AI: Single or multiple behavior trees?

Development Programming & Scripting Blueprint
1

This isn’t BP question per se, but I am wondering about pros and cons of using multiple behavior trees vs a single one.

Does it make sense to have 2 behavior trees, one for non-combat and for combat, and switch them (if possible) when appropriate, instead of having one massive behavior tree that incorporate both combat and non-combat behaviors ?

Thanks

2

The first cons thing that comes to mind with duplicate trees means duplicating code such as moving around or special situations and zero pros.

3

Th

These trees are not going to be duplicates. I am basically going to split current tree into separate ones, for easier management and organization.

4

I suppose that many actions happen in the two places, it all depends on how is your game of course.

5

You can run a behavior tree as a task inside another behavior tree. With this approach you have one top-level behavior tree that runs combat and non-combat sub behavior trees through a selector, thus keeping all AI logic in one place.

2 Likes
6

Amazing. Thank you this solves my problem.