Behavior Tree: Aborted subtrees continue to show execution

Development Programming & Scripting AI
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1

Not sure if this would be a feature request or a bug report, but when a subtree is called by Run Behavior and then interrupted, the last active nodes and connections in the subtree continue to be highlighted in the behavior tree editor even though only nodes in the main tree are active. I would expect the aborted subtree to either lose the active nodes’ and connections’ highlights or stop animating the “bubbles” moving down the last active connections. In any case, some visual feedback when subtrees are aborted would be helpful.

2

Thanks for reporting this bug.

Quick fix, change FBehaviorTreeDebugger::UpdateDebuggerViewOnInstanceChange function, so it would clear displayed data when there’s no valid instance to show:

if (DebuggerInstanceIndex != INDEX_NONE)
{
	Refresh();
}
else
{
	ClearDebuggerState();
}
3

Hi,

We think this post contains useful information which we would like to share with our public UE4 community. With your approval, we would like to make a copy of this post on the public AnswerHub which includes the discussion but strips out your username and company name. Please let us know if you are okay with this.

Thanks!

4

Hi Ben,

Yes, I am okay with this.