Fix build harder.

Content.Server/GameObjects/Components/Power/SmesComponent.cs

@@ -0,0 +1,53 @@
+using System;
+using Content.Shared.GameObjects.Components.Power;
+using Content.Shared.Utility;
+using SS14.Server.GameObjects;
+using SS14.Shared.GameObjects;
+
+namespace Content.Server.GameObjects.Components.Power
+{
+    /// <summary>
+    ///     Handles the "user-facing" side of the actual SMES object.
+    ///     This is operations that are specific to the SMES, like UI and visuals.
+    ///     Code interfacing with the powernet is handled in <see cref="PowerStorageComponent" />.
+    /// </summary>
+    public class SmesComponent : Component
+    {
+        public override string Name => "Smes";
+
+        PowerStorageComponent Storage;
+        AppearanceComponent Appearance;
+
+        int LastChargeLevel = 0;
+        ChargeState LastChargeState;
+
+        public override void Initialize()
+        {
+            base.Initialize();
+            Storage = Owner.GetComponent<PowerStorageComponent>();
+            Appearance = Owner.GetComponent<AppearanceComponent>();
+        }
+
+        public void OnUpdate()
+        {
+            var newLevel = CalcChargeLevel();
+            if (newLevel != LastChargeLevel)
+            {
+                LastChargeLevel = newLevel;
+                Appearance.SetData(SmesVisuals.LastChargeLevel, newLevel);
+            }
+
+            var newState = Storage.GetChargeState();
+            if (newState != LastChargeState)
+            {
+                LastChargeState = newState;
+                Appearance.SetData(SmesVisuals.LastChargeState, newState);
+            }
+        }
+
+        int CalcChargeLevel()
+        {
+            return ContentHelpers.RoundToLevels(Storage.Charge, Storage.Capacity, 6);
+        }
+    }
+}