Initial import

Assets/Scripts/NetCode/ConnectionMonitorSystem.cs

@@ -0,0 +1,32 @@
+using Unity.Burst;
+using Unity.Collections;
+using Unity.Entities;
+using Unity.NetCode;
+
+namespace EE2Clone.NetCode
+{
+    /// <summary>
+    /// Server-side system that monitors for disconnected players and logs events.
+    /// </summary>
+    [WorldSystemFilter(WorldSystemFilterFlags.ServerSimulation)]
+    public partial struct ConnectionMonitorSystem : ISystem
+    {
+        public void OnCreate(ref SystemState state)
+        {
+            state.RequireForUpdate<NetworkId>();
+        }
+
+        public void OnUpdate(ref SystemState state)
+        {
+            // Count active connections for logging/debugging
+            int connectionCount = 0;
+            foreach (var _ in SystemAPI.Query<RefRO<NetworkId>>()
+                         .WithAll<NetworkStreamInGame>())
+            {
+                connectionCount++;
+            }
+
+            // Future: detect disconnections and handle AI takeover
+        }
+    }
+}