Этап 1. Смена массива на список

AirBomber/AirBomber/MapWithSetJetsGeneric.cs

@@ -94,13 +94,9 @@ namespace AirBomber
         public Bitmap ShowOnMap()
         {
             Shaking();
-            for (int i = 0; i < _setJets.Count; i++)
+            foreach (var car in _setJets.GetJets())
             {
-                var car = _setJets.Get(i);
+                return _map.CreateMap(_pictureWidth, _pictureHeight, car);
-                if (car != null)
-                {
-                    return _map.CreateMap(_pictureWidth, _pictureHeight, car);
-                }
             }
             return new(_pictureWidth, _pictureHeight);
         }
@@ -125,11 +121,11 @@ namespace AirBomber
             int j = _setJets.Count - 1;
             for (int i = 0; i < _setJets.Count; i++)
             {
-                if (_setJets.Get(i) == null)
+                if (_setJets[i] == null)
                 {
                     for (; j > i; j--)
                     {
-                        var car = _setJets.Get(j);
+                        var car = _setJets[j];
                         if (car != null)
                         {
                             _setJets.Insert(car, i);
@@ -189,9 +185,9 @@ namespace AirBomber
             {
                 // установка позиции
                 //_setJets.Get(i)?.SetObject(ccol * _placeSizeWidth, crow * _placeSizeHeight, _pictureWidth, _pictureHeight);
-                _setJets.Get(i)?.SetObject(rows - i % cols * _placeSizeWidth, i / cols * _placeSizeHeight + 3, _pictureWidth, _pictureHeight);
+                _setJets[i]?.SetObject(rows - i % cols * _placeSizeWidth, i / cols * _placeSizeHeight + 3, _pictureWidth, _pictureHeight);
-                _setJets.Get(i)?.DrawningObject(g);
+                _setJets[i]?.DrawningObject(g);
-                // (сначала передвигаемся влево)
+                //(сначала передвигаемся влево)
                 ccol++;
                 if (ccol >= cols)
                 {

AirBomber/AirBomber/SetJetGeneric.cs

@@ -9,23 +9,26 @@ namespace AirBomber
     internal class SetJetGeneric<T> where T : class
     {
         /// <summary>
-        /// Массив объектов, которые храним (самолетов)
+        /// Список объектов, которые храним (самолетов)
         /// </summary>
-        private readonly T[] _places;
+        private readonly List<T> _places;
 
         /// <summary>
-        /// Количество объектов в массиве
+        /// Количество объектов в списке
         /// </summary>
-        public int Count => _places.Length;
+        public int Count => _places.Count;
-        private int JetPlaces = 0;
+        /// <summary>
-
+        /// Ограничение максимального количества самолетов в списке
+        /// </summary>
+        private readonly int _maxCount;
         /// <summary>
         /// Конструктор
         /// </summary>
         /// <param name="count">Количество самолетов</param>
         public SetJetGeneric(int count)
         {
-            _places = new T[count];
+            _maxCount = count;
+            _places = new List<T>();
         }
 
         /// <summary>
@@ -34,29 +37,20 @@ namespace AirBomber
         /// <param name="jet">Добавляемый самолет</param>
         /// <param name="position">Позиция</param>
         /// <returns></returns>
-        public int Insert(T jet)
+        //public int Insert(T jet)
-        {
+        //{
-            return Insert(jet, 0);
+        //    return Insert(jet, 0);
-        }
+        //}
         public int Insert(T jet, int position = 0)
         {
-            if (position < 0 || position >= _places.Length || JetPlaces == _places.Length)
+            if (position < 0 || position >= _maxCount || _maxCount <= _places.Count)
             {
                 return -1;
             }
-            JetPlaces++;
+            _places.Insert(position, jet);
-            while (_places[position] != null)
+
-            {
+            _places.Remove(null);
-                for (int i = _places.Length - 1; i > 0; --i)
+
-                {
-                    if (_places[i] == null && _places[i - 1] != null)
-                    {
-                        _places[i] = _places[i - 1];
-                        _places[i - 1] = null;
-                    }
-                }
-            }
-            _places[position] = jet;
             return position;
         }
         /// <summary>
@@ -66,9 +60,13 @@ namespace AirBomber
         /// <returns></returns>
         public T Remove(int position)
         {
-            if (position < 0 || position >= _places.Length) return null;
+            if (position < 0 || position >= _maxCount) return null;
+
             T savedJet = _places[position];
+
             _places[position] = null;
+
+
             return savedJet;
         }
 
@@ -77,11 +75,40 @@ namespace AirBomber
         /// </summary>
         /// <param name="position">Позиция получаемого самолета</param>
         /// <returns></returns>
-        public T Get(int position)
+        public T this[int position]
         {
-            // проверка позиции
+            get
-            if (position < 0 || position >= _places.Length) return null;
+            {
-            return _places[position];
+                // проверка позиции
+                if (position < 0 || position >= _maxCount) return null;
+                return _places[position];
+            }
+            set
+            {
+                // проверка позиции
+                if (position < 0 || position >= _maxCount)
+                {
+                    _places[position] = value;
+                }
+            }
+        }
+        /// <summary>
+        /// Проход по набору до первого пустого
+        /// </summary>
+        /// <returns></returns>
+        public IEnumerable<T> GetJets()
+        {
+            foreach (var jet in _places)
+            {
+                if (jet != null)
+                {
+                    yield return jet;
+                }
+                else
+                {
+                    yield break;
+                }
+            }
         }
     }
 }