Vision filter accessibility option

Content.Client/DeltaV/Options/UI/Tabs/DeltaTab.xaml

@@ -0,0 +1,23 @@
+<tabs:DeltaTab xmlns="https://spacestation14.io"
+                  xmlns:controls="clr-namespace:Content.Client.UserInterface.Controls"
+                  xmlns:tabs="clr-namespace:Content.Client.DeltaV.Options.UI.Tabs"
+                  xmlns:xNamespace="http://schemas.microsoft.com/winfx/2006/xaml"
+                  xmlns:s="clr-namespace:Content.Client.Stylesheets">
+    <BoxContainer Orientation="Vertical">
+        <BoxContainer Orientation="Vertical" Margin="8 8 8 8" VerticalExpand="True">
+            <Label Text="{Loc 'ui-options-general-forknotice'}"
+                   FontColorOverride="{xNamespace:Static s:StyleNano.ConcerningOrangeFore}"
+                   StyleClasses="LabelKeyText"/>
+            <Label Text="{Loc 'ui-options-general-accessibility'}"
+                   FontColorOverride="{xNamespace:Static s:StyleNano.NanoGold}"
+                   StyleClasses="LabelKeyText"/>
+            <CheckBox Name="DisableFiltersCheckBox" Text="{Loc 'ui-options-no-filters'}" />
+        </BoxContainer>
+        <controls:StripeBack HasBottomEdge="False" HasMargins="False">
+            <Button Name="ApplyButton"
+                    Text="{Loc 'ui-options-apply'}"
+                    TextAlign="Center"
+                    HorizontalAlignment="Right" />
+        </controls:StripeBack>
+    </BoxContainer>
+</tabs:DeltaTab>

Content.Client/DeltaV/Options/UI/Tabs/DeltaTab.xaml.cs

@@ -0,0 +1,46 @@
+using Content.Shared.DeltaV.CCVars;
+using Robust.Client.AutoGenerated;
+using Robust.Client.UserInterface;
+using Robust.Client.UserInterface.Controls;
+using Robust.Client.UserInterface.XAML;
+using Robust.Shared.Configuration;
+
+namespace Content.Client.DeltaV.Options.UI.Tabs;
+
+[GenerateTypedNameReferences]
+public sealed partial class DeltaTab : Control
+{
+    [Dependency] private readonly IConfigurationManager _cfg = default!;
+
+    public DeltaTab()
+    {
+        RobustXamlLoader.Load(this);
+        IoCManager.InjectDependencies(this);
+
+        DisableFiltersCheckBox.OnToggled += OnCheckBoxToggled;
+        DisableFiltersCheckBox.Pressed = _cfg.GetCVar(DCCVars.NoVisionFilters);
+
+        ApplyButton.OnPressed += OnApplyButtonPressed;
+        UpdateApplyButton();
+    }
+
+    private void OnCheckBoxToggled(BaseButton.ButtonToggledEventArgs args)
+    {
+        UpdateApplyButton();
+    }
+
+    private void OnApplyButtonPressed(BaseButton.ButtonEventArgs args)
+    {
+        _cfg.SetCVar(DCCVars.NoVisionFilters, DisableFiltersCheckBox.Pressed);
+
+        _cfg.SaveToFile();
+        UpdateApplyButton();
+    }
+
+    private void UpdateApplyButton()
+    {
+        var isNoVisionFiltersSame = DisableFiltersCheckBox.Pressed == _cfg.GetCVar(DCCVars.NoVisionFilters);
+
+        ApplyButton.Disabled = isNoVisionFiltersSame;
+    }
+}

Content.Client/DeltaV/Overlays/UltraVisionSystem.cs

@@ -1,11 +1,14 @@
 using Content.Shared.Abilities;
+using Content.Shared.DeltaV.CCVars;
 using Robust.Client.Graphics;
+using Robust.Shared.Configuration;
 
 namespace Content.Client.DeltaV.Overlays;
 
 public sealed partial class UltraVisionSystem : EntitySystem
 {
     [Dependency] private readonly IOverlayManager _overlayMan = default!;
+    [Dependency] private readonly IConfigurationManager _cfg = default!;
 
     private UltraVisionOverlay _overlay = default!;
 
@@ -16,16 +19,27 @@ public override void Initialize()
         SubscribeLocalEvent<UltraVisionComponent, ComponentInit>(OnUltraVisionInit);
         SubscribeLocalEvent<UltraVisionComponent, ComponentShutdown>(OnUltraVisionShutdown);
 
+        Subs.CVar(_cfg, DCCVars.NoVisionFilters, OnNoVisionFiltersChanged);
+
         _overlay = new();
     }
 
     private void OnUltraVisionInit(EntityUid uid, UltraVisionComponent component, ComponentInit args)
     {
-        _overlayMan.AddOverlay(_overlay);
+        if (!_cfg.GetCVar(DCCVars.NoVisionFilters))
+            _overlayMan.AddOverlay(_overlay);
     }
 
     private void OnUltraVisionShutdown(EntityUid uid, UltraVisionComponent component, ComponentShutdown args)
     {
         _overlayMan.RemoveOverlay(_overlay);
     }
+
+    private void OnNoVisionFiltersChanged(bool enabled)
+    {
+        if (enabled)
+            _overlayMan.RemoveOverlay(_overlay);
+        else
+            _overlayMan.AddOverlay(_overlay);
+    }
 }

Content.Client/Nyanotrasen/Overlays/DogVisionSystem.cs

@@ -1,11 +1,14 @@
 using Content.Shared.Abilities;
+using Content.Shared.DeltaV.CCVars;
 using Robust.Client.Graphics;
+using Robust.Shared.Configuration;
 
 namespace Content.Client.Nyanotrasen.Overlays;
 
 public sealed partial class DogVisionSystem : EntitySystem
 {
     [Dependency] private readonly IOverlayManager _overlayMan = default!;
+    [Dependency] private readonly IConfigurationManager _cfg = default!;
 
     private DogVisionOverlay _overlay = default!;
 
@@ -16,16 +19,27 @@ public override void Initialize()
         SubscribeLocalEvent<DogVisionComponent, ComponentInit>(OnDogVisionInit);
         SubscribeLocalEvent<DogVisionComponent, ComponentShutdown>(OnDogVisionShutdown);
 
+        Subs.CVar(_cfg, DCCVars.NoVisionFilters, OnNoVisionFiltersChanged);
+
         _overlay = new();
     }
 
     private void OnDogVisionInit(EntityUid uid, DogVisionComponent component, ComponentInit args)
     {
-        _overlayMan.AddOverlay(_overlay);
+        if (!_cfg.GetCVar(DCCVars.NoVisionFilters))
+            _overlayMan.AddOverlay(_overlay);
     }
 
     private void OnDogVisionShutdown(EntityUid uid, DogVisionComponent component, ComponentShutdown args)
     {
         _overlayMan.RemoveOverlay(_overlay);
     }
+
+    private void OnNoVisionFiltersChanged(bool enabled)
+    {
+        if (enabled)
+            _overlayMan.RemoveOverlay(_overlay);
+        else
+            _overlayMan.AddOverlay(_overlay);
+    }
 }

Content.Client/Options/UI/OptionsMenu.xaml

@@ -1,5 +1,6 @@
 <DefaultWindow xmlns="https://spacestation14.io"
             xmlns:tabs="clr-namespace:Content.Client.Options.UI.Tabs"
+            xmlns:dtabs="clr-namespace:Content.Client.DeltaV.Options.UI.Tabs"
             Title="{Loc 'ui-options-title'}"
             MinSize="800 450">
     <TabContainer Name="Tabs" Access="Public">
@@ -8,5 +9,6 @@
         <tabs:KeyRebindTab Name="KeyRebindTab" />
         <tabs:AudioTab Name="AudioTab" />
         <tabs:NetworkTab Name="NetworkTab" />
+        <dtabs:DeltaTab Name="DeltaTab" />
     </TabContainer>
 </DefaultWindow>

Content.Client/Options/UI/OptionsMenu.xaml.cs

@@ -20,6 +20,7 @@ public OptionsMenu()
             Tabs.SetTabTitle(2, Loc.GetString("ui-options-tab-controls"));
             Tabs.SetTabTitle(3, Loc.GetString("ui-options-tab-audio"));
             Tabs.SetTabTitle(4, Loc.GetString("ui-options-tab-network"));
+            Tabs.SetTabTitle(5, Loc.GetString("ui-options-tab-deltav")); // DeltaV specific settings
 
             UpdateTabs();
         }

Content.Shared/DeltaV/CCVars/DCCVars.cs

@@ -15,4 +15,10 @@ public sealed class DCCVars
     /// </summary>
     public static readonly CVarDef<bool> RoundEndPacifist =
         CVarDef.Create("game.round_end_pacifist", false, CVar.SERVERONLY);
+
+    /// <summary>
+    /// Disables all vision filters for species like Vulpkanin or Harpies. There are good reasons someone might want to disable these.
+    /// </summary>
+    public static readonly CVarDef<bool> NoVisionFilters =
+        CVarDef.Create("accessibility.no_vision_filters", false, CVar.CLIENTONLY | CVar.ARCHIVE);
 }

Resources/Locale/en-US/deltav/escape-menu/options-menu.ftl

@@ -0,0 +1,4 @@
+ui-options-tab-deltav = DeltaV
+ui-options-general-forknotice = Note: These settings are fork-specific and might not apply on other servers.
+
+ui-options-no-filters = Disable species vision filters

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

@@ -9,8 +9,5 @@ trait-deuteranopia-name = Deuteranopia
 trait-deuteranopia-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
 trait-uncloneable-desc = Cannot be cloned

Resources/Prototypes/DeltaV/Traits/altvision.yml

@@ -11,10 +11,3 @@
   description: trait-deuteranopia-desc
   components:
     - type: DogVision
-
-- type: trait
-  id: DefaultVision
-  name: trait-defaultvision-name
-  description: trait-defaultvision-desc
-  components:
-    - type: DefaultVision