64 lines
1.7 KiB
C
64 lines
1.7 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 "LTweenerMaterialScalar.generated.h"
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UCLASS(NotBlueprintType)
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class LTWEEN_API ULTweenerMaterialScalar:public ULTweener
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{
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GENERATED_BODY()
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public:
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float startValue = 0.0f;//b
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float changeValue = 0.0f;//c
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int32 parameterIndex;
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float endValue = 0.0f;
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FLTweenMaterialScalarGetterFunction getter;
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FLTweenMaterialScalarSetterFunction setter;
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float originStartValue = 0.0f;
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void SetInitialValue(const FLTweenMaterialScalarGetterFunction& newGetter, const FLTweenMaterialScalarSetterFunction& newSetter, float 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->endValue = newEndValue;
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this->parameterIndex = newParameterIndex;
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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->changeValue = endValue - startValue;
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this->originStartValue = this->changeValue;
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}
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else
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{
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UE_LOG(LTween, Error, TEXT("[ULTweenerMaterialScalar/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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auto value = tweenFunc.Execute(changeValue, startValue, currentTime, duration);
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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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startValue = endValue;
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endValue += changeValue;
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}
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virtual void SetOriginValueForRestart() override
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{
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startValue = originStartValue;
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endValue = originStartValue + changeValue;
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}
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};
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