SubsystemBlueprintLibrary.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Templates/SubclassOf.h"
#include "Kismet/BlueprintFunctionLibrary.h"
#include "Subsystems/EngineSubsystem.h"
#include "Subsystems/GameInstanceSubsystem.h"
#include "Subsystems/LocalPlayerSubsystem.h"
#include "Subsystems/AudioEngineSubsystem.h"
 
#include "SubsystemBlueprintLibrary.generated.h"
 
UCLASS(MinimalAPI)
class USubsystemBlueprintLibrary : public UBlueprintFunctionLibrary
{
    GENERATED_BODY()
 
public:
 
    UFUNCTION(BlueprintPure, Category = "Engine Subsystems", meta = (BlueprintInternalUseOnly = "true"))
    static ENGINE_API UEngineSubsystem* GetEngineSubsystem(TSubclassOf<UEngineSubsystem> Class);
 
    UFUNCTION(BlueprintPure, Category = "GameInstance Subsystems", meta = (WorldContext = "ContextObject", BlueprintInternalUseOnly = "true"))
    static ENGINE_API UGameInstanceSubsystem* GetGameInstanceSubsystem(UObject* ContextObject, TSubclassOf<UGameInstanceSubsystem> Class);
 
    UFUNCTION(BlueprintPure, Category = "LocalPlayer Subsystems", meta = (WorldContext = "ContextObject", BlueprintInternalUseOnly = "true"))
    static ENGINE_API ULocalPlayerSubsystem* GetLocalPlayerSubsystem(UObject* ContextObject, TSubclassOf<ULocalPlayerSubsystem> Class);
 
    UFUNCTION(BlueprintPure, Category = "GameInstance Subsystems", meta = (WorldContext = "ContextObject", BlueprintInternalUseOnly = "true"))
    static ENGINE_API UWorldSubsystem* GetWorldSubsystem(UObject* ContextObject, TSubclassOf<UWorldSubsystem> Class);
 
    UFUNCTION(BlueprintPure, Category = "AudioEngine Subsystems", meta = (WorldContext = "ContextObject", BlueprintInternalUseOnly = "true"))
    static ENGINE_API UAudioEngineSubsystem* GetAudioEngineSubsystem(UObject* ContextObject, TSubclassOf<UAudioEngineSubsystem> Class);
 
    UFUNCTION(BlueprintPure, Category = "LocalPlayer Subsystems", meta = (BlueprintInternalUseOnly = "true"))
    static ENGINE_API ULocalPlayerSubsystem* GetLocalPlayerSubSystemFromPlayerController(APlayerController* PlayerController, TSubclassOf<ULocalPlayerSubsystem> Class);
 
private:
    static UWorld* GetWorldFrom(UObject* ContextObject);
};