ProjectExcavator/ProjectExcavator/DrawingObjectExcavator.cs

@@ -12,7 +12,7 @@ namespace ProjectExcavator.MovementStrategy
     /// </summary>
     public class DrawingObjectExcavator : IMoveableObject
     {
-        private readonly DrawingExcavator? _drawingExcavator = null;
+        public DrawingExcavator _drawingExcavator { get; private set; }
         public DrawingObjectExcavator(DrawingExcavator drawingExcavator)
         {
             _drawingExcavator = drawingExcavator;

ProjectExcavator/ProjectExcavator/ExcavatorGenericCollection.cs

@@ -56,32 +56,33 @@ namespace ProjectExcavator.Generics
         /// <param name="collect"></param>
         /// <param name="obj"></param>
         /// <returns></returns>
-        public static int operator +(ExcavatorGenericCollection<T, U> collect, T?
+        public static bool operator +(ExcavatorGenericCollection<T, U> collect, T?
         obj)
         {
             if (obj == null)
             {
-                return -1;
+                return false;
             }
-            return collect?._collection.Insert(obj) ?? -1;
+            return collect?._collection.Insert(obj) ?? false;
         }
+
         /// <summary>
         /// Перегрузка оператора вычитания
         /// </summary>
         /// <param name="collect"></param>
         /// <param name="pos"></param>
         /// <returns></returns>
-        public static bool operator -(ExcavatorGenericCollection<T, U> collect, int
+        public static T? operator -(ExcavatorGenericCollection<T, U> collect, int
-        pos)
+pos)
         {
-            T? obj = collect._collection.Get(pos);
+            T? obj = collect._collection[pos];
             if (obj != null)
             {
                 collect._collection.Remove(pos);
-                return true;
             }
-            return false;
+            return obj;
         }
+
         /// <summary>
         /// Получение объекта IMoveableObject
         /// </summary>
@@ -89,7 +90,8 @@ namespace ProjectExcavator.Generics
         /// <returns></returns>
         public U? GetU(int pos)
         {
-            return (U?)_collection.Get(pos)?.GetMoveableObject;
+            return (U?)_collection[pos]?.GetMoveableObject;
+
         }
         /// <summary>
         /// Вывод всего набора объектов
@@ -133,12 +135,15 @@ namespace ProjectExcavator.Generics
             int height = _pictureHeight / _placeSizeHeight;
             for (int i = 0; i < _collection.Count; i++)
             {
-                DrawingExcavator? excavator = _collection.Get(i);
+                // TODO получение объекта
+                T? excavator = _collection[i];
                 if (excavator == null)
                     continue;
                 int r = i / width;
                 int s = width - 1 - (i % width);
+                // TODO установка позиции 
                 excavator.SetPosition(s * _placeSizeWidth, r * _placeSizeHeight);
+                // TODO прорисовка объекта
                 excavator.DrawTransport(g);
             }
         }

ProjectExcavator/ProjectExcavator/ExcavatorGenericStorage.cs

@@ -0,0 +1,83 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ProjectExcavator.DrawingObjects;
+using ProjectExcavator.MovementStrategy;
+
+namespace ProjectExcavator.Generics
+{
+    internal class ExcavatorGenericStorage
+    {
+        readonly Dictionary<string, ExcavatorGenericCollection<DrawingExcavator, DrawingObjectExcavator>> _excavatorStorages;
+        public List<string> Keys => _excavatorStorages.Keys.ToList();
+        private readonly int _pictureWidth;
+        private readonly int _pictureHeight;
+        public ExcavatorGenericStorage(int pictureWidth, int pictureHeight)
+        {
+            _excavatorStorages = new Dictionary<string, ExcavatorGenericCollection<DrawingExcavator, DrawingObjectExcavator>>();
+            _pictureWidth = pictureWidth;
+            _pictureHeight = pictureHeight;
+            _removedObjects = new LinkedList<DrawingObjectExcavator>();
+        }
+        public void AddSet(string name)
+        {
+            if (!_excavatorStorages.ContainsKey(name))
+            {
+                ExcavatorGenericCollection<DrawingExcavator, DrawingObjectExcavator> newSet = new ExcavatorGenericCollection<DrawingExcavator, DrawingObjectExcavator>(_pictureWidth, _pictureHeight);
+                _excavatorStorages.Add(name, newSet);
+            }
+        }
+        public void DelSet(string name)
+        {
+            if (_excavatorStorages.ContainsKey(name))
+            {
+                _excavatorStorages.Remove(name);
+            }
+        }
+        public ExcavatorGenericCollection<DrawingExcavator, DrawingObjectExcavator>? this[string ind]
+        {
+            get
+            {
+                if (_excavatorStorages.ContainsKey(ind))
+                {
+                    return _excavatorStorages[ind];
+                }
+                return null;
+            }
+        }
+        public DrawingObjectExcavator? this[string dictIndex, int objIndex]
+        {
+            get
+            {
+                if (_excavatorStorages.ContainsKey(dictIndex))
+                {
+                    var selectedDictElement = _excavatorStorages[dictIndex];
+                    var selectedObject = selectedDictElement.GetU(objIndex);
+                    return selectedObject;
+                }
+                return null;
+            }
+        }
+        private LinkedList<DrawingObjectExcavator> _removedObjects;
+
+        public DrawingObjectExcavator RemovedObject
+        {
+            set
+            {
+                _removedObjects.AddLast(value);
+            }
+            get
+            {
+                if (_removedObjects == null || _removedObjects.Count == 0)
+                {
+                    return null;
+                }
+                var removedObject = _removedObjects.Last();
+                _removedObjects.RemoveLast();
+                return removedObject;
+            }
+        }
+    }
+}

ProjectExcavator/ProjectExcavator/FormExcavator.cs

@@ -15,12 +15,13 @@ namespace ProjectExcavator
         public FormExcavator()
         {
             InitializeComponent();
-            comboBoxStrategy.Items.Add("Öåíòð");
-            comboBoxStrategy.Items.Add("Ãðàíèöà");
-
         }
-
+        public FormExcavator(DrawingExcavator drawingObject)
-        private void Draw()
+        {
+            _drawingExcavator = drawingObject;
+            InitializeComponent();
+        }
+        public void Draw()
         {
             if (_drawingExcavator == null)
             {

ProjectExcavator/ProjectExcavator/FormExcavatorCollection.Designer.cs

@@ -34,9 +34,16 @@
             this.buttonRemoveEx = new System.Windows.Forms.Button();
             this.buttonRefreshCollection = new System.Windows.Forms.Button();
             this.groupBox1 = new System.Windows.Forms.GroupBox();
+            this.groupBox2 = new System.Windows.Forms.GroupBox();
+            this.textBoxStorageName = new System.Windows.Forms.TextBox();
+            this.buttonDelObject = new System.Windows.Forms.Button();
+            this.listBoxStorages = new System.Windows.Forms.ListBox();
+            this.buttonAddObject = new System.Windows.Forms.Button();
             this.buttonGeneration = new System.Windows.Forms.Button();
+            this.buttonRemoveobj = new System.Windows.Forms.Button();
             ((System.ComponentModel.ISupportInitialize)(this.pictureBoxCollection)).BeginInit();
             this.groupBox1.SuspendLayout();
+            this.groupBox2.SuspendLayout();
             this.SuspendLayout();
             // 
             // pictureBoxCollection
@@ -50,14 +57,14 @@
             // 
             // maskedTextBoxNumber
             // 
-            this.maskedTextBoxNumber.Location = new System.Drawing.Point(26, 125);
+            this.maskedTextBoxNumber.Location = new System.Drawing.Point(35, 339);
             this.maskedTextBoxNumber.Name = "maskedTextBoxNumber";
             this.maskedTextBoxNumber.Size = new System.Drawing.Size(100, 23);
             this.maskedTextBoxNumber.TabIndex = 1;
             // 
             // buttonAddEx
             // 
-            this.buttonAddEx.Location = new System.Drawing.Point(6, 57);
+            this.buttonAddEx.Location = new System.Drawing.Point(13, 310);
             this.buttonAddEx.Name = "buttonAddEx";
             this.buttonAddEx.Size = new System.Drawing.Size(150, 23);
             this.buttonAddEx.TabIndex = 2;
@@ -67,36 +74,89 @@
             // 
             // buttonRemoveEx
             // 
-            this.buttonRemoveEx.Location = new System.Drawing.Point(6, 166);
+            this.buttonRemoveEx.Location = new System.Drawing.Point(13, 368);
             this.buttonRemoveEx.Name = "buttonRemoveEx";
             this.buttonRemoveEx.Size = new System.Drawing.Size(150, 23);
             this.buttonRemoveEx.TabIndex = 3;
             this.buttonRemoveEx.Text = "Удалить экскаватор";
             this.buttonRemoveEx.UseVisualStyleBackColor = true;
+            this.buttonRemoveEx.Click += new System.EventHandler(this.ButtonRemoveEx_Click);
             // 
             // buttonRefreshCollection
             // 
-            this.buttonRefreshCollection.Location = new System.Drawing.Point(6, 230);
+            this.buttonRefreshCollection.Location = new System.Drawing.Point(13, 432);
             this.buttonRefreshCollection.Name = "buttonRefreshCollection";
             this.buttonRefreshCollection.Size = new System.Drawing.Size(148, 23);
             this.buttonRefreshCollection.TabIndex = 4;
             this.buttonRefreshCollection.Text = "Обновить коллекцию";
             this.buttonRefreshCollection.UseVisualStyleBackColor = true;
+            this.buttonRefreshCollection.Click += new System.EventHandler(this.ButtonRefreshCollection_Click);
             // 
             // groupBox1
             // 
-            this.groupBox1.Controls.Add(this.buttonGeneration);
+            this.groupBox1.Controls.Add(this.buttonRemoveobj);
+            this.groupBox1.Controls.Add(this.groupBox2);
             this.groupBox1.Controls.Add(this.buttonAddEx);
             this.groupBox1.Controls.Add(this.buttonRefreshCollection);
             this.groupBox1.Controls.Add(this.maskedTextBoxNumber);
             this.groupBox1.Controls.Add(this.buttonRemoveEx);
-            this.groupBox1.Location = new System.Drawing.Point(749, 0);
+            this.groupBox1.Location = new System.Drawing.Point(741, 0);
             this.groupBox1.Name = "groupBox1";
-            this.groupBox1.Size = new System.Drawing.Size(160, 461);
+            this.groupBox1.Size = new System.Drawing.Size(168, 461);
             this.groupBox1.TabIndex = 5;
             this.groupBox1.TabStop = false;
             this.groupBox1.Text = "Инструменты";
             // 
+            // groupBox2
+            // 
+            this.groupBox2.Controls.Add(this.textBoxStorageName);
+            this.groupBox2.Controls.Add(this.buttonDelObject);
+            this.groupBox2.Controls.Add(this.listBoxStorages);
+            this.groupBox2.Controls.Add(this.buttonAddObject);
+            this.groupBox2.Location = new System.Drawing.Point(13, 28);
+            this.groupBox2.Name = "groupBox2";
+            this.groupBox2.Size = new System.Drawing.Size(143, 214);
+            this.groupBox2.TabIndex = 5;
+            this.groupBox2.TabStop = false;
+            this.groupBox2.Text = "Наборы";
+            // 
+            // textBoxStorageName
+            // 
+            this.textBoxStorageName.Location = new System.Drawing.Point(15, 30);
+            this.textBoxStorageName.Name = "textBoxStorageName";
+            this.textBoxStorageName.Size = new System.Drawing.Size(122, 23);
+            this.textBoxStorageName.TabIndex = 6;
+            // 
+            // buttonDelObject
+            // 
+            this.buttonDelObject.Location = new System.Drawing.Point(15, 185);
+            this.buttonDelObject.Name = "buttonDelObject";
+            this.buttonDelObject.Size = new System.Drawing.Size(122, 23);
+            this.buttonDelObject.TabIndex = 8;
+            this.buttonDelObject.Text = "Удалить набор";
+            this.buttonDelObject.UseVisualStyleBackColor = true;
+            this.buttonDelObject.Click += new System.EventHandler(this.ButtonDelObject_Click);
+            // 
+            // listBoxStorages
+            // 
+            this.listBoxStorages.FormattingEnabled = true;
+            this.listBoxStorages.ItemHeight = 15;
+            this.listBoxStorages.Location = new System.Drawing.Point(15, 88);
+            this.listBoxStorages.Name = "listBoxStorages";
+            this.listBoxStorages.Size = new System.Drawing.Size(122, 79);
+            this.listBoxStorages.TabIndex = 6;
+            this.listBoxStorages.Click += new System.EventHandler(this.ListBoxObjects_SelectedIndexChanged);
+            // 
+            // buttonAddObject
+            // 
+            this.buttonAddObject.Location = new System.Drawing.Point(15, 59);
+            this.buttonAddObject.Name = "buttonAddObject";
+            this.buttonAddObject.Size = new System.Drawing.Size(122, 23);
+            this.buttonAddObject.TabIndex = 7;
+            this.buttonAddObject.Text = "Добавить набор";
+            this.buttonAddObject.UseVisualStyleBackColor = true;
+            this.buttonAddObject.Click += new System.EventHandler(this.ButtonAddObject_Click);
+            // 
             // buttonGeneration
             // 
             this.buttonGeneration.Location = new System.Drawing.Point(6, 332);
@@ -107,6 +167,16 @@
             this.buttonGeneration.UseVisualStyleBackColor = true;
             this.buttonGeneration.Click += new System.EventHandler(this.buttonGeneration_Click);
             // 
+            // buttonRemoveobj
+            // 
+            this.buttonRemoveobj.Location = new System.Drawing.Point(16, 265);
+            this.buttonRemoveobj.Name = "buttonRemoveobj";
+            this.buttonRemoveobj.Size = new System.Drawing.Size(145, 23);
+            this.buttonRemoveobj.TabIndex = 6;
+            this.buttonRemoveobj.Text = "Удалённые обьекты";
+            this.buttonRemoveobj.UseVisualStyleBackColor = true;
+            this.buttonRemoveobj.Click += new System.EventHandler(this.buttonRemoveobj_Click);
+            // 
             // FormExcavatorCollection
             // 
             this.ClientSize = new System.Drawing.Size(909, 461);
@@ -116,6 +186,8 @@
             ((System.ComponentModel.ISupportInitialize)(this.pictureBoxCollection)).EndInit();
             this.groupBox1.ResumeLayout(false);
             this.groupBox1.PerformLayout();
+            this.groupBox2.ResumeLayout(false);
+            this.groupBox2.PerformLayout();
             this.ResumeLayout(false);
 
         }
@@ -128,6 +200,12 @@
         private Button buttonRemoveEx;
         private Button buttonRefreshCollection;
         private GroupBox groupBox1;
+        private GroupBox groupBox2;
+        private TextBox textBoxStorageName;
+        private Button buttonDelObject;
+        private ListBox listBoxStorages;
+        private Button buttonAddObject;
         private Button buttonGeneration;
+        private Button buttonRemoveobj;
     }
 }

ProjectExcavator/ProjectExcavator/FormExcavatorCollection.cs

@@ -12,16 +12,105 @@ namespace ProjectExcavator
         /// <summary>
         /// Набор объектов
         /// </summary>
-        private readonly ExcavatorGenericCollection<DrawingExcavator,
+        private readonly ExcavatorGenericStorage _storage;
-        DrawingObjectExcavator> _excavator;
         /// <summary>
         /// Конструктор
         /// </summary>
         public FormExcavatorCollection()
         {
             InitializeComponent();
-            _excavator = new ExcavatorGenericCollection<DrawingExcavator,
+            _storage = new ExcavatorGenericStorage(pictureBoxCollection.Width, pictureBoxCollection.Height);
-            DrawingObjectExcavator>(pictureBoxCollection.Width, pictureBoxCollection.Height);
+        }
+        /// <summary>
+        /// Заполнение listBoxObjects
+        /// </summary>
+        private void ReloadObjects()
+        {
+            int index = listBoxStorages.SelectedIndex;
+            listBoxStorages.Items.Clear();
+            for (int i = 0; i < _storage.Keys.Count; i++)
+            {
+                listBoxStorages.Items.Add(_storage.Keys[i]);
+            }
+            if (listBoxStorages.Items.Count > 0 && (index == -1 || index
+            >= listBoxStorages.Items.Count))
+            {
+                listBoxStorages.SelectedIndex = 0;
+            }
+            else if (listBoxStorages.Items.Count > 0 && index > -1 &&
+            index < listBoxStorages.Items.Count)
+            {
+                listBoxStorages.SelectedIndex = index;
+            }
+        }
+        /// <summary>
+        /// Добавление набора в коллекцию
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void ButtonAddObject_Click(object sender, EventArgs e)
+        {
+            if (string.IsNullOrEmpty(textBoxStorageName.Text))
+            {
+                MessageBox.Show("Не все данные заполнены", "Ошибка",
+                MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            _storage.AddSet(textBoxStorageName.Text);
+            ReloadObjects();
+            if (listBoxStorages.SelectedIndex == -1)
+            {
+                return;
+            }
+            var obj = _storage[listBoxStorages.SelectedItem.ToString() ??
+            string.Empty];
+            if (obj == null)
+            {
+                return;
+            }
+            pictureBoxCollection.Image = obj.ShowExcavator();
+        }
+        /// <summary>
+        /// Выбор набора
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void ListBoxObjects_SelectedIndexChanged(object sender,
+        EventArgs e)
+        {
+            pictureBoxCollection.Image =
+            _storage[listBoxStorages.SelectedItem?.ToString() ?? string.Empty]?.ShowExcavator();
+        }
+        /// <summary>
+        /// Удаление набора
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void ButtonDelObject_Click(object sender, EventArgs e)
+        {
+            if (listBoxStorages.SelectedIndex == -1)
+            {
+                return;
+            }
+            if (MessageBox.Show($"Удалить объект {listBoxStorages.SelectedItem}?", "Удаление", MessageBoxButtons.YesNo,
+        MessageBoxIcon.Question) == DialogResult.Yes)
+            {
+                _storage.DelSet(listBoxStorages.SelectedItem.ToString()
+                ?? string.Empty);
+                ReloadObjects();
+                if (listBoxStorages.SelectedIndex == -1)
+                {
+                    return;
+                }
+                var obj = _storage[listBoxStorages.SelectedItem.ToString() ??
+                string.Empty];
+                if (obj == null)
+                {
+                    return;
+                }
+                MessageBox.Show("Набор удален");
+                pictureBoxCollection.Image = obj.ShowExcavator();
+            }
         }
         /// <summary>
         /// Добавление объекта в набор
@@ -30,14 +119,23 @@ namespace ProjectExcavator
         /// <param name="e"></param>
         private void ButtonAddEx_Click(object sender, EventArgs e)
         {
+            if (listBoxStorages.SelectedIndex == -1)
+            {
+                return;
+            }
+            var obj = _storage[listBoxStorages.SelectedItem.ToString() ??
+            string.Empty];
+            if (obj == null)
+            {
+                return;
+            }
             FormExcavator form = new();
             if (form.ShowDialog() == DialogResult.OK)
             {
-                int result = _excavator + form.SelectedExcavator;
+                if (obj + form.SelectedExcavator)
-                if (result != -2)
                 {
                     MessageBox.Show("Объект добавлен");
-                    pictureBoxCollection.Image = _excavator.ShowExcavator();
+                    pictureBoxCollection.Image = obj.ShowExcavator();
                 }
                 else
                 {
@@ -52,16 +150,28 @@ namespace ProjectExcavator
         /// <param name="e"></param>
         private void ButtonRemoveEx_Click(object sender, EventArgs e)
         {
+            if (listBoxStorages.SelectedIndex == -1)
+            {
+                return;
+            }
+            var obj = _storage[listBoxStorages.SelectedItem.ToString() ??
+            string.Empty];
+            if (obj == null)
+            {
+                return;
+            }
             if (MessageBox.Show("Удалить объект?", "Удаление",
             MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.No)
             {
                 return;
             }
             int pos = Convert.ToInt32(maskedTextBoxNumber.Text);
-            if (_excavator - pos != null)
+            var removableObject = _storage[listBoxStorages.SelectedItem?.ToString() ?? string.Empty, pos];
+            if (_storage[listBoxStorages.SelectedItem?.ToString() ?? string.Empty] - pos != null)
             {
                 MessageBox.Show("Объект удален");
-                pictureBoxCollection.Image = _excavator.ShowExcavator();
+                _storage.RemovedObject = (DrawingObjectExcavator)removableObject;
+                pictureBoxCollection.Image = obj.ShowExcavator();
             }
             else
             {
@@ -75,7 +185,17 @@ namespace ProjectExcavator
         /// <param name="e"></param>
         private void ButtonRefreshCollection_Click(object sender, EventArgs e)
         {
-            pictureBoxCollection.Image = _excavator.ShowExcavator();
+            if (listBoxStorages.SelectedIndex == -1)
+            {
+                return;
+            }
+            var obj = _storage[listBoxStorages.SelectedItem.ToString() ??
+            string.Empty];
+            if (obj == null)
+            {
+                return;
+            }
+            pictureBoxCollection.Image = obj.ShowExcavator();
         }
 
         private void buttonGeneration_Click(object sender, EventArgs e)
@@ -83,5 +203,18 @@ namespace ProjectExcavator
             RandGeneration form = new();
             form.ShowDialog();
         }
+
+        private void buttonRemoveobj_Click(object sender, EventArgs e)
+        {
+            DrawingObjectExcavator removedObject = _storage.RemovedObject;
+            if (removedObject == null)
+            {
+                MessageBox.Show("Не удалось показать удаленные объекты");
+                return;
+            }
+            FormExcavator formRemovedObject = new FormExcavator(removedObject._drawingExcavator);
+            formRemovedObject.Show();
+            formRemovedObject.Draw();
+        }
     }
 }

ProjectExcavator/ProjectExcavator/SetGeneric.cs

@@ -14,34 +14,40 @@ namespace ProjectExcavator.Generics
     where T : class
     {
         /// <summary>
-        /// Массив объектов, которые храним
+        /// Список объектов, которые храним
         /// </summary>
-        private readonly T?[] _places;
+        private readonly List<T?> _places;
         /// <summary>
         /// Количество объектов в массиве
         /// </summary>
-        public int Count => _places.Length;
+        public int Count => _places.Count;
+        /// <summary>
+        /// Максимальное количество объектов в списке
+        /// </summary>
+        private readonly int _maxCount;
         /// <summary>
         /// Конструктор
         /// </summary>
         /// <param name="count"></param>
         public SetGeneric(int count)
         {
-            _places = new T?[count];
+            _maxCount = count;
+            _places = new List<T?>(count);
         }
         /// <summary>
         /// Добавление объекта в набор
         /// </summary>
         /// <param name="excavator">Добавляемый экскаватор</param>
         /// <returns></returns>
-        public int Insert(T excavator)
+        public bool Insert(T excavator)
         {
-            for (int i = _places.Length - 1; i > 0; i--)
+            // TODO вставка в начало набора
+            if (_places.Count >= _maxCount)
             {
-                _places[i] = _places[i - 1];
+                return false;
             }
-            _places[0] = excavator;
+            _places.Insert(0, excavator);
-            return Insert(excavator, 0);
+            return true;
         }
         /// <summary>
         /// Добавление объекта в набор на конкретную позицию
@@ -49,66 +55,83 @@ namespace ProjectExcavator.Generics
         /// <param name="excavator">Добавляемый экскаватор</param>
         /// <param name="position">Позиция</param>
         /// <returns></returns>
-        public int Insert(T excavator, int position)
+        public bool Insert(T excavator, int position)
         {
-            if (position < 0 || position >= _places.Length)
+            // TODO проверка позиции
+            if (position < 0 || position >= _places.Count)
             {
-                return -1;
+                return false;
             }
-
+            // TODO проверка, что есть место для вставки
-            if (_places[position] != null)
+            if (_places.Count >= _maxCount)
             {
-                return -1;
+                return false;
             }
-
+            // TODO вставка по позиции
-            int NullIndex = 0;
+            _places.Insert(position, excavator);
-            for (int i = position; i < _places.Length; i++)
+            return true;
-            {
-                if (_places[i] == null)
-                {
-                    NullIndex = i;
-                    break;
-                }
-            }
-
-            if (NullIndex == 0)
-            {
-                return -1;
-            }
-
-            for (int i = NullIndex; i >= position; i--)
-            {
-                _places[i + 1] = _places[i];
-            }
-            _places[position] = excavator;
-            return position;
         }
         /// <summary>
         /// Удаление объекта из набора с конкретной позиции
         /// </summary>
         /// <param name="position"></param>
         /// <returns></returns>
-        public bool Remove(int position)
+        public T Remove(int position)
         {
-            if (position < 0 || position >= _places.Length)
+            if (position > Count || _places[position] == null)
             {
-                return false;
+                return null;
             }
-
+            var result = _places[position];
-            _places[position] = null;
+            _places.RemoveAt(position);
-            return true;
+            return result;
         }
         /// <summary>
         /// Получение объекта из набора по позиции
         /// </summary>
         /// <param name="position"></param>
         /// <returns></returns>
-        public T? Get(int position)
+        public T? this[int position]
         {
-            if (position < 0 || position >= _places.Length)
+            get
-                return null;
+            {
-
+                // TODO проверка позиции
-            return _places[position];
+                if (position < 0 || position >= _places.Count)
+                {
+                    return null;
+                }
+                return _places[position];
+            }
+            set
+            {
+                // TODO проверка позиции
+                if (position < 0 || position >= _places.Count)
+                {
+                    return;
+                }
+                // TODO проверка свободных мест в списке
+                if (_places.Count >= _maxCount)
+                {
+                    return;
+                }
+                // TODO вставка в список по позиции
+                _places.Insert(position, value);
+            }
+        }
+        /// <summary>
+        /// Проход по списку
+        /// </summary>
+        /// <returns></returns>
+        public IEnumerable<T?> GetExcavators(int? maxExcavators = null)
+        {
+            for (int i = 0; i < _places.Count; ++i)
+            {
+                yield return _places[i];
+                if (maxExcavators.HasValue && i == maxExcavators.Value)
+                {
+                    yield break;
+                }
+            }
         }
     }
 }