Этап 2. Класс MapsCollection

GasolineTanker/GasolineTanker/MapsCollection.cs

@@ -0,0 +1,45 @@
+using System.Linq;
+using System.Xml.Linq;
+
+namespace GasolineTanker
+{
+    internal class MapsCollection
+    {
+        readonly Dictionary<string, MapWithSetTankersGeneric<DrawningObjectTanker, AbstractMap>> _mapStorages;
+        public List<string> Keys => _mapStorages.Keys.ToList();
+
+        private readonly int _pictureWidth;
+        private readonly int _pictureHeight;
+
+        public MapsCollection(int pictureWidth, int pictureHeight)
+        {
+            _mapStorages = new Dictionary<string, MapWithSetTankersGeneric<DrawningObjectTanker, AbstractMap>>();
+            _pictureWidth = pictureWidth;
+            _pictureHeight = pictureHeight;
+        }
+
+        public void AddMap(string name, AbstractMap map)
+        {
+            if (!_mapStorages.ContainsKey(name))
+            {
+                _mapStorages.Add(name, new MapWithSetTankersGeneric<DrawningObjectTanker, AbstractMap>
+                    (_pictureWidth, _pictureHeight, map));
+            }
+        }
+        public void DelMap(string name)
+        {
+            if (_mapStorages.ContainsKey(name))
+                _mapStorages.Remove(name);
+        }
+        public MapWithSetTankersGeneric<DrawningObjectTanker, AbstractMap> this[string ind]
+        {
+            get
+            {
+                if (_mapStorages.ContainsKey(ind))
+                    return _mapStorages[ind];
+                else
+                    return null;
+            }
+        }
+    }
+}