Region no longer contains ways. Ways are Edges added to nodes.

Combined outputfiles into single Regionfile.

OSMDatastructure/Region.cs

@@ -1,3 +1,4 @@
+using System.Runtime.Serialization.Formatters.Binary;
 using OSMDatastructure.Graph;
 
 namespace OSMDatastructure;
@@ -7,7 +8,6 @@ public class Region
 {
     [NonSerialized]public const float RegionSize = 0.1f;
     public readonly HashSet<OsmNode> nodes = new();
-    public readonly HashSet<OsmEdge> ways = new();
     public ulong regionHash { get; }
     public TagManager tagManager { get; }
 
@@ -23,11 +23,43 @@ public class Region
         tagManager = new TagManager();
     }
 
-    public OsmNode? GetNodeWithCoordinates(Coordinates coordinates)
+    public bool ContainsNode(ulong id)
     {
-        foreach(OsmNode node in this.nodes)
-            if (node.coordinates.Equals(coordinates))
-                return node;
-        return null;
+        return nodes.Any(node => node.nodeId == id);
+    }
+
+    public bool ContainsNode(Coordinates coordinates)
+    {
+        return nodes.Any(node => node.coordinates.Equals(coordinates));
+    }
+
+    public OsmNode? GetNode(ulong id)
+    {
+        if (ContainsNode(id))
+            return nodes.First(node => node.nodeId == id);
+        else return null;
+    }
+
+    public OsmNode? GetNode(Coordinates coordinates)
+    {
+        if (ContainsNode(coordinates))
+            return nodes.First(node => node.coordinates.Equals(coordinates));
+        else return null;
+    }
+
+    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
+        else return null;
+    }
+
+    public static Region? FromId(string path, ulong regionId)
+    {
+        string filePath = Path.Join(path, $"{regionId}.region");
+        return FromFile(filePath);
     }
 }