Intro #

• Subsystem is handy and useful instance with various lifecycle.
• Every Subsystems declared as class will be instanced and called Inintialize() and Deinitialize() in proper time.
• Thanks to Subsystems, GameInstance don’t have to be over-responsible. (and other massive advantages)

Subsystem variety #

• UEngineSubsystem

  • Lifetime : StartUp() ~ ShutDown()
  • Reference : GEngine->GetEngineSubsystem<T>();

• UEditorSubsystem

  • Lifetime : StartUp() ~ ShutDown()
  • Reference : GEditor->GetEditorSubsystem<T>();

• UGameInstanceSubsystem

  • Lifetime : Same with GameInstance
  • Reference : [GameInstance]->GetSubsystem<T>();

• ULocalPlayerSubsystem

  • Lifetime : Same with LocalPlayer
  • Reference : [LocalPlayer]->GetSubsystem<T>();

Online Subsystem? #