UnrealEngineUWP/Engine/Source/Runtime/AudioExtensions/Private/IAudioParameterTransmitter.cpp

// Copyright Epic Games, Inc. All Rights Reserved.
#include "IAudioParameterTransmitter.h"
#include "UObject/Object.h"


namespace Audio
{
	const FName IParameterTransmitter::RouterName = "ParameterTransmitter";

	TArray<const TObjectPtr<UObject>*> ILegacyParameterTransmitter::GetReferencedObjects() const
	{
		return { };
	}

	FParameterTransmitterBase::FParameterTransmitterBase(TArray<FAudioParameter>&& InDefaultParams)
		: AudioParameters(MoveTemp(InDefaultParams))
		, bIsVirtualized(false)
	{
	}

	bool FParameterTransmitterBase::GetParameter(FName InName, FAudioParameter& OutValue) const
	{
		if (const FAudioParameter* Param = FAudioParameter::FindParam(AudioParameters, InName))
		{
			OutValue = *Param;
			return true;
		}

		return false;
	}

	void FParameterTransmitterBase::ResetParameters() 
	{
		AudioParameters.Reset();
	}
	
	bool FParameterTransmitterBase::Reset()
	{
		ResetParameters();
		return true;
	}

	const TArray<FAudioParameter>& FParameterTransmitterBase::GetParameters() const
	{
		return AudioParameters;
	}

	bool FParameterTransmitterBase::SetParameters(TArray<FAudioParameter>&& InParameters)
	{
		FAudioParameter::Merge(MoveTemp(InParameters), AudioParameters);
		return true;
	}

	void FParameterTransmitterBase::OnVirtualizeActiveSound()
	{ 
		bIsVirtualized = true;
		ResetParameters();
	}

	 void FParameterTransmitterBase::OnRealizeVirtualizedActiveSound(TArray<FAudioParameter>&& InParameters)
	 { 
		 bIsVirtualized = false;
		 SetParameters(MoveTemp(InParameters));
	 }
} // namespace Audio