Chat system is not working

Questions & Answers
1

Hi everybody,

I’ve used this code but It is not working so anyone help me?

It broken in this line and it shows nullobject:

NetworkManager.singleton.client.Send((short) MyMessages.MyMessageTypes.CHAT_MESSAGE, msg);

Here is my code:

using UnityEngine;
using System.Collections.Generic;
using UnityEngine.Networking;
using UnityEngine.Networking.NetworkSystem;
 
public class Chat : NetworkManager {
    public class MyMessages
    {
       
        public enum MyMessageTypes
        {
            CHAT_MESSAGE = 1000
        }
       
        public class ChatMessage : MessageBase
        {
            public string message;
        }
       
    }
 
    public List<string> chatHistory = new List<string>();
   
    //Keeps track of current message
    private string currentMessage = string.Empty;
 
    // hook into NetworkManager client setup process
    public override void OnStartClient(NetworkClient mClient)
    {
        base.OnStartClient(mClient); // base implementation is currently empty
       
        mClient.RegisterHandler((short)MyMessages.MyMessageTypes.CHAT_MESSAGE, OnClientChatMessage);
    }
   
   
   
    // hook into NetManagers server setup process
    public override void OnStartServer()
    {
        base.OnStartServer(); //base is empty
        NetworkServer.RegisterHandler((short)MyMessages.MyMessageTypes.CHAT_MESSAGE, OnServerChatMessage);
    }
 
    private void OnGUI() {
        GUILayout.BeginHorizontal(GUILayout.Width(250));
       
        currentMessage = GUILayout.TextField(currentMessage);
 
        if (GUILayout.Button("Send"))
        {
            if (!string.IsNullOrEmpty(currentMessage))
            {
                Debug.Log("a: "+ currentMessage);
                MyMessages.ChatMessage msg = new MyMessages.ChatMessage();
                msg.message = currentMessage;
//                this.client.Send((short) MyMessages.MyMessageTypes.CHAT_MESSAGE, msg);
                NetworkManager.singleton.client.Send((short) MyMessages.MyMessageTypes.CHAT_MESSAGE, msg);
               
                currentMessage = string.Empty;
            }
        }
        foreach (var msg in chatHistory)
        {
            GUILayout.Label(msg);
        }
       
        GUILayout.EndHorizontal();
    }
 
    private void OnServerChatMessage(NetworkMessage netMsg)
    {
        var msg = netMsg.ReadMessage<StringMessage>();
        Debug.Log("New chat message on server: " + msg.value);
       
        MyMessages.ChatMessage chat = new MyMessages.ChatMessage();
        chat.message = msg.value;
       
        if (msg.value == "Dam this game sucks")
        {
            return;
        }
        else
        {
            NetworkServer.SendToAll((short)MyMessages.MyMessageTypes.CHAT_MESSAGE, chat);
        }
    }
 
    private void OnClientChatMessage(NetworkMessage netMsg)
    {
        var msg = netMsg.ReadMessage<StringMessage>();
        Debug.Log("New chat message on client: " + msg.value);
       
        chatHistory.Add(msg.value);
    }
 
}

Thanks.

2

Shouldnt your Msg Method use [Command]? i assume your issue is that your strings arent being sent to other players on your server?