Snap 3D Cursor

extends Spatial
func _process(_delta):
    #parent variables
    var Level_node = get_parent().get_parent()
    var Command_Camera = Level_node.get_child(1).get_child(0)
    var ray_origin = Vector3()
    var ray_target = Vector3()
    var mouse_position = get_viewport().get_mouse_position()
    ray_origin = Command_Camera.project_ray_origin(mouse_position)
    ray_target = ray_origin + Command_Camera.project_ray_normal(mouse_position) * 1000
    var space_state = get_world().direct_space_state
    var intersection = space_state.intersect_ray(ray_origin, ray_target)
    var Projected_cursor = Level_node.get_child(1).get_child(2)
    var Cursor_3D = Level_node.get_child(1).get_child(1)

    if Input.is_action_pressed("Mouse_left"):
        if not intersection.empty():
            var pos = intersection.position
            Projected_cursor.translation = Vector3(pos.x,pos.y,pos.z)
            if Projected_cursor.translation.distance_to(translation) < 0:
                Projected_cursor.translation.distance_to(translation) * -1
            if Projected_cursor.translation.distance_to(translation) < 1:
                Cursor_3D.translation = translation