Trouble with hitboxes/hurtboxes, related to godot collission layers and mask

Godot Version

godot v4.3

Question

Hello,

I tried to follow this video about making hitboxes and hurtboxes but realised that it didn’t really explain how to set up for example enemy damaging the player:

So I tried give my player character a hurtbox and set it to different mask layer so player wouldn’t damage itself, but it still does this, even tough I think they shouldn’t be able to detect eachother.

I’m unsure if I’m missing something or if I have just made a error.
Here’s the related code:

Hitbox:

class_name MyHitBox
extends Area2D

@export var damage := 10
@export var layer = 2

func _init() → void:
collision_layer = layer
collision_mask = 0

Hurtbox:

class_name MyHurtBox
extends Area2D

@export var mask = 2

func _init() → void:
collision_layer = 0
collision_mask = mask

func _ready() → void:
connect(“area_entered”, self._on_area_entered)

func _on_area_entered(hitbox: MyHitBox) → void:
if hitbox == null:
return

if owner.has_method("take_damage"):
	owner.take_damage(hitbox.damage)


Also inspector setting because I thought I could change these things based on the entity if I wanted to.