LevelInstanceComponent.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "Components/SceneComponent.h"
#include "WorldPartition/Filter/WorldPartitionActorFilter.h"
#include "WorldPartition/WorldPartitionActorContainerID.h"
#include "LevelInstance/LevelInstanceTypes.h"
 
#include "LevelInstanceComponent.generated.h"
 
UCLASS(MinimalAPI)
class ULevelInstanceComponent : public USceneComponent
{
    GENERATED_UCLASS_BODY()
public:
#if WITH_EDITORONLY_DATA
    ENGINE_API virtual void Serialize(FArchive& Ar) override;
#endif
#if WITH_EDITOR
    // Those are the methods that need overriding to be able to properly update the AttachComponent
    ENGINE_API virtual void OnRegister() override;
    ENGINE_API virtual void PreEditUndo() override;
    ENGINE_API virtual void PostEditUndo() override;
    ENGINE_API virtual void PreEditChange(FProperty* PropertyAboutToChange) override;
    ENGINE_API virtual void PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent) override;
    ENGINE_API virtual void OnUpdateTransform(EUpdateTransformFlags UpdateTransformFlags, ETeleportType Teleport) override;
 
    ENGINE_API void UpdateEditorInstanceActor();
    ENGINE_API void OnEdit();
    ENGINE_API void OnEditOverrides();
    ENGINE_API void OnCommit();
    ENGINE_API void OnCommitOverrides();
 
    const FWorldPartitionActorFilter& GetFilter() const { return IsEditFilter() ? EditFilter : Filter; }
    ENGINE_API void SetFilter(const FWorldPartitionActorFilter& InFilter, bool bNotify = true);
    ENGINE_API const TMap<FActorContainerID, TSet<FGuid>>& GetFilteredActorsPerContainer() const;
    ENGINE_API void UpdateEditFilter();
    ENGINE_API void ClearCachedFilter();
private:
    ENGINE_API bool ShouldShowSpriteComponent() const;
    ENGINE_API void OnFilterChanged();
    ENGINE_API void SetActiveFilter(const FWorldPartitionActorFilter& InFilter);
    ENGINE_API bool IsEditFilter() const;
 
    friend class FLevelInstanceActorImpl;
    TWeakObjectPtr<AActor> CachedEditorInstanceActorPtr;
#endif
 
#if WITH_EDITORONLY_DATA
public:
    //Filters are only allowed on Embedded Level Instances Editor\Private LI per design.
    UPROPERTY()
    ELevelInstanceRuntimeBehavior ShadowDesiredRuntimeBehavior;
 
private:
    //, EditCondition="bFiltersAllowed"))
    UPROPERTY(EditAnywhere, Category = Filter, meta=(LevelInstanceFilter, DisableLevelInstancePropertyOverride, EditCondition = "ShadowDesiredRuntimeBehavior==ELevelInstanceRuntimeBehavior::Partitioned"))
    FWorldPartitionActorFilter Filter;
 
    UPROPERTY(EditAnywhere, Transient, Category = Filter, meta=(LevelInstanceEditFilter))
    FWorldPartitionActorFilter EditFilter;
 
    FWorldPartitionActorFilter UndoRedoCachedFilter;
 
    mutable FWorldPartitionActorFilter CachedFilter;
    mutable TOptional<TMap<FActorContainerID, TSet<FGuid>>> CachedFilteredActorsPerContainer;
 
    // Used to cancel the package getting dirty when editing the EditFilter which is transient
    bool bWasDirtyBeforeEditFilterChange;
#endif
};