diff --git a/game/doors/book_door.gd b/game/doors/book_door.gd
index 4700eb9..6007f9e 100644
--- a/game/doors/book_door.gd
+++ b/game/doors/book_door.gd
@@ -1,3 +1,4 @@
+@tool
 class_name BookDoor
 extends LockedDoor
 
diff --git a/game/doors/circle_door.gd b/game/doors/circle_door.gd
index 61db719..9957b84 100644
--- a/game/doors/circle_door.gd
+++ b/game/doors/circle_door.gd
@@ -1,3 +1,4 @@
+@tool
 class_name CircleDoor
 extends LockedDoor
 
diff --git a/game/doors/door.gd b/game/doors/door.gd
index 80f2e21..ff50dab 100644
--- a/game/doors/door.gd
+++ b/game/doors/door.gd
@@ -1,3 +1,4 @@
+@tool
 class_name Door
 extends Node2D
 
@@ -8,6 +9,13 @@ const ANIMATION_OPENING = "opening"
 const ANIMATION_CLOSING = "closing"
 
 
+@export var use_shader := true:
+	set(value):
+		use_shader = value
+		if is_node_ready():
+			_update_shader()
+
+
 var _needed_to_be_open := false
 var _needed_to_be_closed := false
 
@@ -19,6 +27,7 @@ var _needed_to_be_closed := false
 
 
 func _ready() -> void:
+	_update_shader()
 	sprite.play(ANIMATION_CLOSED)
 
 
@@ -50,6 +59,12 @@ func _close() -> void:
 	static_body.process_mode = Node.PROCESS_MODE_INHERIT
 
 
+func _update_shader() -> void:
+	var intensity := 0.5 if use_shader else 1.0
+	print(intensity)
+	sprite.material.set(CollisionSwitcher.SHADER_INTENSITY, intensity)
+
+
 func _on_animation_finished() -> void:
 	match sprite.animation:
 		ANIMATION_OPENING:
diff --git a/game/doors/door.tscn b/game/doors/door.tscn
index b9a41ad..697e7b9 100644
--- a/game/doors/door.tscn
+++ b/game/doors/door.tscn
@@ -1,4 +1,4 @@
-[gd_scene load_steps=15 format=3 uid="uid://b7mhdrj3b6loq"]
+[gd_scene format=3 uid="uid://b7mhdrj3b6loq"]
 
 [ext_resource type="Script" uid="uid://5uqub2a6701b" path="res://game/doors/door.gd" id="1_vx1od"]
 [ext_resource type="Material" uid="uid://dojhoc6ljpt1a" path="res://game/materials/walls_gray.tres" id="1_xelsh"]
@@ -48,7 +48,7 @@ animations = [{
 "duration": 1.0,
 "texture": SubResource("AtlasTexture_5nqrw")
 }],
-"loop": true,
+"loop": 1,
 "name": &"closed",
 "speed": 5.0
 }, {
@@ -62,7 +62,7 @@ animations = [{
 "duration": 1.0,
 "texture": SubResource("AtlasTexture_4vug2")
 }],
-"loop": false,
+"loop": 0,
 "name": &"closing",
 "speed": 10.0
 }, {
@@ -70,7 +70,7 @@ animations = [{
 "duration": 1.0,
 "texture": SubResource("AtlasTexture_ymlcn")
 }],
-"loop": true,
+"loop": 1,
 "name": &"open",
 "speed": 5.0
 }, {
@@ -84,34 +84,35 @@ animations = [{
 "duration": 1.0,
 "texture": SubResource("AtlasTexture_j83fq")
 }],
-"loop": false,
+"loop": 0,
 "name": &"opening",
 "speed": 10.0
 }]
 
-[node name="Door" type="Node2D"]
+[node name="Door" type="Node2D" unique_id=2006466960]
 script = ExtResource("1_vx1od")
 
-[node name="StaticBody2D" type="StaticBody2D" parent="."]
+[node name="StaticBody2D" type="StaticBody2D" parent="." unique_id=584436734]
 position = Vector2(-8.5, 0)
 
-[node name="StaticBodyCollision" type="CollisionShape2D" parent="StaticBody2D"]
+[node name="StaticBodyCollision" type="CollisionShape2D" parent="StaticBody2D" unique_id=193176175]
 unique_name_in_owner = true
 shape = SubResource("RectangleShape2D_cs8ri")
 
-[node name="Area2D" type="Area2D" parent="."]
+[node name="Area2D" type="Area2D" parent="." unique_id=371280403]
 position = Vector2(-8.5, 0)
 collision_layer = 0
 collision_mask = 136
 
-[node name="AreaCollision" type="CollisionShape2D" parent="Area2D"]
+[node name="AreaCollision" type="CollisionShape2D" parent="Area2D" unique_id=853891699]
 unique_name_in_owner = true
 shape = SubResource("RectangleShape2D_u7b5a")
 
-[node name="AnimatedSprite2D" type="AnimatedSprite2D" parent="."]
+[node name="AnimatedSprite2D" type="AnimatedSprite2D" parent="." unique_id=1718827818]
 material = ExtResource("1_xelsh")
 sprite_frames = SubResource("SpriteFrames_r8rhb")
 animation = &"closed"
+frame_progress = 0.61261725
 
 [connection signal="body_entered" from="Area2D" to="." method="_on_area_entered"]
 [connection signal="body_exited" from="Area2D" to="." method="_on_area_exited"]
diff --git a/game/doors/lever_door.gd b/game/doors/lever_door.gd
index 8e6293b..9834291 100644
--- a/game/doors/lever_door.gd
+++ b/game/doors/lever_door.gd
@@ -1,3 +1,4 @@
+@tool
 extends Door
 
 
diff --git a/game/doors/locked_door.gd b/game/doors/locked_door.gd
index 2772b0f..110eb78 100644
--- a/game/doors/locked_door.gd
+++ b/game/doors/locked_door.gd
@@ -1,3 +1,4 @@
+@tool
 class_name LockedDoor
 extends Door
 
diff --git a/game/doors/square_door.gd b/game/doors/square_door.gd
index daaf385..c9f6879 100644
--- a/game/doors/square_door.gd
+++ b/game/doors/square_door.gd
@@ -1,3 +1,4 @@
+@tool
 class_name SquareDoor
 extends LockedDoor
 
diff --git a/game/doors/triangle_door.gd b/game/doors/triangle_door.gd
index 0082acb..4c7364e 100644
--- a/game/doors/triangle_door.gd
+++ b/game/doors/triangle_door.gd
@@ -1,3 +1,4 @@
+@tool
 class_name TriagleDoor
 extends LockedDoor