Everyone loves dog vision

Updated to match the the harpy code

Content.Client/Nyanotrasen/Overlays/DogVisionSystem.cs

@@ -1,13 +1,10 @@
 using Content.Shared.Abilities;
-using Robust.Client.GameObjects;
 using Robust.Client.Graphics;
-using Robust.Client.Player;
 
 namespace Content.Client.Nyanotrasen.Overlays;
 
 public sealed partial class DogVisionSystem : EntitySystem
 {
-    [Dependency] private readonly IPlayerManager _player = default!;
     [Dependency] private readonly IOverlayManager _overlayMan = default!;
 
     private DogVisionOverlay _overlay = default!;
@@ -19,28 +16,16 @@ public override void Initialize()
         SubscribeLocalEvent<DogVisionComponent, ComponentInit>(OnDogVisionInit);
         SubscribeLocalEvent<DogVisionComponent, ComponentShutdown>(OnDogVisionShutdown);
 
-        _player.LocalPlayerAttached += OnAttachedChanged;
-        _player.LocalPlayerDetached += OnAttachedChanged;
-
         _overlay = new();
     }
 
-    private void OnAttachedChanged(EntityUid uid)
-    {
-        _overlayMan.AddOverlay(_overlay);
-    }
-
     private void OnDogVisionInit(EntityUid uid, DogVisionComponent component, ComponentInit args)
     {
-        if (_player.LocalPlayer?.ControlledEntity == uid)
-            _overlayMan.AddOverlay(_overlay);
+        _overlayMan.AddOverlay(_overlay);
     }
 
     private void OnDogVisionShutdown(EntityUid uid, DogVisionComponent component, ComponentShutdown args)
     {
-        if (_player.LocalPlayer?.ControlledEntity == uid)
-        {
-            _overlayMan.RemoveOverlay(_overlay);
-        }
+        _overlayMan.RemoveOverlay(_overlay);
     }
 }

Content.Shared/DeltaV/Abilities/DefaultVisionSystem.cs

@@ -15,5 +15,6 @@ public override void Initialize()
     private void OnDefaultVisionInit(EntityUid uid, DefaultVisionComponent component, ComponentInit args)
     {
         RemComp<UltraVisionComponent>(uid);
+        RemComp<DogVisionComponent>(uid);
     }
 }

Resources/Locale/en-US/deltav/traits/traits.ftl

@@ -1,8 +1,15 @@
 trait-scottish-accent-name = Scottish Accent
 trait-scottish-accent-desc = Fer tha folk who come frae Hielan clan.
+
+trait-ultravision-name = Ultraviolet Vision
 trait-ultravision-desc = Whether through custom bionic eyes, random mutation,
                          or being a Harpy, you perceive the world with ultraviolet light.
 
+trait-dogvision-name = Deuteranopia
+trait-dogvision-desc = Whether through custom bionic eyes, random mutation,
+                       or being a Vulpkanin, you have red–green colour blindness.
+
+trait-defaultvision-name = Normal Vision
 trait-defaultvision-desc = You lack any vision variation from the norm for a non-human species.
 
 trait-uncloneable-name = Uncloneable

Resources/Prototypes/DeltaV/Entities/Mobs/Species/vulpkanin.yml

@@ -96,6 +96,7 @@
       Male: MaleVulpkanin
       Female: FemaleVulpkanin
       Unsexed: MaleVulpkanin
+  - type: DogVision
 
 - type: entity
   save: false

Resources/Prototypes/DeltaV/Traits/altvision.yml

@@ -1,13 +1,20 @@
 - type: trait
   id: UltraVision
-  name: Ultraviolet Vision
+  name: trait-ultravision-name
   description: trait-ultravision-desc
   components:
     - type: UltraVision
 
+- type: trait
+  id: DogVision
+  name: trait-dogvision-name
+  description: trait-dogvision-desc
+  components:
+    - type: DogVision
+
 - type: trait
   id: DefaultVision
-  name: Normal Vision
+  name: trait-defaultvision-name
   description: trait-defaultvision-desc
   components:
     - type: DefaultVision