Hey all, working on a simple click to move game, using a GridMap to do level building which is working wonders for me, but I can't seemt o figure out how to get it to work with click to move. I've followed a few tutorials, but they don't work with a GridMap. Here's what I've got so far (give me a minute to get the formatting correct, still new to the way Godot forums does their stuff)

func get_world_pos() -> void:
var mouse_pos = get_viewport().get_mouse_position()
var ray_length = 100;
var from = camera.project_ray_origin(mouse_pos)
var to = from + camera.project_ray_normal(mouse_pos) * ray_length
var space = get_world_3d().direct_space_state
var ray_query = PhysicsRayQueryParameters3D.new()
ray_query.from = from
ray_query.to = to

var result = space.intersect_ray(ray_query)
print(result.position)

navigation_agent.target_position = result.position

usually when I try to make this work and click on a GridMap object, I get this error:
"Invalid get index 'position' (on base: 'Dictionary')

Any ideas? Any tutorials on this?

Ok I tried changing the code to the code from the documents:

`var space_state = get_world_3d().direct_space_state
var mousepos = get_viewport().get_mouse_position()

var origin = camera.project_ray_origin(mousepos)
var end = origin + camera.project_ray_normal(mousepos) * 5000
var query = PhysicsRayQueryParameters3D.create(origin, end)
query.collide_with_areas = true

var result = space_state.intersect_ray(query)
print(result)`

which seems to be working just fine. The only problem is that if I click on anything from my GridMap, it just returns { } but if I click on other things I get actual positions in the world. So I have no idea what I can't click on GridMaps.

I have also seen things about not being able to attack scripts to GridMap objects, is that true? If I want to add a script for something like a resource rock that a player can interact with, will that not work with GridMap? Is that true or old info?

award Probably not lol. I will check that and see if its the problem later. But that looks like the link that I need to get it done right! so thanks!

    award That seems to have worked! Well it has worked for my flat plane ground object at least. So progress!

    The link you sent shows there is a way to have the collision automatically set based on the mesh, but I can't find that ability anywhere. The docs show a button, but in the editor that button doesn't appear to exist, and I don't see anywhere else where that functionality would be. Did they move it to a new spot?

      award I just upgraded! I think I am seeing the problem I had before, and how to properly bring in the meshes. I downloaded the tutorial from the docs and that helped too. Thanks for all the info!

        award
        I actually found the answer to this question lol. Thanks for all the help though!
        One last question, I am trying to compare the tutorials and documents and get my version working and noticing a slight discrepancy.

        When I go to create a mesh library, it only exports a single room object, not all of them. I am not really sure what is causing this, but I do see that if I open my model (the blender model which has all the rooms in it) I have to open it as a child of a 3D node, but in the tutorial files all the room meshes are already in a scene as a direct child of the root node. So it looks like the system will only export things that are diret children of the root node. So how would I get all of the room meshes to be a child of the root node, and not a child of a child of the root node?

        I am just not finding proper information for going from an exported model to the mesh library.

        NVM, I found it! Just had to click "New Inherited Scene" and that opened it properly.