cpmirror/Assets/Mirror/Examples/Chat/Scripts/Player.cs

using System.Collections.Generic;
using UnityEngine;

namespace Mirror.Examples.Chat
{
    public class Player : NetworkBehaviour
    {
        internal static readonly HashSet<string> playerNames = new HashSet<string>();

        [SerializeField, SyncVar]
        internal string playerName;

        // RuntimeInitializeOnLoadMethod -> fast playmode without domain reload
        [UnityEngine.RuntimeInitializeOnLoadMethod]
        static void ResetStatics()
        {
            playerNames.Clear();
        }

        public override void OnStartServer()
        {
            playerName = (string)connectionToClient.authenticationData;
        }

        public override void OnStartLocalPlayer()
        {
            ChatUI.localPlayerName = playerName;
        }
    }
}