Init enter game

GameServer/Server/Packet/HandlerManager.cs

@@ -0,0 +1,31 @@
+using System.Reflection;
+
+namespace KianaBH.GameServer.Server.Packet;
+
+public static class HandlerManager
+{
+    public static Dictionary<int, Handler> handlers = [];
+
+    public static void Init()
+    {
+        var classes = Assembly.GetExecutingAssembly().GetTypes(); // Get all classes in the assembly
+        foreach (var cls in classes)
+        {
+            var attribute = (Opcode?)Attribute.GetCustomAttribute(cls, typeof(Opcode));
+
+            if (attribute != null) handlers.Add(attribute.CmdId, (Handler)Activator.CreateInstance(cls)!);
+        }
+    }
+
+    public static Handler? GetHandler(int cmdId)
+    {
+        try
+        {
+            return handlers[cmdId];
+        }
+        catch
+        {
+            return null;
+        }
+    }
+}