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Moving a Component's child based on a curve
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// Fill out your copyright notice in the Description page of Project Settings. | |
#include "UCurveComponent.h" | |
// Sets default values for this component's properties | |
UUCurveComponent::UUCurveComponent() | |
{ | |
// Set this component to be initialized when the game starts, and to be ticked every frame. You can turn these features | |
// off to improve performance if you don't need them. | |
PrimaryComponentTick.bCanEverTick = true; | |
// ... | |
} | |
// Called when the game starts | |
void UUCurveComponent::BeginPlay() | |
{ | |
Super::BeginPlay(); | |
ElapsedTime = 0; | |
CurveMaxTime = 10; | |
float min; | |
CurveVector->GetTimeRange(min, CurveMaxTime); | |
} | |
// Called every frame | |
void UUCurveComponent::TickComponent(float DeltaTime, ELevelTick TickType, FActorComponentTickFunction* ThisTickFunction) | |
{ | |
Super::TickComponent(DeltaTime, TickType, ThisTickFunction); | |
ElapsedTime += DeltaTime * Speed; | |
if (ElapsedTime > CurveMaxTime) | |
{ | |
ElapsedTime -= CurveMaxTime; | |
} | |
FVector Position = CurveVector->GetVectorValue(ElapsedTime); | |
SetRelativeLocation(Position); | |
} | |
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// Fill out your copyright notice in the Description page of Project Settings. | |
#pragma once | |
#include "CoreMinimal.h" | |
#include "Components/SceneComponent.h" | |
#include "Runtime/Engine/Classes/Curves/CurveBase.h" | |
#include "Runtime/Engine/Classes/Curves/CurveVector.h" | |
#include "UCurveComponent.generated.h" | |
UCLASS( ClassGroup=(Custom), meta=(BlueprintSpawnableComponent) ) | |
class EXCERCISE_TASK1_2_API UUCurveComponent : public USceneComponent | |
{ | |
GENERATED_BODY() | |
public: | |
// Sets default values for this component's properties | |
UUCurveComponent(); | |
virtual void TickComponent(float DeltaTime, ELevelTick TickType, FActorComponentTickFunction* ThisTickFunction) override; | |
UPROPERTY(EditAnywhere) | |
UCurveVector* CurveVector; | |
UPROPERTY(EditAnywhere) | |
float Speed; | |
protected: | |
// Called when the game starts | |
virtual void BeginPlay() override; | |
private: | |
float ElapsedTime; | |
float CurveMaxTime; | |
}; |
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