Added locked barriers and a new ghost enemy

Levels/Interactables/Silver Barrier.gd

@@ -0,0 +1,23 @@
+extends StaticBody2D
+
+export var alignment: String = 'V'
+
+
+func _ready() -> void:
+    if not alignment in ['V', 'H']:
+        print('Silver Barrier rotation needs to be "V" or "H"')
+    elif alignment == 'H':
+        rotation_degrees = 90
+    return
+
+
+func _on_unlock_body_entered(body: Node) -> void:
+    if not 'player' in body.get_groups():
+        return
+
+    if body.has_item('Silver Key'):
+        body.remove_item('Silver Key')
+        $Sprite.animation = 'open'
+        $Collision.set_deferred('disabled', true)
+        $Unlock.set_deferred('monitoring', false)
+    return

Levels/Interactables/Silver Barrier.tscn

@@ -0,0 +1,51 @@
+[gd_scene load_steps=7 format=2]
+
+[ext_resource path="res://Sprites/Levels/Interactables/Silver_Barrier_Open.png" type="Texture" id=1]
+[ext_resource path="res://Sprites/Levels/Interactables/Silver_Barrier_Closed.png" type="Texture" id=2]
+[ext_resource path="res://Levels/Interactables/Silver Barrier.gd" type="Script" id=3]
+
+[sub_resource type="SpriteFrames" id=1]
+animations = [ {
+"frames": [ ExtResource( 1 ) ],
+"loop": true,
+"name": "open",
+"speed": 5.0
+}, {
+"frames": [ ExtResource( 2 ) ],
+"loop": true,
+"name": "closed",
+"speed": 5.0
+} ]
+
+[sub_resource type="RectangleShape2D" id=2]
+extents = Vector2( 6, 8 )
+
+[sub_resource type="RectangleShape2D" id=3]
+extents = Vector2( 12, 10 )
+
+[node name="Silver Barrier" type="StaticBody2D"]
+collision_mask = 0
+script = ExtResource( 3 )
+
+[node name="Sprite" type="AnimatedSprite" parent="."]
+light_mask = 8
+frames = SubResource( 1 )
+animation = "closed"
+
+[node name="Collision" type="CollisionShape2D" parent="."]
+light_mask = 0
+shape = SubResource( 2 )
+
+[node name="Unlock" type="Area2D" parent="."]
+light_mask = 0
+collision_layer = 0
+collision_mask = 2
+input_pickable = false
+monitorable = false
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="Unlock"]
+visible = false
+light_mask = 0
+shape = SubResource( 3 )
+
+[connection signal="body_entered" from="Unlock" to="." method="_on_unlock_body_entered"]