Locomotive/Locomotive/FormMapWithSetLocomotives.cs

@@ -55,7 +55,7 @@ namespace Locomotive
             if (form.ShowDialog() == DialogResult.OK)
             {
                 DrawningObjectLocomotive locomotive = new(form.SelectedLocomotive);
-                if (_mapLocomotivesCollectionGeneric + locomotive)
+                if (_mapLocomotivesCollectionGeneric + locomotive != -1)
                 {
                     MessageBox.Show("Объект добавлен");
                     pictureBox.Image = _mapLocomotivesCollectionGeneric.ShowSet();
@@ -78,7 +78,7 @@ namespace Locomotive
                 return;
             }
             int pos = Convert.ToInt32(maskedTextBoxPosition.Text);
-            if (_mapLocomotivesCollectionGeneric - pos)
+            if (_mapLocomotivesCollectionGeneric - pos is not null)
             {
                 MessageBox.Show("Объект удален");
                 pictureBox.Image = _mapLocomotivesCollectionGeneric.ShowSet();

Locomotive/Locomotive/MapWithSetLocomotivesGeneric.cs

@@ -33,12 +33,12 @@ namespace Locomotive
             _map = map;
         }
         /// Перегрузка оператора сложения
-        public static bool operator +(MapWithSetLocomotivesGeneric<T, U> map, T locomotive)
+        public static int operator +(MapWithSetLocomotivesGeneric<T, U> map, T locomotive)
         {
             return map._setLocomotives.Insert(locomotive);
         }
         /// Перегрузка оператора вычитания
-        public static bool operator -(MapWithSetLocomotivesGeneric<T, U> map, int position)
+        public static T operator -(MapWithSetLocomotivesGeneric<T, U> map, int position)
         {
             return map._setLocomotives.Remove(position);
         }

Locomotive/Locomotive/SetLocomotivesGeneric.cs

@@ -19,19 +19,19 @@ namespace Locomotive
             _places = new T[count];
         }
         /// Добавление объекта в набор
-        public bool Insert(T locomotive)
+        public int Insert(T locomotive)
         {
             return Insert(locomotive, 0);
         }
         /// Добавление объекта в набор на конкретную позицию
-        public bool Insert(T locomotive, int position)
+        public int Insert(T locomotive, int position)
         {
-            if (position >= _places.Length|| position < 0) return false;
+            if (position >= _places.Length|| position < 0) return -1;
 
             if (_places[position] == null)
             {
                 _places[position] = locomotive;
-                return true;
+                return position;
             }
 
             int emptyEl = -1;
@@ -47,7 +47,7 @@ namespace Locomotive
 
             if (emptyEl == -1)
             {
-                return false;
+                return -1;
             }
 
             for (int i = emptyEl; i > position; i--)
@@ -55,14 +55,15 @@ namespace Locomotive
                 _places[i] = _places[i - 1];
             }
             _places[position] = locomotive;
-            return true;
+            return position;
         }
         /// Удаление объекта из набора с конкретной позиции
-        public bool Remove(int position)
+        public T Remove(int position)
         {
-            if (position >= _places.Length || position < 0) return false;
+            if (position >= _places.Length || position < 0) return null;
+            T result = _places[position];
             _places[position] = null;
-            return true;
+            return result;
         }
         /// Получение объекта из набора по позиции
         public T Get(int position)