Actually use nickname for something

Resources/copy_multiplayer_settings.tscn

@@ -50,7 +50,6 @@ text = "Name"
 [node name="LineEdit" type="LineEdit" parent="Name"]
 layout_mode = 2
 size_flags_horizontal = 3
-placeholder_text = "Anonymous"
 
 [node name="Host" type="HBoxContainer" parent="."]
 layout_mode = 2

copyMultiplayer.gd

@@ -2,7 +2,7 @@ class_name copyMultiplayer
 extends Mod_Base
 
 @export var cache    := ""
-@export var nickname := "" # FIXME: Not used for anything yet.
+@export var nickname := ""
 @export var address  := ""
 @export var port     := 52410
 
@@ -18,6 +18,10 @@ var player_order: Array[int] = []
 var starting_offset     := Vector3(-1.25, 0.0, 0.0)
 var accumulative_offset := Vector3( 0.35, 0.0, 0.0)
 
+# FIXME: There is an edge case where you can load the settings while connected,
+#        resulting in out-of-sync information with connected players, but so far
+#        I don't believe this should be a source of issues.
+
 func _ready() -> void:
 	# FIXME: This is just thrown together. Dunno if this is an accurate list.
 	# TODO: Allow specifying additional bones, with the help of a hierachical list of existing bones in the model.
@@ -40,12 +44,18 @@ func _ready() -> void:
 	main_controller = $"/root/SnekStudio_Main/ModelController"
 	main_controller.child_entered_tree.connect(on_model_controller_child_added)
 
-	setup_setting_widget("cache"   , "Cache/LineEdit")
-	setup_setting_widget("nickname", "Name/LineEdit" )
-	setup_setting_widget("address" , "Host/Address"  )
-	setup_setting_widget("port"    , "Host/Port"     )
+	setup_setting_widget("cache"   , "Cache/LineEdit", true )
+	setup_setting_widget("nickname", "Name/LineEdit" , false)
+	setup_setting_widget("address" , "Host/Address"  , true )
+	setup_setting_widget("port"    , "Host/Port"     , true )
 	setup_button_connections()
 
+	# Filter whitespace characters from nickname before saving it to "nickname" field.
+	var nickname_widget: LineEdit = get_settings_window().get_node("Name/LineEdit")
+	nickname_widget.text_changed.connect(func(new_text): modify_setting("nickname", new_text.strip_edges()))
+	nickname_widget.text_submitted.connect(func(_new_text): nickname_widget.text = nickname)
+	nickname_widget.focus_exited.connect(func(): nickname_widget.text = nickname)
+
 	multiplayer.peer_connected     .connect(on_peer_connected)
 	multiplayer.peer_disconnected  .connect(on_peer_disconnected)
 	multiplayer.connected_to_server.connect(on_connected_to_server)
@@ -58,17 +68,18 @@ func _exit_tree() -> void:
 func _create_settings_window() -> Control:
 	return load("res://Mods/copyMultiplayer/Resources/copy_multiplayer_settings.tscn").instantiate()
 
-func setup_setting_widget(setting_name: String, path: NodePath) -> void:
+func setup_setting_widget(setting_name: String, path: NodePath, setup_events: bool) -> void:
 	var settings = get_settings_window()
 	var widget: Control = settings.get_node(path)
 
 	_settings_properties.append({ name = setting_name, args = {  } })
 	_settings_widgets_by_setting_name[setting_name] = widget
 
-	if widget is LineEdit: widget.text_changed.connect(
-		func(text): modify_setting(setting_name, text))
-	if widget is SpinBox: widget.value_changed.connect(
-		func(number): modify_setting(setting_name, roundi(number)))
+	if setup_events:
+		if widget is LineEdit: widget.text_changed.connect(
+			func(text): modify_setting(setting_name, text))
+		if widget is SpinBox: widget.value_changed.connect(
+			func(number): modify_setting(setting_name, roundi(number)))
 
 func setup_button_connections() -> void:
 	var window = get_settings_window()
@@ -112,9 +123,6 @@ func on_disconnect_pressed() -> void:
 
 
 func on_peer_connected(id: int) -> void:
-	update_status()
-	print_log(["Player ", id, " connected"])
-
 	var model_controller := ModelController.new()
 	model_controller.name = str(id)
 	var sync_controller := SyncController.new()
@@ -125,20 +133,28 @@ func on_peer_connected(id: int) -> void:
 	player_order.append(id)
 	update_model_transforms()
 
+	# Send information to the newly connected player about ourselves.
+	# (Technically this doesn't need to be relayed through the server, but oh well.)
+	if nickname: change_nickname.rpc_id(id, nickname)
 	var filename = main_controller._last_loaded_vrm.get_file()
 	if filename.is_valid_filename(): change_model.rpc_id(id, filename)
 
-func on_peer_disconnected(id: int) -> void:
 	update_status()
-	print_log(["Player ", id, " disconnected"])
+	print_log("%s connected" % sync_controller.get_display_name())
+
+func on_peer_disconnected(id: int) -> void:
+	var controller = get_sync_controller(id)
+	if not controller: return
 
-	var controller: ModelController = get_node(str(id))
-	remove_child(controller)
-	controller.queue_free()
+	remove_child(controller.model_controller)
+	controller.model_controller.queue_free()
 
 	player_order.remove_at(player_order.find(id))
 	update_model_transforms()
 
+	update_status()
+	print_log("Player %s disconnected" % id)
+
 func on_connected_to_server() -> void:
 	print_log("Connected to server")
 
@@ -167,7 +183,7 @@ func update_status() -> void:
 	var num_players := 1 + multiplayer.get_peers().size()
 	var side := "Hosting" if multiplayer.is_server() else "Connected"
 	var s := "s" if num_players != 1 else ""
-	set_status([side, ": ", num_players, " player", s])
+	set_status("%s: %d player%s" % [side, num_players, s])
 
 
 # FIXME: Temporary hardcoded way to assign some offset to other players.
@@ -213,6 +229,12 @@ func get_sync_controller(peer_id: int) -> SyncController:
 	if not model_controller: return null
 	return model_controller.get_node_or_null("SyncController") as SyncController
 
+@rpc("any_peer", "reliable")
+func change_nickname(new_nickname: String) -> void:
+	var peer_id := multiplayer.get_remote_sender_id()
+	var controller := get_sync_controller(peer_id)
+	if controller: controller.change_nickname(new_nickname)
+
 @rpc("any_peer", "reliable")
 func change_model(filename: String) -> void:
 	var peer_id := multiplayer.get_remote_sender_id()

sync_controller.gd

@@ -5,7 +5,7 @@ var module: copyMultiplayer
 var model_controller: ModelController
 var peer_id: int
 
-var nickname: String # FIXME: Not assigned or used.
+var nickname: String
 var model_name: String
 var model: Node
 var skeleton: Skeleton3D
@@ -18,6 +18,16 @@ func _ready() -> void:
 	model_controller = get_parent()
 	peer_id = model_controller.name.to_int()
 
+func get_display_name() -> String:
+	if nickname: return "Player '%s' (%d)" % [ nickname, peer_id ]
+	else:        return "Player (%d)" % peer_id
+
+func change_nickname(new_nickname: String) -> void:
+	new_nickname = new_nickname.strip_edges()
+	if new_nickname == "": return # Ignore empty nicknames.
+	module.print_log("%s is now known as '%s'" % [ get_display_name(), new_nickname ])
+	nickname = new_nickname
+
 ## Attempts to change the model of this player.
 func change_model(filename: String) -> void:
 	if not filename.is_valid_filename():
@@ -25,12 +35,12 @@ func change_model(filename: String) -> void:
 		return
 	var full_path := module.cache.path_join(filename)
 	if not FileAccess.file_exists(full_path):
-		module.print_log("Player %d wanted to switch to '%s', but it doesn't exist, skipping" % [ peer_id, filename ])
+		module.print_log("%s wanted to switch to '%s', but it doesn't exist, skipping" % [ get_display_name(), filename ])
 		return
 	if not model_controller.load_vrm(full_path):
 		module.print_log("ERROR: Model '%s' could not be loaded!" % filename)
 		return
-	module.print_log("Player %d switched to '%s'" % [ peer_id, filename ])
+	module.print_log("%s switched to '%s'" % [ get_display_name(), filename ])
 	model_name = filename
 	model      = model_controller.get_node_or_null("Model")
 	skeleton   = model_controller._get_model_skeleton()