GodotEngine 3.0 Settings

Settings.gd

extends Node

enum {NON_EXISTING, LOAD_SUCCESS, LOAD_ERROR_COULDNT_OPEN}
const SAVE_PATH = "user://config.cfg"
var _config_file = ConfigFile.new()

func _ready():
	var result = load_settings()
	if result == NON_EXISTING:
		SetDefault()
	pass
	
func SetDefault():
	_config_file.set_value("Settings","music_off",false)
	_config_file.set_value("Settings","sounds_off",false)
	save_settings()
	pass
	
func load_settings():
	
	var file = File.new()
	
	if not file.file_exists(SAVE_PATH):
		return NON_EXISTING
	
	var error = _config_file.load(SAVE_PATH)
	
	if error != OK:
		print("Error loading the settings. Error code: %s" % error)
		return LOAD_ERROR_COULDNT_OPEN

	for section in _config_file.get_sections():
		for key in _config_file.get_section_keys(section):
			var val = _config_file.get_value(section,key)
			print("%s: %s" % [key, val])
	return LOAD_SUCCESS

func save_settings():
	_config_file.save(SAVE_PATH)
	

func Set(key,value):
	_config_file.set_value("Settings",key,value)
	save_settings()
	pass

func Get(key):
	return _config_file.get_value("Settings",key)
	pass

Because the API is evolving, here I post a basic working class