Behavior Planner

Saw today unite talk about new AI-system
this is really impressive

And I wonder is it ECS based?

 

I was thinking the same question while watching the video, in my mind.... if Unity could make Ecs/Jobify…., Behavior planner, the new navmesh system and ML-Agents, so they can works all together with seamless integration.. well boy.... 2019 gonna be a good year for AI …. what else we can dream for... a ultra optimized native influence map? , wonder what qualifications do u need to be a "early adopter" for the behavior planner beta?

 

Talk to us Email us at ai.research@unity3d.com and share what project you're working on.

 

beta is available via the package manager, hooray!
and it is DOTS! insane

 

I installed the AI Planner package but its required Entities version is still preview.24. I already upgraded Entities to preview.29. Is there ETA on when would this be updated?

 

I also see that it uses an interface to implement the actions. I don't get this part. How do we access data from ECS then if it's implemented like this? Are we going to use EntityManager inside such action classes? I don't think that's advisable as it is slow.

The link for Otto is also broken: For a complete sample project, see: Otto.

 

You need unity 19.1b to update to preview29

 

I'm already on Unity 2019 and my Entities is preview.29. What I meant was that AI Planner has specific dependency to Entities preview.24. Shouldn't the AI Planner update as well to match the latest of Entities?

 

oh my bad.

Not if they want allow 18.3 users to test this package

 

How does it works for you ? I have troubles accessing to the traits' fields from Preconditions. Generating AI Domain Definition Classes throws errors (2019.1.0b8).

 

That did not make the cut before GDC, but is what our small team is working on next.

 

Apologies for not having the sample project up. This is incoming and will hopefully explain the usage of the planner.

 

Hmm... This is odd as the generated code should have implemented those. Did you get any errors when generating the code for the domain?

 

Sample project has now been posted to github and a new thread was created:
https://forum.unity.com/threads/ai-planner.649246/
^---- We will eventually sticky this thread

 

The code is generated. Only the errors I mentionned :

I managed to make the Otto sample work, so CS0122 shouldn't be a problem... already rebooted, reloaded Unity, tried to put HashCode in public, ...

Thank you for the sample, I'm now sure it does all I need ! I saw BaseAgent inherits from MonoBehaviour : is there a plan for a pure ECS implementation ?

 

Found it !

Switched the API Compatibility to 4.x before generating classes (my bad...). Let's play with this wornderful tool ! Thanks again !

 

That's something we'd like to support. However, it is lower on our priority list right now.

 

That's way sad. Gonna wait for the DOTS implementation. Thank you for the progress, though!

 

Can you share a bit more about what you'd be looking for? I think you're wanting to have the equivalent of operational actions for ECS entitites?

 

Well, I just wanna utilize the planning system within my Pure-ECS solution. I was hoping to find some way to make my environmental changes based on different conditions. I have rooms where there may be a wall, and there may also be a painting on this wall. And this wall might get replaced by an arch, but it has to hide the painting first. Or some other objects might need to switch their places while no one looks at those. In combination with some tame logic, I feel the planner would fit my needs. Besides, I want my NPCs to perform actions on following goals to make bots

 

Well, the planner is built on ECS. You can use the whole system via Controller and not have any MonoBehaviours. You'd need to create your own BaseAgent substitute because you need to initialize the Controller. The main thing is specifying the initial state.

 

Very cool, thank you! That's a topic to research. There are no such samples so far, are there?

 

Not yet. That was just me thinking off the top of my head how to enable this. The main issue we will need to solve is how operational actions work. I think even with Entities they'll have to happen on the main thread simply because of the callback nature until we figure out a way to have those operate at a systems level. We are co-creators, so definitely want to support your use case.

And by priorities I meant that the immediate need is to get up-to-date with latest com.unity.entities and get our systems into jobs as what we already released is using APIs that have now been deprecated in entities.

 

FYI @davenirline - there's an updated version on the latest Entities preview for the sample project and package: https://github.com/Unity-Technologies/otto

 

Would love to play with the otto demo but it doesn't seen to load in 2019.1.8 or later, it says because it has been serialized by a higher version of unity. It seems like it wants me to open it in 2019.1.0b10, but I wasn't able to figure out how to download older version of beta.

No doubt you guys have enough to do to last awhile, but I'd love to play with the otto demo if it's possible to update it! Thanks!

EDIT: I was able to find the beta archive, the earliest available option was 2019.2.0b, which gives the same error. I am able to work with AI Planner in the latest version with a new project, and I think I'm making some progress. Without asking for an explicit timeframe, is there anything Unity can tell us about what to expect with AI Planner (and possibly ML agent) tools?

 

Looks like you've already seen the updated post. The project was updated to 2019.1.8.