Лабораторная работа 4. Второй этап: коллекция карт + правки для первого этапа.

AirBomber/AirBomber/MapWithSetAirBombersGeneric.cs

@@ -88,14 +88,10 @@ namespace AirBomber
         public Bitmap ShowOnMap()
         {
             Shaking();
-            for (int i = 0; i < _setAirBombers.Count; i++)
-            {
-                var airBomber = _setAirBombers[i];
-                if (airBomber != null)
+            foreach (var airBomber in _setAirBombers.GetAirBombers())
             {
                 return _map.CreateMap(_pictureWidth, _pictureHeight, airBomber);
             }
-            }
             return new(_pictureWidth, _pictureHeight);
         }
         /// <summary>
@@ -163,10 +159,12 @@ namespace AirBomber
         private void DrawAirBombers(Graphics g)
         {
             int numOfObjectsInRow = _pictureWidth / _placeSizeWidth;
-            for (int i = 0; i < _setAirBombers.Count; i++)
+            int i = 0;
+            foreach (var airBomber in _setAirBombers.GetAirBombers())
             {
-                _setAirBombers[i]?.SetObject((numOfObjectsInRow - (i % numOfObjectsInRow) - 1) * _placeSizeWidth, (i / numOfObjectsInRow) * _placeSizeHeight, _pictureWidth, _pictureHeight);
-                _setAirBombers[i]?.DrawingObject(g);
+                airBomber.SetObject((numOfObjectsInRow - (i % numOfObjectsInRow) - 1) * _placeSizeWidth, (i / numOfObjectsInRow) * _placeSizeHeight, _pictureWidth, _pictureHeight);
+                airBomber.DrawingObject(g);
+                i++;
             }
         }
     }

AirBomber/AirBomber/MapsCollection.cs

@@ -0,0 +1,77 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AirBomber
+{
+    internal class MapsCollection
+    {
+        /// <summary>
+        /// Словарь (хранилище) с картами
+        /// </summary>
+        readonly Dictionary<string, MapWithSetAirBombersGeneric<DrawingObjectAirBomber, AbstractMap>> _mapStorages;
+        /// <summary>
+        /// Возвращение списка названий карт
+        /// </summary>
+        public List<string> Keys => _mapStorages.Keys.ToList();
+        /// <summary>
+        /// Ширина окна отрисовки
+        /// </summary>
+        private readonly int _pictureWidth;
+        /// <summary>
+        /// Высота окна отрисовки
+        /// </summary>
+        private readonly int _pictureHeight;
+        /// <summary>
+        /// Конструктор
+        /// </summary>
+        /// <param name="pictureWidth"></param>
+        /// <param name="pictureHeight"></param>
+        public MapsCollection(int pictureWidth, int pictureHeight)
+        {
+            _mapStorages = new Dictionary<string, MapWithSetAirBombersGeneric<DrawingObjectAirBomber, AbstractMap>>();
+            _pictureWidth = pictureWidth;
+            _pictureHeight = pictureHeight;
+        }
+        /// <summary>
+        /// Добавление карты
+        /// </summary>
+        /// <param name="name">Название карты</param>
+        /// <param name="map">Карта</param>
+        public void AddMap(string name, AbstractMap map)
+        {
+            if (_mapStorages.ContainsKey(name))
+            {
+                MessageBox.Show("Карта с таким названием уже существует!");
+                return;
+            }
+            _mapStorages.Add(name, new MapWithSetAirBombersGeneric<DrawingObjectAirBomber, AbstractMap>(_pictureWidth, _pictureHeight, map));
+        }
+        /// <summary>
+        /// Удаление карты
+        /// </summary>
+        /// <param name="name">Название карты</param>
+        public void DelMap(string name)
+        {
+            if (_mapStorages.ContainsKey(name))
+            {
+                _mapStorages.Remove(name);
+            }
+        }
+        /// <summary>
+        /// Доступ к парковке
+        /// </summary>
+        /// <param name="ind"></param>
+        /// <returns></returns>
+        public MapWithSetAirBombersGeneric<DrawingObjectAirBomber, AbstractMap> this[string ind]
+        {
+            get
+            {
+                if (_mapStorages.ContainsKey(ind)) return _mapStorages[ind];
+                return null;
+            }
+        }
+    }
+}

AirBomber/AirBomber/SetAirBombersGeneric.cs

@@ -82,5 +82,24 @@ namespace AirBomber
                 if (position < 0 || position >= _maxCount) Insert(value, position);
             }
         }
+
+        /// <summary>
+        /// Проход по набору до первого пустого
+        /// </summary>
+        /// <returns></returns>
+        public IEnumerable<T> GetAirBombers()
+        {
+            foreach (var airBomber in _places)
+            {
+                if (airBomber != null)
+                {
+                    yield return airBomber;
+                }
+                else
+                {
+                    yield break;
+                }
+            }
+        }
     }
 }