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

//~=============================================================================
// ConeBuilder: Builds a 3D cone brush, compatible with cylinder of same size.
//~=============================================================================

#pragma once

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

class ABrush;

UCLASS(MinimalAPI, autoexpandcategories = BrushSettings, EditInlineNew, meta = (DisplayName = "Cone"))
class UConeBuilder: public UEditorBrushBuilder
{
public:
    GENERATED_BODY()

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

    /** Distance from base to tip of cone */
    UPROPERTY(EditAnywhere, Category = BrushSettings, meta = (ClampMin = "0.000001"))
    float Z;

    /** Distance from base to the tip of inner cone (when hollow) */
    UPROPERTY(EditAnywhere, Category = BrushSettings, meta = (EditCondition = "Hollow"))
    float CapZ;

    /** Radius of cone */
    UPROPERTY(EditAnywhere, Category = BrushSettings, meta = (ClampMin = "0.000001"))
    float OuterRadius;

    /** Radius of inner cone (when hollow) */
    UPROPERTY(EditAnywhere, Category = BrushSettings, meta = (EditCondition = "Hollow"))
    float InnerRadius;

    /** How many sides this cone should have */
    UPROPERTY(EditAnywhere, Category = BrushSettings, meta = (ClampMin = "3", ClampMax = "500"))
    int32 Sides;

    UPROPERTY()
    FName GroupName;

    /** Whether to align the brush to a face */
    UPROPERTY(EditAnywhere, Category = BrushSettings)
    uint32 AlignToSide : 1;

    /** Whether this is a hollow or solid cone */
    UPROPERTY(EditAnywhere, Category = BrushSettings)
    uint32 Hollow : 1;

    //~ Begin UObject Interface
    virtual void PostEditChangeProperty(struct FPropertyChangedEvent& PropertyChangedEvent) override;
    //~ End UObject Interface

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

    // @todo document
    virtual void BuildCone(int32 Direction, bool InAlignToSide, int32 InSides, float InZ, float Radius, FName Item);
};