chnage FileStream to StreamWriter and StreamReader

AirFighter/AirFighter/MapsCollection.cs

@@ -44,61 +44,44 @@ namespace AirFighter
             _mapStorages.Remove(name);
         }
 
-        private static void WriteToFile(string text, FileStream stream)
-        {
-            byte[] info = new UTF8Encoding(true).GetBytes(text);
-            stream.Write(info, 0, info.Length);
-        }
-
         public bool SaveData(string filename)
         {
             if (File.Exists(filename))
             {
                 File.Delete(filename);
             }
-            using (FileStream fs = new(filename, FileMode.Create))
+            using (StreamWriter fs = new(filename))
             {
-                WriteToFile($"MapsCollection{Environment.NewLine}", fs);
+                fs.Write($"MapsCollection{Environment.NewLine}");
                 foreach (var storage in _mapStorages)
                 {
 
-                    WriteToFile($"{storage.Key}{separatorDict}{storage.Value.GetData(separatorDict, separatorData)}{Environment.NewLine}", fs);
+                    fs.Write($"{storage.Key}{separatorDict}{storage.Value.GetData(separatorDict, separatorData)}{Environment.NewLine}");
                 }
             }
             return true;
         }
-        /// <summary>
+
-        /// Загрузка нформации по автомобилям на парковках из файла
-        /// </summary>
-        /// <param name="filename"></param>
-        /// <returns></returns>
         public bool LoadData(string filename)
         {
             if (!File.Exists(filename))
             {
                 return false;
             }
-            string bufferTextFromFile = "";
+            using (StreamReader fs = new(filename))
-            using (FileStream fs = new(filename, FileMode.Open))
             {
-                byte[] b = new byte[fs.Length];
+                string current = fs.ReadLine();
-                UTF8Encoding temp = new(true);
+                if (!current.Contains("MapsCollection"))
-                while (fs.Read(b, 0, b.Length) > 0)
-                {
-                    bufferTextFromFile += temp.GetString(b);
-                }
-            }
-            var strs = bufferTextFromFile.Split(new char[] { '\n', '\r' }, StringSplitOptions.RemoveEmptyEntries);
-            if (!strs[0].Contains("MapsCollection"))
                 {
                     //если нет такой записи, то это не те данные
                     return false;
                 }
-            //очищаем записи
+
                 _mapStorages.Clear();
-            for (int i = 1; i < strs.Length; ++i)
+
+                while ((current = fs.ReadLine()) != null)
                 {
-                var elem = strs[i].Split(separatorDict);
+                    var elem = current.Split(separatorDict);
                     AbstractMap map = null;
                     switch (elem[1])
                     {
@@ -112,6 +95,8 @@ namespace AirFighter
                     _mapStorages.Add(elem[0], new MapWithSetCarsGeneric<IDrawingObject, AbstractMap>(_pictureWidth, _pictureHeight, map));
                     _mapStorages[elem[0]].LoadData(elem[2].Split(separatorData, StringSplitOptions.RemoveEmptyEntries));
                 }
+            }
+
             return true;
         }