Add music in main menu

scripts/SettingsMenu.gd

@@ -30,9 +30,19 @@ func _ready():
 	update_text()
 
 func _on_volume_slider_changed(value, setting_key):
-	var pretty_name = setting_key.capitalize().replace("_", " ")
 	settings_manager.set_setting(setting_key, value)
-	print("%s changed to: %f" % [pretty_name, value])
+
+	var bus_map = {
+		"master_volume": "Master",
+		"music_volume": "Music",
+		"sfx_volume": "SFX"
+	}
+
+	if bus_map.has(setting_key):
+		var bus_index = AudioServer.get_bus_index(bus_map[setting_key])
+		if bus_index >= 0:
+			AudioServer.set_bus_volume_db(bus_index, linear_to_db(value))
+
 
 func _input(event):
 	if event.is_action_pressed("ui_cancel") or event.is_action_pressed("ui_menu_toggle"):