Lou Montana/Sandbox – User

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{{SideTOC}}
[[Category: Sandbox]]
== Introduction ==
{{Feature|informative|To go on [[Initialisation Order]].}}


This article will try to be a general guide about improving your '''mission's''' code '''and''' its performance.
{| class="wikitable sortable align-center align-left-col-1"
{{ Informative | This page is about [[Mission Optimisation]]. For ''scripting'' optimisation, see [[Code Optimisation]]. }}
|+ Order of Initialisation (use column sorting for respective machine order)
{{ Informative | '''See also [[Multiplayer Scripting]]'''. }}
! rowspan="2" class="unsortable" style="text-align: center" | Task
! rowspan="2" | Exec Environment
! rowspan="1" colspan="5" class="unsortable" | Machine
|-
! Single Player
! Dedicated Server
! Hosted Server
! Multiplayer Client
! [[Multiplayer Scripting#Join In Progress|JIP]] MP Client


|-
| [[Arma 3: Functions Library|Functions]] with <syntaxhighlight lang="cpp" inline>recompile</syntaxhighlight> {{Link|Arma 3: Functions Library#Attributes 3|attribute}} are recompiled
| {{n/a}}
| 1 <!-- Single Player -->
| 1 <!-- Dedicated Server -->
| 1 <!-- Hosted Server -->
| 1 <!-- Multiplayer Client -->
| 1 <!-- JIP MP Client -->


== Creating your mission ==
|-
| [[Arma 3: Functions Library|Functions]] with <syntaxhighlight lang="cpp" inline>preInit</syntaxhighlight> {{Link|Arma 3: Functions Library#Attributes 3|attribute}} are called
| [[Scheduler#Unscheduled Environment|Unscheduled]]
| 2 <!-- Single Player -->
| 2 <!-- Dedicated Server -->
| 2 <!-- Hosted Server -->
| 2 <!-- Multiplayer Client -->
| 2 <!-- JIP MP Client -->


* Be sure to create your scripts with the latest available commands.
|-
** In {{arma3}} '''DITCH [[BIS_fnc_MP]] FOR GOOD''' and use [[remoteExec]]&nbsp;/&nbsp;[[remoteExecCall]] instead! See [[Arma 3 Remote Execution]].
| Object Init Event Handlers are called
** In {{arma2}} '''ONLY''' use the [[Multiplayer framework]].
| [[Scheduler#Unscheduled Environment|Unscheduled]]
* Use the available frameworks
| 3 <!-- Single Player -->
** [[Arma 3 Task Framework]]
| 3 <!-- Dedicated Server -->
<!--
| 3 <!-- Hosted Server -->
== Improving without breaking ==
| 3 <!-- Multiplayer Client -->
-->
| {{Icon|unchecked}} <!-- JIP MP Client -->


== ''Moar FPS!!1!'' ==
|-
| Expressions of [[Eden Editor: Configuring Attributes|Eden Editor entity attributes]] are called<ref name="isPlayer"><sqf inline>isPlayer _entity</sqf> does not return [[true]] immediately. Once the entity has become a [[player]], it is transferred to the client.</ref>
| [[Scheduler#Unscheduled Environment|Unscheduled]]
| 4 <!-- Single Player -->
| 4 <!-- Dedicated Server -->
| 4 <!-- Hosted Server -->
| {{Icon|unchecked}} <!-- Multiplayer Client -->
| {{Icon|unchecked}} <!-- JIP MP Client -->


* AI will eat their host's CPU:
|-
** Use agents whenever possible
| Object initialisation fields are called
** If a client has a low-end machine, they shouldn't lead a group of many AIs as these would then be locally computed.
| [[Scheduler#Unscheduled Environment|Unscheduled]]
** [[Arma 3 Dynamic Simulation]] allows you to freeze AI that are distant from players. Many distance settings should be set according to the mission.
| 5 <!-- Single Player -->
** [[Arma 3 Simple Objects|Simple Objects]]
| 5 <!-- Dedicated Server -->
* Less objects = more FPS
| 5 <!-- Hosted Server -->
** Less mission objects
| 4 <!-- Multiplayer Client -->
** Less weapon items / HMD / backpacks = less proxies (item position is calculated)
| 3 <!-- JIP MP Client -->
** Delete dead bodies / wreckages
* [[viewDistance|View distance]]
* Triggers check their condition every 0.5 second (hardcoded value). If you don't need such precision, use a [[while]]-loop script.


{{ Informative | Most if not all of the '''mission''' calculation (objectives, completion distance, etc.) must be done '''server-side'''. Local effects should be calculated '''client-side'''. }}
|- style="background-color: #95F0AD"
| [[Event Scripts#init.sqs|init.sqs]] is executed
|
| 6 <!-- Single Player -->
| <!-- Dedicated Server -->
| <!-- Hosted Server -->
| <!-- Multiplayer Client -->
| <!-- JIP MP Client -->


=== Server-side FPS ===
|- style="background-color: #95F0AD"
* The server should be considered as a powerful machine from a scripting point of view; .
| [[Event Scripts#init.sqf|init.sqf]] is executed
* If you own more than one average computers, you could consider [[Arma 3 Headless Client|Headless client]] and coding accordingly.
| [[Scheduler#Scheduled Environment|Scheduled]]<ref name="enginewaits">Note '''in single player''' that while the environment is [[Scheduler#Scheduled Environment|Scheduled]] ([[canSuspend]] returns true), the engine seems to wait until the script is done executing, essentially behaving similarly to an [[Scheduler#Unscheduled Environment|Unscheduled environment]] - infinite loops will freeze the game, [[uiSleep]] may pause the game for up to ~20s (postInit), [[waitUntil]] can cause catastrophic issues, etc.</ref>
| <!-- Single Player -->
| <!-- Dedicated Server -->
| <!-- Hosted Server -->
| <!-- Multiplayer Client -->
| <!-- JIP MP Client -->


=== Client-side FPS ===
|-
| Expressions of [[Eden Editor: Configuring Attributes|Eden Editor scenario attributes]] are called<ref name="playerCommandNotAvailable">[[player]] is not available immediately.</ref>
| [[Scheduler#Unscheduled Environment|Unscheduled]]
| <!-- Single Player -->
| <!-- Dedicated Server -->
| <!-- Hosted Server -->
| <!-- Multiplayer Client -->
| <!-- JIP MP Client -->


==== Script optimisation ====
|- style="background-color: #95DEF0"
* Don't [[publicVariable]] at a high rate
| Persistent functions are called
* Don't spawn many objects
|
* Client [[viewDistance|view distance]] can be set separately from the server's value through scripting. This can make or break performance for the client.
| <!-- Single Player -->
| <!-- Dedicated Server -->
| <!-- Hosted Server -->
| <!-- Multiplayer Client -->
| <!-- JIP MP Client -->


==== Configuration optimisation ====
|-
* If the client has issues playing in singleplayer, it is most likely that his hardware configuration is not up to the game's current settings, and will encounter even more issues in multiplayer.
| [[Modules]] are initialised
*
|
| <!-- Single Player -->
| <!-- Dedicated Server -->
| <!-- Hosted Server -->
| <!-- Multiplayer Client -->
| {{Icon|unchecked}} <!-- JIP MP Client -->


|- style="background-color: #DEF0AD"
| [[Event Scripts#initServer.sqf|initServer.sqf]] is executed
| [[Scheduler#Scheduled Environment|Scheduled]]
| <!-- Single Player -->
| <!-- Dedicated Server -->
| <!-- Hosted Server -->
| {{n/a}} <!-- Multiplayer Client -->
| {{n/a}} <!-- JIP MP Client -->


== Off-the-shelf script ==
|- style="background-color: #DEF0AD"
| [[Event Scripts#initPlayerLocal.sqf|initPlayerLocal.sqf]] is executed
| [[Scheduler#Scheduled Environment|Scheduled]]
| <!-- Single Player -->
| {{n/a}} <!-- Dedicated Server -->
| <!-- Hosted Server -->
| <!-- Multiplayer Client -->
| <!-- JIP MP Client -->


<code>_unit [[removePrimaryWeaponItem]] "acc_pointer_IR";
|- style="background-color: #DEF0AD"
_unit [[removePrimaryWeaponItem]] "acc_flashlight";
| [[Event Scripts#initPlayerServer.sqf|initPlayerServer.sqf]] is executed on the server
[[if]] ([[sunOrMoon]] == 1) { _unit [[unlinkItem]] [[hmd]] _unit; };
| [[Scheduler#Scheduled Environment|Scheduled]]
</code>
| <!-- Single Player -->
| {{n/a}} <!-- Dedicated Server -->
| ?? <!-- Hosted Server -->
| <!-- Multiplayer Client -->
| <!-- JIP MP Client -->


|-
| [[Arma 3: Functions Library|Functions]] with <syntaxhighlight lang="cpp" inline>postInit</syntaxhighlight> {{Link|Arma 3: Functions Library#Attributes 3|attribute}} are called
| [[Scheduler#Scheduled Environment|Scheduled]]<ref name="enginewaits"/>
| <!-- Single Player -->
| <!-- Dedicated Server -->
| <!-- Hosted Server -->
| <!-- Multiplayer Client -->
| <!-- JIP MP Client -->


== What's next? ==
|- style="background-color: #95DEF0"
| [[Event Scripts#init.sqs|init.sqs]] is executed
| [[Scheduler#Scheduled Environment|Scheduled]]
| <!-- Single Player -->
| <!-- Dedicated Server -->
| <!-- Hosted Server -->
| <!-- Multiplayer Client -->
| <!-- JIP MP Client -->


* drop unoptimised mods
|- style="background-color: #95DEF0"
| [[Event Scripts#init.sqf|init.sqf]] is executed
| [[Scheduler#Scheduled Environment|Scheduled]]
| <!-- Single Player -->
| <!-- Dedicated Server -->
| <!-- Hosted Server -->
| <!-- Multiplayer Client -->
| <!-- JIP MP Client -->


|-
| [[remoteExec]]'s [[Multiplayer Scripting#Join In Progress|JIP]] queue
| {{n/a}}
| {{n/a}} <!-- Single Player -->
| {{n/a}} <!-- Dedicated Server -->
| {{n/a}} <!-- Hosted Server -->
| {{n/a}} <!-- Multiplayer Client -->
| 42 <!-- JIP MP Client -->


[[Category: Scripting Topics]]
|- style="background-color: #EEE"
| ''Scenario going''
| {{n/a}}
| <!-- Single Player -->
| <!-- Dedicated Server -->
| <!-- Hosted Server -->
| <!-- Multiplayer Client -->
| <!-- JIP MP Client -->


|-
| [[Event Scripts#exit.sqf|exit.sqf]]
|
| <!-- Single Player -->
| <!-- Dedicated Server -->
| <!-- Hosted Server -->
| <!-- Multiplayer Client -->
| <!-- JIP MP Client -->


[[Category:Sandbox]]
|-
| [[Event Scripts#exit.sqs|exit.sqs]]
|
| <!-- Single Player -->
| <!-- Dedicated Server -->
| <!-- Hosted Server -->
| <!-- Multiplayer Client -->
| <!-- JIP MP Client -->
 
|-
| {{Link|Arma 3: Mission Event Handlers#Ended|"Ended" Mission Event Handler}}
|
| <!-- Single Player -->
| <!-- Dedicated Server -->
| <!-- Hosted Server -->
| <!-- Multiplayer Client -->
| <!-- JIP MP Client -->
 
|-
|  {{Link|Arma 3: Mission Event Handlers#MPEnded|"MPEnded" Mission Event Handler}}
|
| <!-- Single Player -->
| <!-- Dedicated Server -->
| <!-- Hosted Server -->
| <!-- Multiplayer Client -->
| <!-- JIP MP Client -->
 
|}
 
 
== See Also ==
 
* [[Arma 3: Functions Library]]<!--
* [[Arma 2: Functions Library]] -->
* [[Arma 3: Remote Execution]], [[BIS_fnc_MP]] <!-- keep? -->
* [[Eden Editor: Configuring Attributes|Eden Editor: Configuring Attributes]]
* [[Event Scripts]]
* [[Scheduler]]

Latest revision as of 01:29, 18 March 2024

ⓘ
Order of Initialisation (use column sorting for respective machine order)
Task Exec Environment Machine
Single Player Dedicated Server Hosted Server Multiplayer Client JIP MP Client
Functions with recompile attribute are recompiled N/A 1 1 1 1 1
Functions with preInit attribute are called Unscheduled 2 2 2 2 2
Object Init Event Handlers are called Unscheduled 3 3 3 3 Unchecked
Expressions of Eden Editor entity attributes are called[1] Unscheduled 4 4 4 Unchecked Unchecked
Object initialisation fields are called Unscheduled 5 5 5 4 3
init.sqs is executed 6
init.sqf is executed Scheduled[2]
Expressions of Eden Editor scenario attributes are called[3] Unscheduled
Persistent functions are called
Modules are initialised Unchecked
initServer.sqf is executed Scheduled N/A N/A
initPlayerLocal.sqf is executed Scheduled N/A
initPlayerServer.sqf is executed on the server Scheduled N/A ??
Functions with postInit attribute are called Scheduled[2]
init.sqs is executed Scheduled
init.sqf is executed Scheduled
remoteExec's JIP queue N/A N/A N/A N/A N/A 42
Scenario going N/A
exit.sqf
exit.sqs
"Ended" Mission Event Handler
"MPEnded" Mission Event Handler


See Also

  1. ↑ isPlayer _entity does not return true immediately. Once the entity has become a player, it is transferred to the client.
  2. ↑ 2.0 2.1 Note in single player that while the environment is Scheduled (canSuspend returns true), the engine seems to wait until the script is done executing, essentially behaving similarly to an Unscheduled environment - infinite loops will freeze the game, uiSleep may pause the game for up to ~20s (postInit), waitUntil can cause catastrophic issues, etc.
  3. ↑ player is not available immediately.
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