feat: adding basic multiplayer

ui/pause_menu.gd

@@ -239,9 +239,26 @@ func _build_ui() -> void:
 	var general_tab = VBoxContainer.new()
 	general_tab.name = "General"
 	tab_container.add_child(general_tab)
-	var gen_label = Label.new()
-	gen_label.text = "Settings coming soon..."
-	general_tab.add_child(gen_label)
+	var user_hbox = HBoxContainer.new()
+	general_tab.add_child(user_hbox)
+	
+	var user_lbl = Label.new()
+	user_lbl.text = "Username:"
+	user_lbl.custom_minimum_size = Vector2(150, 0)
+	user_hbox.add_child(user_lbl)
+	
+	var user_input = LineEdit.new()
+	user_input.text = SettingsManager.username
+	user_input.custom_minimum_size = Vector2(200, 0)
+	user_hbox.add_child(user_input)
+	
+	var user_save = Button.new()
+	user_save.text = "Save"
+	user_save.pressed.connect(func():
+		SettingsManager.username = user_input.text
+		SettingsManager._save_settings()
+	)
+	user_hbox.add_child(user_save)
 	
 	var spacer_gen = Control.new()
 	spacer_gen.size_flags_vertical = Control.SIZE_EXPAND_FILL