at main · SeriousOldMan/Simulator-Controller (github.com)

Full meta information for the new GT2 cars will be available this Friday (02/02/24). The IDs and names are already there.

 

Good Morning at all,
Is it possible to understand the correct position of cars in track , and show that coordinates into a map?

 

Of course:


for (int id = 0; id < gf->activeCars; id++) {
wcout << "Car." << id + 1 << ".ID=" << gf->carID[id] << endl;
wcout << "Car." << id + 1 << ".Position=" << gf->carCoordinates[id][0] << "," << gf->carCoordinates[id][2] << endl;
}

This will print out all car coordinates (in 2D).

 

Yes ,good,thanks !
Only other info ,the coordinates are refer to a map of the track i think..so where i can find a map of the track?
There are files into acc folders?or anyone jpg of the track are good ?

 

These coordinates are in meters. You must find a map pic that suites you and then do a coordinate transformation. Or you can record the coordinates from above and create your own map picture, as I have done.

 

Oh yes thanks!
What do you use for create a map picture , can use excel and create a graphic from coordinates or you used something else? what does you suggest?

 

No, I use GDI programming to create a bitmap in memory and then write it to a file including meta-data for later scaling, and so on. The stuff is open-source, but not really easy to understand. Part of a very big suite of sim racing tools. Look for the application "Track Mapper".

SeriousOldMan/Simulator-Controller: A modular and extendable administration and controller application for Sim Racing. (github.com)

 

Ok thanks so much for all information.
Have a good day

 

@Minolin

The Shared memory still reports as game version 1.7. Any change this could be changed to 1.10?

Cheers.

 

Brake bias offset for the new ford mustang gt3 is -14, car id is 36

 

thanks

 

hi y'all, I wondered if its possible to get more comments in the example file to explain more what is going on in the ACCSM_Example.cpp file?
I've been at this for a few weeks now and only gotten to the point of viewing the mapped file ( it shows up in process viewer 2 in windows, and it seems to be mapped correctly! it was exciting to see ) but not understanding now how too get say SPageFilePhysics float abs from the mapping and use that value in my code.
Might add that I'm learning Rust so that is what I'm coding in with the official Windows Crate. So I guess I'd also ask, can the "SharedFileOut" be in Rust or do I want to keep it in C#(that is what it is in the example? or is it C?) as else it wont be the same? and then use FFI to read/access the struct?

pardon my horrible understanding of all of this.. I'm still learning coding, but wanted to use this as a project to get better at it! plus I'm learning embedded rust on my RP Pico's which I want to turn into a HID so I can as an example: make my rumble motors vibrate on my brake pedals when ABS kicks in. Yes I know SimHub exist, and I have used that to do this. But I want to learn how I can do it myself with my own little software!
also if there are good tutorials/documentation that would help me understand shared memory and software dev for games like ACC etc, please point me towards it as I am struggling to find it!
cheers!

Edit:
I'm mostly confused on these parts in the example code:
SPageFilePhysics* pf = (SPageFilePhysics*)m_physics.mapFileBuffer;
what does this do? pf is a pointer to the different values in the SPageFilePhysics struct?
and what does "(SPageFilePhysics*)" do? I'm a little confused on C++ structure..

also the whole printData()/printData2() part I'm confused on as well.. is this where the magic happens? where values are getting "copied" from the mapping or something? that is the part I'd want the most deciphering on
also as a little sidequest. What does the arraysize() do, and where is it even used?