BT seems to get "stuck" until clicked on

[thelebaronParticipant]

Im currently using the latest version. Anyway I switched from behaviordesigner and Im running into a somewhat strange bug where using the behaviour trees, my ai characters it will get stuck on a custom node until I click the gameobject in the editor, where it resumes the action.

https://www.youtube.com/watch?v=VPwc1xvlf_Y&feature=youtu.be
another video(better quality but a little less clear when it happens)
http://youtu.be/iu4Y5QB5Y2o

ok video quality is way worse than I thought it would be: what happens npc’s shoot each other, the remaining surviving npcs should resume their patrol and break off from the pursue task but it just sticks on the pursue task unless I click them individually. Anyway this is reproducible, I can upload the whole project if necessary. How do I fix this?

the pursue task code:

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using NodeCanvas.Framework; using ParadoxNotion.Design; using UnityEngine;   namespace NodeCanvas.Tasks.Actions {       [Category("Actor")]     public class ActorPursue : ActionTask     {         public bool stopPursueWhenClose = false;         private bool mStopPursueWhenClose = false;           private Vector3 targetPosition;         private Transform targetTransform;         private ActorLocomotion actorLocomotion;         private ActorVision actorVision;         private ActorMind actorMind;         private ActorAttributes actorAttributes;           protected override void OnExecute()         {               actorLocomotion = agent.GetComponent<ActorLocomotion>();             actorMind = agent.GetComponent<ActorMind>();             actorAttributes = agent.GetComponent<ActorAttributes>();               targetTransform = actorMind.curTarget;         }           protected override void OnUpdate()         {             Go();         }           private void Go()         {             if (actorMind.curTarget == null)                 EndAction(false);               if (!actorAttributes.isAggroed)                 EndAction(false);               actorLocomotion.boltTarget = actorMind.curTarget.position;             actorLocomotion.speed = 5;               CompareDistance();               //EndAction(true);                        }           private void CompareDistance()         {               float dist = Vector3.Distance(actorMind.curTarget.position, agent.transform.position);             if (dist < actorAttributes.baseAttackRange / 2)             {                 if (stopPursueWhenClose)                     EndAction(true);                   EndAction(true);                              }                        }           protected override void OnStop()         {             actorLocomotion.speed = 3;         }           protected override void OnPause()         {           }     } }

[GavalakisKeymaster]

Hello,

I really appreciate all the information provided, but it’s a bit hard to tell whats going on :/
Can you please send me some reproduction project ( info_at_nodecanvas.com )?

Thanks a lot,
Gavalakis Vaggelis

[thelebaronParticipant]

Hi, I sent an email with a link to the project and details on how to reproduce it.

[GavalakisKeymaster]

Hello,

Sorry for being late.
I have replied to your email.
Please let me know.

Cheers!

[sanityParticipant]

Hi I am having the same problem right now, could let me in on what was causing it?

[sanityParticipant]

NVM! I think I figured it out… finny that I’ve been gnawing on this for 2 hours and got it 10 mins after posting here…

Essentially the GameObject got destroyed after I checked if it was null but before my outside ISense mono-behavior updated its list of objects in sense, so my node canvas grabbed null from it and tried to run with it.

I added a null check to the guilty Action task and that solved it.

[GavalakisKeymaster]

Hello,

Glad to know it’s solved for you.
By the way, make sure to use CheckUnityObject in case you are actualy checking a UnityObject for null, instead of CheckVariable.

Cheers!

[Author]

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