Behavior Tree - Animation while wandering around

[StahlmotteParticipant]

Hi,
it´s me again.Im just playing around a little bit with the demo scenes. So i used the custom action with the “Choose Wander Position”-script in combination with a move-action to move my enemy around randomly. Works fine. The next step was to add the walk animation. After adding the animation, the animation works, but the enemy only walks to the first position. The Part of the tree looks like this:

CONSTRAINT (checks if player is near or not)
I- PARALLEL (Repeat Never / Fail Any / Succeed All)
I—- ACTION (Choose Wander Position / Repeat until Success)
I—- MOVE (Repeat Never)
I—- ANIMATE (Repeat Never)

I´m sure this is a quite trivial problem how to use the behaviour tree, but i don´t get it.

Best regards

Alex

[SigilKeymaster]

Check it in the behavior tree debugger to see what is happening. To open the debugger: while your project is playing, select the AI in question, open the Behavior Tree Editor, and set it to the Current AI (first option in the drop down).

I imagine what is happening is that the Animate node is still running (yellow), which is keeping the parallel from starting over because succeed is set to all. As an alternative I would probably set it up like this:

constraint (checks if player is near or not)
   sequencer (repeat never)
      choose wander position (repeat until success)
      parallel (fail: Any, succeed: Any, tiebreaker: Fail)
         move (repeat never)
         animate (repeat never)

[StahlmotteParticipant]

Hi Sigil,

thanks for the quick reply! Indeed the animation was marked yellow.

Tried like suggested. Didn´t work, but as soon as i changed the Sequencer to “Repeat Until Failure” it works.

Best regards,
Alex

[SigilKeymaster]

Ahhh, needing the repeat is probably due to the rest of the tree running, I didn’t take that into account. Glad you got it working.

[StahlmotteParticipant]

Yes, sounds valid.:-) Thanks for your support!

Alex

[Author]

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