Resolves PowerChargerVisualizer is Obsolete (#13901)

Co-authored-by: metalgearsloth <comedian_vs_clown@hotmail.com>

Content.Client/PowerCell/PowerChargerVisualizer.cs

@@ -1,79 +0,0 @@
-using Content.Shared.Power;
-using JetBrains.Annotations;
-using Robust.Client.GameObjects;
-using Robust.Shared.GameObjects;
-using Robust.Shared.IoC;
-
-namespace Content.Client.PowerCell
-{
-    [UsedImplicitly]
-    public sealed class PowerChargerVisualizer : AppearanceVisualizer
-    {
-        [Obsolete("Subscribe to your component being initialised instead.")]
-        public override void InitializeEntity(EntityUid entity)
-        {
-            base.InitializeEntity(entity);
-
-            var sprite = IoCManager.Resolve<IEntityManager>().GetComponent<SpriteComponent>(entity);
-
-            // Base item
-            sprite.LayerMapSet(Layers.Base, sprite.AddLayerState("empty"));
-
-            // Light
-            sprite.LayerMapSet(Layers.Light, sprite.AddLayerState("light-off"));
-            sprite.LayerSetShader(Layers.Light, "unshaded");
-        }
-
-        [Obsolete("Subscribe to AppearanceChangeEvent instead.")]
-        public override void OnChangeData(AppearanceComponent component)
-        {
-            base.OnChangeData(component);
-
-            var sprite = IoCManager.Resolve<IEntityManager>().GetComponent<SpriteComponent>(component.Owner);
-
-            // Update base item
-            if (component.TryGetData(CellVisual.Occupied, out bool occupied))
-            {
-                // TODO: don't throw if it doesn't have a full state
-                sprite.LayerSetState(Layers.Base, occupied ? "full" : "empty");
-            }
-            else
-            {
-                sprite.LayerSetState(Layers.Base, "empty");
-            }
-
-            // Update lighting
-            if (component.TryGetData(CellVisual.Light, out CellChargerStatus status))
-            {
-                switch (status)
-                {
-                    case CellChargerStatus.Off:
-                        sprite.LayerSetState(Layers.Light, "light-off");
-                        break;
-                    case CellChargerStatus.Empty:
-                        sprite.LayerSetState(Layers.Light, "light-empty");
-                        break;
-                    case CellChargerStatus.Charging:
-                        sprite.LayerSetState(Layers.Light, "light-charging");
-                        break;
-                    case CellChargerStatus.Charged:
-                        sprite.LayerSetState(Layers.Light, "light-charged");
-                        break;
-                    default:
-                        sprite.LayerSetState(Layers.Light, "light-off");
-                        break;
-                }
-            }
-            else
-            {
-                sprite.LayerSetState(Layers.Light, "light-off");
-            }
-        }
-
-        enum Layers : byte
-        {
-            Base,
-            Light,
-        }
-    }
-}

Content.Client/PowerCell/PowerChargerVisualizerComponent.cs

@@ -0,0 +1,39 @@
+using Content.Shared.Power;
+
+namespace Content.Client.PowerCell;
+
+[RegisterComponent]
+[Access(typeof(PowerChargerVisualizerSystem))]
+public sealed class PowerChargerVisualsComponent : Component
+{
+    /// <summary>
+    /// The base sprite state used if the power cell charger does not contain a power cell.
+    /// </summary>
+    [DataField("emptyState")]
+    [ViewVariables(VVAccess.ReadWrite)]
+    public string EmptyState = "empty";
+    
+    /// <summary>
+    /// The base sprite state used if the power cell charger contains a power cell.
+    /// </summary>
+    [DataField("occupiedState")]
+    [ViewVariables(VVAccess.ReadWrite)]
+    public string OccupiedState = "full";
+    
+    /// <summary>
+    /// A mapping of the indicator light overlays for the power cell charger.
+    /// <see cref="CellChargerStatus.Off"/> Maps to the state used when the charger is out of power/disabled.
+    /// <see cref="CellChargerStatus.Empty"/> Maps to the state used when the charger does not contain a power cell.
+    /// <see cref="CellChargerStatus.Charging"/> Maps to the state used when the charger is charging a power cell.
+    /// <see cref="CellChargerStatus.Charged"/> Maps to the state used when the charger contains a fully charged power cell.
+    /// </summary>
+    [DataField("lightStates")]
+    [ViewVariables(VVAccess.ReadWrite)]
+    public readonly Dictionary<CellChargerStatus, string> LightStates = new()
+    {
+        [CellChargerStatus.Off] = "light-off",
+        [CellChargerStatus.Empty] = "light-empty",
+        [CellChargerStatus.Charging] = "light-charging",
+        [CellChargerStatus.Charged] = "light-charged",
+    };
+}

Content.Client/PowerCell/PowerChargerVisualizerSystem.cs

@@ -0,0 +1,41 @@
+using Content.Shared.Power;
+using Robust.Client.GameObjects;
+
+namespace Content.Client.PowerCell;
+
+public sealed class PowerChargerVisualizerSystem : VisualizerSystem<PowerChargerVisualsComponent>
+{
+    protected override void OnAppearanceChange(EntityUid uid, PowerChargerVisualsComponent comp, ref AppearanceChangeEvent args)
+    {
+        if (args.Sprite == null)
+            return;
+
+        // Update base item
+        if (AppearanceSystem.TryGetData<bool>(uid, CellVisual.Occupied, out var occupied, args.Component) && occupied)
+        {
+            // TODO: don't throw if it doesn't have a full state
+            args.Sprite.LayerSetState(PowerChargerVisualLayers.Base, comp.OccupiedState);
+        }
+        else
+        {
+            args.Sprite.LayerSetState(PowerChargerVisualLayers.Base, comp.EmptyState);
+        }
+
+        // Update lighting
+        if (AppearanceSystem.TryGetData<CellChargerStatus>(uid, CellVisual.Light, out var status, args.Component)
+        &&  comp.LightStates.TryGetValue(status, out var lightState))
+        {
+            args.Sprite.LayerSetState(PowerChargerVisualLayers.Light, lightState);
+            args.Sprite.LayerSetVisible(PowerChargerVisualLayers.Light, true);
+        }
+        else
+            // 
+            args.Sprite.LayerSetVisible(PowerChargerVisualLayers.Light, false);
+    }
+}
+
+enum PowerChargerVisualLayers : byte
+{
+    Base,
+    Light,
+}

Resources/Prototypes/Entities/Structures/Power/chargers.yml

@@ -11,13 +11,18 @@
     sprite: Structures/Power/cell_recharger.rsi
     drawdepth: SmallObjects
     snapCardinals: true
+    layers:
+    - map: ["enum.PowerChargerVisualLayers.Base"]
+      state: "empty"
+    - map: ["enum.PowerChargerVisualLayers.Light"]
+      state: "light-off"
+      shader: "unshaded"
   - type: Charger
     slotId: charger_slot
   - type: ApcPowerReceiver
   - type: ExtensionCableReceiver
   - type: Appearance
-    visuals:
+  - type: PowerChargerVisuals
-    - type: PowerChargerVisualizer
   - type: Anchorable
   - type: Pullable
   - type: Clickable