door between segements are placed and rotated correctly :3

assets/door.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://cay1k1dp8yf12"
+path="res://.godot/imported/door.png-b71998044d513d047c9b0091ee4a07ff.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://assets/door.png"
+dest_files=["res://.godot/imported/door.png-b71998044d513d047c9b0091ee4a07ff.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1

prefabs/door.gd

@@ -0,0 +1,23 @@
+extends Node2D
+
+@export var this_seg : Node2D
+@export var prev_seg : Node2D
+
+# Called when the node enters the scene tree for the first time.
+func _ready() -> void:
+	pass # Replace with function body.
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta: float) -> void:
+	if this_seg and prev_seg:
+		show() # would also need to enable/disable
+		look_at(prev_seg.position)
+		#position = curve.get_closest_point(lerp(this_seg.position,prev_seg.position,0.5))
+		
+		#global_position = lerp(this_seg.global_position,next_seg.global_position,0.5)
+	else:
+		hide()
+
+
+# rotate arm towards next seg

prefabs/door.gd.uid

@@ -0,0 +1 @@
+uid://be6ituviy74ta

prefabs/snake_segment.gd

@@ -6,6 +6,7 @@ var direction : Vector2 = Vector2.RIGHT
 var want_direction : Vector2 = Vector2.RIGHT
 
 @export var next_segment : Node2D
+@export var door : Node2D
 var start_pos : Vector2
 var target_pos : Vector2
 var move_progress : float

prefabs/snake_segment.tscn

@@ -1,11 +1,17 @@
-[gd_scene load_steps=4 format=3 uid="uid://bwoeu7ask0fck"]
+[gd_scene load_steps=7 format=3 uid="uid://bwoeu7ask0fck"]
 
 [ext_resource type="Script" uid="uid://b5cqo12km1nh3" path="res://prefabs/snake_segment.gd" id="1_3ulhv"]
 [ext_resource type="Texture2D" uid="uid://l8x3dp68yyxr" path="res://assets/segement.png" id="1_6uqch"]
 [ext_resource type="Script" uid="uid://deq18nev0kwbg" path="res://addons/godot-donut-collision-polygon-2d-7780d026ae3d4a37fe68f43cc1f97ba664dd775d/addons/donut_collision_polygon2D/donut_collision_polygon2D.gd" id="2_3ulhv"]
+[ext_resource type="Script" uid="uid://be6ituviy74ta" path="res://prefabs/door.gd" id="4_08kyq"]
+[ext_resource type="Texture2D" uid="uid://cay1k1dp8yf12" path="res://assets/door.png" id="4_34t3n"]
 
-[node name="SnakeSegment" type="AnimatableBody2D"]
+[sub_resource type="RectangleShape2D" id="RectangleShape2D_08kyq"]
+size = Vector2(24, 64)
+
+[node name="SnakeSegment" type="AnimatableBody2D" node_paths=PackedStringArray("door")]
 script = ExtResource("1_3ulhv")
+door = NodePath("DoorArm")
 
 [node name="Sprite2D" type="Sprite2D" parent="."]
 texture = ExtResource("1_6uqch")
@@ -15,3 +21,29 @@ polygon = PackedVector2Array(9.85808e-15, -161, 31.4095, -157.906, 61.612, -148.
 script = ExtResource("2_3ulhv")
 radius = 160.0
 metadata/_custom_type_script = "uid://deq18nev0kwbg"
+
+[node name="DoorArm" type="Node2D" parent="." node_paths=PackedStringArray("this_seg")]
+script = ExtResource("4_08kyq")
+this_seg = NodePath("..")
+
+[node name="Door" type="Node2D" parent="DoorArm"]
+position = Vector2(160, 0)
+scale = Vector2(1, 1)
+
+[node name="DoorIn" type="Area2D" parent="DoorArm/Door"]
+position = Vector2(-16, 0)
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="DoorArm/Door/DoorIn"]
+position = Vector2(32, 0)
+shape = SubResource("RectangleShape2D_08kyq")
+
+[node name="DoorOut" type="Area2D" parent="DoorArm/Door"]
+position = Vector2(16, 0)
+rotation = 3.14159
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="DoorArm/Door/DoorOut"]
+position = Vector2(32, 0)
+shape = SubResource("RectangleShape2D_08kyq")
+
+[node name="Sprite2D" type="Sprite2D" parent="DoorArm/Door"]
+texture = ExtResource("4_34t3n")

snakeManager.gd

@@ -12,8 +12,11 @@ func _ready() -> void:
 	for i in segements.size():
 		if i == 0:
 			segements[i].is_head = true
+			
 		else:
 			segements[i].next_segment = segements[i-1]
+		if i < segements.size()-1:
+				segements[i].door.prev_seg = segements[i+1]
 		segements[i].snake_speed = SNAKE_SPEED
 		#segements[i].z_index = 100-i
 	activate_segment(0)