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MSFS20 Setting and clearing waypoint arrays

Misho

Misho

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ca-ontario
I have an ground vehicle object to which I set a waypoint drive plan (I won't call it a flight plan :) ), using the same method as in AIObjects sample. All works well. Now, I'd like to clear the drive plan, and stop the vehicle where it was along the drive plan when I cleared the waypoints. So, to add waypoints, I use:

Code: 
vector<SIMCONNECT_DATA_WAYPOINT> Path;
...
SimConnect_SetDataOnSimObject(hSimConnect, DEFINITION_WAYPOINT, ObjectID, 0, (DWORD)(Path.size()), (DWORD)sizeof(Path[0]), Path.data());

(which works no problem)

and to clear the drive path, I use:

Code: 
SimConnect_SetDataOnSimObject(hSimConnect, DEFINITION_WAYPOINT, ObjectID, 0, 0, 0, NULL);

... and this DOES NOT work. The vehicle keeps moving along the old convoy route. I would have expected (and I read somewhere on this forum) that the above line would clear the waypoint flight (drive) plan.

Does anyone know how to clear the waypoint plan? I was at least expecting the vehicle keep moving in the straight line after the waypoints are cleared, but no, it still follows them as if they were not cleared.

Any idea on how to do this?
 
Last edited:
Yes! Presumably you’re trying to edit an already spawned SimObject? Just delete it and spawn a new one in its place with the new waypoints.

I have that module that sets up an AI as wingman so I can look at that cpp when I get home and see if there’s anything relevant.
 
=rk= said:
Yes! Presumably you’re trying to edit an already spawned SimObject? Just delete it and spawn a new one in its place with the new waypoints.

I have that module that sets up an AI as wingman so I can look at that cpp when I get home and see if there’s anything relevant.
Click to expand...

Thanks, Rick! Indeed, sending all zero data does nothing... and spawning a new object, well, that would be the last resort.

After a few :banghead: sessions, I managed to figure out how to stop the vehicle without re-spawning it. Basically, insert a new single waypoint close to it, with speed and rpm set at zero (along with both flags for those params). The vehicle will try to reach that point at zero speed and rpm, which will effectively stop it. :)
 
👍 Nice, that is what I was looking for in the wingman code.
 
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