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Continuing with addAction quirks, the 8th element in addAction params array is the condition statement. It has to return true in order for your custom action to show in action list. By default it always returns true. This condition is also evaluated every frame but there are certain rules to when it should be evaluated. Jan 20, 2014  Condition: 'FirstAidKit' in (VestItems player + Uniformitems player) This will only be true on the player who picks it up. So in the activation, put a variable to true such as: tagcondition = true; publicVariable 'tagcondition'; And then have another trigger to what you want to do when the player picks up the item. Put the condition as. This might not be relevant anymore but a much easier way of doing this is to have your second trigger set up to fire when you enter its radius, you can do this by setting it to fire for BLUFOR present, or setting your character as the owner, and then in the triggers condition box, set it up like this -!Alive Enemy1 AND this; doing this will make that trigger only fire when Enemy1 is dead.

Introduction


Triggers are an essential function for mission designers. A trigger (sometimes called a sensor) allows a mission designer to control events within a mission. Some common uses for triggers are controlling the timing of squad moves, camera control in cutscene, or even play the appropriate music when the time is right.

Properties

Activation

There are several combinations that can be created to activate the trigger. The trigger can be used to check if east or west is present, not present, or even detected by other sides within the trigger. A trigger can also be used to set up radio commands. (Be aware though, that a unit that has been setCaptive will not trigger any detected events.)
A trigger can be linked to one particular unit or group by going into Group Mode (F2), and dragging a line from the trigger to the desired unit. After this the Activation field will be set to 'Vehicle'. It can then be changed to either 'Whole group', 'Group leader' or 'Any group member'.
If an activation is set to 'repeatedly' the trigger first has to be 'deactivated' before it can fire again (e.g. if a unit activated the trigger by entering it, it will first have to leave it, before the trigger can become active again.)

Seized by..

Arma 3 Trigger Conditions List
Designed to allow easy detection of domination of one side in given area. 'Seized by..' should be used only with 'Time out' option selected. The level of dominance needed for activation of this trigger type is depending on Min, Mid and Max time given in 'Time Out' section: if the dominance is really overhelming, min. time is enough for this trigger to get activated. If the dominance is less severe, the trigger will be activated after timed out to max. value. Note that this trigger estimates side strengths in the area based on their normalized firepower per time.
Example of typical usage to detect if the area of a trigger is seized by BLUFOR:
Create a trigger configured as:
See full list on community.bistudio.com
  • Activation Seized by BLUFOR
  • Present
  • TimeOut 15-30-60
If Detected by BLUFOR is set, it limits the OPFOR units used for estimating balance of power in the trigger area only to those currently known to BLUFOR and the designer must ensure that entire trigger area is well known to BLUFOR before considering the area secured (or create multiple triggers that need to be active at the same time).

Type

What does the trigger do when activated
  • None
  • Guarded by OPFOR - Any OpFor squad with a Guard waypoint type will move to this trigger's location and await for ANY enemy contact on the ENTIRE island, then move there to engage the spotted enemy. Reference wiki for Guard waypoint type for more information on using this.
  • Guarded by BLUFOR - same as above, but for BlueFor.
  • Guarded by Independents - same as above, but for Independents.
  • Switch - switch a group to next waypoint series. The trigger should be synchronized with a cycle waypoint. You can use this to give a squad several series of waypoints which you can switch them between.
  • End #1 - terminate the mission
  • End #2
  • End #3
  • End #4
  • End #5
  • End #6
  • Lose

Countdown

Defines (in seconds) how long to wait until On Activation is fired after Condition was true. Min, Max and Mid allow you to add some randomization to the time.

Timeout

Defines (in seconds) random range from Min. to Max. for how long the trigger condition field expression must be active in order to make the trigger activated.

Condition

In addition to the 'Activation' options above, this field allows you to specify other conditions that have to be fulfilled before the Trigger activates. By default only the Boolean variable this is present in this field. It is set to the result of the main 'Activation' condition (e.g. 'east'/'present'). The expression in this field must return a Boolean value (e.g. 'this && alive player'). Trigger conditions are tested every 0.5 seconds.

On Activation/Deactivation

Defines action that is performed when trigger condition changes to true or false. Expression must either be an assignment or return Nothing. Variable denoting trigger can be created by filling in name field. Array variable thisList will contain a list of all vehicles that met the trigger condition (e.g. hint format ['%1 units in area',count thisList]).

Effects

Allows the mission designer to add music, environmental sounds, or to display title messages. Many use the effects to create quick and easy cutscenes.

Scripting

Any of a trigger's properties which can be set in its definition window can also be set or modified via a script.
A list of relevant scripting commands is available in Activators - Triggers.
(Use Ctrl + F to search for keywords)

Unit sets pipebomb

First, the unit must possess a pipebomb. Russian Spetznaz Operators carry these. Create a waypoint and in the waypoint’s ‘On activation’ field type:
Bob fire “PipeBombMuzzle”; Bob playMove “AmovPercMstpSnonWnonDnon_AinvPknlMstpSnonWnonDonon”; Now to detonate it make another waypoint or trigger, and in the ‘On activation’ field type: Bob action [“TOUCHOFF”, Bob];

Improvised explosive device

To place a randomly located, random fail rate IED click ‘Units’, ‘Class’, and set as ‘Objects’. Select any item from ‘Unit’ list as your IED and name it “IED”. To randomize, also set multiple named markers nearby set as ‘Empty’. Group them to the IED by clicking ‘Groups’ and dragging lines between them. Go to directory in documents/arma2/missions/’mission name’. Create new text file and name ‘IED.sqf’. In it type:

_shellArray =
[
“B-30mm_HE”,
“ARTY_Sh_81_HE”
“ARTY_Sh_120_HE”
];
_shell = _shellArray call BIS_fnc_selectRandom;
_explosion = _shell createvehicle position IED;
Create activating trigger circle and type
_nil = [] execVM “IED.sqf” in the ‘On Activation’ Field.

Mass paradrop

Make infantry ‘Group’ and name group leader something like “Bob”. Place an aircraft and name it something like “plane1”. In group leader Bob’s ‘Initialization’ field write
SWAT=group this; with SWAT being the desired group name. Also write {Bob moveincargo plane1}foreach units group this; in Bob’s ‘Initialization’ field. Create a trigger to eject them and ‘Synchronize’ it to the paradrop group leader Bob. Type {bob action [“eject”, plane1]} foreach units SWAT; in the triggers ‘On Activation’ field.

Call air support

Create a support unit like a BLUFOR Ah64 Apache, and name it Apache1. Make sure it is not set to ‘Flying’. Slide the ‘Fuel’ bar to 0% fuel. Give the aircraft a waypoint in the direction of the target area. Make another waypoint at the target. On this waypoint set ‘type’ to ‘Seek and destroy’. Place ‘Trigger’ near vehicle with no size. Set ‘Activation type’ to ‘Radio alpha’, bravo etc. In ‘Text’ type the name of the support action ie.‘Airstrike’. Now type Apache1 setfuel 1; in the ‘On Activation’ field of the trigger. When Radio Alpha or “Airstrike” is selected in-game, the pilot will start engines and fly to the target to seek and destroy.

HALO Jump

To make a unit spawn at any altitude and skydive followed by the option to open a steerable parachute simply write this in the ‘On Activation’ field of a trigger or waypoint: [Bob,2000] exec “caair2halodataScriptsHALO_init.sqs”; where Bob will spawn at his current position, but at an altitude of 2000 meters. You may use getpos heli1 in place of 2000 to HALO out of an aircraft. HINT: You could precede this code with the teleportation code to make him jump elsewhere.

Create support options

This will give the player the option to call in vehicle airdrop, UAV, ammo supply drop, tactical airstrike, and artillery barrage. Create player unit and place ‘SecOps Manager’ module nearby and ‘Snychronize’ them. Create ‘Radio Alpha’ trigger and name it something like “Support” and set to trigger to ‘Repeatedly’. The ‘On Activation’ field should read [[“transport”, “aerial_reconnaissance”, “supply_drop”, “tactical_airstrike”, “artillery_barrage”], player] call BIS_SOM_addSupportRequestFunc; You may omit any of the items in quotes to limit or expand your support options. You may also change “player” to a unit name. As is, the module will send you random objectives every couple of minutes and once completed will give you free support. To disable the objectives go to the SecOps Manager module and type this into the “Initialization” field:
this setVariable [“settings”,[[], true, nil, nil, false]];
To utilize this in-game, hit “0”, “0”, “Radio Alpha”. It will show a window saying “Support Available”. Hit “0”, “8” and then “Request Support”. The support option will show up and you select what you want and follow the prompts. Airstrikes can be directed with a SOFLAM Laser Designator as well.
To disable various support options, type this into the “Initialization” field of the module:
BIS_SSM_Ammodrop_available_west = false;
BIS_SSM_unitsdrop_available_west = false;

Arma 3 Trigger Script

BIS_SSM_mortar_available_west = false;
BIS_SSM_artillery_available_west = false;
BIS_SSM_ceasfire_available_west = false;
You may also create player(forward air controller) and locate ‘Simple support’ module nearby and synchronize them.

Create playable UAV

Create unit MQ-9 etc. & set to flying. Create ‘UAV’ module and create empty vehicle or object such as a TV or line keeper’s box to act as terminal. Synchronize player, MQ9 & terminal to module. To move UAV’s flight pattern on the map, just click on the map while you are in the UAV. Also, while using the UAV camera just point the crosshair at any location below to cause the aircraft to circle that point. Hit tab to lock onto vehicular targets.

Helicopter airlifts object

To make an object attach itself to a vehicle like a helicopter start by naming both vehicle and object. Now create 3 triggesr with no size. The first should have car1 distance heli1 < 8; written in the ‘Condition’ field. 8 meters seems to work well. In the ‘On activation field type car1 attachTo [heli1,[ 0, 1, -10]];where 0 is left to right, 1 is front to back and -10 is up and down. This code will attach car1 10 meters below and 1 meter ahead of heli1’s centerpoint. This is the best configuration for most helicopters. Set this trigger’s ‘TIMEOUT’ to about 2 seconds to simulate the time required to attach the hook. Now in the second trigger’s ‘Condition’ field write (getpos car1 select 2) <0.5; In the ‘On Activation’ field write detach car1; This will detach car1 from heli1 when car1 discovers that it is again under 0.5 meters off of the ground. You could also set the ‘Condition’ to this;and set the trigger ‘Activation’ to ‘Radio Alpha’. This will detach car1 on command. BE SURE TO SET ALL TRIGGERS TO ‘Repeatedly’. If you want another helicopter to be able to pick up car1, just copy the first trigger and change the name of the helicopter.

MC-130 Refueler

To build a refueler/rearming capable C-130 start by creating a C-130(empty or piloted) and naming it ‘c130’. Now create the boom by placing a ‘flagpole’ (Objects) and a ’10cm Sphere’ (‘Objects -Helpers’). Name the flagpole ‘boom’ and the sphere ‘nozzle’. Type this into the boom’s ‘Initialization’ field: boom setVectordirandup [[0,.5,-.6],[0,.5,0]]; Now type nozzle attachTo [boom,[ -.1, -.35, -4.2]]; into the nozzle’s ‘Initialization’ field. Ok, now we need 5 triggers, all with no size and set to ‘Repeatedly’. The first needs to be set to ‘Radio Alpha’ and called ‘Extend boom’. Type this into the ‘On activation’ field: boom attachTo [c130,[ 0, -11, -4]]; boom setVectordirandup [[0,.5,-.6],[0,.5,0]]; nozzle attachTo [boom,[ -.1, -.35, -4.2]]; Now create a trigger set to ‘Radio Bravo’, called ‘Retract boom’ write detach boom; boom setPos[(getMarkerPos “marker1”) select 0, (getMarkerPos “marker1”) select 1, 0];Place a marker called ‘marker1’ anywhere on the map.Ok, now we need to allow any receiving aircraft to attach itself when near. Make a trigger and type this into the ‘Condition’ field: j1 distance nozzle < 3; ‘J1’ is the recieving aircraft’s name so change accordingly. In the ‘On Activation field write this for an:
F-35: j1 attachTo [nozzle,[ 0, -1, -2.6]]; j1 setVectorup [0,-1,1];
A-10: j1 attachTo [nozzle,[ 0, -3.6, -6]]; j1 setVectorup [0,-1,1];
AV-8B: j1 attachTo [nozzle,[ 0, -2, -1.5]]; j1 setVectorup [0,-1,1];
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The next trigger will refuel/rearm ‘J1’ after 20 seconds of being attached. Be sure to set the ‘TIMEOUT’ to 20 seconds.In the ‘Condition’ field write: j1 distance nozzle < 5; Write j1 setfuel 1; j1 setvehicleammo 1; in the ‘On activation’ field for *fuel*; *ammo*;. Now for the last trigger. Name it ‘Detach aircraft’ and set to ‘Radio Charlie’ or set it to go off 20 seconds after j1 attaches itself to the nozzle. In the ‘On activation’ field write detach j1; That’s it! Now when the F-35 called ‘J1’ flies up very close to the red sphere at the end of the boom, the F-35 will “stick” to the boom and after 20 seconds will take on full fuel and ammo. Either operator may then hit ‘Detach Aircraft’ (Radio Charlie) and the F-35 will fall away from the refueler.

Add loadouts to aircraft

Arma 3 Trigger Conditions

To add to the loadout of your aircraft just add this to the ‘Initialization’ field of the aircraft or to the ‘On activation’ field of any trigger: this addweapon “Mk82BombLauncher_6”; this addmagazine “6rnd_Mk82”; If added to a trigger, be sure to change this to the aircraft’s name. Refer to ARMAII_library.pdf or the config_viewer for weapon codes.

Record path for AI to follow

To make the AI follow an exact path or flight pattern, you can use a recording function that records your movement in the editor and then makes the AI do the exact same thing in the finished mission. Start by creating a trigger set to RADIO ALPHA. In the ‘On Activation’ field write rec = [heli1,200] spawn BIS_fnc_UnitCapture; where heli1 is the name of the vehicle being used and 200 is the maximum amount of time you need. (NOTE: You will be able to stop recording if you use less time, so a little extra time never hurts.) Be sure to now place the ‘Functions’ module(f7) on the map (not required in ARMA 3!). Create a notepad document and call it init.sqf. Place this inside of the document: MyPath = compile preprocessFile “path.sqf”; Now create another notepad document and name it path.sqf. Be sure it is not saved as path.sqf.txt or path.sqf.sqs but as path.sqf.In this one type: Path = ; [heli1, Path] spawn BIS_fnc_UnitPlay; Be sure both of these documents are saved in the mission’s folder.
Now run the mission in the editor and get into the vehicle. Do not start the engine yet! Hit RADIO ALPHA and then start the engine. Proceed to drive the intended path from start to finish. When complete, hit ESC once to bring up the menu, and hit ESC again to stop recording. View the info that appears on the screen and then press F1 to save the data. Go immediately to path.sqf and click your cursor between the = sign and the semi-colon after Path and hit Ctrl V to paste. Save the document.( NOTE: For additional paths, save them on seperate documents and name them path2.sqf, path3.sqf etc. For the init.sqf document be sure to copy the first line in init.sqf and change to path2 as shown below):
MyPath = compile preprocessFile “path.sqf”;
MyPath2 = compile preprocessFile “path2.sqf”;
MyPath3 = compile preprocessFile “path3.sqf”;

Adding A Trigger That Is Activated By Only The .. - Arma 3

Now to play back the recorded path. First set the vehicle to be driven by AI and be sure the name is heli1 or whatever you decided on for the recording. Give the AI a nearby waypoint so that they start the engine prior to the script going off, otherwise there will be no vehicle sounds. Now simply activate the script by typing this into any ‘On Activation’ field: rec = [] spawn Mypath; The vehicle will now do everything you did when you were driving it. You can even loop the trigger for things like a loitering MC-130 that continuously orbits the map.