Add kangaroos (#5829)

Resources/Prototypes/Entities/Mobs/NPCs/animals.yml

@@ -303,6 +303,43 @@
       crit: dead
       dead: dead
 
+- type: entity
+  name: kangaroo
+  parent: SimpleMobBase
+  id: MobKangaroo
+  description: A large marsupial herbivore. It has powerful hind legs, with nails that resemble long claws.
+  components:
+  - type: MovementSpeedModifier
+    baseWalkSpeed: 4
+    baseSprintSpeed: 7
+  - type: Sprite
+    drawdepth: Mobs
+    layers:
+      - map: ["enum.DamageStateVisualLayers.Base"]
+        state: kangaroo
+        sprite: Mobs/Animals/kangaroo.rsi
+  - type: Physics
+  - type: Fixtures
+    fixtures:
+      - shape:
+          !type:PhysShapeCircle
+          radius: 0.25
+        mass: 60
+        mask:
+          - Impassable
+          - MobImpassable #Bullets?!
+          - VaultImpassable
+          - SmallImpassable
+        layer:
+          - Opaque
+  - type: Appearance
+    visuals:
+      - type: DamageStateVisualizer
+        normal: kangaroo
+        # SKIPPY NO!
+        crit: kangaroo-dead
+        dead: kangaroo-dead
+
 - type: entity
   name: monkey
   id: MobMonkey