Tickable world subsystem or custom class for bullet manager?

Development Programming & Scripting C++
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1

Has anyone tried using a tickable world subsystem for a bullet manager instead of just a custom class? I’ve finally got my projectiles completed and now I just need a way to tick them without ticking them per-object. Just wondering if anyone has done some performance/usability testing here already before I start writing this. I’m thinking the tickable world subsystem would be most ideal here.

2

We tick them via an actor in the world, but a subsystem would work fine. Our system was designed before Subsystems existed.

3

Awesome, thank you for your feedback. Will goahead with attempting it using a tickable world subsystem. Seams like this should work out pretty great. Currently I can have 1,000 projectiles (with niagara effects as visuals) with them all individually ticking, but once moved to a manager I should be able to get quite a bit more.

4

Worked perfectly. Edited out my game specific logic and provided a skeleton below for a simple tickable world subsystem.

MyTickableSubsystem.h

#pragma once

#include "CoreMinimal.h"
#include "Subsystems/WorldSubsystem.h"
#include "MyTickableSubsystem.generated.h"

UCLASS()
class MYTICKABLESUBSYSTEM_API UMyTickableSubsystem : public UTickableWorldSubsystem
{
	GENERATED_BODY()

public:
    virtual void Initialize( FSubsystemCollectionBase& Collection ) override;
    virtual void Deinitialize() override;
    virtual void Tick( float DeltaTime ) override;
	virtual TStatId GetStatId() const override;
};

MyTickableSubsystem.cpp

#include "MyTickableSubsystem/Public/MyTickableSubsystem.h"

void UMyTickableSubsystem::Initialize( FSubsystemCollectionBase& Collection )
{
	Super::Initialize( Collection );
}

void UMyTickableSubsystem::Deinitialize()
{
	Super::Deinitialize();
}

void UMyTickableSubsystem::Tick( float DeltaTime )
{
	// Do tick behavior here
}

TStatId UMyTickableSubsystem::GetStatId() const
{
	RETURN_QUICK_DECLARE_CYCLE_STAT( UMyTickableSubsystem, STATGROUP_Tickables );
}