Initialisation Order
Introduction
Whenever a mission is launched (or joined in multiplayer) certain tasks are performed to ensure the mission's various components are initialized correctly and that everyone is synced in multiplayer games (particularly JIP players). Initialization order refers to the order in which those tasks are executed and it's important to take into account when setting up the start of a mission.
Event Scripts are a key part of a mission's initialization order and will be utilized often when working with SQF.
Arma 3
Be aware that a mission's initialization order is different depending on whether it's being ran in a single player or multiplayer environment.
Single Player
- Functions with recompile attribute are recompiled
- Functions with preInit attribute are called
- Object Init Event Handlers are called
- Object initialization fields are called
- init.sqs is executed
- init.sqf is executed
- Modules are initialized
- Functions with postInit attribute are called
- "BIS_fnc_init" variable is set to true
Multiplayer
The following is relevant to every machine including the server itself and headless clients. If the server is non-dedicated then it should be considered both a server and client.
| Task | Applies To | JIP | Related To |
|---|---|---|---|
| Functions with recompile attribute are recompiled | All | ✔ | Functions Library (Arma 3) |
| Functions with preInit attribute are called | All | Functions Library (Arma 3) | |
| Object Init Event Handlers are called | All | ||
| Object initialization fields are called | All | ||
| Persistent multiplayer functions are called | Client | ✔ | BIS_fnc_MP |
| Modules are initialized | All | ||
| initServer.sqf is executed | Server | Event Scripts | |
| initPlayerLocal.sqf is executed | Client | ✔ | Event Scripts |
| initPlayerServer.sqf is executed on the server | Client | ✔ | Event Scripts |
| Functions with postInit attribute are called | All | Functions Library (Arma 3) | |
| "BIS_fnc_init" variable is set to true | All | ✔ | |
| init.sqs is executed | All | ✔ | Event Scripts |
| init.sqf is executed | All | ✔ | Event Scripts |