LandscapeSplineActor.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "UObject/ObjectMacros.h"
#include "GameFramework/Actor.h"
#include "ILandscapeSplineInterface.h"
#include "LandscapeSplineActor.generated.h"
 
class ALandscape;
 
UCLASS(MinimalAPI, NotBlueprintable, NotPlaceable, hidecategories = (Display, Attachment, Physics, Debug, Lighting, Input))
class ALandscapeSplineActor : public AActor, public ILandscapeSplineInterface
{
    GENERATED_UCLASS_BODY()
 
protected:
    UPROPERTY()
    FGuid LandscapeGuid;
 
#if WITH_EDITORONLY_DATA
    UPROPERTY(EditAnywhere, Category = "Target Landscape")
    TObjectPtr<ALandscape> LandscapeActor;
#endif
    
public:
    virtual FGuid GetLandscapeGuid() const override { return LandscapeGuid; }
    virtual ULandscapeSplinesComponent* GetSplinesComponent() const override;
    virtual FTransform LandscapeActorToWorld() const override;
    virtual ULandscapeInfo* GetLandscapeInfo() const override;
    virtual void UpdateSharedProperties(ULandscapeInfo* InLandscapeInfo) override;
    virtual bool IsSplineOwnerValid() const override;
        
#if WITH_EDITOR
    LANDSCAPE_API bool ShouldPartitionSpline() const;
    LANDSCAPE_API bool HasGeneratedLandscapeSplineMeshesActors() const;
    void SetLandscapeGuid(const FGuid& InGuid);
    virtual void GetActorDescProperties(FPropertyPairsMap& PropertyPairsMap) const override;
 
    void GetSharedProperties(ULandscapeInfo* InLandscapeInfo);
 
    virtual void Destroyed() override;
    virtual void PostRegisterAllComponents() override;
    virtual void UnregisterAllComponents(bool bForReregister = false) override;
    virtual void PostEditMove(bool bFinished) override;
    virtual void PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent) override;
    virtual bool EditorCanAttachTo(const AActor* InParent, FText& OutReason) const override { return false; }
    virtual AActor* GetSceneOutlinerParent() const;
    virtual bool SupportsForeignSplineMesh() const override { return false; }
 
    // Interface existes for backward compatibility. Should already be created since its this actor's root component.
    virtual void CreateSplineComponent() override { check(false); }
    virtual void CreateSplineComponent(const FVector& Scale3D) override { check(false); }
 
private:
    LANDSCAPE_API void SetLandscapeActor(ALandscape* InLandscapeActor);
    friend class UWorldPartitionLandscapeSplineMeshesBuilder;
#endif
};