freeing objects when then leave the screen

mini-game/scenes/bonuses/bonus1.tscn

@@ -4,9 +4,6 @@
 [ext_resource path="res://mini-game/ressources/sprites/bonus/bone.png" type="Texture" id=2]
 [ext_resource path="res://mini-game/scenes/effets/pick_bonus.tscn" type="PackedScene" id=3]
 
-
-
-
 [sub_resource type="RectangleShape2D" id=1]
 extents = Vector2( 24.0183, 9.31512 )
 
@@ -21,4 +18,6 @@ texture = ExtResource( 2 )
 
 [node name="CollisionShape2D" type="CollisionShape2D" parent="pick_bonus"]
 shape = SubResource( 1 )
+
+[node name="notifier" type="VisibilityNotifier2D" parent="."]
 [connection signal="body_entered" from="pick_bonus" to="." method="_on_pick_bonus_body_entered"]

mini-game/scenes/obstacles/obstacle1.tscn

@@ -18,4 +18,6 @@ texture = ExtResource( 2 )
 
 [node name="CollisionShape2D" type="CollisionShape2D" parent="collision_obstacle"]
 shape = SubResource( 1 )
+
+[node name="notifier" type="VisibilityNotifier2D" parent="."]
 [connection signal="body_entered" from="collision_obstacle" to="." method="_on_collision_obstacle_body_entered"]

mini-game/scripts/bonus1.gd

@@ -1,6 +1,15 @@
 extends "scroll_movement.gd"
 
 
+onready var notifier = $notifier
+
+func _ready():
+	get_node("notifier").connect("screen_exited", self, "_on_screen_exited")
+
+func _on_screen_exited():
+	print("Bonus exited the screen")
+	queue_free()
+
 func _physics_process(delta):
 	move()
 	

mini-game/scripts/obstacle1.gd

@@ -1,12 +1,22 @@
 extends "scroll_movement.gd"
 
 
+
+onready var notifier = $notifier
+
+func _ready():
+	get_node("notifier").connect("screen_exited", self, "_on_screen_exited")
+
+func _on_screen_exited():
+	print("Obstacle exited the screen")
+	queue_free()
+
 func _physics_process(delta):
 	move()
 
 
-
 func _on_collision_obstacle_body_entered(body):
 	if body.name == "player2" : 
 		Signals.emit_signal("die")
 		queue_free()
+