Лабораторная работа №2

src/DifferentRollers/DrawingRollersCross.java

@@ -0,0 +1,32 @@
+package DifferentRollers;
+
+import java.awt.*;
+
+public class DrawingRollersCross implements IDifferentRollers{
+    private RollersCount rollersCount;
+    @Override
+    public void setRollersCount(int numOfRoller){
+        for (RollersCount numofenum : RollersCount.values()){
+            if (numofenum.getNumOfRollers() == numOfRoller){
+                rollersCount = numofenum;
+                return;
+            }
+        }
+    }
+
+    @Override
+    public RollersCount getRollersCount(){
+        return rollersCount;
+    }
+
+    @Override
+    public void DrawRollers(Graphics2D g, int x, int y, int width, int height, Color bodyColor){
+        g.setColor(bodyColor);
+        g.fillOval(x, y, width, height);
+        g.setColor(Color.BLACK);
+        g.drawLine(x+2, y+2, x+6, y+6);
+        g.drawLine(x+2, y+6, x+6, y+2);
+        g.drawOval(x, y, width, height);
+        g.setColor(bodyColor);
+    }
+}

src/DifferentRollers/DrawingRollersPlus.java

@@ -0,0 +1,32 @@
+package DifferentRollers;
+
+import java.awt.*;
+
+public class DrawingRollersPlus implements IDifferentRollers{
+    private RollersCount rollersCount;
+    @Override
+    public void setRollersCount(int numOfRoller){
+        for (RollersCount numofenum : RollersCount.values()){
+            if (numofenum.getNumOfRollers() == numOfRoller){
+                rollersCount = numofenum;
+                return;
+            }
+        }
+    }
+
+    @Override
+    public RollersCount getRollersCount(){
+        return rollersCount;
+    }
+
+    @Override
+    public void DrawRollers(Graphics2D g, int x, int y, int width, int height, Color bodyColor){
+        g.setColor(bodyColor);
+        g.fillOval(x, y, width, height);
+        g.setColor(Color.BLACK);
+        g.drawLine(x+4, y, x+4, y+8);
+        g.drawLine(x, y+4, x+8, y+4);
+        g.drawOval(x, y, width, height);
+        g.setColor(bodyColor);
+    }
+}

src/DifferentRollers/DrawingRollersStar.java

@@ -0,0 +1,34 @@
+package DifferentRollers;
+
+import java.awt.*;
+
+public class DrawingRollersStar implements IDifferentRollers{
+    private RollersCount rollersCount;
+    @Override
+    public void setRollersCount(int numOfRoller){
+        for (RollersCount numofenum : RollersCount.values()){
+            if (numofenum.getNumOfRollers() == numOfRoller){
+                rollersCount = numofenum;
+                return;
+            }
+        }
+    }
+
+    @Override
+    public RollersCount getRollersCount(){
+        return rollersCount;
+    }
+
+    @Override
+    public void DrawRollers(Graphics2D g, int x, int y, int width, int height, Color bodyColor){
+        g.setColor(bodyColor);
+        g.fillOval(x, y, width, height);
+        g.setColor(Color.BLACK);
+        g.drawLine(x+4, y, x+4, y+8);
+        g.drawLine(x, y+4, x+8, y+4);
+        g.drawLine(x+2, y+2, x+6, y+6);
+        g.drawLine(x+2, y+6, x+6, y+2);
+        g.drawOval(x, y, width, height);
+        g.setColor(bodyColor);
+    }
+}

src/DifferentRollers/IDifferentRollers.java

@@ -0,0 +1,9 @@
+package DifferentRollers;
+
+import java.awt.*;
+
+public interface IDifferentRollers {
+    void setRollersCount(int numOfRoller);
+    RollersCount getRollersCount();
+    void DrawRollers(Graphics2D g, int x, int y, int width, int height, Color bodyColor);
+}

src/DifferentRollers/RollersCount.java

@@ -0,0 +1,14 @@
+package DifferentRollers;
+
+public enum RollersCount {
+    OneRoller(1),
+    TwoRollers(2),
+    ThreeRollers(3);
+    private int numOfRollers;
+    RollersCount(int numOfRollers){
+        this.numOfRollers = numOfRollers;
+    }
+    public int getNumOfRollers(){
+        return numOfRollers;
+    }
+}

src/Drawings/CanvasExcavator.java

@@ -0,0 +1,18 @@
+package Drawings;
+
+import javax.swing.*;
+import java.awt.*;
+
+public class CanvasExcavator extends JComponent{
+    public DrawingBulldozer _drawingBulldozer;
+    public CanvasExcavator(){}
+    public void paintComponent(Graphics g){
+        if(_drawingBulldozer == null){
+            return;
+        }
+        super.paintComponent(g);
+        Graphics2D g2d = (Graphics2D) g;
+        _drawingBulldozer.DrawTransport(g2d);
+        super.repaint();
+    }
+}

src/Drawings/DirectionType.java

@@ -0,0 +1,9 @@
+package Drawings;
+
+public enum DirectionType {
+    Unknow,
+    Up,
+    Down,
+    Left,
+    Right
+}

src/Drawings/DrawingBulldozer.java

@@ -0,0 +1,191 @@
+package Drawings;
+
+import DifferentRollers.DrawingRollersCross;
+import DifferentRollers.DrawingRollersPlus;
+import DifferentRollers.DrawingRollersStar;
+import DifferentRollers.IDifferentRollers;
+import Entities.EntityBulldozer;
+
+import javax.swing.*;
+import java.awt.*;
+import java.util.Random;
+
+public class DrawingBulldozer extends JPanel {
+    public Entities.EntityBulldozer EntityBulldozer;
+    public IDifferentRollers drawingRollers;
+    public Integer _startPosX;                       // Левая координата отрисовки
+    public Integer _startPosY;                       // Верхняя координата отрисовки
+    private Integer _pictureWidth;           // Ширина окна отрисовки
+    private Integer _pictureHeight;          // Высота окна отрисовки
+    protected int _drawingExcWidth = 120;          // Ширина отрисовки трактора
+    protected int _drawingExcHeight = 70;         // Высота отрисовки трактора
+    public Integer GetPosX(){return _startPosX;}
+    public Integer GetPosY(){return _startPosY;}
+    public Integer GetWidth(){return _drawingExcWidth;}
+    public Integer GetHeight(){return _drawingExcHeight;}
+
+    protected DrawingBulldozer(){
+        _pictureWidth = null;
+        _pictureHeight = null;
+        _startPosX = null;
+        _startPosY = null;
+    }
+
+    protected void SetTypeRollers(){
+        int rollersCount = (int)(Math.random()*4);
+        switch ((int)(Math.random()*3+1)){
+            case 1:
+                drawingRollers = new DrawingRollersCross();
+                break;
+            case 2:
+                drawingRollers = new DrawingRollersPlus();
+                break;
+            case 3:
+                drawingRollers = new DrawingRollersStar();
+                break;
+            default:
+                rollersCount = 0;
+                break;
+        }
+        drawingRollers.setRollersCount(rollersCount);
+    }
+
+    public DrawingBulldozer(int speed, double weight, Color bodyColor){
+        super();
+        EntityBulldozer = new EntityBulldozer(speed, weight, bodyColor);
+        SetTypeRollers();
+    }
+
+    // Смена границ формы отрисовки
+    public void SetPictureSize(int width, int height)
+    {
+        if (_drawingExcWidth > width || _drawingExcHeight > height)
+        {
+            return;
+        }
+
+        if (_startPosX != null && _startPosY != null) {
+            if (_startPosX < 0) { _startPosX = 0; }
+            if (_startPosX + _drawingExcWidth > width) { _startPosX = width - _drawingExcWidth; }
+            if (_startPosY < 0) { _startPosY = 0; }
+            if (_startPosY + _drawingExcHeight > height) { _startPosY = height - _drawingExcHeight; }
+        }
+        _pictureWidth = width;
+        _pictureHeight = height;
+    }
+
+    //Установка позиции Экскаватора
+    public void SetPosition(int x, int y){
+        if (_pictureWidth == null || _pictureHeight == null)
+        {
+            return;
+        }
+
+        if (x + _drawingExcWidth > _pictureWidth || x < 0) {
+            Random random = new Random();
+            _startPosX = random.nextInt(_pictureWidth - _drawingExcWidth);
+        }
+        else {
+            _startPosX = x;
+        }
+
+        if (y + _drawingExcHeight > _pictureHeight || y < 0) {
+            Random random = new Random();
+            _startPosY = random.nextInt(_pictureHeight - _drawingExcHeight);
+        }
+        else {
+            _startPosY = y;
+        }
+    }
+
+    // Изменение направления движения
+    public boolean MoveTransport(DirectionType direction){
+        if (EntityBulldozer == null || _startPosX == null || _startPosY == null){
+            return false;
+        }
+        switch (direction) {
+            case Left:
+                if (_startPosX - EntityBulldozer.Step > 0) {
+                    _startPosX -= (int) EntityBulldozer.Step;
+                }
+                return true;
+            case Up:
+                if (_startPosY - EntityBulldozer.Step > 0) {
+                    _startPosY -= (int) EntityBulldozer.Step;
+                }
+                return true;
+            case Right:
+                if (_startPosX + EntityBulldozer.Step < _pictureWidth - _drawingExcWidth) {
+                    _startPosX += (int) EntityBulldozer.Step;
+                }
+                return true;
+            case Down:
+                if (_startPosY + EntityBulldozer.Step < _pictureHeight - _drawingExcHeight) {
+                    _startPosY += (int) EntityBulldozer.Step;
+                }
+                return true;
+            default:
+                return false;
+        }
+    }
+
+    // Отрисовка Экскаватора
+    public void DrawTransport(Graphics2D g){
+        if (EntityBulldozer == null || _startPosX == null || _startPosY == null){
+            return;
+        }
+
+        // Границы экскаватора
+        g.setColor(Color.BLACK);
+        g.drawRect(_startPosX + 20, _startPosY + 25, 60, 20); // главная нижняя
+        g.drawRect(_startPosX + 35, _startPosY + 10, 5, 15);
+        g.drawRect(_startPosX + 55, _startPosY + 3, 22, 22); // кабина
+
+        g.setColor(EntityBulldozer.getBodyColor());
+        g.fillRect(_startPosX + 21, _startPosY + 26, 59, 19);
+        g.fillRect(_startPosX + 36, _startPosY + 11, 4, 14);
+
+        g.setColor(Color.cyan);
+        g.fillRect(_startPosX + 56, _startPosY + 4, 21, 21);
+
+        // Гусеница
+        g.setColor(Color.BLACK);
+        g.drawRect(_startPosX + 24, _startPosY + 47, 48, 17);
+
+        // Основные катки
+        g.setColor(Color.BLACK);
+        g.drawOval(_startPosX + 15, _startPosY + 47, 17, 17);
+        g.drawOval(_startPosX + 63, _startPosY + 47, 17, 17);
+
+        g.setColor(EntityBulldozer.getBodyColor());
+        g.fillOval(_startPosX + 15, _startPosY + 47, 17, 17);
+        g.fillOval(_startPosX + 63, _startPosY + 47, 17, 17);
+
+        // Малые катки
+        g.setColor(Color.BLACK);
+        g.drawOval(_startPosX + 40, _startPosY + 48, 5, 5);
+        g.drawOval(_startPosX + 50, _startPosY + 48, 5, 5);
+
+        g.setColor(EntityBulldozer.getBodyColor());
+        g.fillOval(_startPosX + 40, _startPosY + 48, 5, 5);
+        g.fillOval(_startPosX + 50, _startPosY + 48, 5, 5);
+
+        int x = _startPosX;
+        if (drawingRollers.getRollersCount() != null){
+            switch (drawingRollers.getRollersCount()){
+                case OneRoller:
+                    drawingRollers.DrawRollers(g,x + 34, _startPosY + 55, 8, 8, EntityBulldozer.getBodyColor());
+                    break;
+                case TwoRollers:
+                    drawingRollers.DrawRollers(g,x + 34, _startPosY + 55, 8, 8, EntityBulldozer.getBodyColor());
+                    drawingRollers.DrawRollers(g,x + 44, _startPosY + 55, 8, 8, EntityBulldozer.getBodyColor());
+                    break;
+                case ThreeRollers:
+                    drawingRollers.DrawRollers(g,x + 34, _startPosY + 55, 8, 8, EntityBulldozer.getBodyColor());
+                    drawingRollers.DrawRollers(g,x + 44, _startPosY + 55, 8, 8, EntityBulldozer.getBodyColor());
+                    drawingRollers.DrawRollers(g,x + 54, _startPosY + 55, 8, 8, EntityBulldozer.getBodyColor());
+                    break;
+            }
+        }
+    }
+}

src/Drawings/DrawingExcavator.java

@@ -0,0 +1,67 @@
+package Drawings;
+
+import Entities.EntityExcavator;
+
+import java.awt.*;
+
+public class DrawingExcavator extends DrawingBulldozer{
+
+    public DrawingExcavator(int speed, double weight, Color bodyColor, Color additionalColor, boolean prop, boolean ladle){
+        EntityBulldozer = new EntityExcavator(speed, weight, bodyColor, additionalColor, prop, ladle);
+        SetTypeRollers();
+    }
+
+    // Отрисовка Экскаватора
+    @Override
+    public void DrawTransport(Graphics2D g){
+        if (EntityBulldozer == null || !(EntityBulldozer instanceof EntityExcavator excavator) || _startPosX == null || _startPosY == null){
+            return;
+        }
+        super.DrawTransport(g);
+        if (excavator.Prop){
+            g.setColor(Color.BLACK);
+            //Опоры
+            //справа
+            g.drawRect(_startPosX + 80, _startPosY + 40, 11, 3);
+            g.drawRect(_startPosX + 87, _startPosY + 43, 5, 25);
+            g.drawRect(_startPosX + 84, _startPosY + 68, 11, 3);
+
+            //слева
+            g.drawRect(_startPosX + 6, _startPosY + 40, 13, 3);
+            g.drawRect(_startPosX + 4, _startPosY + 43, 5, 25);
+            g.drawRect(_startPosX + 1, _startPosY + 68, 11, 3);
+
+            g.setColor(excavator.getAdditionalColor());
+            //покраска справа
+            g.fillRect(_startPosX + 81, _startPosY + 41, 10, 2);
+            g.fillRect(_startPosX + 88, _startPosY + 44, 4, 24);
+            g.fillRect(_startPosX + 85, _startPosY + 69, 10, 2);
+
+            //покраска слева
+            g.fillRect(_startPosX + 7, _startPosY + 41, 12, 2);
+            g.fillRect(_startPosX + 5, _startPosY + 44, 4, 24);
+            g.fillRect(_startPosX + 2, _startPosY + 69, 10, 2);
+        }
+
+        if(excavator.Ladle){
+            g.setColor(Color.BLACK);
+            //Ковш
+            //ковш(стрела)
+            g.drawRect(_startPosX + 77, _startPosY + 17, 14, 8);
+            g.drawRect(_startPosX + 91, _startPosY + 9, 20, 7);
+            g.drawRect(_startPosX + 111, _startPosY + 17, 9, 20);
+
+            int[] pointsLadleX = {_startPosX + 120, _startPosX + 104, _startPosX + 120};
+            int[] pointsLadleY = {_startPosY + 37, _startPosY + 54, _startPosY + 54};
+
+            Polygon Ladle = new Polygon(pointsLadleX, pointsLadleY, 3);
+            g.drawPolygon(Ladle);
+            g.setColor(excavator.getAdditionalColor());
+            g.fillPolygon(Ladle);
+            //покраска
+            g.fillRect(_startPosX + 78, _startPosY + 18, 13, 7);
+            g.fillRect(_startPosX + 92, _startPosY + 10, 19, 6);
+            g.fillRect(_startPosX + 112, _startPosY + 18, 8, 19);
+        }
+    }
+}

src/Entities/EntityBulldozer.java

@@ -0,0 +1,20 @@
+package Entities;
+
+import java.awt.*;
+
+public class EntityBulldozer {
+    private Integer Speed;
+    private Double Weight;
+    private Color BodyColor;
+
+    public Color getBodyColor() {
+        return BodyColor;
+    }
+    public double Step;
+    public EntityBulldozer(int speed, double weight, Color bodyColor){
+        Speed = speed;
+        Weight = weight;
+        BodyColor = bodyColor;
+        Step = Speed * 100 / Weight;
+    }
+}

src/Entities/EntityExcavator.java

@@ -0,0 +1,18 @@
+package Entities;
+
+import java.awt.*;
+
+public class EntityExcavator extends EntityBulldozer{
+    private Color AdditionalColor;
+    public Color getAdditionalColor(){
+        return AdditionalColor;
+    }
+    public boolean Prop;
+    public boolean Ladle;
+    public EntityExcavator(int speed, double weight, Color bodyColor, Color additionalColor, boolean prop, boolean ladle){
+        super(speed, weight, bodyColor);
+        AdditionalColor = additionalColor;
+        Prop = prop;
+        Ladle = ladle;
+    }
+}

src/FormExcavator.java

@@ -0,0 +1,188 @@
+import Drawings.CanvasExcavator;
+import Drawings.DirectionType;
+import Drawings.DrawingBulldozer;
+import Drawings.DrawingExcavator;
+import MovementStrategy.*;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.ComponentAdapter;
+import java.awt.event.ComponentEvent;
+import java.util.Random;
+
+public class FormExcavator extends JFrame {
+    private String title;
+    private Dimension dimension;
+    private int Width, Height;
+    private CanvasExcavator canvasExcavator = new CanvasExcavator();
+    private JButton CreateButton = new JButton("Создать экскаватор");
+    private JButton CreateBullButton = new JButton("Создать бульдозер");
+    private JButton UpButton = new JButton();
+    private JButton DownButton = new JButton();
+    private JButton LeftButton = new JButton();
+    private JButton RightButton = new JButton();
+    private AbstractStrategy _strategy;
+    private JComboBox ComboBoxStrategy = new JComboBox(new String[]{"К центру", "К краю"});
+    private JButton ButtonStrategy = new JButton("Шаг");
+    public FormExcavator(String title, Dimension dimension) {
+        this.title = title;
+        this.dimension = dimension;
+    }
+
+    private void CreateObject(String typeOfClass) {
+        int StartPositionX = (int)(Math.random() * 90 + 10);
+        int StartPositionY = (int)(Math.random() * 90 + 10);
+        int speed = (int)(Math.random() * 300 + 100);
+        double weight = (double)(Math.random() * 3000 + 1000);
+        Color bodyColor = new Color((int)(Math.random() * 255 + 0),(int)(Math.random() * 255 + 0),(int)(Math.random() * 255 + 0));
+        switch (typeOfClass) {
+            case "DrawingBulldozer":
+                canvasExcavator._drawingBulldozer = new DrawingBulldozer(speed, weight, bodyColor);
+                canvasExcavator._drawingBulldozer.SetPictureSize(Width, Height);
+                canvasExcavator._drawingBulldozer.SetPosition(StartPositionX, StartPositionY);
+                canvasExcavator.repaint();
+                break;
+            case "DrawingExcavator":
+                Color additionalColor = new Color((int)(Math.random() * 255 + 0),(int)(Math.random() * 255 + 0),(int)(Math.random() * 255 + 0));
+                boolean prop = new Random().nextBoolean();
+                boolean ladle = new Random().nextBoolean();
+                canvasExcavator._drawingBulldozer = new DrawingExcavator(speed, weight, bodyColor, additionalColor, prop, ladle);
+                canvasExcavator._drawingBulldozer.SetPictureSize(Width, Height);
+                canvasExcavator._drawingBulldozer.SetPosition(StartPositionX, StartPositionY);
+                canvasExcavator.repaint();
+                break;
+            default: return;
+        }
+        _strategy = null;
+        ComboBoxStrategy.setEnabled(true);
+    }
+
+    public void Init() {
+        setTitle(title);
+        setMinimumSize(dimension);
+        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        Width = getWidth() - 15;
+        Height = getHeight() - 35;
+        _strategy = null;
+
+        CreateButton.setName("Create");
+        Icon iconUp = new ImageIcon("res/up.png");
+        UpButton.setIcon(iconUp);
+        UpButton.setName("Up");
+        DownButton.setName("Down");
+        Icon iconDown = new ImageIcon("res/down.png");
+        DownButton.setIcon(iconDown);
+        LeftButton.setName("Left");
+        Icon iconLeft = new ImageIcon("res/left.png");
+        LeftButton.setIcon(iconLeft);
+        RightButton.setName("Right");
+        Icon iconRight = new ImageIcon("res/right.png");
+        RightButton.setIcon(iconRight);
+
+        CreateButton.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                CreateObject("DrawingExcavator");
+            }
+        });
+
+        CreateBullButton.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                CreateObject("DrawingBulldozer");
+            }
+        });
+
+        ButtonStrategy.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                if (canvasExcavator._drawingBulldozer == null) return;
+                if (ComboBoxStrategy.isEnabled())
+                {
+                    int index = ComboBoxStrategy.getSelectedIndex();
+                    switch(index)
+                    {
+                        case 0:
+                            _strategy = new MoveToCenter();
+                            break;
+                        case 1:
+                            _strategy = new MoveToBorder();
+                            break;
+                        default:
+                            _strategy = null;
+                            break;
+                    }
+                    if (_strategy == null)
+                    {
+                        return;
+                    }
+                    _strategy.SetData(new MoveableExcavator(canvasExcavator._drawingBulldozer), Width, Height);
+                }
+                if (_strategy == null)
+                {
+                    return;
+                }
+                ComboBoxStrategy.setEnabled(false);
+                _strategy.MakeStep();
+                if (_strategy.GetStatus() == StrategyStatus.Finish)
+                {
+                    ComboBoxStrategy.setEnabled(true);
+                    _strategy = null;
+                }
+            }
+        });
+
+        ActionListener actionListener = new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent event) {
+                if (canvasExcavator._drawingBulldozer == null) return;
+                boolean result = false;
+                switch ((((JButton)(event.getSource())).getName())) {
+                    case "Up":
+                        result = canvasExcavator._drawingBulldozer.MoveTransport(DirectionType.Up);
+                        break;
+                    case "Down":
+                        result = canvasExcavator._drawingBulldozer.MoveTransport(DirectionType.Down);
+                        break;
+                    case "Left":
+                        result = canvasExcavator._drawingBulldozer.MoveTransport(DirectionType.Left);
+                        break;
+                    case "Right":
+                        result = canvasExcavator._drawingBulldozer.MoveTransport(DirectionType.Right);
+                        break;
+                }
+                if (result) {
+                    canvasExcavator.repaint();
+                }
+            }
+        };
+        UpButton.addActionListener(actionListener);
+        DownButton.addActionListener(actionListener);
+        LeftButton.addActionListener(actionListener);
+        RightButton.addActionListener(actionListener);
+
+        setSize(dimension.width,dimension.height);
+        setLayout(null);
+        canvasExcavator.setBounds(0,0, getWidth(), getHeight());
+        CreateButton.setBounds(10, getHeight() - 85, 160, 35);
+        CreateBullButton.setBounds(180, getHeight() - 85, 160, 35);
+        UpButton.setBounds(getWidth() - 110, getHeight() - 135, 35, 35);
+        DownButton.setBounds(getWidth() - 110, getHeight() - 85, 35, 35);
+        RightButton.setBounds(getWidth() - 60, getHeight() - 85, 35, 35);
+        LeftButton.setBounds(getWidth() - 160, getHeight() - 85, 35, 35);
+        ComboBoxStrategy.setBounds(getWidth() - 170, 10, 140, 25);
+        ButtonStrategy.setBounds(getWidth() - 130, 45, 100, 25);
+        add(CreateButton);
+        add(CreateBullButton);
+        add(UpButton);
+        add(DownButton);
+        add(RightButton);
+        add(LeftButton);
+        add(ButtonStrategy);
+        add(ComboBoxStrategy);
+        add(canvasExcavator);
+        setVisible(true);
+    }
+}

src/Main.java

@@ -1,5 +0,0 @@
-public class Main {
-    public static void main(String[] args) {
-        System.out.println("Hello world!");
-    }
-}

src/MovementStrategy/AbstractStrategy.java

@@ -0,0 +1,56 @@
+package MovementStrategy;
+
+public abstract class AbstractStrategy {
+    private IMoveableObjects _moveableObject;
+    private StrategyStatus _state = StrategyStatus.NotInit;
+    public int FieldWidth;
+    public int FieldHeight;
+    public StrategyStatus GetStatus() {return _state;}
+    public void SetData(IMoveableObjects moveableObjects, int width, int height)
+    {
+        if (moveableObjects == null)
+        {
+            _state = StrategyStatus.NotInit;
+            return;
+        }
+        _state = StrategyStatus.InProgress;
+        _moveableObject = moveableObjects;
+        FieldWidth = width;
+        FieldHeight = height;
+    }
+    public void MakeStep()
+    {
+        if (_state != StrategyStatus.InProgress) return;
+        if (IsTargetDestination())
+        {
+            _state = StrategyStatus.Finish;
+            return;
+        }
+        MoveToTarget();
+    }
+    protected boolean MoveLeft() {return MoveTo(MovementDirection.Left);}
+    protected boolean MoveRight() {return MoveTo(MovementDirection.Right);}
+    protected boolean MoveUp() {return MoveTo(MovementDirection.Up);}
+    protected boolean MoveDown() {return MoveTo(MovementDirection.Down);}
+    protected ObjectParameters GetObjectParameters() {return _moveableObject.GetObjectPosition();}
+    protected Integer GetStep()
+    {
+        if (_state != StrategyStatus.InProgress)
+        {
+            return null;
+        }
+        return _moveableObject.GetStep();
+    }
+    protected abstract void MoveToTarget();
+    protected abstract boolean IsTargetDestination();
+    private boolean MoveTo(MovementDirection movementDirection)
+    {
+        if (_state != StrategyStatus.InProgress)
+        {
+            return false;
+        }
+        boolean stateTryMoveObject = _moveableObject.TryMoveObject(movementDirection);
+        if (stateTryMoveObject) return stateTryMoveObject;
+        return false;
+    }
+}

src/MovementStrategy/IMoveableObjects.java

@@ -0,0 +1,7 @@
+package MovementStrategy;
+
+public interface IMoveableObjects {
+    ObjectParameters GetObjectPosition();
+    int GetStep();
+    boolean TryMoveObject(MovementDirection direction);
+}

src/MovementStrategy/MoveToBorder.java

@@ -0,0 +1,26 @@
+package MovementStrategy;
+
+public class MoveToBorder extends AbstractStrategy{
+    @Override
+    protected boolean IsTargetDestination(){
+        ObjectParameters objParams = GetObjectParameters();
+        if (objParams == null){
+            return false;
+        }
+        return objParams.RightBorder + GetStep() >= FieldWidth - GetStep() && objParams.DownBorder + GetStep() >= FieldHeight - GetStep();
+    }
+
+    @Override
+    protected void MoveToTarget(){
+        ObjectParameters objParams = GetObjectParameters();
+        if (objParams == null)
+        {
+            return;
+        }
+        //реализация в правый нижний угол
+        int x = objParams.RightBorder;
+        if (x + GetStep() < FieldWidth) MoveRight();
+        int y = objParams.DownBorder;
+        if (y + GetStep() < FieldHeight) MoveDown();
+    }
+}

src/MovementStrategy/MoveToCenter.java

@@ -0,0 +1,48 @@
+package MovementStrategy;
+
+public class MoveToCenter extends AbstractStrategy{
+    @Override
+    protected boolean IsTargetDestination() {
+        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;
+    }
+    @Override
+    protected 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();
+            }
+        }
+    }
+}

src/MovementStrategy/MoveableExcavator.java

@@ -0,0 +1,45 @@
+package MovementStrategy;
+
+import Drawings.CanvasExcavator;
+import Drawings.DrawingBulldozer;
+import Drawings.DirectionType;
+
+public class MoveableExcavator implements IMoveableObjects{
+    private CanvasExcavator canvas = new CanvasExcavator();
+    public MoveableExcavator(DrawingBulldozer drawingBulldozer){
+        canvas._drawingBulldozer = drawingBulldozer;
+    }
+
+    @Override
+    public ObjectParameters GetObjectPosition() {
+        if (canvas._drawingBulldozer == null || canvas._drawingBulldozer.EntityBulldozer == null ||
+                canvas._drawingBulldozer.GetPosX() == null || canvas._drawingBulldozer.GetPosY() == null)
+        {
+            return null;
+        }
+        return new ObjectParameters(canvas._drawingBulldozer.GetPosX(), canvas._drawingBulldozer.GetPosY(),
+                canvas._drawingBulldozer.GetWidth(), canvas._drawingBulldozer.GetHeight());
+    }
+    @Override
+    public int GetStep() {
+        return (int)(canvas._drawingBulldozer.EntityBulldozer.Step);
+    }
+    @Override
+    public boolean TryMoveObject(MovementDirection direction) {
+        if (canvas._drawingBulldozer == null || canvas._drawingBulldozer.EntityBulldozer == null)
+        {
+            return false;
+        }
+        return canvas._drawingBulldozer.MoveTransport(GetDirectionType(direction));
+    }
+    private static DirectionType GetDirectionType(MovementDirection direction)
+    {
+        switch (direction) {
+            case Left: return DirectionType.Left;
+            case Right: return DirectionType.Right;
+            case Up: return DirectionType.Up;
+            case Down: return DirectionType.Down;
+            default: return DirectionType.Unknow;
+        }
+    }
+}

src/MovementStrategy/MovementDirection.java

@@ -0,0 +1,8 @@
+package MovementStrategy;
+
+public enum MovementDirection {
+    Up,
+    Down,
+    Left,
+    Right
+}

src/MovementStrategy/ObjectParameters.java

@@ -0,0 +1,27 @@
+package MovementStrategy;
+
+public class ObjectParameters {
+    private int _x;
+    private int _y;
+    private int _width;
+    private int _height;
+    public int LeftBorder = _x;
+    public int TopBorder = _y;
+    public int RightBorder = _x + _width;
+    public int DownBorder = _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;
+        LeftBorder = _x;
+        TopBorder = _y;
+        RightBorder = _x + _width;
+        DownBorder = _y + _height;
+        ObjectMiddleHorizontal = _x + _width / 2;
+        ObjectMiddleVertical = _y + _height / 2;
+    }
+}

src/MovementStrategy/StrategyStatus.java

@@ -0,0 +1,7 @@
+package MovementStrategy;
+
+public enum StrategyStatus {
+    NotInit,
+    InProgress,
+    Finish
+}

src/Program.java

@@ -0,0 +1,9 @@
+import java.awt.*;
+
+public class Program {
+    public static void main(String[] args) {
+        FormExcavator form = new FormExcavator("Экскаватор", new Dimension(700, 500));
+        form.Init();
+        form.setLocationRelativeTo(null);
+    }
+}