UBehaviorTreeComponent::UnregisterParallelTask
#include "BehaviorTree/BehaviorTreeComponent.h"
Access: public
Description
Removes a task from the internal list of active parallel tasks, undoing a prior RegisterParallelTask call.
Caveats & Gotchas
- • Called internally when a parallel task finishes or its owning branch is deactivated — not typically called from gameplay or custom task code.
- • InstanceIdx must match the instance the task was registered under, since the same task class can run concurrently in different subtree instances.
Signature
void UnregisterParallelTask(const UBTTaskNode* TaskNode, uint16 InstanceIdx);Parameters
| Name | Type | Description | Default |
|---|---|---|---|
| TaskNode | const UBTTaskNode* | Task to remove from the active parallel task list. | — |
| InstanceIdx | uint16 | Tree instance index the task belongs to. | — |
Return Type
void Example
Internal cleanup after a parallel task finishes C++
// Called by the tree once a parallel background task completes
OwnerComp.UnregisterParallelTask(ParallelTaskNode, InstanceIdx);Tags
Version History
Introduced in: 4.0
| Version | Status | Notes |
|---|---|---|
| 5.6 | stable | — |
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