Move in facing direction

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:bust_in_silhouette: Asked By niodem

I am trying to make a 3d chracter look at the mouse and move in facing direction when pressing a key - sounds simple ( and i think it is) - but i dont get it.

the code i use to look at the mouse:

extends Spatial

onready var camera = $Camera
onready var hero = $Grafik/PlayerBody/Hector
var velocity = Vector3()

var RayOrgigin = Vector3()
var RayEnd = Vector3()

func _physics_process(delta):

var space_state = get_world().direct_space_state
var Mouse_pos = get_viewport().get_mouse_position()
RayOrgigin = camera.project_ray_origin(Mouse_pos)
RayEnd = RayOrgigin + camera.project_ray_normal(Mouse_pos) * 100
var Ray_Hit = space_state.intersect_ray(RayOrgigin, RayEnd)
if not Ray_Hit.empty():
	var pos_ray = Ray_Hit.position

if i rotate (via look at) the whole scene the camera rotates too and u get an endless spinning around …
and i cant move and colide on just the model i think …

nodes in the szene are:

Player (Spatial)
Grafik (Spatial)
Hector(the glft file - Spatial)
Collision Shape

i know ther maybe an esay way but i rly dont find it…