Engineering and external airlocks.

Resources/Prototypes/Entities/Door.yml

@@ -17,8 +17,38 @@
     state: closed
 
   - type: BoundingBox
+    # This AABB isn't the full tile because..
+    # If it is, airlocks collide with walls and other airlocks causing them to never close.
+    # yeah...
+    # TODO: Fix that.
+    aabb: -0.45, -0.45, 0.45, 0.45
   - type: Collidable
   - type: Door
   - type: Appearance
     visuals:
     - type: AirlockVisualizer2D
+
+  placement:
+    mode: SnapgridBorder
+
+- type: entity
+  parent: airlock
+  id: airlock_external
+  name: External Airlock
+  components:
+  - type: Sprite
+    sprite: Buildings/airlock_external.rsi
+
+  - type: Icon
+    sprite: Buildings/airlock_external.rsi
+
+- type: entity
+  parent: airlock
+  id: airlock_engineering
+  name: Engineering Airlock
+  components:
+  - type: Sprite
+    sprite: Buildings/airlock_engineering.rsi
+
+  - type: Icon
+    sprite: Buildings/airlock_engineering.rsi