server: moved code generation from client to server to avoid code collision

components/web_client_tcp.gd

@@ -70,10 +70,13 @@ func _handle_response(response: String) -> void:
 	match data["response"]:
 		"create_lobby":
 			if data["status"] == "ok":
+				_lobby_id = data["lobby_id"]
+				_client_id = data["client_id"]
 				connected_to_lobby.emit.call_deferred(_lobby_id)
 				connection_status_changed.emit.call_deferred(ConnectionStatus.JOINED)
 		"join_lobby":
 			if data["status"] == "ok":
+				_client_id = data["client_id"]
 				connected_to_lobby.emit.call_deferred(_lobby_id)
 				connection_status_changed.emit.call_deferred(ConnectionStatus.JOINED)
 		"client_joined_lobby":
@@ -103,18 +106,15 @@ func disconnect_from_server() -> void:
 	connection_status_changed.emit(ConnectionStatus.DISCONNECTED)
 
 func create_lobby(client_name: String) -> void:
-	_lobby_id = _generate_code()
-	_client_id = _generate_code()
 	_client_name = client_name
 	
-	_send_message(TCPMessages.create_lobby(_lobby_id, _client_id, client_name))
+	_send_message(TCPMessages.create_lobby(client_name))
 
 func join_lobby(lobby_id: String, client_name: String) -> void:
 	_lobby_id = lobby_id
-	_client_id = _generate_code()
 	_client_name = client_name
 	
-	_send_message(TCPMessages.join_lobby(_lobby_id, _client_id, client_name))
+	_send_message(TCPMessages.join_lobby(_lobby_id, client_name))
 
 func leave_lobby() -> void:
 	_send_message(TCPMessages.leave_lobby(_lobby_id, _client_id))
@@ -128,14 +128,3 @@ func leave_lobby() -> void:
 
 func _send_message(message: String) -> void:
 	_tcp.put_data(message.to_utf8_buffer())
-
-func _generate_code() -> String:
-	# use a local randomized RNG to keep the global RNG reproducible
-	var rng = RandomNumberGenerator.new()
-	rng.randomize()
-	var length = 6
-	var result = ''
-	for _n in range(length):
-		var ascii = rng.randi_range(0, 25) + 65
-		result += '%c' % ascii
-	return result