source: binary-improvements/CoppisAdditions/src/Commands/MutePlayerChat.cs@ 290

using System;
using System.Collections.Generic;
using AllocsFixes.PersistentData;
using System.Threading;
using UnityEngine;

namespace CoppisAdditions.CustomCommands
{
        public class MutePlayerChat : ConsoleCmdAbstract
        {
                public override string GetDescription ()
                {
                        return "mute a player on public chat";
                }

                public override string GetHelp ()
                {
                        return "Mute a player on public chat." +
                        "Usage:\n" +
                        "   mpc <steam id/player name/entity id> [true/false]\n" +
                        "If the optional parameter is not given the command will show the current status.";
                }

                public override string[] GetCommands ()
                {
                        return new string[] { "muteplayerchat", "mpc" };
                }

                public override void Execute (List<string> _params, CommandSenderInfo _senderInfo)
                {
                        try {
                                if (_params.Count < 1 || _params.Count > 2) {
                                        SdtdConsole.Instance.Output ("Wrong number of arguments, expected 1 or 2, found " + _params.Count + ".");
                                        SdtdConsole.Instance.Output (" ");
                                        SdtdConsole.Instance.Output (GetHelp ());
                                        return;
                                }

                                string steamid = PersistentContainer.Instance.Players.GetSteamID (_params [0], true);
                                if (steamid == null) {
                                        SdtdConsole.Instance.Output ("Playername or entity/steamid id not found.");
                                        return;
                                }

                                Player p = PersistentContainer.Instance.Players [steamid, false];
                                if (p == null) {
                                        SdtdConsole.Instance.Output ("Player not found.");
                                        return;
                                }

                                if (_params.Count > 1) {
                                        bool mute = false;
                                        if (_params [1].ToLower () == "true") {
                                                mute = true;
                                        } else if (_params [1].ToLower () == "false") {
                                                mute = false;
                                        } else {
                                                SdtdConsole.Instance.Output ("Wrong param 2. It must be \"true\" or \"false\"");
                                                return;
                                        }
                                        p.IsChatMuted = mute;
                                }
                                SdtdConsole.Instance.Output (p.Name + " " + (p.IsChatMuted ? "muted" : "unmuted"));

                        } catch (Exception e) {
                                Log.Out ("Error in MutePlayerChat: " + e);
                        }
                }
        }
}