How to abort behavior subtree

Development Programming & Scripting AI
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1

When using “Run Behavior” from another behavior tree, aborting from the calling behavior tree does not abort in the child behavior. Is this expected? If so, is there a good way to work around it?

16513-runbehaviorabort.png
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Any help is appreciated :slight_smile:

EDIT: After further investigation, it seems that removing “Has a Location” decorator in the subtree allows it to work:

Before:

16514-doesnotabort.png

After:

16515-willabort.png

And this is what the decorator looks like: (Note: the subtree aborts perfectly when copy-pasted into the main tree)

16516-haslocationtarget.png
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I don’t quite understand why this decorator is stopping this from working? Has anyone experienced this?

2

I have managed a workaround for this issue:

Originally, I was setting the ‘TendToNeeds’ variable using “GetBlackboard->SetValueAsBool”. Changing this to a BlackboardKeySelector passed in seems to have worked in both trees (at least in this instance).

3

Thanks for reporting this bug.

Code fix in BehaviorTreeManager.cpp - at the end of InitializeNodeHelper() function, replace line:

CompositeOb->InitializeComposite(InitList.Num() - 1);

with:

CompositeOb->InitializeComposite(ExecutionIndex - 1);