Blueprint Subsystem Plugin Description

There are subsystems in Unreal that can be instantiated automatically.

However, the subsystem can only be inherited and implemented in C++. The purpose of this plugin is to create and use the subsystem directly in the blueprint.

Official subsystem description reference:

Programming Subsystems in Unreal Engine | Unreal Engine 5.1 Documentation

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Plug-in operation instructions:

Right-click to directly create the corresponding blueprint.

When using, directly get the blueprint name_C node to get the corresponding instance object.

For example, the blueprint name is BP_DTGameInstanceSubsystem

The way to obtain it is as follows:

It is recommended to restart the editor after the window instantiates the blueprint, otherwise there may be multiple repeated Get options.

After it can be used, it needs to be enabled in the settings, so that it can be run after packaging.

All blueprint subsystems created must be added to it to be active.

Detailed description:

CORRESPONDING RELATIONSHIP

	DT Subsystem	Unreal Engine
Game Instance	DT Game Instance Subsystem	UGameInstanceSubsystem
Local Player	DT Local Player Subsystem	ULocalPlayerSubsystem
World	DT World Subsystem	UWorldSubsystem

After the blueprint is created, the plug-in will automatically generate some callback nodes, which are helpful for logic processing. The following is the description of the nodes:

Common Node Description：

On Initialize：initialization of instances of the system

On Deinitialize：deinitialization of instances of the system

On Tick： Event called every frame, if ticking is enabled 

World Subsystem Exclusive Node Description：

On Post Initialize：Called once all UWorldSubsystems have been initialized

On World Begin Play：Called when world is ready to start gameplay before the game mode transitions to the correct state and call BeginPlay on all actors

On World Components Updated：Called after world components (e.g. line batcher and all level components) have been updated

On Update Streaming State：Updates sub-system required streaming levels (called by world’s UpdateStreamingState function)

Plug-in download:

https://www.unrealengine.com/marketplace/slug/0dc13dcb93134822920eac517d6258ab