(Unreal : Basic) 23. The Sine Function

Posted by : Unreal at Apr 29, 2021

Category : Unreal

void AFloater::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);

	if (bShouldFloat)
	{
		FVector NewLocation = GetActorLocation();
		NewLocation.Z = NewLocation.Z + FMath::Sin(RunningTime);


		SetActorLocation(NewLocation);
		RunningTime += DeltaTime;
	}
}

Floater가 위/아래로 움직인다.

좀 더 테스트하기 쉽게만들기

void AFloater::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);

	if (bShouldFloat)
	{
		FVector NewLocation = GetActorLocation();
		NewLocation.Z = BaseZLocation + Amplitude * FMath::Sin(RunningTime);


		SetActorLocation(NewLocation);
		RunningTime += DeltaTime;
	}
}

	// Amplitude
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Floater Variables")
	float A{};

	// Period
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Floater Variables")
	float B{};

	// Phase Shift
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Floater Variables")
	float C{};

	// Vertical Shift
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Floater Variables")
	float D{};

void AFloater::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);

	if (bShouldFloat)
	{
		FVector NewLocation = GetActorLocation();
		NewLocation.Z = BaseZLocation + A * Amplitude * FMath::Sin(B * RunningTime - C) + D;

		SetActorLocation(NewLocation);
		RunningTime += DeltaTime;
	}
}