add_outline_at_index seems to have no effect, how do I fix this?

Bobit

My code looks something like this:

navpoly_instance.navpoly.add_outline_at_index(outline, index)
print("%s has %s polygons and %s outlines" 
    % [name, navpoly_instance.navpoly.get_polygon_count(),  navpoly_instance.navpoly.get_outline_count()])

and every time it prints "Nav_Small has 1 polygons and 1 outlines". No errors, it just has no effect, so what do I do?

I need to build polygons using a script so that large actors don't get stuck on corners, but so far nothing I've tried has added any polygons.

calling navpoly_instance.navpoly.make_polygons_from_outlines() after this doesn't have an effect either

TwistedTwigleg

Crosspost of https://reddit.com/r/godot/comments/j9t6hh/add_outline_at_index_seems_to_have_no_effect_how/

Just adding this, as it was in the original post that got stuck in the moderation queue :smile:

Bobit

So it seems like adjusting a NavigationPolygon or NavigationMesh is only plausible before the program runs, until Godot 4.0 which is adding a Navigation2DServer, correct?

TwistedTwigleg

I believe that is correct. The run-time capabilities for navigation in Godot are kinda limited in Godot 3, based on my limited experience.

Bobit

Can I get an extremely rough estimate of when 4.0 will arrive then? Or maybe some help with compiling the unstable version cuz I tried and failed.

TwistedTwigleg

The estimated release for Godot 4.0 is ultimately "when it's ready", but I believe the Godot developers said in the last monthly Q&A video on YouTube that Godot 4.0 is projected to come out sometime in 2021-2022. I would say you could look into Navigation-Lite, but it only works for 3D. I tried to see if there is something similar for 2D, but unfortunately I could not find anything.

What platform are you compiling Godot 4.0 on? Where errors are you getting and does your GPU support Vulkan 1.0? Keep in mind that Godot 4.0 is unstable right now, and I would not recommend using it for any serious production. I did a game jam game with Godot 3.0 when it was in alpha and I would not recommend it.

If you are okay with using nightly versions, @Calinou has nightly Godot 4.0 builds here for Windows, MacOS, and Linux: https://hugo.pro/projects/godot-builds/

Bobit

I think I will just switch to 3D and use Navigation-Lite, since I was split on 3D before anyways. Thanks.