Flying and paths

OllyMUK

Hi
Is there a way that I can make an NPC fly along a Path? The path itself supports vertical movement, and I've disabled gravity on the paths. I've also disabled gravity on the NPC. However the NPC doesn't appear to move up or down when the path Y axis changes.

The use case here is that I need some drones flying about, which will change paths depending on interactions, and clearly going up and down is part of that.

Here's a video showing what I see.
https://imgur.com/a/A5FTFT4

I've tried using rigidbody movement and without, but I've not tried with root motion on (I feel it's overkill as I just want dull cubes moving about). Gravity is disabled on the path and NPC.

AC 1.79.3
Unity 2022.3.4f1

Olly

ChrisIceBox

You won't want root motion - that'll add more complexity into the mix.

Sounds like you've done everything right. Could you share screenshots of the NPC's root Inspector? I'll attempt a recreation.

OllyMUK

Hi @ChrisIceBox

Here are the screenshots
https://imgur.com/a/P4R2q7u

I've added one of the Path object too so you can check the settings there.

Olly

ChrisIceBox

Thanks, with this I've recreated the issue.

I'll issue an official fix in the next update, but in the meantime you should be able to apply a hack for it by opening up AC's Char script and replacing:

if (!SceneSettings.IsUnity2D ())

(around line 1932 in the latest release)

with:

if (!SceneSettings.IsUnity2D () && (GetPath () == null || !GetPath ().affectY)))

OllyMUK

Line 1932 in v1.80.4 reads

if (!SceneSettings.IsUnity2D () && flatten3D)

Is that the one? Should I update to

if (!SceneSettings.IsUnity2D () && (GetPath () == null && flatten3D || !GetPath ().affectY)))

?

ChrisIceBox

v1.80.4 includes the fix - you don't need to amend it.