76 lines
2.1 KiB
C
76 lines
2.1 KiB
C
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// Copyright 2019-Present LexLiu. All Rights Reserved.
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#pragma once
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#include "LTweener.h"
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#include "LTween.h"
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#include "LTweenerMaterialVector.generated.h"
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UCLASS(NotBlueprintType)
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class LTWEEN_API ULTweenerMaterialVector :public ULTweener
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{
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GENERATED_BODY()
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public:
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float startFloat = 0.0f;//b
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float changeFloat = 1.0f;//c
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FLinearColor startValue;
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FLinearColor endValue;
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int32 parameterIndex;
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FLTweenMaterialVectorGetterFunction getter;
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FLTweenMaterialVectorSetterFunction setter;
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FLinearColor originStartValue;
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void SetInitialValue(const FLTweenMaterialVectorGetterFunction& newGetter, const FLTweenMaterialVectorSetterFunction& newSetter, const FLinearColor& newEndValue, float newDuration, int32 newParameterIndex)
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{
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this->duration = newDuration;
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this->getter = newGetter;
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this->setter = newSetter;
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this->parameterIndex = newParameterIndex;
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this->endValue = newEndValue;
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this->startFloat = 0.0f;
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this->changeFloat = 1.0f;
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}
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protected:
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virtual void OnStartGetValue() override
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{
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if (getter.IsBound())
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{
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if (getter.Execute(startValue))
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{
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this->originStartValue = startValue;
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}
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else
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{
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UE_LOG(LTween, Error, TEXT("[ULTweenerMaterialVector/OnStartGetValue]Get paramter value error!"));
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}
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}
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}
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virtual void TweenAndApplyValue(float currentTime) override
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{
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float lerpValue = tweenFunc.Execute(changeFloat, startFloat, currentTime, duration);
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FLinearColor value;
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value.R = FMath::Lerp(startValue.R, endValue.R, lerpValue);
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value.G = FMath::Lerp(startValue.G, endValue.G, lerpValue);
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value.B = FMath::Lerp(startValue.B, endValue.B, lerpValue);
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value.A = FMath::Lerp(startValue.A, endValue.A, lerpValue);
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if (setter.IsBound())
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if (setter.Execute(parameterIndex, value) == false)
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{
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UE_LOG(LTween, Warning, TEXT("[ULTweenerMaterialScalar/TweenAndApplyValue]Set paramter value error!"));
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}
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}
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virtual void SetValueForIncremental() override
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{
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auto diffValue = endValue - startValue;
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startValue = endValue;
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endValue += diffValue;
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}
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virtual void SetOriginValueForRestart() override
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{
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auto diffValue = endValue - startValue;
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startValue = originStartValue;
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endValue = originStartValue + diffValue;
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}
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};
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