Toilet fixes (#9609)

Content.Client/Toilet/ToiletVisualsSystem.cs

@@ -0,0 +1,25 @@
+using Content.Shared.Toilet;
+using Robust.Client.GameObjects;
+
+namespace Content.Client.Toilet;
+
+public sealed class ToiletVisualsSystem : VisualizerSystem<ToiletComponent>
+{
+    protected override void OnAppearanceChange(EntityUid uid, ToiletComponent component, ref AppearanceChangeEvent args)
+    {
+        if (args.Sprite == null) return;
+
+        args.Component.TryGetData(ToiletVisuals.LidOpen, out bool lidOpen);
+        args.Component.TryGetData(ToiletVisuals.SeatUp, out bool seatUp);
+
+        var state = (lidOpen, seatUp) switch
+        {
+            (false, false) => "closed_toilet_seat_down",
+            (false, true) => "closed_toilet_seat_up",
+            (true, false) => "open_toilet_seat_down",
+            (true, true) => "open_toilet_seat_up"
+        };
+
+        args.Sprite.LayerSetState(0, state);
+    }
+}