Resolves SmesVisualizer is Obsolete (#13899)

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

Content.Server/Power/SMES/SmesComponent.cs

@@ -1,16 +1,12 @@
 using Content.Server.Power.Components;
 using Content.Shared.Power;
-using Content.Shared.Rounding;
-using Content.Shared.SMES;
-using Robust.Server.GameObjects;
-using Robust.Shared.Timing;
 
 namespace Content.Server.Power.SMES;
 
 /// <summary>
 ///     Handles the "user-facing" side of the actual SMES object.
 ///     This is operations that are specific to the SMES, like UI and visuals.
-///     Logic is handled in <see cref="PowerSmesSystem"/>
+///     Logic is handled in <see cref="SmesSystem"/>
 ///     Code interfacing with the powernet is handled in <see cref="BatteryStorageComponent"/> and <see cref="BatteryDischargerComponent"/>.
 /// </summary>
 [RegisterComponent, Access(typeof(SmesSystem))]
@@ -26,4 +22,23 @@ public sealed class SmesComponent : Component
     public TimeSpan LastChargeLevelTime;
     [ViewVariables]
     public TimeSpan VisualsChangeDelay = TimeSpan.FromSeconds(1);
+
+    /// <summary>
+    /// The number of distinct charge levels a SMES has.
+    /// 0 is empty max is full.
+    /// </summary>
+    [DataField("numChargeLevels")]
+    public int NumChargeLevels = 6;
+
+    /// <summary>
+    /// The charge level of the SMES as of the most recent update.
+    /// </summary>
+    [ViewVariables]
+    public int ChargeLevel = 0;
+
+    /// <summary>
+    /// Whether the SMES is being charged/discharged/neither.
+    /// </summary>
+    [ViewVariables]
+    public ChargeState ChargeState = ChargeState.Still;
 }