WorldPartitionRuntimeContainerResolving.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreFwd.h"
#include "Misc/Guid.h"
#include "Containers/Map.h"
#include "UObject/NameTypes.h"
#include "UObject/ObjectMacros.h"
#include "WorldPartition/WorldPartitionActorContainerID.h"
#include "WorldPartitionRuntimeContainerResolving.generated.h"
 
USTRUCT()
struct FWorldPartitionRuntimeContainerInstance
{
    GENERATED_USTRUCT_BODY()
public:
    FWorldPartitionRuntimeContainerInstance()
    {}
 
    FWorldPartitionRuntimeContainerInstance(const FGuid& InActorGuid, FName InContainerPackage)
        : ActorGuid(InActorGuid), ContainerPackage(InContainerPackage)
    {}
 
private:
    UPROPERTY()
    FGuid ActorGuid;
 
    UPROPERTY()
    FName ContainerPackage;
 
    friend struct FWorldPartitionRuntimeContainerResolver;
};
 
USTRUCT()
struct FWorldPartitionRuntimeContainer
{
    GENERATED_USTRUCT_BODY()
public:
#if WITH_EDITOR
    void AddContainerInstance(FName InActorName, const FWorldPartitionRuntimeContainerInstance& InContainerInstance)
    {
        check(!ContainerInstances.Contains(InActorName));
        ContainerInstances.Add(InActorName, InContainerInstance);
    }
#endif
    SIZE_T GetAllocatedSize() const;
private:
    UPROPERTY()
    TMap<FName, FWorldPartitionRuntimeContainerInstance> ContainerInstances;
 
    friend struct FWorldPartitionRuntimeContainerResolver;
};
 
USTRUCT()
struct FWorldPartitionRuntimeContainerResolver
{
    GENERATED_USTRUCT_BODY()
public:
    bool IsValid() const { return !MainContainerPackage.IsNone(); }
    bool ResolveContainerPath(const FString& InSubObjectString, FString& OutSubObjectString) const;
    SIZE_T GetAllocatedSize() const;
    
#if WITH_EDITOR
    void SetMainContainerPackage(FName InContainerPackage)
    {
        check(MainContainerPackage.IsNone());
        MainContainerPackage = InContainerPackage;
    }
 
    FWorldPartitionRuntimeContainer& AddContainer(FName InContainerPackage)
    {
        check(!Containers.Contains(InContainerPackage));
        return Containers.Add(InContainerPackage);  
    }
 
    bool ContainsContainer(FName InContainerPackage)
    {
        return Containers.Contains(InContainerPackage);
    }
 
    void BuildContainerIDToEditorPathMap();
    const FString* FindContainerEditorPath(const FActorContainerID& InContainerID) const { return ContainerIDToEditorPath.Find(InContainerID); }
#endif
private:
    UPROPERTY()
    TMap<FName, FWorldPartitionRuntimeContainer> Containers;
    UPROPERTY()
    FName MainContainerPackage;
 
#if WITH_EDITORONLY_DATA
    // Reverse lookup :
    // ex: {ContainerID}, "LevelInstance1.LevelInstance2"
    UPROPERTY()
    TMap<FActorContainerID, FString> ContainerIDToEditorPath;
#endif
};