Reorganizes Project (#41)

Projects/Scripts/Regions/Spawning/SpawnPersistence.cs

@@ -0,0 +1,63 @@
+namespace Server.Regions
+{
+  [TypeAlias("Server.Regions.SpawnPersistance")]
+  public class SpawnPersistence : Item
+  {
+    private static SpawnPersistence m_Instance;
+
+    private SpawnPersistence() : base(1)
+    {
+      Movable = false;
+    }
+
+    public SpawnPersistence(Serial serial) : base(serial)
+    {
+      m_Instance = this;
+    }
+
+    public SpawnPersistence Instance => m_Instance;
+
+    public override string DefaultName => "Region spawn persistence - Internal";
+
+    public static void EnsureExistence()
+    {
+      if (m_Instance == null)
+        m_Instance = new SpawnPersistence();
+    }
+
+    public override void Serialize(GenericWriter writer)
+    {
+      base.Serialize(writer);
+
+      writer.WriteEncodedInt(0); // version
+
+      writer.Write(SpawnEntry.Table.Values.Count);
+      foreach (SpawnEntry entry in SpawnEntry.Table.Values)
+      {
+        writer.Write(entry.ID);
+
+        entry.Serialize(writer);
+      }
+    }
+
+    public override void Deserialize(GenericReader reader)
+    {
+      base.Deserialize(reader);
+
+      int version = reader.ReadEncodedInt();
+
+      int count = reader.ReadInt();
+      for (int i = 0; i < count; i++)
+      {
+        int id = reader.ReadInt();
+
+        SpawnEntry entry = SpawnEntry.Table[id];
+
+        if (entry != null)
+          entry.Deserialize(reader, version);
+        else
+          SpawnEntry.Remove(reader, version);
+      }
+    }
+  }
+}