SoundNodeDoppler.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "UObject/ObjectMacros.h"
#include "AudioDevice.h"
#include "Sound/SoundNode.h"
#include "SoundNodeDoppler.generated.h"
 
struct FActiveSound;
struct FSoundParseParameters;
 
UCLASS(hidecategories=Object, editinlinenew, meta=( DisplayName="Doppler" ))
class USoundNodeDoppler : public USoundNode
{
    GENERATED_UCLASS_BODY()
 
    /* How much to scale the doppler shift (1.0 is normal). */
    UPROPERTY(EditAnywhere, Category=Doppler )
    float DopplerIntensity;
 
    UPROPERTY(EditAnywhere, Category=Doppler)
    bool bUseSmoothing;
 
    UPROPERTY(EditAnywhere, Category = Doppler, meta = (EditCondition = "bUseSmoothing"))
    float SmoothingInterpSpeed;
 
 
public:
    //~ Begin USoundNode Interface. 
    virtual void ParseNodes( FAudioDevice* AudioDevice, const UPTRINT NodeWaveInstanceHash, FActiveSound& ActiveSound, const FSoundParseParameters& ParseParams, TArray<FWaveInstance*>& WaveInstances ) override;
    //~ End USoundNode Interface. 
 
protected:
    // @todo document
    float GetDopplerPitchMultiplier(float& CurrentPitchScale, bool bSmooth, FListener const& InListener, const FVector Location, const FVector Velocity, float DeltaTime);
};