Make unit run away from fire

[Taylor1984 14]

Hi!

 

Picture that you have an ignorant AI running towards a dangerous fire that will hurt him. I want the AI to run away from the fire when he gets too close to it, however how can you be sure that when you give the AI a waypoint or move order that it wont be placed on the other side of the fire so that the unit runs straight into the fire instead of away from it? I guess you'd have to find the unit's direction and tell him to run his dir + 180 degrees, right? How would I go about doing that?

 

Cheers, you're the best.

[beno_83au 1362]

Try getPos with its alternate syntax to get you on your way. 

[Taylor1984 14]

Thanks, exactly, that's what I understand I need to do, I just don't understand exactly how. :)

[rübe 127]

Even with doMove (or moveTo down on fsm level), making the AI run as long as known threats are around is a hard one. You'll probably have to experiment with disableAI (e.g. targeting) in an attempt to make them ignore enemies and concentrate on running, and even then... (maybe continously reseting/earsing knownTargets helps, since that's an option now?)  I'm not sure if people ever managed to do this properly/in a satisfactory way.

[froggyluv 2130]

 

Devs talked about working on this a while ago and would be a great asset to the game. Giving the AI the ability to tactically withdraw and/or straight up run would be awesome

[Taylor1984 14]

Yeah but in this case there might not even be enemy anywhere near the unit. Maybe I have to clarify that the fire I wrote about above is an actual burning fire with flames and not gun fire. I just want to find a way for a unit to run the opposite direction from whence he came.

[HazJ 1288]

Old command but worth a try:

https://community.bistudio.com/wiki/allowFleeing

Quote

Sets the cowardice level (the lack of courage or bravery) of a group or unit. The more cowardice a Group or Object has, the sooner it will start fleeing. 0 means maximum courage, while 1 means always fleeing.

Another way would be to use Fired EH or something like that, the EH is local though so keep that in mind. Are you creating this for SP or MP? As always, there will be a way.

[Taylor1984 14]

Thanks. I'm making a MP mission. But wouldn't the unit only run away when confronted with enemy units? I just want a unit to be scared of burning flames.

[HazJ 1288]

Yeah, enemy. So therefore just add Fired EH to those units. For burning flames, are they pre-defined positions or? You could create blacklist zones/areas with triggers/markers or whatever. You'd have to look on Wiki for some kind of check when they on move so it avoids that.

[Taylor1984 14]

Yeah, the position of the flames is a house that is burning and I don't want anyone walking close to that house once its burning but the AI is of course stupid and wants to walk into the building. :) There is a module called zone restriction but I'm not really sure how it works and how to use it.

[Harzach 2505]

Maybe some strategically placed Land_InvisibleBarrier_F objects?

[pierremgi 4737]

you can place/script a trigger on your fire. Set repeatable, anybody present, some radius

 

in cond:

this && isNil "fireFly"

 

 on act:

{ if (isNil {_x getVariable "wpt"} && _x inArea thistrigger) then {
_x setVariable ["wpt", group _x addWaypoint [thistrigger getPos [((triggerArea thistrigger) select 0)+3, (thistrigger getdir _x) +30],0,currentWaypoint group _x]] }} forEach thislist; firefly = true

 

 on deact:

0 = thistrigger spawn {sleep 1; firefly = nil; { if !(_x inArea _this) then {
_x setVariable ["wpt", nil] }} forEach allUnits select {!isNil {_x getVariable "firefly"}}}

 

Now your guy will turn around the trigger to reach any waypoint. If inside, they turn indefinitely.

[Taylor1984 14]

Thanks! It works pierremgi. The only thing that is a problem is that when the unit has a waypoint assigned within the trigger area he tries to run back inside the trigger forever. Is there a way to add a removal of the original waypoint that doesn't seem to disappear. Once inside the trigger a new waypoint is created but it's the number before the original so I guess you'd have to remove the original?

[pierremgi 4737]

Yep, you need to remove all waypoints inside the trigger. Just modify the on act field:

 

{ if (isNil {_x getVariable "wpt"} && _x inArea thistrigger) then {
   for "_i" from 0 to count waypoints group _x -1 do {
      if (waypointPosition [group _x,_i] inArea thistrigger) then {
        deleteWaypoint [group _x,_i];
        _i = _i-1
      }
   };
   _x setVariable ["wpt", group _x addWaypoint [thistrigger getPos [((triggerArea thistrigger) select 0)+3, (thistrigger getdir _x) +30],0,currentWaypoint group _x]] }
} forEach thislist;
firefly = true

 

[Taylor1984 14]

OK, thanks. I'll try that. I'll make sure to credit you in my mission if it's OK?

 

[pierremgi 4737]

No problem. You're welcome.