Allow t-ray to penetrate carpets and puddles (#25276)

* Allow t-ray to penetrate carpets and puddles

* handle edge cases

Content.Shared/SubFloor/SubFloorHideComponent.cs

@@ -45,5 +45,12 @@ namespace Content.Shared.SubFloor
         /// </summary>
         [DataField("visibleLayers")]
         public HashSet<Enum> VisibleLayers = new() { SubfloorLayers.FirstLayer };
+
+        /// <summary>
+        /// This is used for storing the original draw depth of a t-ray revealed entity.
+        /// e.g. when a t-ray revealed cable is drawn above a carpet.
+        /// </summary>
+        [DataField]
+        public int? OriginalDrawDepth;
     }
 }