Godot-proposals: Allow getting the KinematicCollision `collider` when colliding with GridMap cells

[jshlw]

Describe the project you are working on:
A Minecraft-like game which uses lots of GridMap cells.

Describe the problem or limitation you are having in your project:
When the player collides to GridMap cells, KinematicCollision return null when getting properties such as collider.

Describe the feature / enhancement and how it helps to overcome the problem or limitation:
GridMap cells could return some value, assuming I'm using StaticBody in the mesh library.

Describe how your proposal will work, with code, pseudocode, mockups, and/or diagrams:

# Player.gd (KinematicBody)
var collision = get_slide_collision(0) # get collision with some `GridMap` cell
var collider = collision.collider # != null :D

If this enhancement will not be used often, can it be worked around with a few lines of script?:
I think it would be hard to implemment a GridMap from scratch just to add collisions for its cells.

[aaronfranke]

GridMap is not meant for creating games like Minecraft. If you have that many cells, you should be optimizing your meshes by avoiding drawing non-visible faces (at which point you should be creating meshes in code via SurfaceTool).

[Calinou]

See also the godot_voxel module.

[jamie-pate]

Also I'd suggest a better title for this issue, e.g.
KinematicCollision with GridMap returns null collider