Any way to convert gridmap cell_item orientation to a basis or quat?

SalamiSam

Hey, fine people!

Does anyone know how to convert a gridmap's cell item's orientation to a Basis or Quat? I naively though the orientation represented a quat, then found out it's represented as an int.

Thanks!

cybereality

It looks like that int number is not a normal orientation value.

I found this is the docs (referring to what the int value represents).

This function considers a discretization of rotations into 24 points on unit sphere, lying along the vectors (x,y,z) with each component being either -1, 0, or 1, and returns the index of the point best representing the orientation of the object. It is mainly used by the grid map editor. For further details, refer to the Godot source code. https://docs.godotengine.org/en/stable/classes/class_basis.html#class-basis-method-get-orthogonal-index

So you may have to go hunting in the source to fully understand, it is not something I've seen before.

SalamiSam

Yeah, I looked in the source code on github for it but couldn't find it. Thanks though.

Bean_B_Beanie

I did some source code snooping, and in the C++ file for the Basis, I found this:

static const Basis _ortho_bases[24] = {

	Basis(1, 0, 0, 0, 1, 0, 0, 0, 1),

	Basis(0, -1, 0, 1, 0, 0, 0, 0, 1),

	Basis(-1, 0, 0, 0, -1, 0, 0, 0, 1),

	Basis(0, 1, 0, -1, 0, 0, 0, 0, 1),

	Basis(1, 0, 0, 0, 0, -1, 0, 1, 0),

	Basis(0, 0, 1, 1, 0, 0, 0, 1, 0),

	Basis(-1, 0, 0, 0, 0, 1, 0, 1, 0),

	Basis(0, 0, -1, -1, 0, 0, 0, 1, 0),

	Basis(1, 0, 0, 0, -1, 0, 0, 0, -1),

	Basis(0, 1, 0, 1, 0, 0, 0, 0, -1),

	Basis(-1, 0, 0, 0, 1, 0, 0, 0, -1),

	Basis(0, -1, 0, -1, 0, 0, 0, 0, -1),

	Basis(1, 0, 0, 0, 0, 1, 0, -1, 0),

	Basis(0, 0, -1, 1, 0, 0, 0, -1, 0),

	Basis(-1, 0, 0, 0, 0, -1, 0, -1, 0),

	Basis(0, 0, 1, -1, 0, 0, 0, -1, 0),

	Basis(0, 0, 1, 0, 1, 0, -1, 0, 0),

	Basis(0, -1, 0, 0, 0, 1, -1, 0, 0),

	Basis(0, 0, -1, 0, -1, 0, -1, 0, 0),

	Basis(0, 1, 0, 0, 0, -1, -1, 0, 0),

	Basis(0, 0, 1, 0, -1, 0, 1, 0, 0),

	Basis(0, 1, 0, 0, 0, 1, 1, 0, 0),

	Basis(0, 0, -1, 0, 1, 0, 1, 0, 0),

	Basis(0, -1, 0, 0, 0, -1, 1, 0, 0)

};

Looks like the possible values for when you call GridMap.get_cell_item_orientation.