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  3. ULevelInstanceSubsystem

ULevelInstanceSubsystem

[ULevelInstanceSubsystem](API\Runtime\Engine\LevelInstance\ULevelInstanceSubsystem)

API > API/Runtime > API/Runtime/Engine > API/Runtime/Engine/LevelInstance

Inheritance Hierarchy

References

   
Module Engine
Header /Engine/Source/Runtime/Engine/Public/LevelInstance/LevelInstanceSubsystem.h
Include #include "LevelInstance/LevelInstanceSubsystem.h"

Syntax

UCLASS (MinimalAPI)  
class ULevelInstanceSubsystem :  
    public UWorldSubsystem ,  
    public IStreamingWorldSubsystemInterface

Remarks

ULevelInstanceSubsystem

Constructors

  Type Name Description
Public function    

Destructors

  Type Name Description
Public function Virtual    

Functions

  Type Name Description
Public function Static void  
Public function void  
Public function void  
Public function bool

BreakLevelInstance ( ILevelInstanceInterface* LevelInstance,
uint32 Levels,
TArray< AActor* >* OutMovedActors,
ELevelInstanceBreakFlags Flags
)

  
Public function Const bool  
Public function Const bool

CanCommitLevelInstance ( const ILevelInstanceInterface* LevelInstance,
bool bDiscardEdits,
FText* OutReason
)

  
Public function bool

CanCreateLevelInstanceFrom ( const TArray< AActor* >& ActorsToMove,
FText* OutReason
)

  
Public function Const bool

CanEditLevelInstance ( const ILevelInstanceInterface* LevelInstance,
FText* OutReason
)

  
Public function Const bool

CanMoveActorToLevel ( const AActor* Actor,
FText* OutReason
)

  
Public function Const bool  
Public function Static bool

CanUsePackage ( FName InPackageName
)

  
Public function Static bool

CanUseWorldAsset ( const ILevelInstanceInterface* LevelInstance,
TSoftObjectPtr< UWorld > WorldAsset,
FString* OutReason
)

 Checks if a WorldAsset can/should be used in a LevelInstance
Public function Static bool

CheckForLoop ( const ILevelInstanceInterface* LevelInstance,
TArray< TPair< FText, TSoftObjectPtr< UWorld > > >* LoopInfo,
const ILevelInstanceInterface** LoopStart
)

  
Public function Static bool

CheckForLoop ( const ILevelInstanceInterface* LevelInstance,
TSoftObjectPtr< UWorld > WorldAsset,
TArray< TPair< FText, TSoftObjectPtr< UWorld > > >* LoopInfo,
const ILevelInstanceInterface** LoopStart
)

 Lambda expr format that checks ancestor owners of a LevelInstance.
Public function bool

CommitLevelInstance ( ILevelInstanceInterface* LevelInstance,
bool bDiscardEdits,
TSet< FName >* DirtyPackages
)

  
Public function ILevelInstanceInterface *

CreateLevelInstanceFrom ( const TArray< AActor* >& ActorsToMove,
const FNewLevelInstanceParams& CreationParams
)

  
Public function void

EditLevelInstance ( ILevelInstanceInterface* LevelInstance,
TWeakObjectPtr< AActor > ContextActorPtr
)

  
Public function Const void

ForEachActorInLevelInstance ( const ILevelInstanceInterface* LevelInstance,
TFunctionRef< bool(AActor*LevelActor)> Operation
)

  
Public function Const void

ForEachLevelInstanceActorAncestors ( const ULevel* Level,
TFunctionRef< bool(AActor*)> Operation
)

 Returns the upper chain of level instance actors for the specified level starting with the level instance referencing the level.
Public function Const void  
Public function Const void

ForEachLevelInstanceAncestors ( const AActor* Actor,
TFunctionRef< bool(const ILevelInstanceInterface*)> Operation
)

  
Public function Const void Runs a lambda operation along the ancestors that own the LevelInstance.
Public function Const void  
Public function Const void

ForEachLevelInstanceChild ( const ILevelInstanceInterface* LevelInstance,
bool bRecursive,
TFunctionRef< bool(const ILevelInstanceInterface*)> Operation
)

  
Public function Const void

ForEachLevelInstanceChild ( ILevelInstanceInterface* LevelInstance,
bool bRecursive,
TFunctionRef< bool(ILevelInstanceInterface*)> Operation
)

  
Public function Const ILevelInstanceInterface *  
Public function Const ILevelInstanceInterface *

GetLevelInstance ( const FLevelInstanceID& LevelInstanceID
)

  
Public function Const bool

GetLevelInstanceBounds ( const ILevelInstanceInterface* LevelInstance,
FBox& OutBounds
)

  
Public function Static bool

GetLevelInstanceBoundsFromPackage ( const FTransform& InstanceTransform,
FName LevelPackage,
FBox& OutBounds
)

  
Public function Const bool

GetLevelInstanceEditorBounds ( const ILevelInstanceInterface* LevelInstance,
FBox& OutBounds
)

  
Public function Const ULevel *  
Public function Const ULevelStreamingLevelInstance *  
Public function Const TArray< ILevelInstanceInterface * >

GetLevelInstances ( const FString& WorldAssetPackage
)

  
Public function Static ULevel *

GetOwningLevel ( const ULevel* Level,
bool bFollowChainToNonLevelInstanceOwningLevel
)

  
Public function Const ILevelInstanceInterface *

GetOwningLevelInstance ( const ULevel* Level
)

  
Public function Const ILevelInstanceInterface *

GetParentLevelInstance ( const AActor* Actor
)

  
Public function Const TArray< AActor * >  
Public function Const bool

HasChildEdit ( const ILevelInstanceInterface* LevelInstance
)

  
Public function Const bool  
Public function Const bool

HasParentEdit ( const ILevelInstanceInterface* LevelInstance
)

  
Public function Const bool

IsCurrent ( const ILevelInstanceInterface* LevelInstance
)

  
Public function Const bool  
Public function Const bool  
Public function Const bool  
Public function Const bool

IsLoaded ( const ILevelInstanceInterface* LevelInstance
)

  
Public function Const bool

IsLoading ( const ILevelInstanceInterface* LevelInstance
)

  
Public function Const bool  
Public function Const bool  
Public function bool

MoveActorsTo ( ILevelInstanceInterface* LevelInstance,
const TArray< AActor* >& ActorsToMove,
TArray< AActor* >* OutActors
)

  
Public function Const bool

MoveActorsToLevel ( const TArray< AActor* >& ActorsToRemove,
ULevel* DestinationLevel,
TArray< AActor* >* OutActors
)

  
Public function void

OnActorDeleted ( AActor* Actor
)

  
Public function void  
Public function FLevelInstanceChanged &  
Public function FLevelInstancesUpdated &  
Public function void  
Public function void  
Public function Const bool  
Public function Const FString

PrefixWithParentLevelInstanceActorLabels ( const FString& ActorLabel,
const ULevel* Level
)

  
Public function FLevelInstanceID  
Public function void

RequestLoadLevelInstance ( ILevelInstanceInterface* LevelInstance,
bool bUpdate
)

  
Public function void  
Public function Static void

ResetLoadersForWorldAsset ( const FString& WorldAsset
)

  
Public function Const bool

SetCurrent ( ILevelInstanceInterface* LevelInstance
)

  
Public function void

SetIsHiddenEdLayer ( ILevelInstanceInterface* LevelInstance,
bool bIsHiddenEdLayer
)

  
Public function void

SetIsTemporarilyHiddenInEditor ( ILevelInstanceInterface* LevelInstance,
bool bIsHidden
)

  
Public function void

Tick ()

  
Public function void  

Overridden from UWorldSubsystem

  Type Name Description
Public function Virtual Const bool  

Overridden from USubsystem

  Type Name Description
Public function Virtual void Implement this for deinitialization of instances of the system
Public function Virtual void Implement this for initialization of instances of the system

Overridden from IStreamingWorldSubsystemInterface

  Type Name Description
Public function Virtual void  

Classes

  Type Name Description
Public class FLevelInstanceChanged Editor-only event triggered when level instance is committed with changes  
Public class FLevelInstancesUpdated Editor-only event triggered when level instances are reloaded after a change  

Constants

Name Description
bPrimitiveColorHandlerRegistered  

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