Изменения в MapsCollection

ProjectLocomotive/ProjectLocomotive/MapsCollection.cs

@@ -10,7 +10,7 @@ namespace Locomotive
     internal class MapsCollection
     {
         /// Словарь (хранилище) с картами
-        readonly Dictionary<string, MapWithSetLocomotivesGeneric<DrawningObject,
+        readonly Dictionary<string, MapWithSetLocomotivesGeneric<IDrawningObject,
        AbstractMap>> _mapStorages;
         /// Возвращение списка названий карт
         public List<string> Keys => _mapStorages.Keys.ToList();
@@ -18,11 +18,14 @@ namespace Locomotive
         private readonly int _pictureWidth;
         /// Высота окна отрисовки
         private readonly int _pictureHeight;
+        // Сепараторы
+        private readonly char separatorDict = '|';
+        private readonly char separatorData = ';';
         /// Конструктор
         public MapsCollection(int pictureWidth, int pictureHeight)
         {
             _mapStorages = new Dictionary<string,
-            MapWithSetLocomotivesGeneric<DrawningObject, AbstractMap>>();
+            MapWithSetLocomotivesGeneric<IDrawningObject, AbstractMap>>();
             _pictureWidth = pictureWidth;
             _pictureHeight = pictureHeight;
         }
@@ -30,7 +33,7 @@ namespace Locomotive
         public void AddMap(string name, AbstractMap map)
         {
             // Логика для добавления
-            if (!_mapStorages.ContainsKey(name)) _mapStorages.Add(name, new MapWithSetLocomotivesGeneric<DrawningObject, AbstractMap>(_pictureWidth, _pictureHeight, map));
+            if (!_mapStorages.ContainsKey(name)) _mapStorages.Add(name, new MapWithSetLocomotivesGeneric<IDrawningObject, AbstractMap>(_pictureWidth, _pictureHeight, map));
         }
         /// Удаление карты
         public void DelMap(string name)
@@ -39,7 +42,7 @@ namespace Locomotive
             if (_mapStorages.ContainsKey(name)) _mapStorages.Remove(name);
         }
         /// Доступ к парковке
-        public MapWithSetLocomotivesGeneric<DrawningObject, AbstractMap> this[string ind]
+        public MapWithSetLocomotivesGeneric<IDrawningObject, AbstractMap> this[string ind]
         {
             get
             {
@@ -48,5 +51,75 @@ namespace Locomotive
                 return null;
             }
         }
+        /// Метод записи информации в файл
+        private static void WriteToFile(string text, FileStream stream)
+        {
+            byte[] info = new UTF8Encoding(true).GetBytes(text);
+            stream.Write(info, 0, info.Length);
+        }
+        /// Сохранение информации по локомотивам в хранилище в файл
+        public bool SaveData(string filename)
+        {
+            if (File.Exists(filename))
+            {
+                File.Delete(filename);
+            }
+            using (FileStream fs = new(filename, FileMode.Create))
+            {
+                WriteToFile($"MapsCollection{Environment.NewLine}", fs);
+                foreach (var storage in _mapStorages)
+                {
+
+                    WriteToFile($"{storage.Key}{separatorDict}{storage.Value.GetData(separatorDict, separatorData)}{Environment.NewLine}", fs);
+                }
+            }
+            return true;
+        }
+        /// Загрузка информации по локомотивам на парковках из файла
+        public bool LoadData(string filename)
+        {
+            if (!File.Exists(filename))
+            {
+                return false;
+            }
+            string bufferTextFromFile = "";
+            using (FileStream fs = new(filename, FileMode.Open))
+            {
+                byte[] b = new byte[fs.Length];
+                UTF8Encoding temp = new(true);
+                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)
+            {
+                var elem = strs[i].Split(separatorDict);
+                AbstractMap map = null;
+                switch (elem[1])
+                {
+                    case "Simple Map":
+                        map = new SimpleMap();
+                        break;
+                    case "Spike Map":
+                        map = new SpikeMap();
+                        break;
+                    case "Rail Map":
+                        map = new RailroadMap();
+                        break;
+                }
+                _mapStorages.Add(elem[0], new MapWithSetLocomotivesGeneric<IDrawningObject, AbstractMap>(_pictureWidth, _pictureHeight, map));
+                _mapStorages[elem[0]].LoadData(elem[2].Split(separatorData, StringSplitOptions.RemoveEmptyEntries));
+            }
+            return true;
+        }
     }
 }