LandscapeSplineRaster.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "LandscapeSplineSegment.h"
 
class ULandscapeInfo;
class ULandscapeLayerInfoObject;
 
namespace LandscapeSplineRaster
{
#if WITH_EDITOR
    bool FixSelfIntersection(TArray<FLandscapeSplineInterpPoint>& Points, FVector FLandscapeSplineInterpPoint::* Side);
 
    struct FPointifyFalloffs
    {
        FPointifyFalloffs(float StartFalloff, float EndFalloff)
            : StartLeftSide(StartFalloff)
            , EndLeftSide(EndFalloff)
            , StartRightSide(StartFalloff)
            , EndRightSide(EndFalloff)
            , StartLeftSideLayer(StartFalloff)
            , EndLeftSideLayer(EndFalloff)
            , StartRightSideLayer(StartFalloff)
            , EndRightSideLayer(EndFalloff)
        {
        }
 
        FPointifyFalloffs()
            : FPointifyFalloffs(0.0f, 0.0f)
        {
 
        }
 
        float StartLeftSide;
        float EndLeftSide;
        float StartRightSide;
        float EndRightSide;
        float StartLeftSideLayer;
        float EndLeftSideLayer;
        float StartRightSideLayer;
        float EndRightSideLayer;
    };
 
    void Pointify(const FInterpCurveVector& SplineInfo, TArray<FLandscapeSplineInterpPoint>& OutPoints, int32 NumSubdivisions,
        float StartFalloffFraction, float EndFalloffFraction,
        const float StartWidth, const float EndWidth,
        const float StartLayerWidth, const float EndLayerWidth,
        const FPointifyFalloffs& Falloffs,
        const float StartRollDegrees, const float EndRollDegrees);
 
    void RasterizeSegmentPoints(ULandscapeInfo* LandscapeInfo, TArray<FLandscapeSplineInterpPoint> Points, const FTransform& SplineToWorld, bool bRaiseTerrain, bool bLowerTerrain, ULandscapeLayerInfoObject* LayerInfo);
#endif
}