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  3. FMaterialLayersFunctionsTree

FMaterialLayersFunctionsTree

API > API/Runtime > API/Runtime/Engine > API/Runtime/Engine/Materials

References

   
Module Engine
Header /Engine/Source/Runtime/Engine/Public/Materials/MaterialLayersFunctions.h
Include #include "Materials/MaterialLayersFunctions.h"

Syntax

USTRUCT ()  
struct FMaterialLayersFunctionsTree

Variables

  Type Name Description
Public variable TArray< FNode > Nodes  
Public variable TArray< FPayload > Payloads  
Public variable FNodeId Root  

Constructors

  Type Name Description
Public function    
Public function    
Public function    

Functions

  Type Name Description
Public function FNodeId

AddNode ( const FPayload& InPayload,
FNodeId InParent,
int32 InAtChildIndex
)

 Add a new node with the specified Payload under the InPArent at the specified child index the new node id is returned
Public function void

Empty ()

  
Public function Const TArray< FNodeId >

GetChildrenIds ( FNodeId InNodeId
)

 Gather the list of children for this node.
Public function Const int32

GetDepth ( FNodeId InNodeId
)

 Return the depth of the node in the tree, the root is depth 0 the first valid node in the tree under the root is depth 1
Public function Const FNode *

GetNode ( FNodeId InNodeId
)

 Find and return the node at the specified Id or null if invalid.
Public function Const FNode *

GetParent ( FNodeId InNodeId
)

 Find and return the parent node at the specified Id or null if invalid.
Public function Const FPayload *

GetPayload ( FNodeId InNodeId
)

 Find and return the node payload at the specified Id or null if invalid.
Public function Const FNodeId

GetSiblingHeadId ( FNodeId InNodeId
)

 Find the node which is the head of the list of siblings where InNodeID belongs.
Public function Const bool

IsEmpty ()

  
Public function Const bool Authoring the Tree.
Public function Const FString

Log ( FString InTab
)

 Logging the tree data structure, useful for debugging generate a multiline string representing the tree nodes hierarchy with the payload info per node
Public function TArray< FNodeId >

RemoveNode ( FNodeId RemovedNodeId
)

 Remove this node detach the node from the tree hierarchy as well as all the children recursively the nodes are all cleared in the array of nodes the payloads are NOT cleared and still hold on their value return the array of Id of the removed nodes
Public function bool  
Public function Const void

Traverse ( V InVisitor,
FNodeId InRootNodeId
)

  
Public function Const FNodeId

TraverseNode ( V InVisitor,
FNodeId InNodeId,
int32 InDepth,
int32 InSiblingNum
)

  

Operators

  Type Name Description
Public function Const bool  
Public function FMaterialLayersFunctionsTree &  
Public function Const bool  

Classes

  Type Name Description
Public struct FNode    
Public struct FPayload    

Typedefs

Name Description
FNodeId  
FNodeVisitor Traverser Utility.
FPayloadId  

Constants

Name Description
InvalidId  

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