Minor fixes

src/core/core.py

@@ -85,7 +85,7 @@ class Core:
         for client in self.clients:
             if not client:
                 continue
-            out += f"{client._nick}"
+            out += f"{client.nick}"
             if need_cid:
                 out += f":{client.cid}"
             out += ","

src/core/tcp_server.py

@@ -52,8 +52,8 @@ class TCPServer:
                 # TODO: i18n
                 await client.kick('Invalid key! Please restart your game.')
                 return False, client
-            client._nick = res["username"]
-            client._roles = res["roles"]
+            client.nick = res["username"]
+            client.roles = res["roles"]
             client._guest = res["guest"]
             # noinspection PyProtectedMember
             client._update_logger()