refactor: decouple game networking from lobby client

* Replace direct client/server networking references with GameClient/GameServer scenes
* Refactor message bus to support local emission and argument expansion
* Move lobby connection lifecycle handling to message bus events
* Remove multiplayer connection wait helpers and direct lobby client coupling
* Rename Server to ServerNetworking and update lobby client references
* Update scene resources and export configuration

scenes/data_bridge/lobby_data.gd

@@ -1,9 +1,6 @@
 class_name LobbyData extends Node
 
 
-@onready var lobby_ui: Node
-
-
 func _init() -> void:
 	Globals.lobby_data = self
 
@@ -11,15 +8,16 @@ func _init() -> void:
 @rpc("authority", "reliable")
 func connect_to_game() -> void:
 	# NOTE: Leave the lobby
-	lobby_ui.client.close_connection()
-
-	Globals.multiplayer_data.wait_for_connection_close()
+	MessageBus.emit_local("lobby_close_connection", null)
 
 	# NOTE: Join target game server
-	# TODO: Don't use libby client... Use a created game client.
-	lobby_ui.client.start_client(
-		Globals.game_data.game_address,
-		Globals.game_data.game_port
+	MessageBus.emit_local(
+		"game_start_client",
+		[
+			Globals.game_data.game_address,
+			Globals.game_data.game_port
+		],
+		true
 	)
 
 @rpc("authority", "reliable")

scenes/data_bridge/multiplayer_data.gd

@@ -44,17 +44,6 @@ func init_match():
 		true
 	)
 
-func wait_for_connection() -> void:
-	while not Globals.lobby_data.lobby_ui.client.peer:
-		await get_tree().process_frame
-
-	while Globals.lobby_data.lobby_ui.client.peer.get_connection_status() != 2:
-		await get_tree().process_frame
-
-func wait_for_connection_close() -> void:
-	while Globals.lobby_data.lobby_ui.client.peer:
-		await get_tree().process_frame
-
 
 func set_multiplayer_inactive() -> void:
 	is_multiplayer_active = false

scenes/screens/lobby_screen/lobby.gd

@@ -2,17 +2,18 @@ class_name Lobby extends LobbyBase
 
 
 func _ready() -> void:
-	Globals.lobby_data.lobby_ui = self
-
 	setup_signals()
 
 func _exit_tree() -> void:
+	# TODO: Maybe no longer needed...
 	if Globals.multiplayer_data.is_multiplayer_active: return
+	client._do_wait_close_connection()
 
-	if client.peer:
-		client.close_connection()
 
 func setup_signals() -> void:
+	MessageBus.subscribe("lobby_wait_for_connection", client._do_wait_for_connection)
+	MessageBus.subscribe("lobby_close_connection", client._do_wait_close_connection)
+
 	MessageBus.subscribe("receive_match_list", _on_receive_match_list)
 	MessageBus.subscribe("match_list_activate_entry", _on_match_list_entry_activated)
 	MessageBus.subscribe("match_list_add_entry", _on_match_list_entry_added)
@@ -23,7 +24,7 @@ func setup_signals() -> void:
 func _server_host_started() -> void:
 	host_connect_bttn.visible = false
 
-# NOTE: 'matches_list' can be empty but so long as we get the call from the
+# NOTE: 'matches_list' can be empty; so long as we get the call from the
 #       server we know we are connected and thus hide respective UI elements.
 func _on_receive_match_list(matches_list: Array) -> void:
 	push_warning("Client Joined Host: Full Match List Recieved...\n", matches_list)
@@ -36,6 +37,8 @@ func _on_receive_match_list(matches_list: Array) -> void:
 	for match_entry in matches_list:
 		_create_match_entry(match_entry)
 
+	client.lobby_fully_connected = true
+
 func _on_match_list_entry_activated(match_id: String) -> void:
 	for match_entry in match_list.get_children():
 		match_entry.join_bttn.visible = false

scenes/screens/lobby_screen/lobby.tscn

@@ -3,7 +3,7 @@
 [ext_resource type="Script" uid="uid://dk7afnf7ol7dy" path="res://scenes/screens/lobby_screen/lobby.gd" id="1_hhiik"]
 [ext_resource type="PackedScene" uid="uid://dg7pgj6i5pk8p" path="res://scenes/ui_controls/lobby_screen/lobby_ui.tscn" id="2_lqt48"]
 [ext_resource type="Script" uid="uid://sihv0kwbcr33" path="res://scenes/screens/lobby_screen/lobby_rpc.gd" id="3_rurl6"]
-[ext_resource type="Script" uid="uid://ci57tiuqsx1jp" path="res://scripts/client_networking.gd" id="4_glu7g"]
+[ext_resource type="Script" uid="uid://dv7j35h2ngiq7" path="res://scenes/screens/lobby_screen/lobby_client.gd" id="4_glu7g"]
 
 [node name="lobby" type="Node"]
 script = ExtResource("1_hhiik")

scenes/screens/lobby_screen/lobby_base.gd

@@ -16,7 +16,7 @@ const MATCH_ENTRY                           = preload("res://scenes/screens/lobb
 @onready var new_match_name_input: LineEdit   = $ui/body/right_body/create_match_hbox/new_match_name_input
 
 @onready var rpc_signals: Node                = $rpc_signals
-@onready var client: Node                     = $client
+@onready var client: LobbyClient              = $client
 
 var active_mode: String                       = "snooker"
 var active_match: HBoxContainer               = null
@@ -52,7 +52,8 @@ func _on_match_create_bttn_pressed() -> void:
 		"type": active_mode
 	}
 
-	MessageBus.emit_request.rpc_id(1, "match_list_add_entry", match_entry)
+	#MessageBus.emit_request.rpc_id(1, "match_list_add_entry", match_entry)
+	MessageBus.emit_request.rpc("match_list_add_entry", match_entry)
 
 func _on_mode_bttn_pressed(button: Button) -> void:
 	active_mode = button.text.remove_chars("-").to_lower()

scenes/screens/lobby_screen/lobby_client.gd

@@ -0,0 +1,35 @@
+class_name LobbyClient extends ClientNetworking
+
+
+var lobby_fully_connected: bool = false
+
+
+func _ready() -> void:
+	pass
+
+func _process(_delta: float) -> void:
+	pass
+
+func _do_wait_for_connection() -> void:
+	_wait_for_connection()
+
+	while not lobby_fully_connected:
+		await get_tree().process_frame
+
+func _do_wait_close_connection():
+	_wait_close_connection()
+
+	lobby_fully_connected = false
+
+
+func client_connected_to_server() -> void:
+	push_warning("Connected to server!")
+
+
+func client_disconnected_from_server() -> void:
+	push_warning("Disconnected from, server...")
+
+func client_connection_failed_to_server() -> void:
+	push_warning("Connection failed!")
+
+	unset_client()

scenes/screens/lobby_screen/lobby_client.gd.uid

@@ -0,0 +1 @@
+uid://dv7j35h2ngiq7