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  3. UBlackboardData

UBlackboardData

API > API/Runtime > API/Runtime/AIModule > API/Runtime/AIModule/BehaviorTree

Inheritance Hierarchy

References

   
Module AIModule
Header /Engine/Source/Runtime/AIModule/Classes/BehaviorTree/BlackboardData.h
Include #include "BehaviorTree/BlackboardData.h"

Syntax

class UBlackboardData : public UDataAsset

Variables

  Type Name Description
Protected variable FBlackboard::FKey FirstKeyID  
Public variable TArray< FBlackboardEntry > Keys Blackboard keys
Public variable TObjectPtr< UBlackboardData > Parent Parent blackboard (keys can be overridden)
Public variable TArray< FBlackboardEntry > ParentKeys All keys inherited from parent chain

Constructors

  Type Name Description
Public function  

UBlackboardData ( const FObjectInitializer& ObjectInitializer
)

  

Functions

  Type Name Description
Public function Const FBlackboard::FKey  
Public function Const const FBlackboardEntry *  
Public function Const FBlackboard::FKey

GetKeyID ( const FName& KeyName
)

  
Public function Const FName  
Public function Const const TArray< FBlackboardEntry > &

GetKeys ()

  
Public function Const TSubclassOf< UBlackboardKeyType >  
Public function Const int32  
Public function Const bool  
Protected function Const FBlackboard::FKey

InternalGetKeyID ( const FName& KeyName,
EKeyLookupMode LookupMode
)

  
Public function Const bool

IsChildOf ( const UBlackboardData& OtherAsset
)

 Returns true if OtherAsset is somewhere up the parent chain of this asset.
Public function Const bool  
Public function Const bool

IsRelatedTo ( const UBlackboardData& OtherAsset
)

 Returns true if OtherAsset is equal to *this, or is it's parent, or *this is OtherAsset's parent
Public function Const bool

IsValid ()

  
Public function Const bool  
Public function void  
Public function void Fix entries with deprecated key types
Public function void  
Public function void Forces update of FirstKeyID, which depends on parent chain
Public function void Updates parent key cache for editor
Public function T *

UpdatePersistentKey ( const FName& KeyName
)

 Updates persistent key with given name, depending on currently defined entries and parent chain

Overridden from UObject

  Type Name Description
Public function Virtual void

PostEditChangeProperty ( FPropertyChangedEvent& PropertyChangedEvent
)

 Called when a property on this object has been modified externally
Public function Virtual void Called after the C++ constructor and after the properties have been initialized, including those loaded from config.
Public function Virtual void Do any object-specific cleanup required immediately after loading an object.

Enums

  Type Name Description
Protected enum EKeyLookupMode    

Typedefs

Name Description
FBlackboardDataChanged A delegate called on PostEditChangeProperty. Can be used in editor to react to asset changes.
FKeyUpdate  

Constants

Name Description
OnBlackboardDataChanged  
OnUpdateKeys Delegate called for every loaded blackboard asset meant for adding game specific persistent keys

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