Excavator/Excavator/Drawnings/DirectionType.cs

@@ -23,5 +23,10 @@ public enum DirectionType
     /// <summary>
     /// Вправо
     /// </summary>
-    Right = 4
+    Right = 4,
+        
+    /// <summary>
+    /// Неизвестное направление
+    /// </summary>
+    Unknow = -1
 }

Excavator/Excavator/Drawnings/DrawningSimpleExcavator.cs

@@ -45,6 +45,26 @@ public class DrawningSimpleExcavator
     /// </summary>
     private readonly int _drawningExcavatorHeight = 80;
 
+    /// <summary>
+	/// Координата X объекта
+	/// </summary>
+	public int? GetPosX => _startPosX;
+
+    /// <summary>
+    /// Координата Y объекта
+    /// </summary>
+    public int? GetPosY => _startPosY;
+
+    /// <summary>
+	/// Ширина объекта
+	/// </summary>
+	public int GetWidth => _drawningExcavatorWidth;
+
+    /// <summary>
+    /// Высота объекта
+    /// </summary>
+    public int GetHeight => _drawningExcavatorHeight;
+
     /// <summary>
     /// Пустой конструктор
     /// </summary>

Excavator/Excavator/FormExcavator.Designer.cs

@@ -35,6 +35,8 @@
             buttonDown = new Button();
             buttonRight = new Button();
             buttonCreateSimpleExcavator = new Button();
+            comboBoxStrategy = new ComboBox();
+            buttonStrategyStep = new Button();
             ((System.ComponentModel.ISupportInitialize)pictureBoxExcavator).BeginInit();
             SuspendLayout();
             // 
@@ -117,11 +119,34 @@
             buttonCreateSimpleExcavator.UseVisualStyleBackColor = true;
             buttonCreateSimpleExcavator.Click += ButtonCreateSimpleExcavator_Click;
             // 
+            // comboBoxStrategy
+            // 
+            comboBoxStrategy.Anchor = AnchorStyles.Top | AnchorStyles.Right;
+            comboBoxStrategy.FormattingEnabled = true;
+            comboBoxStrategy.Items.AddRange(new object[] { "К центру", "К краю " });
+            comboBoxStrategy.Location = new Point(790, 12);
+            comboBoxStrategy.Name = "comboBoxStrategy";
+            comboBoxStrategy.Size = new Size(121, 23);
+            comboBoxStrategy.TabIndex = 7;
+            // 
+            // buttonStrategyStep
+            // 
+            buttonStrategyStep.Anchor = AnchorStyles.Top | AnchorStyles.Right;
+            buttonStrategyStep.Location = new Point(790, 41);
+            buttonStrategyStep.Name = "buttonStrategyStep";
+            buttonStrategyStep.Size = new Size(121, 23);
+            buttonStrategyStep.TabIndex = 8;
+            buttonStrategyStep.Text = "Шаг";
+            buttonStrategyStep.UseVisualStyleBackColor = true;
+            buttonStrategyStep.Click += ButtonStrategyStep_Click;
+            // 
             // FormExcavator
             // 
             AutoScaleDimensions = new SizeF(7F, 15F);
             AutoScaleMode = AutoScaleMode.Font;
             ClientSize = new Size(923, 597);
+            Controls.Add(buttonStrategyStep);
+            Controls.Add(comboBoxStrategy);
             Controls.Add(buttonCreateSimpleExcavator);
             Controls.Add(buttonRight);
             Controls.Add(buttonDown);
@@ -144,5 +169,7 @@
         private Button buttonDown;
         private Button buttonRight;
         private Button buttonCreateSimpleExcavator;
+        private ComboBox comboBoxStrategy;
+        private Button buttonStrategyStep;
     }
 }

Excavator/Excavator/FormExcavator.cs

@@ -1,4 +1,6 @@
 using Excavator.Drawnings;
+using Excavator.Entities;
+using Excavator.MovementSrtategy;
 
 namespace Excavator;
 
@@ -12,12 +14,15 @@ public partial class FormExcavator : Form
     /// </summary>
     private DrawningSimpleExcavator? _drawningSimpleExcavator;
 
+    private AbstractStrategy? _strategy;
+
     /// <summary>
     /// Конструктор формы
     /// </summary>
     public FormExcavator()
     {
         InitializeComponent();
+        _strategy = null;
     }
 
     /// <summary>
@@ -61,7 +66,7 @@ public partial class FormExcavator : Form
 
         _drawningSimpleExcavator.SetPictureSize(pictureBoxExcavator.Width, pictureBoxExcavator.Height);
         _drawningSimpleExcavator.SetPosition(random.Next(10, 100), random.Next(10, 100));
-        //_strategy = null;
+        _strategy = null;
         //comboBoxStrategy.Enabled = true;
         Draw();
 
@@ -122,4 +127,47 @@ public partial class FormExcavator : Form
             Draw();
         }
     }
+    /// <summary>
+	/// Обработка нажатия кнопки "Шаг"
+	/// </summary>
+	/// <param name="sender"></param>
+	/// <param name="e"></param>
+	private void ButtonStrategyStep_Click(object sender, EventArgs e)
+    {
+        if (_drawningSimpleExcavator == null)
+        {
+            return;
+        }
+
+        if (comboBoxStrategy.Enabled)
+        {
+            _strategy = comboBoxStrategy.SelectedIndex switch
+            {
+                0 => new MoveToCenter(),
+                1 => new MoveToBorder(),
+                _ => null,
+            };
+            if (_strategy == null)
+            {
+                return;
+            }
+            _strategy.SetData(new MoveableSimpleExcavator(_drawningSimpleExcavator), pictureBoxExcavator.Width, pictureBoxExcavator.Height);
+        }
+
+        if (_strategy == null)
+        {
+            return;
+        }
+
+        comboBoxStrategy.Enabled = false;
+        _strategy.MakeStep();
+        Draw();
+
+        if (_strategy.GetStatus() == StrategyStatus.Finish)
+        {
+            comboBoxStrategy.Enabled = true;
+            _strategy = null;
+        }
+    }
+
 }

Excavator/Excavator/MovementSrtategy/AbstractStrategy.cs

@@ -0,0 +1,139 @@
+using Excavator.MovementStrategy;
+
+namespace Excavator.MovementSrtategy;
+
+public abstract class AbstractStrategy
+{
+    /// <summary>
+    /// Перемещаемый объект
+    /// </summary>
+    private IMoveableObject? _moveableObject;
+
+    /// <summary>
+    /// Статус перемещения
+    /// </summary>
+    private StrategyStatus _state = StrategyStatus.NotInit;
+
+    /// <summary>
+    /// Ширина поля
+    /// </summary>
+    protected int FieldWidth { get; private set; }
+
+    /// <summary>
+    /// Высота поля
+    /// </summary>
+    protected int FieldHeight { get; private set; }
+
+    /// <summary>
+    /// Статус перемещения
+    /// </summary>
+    public StrategyStatus GetStatus() { return _state; }
+
+    /// <summary>
+    /// Установка данных
+    /// </summary>
+    /// <param name="moveableObject">Перемещаемый объект</param>
+    /// <param name="width">Ширина поля</param>
+    /// <param name="height">Высота поля</param>
+    public void SetData(IMoveableObject moveableObject, int width, int height)
+    {
+        if (moveableObject == null)
+        {
+            _state = StrategyStatus.NotInit;
+            return;
+        }
+
+        _state = StrategyStatus.InProgress;
+        _moveableObject = moveableObject;
+        FieldWidth = width;
+        FieldHeight = height;
+    }
+
+    /// <summary>
+    /// Шаг перемещения
+    /// </summary>
+    public void MakeStep()
+    {
+        if (_state != StrategyStatus.InProgress)
+        {
+            return;
+        }
+
+        if (IsTargetDestinaion())
+        {
+            _state = StrategyStatus.Finish;
+            return;
+        }
+
+        MoveToTarget();
+    }
+
+    /// <summary>
+    /// Перемещение влево
+    /// </summary>
+    /// <returns>Результат перемещения (true - удалось переместиться, false - неудача)</returns>
+    protected bool MoveLeft() => MoveTo(MovementDirection.Left);
+
+    /// <summary>
+    /// Перемещение вправо
+    /// </summary>
+    /// <returns>Результат перемещения (true - удалось переместиться, false - неудача)</returns>
+    protected bool MoveRight() => MoveTo(MovementDirection.Right);
+
+    /// <summary>
+    /// Перемещение вверх
+    /// </summary>
+    /// <returns>Результат перемещения (true - удалось переместиться, false - неудача)</returns>
+    protected bool MoveUp() => MoveTo(MovementDirection.Up);
+
+    /// <summary>
+    /// Перемещение вниз
+    /// </summary>
+    /// <returns>Результат перемещения (true - удалось переместиться, false - неудача)</returns>
+    protected bool MoveDown() => MoveTo(MovementDirection.Down);
+
+    /// <summary>
+    /// Параметры объекта
+    /// </summary>
+    protected ObjectParameters? GetObjectParameters => _moveableObject?.GetObjectParameters;
+
+    /// <summary>
+    /// Шаг объекта
+    /// </summary>
+    /// <returns></returns>
+    protected int? GetStep()
+    {
+        if (_state != StrategyStatus.InProgress)
+        {
+            return null;
+        }
+        return _moveableObject?.GetStep;
+    }
+
+    /// <summary>
+    /// Перемещение к цели
+    /// </summary>
+    protected abstract void MoveToTarget();
+
+    /// <summary>
+    /// Достигнута ли цель
+    /// </summary>
+    /// <returns></returns>
+    protected abstract bool IsTargetDestinaion();
+
+    /// <summary>
+    /// Попытка перемещения в требуемом направлении
+    /// </summary>
+    /// <param name="movementDirection">Направление</param>
+    /// <returns>Результат попытки (true - удалось переместиться, false - неудача)</returns>
+    private bool MoveTo(MovementDirection movementDirection)
+    {
+        if (_state != StrategyStatus.InProgress)
+        {
+            return false;
+        }
+
+        return _moveableObject?.TryMoveObject(movementDirection) ?? false;
+    }
+}
+

Excavator/Excavator/MovementSrtategy/IMoveableObject.cs

@@ -0,0 +1,24 @@
+using Excavator.MovementStrategy;
+
+namespace Excavator.MovementSrtategy;
+
+public interface IMoveableObject
+{
+    /// <summary>
+    /// Получение координаты объекта
+    /// </summary>
+    ObjectParameters? GetObjectParameters { get; }
+
+    /// <summary>
+    /// Шаг
+    /// </summary>
+    int GetStep { get; }
+
+    /// <summary>
+    /// Попытка перемстить объект
+    /// </summary>
+    /// <param name="direction">Направление</param>
+    /// <returns></returns>
+    bool TryMoveObject(MovementDirection direction);
+
+}

Excavator/Excavator/MovementSrtategy/MoveToBorder.cs

@@ -0,0 +1,39 @@
+namespace Excavator.MovementSrtategy;
+
+public class MoveToBorder : AbstractStrategy
+{
+    /// <summary>
+    /// Стратегия перемещения объекта к Краю экрана
+    /// </summary>
+    protected override bool IsTargetDestinaion()
+    {
+        ObjectParameters? objParams = GetObjectParameters;
+        if (objParams == null)
+        {
+            return false;
+        }
+        return objParams.RightBorder + GetStep() >= FieldWidth &&
+            objParams.DownBorder + GetStep() >= FieldHeight;
+    }
+    protected override void MoveToTarget()
+    {
+        ObjectParameters? objParams = GetObjectParameters;
+        if (objParams == null)
+        {
+            return;
+        }
+
+        int diffX = objParams.RightBorder - FieldWidth;
+        if (Math.Abs(diffX) > GetStep())
+        {
+            MoveRight();
+        }
+
+        int diffY = objParams.DownBorder - FieldHeight;
+        if (Math.Abs(diffY) > GetStep())
+        {
+            MoveDown();
+        }
+    }
+}
+

Excavator/Excavator/MovementSrtategy/MoveToCenter.cs

@@ -0,0 +1,55 @@
+namespace Excavator.MovementSrtategy;
+
+/// <summary>
+/// Стратегия перемещения объекта в центр экрана
+/// </summary>
+public class MoveToCenter : AbstractStrategy
+{
+    protected override bool IsTargetDestinaion()
+    {
+        ObjectParameters? objParams = GetObjectParameters;
+        if (objParams == null)
+        {
+            return false;
+        }
+
+        return objParams.ObjectMiddleHorizontal - GetStep() <= FieldWidth / 2 && objParams.ObjectMiddleHorizontal + GetStep() >= FieldWidth / 2 &&
+            objParams.ObjectMiddleVertical - GetStep() <= FieldHeight / 2 && objParams.ObjectMiddleVertical + GetStep() >= FieldHeight / 2;
+    }
+
+    protected override void MoveToTarget()
+    {
+        ObjectParameters? objParams = GetObjectParameters;
+        if (objParams == null)
+        {
+            return;
+        }
+
+        int diffX = objParams.ObjectMiddleHorizontal - FieldWidth / 2;
+        if (Math.Abs(diffX) > GetStep())
+        {
+            if (diffX > 0)
+            {
+                MoveLeft();
+            }
+            else
+            {
+                MoveRight();
+            }
+        }
+
+        int diffY = objParams.ObjectMiddleVertical - FieldHeight / 2;
+        if (Math.Abs(diffY) > GetStep())
+        {
+            if (diffY > 0)
+            {
+                MoveUp();
+            }
+            else
+            {
+                MoveDown();
+            }
+        }
+    }
+}
+

Excavator/Excavator/MovementSrtategy/MoveableSimpleExcavator.cs

@@ -0,0 +1,65 @@
+using Excavator.Drawnings;
+using Excavator.MovementStrategy;
+
+namespace Excavator.MovementSrtategy;
+
+/// <summary>
+/// Класс-реализация IMoveableObject с использованием Drawningexcavator
+/// </summary>
+public class MoveableSimpleExcavator : IMoveableObject
+{
+    /// <summary>
+    /// Поле-объект класса Drawningexcavator или его наследника
+    /// </summary>
+    private readonly DrawningSimpleExcavator? _excavator = null;
+
+    /// <summary>
+    /// Конструктор
+    /// </summary>
+    /// <param name="excavator">Объект класса Drawningexcavator</param>
+    public MoveableSimpleExcavator(DrawningSimpleExcavator excavator)
+    {
+        _excavator = excavator;
+    }
+
+    public ObjectParameters? GetObjectParameters
+    {
+        get
+        {
+            if (_excavator == null || _excavator.EntitySimpleExcavator == null || !_excavator.GetPosX.HasValue || !_excavator.GetPosY.HasValue)
+            {
+                return null;
+            }
+            return new ObjectParameters(_excavator.GetPosX.Value, _excavator.GetPosY.Value, _excavator.GetWidth, _excavator.GetHeight);
+        }
+    }
+
+    public int GetStep => (int)(_excavator?.EntitySimpleExcavator?.Step ?? 0);
+
+    public bool TryMoveObject(MovementDirection direction)
+    {
+        if (_excavator == null || _excavator.EntitySimpleExcavator == null)
+        {
+            return false;
+        }
+
+        return _excavator.MoveTransport(GetDirectionType(direction));
+    }
+
+    /// <summary>
+    /// Конвертация из MovementDirection в DirectionType
+    /// </summary>
+    /// <param name="direction">MovementDirection</param>
+    /// <returns>DirectionType</returns>
+    private static DirectionType GetDirectionType(MovementDirection direction)
+    {
+        return direction switch
+        {
+            MovementDirection.Left => DirectionType.Left,
+            MovementDirection.Right => DirectionType.Right,
+            MovementDirection.Up => DirectionType.Up,
+            MovementDirection.Down => DirectionType.Down,
+            _ => DirectionType.Unknow,
+        };
+    }
+}

Excavator/Excavator/MovementSrtategy/MovementDirection.cs

@@ -0,0 +1,27 @@
+namespace Excavator.MovementStrategy;
+
+/// <summary>
+/// Направление перемещения
+/// </summary>
+public enum MovementDirection
+{
+    /// <summary>
+    /// Вверх
+    /// </summary>
+    Up = 1,
+
+    /// <summary>
+    /// Вниз
+    /// </summary>
+    Down = 2,
+
+    /// <summary>
+    /// Влево
+    /// </summary>
+    Left = 3,
+
+    /// <summary>
+    /// Вправо
+    /// </summary>
+    Right = 4
+}

Excavator/Excavator/MovementSrtategy/ObjectParameters.cs

@@ -0,0 +1,70 @@
+
+namespace Excavator.MovementSrtategy;
+
+public class ObjectParameters
+{
+    /// <summary>
+    /// Координата Х
+    /// </summary>
+    private readonly int _x;
+
+    /// <summary>
+    /// Координата Y
+    /// </summary>
+    private readonly int _y;
+
+    /// <summary>
+    /// Высота объекта
+    /// </summary>
+    private readonly int _width;
+    
+    /// <summary>
+    /// Ширина объекта
+    /// </summary>
+    private readonly int _height;
+
+    /// <summary>
+    /// Левая граница
+    /// </summary>
+    public int LeftBorder => _x;
+
+    /// <summary>
+    /// Верхняя граница
+    /// </summary>
+    public int TopBorder => _y;
+
+    /// <summary>
+    /// Правая граница
+    /// </summary>
+    public int RightBorder => _x + _width;
+
+    /// <summary>
+    /// Нижняя граница
+    /// </summary>
+    public int DownBorder => _y + _height;
+
+    /// <summary>
+    /// Середина объекта
+    /// </summary>
+    public int ObjectMiddleHorizontal => _x + _width / 2;
+
+    /// <summary>
+    /// Середина объекта
+    /// </summary>
+    public int ObjectMiddleVertical => _y + _height / 2;
+
+    /// <summary>
+    /// Конструктор
+    /// </summary>
+    /// <param name="x"></param>
+    /// <param name="y"></param>
+    /// <param name="width"></param>
+    /// <param name="height"></param>
+    public ObjectParameters(int x, int y, int width, int height)
+    {
+        _x = x;
+        _y = y;
+        _width = width;
+        _height = height;
+    }
+}

Excavator/Excavator/MovementSrtategy/StrategyStatus.cs

@@ -0,0 +1,21 @@
+namespace Excavator.MovementSrtategy;
+
+
+public enum StrategyStatus
+{
+    /// <summary>
+    /// Всё готово к началу
+    /// </summary>
+    NotInit,
+
+    /// <summary>
+    /// Выполняется
+    /// </summary>
+    InProgress,
+
+    /// <summary>
+    /// Завершено
+    /// </summary>
+    Finish
+
+}