Method RefreshViewNetworkSmoothing

Source/ALS/Private/AlsCharacter.cpp:1269–1328

}

void AAlsCharacter::RefreshViewNetworkSmoothing(const float DeltaTime)
{
	// Based on UCharacterMovementComponent::SmoothClientPosition_Interpolate()
	// and UCharacterMovementComponent::SmoothClientPosition_UpdateVisuals().

	auto& NetworkSmoothing{ViewState.NetworkSmoothing};

	if (!NetworkSmoothing.bEnabled ||
	    NetworkSmoothing.ClientTime >= NetworkSmoothing.ServerTime ||
	    NetworkSmoothing.Duration <= UE_SMALL_NUMBER ||
	    (MovementBase.bHasRelativeRotation && IsNetMode(NM_ListenServer)))
	{
		// Can't use network smoothing on the listen server when the character
		// is standing on a rotating object, as it causes constant rotation jitter.

		NetworkSmoothing.InitialRotation = MovementBase.bHasRelativeRotation
			                                   ? (MovementBase.Rotation * ReplicatedViewRotation.Quaternion()).Rotator()
			                                   : ReplicatedViewRotation;

		NetworkSmoothing.TargetRotation = NetworkSmoothing.InitialRotation;
		NetworkSmoothing.FinalRotation = NetworkSmoothing.InitialRotation;

		return;
	}

	if (MovementBase.bHasRelativeRotation)
	{
		// Offset the rotations to keep them in the movement base space.

		NetworkSmoothing.InitialRotation.Pitch += MovementBase.DeltaRotation.Pitch;
		NetworkSmoothing.InitialRotation.Yaw += MovementBase.DeltaRotation.Yaw;
		NetworkSmoothing.InitialRotation.Normalize();

		NetworkSmoothing.TargetRotation.Pitch += MovementBase.DeltaRotation.Pitch;
		NetworkSmoothing.TargetRotation.Yaw += MovementBase.DeltaRotation.Yaw;
		NetworkSmoothing.TargetRotation.Normalize();

		NetworkSmoothing.FinalRotation.Pitch += MovementBase.DeltaRotation.Pitch;
		NetworkSmoothing.FinalRotation.Yaw += MovementBase.DeltaRotation.Yaw;
		NetworkSmoothing.FinalRotation.Normalize();
	}

	NetworkSmoothing.ClientTime += DeltaTime;

	const auto InterpolationAmount{
		UAlsMath::Clamp01(1.0f - (NetworkSmoothing.ServerTime - NetworkSmoothing.ClientTime) / NetworkSmoothing.Duration)
	};

	if (!FAnimWeight::IsFullWeight(InterpolationAmount))
	{
		NetworkSmoothing.FinalRotation = UAlsRotation::LerpRotation(NetworkSmoothing.InitialRotation,
		                                                            NetworkSmoothing.TargetRotation,
		                                                            InterpolationAmount);
	}
	else
	{
		NetworkSmoothing.ClientTime = NetworkSmoothing.ServerTime;
		NetworkSmoothing.FinalRotation = NetworkSmoothing.TargetRotation;