Return groups using a vehicle?

[target_practice 162]

For vehicles that have been assigned to groups (such as with the addVehicle command) is there a way to return a list of the groups to whom a vehicle has been assigned?

I'm trying to get AI groups to use their vehicle after it has been destroyed and respawned, as I have found that the respawned vehicle is no longer assigned to the group that operated it.

[pierremgi 4738]

_grps = crew myVehicle apply {group _x};
_result = _grps arrayIntersect _grps;

[target_practice 162]

Apologies for being dense, but I'm not sure what that's supposed to do.

 

Well, I see that the first line gets the group of each crew member and applies it to a local variable (I think?) but I don't get what the second line does.

[pierremgi 4738]

avoiding duplication.

See all commands in Biki. Stay curious. Mind the syntax! (most important).

[Larrow 2797]

I'm not sure there is a command to retrieve all groups assigned to a vehicle.

@pierremgi's solution does not necessarily return the correct information, as an assigned group (addVehicle) does not have to be part of the crew and instead just flags the vehicle as usable by the group.

About the only way I can think of doing this is to check all members of a group are assigned to the same vehicle. As assigning an individual unit to a vehicle _unit assignAsDriver _veh would return true if queried for its assignedVehicle assignedVehicle _unit == _veh. Yet if you addVehicle all units of the group will return true for said vehicle.

_assignedGroups = allGroups select { { assignedVehicle _x == _theVehicle }count units _x isEqualTo count units _x }

The other way would be to manually store on the vehicle an array of groups when you use addVehicle.

TAG_fnc_addGroupVehicle = {
	params[ "_group", "_vehicle" ];
	
	_assignedGroups = _vehicle getVariable[ "assignedGroups", [] ];
	_group addVehicle _vehicle;
	_vehicle setVariable [ "assignedGroups", _assignedGroups + [ _group ] ];
};

TAG_fnc_getVehicleGroups = {
	params[ "_vehicle" ];
	
	_vehicle getVariable[ "assignedGroups", [] ];
};

 

[target_practice 162]

The existence of the assignedVehicle command certainly makes things easier.

 

I'd prefer to make use of the init field in the scripted vehicle respawn module; given this, I would imagine I could reassign vehicles by first getting all assigned groups and their respective vehicles and then when each vehicle respawns, a script in the init field checks if the leader of each listed group is assigned to the old vehicle and would assign the new vehicle to groups of leaders that return true.

 

I'm not entirely sure how I would script this though. Would simply checking if one unit from a group is assigned to a vehicle be sufficient for instance?