Substation Maintenance (take 3)

Content.Client/Power/Substation/SubstationVisualsComponent.cs

@@ -0,0 +1,13 @@
+using Content.Shared.Power;
+
+namespace Content.Client.Power.Substation;
+
+[RegisterComponent]
+public sealed partial class SubstationVisualsComponent : Component
+{
+    [DataField("screenLayer")]
+    public string LayerMap { get; private set; } = string.Empty;
+
+    [DataField]
+    public Dictionary<SubstationIntegrityState, string> IntegrityStates = new();
+}

Content.Client/Power/Substation/SubstationVisualsSystem.cs

@@ -0,0 +1,22 @@
+using Robust.Shared.GameObjects;
+using Robust.Client.GameObjects;
+using Robust.Client.Graphics;
+using Content.Shared.Power;
+
+namespace Content.Client.Power.Substation;
+
+public sealed class SubstationVisualsSystem : VisualizerSystem<SubstationVisualsComponent>
+{
+    protected override void OnAppearanceChange(EntityUid uid, SubstationVisualsComponent component, ref AppearanceChangeEvent args)
+    {
+        if(args.Sprite == null || !args.Sprite.LayerMapTryGet(component.LayerMap, out var layer))
+            return;
+
+        if(args.AppearanceData.TryGetValue(SubstationVisuals.Screen, out var stateObject)
+            && stateObject is SubstationIntegrityState
+            && component.IntegrityStates.TryGetValue((SubstationIntegrityState)stateObject, out var state))
+        {
+            args.Sprite.LayerSetState(layer, new RSI.StateId(state));
+        }
+    }
+}

Content.Server/Construction/ConstructionSystem.Machine.cs

@@ -72,4 +72,10 @@ private void CreateBoardAndStockParts(EntityUid uid, MachineComponent component)
             }
         }
     }
+        public void AddMaxUpgrade(string upgradedLocId)
+    {
+        var upgraded = Loc.GetString(upgradedLocId);
+        this.Message.AddMarkup(Loc.GetString("machine-upgrade-max-upgrade", ("upgraded", upgraded)) + '\n');
+    }
+
 }