CLre/CLre/API/Tools/NetClientListener.cs

using System.Reflection;
using GameNetworkLayer.Shared;
using HarmonyLib;

namespace CLre.API.Tools
{
    public class NetClientListener
    {
        internal static bool isEnabled = false;

        public static void Enable()
        {
            isEnabled = true;
        }
        
        public static void Disable()
        {
            isEnabled = false;
        }
    }

    [HarmonyPatch]
    class NetMessageClientListener_HandleAllMessages_Patch
    {
        [HarmonyPrefix]
        public static void BeforeMethodCall(object ____deserializer, int playerId, object value)
        {
            if (!NetClientListener.isEnabled) return;
            // TODO optimize this to not use Traverse
            Traverse result = Traverse.Create(____deserializer).Method("Deserialize", value);
            NetworkDispatcherCode code = result.Field<NetworkDispatcherCode>("dispatcherCode").Value;
            byte[] data = result.Field<byte[]>("bytes").Value;
            if (data == null)
            {
                Utility.Logging.LogWarning("Network message data was deserialized as null");
                return;
            }
            Utility.Logging.Log($"Received network message for player {playerId} (code: {code.ToString()}, len: {data.Length})");
        }
        
        [HarmonyTargetMethod]
        public static MethodBase Target()
        {
            return AccessTools.Method("GameNetworkLayer.Client.NetMessageClientListener:HandleAllMessages");
        }
    }
}