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Homepage: http://killzonekid.com
Homepage: http://killzonekid.com


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==== Often Used Links ====
==== Often Used Links ====
[[:Category:Scripting Commands|All Arma scripting commands]]
[[:Category:Scripting Commands|All Arma scripting commands]]
<br>
<br>
'''''Arma 3 Event Handlers (before the edit with examples)'''''
= Introduction =
An event handler (abbreviated to EH) allows you to automatically monitor and then execute custom code upon particular events being triggered.
These event handlers relate to commands such as: [[addEventHandler]], [[removeEventHandler]], [[removeAllEventHandlers]].
== General MP Note ==
As opposed to OFP event handlers, a respawned unit retains the EHs it had before, so it is no longer required to re-add EHs after respawning.
The MP event handlers "MPHit", "MPKilled" and "MPRespawn" have to be assigned to the object by using [[addMPEventHandler]].
== Event Scripts ==
See also: [[Event Scripts]] for special event triggered scripts.
= Event Handler List =
== AnimChanged ==
[[Image:arguments_global.gif]] [[Image:effects_local.gif]]
Triggered every time a new animation is started. It can be assigned to a remote unit but will only fire on the PC where the actual [[addEventHandler]] command was executed.
Passed array: '''[unit, anim]'''
* unit: [[Object]] - Object the event handler is assigned to  <br>
* anim: [[String]] - Name of the anim that is started<br>
== AnimDone ==
[[Image:arguments_global.gif]] [[Image:effects_local.gif]]
Triggered every time an animation is finished. It can be assigned to a remote unit but will only fire on the PC where the actual [[addEventHandler]] command was executed.
Passed array: '''[unit, anim]'''
* unit: [[Object]] - Object the event handler is assigned to  <br>
* anim: [[String]] - Name of the anim that has been finished<br>
== AnimStateChanged ==
[[Image:arma2_1.00.gif]] [[Image:arguments_global.gif]] [[Image:effects_local.gif]]
Triggered every time an animation state changes. Unlike AnimChanged and AnimDone, it is triggered for all animation states in a sequence. It can be assigned to a remote unit but will only fire on the PC where the actual [[addEventHandler]] command was executed.
Passed array: '''[unit, anim]'''
* unit: [[Object]] - Object the event handler is assigned to  <br>
* anim: [[String]] - Name of the anim that has been started<br>
== ControlsShifted ==
[[Image:arma3_1.00.gif]] [[Image:arguments_local.gif]] [[Image:effects_local.gif]]
Triggers when controls of vehicle are shifted (pilot->co-pilot, co-pilot->pilot). Works for both, "Take" and "Release" controls actions. Event only triggers on PC where vehicle is [[local]] and EH was added.
'''NOTE:''' If helicopter is [[local]] to the server and co-pilot takes controls, the helicopter changes locality to co-pilot PC. This means that if "ControlsShifted" EH was added on both server and client, "Take Controls" action will trigger EH on the server PC, but subsequent co-pilot "Release Controls" action will trigger it on co-pilot's PC.
Passed array: '''[vehicle, newController, oldController]'''
* vehicle: [[Object]] - Vehicle which controls were shifted.<br>
* newController: [[Object]] - Unit who controls vehicle after this event.<br>
* oldController: [[Object]] - Unit who controled vehicle before this event.<br>
== Dammaged ==
[[Image:arguments_global.gif]] [[Image:effects_local.gif]]
Triggered when the unit is damaged. In ArmA works with all vehicles not only men like in OFP. It can be assigned to a remote vehicle but will only fire on the PC where the actual [[addEventHandler]] command was executed.
(If simultaneous damage occured (e.g. via grenade) EH might be triggered several times.)
Passed array: '''[unit, selectionName, damage]'''
* unit: [[Object]] - Object the event handler is assigned to  <br>
* selectionName: [[String]] - Name of the selection where the unit was damaged<br>
* damage: [[Number]] - Resulting level of damage
== Engine ==
Triggered when the engine of the unit is turned on/off.
Global. [[Image:effects_global.gif|Global effect EventHandler]]
Passed array: '''[vehicle, engineState]'''
* vehicle: [[Object]] - Vehicle the event handler is assigned to <br>
* engineState: [[Boolean]] - True when the engine is turned on, false when turned off
== EpeContact ==
[[Image:arma3_1.00.gif]] [[Image:arguments_global.gif]] [[Image:effects_local.gif]]
Triggered when object collision (PhysX) is in progress. It can be assigned to a remote vehicle but will only fire on the PC where the actual [[addEventHandler]] command was executed.
Passed array: '''[object1, object2, select1, select2, force]'''
* object1: [[Object]] - Object with attached handler.<br>
* object2: [[Object]] - Object which is colliding with object1.<br>
* select1: [[String]] - Selection of object1 which is colliding - not in use at this moment, empty string is always returned.
* select2: [[String]] - Selection of object2 which is colliding - not in use at this moment, empty string is always returned.
* force: [[Number]] - Force of collision.
== EpeContactEnd ==
[[Image:arma3_1.00.gif]] [[Image:arguments_global.gif]] [[Image:effects_local.gif]]
Triggered when object collision (PhysX) ends. It can be assigned to a remote vehicle but will only fire on the PC where the actual [[addEventHandler]] command was executed.
Passed array: '''[object1, object2, select1, select2, force]'''
* object1: [[Object]] - Object with attached handler.<br>
* object2: [[Object]] - Object which is colliding with object1.<br>
* select1: [[String]] - Selection of object1 which is colliding - not in use at this moment, empty string is always returned.
* select2: [[String]] - Selection of object2 which is colliding - not in use at this moment, empty string is always returned.
* force: [[Number]] - Force of collision.
== EpeContactStart ==
[[Image:arma3_1.00.gif]] [[Image:arguments_global.gif]] [[Image:effects_local.gif]]
Triggered when object collision (PhysX) starts. It can be assigned to a remote vehicle but will only fire on the PC where the actual [[addEventHandler]] command was executed.
Passed array: '''[object1, object2, select1, select2, force]'''
* object1: [[Object]] - Object with attached handler.<br>
* object2: [[Object]] - Object which is colliding with object1.<br>
* select1: [[String]] - Selection of object1 which is colliding - not in use at this moment, empty string is always returned.
* select2: [[String]] - Selection of object2 which is colliding - not in use at this moment, empty string is always returned.
* force: [[Number]] - Force of collision.
== Explosion ==
[[Image:arma3_0.76.gif]] [[Image:arguments_global.gif]] [[Image:effects_local.gif]]
Triggered when a vehicle or unit is damaged by a nearby explosion. It can be assigned to a remote vehicle but will only fire on the PC where the actual [[addEventHandler]] command was executed.
Passed array: '''[vehicle, damage]'''
* vehicle: [[Object]] - Object the event handler is assigned to
* damage: [[Number]] - Damage inflicted to the object
== Fired ==
Triggered when the unit fires a weapon.<br>
This EH will not trigger if a unit fires out of a vehicle. For those cases an EH has to be attached to that particular vehicle.
Global. [[Image:effects_global.gif|Global effect EventHandler]]
Passed array: '''[unit, weapon, muzzle, mode, ammo]''' <br>
OA b1.54.73642 : '''[unit, weapon, muzzle, mode, ammo, magazine, projectile]'''
* unit: [[Object]] - Object the event handler is assigned to <br>
* weapon: [[String]] - Fired weapon <br>
* muzzle: [[String]] - Muzzle that was used <br>
* mode: [[String]] - Current mode of the fired weapon<br>
* ammo: [[String]] - Ammo used <br>
* magazine: [[String]] -  magazine name which was used<br>
* projectile: [[Object]] - Object of the projectile that was shot
== FiredNear ==
Triggered when a weapon is fired somewhere ''near'' the unit or vehicle.<br>
It is also triggered if the unit itself is firing.
[[Image:arma2_1.00.gif]] Global. [[Image:effects_global.gif|Global effect EventHandler]]
(Exception(s): the Throw weapon wont broadcast the FiredNear event)
Passed array: '''[unit, firer, distance, weapon, muzzle, mode, ammo]'''
* unit: [[Object]] - Object the event handler is assigned to
* firer: [[Object]] - Object which fires a weapon near the unit
* distance: [[Number]] - Distance in meters between the ''unit'' and ''firer'' (max. distance ~69m)
* weapon: [[String]] - Fired weapon
* muzzle: [[String]] - Muzzle that was used
* mode: [[String]] - Current mode of the fired weapon
* ammo: [[String]] - Ammo used
== Fuel ==
Triggered when the unit's fuel status changes between completely empty / not empty (only useful if the event handler is assigned to a vehicle).
Global. [[Image:effects_global.gif|Global effect EventHandler]]
Passed array: '''[vehicle, fuelState]'''
* vehicle: [[Object]] - Vehicle the event handler is assigned to <br>
* fuelState: [[Boolean]] - 0 when no fuel, 1 when the fuel tank is full
 
== Gear ==
Triggered when the unit lowers/retracts the landing gear (only useful if the event handler is assigned to is a member of the class "Plane").
Global. [[Image:effects_global.gif|Global effect EventHandler]]
Passed array: '''[vehicle, gearState]'''
* vehicle: [[Object]] - Vehicle the event handler is assigned to <br>
* gearState: [[Boolean]] - True when the gear is lowered, false when retracted
 
== GetIn ==
[[Image:arguments_global.gif]] [[Image:effects_local.gif]]
Triggers when a unit enters a vehicle. It can be assigned to a remote vehicle but will only fire on the PC where the actual [[addEventHandler]] command was executed. This EH is neither triggered upon a change of positions within the same vehicle nor by the moveInXXXX commands. However it is triggered by a "GetInXXXX" [[action]].
Passed array: '''[vehicle, position, unit]'''
* vehicle: [[Object]] - Vehicle the event handler is assigned to
* position: [[String]] - Can be either "driver", "gunner", "commander" or "cargo"
* unit: [[Object]] - Unit that entered the vehicle
In vehicles with multi-turret setup, entering any turret will show "gunner" for position. You can get the actual turret information from the unit itself:
<sqf>
_heli addEventHandler ["GetIn", {
hint str assignedVehicleRole (_this select 2);
}];
</sqf>
== GetOut ==
[[Image:arguments_global.gif]] [[Image:effects_local.gif]]
Triggers when a unit gets out from a vehicle. It can be assigned to a remote vehicle but will only fire on the PC where the actual [[addEventHandler]] command was executed. This EH is triggered by both the [[moveOut]] command and by "GetOut" [[action]].
Passed array: '''[vehicle, position, unit]'''
* vehicle: [[Object]] - Vehicle the event handler is assigned to
* position: [[String]] - Can be either "driver", "gunner", "commander" or "cargo"
* unit: [[Object]] - Unit that left the vehicle
In vehicles with multi-turret setup, exiting any turret will show "gunner" for position. You can get the actual turret information from the unit itself:
<sqf>
_heli addEventHandler ["GetOut", {
hint str assignedVehicleRole (_this select 2);
}];
</sqf>
== HandleDamage ==
[[Image:arma2_1.00.gif]] [[Image:arguments_local.gif]] [[Image:effects_local.gif]]
Triggers when the unit is damaged and fires for each damaged selection separately. Works with all vehicles. This EH can accept a remote unit as argument however it will only fire when the unit is [[local]] to the PC this event handler was added on. For example, you can add this event handler to one particular vehicle on every PC. When this vehicle gets hit, only EH on PC where the vehicle is currently [[local]] will fire.
If code provided returns a numeric value, this value will overwrite the default damage of given selection after processing. Return value of 0 will make the unit invulnerable if damage is not scripted in other ways (i.e using [[setDamage]] and/or [[setHit]] for additional damage handling). If no value is returned, the default damage processing will be done. This allows for safe stacking of this event handler. Only the return value of the last added "HandleDamage" EH is considered.
Passed array: '''[unit, selectionName, damage, source, projectile]'''
* unit: [[Object]] - Object the event handler is assigned to.
* selectionName: [[String]] - Name of the selection where the unit was damaged. "" for over-all structural damage, "?" for unknown selections.
* damage: [[Number]] - Resulting level of damage for the selection.
* source: [[Object]] - The source unit that caused the damage.
* projectile: [[String]] - Classname of the projectile that caused inflicted the damage. ("" for unknown, such as falling damage.)
'''Examples:'''
This code makes Bob invulnerable:
<sqf>_eh = Bob addEventHandler ["HandleDamage", { hint "IMMA INVINCIBLED!"; 0 }];</sqf>
This code will log damage values without interfering with default damage processing:
<sqf>_eh = Bob addEventHandler ["HandleDamage", { diag_log format ["T=%1 : %2", time, _this] }];</sqf>
When shooting Bob once in the torso and once in the head, .RPT shows: <pre>
"T=11692.9 : [B Alpha 2-2:1,"head",0.0179969,<NULL-object>,"B_65x39_Caseless"]"
"T=11692.9 : [B Alpha 2-2:1,"",0.850484,B Alpha 1-1:1 (KK),"B_65x39_Caseless"]"
"T=11692.9 : [B Alpha 2-2:1,"",0.850484,B Alpha 1-1:1 (KK),"B_65x39_Caseless"]"
"T=11692.9 : [B Alpha 2-2:1,"head",0.0179969,B Alpha 1-1:1 (KK),"B_65x39_Caseless"]"
"T=11692.9 : [B Alpha 2-2:1,"body",0.0939217,B Alpha 1-1:1 (KK),"B_65x39_Caseless"]"
"T=11692.9 : [B Alpha 2-2:1,"hands",0.109993,B Alpha 1-1:1 (KK),"B_65x39_Caseless"]"
"T=11694.8 : [B Alpha 2-2:1,"head",0.899007,<NULL-object>,"B_65x39_Caseless"]"
"T=11694.8 : [B Alpha 2-2:1,"",0.346781,B Alpha 1-1:1 (KK),"B_65x39_Caseless"]"
"T=11694.8 : [B Alpha 2-2:1,"",1.19727,B Alpha 1-1:1 (KK),"B_65x39_Caseless"]"
"T=11694.8 : [B Alpha 2-2:1,"head",0.899007,B Alpha 1-1:1 (KK),"B_65x39_Caseless"]"</pre>
'''Notes:'''
* Each "HandleDamage" event shows the current damage from the damage source, '''NOT''' cumulative or the current "damage level" (health) of the target unit.
* Multiple "HandleDamage" event handlers can be added to the same unit, however only the damage return value from the last added EH will be relayed to the game engine.
* You can save the last event as timestamp ([[diag_tickTime]]) onto the unit, as well as the current health of the unit/its selections, with [[setVariable]] and query it on each "HandleDamage" event with [[getVariable]] to define a system how to handle the "HandleDamage" event.
* "HandleDamage" will continue to trigger even if the unit is already dead.
* "HandleDamage" is persistent. If you add it to the [[player]] object, it will continue to exist after player respawned. 
* "HandleDamage" can trigger "twice" per damage event. Once for direct damage, once for indirect damage (explosive damage). This can happen even in the same frame, but is unlikely:
// first HandleDamage event - direct damage by sabot hit onto an infantry unit
1081.55,[TargetUnit,"",6426.05,SourceUnit,"Sh_120_SABOT"]
1081.55,[TargetUnit,"head_hit",441.609,SourceUnit,"Sh_120_SABOT"]
1081.55,[TargetUnit,"body",333.333,SourceUnit,"Sh_120_SABOT"]
1081.55,[TargetUnit,"hands",533.333,SourceUnit,"Sh_120_SABOT"]
1081.55,[TargetUnit,"legs",533.333,SourceUnit,"Sh_120_SABOT"]
// second HandleDamage event - indirect damage by the impact - maybe force/friction applied to the unit body
1081.59,[TargetUnit,"",2.24228,TargetUnit,""]
1081.59,[TargetUnit,"head_hit",0.89672,TargetUnit,""]
1081.59,[TargetUnit,"body",3.3113,TargetUnit,""]
1081.59,[TargetUnit,"hands",3.74862,TargetUnit,""]
1081.59,[TargetUnit,"legs",10,TargetUnit,""]
Link to explanation [http://forums.bistudio.com/showthread.php?t{{=}}113418&highlight{{=}}event+handler Celery's explanation]
== HandleHeal ==
[[Image:arma2_1.00.gif]] [[Image:arguments_local.gif]] [[Image:effects_local.gif]]
Triggered when unit starts to heal (player using heal action or AI heals after being ordered). Triggers only on PC where EH is added and unit is [[local]]. If code returns false, engine side healing follows. Return true if you handle healing in script, use [[AISFinishHeal]] to tell engine that script side healing is done. See also [[lifeState]] and [[setUnconscious]] commands.
Passed array: '''[unit, healer, healercanheal]'''
* unit: [[Object]]
* healer: [[Object]]
* healercanheal: [[Boolean]] - true when healer is corpsman
== Hit ==
Triggered when the unit is hit/damaged.
Is ''not'' always triggered when unit is killed by a hit.<br>Most of the time only the [[ArmA:_Event_Handlers#Killed|killed]] event handler is triggered when a unit dies from a hit.<br>The hit EH will not necessarily fire if only minor damage occurred (e.g. firing a bullet at a tank), even though the damage increased.<br>Does not fire when a unit is set to allowDamage false.
Local. [[Image:effects_local.gif]]
Passed array: '''[unit, causedBy, damage]'''
* unit: [[Object]] - Object the event handler is assigned to <br>
* causedBy: [[Object]] - Object that caused the damage.<br>Contains the unit itself in case of collisions. <br>
* damage: [[Number]] - Level of damage caused by the hit
== HitPart ==
[[Image:arma2oa_1.60.gif]] [[Image:arguments_global.gif]] [[Image:effects_local.gif]]
Runs when the object, it was added to, gets injured/damaged. It returns the position and component that was hit on the object within a nested array, this is because the model may have more than selection name for the hit component.
While you can add "HitPart" handler to a remote unit, the respectful [[addEventHandler]] command must be executed on the shooter's PC and will only fire on shooter's PC as well. Additionally, if the unit gets damaged by any means other than shooter's shooting, "HitPart" will not fire. Because of this, this event handler is most suitable for when the shooter needs feedback on his shooting, such as target practicing or hitmarker creation.
Passed array: '''<nowiki>[[</nowiki>target, shooter, bullet, position, velocity, selection, ammo, direction, radius, surface, direct<nowiki>]]</nowiki>'''
* target: [[Object]] - Object that got injured/damaged.
* shooter: [[Object]] - Unit that inflicted the damage. If injured by a vehicle impact or a fall the target itself is returned, or, in case of explosions, the [[objNull|null object]]. In case of explosives that were planted by someone (e.g. satchel charges), that unit is returned.
* bullet: [[Object]] - Object that was fired.
* position: [[Position#Introduction|Position3D]] - Position the bullet impacted (ASL).
* velocity: [[Vector3D]] - 3D speed at which bullet impacted.
* selection: [[Array]] - Array of [[String]]s with named selection of the object that were hit.
* ammo: [[Array]] - Ammo info: [hit value, indirect hit value, indirect hit range, explosive damage, ammo class name] OR, if there is no shot object: [impulse value on object collided with,0,0,0]
* direction: [[Vector3D]] - vector that is orthogonal (perpendicular) to the surface struck. For example, if a wall was hit, vector would be pointing out of the wall at a 90 degree angle.
* radius: [[Number]] - Radius (size) of component hit.
* surface: [[String]] - Surface type struck.
* direct: [[Boolean]] - [[true]] if object was directly hit, [[false]] if it was hit by indirect/splash damage.
[[HitPart Sample]] output after DemoCharge explosion
== Init ==
Triggered on mission start or when a vehicle is created on the fly using [[createVehicle]].
Global. [[Image:effects_global.gif|Global effect EventHandler]]
Passed array: '''[unit]'''
* unit: [[Object]] - Object the event handler is assigned to
 
== IncomingMissile ==
Triggered when a guided missile locked on the target or unguided missile or rocket aimed by AI at the target was fired.
Global. [[Image:effects_global.gif|Global effect EventHandler]]
Passed array: '''[unit, ammo, whoFired]'''
* unit: [[Object]] - Object the event handler is assigned to <br>
* ammo: [[String]] - Ammo type that was fired on the unit <br>
* whoFired: [[Object]] - Object that fired the weapon
== InventoryOpened ==
Triggered when a player opens inventory.
Local. [[Image:effects_local.gif|Local effect EventHandler]]
Passed array: '''[unit, container]'''
* unit: [[Object]] - Object the event handler is assigned to <br>
* container: [[String]] - linked container or weaponholder
== Killed ==
Triggered when the unit is killed.
Local. [[Image:effects_local.gif]]
Passed array: '''[unit, killer]'''
* unit: [[Object]] - Object the event handler is assigned to <br>
* killer: [[Object]] - Object that killed the unit<br>Contains the unit itself in case of collisions. <br>
Be careful when the killer has been a vehicle. For most cases the reference of the vehicle is the same as the [[effectiveCommander]], yet not always. For example:
_gunner setVariable ["Variable",true];
_killer getVariable "Variable" => <null>
(gunner (vehicle _killer)) getVariable "Variable" => true
And sample debug output:
_killer => B 1-2-F:2
(gunner (vehicle _killer)) => B 1-2-F:2
((gunner (vehicle _killer)) == _killer) => false
== LandedTouchDown ==
Triggered when a plane (AI or player) touches the ground.
Local. [[Image:effects_local.gif]]
Passed array: '''[plane, airportID]'''
* plane: [[Object]] - Object the event handler is assigned to <br>
* airportID: [[Number]] - ID of the airport (-1 for anything else). <br>
== LandedStopped ==
Triggered when an AI pilot would get out usually. Not executed for player.
Local. [[Image:effects_local.gif]]
Passed array: '''[plane, airportID]'''
* plane: [[Object]] - Object the event handler is assigned to <br>
* airportID: [[Number]] - ID of the airport (-1 for anything else). <br>
== Local ==
Triggered when locality of object in MP is changed.
[[Image:arma3_1.00.gif]]
Passed array: '''[localUnit, local]'''
* localUnit: [[Object]] - Unit for who is object local.<br>
* local: [[Boolean]] - If the object is local on given computer.<br>
== MPHit ==
[[Image:arma2oa_1.55.gif]] [[Image:arguments_global.gif]] [[Image:effects_global.gif]]
Triggered when the unit is hit/damaged. EH can be added on any machine and EH code will trigger globally on every connected client and server. Add it only on server because if you have 10 machines on network and add this EH to every machine, when triggered the EH code will be executed 10 x 10 = 100 times.
Is ''not'' always triggered when unit is killed by a hit. Most of the time only the [[ArmA_3:_Event_Handlers#Killed|Killed]] event handler is triggered when a unit dies from a hit. The hit EH will not necessarily fire if only minor damage occurred (e.g. firing a bullet at a tank), even though the damage increased. Can also trigger several times for an explosion (direct and indirect damage). Does not fire when a unit is set to [[allowDamage]] [[false]]. However it will fire with "HandleDamage" EH added alongside stopping unit from taking damage [[addEventHandler]] ["HandleDamage",{0}]; Will not trigger when unit is dead.
This EH must be used in conjunction with the [[addMPEventHandler]] command.
Passed array: '''[unit, causedBy, damage]'''
* unit: [[Object]] - Object the event handler is assigned to <br>
* causedBy: [[Object]] - Object that caused the damage. Contains the unit itself in case of collisions. <br>
* damage: [[Number]] - Level of damage caused by the hit
'''Coding advice:'''
Call a function from the MPHit EH code space, rather to define the full code in there directly. The reason is the code space will be transferred over network on each event activation - so keep the data as small as possible!
<sqf>
// good
MyTag_Function = {
// your code
};
_unit addMPEventHandler ["MPHit", { _this call MyTag_Function }];
// bad
_unit addMPEventHandler ["MPHit", {
// your code
}];
</sqf>
== MPKilled ==
[[Image:arma2oa_1.55.gif]] [[Image:arguments_global.gif]] [[Image:effects_global.gif]]
Triggered when the unit is killed. EH can be added on any machine and EH code will trigger globally on every connected client and server. Add it only on server because if you have 10 machines on network and add this EH to every machine, when triggered the EH code will be executed 10 x 10 = 100 times.
Passed array: '''[unit, killer]'''
* unit: [[Object]] - Object the event handler is assigned to <br>
* killer: [[Object]] - Object that killed the unit<br>Contains the unit itself in case of collisions. <br>
'''Notes:'''
* This command must be used in conjunction with the command [[addMPEventHandler]] rather than the old command used for non MP commands.
* This event handler is triggered for a disconnecting player, if "playableAI" are disabled (by admin or description.ext), so that the playable unit dies on disconnect.
'''Coding advice:'''
Call a function from the MPKilled EH code space, rather to define the full code in there directly. The reason is the code space will be transferred over network on each event activation - so keep the data as small as possible!
<sqf>
//
good
MyTag_Function = {
// your code
};
_unit addMPEventHandler ["MPKilled", { _this call MyTag_Function }];
// bad
_unit addMPEventHandler ["MPKilled", {
// your code
}];
</sqf>
== MPRespawn ==
Triggered when a unit respawns.
[[Image:arma2oa_1.55.gif]] Global. [[Image:effects_global.gif|Global effect EventHandler]]
Passed array: '''[unit, corpse, ...]'''
* unit: [[Object]] - Object the event handler is assigned to
* corpse: [[Object]] - Object the event handler was assigned to, aka the corpse/unit player was previously controlling.
'''Notes:'''
This event never triggers on server: [http://feedback.arma3.com/view.php?id{{=}}14517]
As of OA 1.62, this command does not work as one would expect. It is only triggered on the machine where the unit it was assigned to is local. The only difference between '''Respawn''' and '''MPRespawn''' is that '''MPRespawn''' can be assigned from anywhere while '''Respawn''' requires the unit to be local.
This command must be used in conjunction with the command [[addMPEventHandler]] rather than the old command used for non MP commands.
== MusicStart ==
[[Image:arma3_0.50.gif]] [[Image:effects_local.gif]]
Triggers when [[Description.ext#Music|CfgMusic]] sound starts playing, after being executed with [[playMusic]] command.
This event handler needs to be added with [[addMusicEventHandler]] command and removed with [[removeMusicEventHandler]].
Passed array: '''[className, handlerID]'''
* className:  [[String]] - [[Description.ext#Music|CfgMusic]] class name of currently playing sound.<br>
* handlerID:  [[Number]] - EH id returned by [[addMusicEventHandler]].<br>
'''Example''':
<sqf>
_ehID = addMusicEventHandler ["MusicStart", { hint str _this }];
playMusic "RadioAmbient3"; // hint shows ["RadioAmbient3", 0]
[] spawn { sleep 2; playMusic ""}; // stops the music after 2 seconds
</sqf>
== MusicStop ==
[[Image:arma3_0.50.gif]] [[Image:effects_local.gif]]
Triggers when [[Description.ext#Music|CfgMusic]] sound finished  playing, after being executed with [[playMusic]] command. Note that EH will not be triggered if you force stop the music with [[playMusic]] "".
This event handler needs to be added with [[addMusicEventHandler]] command and removed with [[removeMusicEventHandler]].
Passed array: '''[className, handlerID]'''
* className:  [[String]] - [[Description.ext#Music|CfgMusic]] class name of currently played sound.<br>
* handlerID:  [[Number]] - EH id returned by [[addMusicEventHandler]].<br>
'''Example''':
<sqf>
_ehID = addMusicEventHandler ["MusicStop", { hint str _this }];
playMusic "RadioAmbient3"; // hint shows ["RadioAmbient3", 0] after a few seconds
</sqf>
== Respawn ==
Triggered when a unit respawns.
Passed array: '''[unit, corpse, ...]'''
* unit: [[Object]] - Object the event handler is assigned to <br>
* corpse: [[Object]] - Object the event handler was assigned to, aka the corpse/unit player was previously controlling. <br>
== PostReset ==
From .\functions_f\Feedback\fn_feedbackInit.sqf
//checks whether PPs were reseted by engine
BIS_EnginePPReset = false;
if (isNil {player getVariable "BIS_fnc_feedback_postResetHandler"}) then {
player setVariable ["BIS_fnc_feedback_postResetHandler", true];
player addeventhandler ["PostReset",{BIS_EnginePPReset = true;} ];
};
== Put ==
Triggers when a unit puts an item in a container.
[[Image:arma3_0.56.gif]]
Passed array: '''[unit, container, item]'''
* unit:  [[Object]] - Unit to which the event handler is assigned <br>
* container:  [[Object]] - The container into which the item was placed (vehicle, box, etc.) <br>
* item: [[String]] - The class name of the moved item <br>
== Take ==
Triggers when a unit takes an item from a container.
[[Image:arma3_0.56.gif]]
Passed array: '''[unit, container, item]'''
* unit:  [[Object]] - Unit to which the event handler is assigned <br>
* container:  [[Object]] - The container from which the item was taken (vehicle, box, etc.) <br>
* item: [[String]] - The class name of the taken item <br>
== SoundPlayed ==
Something to do with your character making noises when injured or fatigued.
== WeaponAssembled ==
Triggers when weapon gets assembled.
[[Image:arma2oa_1.55.gif]] Global. [[Image:effects_global.gif|Global effect EventHandler]]
Passed array: '''[unit, weapon]'''
* unit: [[Object]] - Object the event handler is assigned to <br>
* weapon: [[Object]] - Object of the assembled weapon. <br>
== WeaponDisassembled ==
Triggers when weapon gets disassembled.
[[Image:arma2oa_1.55.gif]] Global. [[Image:effects_global.gif|Global effect EventHandler]]
Passed array: '''[unit, primaryBag, secondarybag]'''
* unit:  [[Object]] - Object the event handler is assigned to <br>
* primaryBag:  [[Object]] - First backpack object which was weapon dissasembled into... <br>
* secondarybag: [[Object]] - Second backpack object which was weapon dissasembled into... <br>
== Curator (Zeus) EHs ==
* curatorObjectSelectionChanged
* curatorFeedbackMessage
* curatorGroupDeleted
* curatorGroupDoubleClicked
* curatorGroupEdited
* curatorGroupPlaced
* curatorGroupSelectionChanged
* curatorMarkerDeleted
* curatorMarkerDoubleClicked
* curatorMarkerEdited
* curatorMarkerPlaced
* curatorMarkerSelectionChanged
* curatorObjectDeleted
* curatorObjectDoubleClicked
* curatorObjectEdited
* curatorObjectPlaced
* curatorObjectRegistered
* curatorPinged
* curatorWaypointDeleted
* curatorWaypointDoubleClicked
* curatorWaypointEdited
* curatorWaypointPlaced
* curatorWaypointSelectionChanged
<nowiki>
|-
| <!-- Title -->
==== HandleScore ====
| <!-- Description -->
Triggered when engine adds score to overall score of the player, usually after a kill. (currently cannot be overridden like HandleRating)<br><br>'''NOTE:''' MP only, server only.
| <!-- Arguments -->
* unit: [[Object]] - Object the event handler is assigned to <br>
* object: [[Object]] - object for which score was awarded <br>
* score: [[Number]] - score added
| <!-- Effects -->
{{Icon|globalArgument|32}}{{Icon|localEffect|32}}
| <!-- Since -->
{{GVI|arma 3|1.29}}
|-
</nowiki>
TO DO (move to the blog)
If ''class Params'' is defined in [[Description.ext|description.ext]], a simple "Parameters" GUI becomes available in Multiplayer which allows the host (or admin on dedicated server) to define custom mission parameters before mission start. These params will become available to all mission scripts via [[paramsArray]] variable, which contains [[Array]] of values selected via "Parameters" GUI.
<gallery>
File:params.png|"Parameters" GUI
File:params_options.png|Available Options
File:params_edit.png|Editing Options
</gallery>
<syntaxhighlight lang="javascript">class Params
{
class paramsArray_select_0
{
title = "Item 1"; //item name
texts[] = {"One","Two","Three"}; //item text options (visible)
values[] = {1,2,3}; //item value options (can only be integers)
default = 1; //actual value (in values[]) to be set as default
};
class paramsArray_select_1
{
title = "Item 2";
texts[] = {"Ten","Twenty","Thirty"};
values[] = {10,20,30};
default = 20;
};
class paramsArray_select_2
{
title = "Item 3";
texts[] = {"One Hundred","Two Hundred","Three Hundred"};
values[] = {100,200,300};
default = 300;
};
//default value of paramsArray is [1,20,300]
};
</syntaxhighlight>
[[paramsArray]] is available on all computers and is [[Multiplayer Scripting#Join In Progress|JIP]] compatible. It gets set only once on mission start. Even though admin can select different options after mission start, the value of [[paramsArray]] will remain the same as it was on mission start. Anyone can see "Parameters" GUI if it is available, but only admin or host can edit it. Players will only see default options selected when exploring "Parameters" GUI, even if host/admin changed them.
'''Practical example of setting mission time of the day on mission start'''
''description.ext part'':
<syntaxhighlight lang="javascript">class Params
{
class Hours
{
title = "Mission Time / Hours";
texts[] = { \
"00","01","02","03","04","05", \
"06","07","08","09","10","11", \
"12","13","14","15","16","17", \
"18","19","20","21","22","23" \
};
values[] = { \
0,1,2,3,4,5,6,7,8,9, \
10,11,12,13,14,15,16, \
17,18,19,20,21,22,23 \
};
default = 12;
};
class Minutes
{
title = "Mission Time / Minutes";
texts[] = {"00","10","20","30","40","50"};
values[] = {0,10,20,30,40,50};
default = 0;
};
};
</syntaxhighlight>
''init.sqf part'':
<sqf>
if (isServer) then {
_date = date;
_date set [3, paramsArray select 0];
_date set [4, paramsArray select 1];
setDate _date;
};
</sqf>
[[:Category:Arma 3: Editing|Mission Parameters]]
Server admin / host can customize multiplayer missions in ROLE ASSIGNMENT menu using parameters prepared by the mission designer.
Important limitation. In an MP environment, the Paramsarray is not available on the client until some time after preinit. but before postinit so any code called upon the client should take this into consideration
== Overview ==
Mission parameters are integer values that are passed to the mission at the beginning and which are used by the mission designer to customise user experience accordingly. The parameters are set in [[Description.ext|description.ext]]. They can also be either manually altered by a dedicated server admin or host during ROLE ASSIGNMENT in MP lobby from available parameters menu or by including override values in dedicated server config [[server.cfg]]. In short:
* Mission maker can set up a list of parameters for the game and set default values for each
* Server admin or host can change default values by selecting different options from provided parameters menu
* Server owner can additionally override the default values in server config for each mission separately
In any case, a person selecting parameters from parameters menu at the beginning of the mission has the final say what those options will be.
<gallery>
File:params.png|"Parameters" GUI
File:params_options.png|Available Options
File:params_edit.png|Editing Options
</gallery>
== Param Types ==
There are 2 types of parameters, primary and secondary. While primary parameters are inherited from earlier versions of Arma, they are still valid and recognised by the engine.
=== Primary Params ===
Also known as '''param1''' and '''param2'''. They are defined in the following way in [[Description.ext|description.ext]], for example:
<syntaxhighlight lang="cpp">
titleParam1 = "Time limit:";
textsParam1[] = {"Unlimited", "5 min", "10 min", "15 min"};
valuesParam1[] = {0, 300, 600, 900};
defValueParam1 = 900;
titleParam2 = "Score to win:";
textsParam2[] = {"Don't keep score", "50", "100", "150"};
valuesParam2[] = {0, 50, 100, 150};
defValueParam2 = 50;
</syntaxhighlight>
Here is some info about each entry and what it means:
* ''titleParam'' - This is the title that will be displayed in parameters menu available to server admin or host at ROLE ASSIGNMENT
* ''textsParam'' - These are options presented to the server admin or host when they double click on the title in the parameters menu
* ''valuesParam'' - These are the actual param values for each of the text options, that will be passed to the mission accordingly to chosen option
* ''defValueParam'' - This is default option which would be passed to the mission if no selection was made. It '''must''' match one of the ''valuesParam'' values
The chosen option value will be stored in '''param1''' or '''param2''' variable (respectfully) and then broadcast to everyone as [[publicVariable]]. As mentioned before, ''defValueParam'' value can be overridden from the server config. Here is an example of such override for both params in [[server.cfg]]:
<syntaxhighlight lang="cpp">
class Missions
{
class Mission1
{
template = "Mission1.Altis";
difficulty = "Veteran";
param1 = 600;
param2 = 100;
};
};
</syntaxhighlight>
As with ''defValueParam'' provided override values  '''must''' match one of the ''valuesParam'' values. The logged admin during ROLE ASSIGNMENT phase can still override even server override by selecting an option from parameters UI.
=== Secondary Params ===
You can think of the secondary params as primary params extended and wrapped in a class called ''Params'':
<syntaxhighlight lang="javascript">
class Params
{
class name1
{
title = "Item 1";
texts[] = {"One","Two","Three"};
values[] = {1,2,3};
default = 1;
};
class name2
{
title = "Item 2";
texts[] = {"Ten","Twenty","Thirty"};
values[] = {10,20,30};
default = 20;
};
class name3
{
title = "Item 3";
texts[] = {"One Hundred","Two Hundred","Three Hundred"};
values[] = {100,200,300};
default = 300;
};
};
</syntaxhighlight>
As you can see the structure is the same, but the names of the entries are slightly different, but consistently different (apart from ''default''):
* ''title'' - (same as ''titleParam'') - This is the title that will be displayed in parameters menu available to server admin or host at ROLE ASSIGNMENT
* ''texts'' - (same as ''textsParam'') - These are options presented to the server admin or host when they double click on the title in the parameters menu
* ''values'' - (same as ''valuesParam'') - These are the actual param values for each of the text options, that will be passed to the mission accordingly to chosen option
* ''default'' - (same as ''defValueParam'') - This is default option which would be passed to the mission if no selection was made. It '''must''' match one of the ''values'' values
The chosen options values will be stored in '''paramsArray''' variable, in the order of appearance in the ''Params'' class and then broadcast to everyone as [[publicVariable]]. As with primary params, ''default'' value can be overridden from the server config using class names of the defined params. Here is an example of such override in [[server.cfg]]:
<syntaxhighlight lang="cpp">
class Missions
{
class Mission1
{
template = "Mission1.Altis";
difficulty = "Veteran";
class Params
{
name1 = 2;
name2 = 30;
name3 = 100;
};
};
};
</syntaxhighlight>
As override values provided '''must''' match one of the ''values'' values. The logged admin during ROLE ASSIGNMENT phase can still override the server override by selecting options from parameters UI manually.
=== Using Both Types ===
You should be careful when using both primary and secondary params in the same mission as '''paramsArray''' in this case will contain both types of parameters. For example, if just secondary params used from the example above, '''paramsArray''' would look something like this: [1,20,300]. However if both types are used at the same time, '''paramsArray''' will look something like this: [900,50,1,20,30]. The primary params are added in front of the secondary params in '''paramsArray'''.
== Mission Implementation ==
So how does it all come together? As pointed out, params are just values that are passed over to the mission. In order to retrieve passed param value in mission use [[BIS_fnc_getParamValue]] function. For example to retrieve mission param ''name2'':
<sqf>_param = ["name2", -1] call BIS_fnc_getParamValue;</sqf>
This should return 20 (in default example above) or -1 if no param with this name is found. This method is good to be used in other scripts, but there is even better way of setting mission params at the start of the mission. You can instruct the game to run a function or a script of your choice automatically by including it in the secondary ''Params'' config. Note that it is not possible to do with primary params. For example:
<syntaxhighlight lang="cpp">
class Params
{
class Daytime
{
title = "Time";
texts[] = {"Morning","Day","Evening","Night"};
values[] = {6,12,18,0};
default = 12;
function = "BIS_fnc_paramDaytime";
};
};
</syntaxhighlight>
The [[BIS_fnc_paramDaytime]] function will be executed on mission start on the server. It will also receive current value of the parameter ''Daytime'' as an argument in <tt>[[Magic Variables#this|_this]] [[select]] 0</tt>. You can also instruct the game to execute a script file instead and not just on server but on every client including the JIP clients:
<syntaxhighlight lang="cpp">
class Params
{
class ViewDistance
{
title = "View distance (in metres)";
values[] = {500,1000,2000,5000};
default = 1000;
file = "setViewDistance.sqf";
isGlobal = 1;
};
};
</syntaxhighlight>
The ''setViewDistance.sqf'' script will be [[execVM]]ed globally (''isGlobal'' = 1;) on every client and param value is passed to it in <tt>[[Magic Variables#this|_this]] [[select]] 0</tt>. If for some weird reason you have both ''function'' and ''file'' entries, the priority is given to ''function''.

Revision as of 10:42, 26 November 2023

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Killzone Kid
is my username

My Sandbox
User:Killzone Kid/Sandbox
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Special:Contributions/Killzone Kid

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