added basic setting persistence system

RhythmBullet/Zer01HD/Utilities/Persistence/IPreferences.cs

@@ -4,9 +4,9 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace RhythmBullet.Zer01HD.Utilities
+namespace RhythmBullet.Zer01HD.Utilities.Persistence
 {
-    class Preferences
+    public interface IPreferences
     {
     }
 }

RhythmBullet/Zer01HD/Utilities/Persistence/PreferencesManager.cs

@@ -0,0 +1,53 @@
+using RhythmBullet.Zer01HD.Utilities.Persistence;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Serialization;
+
+namespace RhythmBullet.Zer01HD.Utilities
+{
+    public class PreferencesManager
+    {
+        private readonly Dictionary<Type, IPreferences> preferenceList;
+        public string SavePath;
+        XmlSerializer xmlSerializer;
+
+        public PreferencesManager(string savePath, params IPreferences[] preferences)
+        {
+            this.SavePath = savePath;
+            preferenceList = new Dictionary<Type, IPreferences>();
+            foreach (IPreferences prefs in preferences)
+            {
+                preferenceList.Add(prefs.GetType(), prefs);
+            }
+        }
+
+        public T GetPreferences<T>() where T : IPreferences
+        {
+            return (T) preferenceList[typeof(T)];
+        }
+
+        public void Load()
+        {
+            foreach (KeyValuePair<Type, IPreferences> prefs in preferenceList)
+            {
+            Stream stream = new FileStream(SavePath + nameof(prefs.Key), FileMode.Open);
+            preferenceList[prefs.Key] = (IPreferences) xmlSerializer.Deserialize(stream);
+            stream.Close();
+            }
+        }
+
+        public void Save()
+        {
+            foreach (KeyValuePair<Type, IPreferences> prefs in preferenceList)
+            {
+                Stream stream = new FileStream(SavePath + nameof(prefs.Key), FileMode.Create);
+                xmlSerializer.Serialize(stream, prefs.Value);
+                stream.Close();
+            }
+        }
+    }
+}