Changed to JsonSerialization to permanently store regions.

OSMDatastructure/Region.cs

@@ -1,4 +1,5 @@
-using System.Runtime.Serialization.Formatters.Binary;
+using System.Text.Json;
+using System.Text.Json.Serialization;
 using OSMDatastructure.Graph;
 
 namespace OSMDatastructure;
@@ -6,21 +7,32 @@ namespace OSMDatastructure;
 [Serializable]
 public class Region
 {
-    [NonSerialized]public const float RegionSize = 0.025f;
-    public readonly HashSet<OsmNode> nodes = new();
-    public ulong regionHash { get; }
-    public TagManager tagManager { get; }
+    [JsonIgnore]public const float RegionSize = 0.025f;
+    [JsonIgnore]public static readonly JsonSerializerOptions serializerOptions = new()
+    {
+        IncludeFields = true,
+        MaxDepth = 32,
+        IgnoreReadOnlyFields = false//,
+        //WriteIndented = true
+    };
 
+    [JsonRequired]public HashSet<OsmNode> nodes { get; set; }
+    public ulong regionHash { get; }
+    [JsonRequired]public TagManager tagManager { get; set; }
+
+    [JsonConstructor]
     public Region(ulong regionHash)
     {
         this.regionHash = regionHash;
         tagManager = new TagManager();
+        nodes = new HashSet<OsmNode>();
     }
 
     public Region(Coordinates coordinates)
     {
         regionHash = Coordinates.GetRegionHashCode(coordinates);
         tagManager = new TagManager();
+        nodes = new HashSet<OsmNode>();
     }
 
     public bool ContainsNode(ulong id)
@@ -49,11 +61,8 @@ public class Region
 
     public static Region? FromFile(string filePath)
     {
-        BinaryFormatter bFormatter = new BinaryFormatter();
-#pragma warning disable SYSLIB0011
         if (File.Exists(filePath))
-            return (Region)bFormatter.Deserialize(new FileStream(filePath, FileMode.Open));
-#pragma warning restore SYSLIB0011
+            return JsonSerializer.Deserialize<Region>(new FileStream(filePath, FileMode.Open), serializerOptions)!;
         else return null;
     }