inheritance

ProjectCruiser/DrawningCruiser.cs

@@ -1,81 +0,0 @@
-using System.Drawing.Drawing2D;
-
-namespace ProjectCruiser;
-internal class DrawningCruiser : DrawningBase
-{
-
-    private EntityCruiser EntityCruiser;
-
-    public DrawningCruiser(int speed, double weight, Color bodyColor,
-        Color additionalColor, bool pads, bool hangar) : base(300, 42)
-    // all additional featchures 'inside' object, so size remains
-    {
-        EntityCruiser = new EntityCruiser(speed, weight,
-            bodyColor, additionalColor, pads, hangar);
-    }
-
-    public override void DrawTransport(Graphics g)
-    {
-        if (EntityCruiser == null || !_startPosX.HasValue || !_startPosY.HasValue)
-        {
-            return;
-        }
-
-        Pen pen = new(Color.Black, 2);
-        Brush PadBrush = new HatchBrush(HatchStyle.DottedDiamond, Color.LightGray, Color.Black);
-        Brush additionalBrush = new SolidBrush(EntityCruiser.AdditionalColor);
-        Brush mainBrush = new SolidBrush(EntityTransport.MainColor);
-
-        //границы cruiser
-        Point point0 = new Point(_startPosX.Value + 2, _startPosY.Value + 7);
-        Point point1 = new Point(_startPosX.Value + 2, _startPosY.Value + 30);
-        Point point2 = new Point(_startPosX.Value + 184, _startPosY.Value + 42);
-        Point point3 = new Point(_startPosX.Value + 260, _startPosY.Value + 34);
-        Point point4 = new Point(_startPosX.Value + 300, _startPosY.Value + 22);
-        Point point5 = new Point(_startPosX.Value + 260, _startPosY.Value + 10);
-        Point point6 = new Point(_startPosX.Value + 184, _startPosY.Value + 2);
-
-        Point[] boarders = {
-            point0,
-            point1,
-            point2,
-            point3,
-            point4,
-            point5,
-            point6
-        };
-
-        g.DrawPolygon(pen, boarders);
-        g.FillPolygon(mainBrush, boarders);
-
-        // салон на верхней палубе
-        // random location
-        int y_h = EntityCruiser.values[1];
-        g.DrawRectangle(pen, _startPosX.Value + 100, _startPosY.Value + y_h, 38, 24);
-
-        g.DrawRectangle(pen, _startPosX.Value + 110, _startPosY.Value + y_h + 6, 20, 12);
-        g.FillRectangle(additionalBrush, _startPosX.Value + 110, _startPosY.Value + y_h + 6, 20, 12);
-        g.DrawRectangle(pen, _startPosX.Value + 117, _startPosY.Value + y_h + 18, 6, 20);
-        g.FillRectangle(additionalBrush, _startPosX.Value + 117, _startPosY.Value + y_h + 18, 6, 20);
-
-        // вертолетная площадка
-        if (EntityCruiser.HelicopterPads)
-        {
-            g.DrawEllipse(pen, _startPosX.Value + 170, _startPosY.Value + 11, 20, 20);
-            g.FillEllipse(PadBrush, _startPosX.Value + 170, _startPosY.Value + 11, 20, 20);
-        }
-
-        // ангар
-        if (EntityCruiser.Hangar)
-        {
-            int n = EntityTransport.values[2];
-            if (n == 1) g.FillRectangle(additionalBrush, _startPosX.Value + 250, _startPosY.Value + 20, 14, 7);
-
-            else
-            {
-                g.FillRectangle(additionalBrush, _startPosX.Value + 80, _startPosY.Value + 10, 10, 20);
-                g.FillRectangle(additionalBrush, _startPosX.Value + 70, _startPosY.Value + 12, 8, 12);
-            }
-        }
-    }
-}

ProjectCruiser/DrawningSamples/DirectionType.cs

@@ -1,4 +1,4 @@
-namespace ProjectCruiser;
+namespace ProjectCruiser.DrawningSamples;
 public enum DirectionType
 {
     Unknown = -1,

ProjectCruiser/DrawningSamples/DrawningBase.cs

@@ -1,4 +1,5 @@
-namespace ProjectCruiser;
+using ProjectCruiser.Entities;
+namespace ProjectCruiser.DrawningSamples;
 public class DrawningBase
 {
     // Класс-сущность
@@ -9,12 +10,11 @@ public class DrawningBase
     protected int? _startPosX; // < protected
     protected int? _startPosY; // < protected
 
-    private readonly int _drawningWidth = 300; // Ширина прорисовки автомобиля
+    private readonly int _drawningWidth = 302; // Ширина прорисовки автомобиля
     private readonly int _drawningHeight = 42; // Высота прорисовки автомобиля
 
     // Инициализация свойств (теперь через конструктор)
-    public DrawningBase(int speed, double weight,
-        Color bodyColor)
+    public DrawningBase(int speed, double weight, Color bodyColor) : this()
     {
         EntityTransport = new EntityBase(speed, weight, bodyColor);
     }
@@ -42,7 +42,8 @@ public class DrawningBase
     // Установка границ поля
     public bool SetPictureSize(int w, int h)
     {
-        if (w > _pictureWidth || h > _pictureHeight)
+        if (w < _drawningWidth || h < _drawningHeight)
+            // canvas always bigger then obj to fit it
         {
             return false;
         }
@@ -78,8 +79,7 @@ public class DrawningBase
 
     public bool MoveTransport(DirectionType direction)
     {
-        if (EntityTransport == null || !_startPosX.HasValue ||
-        !_startPosY.HasValue)
+        if (EntityTransport == null || !_startPosX.HasValue || !_startPosY.HasValue)
         {
             return false;
         }

ProjectCruiser/DrawningSamples/DrawningCruiser.cs

@@ -0,0 +1,54 @@
+using System.Drawing.Drawing2D;
+using ProjectCruiser.Entities;
+namespace ProjectCruiser.DrawningSamples;
+
+public class DrawningCruiser : DrawningBase
+{
+    // Инициализация свойств (все параметры класса (сущности))
+    public DrawningCruiser(int speed, double weight, Color bodyColor,
+        Color additionalColor, bool pads, bool hangar) : base(302, 42)
+    // all additional featchures 'inside' object, so size remains
+    {
+        EntityTransport = new EntityCruiser(speed, weight,
+            bodyColor, additionalColor, pads, hangar);
+    }
+
+    public override void DrawTransport(Graphics g)
+    {
+        if (EntityTransport == null || EntityTransport is not EntityCruiser ship ||
+            !_startPosX.HasValue || !_startPosY.HasValue) // [ !!! ] :O
+        {
+            return;
+        }
+
+        Pen pen = new(Color.Black, 2);
+        Brush PadBrush = new HatchBrush(HatchStyle.DottedDiamond, Color.LightGray, Color.Black);
+        Brush additionalBrush = new SolidBrush(ship.AdditionalColor);
+
+        //границы cruiser <...>
+        // &
+        // салон на верхней палубе :
+
+        base.DrawTransport(g);
+
+        // вертолетная площадка
+        if (ship.HelicopterPads)
+        {
+            g.DrawEllipse(pen, _startPosX.Value + 170, _startPosY.Value + 11, 20, 20);
+            g.FillEllipse(PadBrush, _startPosX.Value + 170, _startPosY.Value + 11, 20, 20);
+        }
+
+        // ангар
+        if (ship.Hangar)
+        {
+            int n = EntityTransport.values[2];
+            if (n == 1) g.FillRectangle(additionalBrush, _startPosX.Value + 250, _startPosY.Value + 20, 14, 7);
+
+            else
+            {
+                g.FillRectangle(additionalBrush, _startPosX.Value + 80, _startPosY.Value + 10, 10, 20);
+                g.FillRectangle(additionalBrush, _startPosX.Value + 70, _startPosY.Value + 12, 8, 12);
+            }
+        }
+    }
+}

ProjectCruiser/Entities/EntityBase.cs

@@ -1,4 +1,4 @@
-namespace ProjectCruiser;
+namespace ProjectCruiser.Entities;
 
 public class EntityBase
 {
@@ -6,13 +6,14 @@ public class EntityBase
     public int Speed { get; private set; } // скорость
     public double Weight { get; private set; } // вес
     public Color MainColor { get; private set; } // основной цвет
+
     // public bool Deckhouse { get; private set; } // салон на верхней палубе
     public double Step => Speed * 100 / Weight;
 
     public int[] values = { 0, 0, 0 };
 
-    public EntityBase(int speed, double weight,
-        Color mainc) // (bool) deckhouse -> default TRUE now
+    public EntityBase(int speed, double weight, Color mainc)
+        // (bool) deckhouse -> default TRUE now
     {
         Random rn = new();
         Speed = speed;

ProjectCruiser/Entities/EntityCruiser.cs

@@ -1,4 +1,4 @@
-namespace ProjectCruiser;
+namespace ProjectCruiser.Entities;
 
 public class EntityCruiser : EntityBase
 {

ProjectCruiser/MoveStrategy/AbstractStrategy.cs

@@ -0,0 +1,88 @@
+namespace ProjectCruiser.MoveStrategy;
+
+public abstract class AbstractStrategy
+{
+    // Перемещаемый объект
+    private IMoveableObj? _moveableObject;
+
+    // Статус перемещения (default установка)
+    private StrategyStatus _state = StrategyStatus.NotInit;
+
+    // Ширина поля
+    protected int FieldWidth { get; private set; }
+
+    // Высота поля
+    protected int FieldHeight { get; private set; }
+
+    // Получение статуса
+    public StrategyStatus GetStatus() { return _state; }
+
+    // Установка данных
+    public void SetData(IMoveableObj moveableObject, int width, int height)
+    {
+        if (moveableObject == null)
+        {
+            _state = StrategyStatus.NotInit;
+            return;
+        }
+        _state = StrategyStatus.InProgress;
+        _moveableObject = moveableObject;
+        FieldWidth = width;
+        FieldHeight = height;
+    }
+
+    // Шаг перемещения
+    public void MakeStep()
+    {
+        if (_state != StrategyStatus.InProgress)
+        {
+            return;
+        }
+        if (IsTargetDestination())
+        {
+            _state = StrategyStatus.Finish;
+            return;
+        }
+        MoveToTarget();
+    }
+
+    // Результаты перемещения 
+    protected bool MoveLeft() => MoveTo(MovementDirection.Left);
+    protected bool MoveRight() => MoveTo(MovementDirection.Right);
+    protected bool MoveUp() => MoveTo(MovementDirection.Up);
+    protected bool MoveDown() => MoveTo(MovementDirection.Down);
+
+
+    // Параметры объекта
+    protected ObjParameters? GetObjectParameters =>
+    _moveableObject?.GetObjectPosition;
+
+    // Шаг объекта
+    protected int? GetStep()
+    {
+        if (_state != StrategyStatus.InProgress)
+        {
+            return null;
+        }
+        return _moveableObject?.GetStep;
+    }
+
+    // Перемещение к цели
+    protected abstract void MoveToTarget();
+
+    // Проверка, достигнута ли цель
+    protected abstract bool IsTargetDestination();
+
+
+    /// Попытка перемещения в требуемом направлении
+    /// <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;
+    }
+}

ProjectCruiser/MoveStrategy/IMoveableObj.cs

@@ -1,4 +1,4 @@
-namespace ProjectCruiser;
+namespace ProjectCruiser.MoveStrategy;
 
 // Интерфейс для работы с перемещаемым объектом
 public interface IMoveableObj

ProjectCruiser/MoveStrategy/MoveToBorder.cs

@@ -0,0 +1,53 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ProjectCruiser.MoveStrategy;
+
+public class MoveToBorder : AbstractStrategy
+{
+    protected override bool IsTargetDestination()
+    {
+        ObjParameters? objP = GetObjectParameters;
+        if (objP == null)
+        {
+            return false;
+        }
+
+        return FieldWidth - GetStep() < objP.RightBorder
+            && FieldHeight - GetStep() < objP.DownBorder;
+    }
+
+    protected override void MoveToTarget()
+    {
+        ObjParameters? objP = GetObjectParameters;
+        if (objP == null)
+        {
+            return;
+        }
+
+        int s = (int)GetStep();
+
+        int diffx = objP.RightBorder - FieldWidth;
+        if (Math.Abs(diffx) > GetStep())
+        {
+            if (diffx > 0)
+            {
+                MoveLeft();
+            }
+            else { MoveRight(); }
+        }
+
+        int diffy = objP.DownBorder - FieldHeight; // (... - s) - step unnecessary
+        if (Math.Abs(diffy) > GetStep())
+        {
+            if (diffy > 0)
+            {
+                MoveUp();
+            }
+            else { MoveDown(); }
+        }
+    }
+}

ProjectCruiser/MoveStrategy/MoveToCentre.cs

@@ -0,0 +1,50 @@
+namespace ProjectCruiser.MoveStrategy;
+
+public class MoveToCentre : AbstractStrategy
+{
+    protected override bool IsTargetDestination()
+    {
+        ObjParameters? objP = GetObjectParameters;
+        if (objP == null)
+        {
+            return false;
+        }
+
+        return objP.ObjectMiddleHorizontal - GetStep() 
+            <= FieldWidth / 2 && objP.ObjectMiddleHorizontal 
+            + GetStep() >= FieldWidth / 2
+
+            && objP.ObjectMiddleVertical - GetStep() 
+            <= FieldHeight / 2 && objP.ObjectMiddleVertical 
+            + GetStep() >= FieldHeight / 2;
+    }
+
+    protected override void MoveToTarget()
+    {
+        ObjParameters? objP = GetObjectParameters;
+        if (objP == null)
+        {
+            return;
+        }
+
+        int diffx = objP.ObjectMiddleHorizontal - FieldWidth / 2;
+        if (Math.Abs(diffx) > GetStep())
+        {
+            if (diffx > 0)
+            {
+                MoveLeft();
+            }
+            else { MoveRight(); }
+        }
+
+        int diffy = objP.ObjectMiddleVertical - FieldHeight / 2;
+        if (Math.Abs(diffy) > GetStep())
+        {
+            if (diffy > 0)
+            {
+                MoveUp();
+            }
+            else { MoveDown(); }
+        }
+    }
+}

ProjectCruiser/MoveStrategy/MoveableTransport.cs

@@ -1,4 +1,6 @@
-namespace ProjectCruiser;
+using ProjectCruiser.DrawningSamples;
+
+namespace ProjectCruiser.MoveStrategy;
 
 // Класс-реализация IMoveableObject с использованием DrawningBase
 public class MoveableTransport : IMoveableObj

ProjectCruiser/MoveStrategy/MovementDirection.cs

@@ -0,0 +1,10 @@
+namespace ProjectCruiser.MoveStrategy;
+
+// Направление перемещения
+public enum MovementDirection
+{
+    Up = 1,
+    Down = 2,
+    Left = 3,
+    Right = 4
+}

ProjectCruiser/MoveStrategy/ObjParameters.cs

@@ -1,4 +1,4 @@
-namespace ProjectCruiser;
+namespace ProjectCruiser.MoveStrategy;
 
 // Параметры-координаты объекта
 public class ObjParameters

ProjectCruiser/MoveStrategy/StrategyStatus.cs

@@ -1,10 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace ProjectCruiser;
+namespace ProjectCruiser.MoveStrategy;
 
 // Статус выполнения операции перемещения
 public enum StrategyStatus

ProjectCruiser/MovementDirection.cs

@@ -1,16 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace ProjectCruiser;
-
-// Направление перемещения
-public enum MovementDirection
-{
-    Up = 1,
-    Down = 2,
-    Left = 3,
-    Right = 4
-}

ProjectCruiser/OceanForm1.Designer.cs

@@ -27,12 +27,15 @@ partial class OceanForm1
         btnUpArrow = new Button();
         btnCreateBase = new Button();
         pictureBoxCr = new PictureBox();
+        comboBoxStrategy = new ComboBox();
+        btnCreateAdvanced = new Button();
+        btnActivateStrategy = new Button();
         ((System.ComponentModel.ISupportInitialize)pictureBoxCr).BeginInit();
         SuspendLayout();
         // 
         // btnLeftArrow
         // 
-        btnLeftArrow.Location = new Point(926, 634);
+        btnLeftArrow.Location = new Point(926, 445);
         btnLeftArrow.Name = "btnLeftArrow";
         btnLeftArrow.Size = new Size(141, 132);
         btnLeftArrow.TabIndex = 0;
@@ -41,7 +44,7 @@ partial class OceanForm1
         // 
         // btnDownArrow
         // 
-        btnDownArrow.Location = new Point(1073, 634);
+        btnDownArrow.Location = new Point(1073, 445);
         btnDownArrow.Name = "btnDownArrow";
         btnDownArrow.Size = new Size(141, 132);
         btnDownArrow.TabIndex = 1;
@@ -50,7 +53,7 @@ partial class OceanForm1
         // 
         // btnRightArrow
         // 
-        btnRightArrow.Location = new Point(1220, 634);
+        btnRightArrow.Location = new Point(1220, 445);
         btnRightArrow.Name = "btnRightArrow";
         btnRightArrow.Size = new Size(141, 132);
         btnRightArrow.TabIndex = 2;
@@ -59,7 +62,7 @@ partial class OceanForm1
         // 
         // btnUpArrow
         // 
-        btnUpArrow.Location = new Point(1073, 496);
+        btnUpArrow.Location = new Point(1073, 307);
         btnUpArrow.Name = "btnUpArrow";
         btnUpArrow.Size = new Size(141, 132);
         btnUpArrow.TabIndex = 3;
@@ -70,11 +73,11 @@ partial class OceanForm1
         // 
         btnCreateBase.Location = new Point(928, 12);
         btnCreateBase.Name = "btnCreateBase";
-        btnCreateBase.Size = new Size(435, 46);
+        btnCreateBase.Size = new Size(433, 46);
         btnCreateBase.TabIndex = 4;
-        btnCreateBase.Text = "Create";
+        btnCreateBase.Text = "Create base object";
         btnCreateBase.UseVisualStyleBackColor = true;
-        btnCreateBase.Click += ButtonCreateBase_Click;
+        btnCreateBase.Click += btnCreateBase_Click;
         // 
         // pictureBoxCr
         // 
@@ -85,12 +88,44 @@ partial class OceanForm1
         pictureBoxCr.TabIndex = 5;
         pictureBoxCr.TabStop = false;
         // 
+        // comboBoxStrategy
+        // 
+        comboBoxStrategy.FormattingEnabled = true;
+        comboBoxStrategy.Items.AddRange(new object[] { "centre", "border" });
+        comboBoxStrategy.Location = new Point(928, 120);
+        comboBoxStrategy.Name = "comboBoxStrategy";
+        comboBoxStrategy.Size = new Size(435, 40);
+        comboBoxStrategy.TabIndex = 6;
+        // 
+        // btnCreateAdvanced
+        // 
+        btnCreateAdvanced.Location = new Point(928, 58);
+        btnCreateAdvanced.Name = "btnCreateAdvanced";
+        btnCreateAdvanced.Size = new Size(433, 46);
+        btnCreateAdvanced.TabIndex = 7;
+        btnCreateAdvanced.Text = "Create advanced object";
+        btnCreateAdvanced.UseVisualStyleBackColor = true;
+        btnCreateAdvanced.Click += btnCreateAdvanced_Click;
+        // 
+        // btnActivateStrategy
+        // 
+        btnActivateStrategy.Location = new Point(928, 166);
+        btnActivateStrategy.Name = "btnActivateStrategy";
+        btnActivateStrategy.Size = new Size(435, 46);
+        btnActivateStrategy.TabIndex = 8;
+        btnActivateStrategy.Text = "Activate path";
+        btnActivateStrategy.UseVisualStyleBackColor = true;
+        btnActivateStrategy.Click += ButtonStrategyStep_Click;
+        // 
         // OceanForm1
         // 
         AutoScaleDimensions = new SizeF(13F, 32F);
         AutoScaleMode = AutoScaleMode.Font;
         BackColor = Color.Turquoise;
         ClientSize = new Size(1375, 778);
+        Controls.Add(btnActivateStrategy);
+        Controls.Add(btnCreateAdvanced);
+        Controls.Add(comboBoxStrategy);
         Controls.Add(btnCreateBase);
         Controls.Add(btnUpArrow);
         Controls.Add(btnRightArrow);
@@ -111,4 +146,7 @@ partial class OceanForm1
     private Button btnUpArrow;
     private Button btnCreateBase;
     private PictureBox pictureBoxCr;
+    private ComboBox comboBoxStrategy;
+    private Button btnCreateAdvanced;
+    private Button btnActivateStrategy;
 }

ProjectCruiser/OceanForm1.cs

@@ -1,12 +1,5 @@
-using System;
-using System.Collections.Generic;
-using System.ComponentModel;
-using System.Data;
-using System.Drawing;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using System.Windows.Forms;
+using ProjectCruiser.DrawningSamples;
+using ProjectCruiser.MoveStrategy;
 
 namespace ProjectCruiser
 {
@@ -15,9 +8,13 @@ namespace ProjectCruiser
         // Поле-объект для прорисовки объекта
         private DrawningBase? _drawningCruiser;
 
+        // Стратегия перемещения
+        private AbstractStrategy? _strategy;
+
         public OceanForm1()
         {
             InitializeComponent();
+            _strategy = null;
         }
 
         // Метод прорисовки transport
@@ -27,32 +24,52 @@ namespace ProjectCruiser
             {
                 return;
             }
-            Bitmap bmp = new(pictureBoxCr.Width,
-            pictureBoxCr.Height);
+            Bitmap bmp = new(pictureBoxCr.Width, pictureBoxCr.Height);
             Graphics gr = Graphics.FromImage(bmp);
             _drawningCruiser.DrawTransport(gr);
             pictureBoxCr.Image = bmp;
         }
 
-        // Обработка нажатия кнопки "Create"
-        private void ButtonCreateBase_Click(object sender, EventArgs e)
+        // Обработка нажатия кнопок "Create(...)"
+
+        private void btnCreateBase_Click(object sender, EventArgs e) =>
+            CreateObject(nameof(DrawningBase));
+
+        private void btnCreateAdvanced_Click(object sender, EventArgs e) =>
+            CreateObject(nameof(DrawningCruiser));
+
+        // Создание объекта класса-перемещения
+        /// <param name="type">Тип создаваемого объекта</param>
+        private void CreateObject(string type)
         {
             Random random = new();
-            _drawningCruiser = new DrawningBase();
+            switch (type)
+            {
+                case nameof(DrawningBase):
+                    _drawningCruiser = new DrawningBase(random.Next(100, 300), random.Next(1000, 3000),
+                    Color.FromArgb(random.Next(0, 256), random.Next(0, 256), random.Next(0, 256)));
+                    break;
 
-            _drawningCruiser.Init(random.Next(100, 300), random.Next(1000, 3000),
+                case nameof(DrawningCruiser):
+                    _drawningCruiser = new DrawningCruiser(random.Next(100, 300), random.Next(1000, 3000),
                         Color.FromArgb(random.Next(0, 256), random.Next(0, 256), random.Next(0, 256)),
                         Color.FromArgb(random.Next(0, 256), random.Next(0, 256), random.Next(0, 256)),
-                Convert.ToBoolean(random.Next(0, 2)), Convert.ToBoolean(random.Next(0, 2)),
-                Convert.ToBoolean(random.Next(0, 2)));
+                        Convert.ToBoolean(random.Next(0, 2)), Convert.ToBoolean(random.Next(0, 2)));
+                    break;
+
+                default:
+                    return;
+            }
 
             _drawningCruiser.SetPictureSize(pictureBoxCr.Width, pictureBoxCr.Height);
             _drawningCruiser.SetPosition(random.Next(10, 100),
                 pictureBoxCr.Height - random.Next(10, 100) - _drawningCruiser.getHeight());
+
+            _strategy = null;
+            comboBoxStrategy.Enabled = true;
             Draw();
         }
 
-
         private void BtnMove_Click(object sender, EventArgs e)
         {
             if (_drawningCruiser == null)
@@ -85,5 +102,41 @@ namespace ProjectCruiser
                 Draw();
             }
         }
+
+        private void ButtonStrategyStep_Click(object sender, EventArgs e)
+        {
+            if (_drawningCruiser == null)
+            {
+                return;
+            }
+            if (comboBoxStrategy.Enabled)
+            {
+                _strategy = comboBoxStrategy.SelectedIndex switch
+                {
+                    0 => new MoveToCentre(),
+                    1 => new MoveToBorder(),
+                    _ => null,
+                };
+                if (_strategy == null)
+                {
+                    return;
+                }
+                _strategy.SetData(new MoveableTransport(_drawningCruiser),
+                pictureBoxCr.Width, pictureBoxCr.Height);
+            }
+            if (_strategy == null)
+            {
+                return;
+            }
+            comboBoxStrategy.Enabled = false;
+            _strategy.MakeStep();
+            Draw();
+
+            if (_strategy.GetStatus() == StrategyStatus.Finish)
+            {
+                comboBoxStrategy.Enabled = true;
+                _strategy = null;
+            }
+        }
     }
 }