Этап 2. Класс MapsCollection

Warship/Warship/MapsCollection.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Warship
+{
+    internal class MapsCollection
+    {
+        readonly Dictionary<string, MapWithSetWarshipsGeneric<DrawingObjectWarship, 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, MapWithSetWarshipsGeneric<DrawingObjectWarship, AbstractMap>>();
+            _pictureWidth = pictureWidth;
+            _pictureHeight = pictureHeight;
+        }
+
+        public void AddMap(string name, AbstractMap map)
+        {
+            if (_mapStorages.ContainsKey(name))
+            {
+                MessageBox.Show("Карта уже существует");
+                return;
+            }
+            else
+            {
+                _mapStorages.Add(name, new MapWithSetWarshipsGeneric<DrawingObjectWarship, AbstractMap>(_pictureWidth, _pictureHeight, map));
+            }
+        }
+
+        public void DelMap(string name)
+        {
+
+            _mapStorages.Remove(name);
+
+        }
+
+        public MapWithSetWarshipsGeneric<DrawingObjectWarship, AbstractMap> this[string ind]
+        {
+            get
+            {
+                if (_mapStorages.ContainsKey(ind))
+                    return _mapStorages[ind];
+                return null;
+            }
+        }
+    }
+}