Official AI Planner version 0.2.4 released

@TrevorUnity Do u mean dots AI package like dots behavior tree?

 

@TrevorUnity I am getting the following error on a seemingly simple domain:

"ArgumentException: A component with type:BuildBarracksFixupReference has not been added to the entity."
(BuildBarracks is one of my defined actions)

I can't really figure out whether I am doing something wrong, it all looks good to me.

I know you said the package hasn't been in active development for a long time but is there any chance at all there might be some way to resolve my compilation errors? Currently writing a bachelor thesis on the AI Planner package :/

 

Hi @TrevorUnity! Thanks for your response.

I'll post a screenshot of the other error message I got below. There are also some warnings that I think are unrelated because I haven't seen them before, but the two error messages are what I have been getting lately.

In terms of custom actions and preconditions, I haven't included anything custom. All my actions, problem definitions and termination criteria are very basic and simple ones, basically just following along the provided instructions in the AI Planner documentation.



Let me know if there's anything else I can provide that might help, code etc.

Cheers!

PS. I have noticed a couple of other issues quite frequently that I'd be happy to share as well.

 

@TrevorUnity Sharing here so others might benefit!

A screenshot of the BuildBarracks action in the unity editor. I'll upload the code file as well.


Do let me know if there are any other files I can provide.

Again, thanks for taking the time to help. Greatly appreciated!

 

Stack trace seems to point to the following line 143. Not sure what < m_StatesToExpand[jobIndex] > does, but yeah.




Here is the declaration on line 28.

 

@TrevorUnity Hi.

The below is what the plan visualizer gives when I run the program. It seems to me that basically no plan is generated at all, and it is immediately marked as complete.



This has me thinking that there may be something I am doing wrong in my plan/termination definitions, although I have no idea what. Not sure why that would throw an argument exception, though.

Cheers

EDIT for some context, the building spot and citadel objects are two objects that are part of my scene, nothing that has been generated by the planner or anything like that.

 

@TrevorUnity Sorry for also delayed response.

Currently I only have one action, and it doesn't have any preconditions. This is what it looks like:


It's a very simple model, I didn't make it very far before getting errors D:

This is the plan definition:


And there are no initial objects of type Barracks, so the plan wouldn't be terminating immediately on start up.

Weird thing is that it was working at one point, but then (seemingly) inexplicably stopped working. My AI was actually building barracks! I don't know what I did and can't pinpoint exactly when it changed. I did have a lot of trouble with duplicate files however. I remember that the auto-generated code would generate duplicates, and I would have to manually delete the files. Maybe that helps? In case I messed something up and deleted something crucial. But then after that I re-did the entire project from scratch without deleting any files just to make sure that wasn't the issue.

 

And just to re-iterate on some of my earlier posts, here is the error log I'm getting whenever I fire up the program:

 

@TrevorUnity So when I recreated the project I didn't delete any of the generated code. But I didn't have to, because I got this very error immediately before any duplicates had had a chance to be generated.

I'll give the debugging a try, although I'm not sure exactly what I'm looking for?

 

So AI team were busy making DOTS Navigation which is being on hold now. Will you guys resume work on AI Planner now? If not can you give us some insight into what are you working on?

 

I see, thanks for update

 

Unity really needs to open source and let us devs help make these things based on what unity wants, having these features announced in 2018 then put on hold 4 freaking years later, with likely no new updates for another year... Engines are made faster than some of these features it's ridiculous.

 

Is there a way to make AI Planner part of new initiatives?

 

Bad thing about feedback site is that we can not see feedbacks of others and can not like them or vote for them

So this looks like scream in a hole

 

@ericbegue added GOAP in his PANDA.BT, I think it's the official version now.

 

It would be nice to have a response though, even Microsoft manages to reply with visual studio recommendations even if rejected or merged to another pre-existing idea.

 

hi,is there any update for 2023.

 

thx for the update and amazing work.

 

Wow, thanks so much Trevor and AI planner team for this amazing package. I just learned about AI planner recently from a collegue and would like try it out. I attempted to install 0.30 preview of AI planner in unity 2021.3.9 LTS and got these errors.

There are so many dependencies related to burst, jobs, entities, etc. Can you suggest what is the latest version of unity that AI planner works in and what versions of the various packages are needed.

Many thanks.

 

@TrevorUnity Any news? Really curious what are you guys coocking behind the closed door...

 

Can you share some infomation like the scope of the project ? (a behavior tree/utility ai/planner or something else?) if not, can you elaborate why unity choose such "Close Door" strategy ?

 

THX for reply, will it be dots ready then?

 

hybrid sounds fine, or a frontend/api layer would also be a great choice, take your time and keep doing these amazing work!

 

Hi, would it be possible to have a small update that would make the AI planner usable with a newer version of unity?
Right now it is not usable with anything that uses a newer version of Entities . I was hopping to use it in my project in an unfinished state and update it once an official stable version is release.

 

Is the new tool called utility AI that I asked for years?

 

Would it be possible to get the source code for the AI Planner?

 

You can have it, just download through Package Manager like this:

 

Thanks for the quick reply, I appreciate it (I should've thought of that..)

Another question I had was; can the authors helpfully link to any papers they read in developing their approach of a trait-based query system, etc?

 

No worry, there are enough lightweight AI stuff out there. What did your team get moved to?

 

Did you have a road map for this package perhaps regular developers can finish where you left off. These kinda projects feel like community involvement rather than just unity staff would be great for the engine. Like a trusted developer programme for people to contribute.