Created Pathfinding

Pathfinding/RegionManager.cs

@@ -0,0 +1,49 @@
+using OSMDatastructure;
+
+namespace OSMImporter
+{
+    public class RegionManager
+    {
+        private string workingDirectory { get; }
+        private readonly Dictionary<ulong, Region> _regions = new();
+
+        public RegionManager(string workingDirectory)
+        {
+            this.workingDirectory = workingDirectory;
+        }
+
+        public Region? GetRegion(Coordinates coordinates)
+        {
+            if(this._regions.ContainsKey(coordinates.GetRegionHash()))
+                return this._regions[coordinates.GetRegionHash()];
+            else
+            {
+                Region? loadedRegion = LoadRegion(coordinates);
+                if(loadedRegion != null)
+                    this._regions.Add(loadedRegion.regionHash, value: loadedRegion);
+                return loadedRegion;
+            }
+        }
+
+        public Region[] GetAllRegions()
+        {
+            return this._regions.Values.ToArray();
+        }
+        
+        private Region? LoadRegion(Coordinates coordinates)
+        {
+            string fullPath = Path.Combine(workingDirectory, coordinates.GetRegionHash().ToString());
+            Console.WriteLine(fullPath);
+            if (!File.Exists(fullPath))
+                return null;
+            
+            FileStream fileStream = new FileStream(fullPath, FileMode.Open);
+
+            byte[] regionBytes = new byte[fileStream.Length];
+            fileStream.Read(regionBytes, 0, regionBytes.Length);
+            fileStream.Close();
+
+            return ByteConverter.ToRegion(regionBytes);
+        }
+    }
+}