UE4 Widget Animation C++

글을 쓰는 목적

 

UE4 widget animation 사용을 자주 하지 않아 기억하기 위해 이 글을 쓴다. 

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작업 환경

 

UE4 : UE4.26

 

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Widget Animation

Widget에 Widget animation 바인딩

 

Widget Animationㅇ르 C++ 코드와 UserWidget 바인딩을 하기 위해서는  UUserWidget class를 상속받는 클래스에 UPROEPRTY 선언시 meta=(BindWidgetAnim), Transient와 같이 UWidgetAnimation 선언

UCLASS()
class UTestWidget : public UUserWidget
{
	GENERATE_BODY()

public:
	UPROPERTY(BlueprintReadOnly, Transient, Category = "GsUI", meta = (BindWidgetAnim))
		class UWidgetAnimation* TestWidgetAnimation;
};

 

Widget animation 재생

 

UUserWidget class에 PlayAnimation을 통해 WidgetAnimation 재생, 인자 값은 WidgetAnimation

void UTestWidget::TestPlayAnimation()
{
	PlayAnimation(TestWidgetAnimation);
}

 

Widget animation 멈춤 

 

UUserWidget class에 StopAnimation을 통해 WidgetAnimation 멈춤, 인자 값은 WidgetAnimation

void UTestWidget::TestStopAnimation()
{
	StopAnimation(TestWidgetAnimation);
}

 

Widget animation 종료시 Event 실행

 

FWidgetAnimationDynamicEvent 선언 뒤 BindToAnimationFinished에 Delegate 등록 

UCLASS()
class UTestWidget : public UUserWidget
{
	GENERATE_BODY()

public:
	FWidgetAnimationDynamicEvent TestWidgetAnimationEvent;
};

void UTestWidget::PlayTestWidgetAnimation()
{
	TestWidgetAnimationEvent.Clear();
	TestWidgetAnimationEvent.BindUFunction(this, FName(FString(TEXT("OnPlayTestAnimation"))));
	BindToAnimationFinished(TestWidgetAnimation, TestWidgetAnimationEvent);
    
    PlayAnimation(TestWidgetAnimation);
}

 

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참고

 

https://hombody.tistory.com/328

[Unreal C++] - 위젯 애니메이션(Widget Animation)

 

 

https://mingyu0403.tistory.com/281

[Unreal Error] 프로퍼티가 BindWidgetAnim을 사용하지만, 임시가 아닙니다!