Align a cube on a sphere surface

cube.gd

extends TestCube

export(NodePath) var cam
export(NodePath) var sphere

var from
var to
var cast

func _ready():
	set_process_input(true)
	set_fixed_process(true)
	pass
	
func _input(event):
	if(event.is_pressed()):
		var camera = get_node(cam)
		from = camera.project_ray_origin(event.pos)
		to = from + camera.project_ray_normal(event.pos) * 1000
		cast = true

func _fixed_process(delta):
	if(cast):
		var ss = get_world().get_direct_space_state()
		var r = ss.intersect_ray(from,to)
		set_translation(r.position)
		var t = get_global_transform().looking_at(get_global_transform().origin + r.normal,Vector3(1,0,1))
		set_global_transform(t)
		get_node(sphere).add_child(self)
		print(r)
		cast = false