Pointing arrow changes (#11097)

Content.Shared/Pointing/SharedPointingSystem.cs

@@ -0,0 +1,17 @@
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.Pointing;
+
+public abstract class SharedPointingSystem : EntitySystem
+{
+    [Serializable, NetSerializable]
+    protected sealed class PointingArrowComponentState : ComponentState
+    {
+        public TimeSpan EndTime;
+
+        public PointingArrowComponentState(TimeSpan endTime)
+        {
+            EndTime = endTime;
+        }
+    }
+}