Networking: Part 2 -> Added the initial roomname handshake.

project.godot

@@ -65,7 +65,3 @@ gdscript/warnings/confusable_capture_reassignment=2
 gdscript/warnings/property_used_as_function=2
 gdscript/warnings/constant_used_as_function=2
 gdscript/warnings/function_used_as_property=2
-
-[editor]
-
-run/main_run_args="--testmode --logmode 4"

scripts/utils/game.gd

@@ -1,13 +1,12 @@
 extends Node
 
-var testmode: bool = true
-var errortest: bool = true
-
 var logmode: int = 4
 
-const IP_ADDRESS: String = "127.0.0.1"
+var ip: String = "127.0.0.1"
-const PORT: int = 25262
+var port: int = 25262
-const MAX_CLIENTS: int = 1024
+var max_clients: int = 1024
+
+var room_name: String = "sample"
 
 func _ready() -> void:
 	var args: PackedStringArray = OS.get_cmdline_args()
@@ -16,21 +15,13 @@ func _ready() -> void:
 		if !skip:
 			Log.info("Argument %s passed." % args[i])
 			match args[i]:
-				"--testmode":
-					testmode = true
-				"--errortest":
-					errortest = true
 				"--logmode":
 					logmode = int(args[i+1])
 					skip = true
+				"--server":
+					if Networking.start_server() != OK:
+						Log.error("Failed to start server! Closing application.", "Failed to start server!")
+				"--client":
+					Networking.join_room()
 				_:
 					Log.warning("Unknown argument: %s!" % args[i])
-	run_tests()
-
-func run_tests() -> void:
-	if testmode:
-		Log.info("Starting singleton tests.")
-		Networking.test()
-		Log.test()
-		if errortest:
-			Log.error("Test", "Test")

scripts/utils/log.gd

@@ -7,11 +7,6 @@ extends Node
 # 3 -> Errors/Warnings/Infos
 # 4 -> All
 
-func test() -> void:
-	debug("Test")
-	info("Test")
-	warning("Test")
-
 # Used for errors.
 func error(message: String, alert_message: String) -> void:
 	if message == "":

scripts/utils/networking.gd

@@ -1,29 +1,70 @@
 extends Node
 
-func test() -> void:
+## Connection Code
-	start_server()
+
-	join_server()
+# Connect the signals.
-	close_network()
+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() -> void:
+func start_server() -> Error:
 	var peer: ENetMultiplayerPeer = ENetMultiplayerPeer.new()
-	if peer.create_server(Game.PORT, Game.MAX_CLIENTS) != OK:
+	if peer.create_server(Game.port, Game.max_clients) != OK:
-		Log.warning("Couldn't create the server at port %d!" % Game.PORT)
+		Log.warning("Couldn't create the server at port %d!" % Game.port)
-		return
+		return FAILED
 	multiplayer.multiplayer_peer = peer
-	Log.info("Created the server at port %d." % Game.PORT)
+	Log.info("Created the server at port %d." % Game.port)
+	return OK
 
 # Connect to a server.
-func join_server() -> void:
+func join_server() -> Error:
 	var peer: ENetMultiplayerPeer = ENetMultiplayerPeer.new()
-	if peer.create_client(Game.IP_ADDRESS, Game.PORT) != OK:
+	if peer.create_client(Game.ip, Game.port) != OK:
-		Log.warning("Couldn't connect to the server at %s:%d!" % [Game.IP_ADDRESS, Game.PORT])
+		Log.warning("Couldn't connect to the server at %s:%d!" % [Game.ip, Game.port])
-		return
+		return FAILED
 	multiplayer.multiplayer_peer = peer
-	Log.info("Connected to the server at %s:%d." % [Game.IP_ADDRESS, Game.PORT])
+	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()

start.tscn

@@ -1,3 +1,3 @@
 [gd_scene format=3 uid="uid://dhi34ugxtgmlg"]
 
-[node name="Test" type="Node2D"]
+[node name="Start" type="Node2D"]