51 lines
1.3 KiB
C++
51 lines
1.3 KiB
C++
// 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 "LTweenerFloat.generated.h"
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UCLASS(NotBlueprintType)
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class LTWEEN_API ULTweenerFloat: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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float endValue = 0.0f;
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FLTweenFloatGetterFunction getter;
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FLTweenFloatSetterFunction setter;
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float originStartValue = 0.0f;
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void SetInitialValue(const FLTweenFloatGetterFunction& newGetter, const FLTweenFloatSetterFunction& newSetter, float newEndValue, float newDuration)
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{
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this->duration = newDuration;
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this->endValue = newEndValue;
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this->getter = newGetter;
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this->setter = newSetter;
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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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this->startValue = getter.Execute();
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this->originStartValue = this->startValue;
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this->changeValue = endValue - startValue;
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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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setter.ExecuteIfBound(value);
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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 = startValue + changeValue;
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}
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}; |