fix: Fixes region priority and resolution. (#1254)

- [X] Fixes world location JSON deserializer.
- [X] Fixes region resolver and priorities.
- [X] Removes DynamicJson from regions.
- [X] Adds missing region music.

Projects/Server/Regions/RegionJsonDto.cs

@@ -0,0 +1,61 @@
+/*************************************************************************
+ * ModernUO                                                              *
+ * Copyright 2019-2022 - ModernUO Development Team                       *
+ * Email: hi@modernuo.com                                                *
+ * File: RegionJsonDto.cs                                                *
+ *                                                                       *
+ * This program is free software: you can redistribute it and/or modify  *
+ * it under the terms of the GNU General Public License as published by  *
+ * the Free Software Foundation, either version 3 of the License, or     *
+ * (at your option) any later version.                                   *
+ *                                                                       *
+ * You should have received a copy of the GNU General Public License     *
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>. *
+ *************************************************************************/
+
+using System;
+using System.Text.Json.Serialization;
+using Server.Utilities;
+
+namespace Server;
+
+public class RegionJsonDto
+{
+    [JsonIgnore]
+    public virtual Type RegionType => typeof(Region);
+
+    public Map Map { get; set; }
+    public string? Parent { get; set; }
+    public string Name { get; set; }
+    public int? Priority { get; set; }
+    public Rectangle3D[] Area { get; set; }
+    public Point3D GoLocation { get; set; }
+    public MusicName? Music { get; set; }
+
+    public virtual void FromRegion(Region region)
+    {
+        Map = region.Map;
+        Parent = region.Parent?.Name;
+        Name = region.Name;
+        Priority = region.Priority;
+        Area = region.Area;
+        GoLocation = region.GoLocation;
+        Music = region.Music != region.DefaultMusic ? region.Music : null;
+    }
+
+    public Region ToRegion()
+    {
+        var region = Priority != null
+            ? RegionType.CreateInstance<Region>(Name, Map, Region.Find(Parent, Map), Priority, Area)
+            : RegionType.CreateInstance<Region>(Name, Map, Region.Find(Parent, Map), Area);
+
+        HydrateRegion(region);
+        return region;
+    }
+
+    protected virtual void HydrateRegion(Region region)
+    {
+        region.GoLocation = GoLocation;
+        region.Music = Music ?? region.DefaultMusic;
+    }
+}