До редактирования формы

AirBomber/AirBomber.csproj

@@ -23,4 +23,8 @@
     </EmbeddedResource>
   </ItemGroup>
 
+  <ItemGroup>
+    <Folder Include="MovementStrategy\" />
+  </ItemGroup>
+
 </Project>

AirBomber/BomberEntity.cs

@@ -1,23 +0,0 @@
-namespace AirBomber
-{
-    public class BomberEntity
-    {
-        public int Speed { get; private set; }
-        public double Weight { get; private set; }
-        public Color BodyColor { get; private set; }
-        public Color AdditionalColor { get; private set; }
-        public bool Bombs { get; private set; }
-        public bool FuelTanks { get; private set; }
-        public double Step => (double)Speed * 100 / Weight * 5 / 2;
-
-        public void Init(int Speed, double Weight, Color BodyColor, Color AdditionalColor, bool FuelTanks, bool Bombs)
-        {
-            this.Speed = Speed;
-            this.Weight = Weight;
-            this.BodyColor = BodyColor;
-            this.AdditionalColor = AdditionalColor;
-            this.FuelTanks = FuelTanks;
-            this.Bombs = Bombs;
-        }
-    }
-}

AirBomber/BomberForm.cs

@@ -1,8 +1,10 @@
+using AirBomber.Rendering;
+
 namespace AirBomber
 {
     public partial class BomberForm : Form
     {
-        private BomberRenderer? _bomberRenderer;
+        private BomberRendererBase? _bomberRenderer;
 
         public BomberForm()
         {
@@ -24,7 +26,7 @@ namespace AirBomber
         private void ButtonCreate_Click(object sender, EventArgs e)
         {
             Random random = new Random();
-            _bomberRenderer = new BomberRenderer();
+            _bomberRenderer = new BomberRendererBase();
 
             _bomberRenderer.Init(
                 random.Next(100, 300),

AirBomber/Entities/BomberEntity.cs

@@ -0,0 +1,17 @@
+namespace AirBomber.Entities
+{
+    public class BomberEntity : BomberEntityBase
+    {
+        public Color AdditionalColor { get; private set; }
+        public bool Bombs { get; private set; }
+        public bool FuelTanks { get; private set; }
+
+        public BomberEntity(int Speed, double Weight, Color BodyColor, Color AdditionalColor, bool FuelTanks, bool Bombs)
+            : base(Speed, Weight, BodyColor)
+        {
+            this.AdditionalColor = AdditionalColor;
+            this.FuelTanks = FuelTanks;
+            this.Bombs = Bombs;
+        }
+    }
+}

AirBomber/Entities/BomberEntityBase.cs

@@ -0,0 +1,17 @@
+namespace AirBomber.Entities
+{
+    public class BomberEntityBase
+    {
+        public int Speed { get; private set; }
+        public double Weight { get; private set; }
+        public Color BodyColor { get; private set; }
+        public double Step => (double)Speed * 100 / Weight * 5 / 2;
+
+        public BomberEntityBase(int Speed, double Weight, Color BodyColor)
+        {
+            this.Speed = Speed;
+            this.Weight = Weight;
+            this.BodyColor = BodyColor;
+        }
+    }
+}

AirBomber/MovementStrategy/AbstractStrategy.cs

@@ -0,0 +1,76 @@
+namespace AirBomber.MovementStrategy
+{
+    public abstract class AbstractStrategy
+    {
+        private IMovableObject? _movableObject;
+
+        private Status _state = Status.NotInit;
+
+        protected int FieldWidth { get; private set; }
+        protected int FieldHeight { get; private set; }
+
+        public Status GetStatus() { return _state; }
+
+        public void SetData(IMovableObject MovableObject, int Width, int Height)
+        {
+            if (MovableObject is null)
+            {
+                _state = Status.NotInit;
+                return;
+            }
+
+            _state = Status.InProgress;
+            _movableObject = MovableObject;
+
+            FieldWidth = Width;
+            FieldHeight = Height;
+        }
+
+        public void MakeStep()
+        {
+            if (_state != Status.InProgress)
+                return;
+
+            if (IsTargetDestination())
+            {
+                _state = Status.Finish;
+                return;
+            }
+
+            MoveToTarget();
+        }
+
+        protected bool MoveLeft() => MoveTo(DirectionType.Left);
+        protected bool MoveRight() => MoveTo(DirectionType.Right);
+        protected bool MoveUp() => MoveTo(DirectionType.Up);
+        protected bool MoveDown() => MoveTo(DirectionType.Down);
+
+        protected ObjectParameters? ObjectParameters => _movableObject?.ObjectPosition;
+
+        protected int? GetStep()
+        {
+            if (_state != Status.InProgress)
+                return null;
+
+            return _movableObject?.Step;
+        }
+
+        protected abstract void MoveToTarget();
+
+        protected abstract bool IsTargetDestination();
+        
+        private bool MoveTo(DirectionType DirectionType)
+        {
+            if (_state != Status.InProgress)
+                return false;
+
+            if (_movableObject?.CanMove(DirectionType) ?? false)
+            {
+                _movableObject.MoveObject(DirectionType);
+                return true;
+            }
+
+            return false;
+        }
+    }
+}

AirBomber/MovementStrategy/DirectionType.cs

@@ -1,4 +1,4 @@
-namespace AirBomber
+namespace AirBomber.MovementStrategy
 {
     public enum DirectionType
     {

AirBomber/MovementStrategy/IMovableObject.cs

@@ -0,0 +1,12 @@
+namespace AirBomber.MovementStrategy
+{
+    public interface IMovableObject
+    {
+        ObjectParameters? ObjectPosition { get; }
+        int Step { get; }
+
+        bool CanMove(DirectionType Direction);
+
+        void MoveObject(DirectionType Direction);
+    }
+}

AirBomber/MovementStrategy/MoveToCenterStrategy.cs

@@ -0,0 +1,44 @@
+namespace AirBomber.MovementStrategy
+{
+    public class MoveToCenterStrategy : AbstractStrategy
+    {
+        protected override bool IsTargetDestination()
+        {
+            ObjectParameters? ObjParams = ObjectParameters;
+            if (ObjParams is null)
+                return false;
+
+            float FieldMiddleHorizontal = FieldWidth / 2;
+            float FieldMiddleVertical = FieldHeight / 2;
+
+            return
+                Math.Abs(ObjParams.ObjectMiddleHorizontal - FieldMiddleHorizontal) < GetStep() &&
+                Math.Abs(ObjParams.ObjectMiddleVertical - FieldMiddleVertical) < GetStep();
+        }
+
+        protected override void MoveToTarget()
+        {
+            ObjectParameters? ObjParams = ObjectParameters;
+            if (ObjParams is null)
+                return;
+
+            float diffX = ObjParams.ObjectMiddleHorizontal - FieldWidth / 2;
+            if (Math.Abs(diffX) > GetStep())
+            {
+                if (diffX > 0)
+                    MoveLeft();
+                else
+                    MoveRight();
+            }
+
+            float diffY = ObjParams.ObjectMiddleVertical - FieldHeight / 2;
+            if (Math.Abs(diffY) > GetStep())
+            {
+                if (diffY > 0)
+                    MoveUp();
+                else
+                    MoveDown();
+            }
+        }
+    }
+}

AirBomber/MovementStrategy/MoveToDownRightStrategy.cs

@@ -0,0 +1,43 @@
+namespace AirBomber.MovementStrategy
+{
+    public class MoveToDownRightStrategy : AbstractStrategy
+    {
+        protected override bool IsTargetDestination()
+        {
+            ObjectParameters? ObjParams = ObjectParameters;
+            if (ObjParams is null)
+                return false;
+
+            return
+                ObjParams.RightBorder <= FieldWidth &&
+                ObjParams.RightBorder + GetStep() >= FieldWidth &&
+                ObjParams.BottomBorder <= FieldHeight &&
+                ObjParams.BottomBorder + GetStep() >= FieldHeight;
+        }
+
+        protected override void MoveToTarget()
+        {
+            ObjectParameters? ObjParams = ObjectParameters;
+            if (ObjParams is null)
+                return;
+
+            float diffX = ObjParams.RightBorder - FieldWidth;
+            if (Math.Abs(diffX) > GetStep())
+            {
+                if (diffX > 0)
+                    MoveLeft();
+                else
+                    MoveRight();
+            }
+
+            float diffY = ObjParams.BottomBorder - FieldHeight;
+            if (Math.Abs(diffY) > GetStep())
+            {
+                if (diffY > 0)
+                    MoveUp();
+                else
+                    MoveDown();
+            }
+        }
+    }
+}

AirBomber/MovementStrategy/ObjectEntityRenderer.cs

@@ -0,0 +1,36 @@
+using AirBomber.Rendering;
+
+namespace AirBomber.MovementStrategy
+{
+    public class ObjectEntityRenderer : IMovableObject
+    {
+        private readonly BomberRendererBase? _entityRenderer = null;
+
+        public ObjectEntityRenderer(BomberRendererBase? EntityRenderer)
+        {
+            _entityRenderer = EntityRenderer;
+        }
+
+        public ObjectParameters? ObjectPosition
+        {
+            get
+            {
+                if (_entityRenderer is null || _entityRenderer.EntityBomber is null)
+                    return null;
+
+                return new ObjectParameters(
+                    _entityRenderer.PosX, 
+                    _entityRenderer.PosY, 
+                    _entityRenderer.EntityWidth, 
+                    _entityRenderer.EntityHeight
+                );
+            }
+        }
+
+        public int Step => (int)(_entityRenderer?.EntityBomber?.Step ?? 0);
+
+        public bool CanMove(DirectionType Direction) => _entityRenderer?.CanMove(Direction) ?? false;
+
+        public void MoveObject(DirectionType Direction) => _entityRenderer?.MoveEntity(Direction);
+    }
+}

AirBomber/MovementStrategy/ObjectParameters.cs

@@ -0,0 +1,27 @@
+namespace AirBomber.MovementStrategy
+{
+    public class ObjectParameters
+    {
+        private readonly int _x;
+        private readonly int _y;
+
+        private readonly int _width;
+        private readonly int _height;
+
+        public int LeftBorder => _x;
+        public int TopBorder => _y;
+        public int RightBorder => _x + _width;
+        public int BottomBorder => _y + _height;
+
+        public int ObjectMiddleHorizontal => _x + _width / 2;
+        public int ObjectMiddleVertical => _y + _height / 2;
+
+        public ObjectParameters(int X, int Y, int Width, int Height)
+        {
+            _x = X;
+            _y = Y;
+            _width = Width;
+            _height = Height;
+        }
+    }
+}

AirBomber/MovementStrategy/Status.cs

@@ -0,0 +1,9 @@
+namespace AirBomber.MovementStrategy
+{
+    public enum Status
+    {
+        NotInit = 1,
+        InProgress,
+        Finish,
+    }
+}

AirBomber/Rendering/BomberRenderer.cs

@@ -0,0 +1,55 @@
+using AirBomber.Entities;
+
+namespace AirBomber.Rendering
+{
+    public class BomberRenderer : BomberRendererBase
+    {
+        public BomberRenderer(int Speed, double Weight, Color BodyColor, Color AdditionalColor, bool FuelTanks, bool Bombs, int Width, int Height)
+            : base(Speed, Weight, BodyColor, Width, Height, 200, 200)
+        {
+            if (EntityBomber is not null)
+                EntityBomber = new BomberEntity(Speed, Weight, BodyColor, AdditionalColor, FuelTanks, Bombs);
+        }
+
+        public override void DrawEntity(Graphics g)
+        {
+            if (EntityBomber is not BomberEntity DerivedEntityBomber)
+                return;
+
+            base.DrawEntity(g);
+
+            Brush AdditionalBrush = new SolidBrush(DerivedEntityBomber.AdditionalColor);
+
+            /** Отрисовка дополнительных элементов */
+            if (DerivedEntityBomber.FuelTanks)
+            {
+                Point[] LeftGasTank = {
+                new Point(_startPosX + 50, _startPosY + 85),
+                new Point(_startPosX + 75, _startPosY + 85),
+                new Point(_startPosX + 75, _startPosY + 70),
+                new Point(_startPosX + 50, _startPosY + 70),
+            };
+                g.FillPolygon(AdditionalBrush, LeftGasTank);
+
+                Point[] RightGasTank = {
+                new Point(_startPosX + 50, _startPosY + 115),
+                new Point(_startPosX + 75, _startPosY + 115),
+                new Point(_startPosX + 75, _startPosY + 130),
+                new Point(_startPosX + 50, _startPosY + 130),
+            };
+                g.FillPolygon(AdditionalBrush, RightGasTank);
+            }
+
+            if (DerivedEntityBomber.Bombs)
+            {
+                Point LeftBombStartXY = new Point(_startPosX + 110, _startPosY + 115);
+                Size LeftBombSize = new Size(50, 25);
+                g.FillEllipse(AdditionalBrush, new Rectangle(LeftBombStartXY, LeftBombSize));
+
+                Point RightBombStartXY = new Point(_startPosX + 110, _startPosY + 60);
+                Size RightBombSize = new Size(50, 25);
+                g.FillEllipse(AdditionalBrush, new Rectangle(RightBombStartXY, RightBombSize));
+            }
+        }
+    }
+}

AirBomber/Rendering/BomberRendererBase.cs

@@ -1,33 +1,53 @@
-namespace AirBomber
+using AirBomber.Entities;
+using AirBomber.MovementStrategy;
+
+namespace AirBomber.Rendering
 {
-    public class BomberRenderer
+    public class BomberRendererBase
     {
         /// <summary>
         /// Класс, отвечающий за прорисовку и перемещение объекта-сущности
         /// </summary>
-        public BomberEntity? EntityBomber { get; private set; }
+        public BomberEntityBase? EntityBomber { get; protected set; }
 
         private int _pictureWidth;
         private int _pictureHeight;
 
-        private int _startPosX;
+        protected int _startPosX;
-        private int _startPosY;
+        protected int _startPosY;
 
-        private readonly int _bomberWidth = 200;
+        protected readonly int _bomberWidth = 200;
-        private readonly int _bomberHeight = 200;
+        protected readonly int _bomberHeight = 200;
 
-        public bool Init(int Speed, double Weight, Color BodyColor, Color AdditionalColor, bool FuelTanks, bool Bombs, int Width, int Height)
+        public int PosX => _startPosX;
+        public int PosY => _startPosY;
+
+        public int EntityWidth => _bomberWidth;
+        public int EntityHeight => _bomberHeight;
+
+        public BomberRendererBase(int Speed, double Weight, Color BodyColor, int Width, int Height)
         {
             if (Width < _bomberWidth || Height < _bomberHeight)
-                return false;
+                return;
 
             _pictureWidth = Width;
             _pictureHeight = Height;
 
-            EntityBomber = new BomberEntity();
+            EntityBomber = new BomberEntityBase(Speed, Weight, BodyColor);
-            EntityBomber.Init(Speed, Weight, BodyColor, AdditionalColor, FuelTanks, Bombs);
+        }
 
-            return true;
+        public BomberRendererBase(int Speed, double Weight, Color BodyColor, int Width, int Height, int EntityWidth, int EntityHeight)
+        {
+            if (Width < _bomberWidth || Height < _bomberHeight)
+                return;
+
+            _pictureWidth = Width;
+            _pictureHeight = Height;
+
+            _bomberWidth = EntityWidth;
+            _bomberHeight = EntityHeight;
+
+            EntityBomber = new BomberEntityBase(Speed, Weight, BodyColor);
         }
 
         public void SetPosition(int x, int y)
@@ -50,47 +70,54 @@
             _startPosY = y;
         }
 
+        public bool CanMove(DirectionType direction)
+        {
+            if (EntityBomber is null)
+                return false;
+
+            return direction switch
+            {
+                DirectionType.Left => _startPosX - EntityBomber.Step > 0,
+                DirectionType.Up => _startPosY - EntityBomber.Step > 0,
+                DirectionType.Right => _startPosX + _bomberWidth + EntityBomber.Step <= _pictureWidth,
+                DirectionType.Down => _startPosY + _bomberHeight + EntityBomber.Step <= _pictureHeight,
+
+                _ => false,
+            };
+        }
+
         public void MoveEntity(DirectionType Direction)
         {
-            if (EntityBomber == null)
+            if (EntityBomber == null || !CanMove(Direction))
                 return;
 
             switch (Direction)
             {
-                case DirectionType.Up:
-                    if (_startPosY - EntityBomber.Step > 0)
-                        _startPosY -= (int)EntityBomber.Step;
-
-                    break;
-
-                case DirectionType.Down:
-                    if (_startPosY + _bomberHeight + EntityBomber.Step <= _pictureHeight)
-                        _startPosY += (int)EntityBomber.Step;
-
-                    break;
-
                 case DirectionType.Left:
-                    if (_startPosX - EntityBomber.Step > 0)
                     _startPosX -= (int)EntityBomber.Step;
+                    break;
 
+                case DirectionType.Up:
+                    _startPosY -= (int)EntityBomber.Step;
                     break;
 
                 case DirectionType.Right:
-                    if (_startPosX + _bomberWidth + EntityBomber.Step <= _pictureWidth)
                     _startPosX += (int)EntityBomber.Step;
+                    break;
 
+                case DirectionType.Down:
+                    _startPosY += (int)EntityBomber.Step;
                     break;
             }
         }
 
-        public void DrawEntity(Graphics g)
+        public virtual void DrawEntity(Graphics g)
         {
             if (EntityBomber == null)
                 return;
 
-            Pen pen = new Pen(EntityBomber.BodyColor);
+            Pen Pen = new Pen(EntityBomber.BodyColor);
             Brush Brush = new SolidBrush(EntityBomber.BodyColor);
-            Brush AdditionalBrush = new SolidBrush(EntityBomber.AdditionalColor);
 
             /** Отрисовка основной части */
             Point[] LeftWing = {
@@ -99,7 +126,7 @@
                 new Point(_startPosX + 108, _startPosY + 85),
                 new Point(_startPosX + 90, _startPosY + 85),
             };
-            g.DrawPolygon(pen, LeftWing);
+            g.DrawPolygon(Pen, LeftWing);
 
             Point[] RightWing = {
                 new Point(_startPosX + 90, _startPosY + 200),
@@ -107,7 +134,7 @@
                 new Point(_startPosX + 108, _startPosY + 115),
                 new Point(_startPosX + 90, _startPosY + 115),
             };
-            g.DrawPolygon(pen, RightWing);
+            g.DrawPolygon(Pen, RightWing);
 
             Point[] Body = {
                 new Point(_startPosX + 35, _startPosY + 85),
@@ -115,7 +142,7 @@
                 new Point(_startPosX + 200, _startPosY + 115),
                 new Point(_startPosX + 35, _startPosY + 115),
             };
-            g.DrawPolygon(pen, Body);
+            g.DrawPolygon(Pen, Body);
 
             Point[] Nose = {
                 new Point(_startPosX, _startPosY + 100),
@@ -130,7 +157,7 @@
                 new Point(_startPosX + 200, _startPosY + 85),
                 new Point(_startPosX + 170, _startPosY + 85),
             };
-            g.DrawPolygon(pen, BackLeftWing);
+            g.DrawPolygon(Pen, BackLeftWing);
 
             Point[] BackRightWing = {
                 new Point(_startPosX + 170, _startPosY + 130),
@@ -138,39 +165,7 @@
                 new Point(_startPosX + 200, _startPosY + 115),
                 new Point(_startPosX + 170, _startPosY + 115),
             };
-            g.DrawPolygon(pen, BackRightWing);
+            g.DrawPolygon(Pen, BackRightWing);
-
-
-            /** Отрисовка дополнительных элементов */
-            if (EntityBomber.FuelTanks)
-            {
-                Point[] LeftGasTank = {
-                new Point(_startPosX + 50, _startPosY + 85),
-                new Point(_startPosX + 75, _startPosY + 85),
-                new Point(_startPosX + 75, _startPosY + 70),
-                new Point(_startPosX + 50, _startPosY + 70),
-            };
-                g.FillPolygon(AdditionalBrush, LeftGasTank);
-
-                Point[] RightGasTank = {
-                new Point(_startPosX + 50, _startPosY + 115),
-                new Point(_startPosX + 75, _startPosY + 115),
-                new Point(_startPosX + 75, _startPosY + 130),
-                new Point(_startPosX + 50, _startPosY + 130),
-            };
-                g.FillPolygon(AdditionalBrush, RightGasTank);
-            }
-
-            if (EntityBomber.Bombs)
-            {
-                Point LeftBombStartXY = new Point(_startPosX + 110, _startPosY + 115);
-                Size LeftBombSize = new Size(50, 25);
-                g.FillEllipse(AdditionalBrush, new Rectangle(LeftBombStartXY, LeftBombSize));
-
-                Point RightBombStartXY = new Point(_startPosX + 110, _startPosY + 60);
-                Size RightBombSize = new Size(50, 25);
-                g.FillEllipse(AdditionalBrush, new Rectangle(RightBombStartXY, RightBombSize));
-            }
         }
     }
 }