TouchyTickets/TouchyTickets/Options.cs

using System.IO;
using System.Runtime.Serialization;
using Microsoft.Xna.Framework.Audio;
using Newtonsoft.Json;

namespace TouchyTickets {
    [DataContract]
    public class Options {

        public static Options Instance { get; private set; }

        [DataMember]
        public int RainingTicketLimit = 300;
        [DataMember]
        public float SoundVolume {
            get => this.soundVolume;
            set {
                this.soundVolume = value;
                SoundEffect.MasterVolume = value;
            }
        }
        private float soundVolume = 1;
        [DataMember]
        public bool WhileYouWereAwayMessage = true;
        [DataMember]
        public bool KeepScreenOn {
            get => this.keepScreenOn;
            set {
                this.keepScreenOn = value;
                GameImpl.Instance.Platform.SetKeepScreenOn(value);
            }
        }
        private bool keepScreenOn;

        public static void Save() {
            var file = GetOptionsFile(true);
            using (var stream = new JsonTextWriter(file.CreateText()))
                SaveHandler.Serializer.Serialize(stream, Instance);
        }

        public static void Load() {
            var file = GetOptionsFile(false);
            if (file.Exists) {
                using (var stream = new JsonTextReader(file.OpenText()))
                    Instance = SaveHandler.Serializer.Deserialize<Options>(stream);
            } else {
                Instance = new Options();
            }
        }

        private static FileInfo GetOptionsFile(bool create) {
            return new FileInfo(Path.Combine(SaveHandler.GetGameDirectory(create).FullName, "Options"));
        }

    }
}