ASC

.h

	virtual class UAbilitySystemComponent* GetAbilitySystemComponent() const override;
    
   	UPROPERTY(EditAnywhere, Category = GAS)
	TObjectPtr<class UAbilitySystemComponent> ASC;

 

.cpp

	ASC = CreateDefaultSubobject<UAbilitySystemComponent>(TEXT("ASC"));

	void AABGASFountain::PostInitializeComponents()
	{
		Super::PostInitializeComponents();
	
		ASC->InitAbilityActorInfo(this, this);
		FGameplayAbilitySpec RotateSkillSpec(UABGA_Rotate::StaticClass());
		ASC->GiveAbility(RotateSkillSpec);
	}


	ABGAS_LOG(LogABGAS, Log, TEXT("Active!"));
	ASC->TryActivateAbility(RotateSpec->Handle);

 

초기화하고

ASC에 AB를 등록할 때는 ASC->GiveAbility(스펙)으로

 

ASC에 등록된 어빌리티를 실행할때는 TryActiveAbility(스펙의 핸들)로

 

 

---

INPUT

 

PlayerState <ㅡ> PlayerCharacter

 

플레이어 캐릭터(폰)에서 빙의될때 플레이어 스테이트의 ASC를 폰으로 넘겨줌

void AABGASCharacterPlayer::PossessedBy(AController* NewController)
{
	Super::PossessedBy(NewController);

	AABGAS_PlayerState* GASPS = GetPlayerState<AABGAS_PlayerState>();
	if (GASPS)
	{
		ASC = GASPS->GetAbilitySystemComponent();
		ASC->InitAbilityActorInfo(GASPS, this);

		int32 InputId = 0;

		for (const auto& StartAbility : StartAbilities)
		{
			FGameplayAbilitySpec StartSpec(StartAbility);
			StartSpec.InputID = InputId++;
			ASC->GiveAbility(StartSpec);

			SetUpGASInputComponent();
		}
	}
}

 

여기서 InputId는 플레이어 입력을 위해 사용됨

void AABGASCharacterPlayer::SetUpGASInputComponent()
{
	if (IsValid(ASC) && IsValid(InputComponent))
	{
		UEnhancedInputComponent* EnhancedInputComponent = CastChecked<UEnhancedInputComponent>(InputComponent);

		EnhancedInputComponent->BindAction(JumpAction, ETriggerEvent::Triggered, this, &AABGASCharacterPlayer::GASInputPressed, 0);
		EnhancedInputComponent->BindAction(JumpAction, ETriggerEvent::Completed, this, &AABGASCharacterPlayer::GASInputReleased, 0);
	}
}

void AABGASCharacterPlayer::GASInputPressed(int32 InputId)
{
	FGameplayAbilitySpec* Spec = ASC->FindAbilitySpecFromInputID(InputId);
	if (Spec)
	{
		Spec->InputPressed = true;
		if (Spec->IsActive())
		{
			ASC->AbilitySpecInputPressed(*Spec);
		}
		else
		{
			ASC->TryActivateAbility(Spec->Handle);
		}
	}

}

제일 끝 인수 0은 InputId에 0을 넘겨줌

Spec의 인풋아이디를 체크해서 어빌리티를 찾고 그 어빌리티를 활성화!

 

개선

void AABGASCharacterPlayer::PossessedBy(AController* NewController)
{
	Super::PossessedBy(NewController);

	AABGAS_PlayerState* GASPS = GetPlayerState<AABGAS_PlayerState>();
	if (GASPS)
	{
		ASC = GASPS->GetAbilitySystemComponent();
		ASC->InitAbilityActorInfo(GASPS, this);

		for (const auto& StartAbility : StartAbilities)
		{
			FGameplayAbilitySpec StartSpec(StartAbility);
			ASC->GiveAbility(StartSpec);
		}

		for (const auto& StartInputAbility : StartInputAbilities)
		{
			FGameplayAbilitySpec StartSpec(StartInputAbility.Value);
			StartSpec.InputID = StartInputAbility.Key;
			ASC->GiveAbility(StartSpec);
		}

		SetUpGASInputComponent();

		//디버그용
		APlayerController* PlayerController = CastChecked<APlayerController>(NewController);
		PlayerController->ConsoleCommand(TEXT("showdebug abilitysystem"));
	}
}