Make tinted windows toggleable

Content.Server/Light/Components/ToggleableOccluderComponent.cs

@@ -0,0 +1,29 @@
+using Content.Shared.DeviceLinking;
+using Robust.Shared.Prototypes;
+
+namespace Content.Server.Light.Components;
+
+/// <summary>
+///     Allows entities with OccluderComponent to toggle that component on and off.
+/// </summary>
+[RegisterComponent]
+public sealed partial class ToggleableOccluderComponent : Component
+{
+    /// <summary>
+    ///     Port for toggling occluding on.
+    /// </summary>
+    [DataField]
+    public ProtoId<SinkPortPrototype> OnPort = "On";
+
+    /// <summary>
+    ///     Port for toggling occluding off.
+    /// </summary>
+    [DataField]
+    public ProtoId<SinkPortPrototype> OffPort = "Off";
+
+    /// <summary>
+    ///     Port for toggling occluding.
+    /// </summary>
+    [DataField]
+    public ProtoId<SinkPortPrototype> TogglePort = "Toggle";
+}

Content.Server/Light/EntitySystems/ToggleableOccluderSystem.cs

@@ -0,0 +1,56 @@
+using Content.Server.DeviceLinking.Events;
+using Content.Server.DeviceLinking.Systems;
+using Content.Server.Light.Components;
+
+namespace Content.Server.Light.EntitySystems;
+
+/// <summary>
+///     Handles the logic between signals and toggling OccluderComponent
+/// </summary>
+public sealed class ToggleableOccluderSystem : EntitySystem
+{
+    [Dependency] private readonly DeviceLinkSystem _signalSystem = default!;
+    [Dependency] private readonly OccluderSystem _occluder = default!;
+
+    public override void Initialize()
+    {
+        base.Initialize();
+        SubscribeLocalEvent<ToggleableOccluderComponent, SignalReceivedEvent>(OnSignalReceived);
+        SubscribeLocalEvent<ToggleableOccluderComponent, ComponentInit>(OnInit);
+    }
+
+    private void OnInit(EntityUid uid, ToggleableOccluderComponent comp, ComponentInit args)
+    {
+        _signalSystem.EnsureSinkPorts(uid, comp.OnPort, comp.OffPort, comp.TogglePort);
+    }
+
+    private void OnSignalReceived(EntityUid uid, ToggleableOccluderComponent comp, ref SignalReceivedEvent args)
+    {
+        if (!TryComp<OccluderComponent>(uid, out var occluder))
+            return;
+
+        if (args.Port == comp.OffPort)
+            SetState(uid, false, occluder);
+        else if (args.Port == comp.OnPort)
+            SetState(uid, true, occluder);
+        else if (args.Port == comp.TogglePort)
+            ToggleState(uid, occluder);
+    }
+
+    public void ToggleState(EntityUid uid, OccluderComponent? occluder = null)
+    {
+        if (!Resolve(uid, ref occluder))
+            return;
+
+        _occluder.SetEnabled(uid, !occluder.Enabled);
+    }
+
+    public void SetState(EntityUid uid, bool state, OccluderComponent? occluder = null)
+    {
+        if (!Resolve(uid, ref occluder))
+            return;
+
+        _occluder.SetEnabled(uid, state);
+    }
+
+}

Resources/Prototypes/Entities/Structures/Windows/window.yml

@@ -97,6 +97,7 @@
   parent: Window
   id: TintedWindow
   name: tinted window
+  description: Smart tinted window with state switching option.
   components:
   - type: Sprite
     drawdepth: WallTops
@@ -111,6 +112,20 @@
   - type: Occluder
   - type: StaticPrice
     price: 70
+  - type: ToggleableOccluder
+  - type: DeviceLinkSink
+    ports:
+    - On
+    - Off
+    - Toggle
+
+- type: entity
+  parent: TintedWindow
+  id: TintedWindowTransparent
+  suffix: Transparent
+  components:
+  - type: Occluder
+    enabled: false
 
 - type: entity
   id: WindowRCDResistant