AutoDestroySubsystem.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Subsystems/WorldSubsystem.h"
#include "Stats/Stats.h"
#include "Engine/EngineTypes.h"
 
#include "AutoDestroySubsystem.generated.h"
 
class AActor;
struct FLatentActionManager;
 
UCLASS()
class UAutoDestroySubsystem : public UTickableWorldSubsystem
{
    GENERATED_BODY()
 
public:
 
    bool RegisterActor(AActor* ActorToRegister);
 
    bool UnregisterActor(AActor* ActorToRemove);
 
protected:
 
    //~FTickableGameObject interface
 
    ETickableTickType GetTickableTickType() const override;
 
    void Tick(float DeltaTime) override;
 
    TStatId GetStatId() const override { RETURN_QUICK_DECLARE_CYCLE_STAT(UAutoDestroySubsystem, STATGROUP_Tickables); }
 
    //~End of FTickableGameObject interface
 
 
    //~USubsystem interface
    void Deinitialize() override;
    //~End of USubsystem interface
 
private:
    
    UFUNCTION()
    void OnActorEndPlay(AActor* Actor, EEndPlayReason::Type EndPlayReason);
 
    static bool CheckLatentActionsOnActor(FLatentActionManager& LatentActionManager, AActor* ActorToCheck, float WorldDeltaTime);
 
    static bool ActorComponentsAreReadyForDestroy(AActor* const ActorToCheck);
 
    UPROPERTY()
    TArray<TObjectPtr<AActor>> ActorsToPoll;
};