U++ learning notes floating actor

FloatingActor.h：

// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

#include "CoreMinimal.h"
#include "GameFramework/Actor.h"
#include "FloatingActor.generated.h"

UCLASS()
class FLOATINGCUBE_API AFloatingActor : public AActor
{
	GENERATED_BODY()
	
public:	
	// Sets default values for this actor's properties
	AFloatingActor();

protected:
	// Called when the game starts or when spawned
	virtual void BeginPlay() override;

public:	
	// Called every frame
	virtual void Tick(float DeltaTime) override;

	UPROPERTY(VisibleAnywhere)
		UStaticMeshComponent* VisualMesh;
};

FloatingActor.cpp：

// Fill out your copyright notice in the Description page of Project Settings.


#include "FloatingActor.h"

// Sets default values
AFloatingActor::AFloatingActor()
{
 	// Set this actor to call Tick() every frame.  You can turn this off to improve performance if you don't need it.
	PrimaryActorTick.bCanEverTick = true;
	VisualMesh = CreateDefaultSubobject<UStaticMeshComponent>(TEXT("Mesh"));
	VisualMesh->SetupAttachment(RootComponent);
	static ConstructorHelpers::FObjectFinder<UStaticMesh> CubeVisualAsset(TEXT("/Game/StarterContent/Shapes/Shape_Cube.Shape_Cube"));
	if (CubeVisualAsset.Succeeded()) {
		VisualMesh->SetStaticMesh(CubeVisualAsset.Object);
		VisualMesh->SetRelativeLocation(FVector(0.0f, 0.0f, 0.0f));
	}
}

// Called when the game starts or when spawned
void AFloatingActor::BeginPlay()
{
	Super::BeginPlay();
	
}

// Called every frame
void AFloatingActor::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);
	FVector NewLocation = this->GetActorLocation();
	FRotator NewRotation = this->GetActorRotation();
	float RunningTime = GetGameTimeSinceCreation();// Get total game time since creation 
	float DeltaHeight = (FMath::Sin(RunningTime + DeltaTime) - FMath::Sin(RunningTime));
	NewLocation.Z += DeltaHeight * 20.0f;
	float DeltaRotation = DeltaTime * 20.f;
	NewRotation.Yaw += DeltaRotation;
	SetActorLocationAndRotation(NewLocation, NewRotation);
}

result ：