Added decelerator percentage drain (#35643)

* Added variable PercentageDrain to SinguloFoodComponent

* Set percentageDrain to 0.03 (3%) for anti particles

* Added percentageDrain logic in public OnConsumed

* Simplify SinguloFoodComponent and set percentageDrain to negative

* EnergyFactor now applies to positive values too

* Better commenting on EnergyFactor

* Update Content.Server/Singularity/Components/SinguloFoodComponent.cs

* Documentation of EnergyFactor

* Fixing spelling mistake

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Co-authored-by: slarticodefast <161409025+slarticodefast@users.noreply.github.com>

Content.Server/Singularity/Components/SinguloFoodComponent.cs

@@ -6,8 +6,20 @@ namespace Content.Server.Singularity.Components
     [RegisterComponent]
     public sealed partial class SinguloFoodComponent : Component
     {
-        [ViewVariables(VVAccess.ReadWrite)]
-        [DataField("energy")]
-        public float Energy { get; set; } = 1f;
+        /// <summary>
+        /// Flat adjustment to the singularity's energy when this entity is eaten by the event horizon.
+        /// </summary>
+        [DataField]
+        public float Energy = 1f;
+
+        /// <summary>
+        /// Multiplier applied to singularity's energy.
+        /// 1.0 = no change, 0.97 = 3% reduction, 1.05 = 5% increase
+        /// </summary>
+        /// /// <remarks>
+        /// This is calculated using the singularity's energy level before <see cref="Energy"/> has been added.
+        /// </remarks>
+        [DataField]
+        public float EnergyFactor = 1f;
     }
 }