hotel-madness/scripts/utils/networking.gd

extends Node

## Connection Code

# Connect the signals.
func _ready() -> void:
	if multiplayer.connected_to_server.connect(_on_connected_ok) != OK:
		Log.error("FAILED to connect the connected_to_server signal to _on_connected_ok!", "Internal Error: Failed to connect signal.")
	if multiplayer.connection_failed.connect(close_network) != OK:
		Log.error("FAILED to connect the connection_failed signal to _on_connected_fail!", "Internal Error: Failed to connect signal.")
	if multiplayer.server_disconnected.connect(close_network) != OK:
		Log.error("FAILED to connect the server_disconnected signal to _on_server_disconnected!", "Internal Error: Failed to connect signal.")

# Start the network listener.
func start_server() -> Error:
	var peer: ENetMultiplayerPeer = ENetMultiplayerPeer.new()
	if peer.create_server(Game.port, Game.max_clients) != OK:
		Log.warning("Couldn't create the server at port %d!" % Game.port)
		return FAILED
	multiplayer.multiplayer_peer = peer
	Log.info("Created the server at port %d." % Game.port)
	return OK

# Connect to a server.
func join_server() -> Error:
	var peer: ENetMultiplayerPeer = ENetMultiplayerPeer.new()
	if peer.create_client(Game.ip, Game.port) != OK:
		Log.warning("Couldn't connect to the server at %s:%d!" % [Game.ip, Game.port])
		return FAILED
	multiplayer.multiplayer_peer = peer
	Log.info("Connected to the server at %s:%d." % [Game.ip, Game.port])
	return OK

# Close all network connections.
func close_network() -> void:
	multiplayer.multiplayer_peer = null
	Log.info("Closed all network connections.")

## Matchmaking Code

var mutex: Mutex = Mutex.new()
var rooms: Dictionary = {}
var peers: Dictionary = {}

func join_room() -> void:
	if join_server() != OK:
		Log.warning("Failed to connect to sever.")

func _on_connected_ok() -> void:
	if rpc_id(1, "send_roomname", Game.room_name) != OK:
		Log.warning("Failed to send roomname!")

@rpc("any_peer", "call_remote", "reliable")
func send_roomname(roomname: String) -> void:
	mutex.lock()
	if multiplayer.get_unique_id() == 1:
		if !rooms.has(roomname) and !rooms.has(multiplayer.get_remote_sender_id()):
			rooms[roomname] = multiplayer.get_remote_sender_id()
			rooms[multiplayer.get_remote_sender_id()] = roomname
			peers[roomname] = [multiplayer.get_remote_sender_id()]
			Log.info("Room %s registered." % roomname)
		elif peers[roomname] is Array:
			# For some odd reason, Godot doesn't allow casting peers[roomname] to an Array, but this works?
			var peer_array: Array = peers[roomname]
			peer_array.append(multiplayer.get_remote_sender_id())
			peers[roomname] = peer_array
			Log.debug("Room %s joined by peer %d." % [roomname, multiplayer.get_remote_sender_id()])
	else:
		Log.warning("Peer %d tried to send this client a request meant for the authority!" % multiplayer.get_remote_sender_id())
	mutex.unlock()