Reorganizes Project (#41)

Projects/Scripts/Engines/MLQuests/MLQuestPersistence.cs

@@ -0,0 +1,63 @@
+namespace Server.Engines.MLQuests
+{
+  public class MLQuestPersistence : Item
+  {
+    private static MLQuestPersistence m_Instance;
+
+    private MLQuestPersistence()
+      : base(1)
+    {
+      Movable = false;
+    }
+
+    public MLQuestPersistence(Serial serial) : base(serial)
+    {
+      m_Instance = this;
+    }
+
+    public override string DefaultName => "ML quests persistence - Internal";
+
+    public static void EnsureExistence()
+    {
+      if (m_Instance == null)
+        m_Instance = new MLQuestPersistence();
+    }
+
+    public override void Serialize(GenericWriter writer)
+    {
+      base.Serialize(writer);
+
+      writer.Write(2); // version
+      writer.Write(MLQuestSystem.Contexts.Count);
+
+      foreach (MLQuestContext context in MLQuestSystem.Contexts.Values)
+        context.Serialize(writer);
+
+      writer.Write(MLQuestSystem.Quests.Count);
+
+      foreach (MLQuest quest in MLQuestSystem.Quests.Values)
+        MLQuest.Serialize(writer, quest);
+    }
+
+    public override void Deserialize(GenericReader reader)
+    {
+      base.Deserialize(reader);
+
+      int version = reader.ReadInt();
+      int contexts = reader.ReadInt();
+
+      for (int i = 0; i < contexts; ++i)
+      {
+        MLQuestContext context = new MLQuestContext(reader, version);
+
+        if (context.Owner != null)
+          MLQuestSystem.Contexts[context.Owner] = context;
+      }
+
+      int quests = reader.ReadInt();
+
+      for (int i = 0; i < quests; ++i)
+        MLQuest.Deserialize(reader, version);
+    }
+  }
+}