ST_AudioFrequencyBandExpression.h

// Copyright (c) 2025 Aaron Trotter (ShaderTech). All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "UObject/ObjectMacros.h"
#include "MaterialExpressionIO.h"
#include "Materials/MaterialExpression.h"
#include "Main/ST_AudioProcessingSettings.h"
#include "ST_AudioFrequencyBandExpression.generated.h"

UCLASS(MinimalAPI, collapsecategories, hidecategories = Object)
class UST_AudioFrequencyBandExpression : public UMaterialExpression
{
    GENERATED_UCLASS_BODY()
 
public:

    UPROPERTY(EditAnywhere, Category = "ShaderTech", meta = (DisplayName = "IO Type", ShowAsInputPin = "Advanced"))
    EAudioIOType IOType = EAudioIOType::None;

    UPROPERTY(meta = (RequiredInput = "IOType != EAudioIOType::None", ToolTip = "IO Index. Required when IOType is None."))
    FExpressionInput IO;

    UPROPERTY(meta = (RequiredInput = "true", ToolTip = "Band Index"))
    FExpressionInput BandIndex;

    UPROPERTY(meta = (RequiredInput = "true", ToolTip = "History Index"))
    FExpressionInput HistoryIndex;

    UPROPERTY(meta = (RequiredInput = "true", ToolTip = "Channel Index"))
    FExpressionInput ChannelIndex;
 
    //~ Begin UMaterialExpression Interface
#if WITH_EDITOR
    virtual int32 Compile(class FMaterialCompiler* Compiler, int32 OutputIndex) override;

    virtual void GetCaption(TArray<FString>& OutCaptions) const override;
#endif
    //~ End UMaterialExpression Interface
};