Trigger by viewing an object?

[Cerebus06 3]

I don't even know if this is possible, but I'm working on a mission where - I'm hoping - I can create a trigger when the player actually views an object.  In this case, it would be enemy personnel, vehicles, helicopters, etc.  The idea is that the player uses binoculars, a spotting scope, or a sniper scope to view the object, and once seen it fires the trigger.  Is this something that's possible within the scope of ARMA 3 scripting, or is there a better method to accomplish something like this?

[gc8 977]

I think you can use cursortarget command for that

[stanhope 411]

I'm presuming a sniper spotter team, player being spotter sniper being AI?

You could use a trigger with knowsabout or like gc8 said cursortarget combined with distance. 

If you're trying to have the AI fire use doWatch and doTarget.  If you want him to shoot at a very specific moment you can use forceWeaponFire

[POLPOX 778]

onEachFrame {
    _camDist = (positionCameraToWorld [0,0,0] distance pos) ;
    hintsilent str ((positionCameraToWorld [0,0,_camDist] distance pos)/_camDist/2)
} ;

onEachFrame {
	_screenPos = worldToScreen getPosATL sph ;
	if (count _screenPos != 0) then {
		hintsilent str (_screenPos distance2D [0.5,0.5])
	} ;
} ;

These are my stupid opinion. Set pos the position, and the hint will show you the value.

The later one has a slightly high performance.

[Cerebus06 3]

Okay, awesome - thanks a lot!  One more question - is there a way for knowsAbout to occur at a distance without the need to Reveal / Lock the target?  Or is that just a necessary quirk of ARMA 3?

[HazJ 1289]

@Larrow also posted some code (I think) somewhere but can't seem to find it... I believe he used a different approach (lineIntersects?) if my memory is correct. I think the thread was asking for use with rangefinder as well.

 

EDIT: Not sure if this is it. Not Larrow... idk

 

 

[pierremgi 4905]

cursorObject is fine for "targeting" an object without specific knowledge of friend or foe. That's very precise and that works for any object. No need to run a line intersect for that.

 

cursortarget is more unit/vehicle oriented. Note: you need to enable auto reporting in game difficulties if you're playing in SP or MP one player, without any friendly unit in your group.

[Larrow 2822]

20 hours ago, Cerebus06 said:

The idea is that the player uses binoculars, a spotting scope, or a sniper scope to view the object,

Maybe something like...

_findTargetEH = addMissionEventHandler [ "EachFrame", {
	//Are we using optics mode AND the current target is TheTarget ( replace with who/what you want spotted ) 
	_hasFoundTarget = if ( cameraView == "GUNNER" && { cursorObject == TheTarget } ) then {
		
		//If we are currently looking down some sort of binoclars
		if ( currentWeapon player isKindOf [ "Binocular", configFile >> "CfgWeapons" ] ) then {
			//We have spotted the target
			true
		}else{
			
			//If the players current weapon has an optic
			if !( player weaponAccessories currentWeapon player select 2 isEqualTo "" ) then {
				//Get the optic name
				_scope = player weaponAccessories currentWeapon player select 2;
				
				//Get the optics different modes ( reticle or iron sights )
				//If it has an array of zeroing distances with more than one value
				//This in vanilla arma3 will only happen for scopes...
				//["optic_SOS","optic_Nightstalker","optic_tws","optic_tws_mg","optic_DMS","optic_LRPS","optic_AMS","optic_AMS_khk","optic_AMS_snd","optic_KHS_blk","optic_KHS_hex","optic_KHS_old","optic_KHS_tan","optic_DMS_ghex_F","optic_SOS_khk_F","optic_LRPS_tna_F","optic_LRPS_ghex_F"]
				//And in vanilla arma3 there are no weapon scopes that have more than two modes ( ironsights and reticle ) 
				//Select that optic mode
				_opticRangedCfg = ("
					isArray( _x >> 'discreteDistance' ) &&
					{ count getArray( _x >> 'discreteDistance' ) > 1 }
				" configClasses( configFile >> "CfgWeapons" >> _scope >> "ItemInfo" >> "OpticsModes" )) select 0;
				
				//Get the optics mode zeroing ranges
				_opticRanges = getArray( _opticRangedCfg >> "discreteDistance" );
				//Get lowest zero
				_opticLowerRange = selectMin _opticRanges;
				//Get highest zero
				_opticUpperRange = selectMax _opticRanges;
				//Get players current zeroing
				_currentOpticZeroing = currentZeroing player;
				
				//If our current zero is inbetween the optic modes zeros
				//Then it is extremely likely we are currently looking down a high powered scope
				//You could add extra checks here, for example if you needed the player to spot the target
				//From atleast a minimum distance
				//OR a scope that has a specific zeroing range like the NightStalker only goes out to 1000m
				//Where most of the others have a higher max zero
				if (
					_currentOpticZeroing >= _opticLowerRange &&
					_currentOpticZeroing <= _opticUpperRange
				) then {
					true
				}else{
					false
				};
			}else{
				false
			};
		};
	};
	
	if ( _hasFoundTarget ) then {
		//Do what ever you need here
		hint "You have spotted your target";
	};
}];

...may needs some finesse depending on the functionality you want.

 

For trigger condition

Spoiler

if ( cameraView == "GUNNER" && { cursorObject == TheTarget } ) then {
		
	if ( currentWeapon player isKindOf [ "Binocular", configFile >> "CfgWeapons" ] ) then {
		true
	}else{
		
		if !( player weaponAccessories currentWeapon player select 2 isEqualTo "" ) then {
			_scope = player weaponAccessories currentWeapon player select 2;
			
			_opticRangedCfg = ("
				isArray( _x >> 'discreteDistance' ) &&
				{ count getArray( _x >> 'discreteDistance' ) > 1 }
			" configClasses( configFile >> "CfgWeapons" >> _scope >> "ItemInfo" >> "OpticsModes" )) select 0;
			
			_opticRanges = getArray( _opticRangedCfg >> "discreteDistance" );
			_opticLowerRange = selectMin _opticRanges;
			_opticUpperRange = selectMax _opticRanges;
			_currentOpticZeroing = currentZeroing player;
			
			if (
				_currentOpticZeroing >= _opticLowerRange &&
				_currentOpticZeroing <= _opticUpperRange
			) then {
				true
			}else{
				false
			};
		}else{
			false
		};
	};
};

 

 

 

A little debug console script for whittling down scope types, may be useful?

Spoiler

_scopes = "
	getNumber( _x >> 'scope' ) isEqualTo 2 &&
	getNumber( _x >> 'type' ) isEqualTo 131072 &&
	count ( '
		isArray( _x >> ''discreteDistance'' ) &&
		{ count ( getArray( _x >> ''discreteDistance'' )) > 1 }
	' configClasses( _x >> 'ItemInfo' >> 'OpticsModes' )) isEqualTo 1

" configClasses( configFile >> "CfgWeapons" ) apply { configName _x };
copyToClipboard str _scopes

//For all of CfgWeapons
//That are spawnable ( scope 2 )
//That are an optic ( type 131072 )

//For all optic modes of the optic
//That has a discreteDistance array
//And the discreteDistance array has more than one value
//Add more in here to whittle down scope type

 

[GEORGE FLOROS GR 4207]

On 24/7/2018 at 4:39 PM, Larrow said:

Maybe something like...

 

Larrow that was just great !

Thanks !