UBehaviorTreeComponent::GetNodeMemory
#include "BehaviorTree/BehaviorTreeComponent.h"
Access: public
Specifiers: const
Description
Returns a pointer to the raw per-instance memory block allocated for a node, as configured by that node's GetInstanceMemorySize. This is the low-level accessor behind GetNodeMemory<T> on individual node classes.
Caveats & Gotchas
- • The returned pointer is only valid for the current frame's execution — the instance stack can be reallocated between ticks, so never cache this pointer across frames.
- • Prefer calling GetNodeMemory<T>() on the node itself (which wraps this and does the cast) rather than calling this directly and reinterpret_casting the result.
Signature
uint8* GetNodeMemory(const UBTNode* Node, int32 InstanceIdx) constParameters
| Name | Type | Description | Default |
|---|---|---|---|
| Node | const UBTNode* | Node (usually the template) whose per-instance memory block should be returned. | — |
| InstanceIdx | int32 | Index of the instance stack entry that owns the memory block. | — |
Return Type
uint8* Example
Fetching raw memory for a node instance C++
uint8* RawMemory = OwnerComp.GetNodeMemory(NodeTemplate, InstanceIdx);
FMyTaskMemory* TaskMemory = reinterpret_cast<FMyTaskMemory*>(RawMemory);See Also
Version History
Introduced in: 4.0
| Version | Status | Notes |
|---|---|---|
| 5.6 | stable | — |
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