ACE3/docs/wiki/framework/events-framework.md

layout	title	description	group	order	parent	mod
wiki	Events Framework	Explains how to use CBA event handlers with ACE3 events used to trigger or allow triggering of specific functionality and lists all documented events.	framework	5	wiki	ace

1. Event Handlers

Event handlers in ACE3 are implemented through CBA's Event System. They should be used to trigger or allow triggering of specific functionality.

2. Events List

ACE3 uses many events internally, this is not a complete list; but it should list most publicly usable events.

2.1 Fired Event Handlers (ace_common)

Different events for what type of unit has fired. E.G.: If you only need to do action when player's weapon fires, this will be faster than adding an XEH for everything. The vehicle events will also have the following local variables available _gunner (OBJECT), _turret (ARRAY).

Event Key	Parameters	Locality	Type	Description
ace_firedPlayer	[_unit, _weapon, _muzzle, _mode, _ammo, _magazine, _projectile]	Local	Listen	ACE_player fires
ace_firedPlayerNonLocal	[_unit, _weapon, _muzzle, _mode, _ammo, _magazine, _projectile]	Local	Listen	Any other player fires
ace_firedNonPlayer	[_unit, _weapon, _muzzle, _mode, _ammo, _magazine, _projectile]	Local	Listen	AI fires
ace_firedPlayerVehicle	[_vehicle, _weapon, _muzzle, _mode, _ammo, _magazine, _projectile]	Local	Listen	ACE_player turret fires
ace_firedPlayerVehicleNonLocal	[_vehicle, _weapon, _muzzle, _mode, _ammo, _magazine, _projectile]	Local	Listen	Any other player turret fires
ace_firedNonPlayerVehicle	[_vehicle, _weapon, _muzzle, _mode, _ammo, _magazine, _projectile]	Local	Listen	AI turret fires

2.2 Medical (ace_medical)

Event Key	Parameters	Locality	Type	Description
ace_unconscious	[_unit, _state(BOOL)]	Global	Listen	Unit's unconscious state changed
ace_placedInBodyBag	[_target, _bodyBag]	Global	Listen	Target placed into a bodybag Note: (Target will soon be deleted)
ace_placedInGrave	[_target, _grave]	Global	Listen	Target placed into a grave, _grave will be objNull if Create Grave Markers is disabled Note: (Target will soon be deleted)
ace_treatmentStarted	[_caller, _target, _selectionName, _className, _itemUser, _usedItem]	Local	Listen	Treatment action has started (local on the _caller)
ace_treatmentSucceded	[_caller, _target, _selectionName, _className, _itemUser, _usedItem]	Local	Listen	Treatment action is completed (local on the _caller)
ace_treatmentFailed	[_caller, _target, _selectionName, _className, _itemUser, _usedItem]	Local	Listen	Treatment action has been interrupted (local on the _caller)
ace_medical_handleUnitVitals	[_unit, _deltaT]	Local	Listen	Vitals update ran for unit, _deltaT is the time elapsed since the previous vitals update (local to _unit)

2.3 Interaction Menu (ace_interact_menu)

MenuType: 0 = Interaction, 1 = Self Interaction

Event Key	Parameters	Locality	Type	Description
ace_interactMenuOpened	[_menuType]	Local	Listen	Interaction Menu Opened
ace_interactMenuClosed	[_menuType]	Local	Listen	Interaction Menu Closed
ace_interact_menu_newControllableObject	[_typeOf]	Local	Listen	New controlable object, only fires once per type (add self interactions)

2.4 Cargo (ace_cargo)

Event Key	Parameters	Locality	Type	Description
ace_addCargo	[_item (CLASSNAME or OBJECT), _vehicle, _cargoCount]	Target	Callable	Scripted way to add cargo to vehicle
ace_cargoLoaded	[_item, _vehicle]	Global	Listen	Cargo has been Loaded into vehicle
ace_cargoUnloaded	[_item, _vehicle, _unloadType]	Global	Listen	Cargo has been Unloaded from vehicle

2.5 Captives (ace_captives)

Event Key	Parameters	Locality	Type	Description
ace_captiveStatusChanged	[_unit, _state(BOOL), _reason ("SetHandcuffed" or "SetSurrendered"), _caller]	Global	Listen	Unit's captivity state changed
ace_captives_setSurrendered	[_unit, _state(BOOL)]	Target	Callable	Sets a unit to either start or stop surrendering
ace_captives_setHandcuffed	[_unit, _state(BOOL)]	Target	Callable	Sets a unit to either start or stop being handcuffed

2.6 Settings (ace_common)

Event Key	Parameters	Locality	Type	Description
ace_settingsInitialized	[]	Local	Listen	All modules are read and settings are ready
ace_settingChanged	[_name,_value]	Local	Listen	A setting has been changed

2.7 Tagging (ace_tagging)

Event Key	Parameters	Locality	Type	Description
ace_tagCreated	[_tagObject, _texture, _tagAttachedTo (can be null), _unitThatCreated]	Global	Listen	Tag is created

2.8 Explosives (ace_explosives)

Event Key	Parameters	Locality	Type	Description
ace_allowDefuse	[_mine, _allow]	Global or Target	Callable	Set allowance of the dynamic defusal action on a mine
ace_tripflareTriggered	[_flareObject, [_posX, _posY, _posZ]]	Global	Listen	Tripflare triggered
ace_explosives_clackerAdded	[_unit, _explosive, _id]	Local	Listen	Clacker added to explosive
ace_explosives_place	[_explosive, _dir, _pitch, _unit]	Global	Listen	Explosive is armed
ace_explosives_setup	[_explosiveVehicle, _magClassname, _unit]	Global	Listen	Explosive is placed in the world

2.9 Logistics Wirecutter (ace_logistics)

Event Key	Parameters	Locality	Type	Description
ace_wireCuttingStarted	[_unit, _fence]	Global	Listen	Fence cutting started

2.9 Refuel (ace_refuel)

Event Key	Parameters	Locality	Type	Description
ace_refuel_started	[_source, _target]	Local	Listen	Refueling has started
ace_refuel_tick	[_source, _target, _amount]	Local	Listen	Amount of fuel transferred in a tick
ace_refuel_stopped	[_source, _target]	Local	Listen	Refueling has stopped

2.10 Cook Off (ace_cookoff)

Event Key	Parameters	Locality	Type	Description
ace_cookoff_cookOff	_vehicle	Global	Listen	Vehicle cook off has started
ace_cookoff_cookOffBox	_box	Global	Listen	Ammo box cook off has started
ace_cookoff_engineFire	_vehicle	Global	Listen	Engine fire has started

2.11 Attach (ace_attach)

Event Key	Parameters	Locality	Type	Description
ace_attach_attached	[_attachedObject, _itemClassname, _temporary]	Local	Listen	After an item was attached to a unit/vehicle. _temporary flag means a item is being re-attached after the player exits a vehicle
ace_attach_detaching	[_attachedObject, _itemName, _temporary]	Local	Listen	Just before an item gets detached/removed from a unit/vehicle. _temporary flag means its detached because the player unit entered a vehicle.

2.12 Trenches (ace_trenches)

Event Key	Parameters	Locality	Type	Description
ace_trenches_placed	[_unit, _trench]	Global	Listen	After trench object is placed by unit.
ace_trenches_finished	[_unit, _trench]	Global	Listen	After trench object is fully dug up by unit (100% progress).

3. Usage

Also Reference CBA Events System{:target="_blank"} documentation.

3.1 Adding / Removing Events

3.1.1 Add Event

CBA_fnc_addEventHandler - Adds an event handler with the event name and returns the event handler ID.

Arguments	Type	Optional (default value)
0	Event name	String	Required
1	Code block	Code	Required
R	Event ID	Number	Return value

3.1.2 Remove Event

CBA_fnc_removeEventHandler - Removes a specific event handler of the given event name, using the ID returned from CBA_fnc_addEventHandler.

Arguments	Type	Optional (default value)
0	Event name	String	Required
1	Event ID	Number	Required
R	None	None	Return value

3.2 Calling Events

3.2.1 Local Event

CBA_fnc_localEvent - Calls an event only on the local machine, useful for inter-module events.

Arguments	Type	Optional (default value)
0	Event name	String	Required
1	Arguments	Any	Required
R	None	None	Return value

3.2.2 Target Event

CBA_fnc_targetEvent - Calls an event only on the target machine or list of target machines.

Arguments	Type	Optional (default value)
0	Event name	String	Required
1	Arguments	Any	Required
2	Target(s)	Object OR Number OR Array	Required
R	None	None	Return value

3.2.3 Server Event

CBA_fnc_serverEvent - Calls an event only on the server machine (dedicated or self-hosted).

Arguments	Type	Optional (default value)
0	Event name	String	Required
1	Arguments	Any	Required
R	None	None	Return value

3.2.4 Global Event

CBA_fnc_globalEvent - Calls an event on all machines - the local machine, and the server machine.

Arguments	Type	Optional (default value)
0	Event name	String	Required
1	Arguments	Any	Required
R	None	None	Return value

3.3 Synchronized Events

3.3.1 Add Synchronized Event

Adds a globally synchronized event handler which will expire events after the provided time-to-live, or the code returns true.

ace_common_fnc_addSyncedEventHandler

Arguments	Type	Optional (default value)
0	Event name	String	Required
1	Code block	Code	Required
2	Time to live	Number OR Code	Optional (default: 0)
R	Event ID	Number	Return value

3.3.2 Remove Synchronized Event

Removes a specific event handler of the given event name, using the ID returned from ace_common_fnc_addSyncedEventHandler.

ace_common_fnc_removeSyncedEventHandler

Arguments	Type	Optional (default value)
0	Event name	String	Required
R	None	None	Return value

3.3.3 Call Synchronized Event

Calls a globally synchronized event, which will also be run on JIP players unless it has expired. Event will expire after the provided time-to-live, or the code returns true.

ace_common_fnc_syncedEvent

Arguments	Type	Optional (default value)
0	Event name	String	Required
1	Arguments	Any	Required
2	Time to live for this call	Number OR Code	Optional (default: 0)
R	Event ID	Number	Return value

3.4 Example

// Event handler added on a target machine
["ace_interact_tapShoulder", ace_example_fnc_onTapShoulder] call CBA_fnc_addEventHandler;

// Event called on another machine (tapping above target machine)
["ace_interact_tapShoulder", [arguments], [target]] call CBA_fnc_targetEvent;