Upgrade to 5.8

Plugins/LTween/Source/LTween/Private/Tweener/LTweenerVector4.h

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+// Copyright 2019-Present LexLiu. All Rights Reserved.
+
+#pragma once
+#include "LTweener.h"
+#include "LTweenerVector4.generated.h"
+
+UCLASS(NotBlueprintType)
+class LTWEEN_API ULTweenerVector4 :public ULTweener
+{
+	GENERATED_BODY()
+public:
+	float startFloat = 0.0f;//b
+	float changeFloat = 1.0f;//c
+	FVector4 startValue;
+	FVector4 endValue;
+
+	FLTweenVector4GetterFunction getter;
+	FLTweenVector4SetterFunction setter;
+
+	FVector4 originStartValue;
+
+	void SetInitialValue(const FLTweenVector4GetterFunction& newGetter, const FLTweenVector4SetterFunction& newSetter, const FVector4& newEndValue, float newDuration)
+	{
+		this->duration = newDuration;
+		this->getter = newGetter;
+		this->setter = newSetter;
+		this->endValue = newEndValue;
+
+		this->startFloat = 0.0f;
+		this->changeFloat = 1.0f;
+	}
+protected:
+	virtual void OnStartGetValue() override
+	{
+		if (getter.IsBound())
+			this->startValue = getter.Execute();
+		this->originStartValue = this->startValue;
+	}
+	virtual void TweenAndApplyValue(float currentTime) override
+	{
+		float lerpValue = tweenFunc.Execute(changeFloat, startFloat, currentTime, duration);
+		auto value = FMath::Lerp(startValue, endValue, lerpValue);
+		setter.ExecuteIfBound(value);
+	}
+	virtual void SetValueForIncremental() override
+	{
+		auto diffValue = endValue - startValue;
+		startValue = endValue;
+		endValue += diffValue;
+	}
+	virtual void SetOriginValueForRestart() override
+	{
+		auto diffValue = endValue - startValue;
+		startValue = originStartValue;
+		endValue = originStartValue + diffValue;
+	}
+};