2D NavMesh PathFinding......

I have a weird issue trying to define walk paths for NPCs so I set the default action to Non-Walkable and then defined the walk paths shown below. When I start my game there are spawn points and they get spawned in at the start of the arrows but then for some reason teleport to the end.

Any ideas why this might be happening? I'm not sure if a non closed loop pathing has been tested or not and this would be considered a pretty odd shape I'm sure.

Edit: So I've placed some nav points in the areas that get teleported away from and they seem to path fine after instantiation. There's just something definitely going on with how the agent finds the closest nav point to attach to when instantiating in. I tried instantiating agents all over the top right horizontal path and they all instantly flashed on the path but then teleported elsewhere.

Ok this seems to be a Unity specific problem apologies. I set the agent updatePosition to false in awake and then waited some frames before setting updatePosition back to true and it teleports correctly to a nearby path position if it is off the path and works correctly. It also fixed spawning agents correctly on a path and not teleporting randomly.

Feel like I also had to use agent.Warp(transform.position) after Instantiation and before SetDestination was used..

 

What are the performance implications of using this system for runtime spawned trees for a Rust style game that use NavMeshObstacle (talking 200-300 items)? I think that's an important note that this system "can" be used for 2D Colliders if they are not baked into the navmesh if you use obstacles and the Carving feature, but they have to be defined as capsule or box.

 

Hi,

I'm not a game dev, and not Unity expert, and didn't made benchmarks, and navmesh is unity core feature. I made proof of concept, and still it is not a production code, and unity does not treat navmeshcomponents as production))) So it is up to you to find out and leave a feedback.

But 200-300 navmesh obstacles with carving of static objects is not a problem. As I believe.

All I can tell that 10k tiles is in milliseconds deal. And I'm glad to hear your findings.

 

@uweenukr @TSabos

Added flag "Tilemap Compress Bounds"

 

This asset works great, thanks!

I'm trying to learn how to move my agents. I got one that pretty much works great at seeking out a target by doing an agent.destination call. I'm trying to make one that just moves in a set direction until it hits a boundary but I'm not doing well. Can anyone point me at an example or docs that might help? Thanks.

 

Hi,

If you are looking for collision event, I think its very straight forward to use composite collider on tilemap and other collider on agent.

And if you just want to stay in programmed polygonal boundaries, just create a polygon collider and cast it against collider on agent.

 

Hi All,

Just to confirm, it works with 2019.1

 

Please can you create a Layer-Based System like the Layer of the Tilemap Brush.

 

@SuperFranTV Hi,

Give me more details. You want have multiple navmeshes? Or to bake only the certain layer of tilemap?
Describe what you want to achieve and I will create the ticket.

 

Hello sry for late answer, i want to bake multiple tilemaps with different z positions at the Tilemap-Component is a Variable named tile anchor -> there is a Z positon (layer based like Ground + Tree).

Next is i need to restart unity if i create Tilemaps (two different) with much tiles, than after restart unity generates the navmesh correctly.

 

Hi,

Recently burned my CPU. But now I'm back)
Made commit Add height override for Isometric Z as Y Tilemap, so even if tilemaps has Z value, you can set in Override Vector (1,1,0), and all will be flush.

 

Back to you @SuperFranTV,

I'm not experienced Unity dev, so I'm in struggle to understand use cases.
Can you share print screen or sample scene with case that is not working for you?

 

Maybe you can use some elements of this project to update your script?
* click *

 

@Mc_Xlebyshek,

Hi,

The project has 1000+ of man-hours or more. And I have only 10h in a month)
So navmesh plus is about mesh generation of _native_ navmesh for unity, not about AI or agents.
While Aron Granberg does not use unity pathfinding at all. So its incompatible)

pro version has mesh generator, nothing to add.
The single feature I see is to export unity navmesh data to A* mavmesh. But there is nothing to do with NavmeshPlus.

I can give you guideline how to do it if you want.

 

I have just started to work using you NavMeshPlus and just wondered if you could help me with a few things.
Firstly I have gone into the Barrels sprite editor and set the outline as tight as possible, yet this is as close as it gets? Is it possible to improve this and how?

Secondly what I really want to do is have the bottom 1 quarter of the barrel be the part that is not walkable so that the Agent can walk behind it as if it were actually on the floor?

Lastly, as you can be seen in the picture I have two levels of ground, currently each is on a different tile map, but I am not sure how to go about actually making them separate levels. I was going to use physics colliders on the edges you can't walk up, but not sure if this allows that.

 

Hi @brettsaunders

Hi, while colliders get better polygons, I didn't found public API to make fine triangulation out of box. So yes, it is as fine as it is. And if you talking about gap between barrel and navmesh - it is 100% fine, the gap is equal to radius of navmesh agent cylinder. So if agent 1 unit wide, you will have gap of 0.5 unit.

Walking behind barrel is also possible, you can split barrel on two planes, or edit its outline - here

I'm not experienced unity dev. but here is the sample

Feel free to ask any questions.

 

Just wanted to drop in and say thank you for making NavMeshPlus

 

Hi @mdotstrange,

I'm very appreciate your feedback.

 

I just finished a little game jam game using your tool- it worked great- thanks again! Here is the game- https://mdotstrange.itch.io/shabby-town-breakball

 

Hello @vhman ,

Please how do I make the grid size smaller? the baking size is too big.

Thank you.

 

@thecodesalim

Do you mean the gaps around the walls are too large?

 

Yes, it is too large

 

It is controlled by NavMeshAgent; play with these fields

 

Yes, Thank you. It worked.
I have another problem It changes the z position of my agent and the agent disappears from the tile map when I click play

 

Code (CSharp):

1. void Start()
2.     {
3.         agent = GetComponent<NavMeshAgent>();
4.         agent.updateUpAxis = false;
5.     }

This might help.

 

is it possible to bake navemsh during gameplay?
Thank you.

 

Look there:

 

Many thanks to @alkaitagi for help. Your answers are 100% correct.

 

I don't know. Just made a twitter account https://twitter.com/gdvm5/status/1141808594867957760

 

Unity are working on native 2D support for NavMesh, not limited to TileMap2d. I think we all here are super excited for this.

 

I was just about to post this video when i saw the thread. Glad more people are bring attention to this.

 

@alkaitagi

Do you have link to CreateMesh native API that referenced in video?

 

Here is some info, short - soon API will be exposed. But when?
https://twitter.com/melvmay/status/1144691230015668224

 

Hi,

Thank you for update. We will be glad to see NavmeshSurface2D on GitHub.
After some many years, a week is nothing))

 

@MelvMay good to hear, look forward to trying it.

 

Hello, where can i find the source of the new NavMesh2D? Could it be possible, that the NavMesh is generated by Colliders at Runtime not by a NavMesh Modifier?

 

Thank you for the Information.
Is there any date out?

Should the NavMeshAgents be scripted to a NavMeshAgents2D, because 2d is much lighter than 3d for performance ressons?

 

Ok thanks for this work.

Is there a "pre" Download of the Source, so we can test it?

 

Everything is working fine, pathfinding is working for tilemap.
But the problem is that when an agent is moving towards its target its z value is negative, i want it to be zero but it is not happening. Does anybody know why it is happening?
I Tried agent.updateupaxis = false but it is still changing the z positon

 

Hi, @Ocean257

agent.updateupaxis = false its about rotation. Does z value in constant or it changes over time?
I currently do not have access to test environment, but I assume there should be offset option
"baseOffset The relative vertical displacement of the owning GameObject."
Also agent tends to touch to navmesh. is your navmesh 0 on z?

is undesired behavior present on test project RedHotSweetPapper?

 

Hi, All.

Now NavMeshPlus source can be added as unity package (https://github.com/h8man/NavMeshPlus/issues/12)

 

Check it out NavMeshComponents 2019.3-2D!:
https://github.com/Unity-Technologi...ee/2019.3-2D/Assets/NavMeshComponents/Scripts

I just looked, its is intended for Unity 2019.3.0a10, but you can have a11 already.
If someone interested go and try it.

So how is it works? Idea is the same, you put NavMeshSourceTag2D component, it caches Mesh form a Collider, and later it is collected by NavMeshBuilder2d as Mesh source.

What's new? I'm not able to triangulate Collider into Mesh "natively/efficiently", NavMeshPlus collect meshes form sprites, that may or may not be available, NavMeshBuilder2d collects Meshes from Collider via new API.

And is it better? Yep, because usually Collider (physics) say where you can walk, not the shape (sprite).

Can you use Colliders in NavMeshPlus? Yep, API is public, can be easily implemented.

So theoretically anything with NavMeshSourceTag2D, that has a Collider2d will be baked into NavMesh (tilemaps or sprites, doesn't matter)