Elixir game server and MultiplayerSpawner, MultiplayerSynchronizer

Pedro_Rocha · February 10, 2025, 11:06am

godot 4.3

Hello everyone, how are you doing?

Recently, I started designing a multiplayer game by combining two things I really like: Godot and Elixir. It has been a very fun and challenging experience, but at the moment, I find myself stuck on some concepts on the Godot side.

That’s why I thought it would be a good idea to bring one of my questions to this forum. My question is:

When creating my game server with Elixir (I’m using this repository), do the MultiplayerSpawner and MultiplayerSynchronizer functionalities work normally?

I’m a bit lost at this point. If you have any documentation, articles, or any study material to recommend, I would be very grateful.

Thank you very much! I really appreciate any help

tundra-peaks-studios · February 13, 2025, 12:27am

I’ve rewritten RCON functionality with TCPServer/StreamPeerTCP to use in addition to ENetMultiplayerPeer (which MultiplayerSPawner and MultiplayerSYnchronizer work with off the bat) and out the gate can say that the repo is using a WebSocketPeer which is TCP while the Godot ENetMultiplayer API is UDP-based:

github.com/alfredbaudisch/GodotPhoenixChannels-Demo

addons/phoenix_channels/scripts/phoenix_socket.gd

4.0

class_name PhoenixSocket
extends Node

#
# Signals
#

signal on_open(params)
signal on_error(data)
signal on_close()
signal on_connecting(is_connecting)

#
# Socket Members
#

const DEFAULT_TIMEOUT_MS := 10000
const DEFAULT_HEARTBEAT_INTERVAL_MS := 30000
const DEFAULT_BASE_ENDPOINT := "ws://localhost:4000/socket"
const DEFAULT_RECONNECT_AFTER_MS := [1000, 2000, 5000, 10000]

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I’d really caution against trying to do any custom UDP stuff in conjunction to Godot’s native handling of its ENetMultiplayer API unless you know at an engine/C++ level what’s going on under the hood:

github.com/godotengine/godot

thirdparty/enet/enet_godot.cpp

master

/**************************************************************************/
/*  enet_godot.cpp                                                        */
/**************************************************************************/
/*                         This file is part of:                          */
/*                             GODOT ENGINE                               */
/*                        https://godotengine.org                         */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
/*                                                                        */
/* Permission is hereby granted, free of charge, to any person obtaining  */
/* a copy of this software and associated documentation files (the        */
/* "Software"), to deal in the Software without restriction, including    */
/* without limitation the rights to use, copy, modify, merge, publish,    */
/* distribute, sublicense, and/or sell copies of the Software, and to     */
/* permit persons to whom the Software is furnished to do so, subject to  */
/* the following conditions:                                              */
/*                                                                        */
/* The above copyright notice and this permission notice shall be         */
/* included in all copies or substantial portions of the Software.        */

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What I’ve been doing is have all data-plane gameplay (physics, movement, etc.) handled by ENetMultiplayer with native handling and using my own RCON interpretation in GDScript to handle all control-plane gameplay (scoreboard, stats tracking, admin commands, etc.). Not sure if this is your goal with Elixir but looks like it.

system · March 15, 2025, 12:27am

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