// Copyright Epic Games, Inc. All Rights Reserved.

//~=============================================================================
// VolumetricBuilder: Builds a volumetric brush (criss-crossed sheets).
//~=============================================================================

#pragma once

#include "CoreMinimal.h"
#include "UObject/ObjectMacros.h"
#include "UObject/UObjectGlobals.h"
#include "Builders/EditorBrushBuilder.h"
#include "VolumetricBuilder.generated.h"

class ABrush;

UCLASS(MinimalAPI, autoexpandcategories = BrushSettings, EditInlineNew, NotPlaceable, meta = (DisplayName = "Volumetric"))
class UVolumetricBuilder: public UEditorBrushBuilder
{
public:
    GENERATED_BODY()

public:
    UVolumetricBuilder(const FObjectInitializer& ObjectInitializer = FObjectInitializer::Get());

    UPROPERTY(EditAnywhere, Category = BrushSettings, meta = (ClampMin = "0.000001"))
    float Z;

    UPROPERTY(EditAnywhere, Category = BrushSettings, meta = (ClampMin = "0.000001"))
    float Radius;

    UPROPERTY(EditAnywhere, Category = BrushSettings, meta = (ClampMin = "2", ClampMax = "1000"))
    int32 NumSheets;

    UPROPERTY()
    FName GroupName;

    //~ Begin UBrushBuilder Interface
    virtual bool Build(UWorld* InWorld, ABrush* InBrush = NULL) override;
    //~ End UBrushBuilder Interface

    // @todo document
    virtual void BuildVolumetric(int32 Direction, int32 InNumSheets, float InZ, float InRadius);
};