Port wires/maintenance panel visualizer (#10543)

Content.Client/Wires/Visualizers/WiresVisualizer.cs

@@ -1,31 +0,0 @@
-using Content.Shared.Wires;
-using Robust.Client.GameObjects;
-using Robust.Shared.GameObjects;
-using Robust.Shared.IoC;
-
-namespace Content.Client.Wires.Visualizers
-{
-    public sealed class WiresVisualizer : AppearanceVisualizer
-    {
-        [Obsolete("Subscribe to AppearanceChangeEvent instead.")]
-        public override void OnChangeData(AppearanceComponent component)
-        {
-            base.OnChangeData(component);
-            var sprite = IoCManager.Resolve<IEntityManager>().GetComponent<ISpriteComponent>(component.Owner);
-            if (component.TryGetData<bool>(WiresVisuals.MaintenancePanelState, out var state))
-            {
-                sprite.LayerSetVisible(WiresVisualLayers.MaintenancePanel, state);
-            }
-            // Mainly for spawn window
-            else
-            {
-                sprite.LayerSetVisible(WiresVisualLayers.MaintenancePanel, false);
-            }
-        }
-
-        public enum WiresVisualLayers : byte
-        {
-            MaintenancePanel,
-        }
-    }
-}

Content.Client/Wires/Visualizers/WiresVisualizerSystem.cs

@@ -0,0 +1,32 @@
+using Content.Shared.Wires;
+using Robust.Client.GameObjects;
+
+namespace Content.Client.Wires.Visualizers
+{
+    public sealed class WiresVisualizerSystem : VisualizerSystem<WiresVisualsComponent>
+    {
+        protected override void OnAppearanceChange(EntityUid uid, WiresVisualsComponent component, ref AppearanceChangeEvent args)
+        {
+            if (args.Sprite == null)
+                return;
+
+            var layer = args.Sprite.LayerMapReserveBlank(WiresVisualLayers.MaintenancePanel);
+
+            if(args.AppearanceData.TryGetValue(WiresVisuals.MaintenancePanelState, out var panelStateObject) &&
+                panelStateObject is bool panelState)
+            {
+                args.Sprite.LayerSetVisible(layer, panelState);
+            }
+            else
+            {
+                //Mainly for spawn window
+                args.Sprite.LayerSetVisible(layer, false);
+            }
+        }
+    }
+
+    public enum WiresVisualLayers : byte
+    {
+        MaintenancePanel
+    }
+}