LabWork04: Работа готова, возможен рефакторинг

DrawningObjectExcavator.java

@@ -2,12 +2,16 @@ import javax.print.DocFlavor;
 import java.awt.*;
 
 public class DrawningObjectExcavator implements IDrawningObject{
-    private DrawningTracktor _tracktor = null;
+    private DrawningTracktor _tracktor;
 
     public DrawningObjectExcavator(DrawningTracktor tracktor) {
         this._tracktor = tracktor;
     }
 
+    public DrawningTracktor getTracktor() {
+        return _tracktor;
+    }
+
     public float getStep() {
         if (_tracktor != null && _tracktor.Tracktor != null) {
             return _tracktor.Tracktor.getStep();

FormMapWithSetTracktor.form

@@ -3,12 +3,12 @@
   <grid id="27dc6" binding="ContentPanel" layout-manager="GridLayoutManager" row-count="1" column-count="2" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
     <margin top="0" left="0" bottom="0" right="0"/>
     <constraints>
-      <xy x="20" y="20" width="663" height="479"/>
+      <xy x="20" y="20" width="663" height="584"/>
     </constraints>
     <properties/>
     <border type="none"/>
     <children>
-      <grid id="afeba" binding="toolsGroup" layout-manager="GridLayoutManager" row-count="10" column-count="3" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
+      <grid id="afeba" binding="toolsGroup" layout-manager="GridLayoutManager" row-count="15" column-count="3" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
         <margin top="0" left="0" bottom="0" right="0"/>
         <constraints>
           <grid row="0" column="1" row-span="1" col-span="1" vsize-policy="3" hsize-policy="0" anchor="0" fill="3" indent="0" use-parent-layout="false">
@@ -26,20 +26,9 @@
               <text value="Инструменты"/>
             </properties>
           </component>
-          <component id="c455c" class="javax.swing.JComboBox" binding="comboBoxMapSelector">
-            <constraints>
-              <grid row="1" column="0" row-span="1" col-span="3" vsize-policy="0" hsize-policy="2" anchor="8" fill="1" indent="0" use-parent-layout="false"/>
-            </constraints>
-            <properties>
-              <model>
-                <item value="Простая карта"/>
-                <item value="Свалка карта"/>
-              </model>
-            </properties>
-          </component>
           <component id="ca274" class="javax.swing.JButton" binding="buttonAddTracktor">
             <constraints>
-              <grid row="2" column="0" row-span="1" col-span="3" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+              <grid row="7" column="0" row-span="1" col-span="3" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
             </constraints>
             <properties>
               <text value="Добавить трактор"/>
@@ -47,7 +36,7 @@
           </component>
           <component id="8925f" class="javax.swing.JFormattedTextField" binding="textBoxPosition">
             <constraints>
-              <grid row="3" column="0" row-span="1" col-span="3" vsize-policy="0" hsize-policy="6" anchor="8" fill="1" indent="0" use-parent-layout="false">
+              <grid row="8" column="0" row-span="1" col-span="3" vsize-policy="0" hsize-policy="6" anchor="8" fill="1" indent="0" use-parent-layout="false">
                 <preferred-size width="150" height="-1"/>
               </grid>
             </constraints>
@@ -55,7 +44,7 @@
           </component>
           <component id="e424c" class="javax.swing.JButton" binding="buttonRemoveTracktor">
             <constraints>
-              <grid row="4" column="0" row-span="1" col-span="3" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+              <grid row="9" column="0" row-span="1" col-span="3" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
             </constraints>
             <properties>
               <text value="Удалить трактор"/>
@@ -63,7 +52,7 @@
           </component>
           <component id="5e5ae" class="javax.swing.JButton" binding="buttonShowStorage">
             <constraints>
-              <grid row="5" column="0" row-span="1" col-span="3" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+              <grid row="10" column="0" row-span="1" col-span="3" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
             </constraints>
             <properties>
               <text value="Посмотреть хранилище"/>
@@ -71,7 +60,7 @@
           </component>
           <component id="52c38" class="javax.swing.JButton" binding="buttonShowOnMap">
             <constraints>
-              <grid row="6" column="0" row-span="1" col-span="3" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+              <grid row="11" column="0" row-span="1" col-span="3" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
             </constraints>
             <properties>
               <text value="Показать карту"/>
@@ -79,7 +68,7 @@
           </component>
           <component id="d1efe" class="javax.swing.JButton" binding="buttonLeft">
             <constraints>
-              <grid row="9" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false">
+              <grid row="14" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false">
                 <minimum-size width="30" height="30"/>
                 <maximum-size width="30" height="30"/>
               </grid>
@@ -91,7 +80,7 @@
           </component>
           <component id="11d8a" class="javax.swing.JButton" binding="buttonRight">
             <constraints>
-              <grid row="9" column="2" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false">
+              <grid row="14" column="2" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false">
                 <minimum-size width="30" height="30"/>
                 <maximum-size width="30" height="30"/>
               </grid>
@@ -103,7 +92,7 @@
           </component>
           <component id="bffec" class="javax.swing.JButton" binding="buttonUp">
             <constraints>
-              <grid row="8" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false">
+              <grid row="13" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false">
                 <minimum-size width="30" height="30"/>
                 <maximum-size width="30" height="30"/>
               </grid>
@@ -115,7 +104,7 @@
           </component>
           <component id="1f0dc" class="javax.swing.JButton" binding="buttonDown">
             <constraints>
-              <grid row="9" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false">
+              <grid row="14" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false">
                 <minimum-size width="30" height="30"/>
                 <maximum-size width="30" height="30"/>
               </grid>
@@ -127,9 +116,83 @@
           </component>
           <vspacer id="71dd1">
             <constraints>
-              <grid row="7" column="1" row-span="1" col-span="1" vsize-policy="6" hsize-policy="1" anchor="0" fill="2" indent="0" use-parent-layout="false"/>
+              <grid row="12" column="1" row-span="1" col-span="1" vsize-policy="6" hsize-policy="1" anchor="0" fill="2" indent="0" use-parent-layout="false"/>
             </constraints>
           </vspacer>
+          <grid id="c0175" binding="mapsGroup" layout-manager="GridLayoutManager" row-count="6" column-count="1" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
+            <margin top="0" left="0" bottom="0" right="0"/>
+            <constraints>
+              <grid row="1" column="0" row-span="4" col-span="3" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false"/>
+            </constraints>
+            <properties/>
+            <border type="none"/>
+            <children>
+              <component id="5cce4" class="javax.swing.JLabel" binding="mapsLabel">
+                <constraints>
+                  <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+                </constraints>
+                <properties>
+                  <text value="Карты"/>
+                </properties>
+              </component>
+              <component id="65411" class="javax.swing.JTextField" binding="textFieldMapName">
+                <constraints>
+                  <grid row="1" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="6" anchor="8" fill="1" indent="0" use-parent-layout="false">
+                    <preferred-size width="150" height="-1"/>
+                  </grid>
+                </constraints>
+                <properties/>
+              </component>
+              <component id="c455c" class="javax.swing.JComboBox" binding="comboBoxMapSelector">
+                <constraints>
+                  <grid row="2" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="2" anchor="8" fill="1" indent="0" use-parent-layout="false"/>
+                </constraints>
+                <properties>
+                  <model>
+                    <item value="Простая карта"/>
+                    <item value="Свалка карта"/>
+                  </model>
+                </properties>
+              </component>
+              <component id="e0b94" class="javax.swing.JButton" binding="buttonAddMap">
+                <constraints>
+                  <grid row="3" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+                </constraints>
+                <properties>
+                  <text value="Добавить карту"/>
+                </properties>
+              </component>
+              <component id="3ffeb" class="javax.swing.JList" binding="listBoxMaps">
+                <constraints>
+                  <grid row="4" column="0" row-span="1" col-span="1" vsize-policy="6" hsize-policy="2" anchor="0" fill="3" indent="0" use-parent-layout="false">
+                    <preferred-size width="150" height="50"/>
+                  </grid>
+                </constraints>
+                <properties/>
+              </component>
+              <component id="7fd9" class="javax.swing.JButton" binding="buttonDeleteMap">
+                <constraints>
+                  <grid row="5" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+                </constraints>
+                <properties>
+                  <text value="Удалить карту"/>
+                </properties>
+              </component>
+            </children>
+          </grid>
+          <vspacer id="f967a">
+            <constraints>
+              <grid row="5" column="1" row-span="1" col-span="1" vsize-policy="6" hsize-policy="1" anchor="0" fill="2" indent="0" use-parent-layout="false"/>
+            </constraints>
+          </vspacer>
+          <component id="edacb" class="javax.swing.JButton" binding="buttonShowDeleted">
+            <constraints>
+              <grid row="6" column="0" row-span="1" col-span="3" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+            </constraints>
+            <properties>
+              <text value="Показать удаленные"/>
+            </properties>
+          </component>
         </children>
       </grid>
       <grid id="c1cce" binding="pictureBox" layout-manager="GridLayoutManager" row-count="1" column-count="1" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">

FormMapWithSetTracktor.java

@@ -3,13 +3,16 @@ import javax.swing.text.DefaultFormatterFactory;
 import javax.swing.text.MaskFormatter;
 import java.awt.*;
 import java.text.ParseException;
+import java.util.HashMap;
+import java.util.LinkedList;
+import java.util.Optional;
 
 public class FormMapWithSetTracktor extends JFrame {
     private JPanel ContentPanel;
     private JPanel pictureBox;
     private JPanel toolsGroup;
     private JLabel toolsLabel;
-    private JComboBox comboBoxMapSelector;
+    private JComboBox<String> comboBoxMapSelector;
     private JButton buttonAddTracktor;
     private JFormattedTextField textBoxPosition;
     private JButton buttonRemoveTracktor;
@@ -19,14 +22,27 @@ public class FormMapWithSetTracktor extends JFrame {
     private JButton buttonLeft;
     private JButton buttonRight;
     private JButton buttonDown;
+    private JLabel mapsLabel;
+    private JTextField textFieldMapName;
+    private JButton buttonAddMap;
+    private JList<String> listBoxMaps;
+    private JPanel mapsGroup;
+    private JButton buttonDeleteMap;
+    private JButton buttonShowDeleted;
 
     private Image bufferedImage;
-    private MapWithSetTracktorGeneric<DrawningObjectExcavator, AbstractMap> _mapTracktorCollectionGeneric;
+    private final HashMap<String, AbstractMap> _mapsDict = new HashMap<>() {{
+        put("Простая карта", new SimpleMap());
+        put("Свалка карта", new DumpMap());
+    }};
+    private final MapsCollection _mapsCollection;
+    private final LinkedList<IDrawningObject> deletedObjects = new LinkedList<>();
 
     public FormMapWithSetTracktor() {
         this.setTitle("Трактор");
         this.setContentPane(ContentPanel);
-        this.setSize(800,500);
+        this.setSize(800,600);
+        this.setVisible(true);
 
         try {
             textBoxPosition.setFormatterFactory(new DefaultFormatterFactory(new MaskFormatter("##")));
@@ -34,22 +50,46 @@ public class FormMapWithSetTracktor extends JFrame {
             e.printStackTrace();
         }
 
-        comboBoxMapSelector.addActionListener(e -> {
+        _mapsCollection = new MapsCollection(pictureBox.getWidth(), pictureBox.getHeight());
-            AbstractMap map = switch (((JComboBox) e.getSource()).getSelectedItem().toString()) {
+        comboBoxMapSelector.removeAllItems();
-                case "Простая карта" -> new SimpleMap();
+        for (var key : _mapsDict.keySet()) {
-                case "Свалка карта" -> new DumpMap();
+            comboBoxMapSelector.addItem(key);
-                default -> null;
+        }
-            };
 
-            if (map != null) {
+        buttonAddMap.addActionListener(e -> {
-                _mapTracktorCollectionGeneric = new MapWithSetTracktorGeneric<>(pictureBox.getWidth(), pictureBox.getHeight(), map);
+            if (comboBoxMapSelector.getSelectedIndex() == -1 || textFieldMapName.getText() == null || textFieldMapName.getText().isEmpty()) {
-            } else {
+                JOptionPane.showMessageDialog(this, "Не все данные заполнены", "Ошибка", JOptionPane.ERROR_MESSAGE);
-                _mapTracktorCollectionGeneric = null;
+                return;
+            }
+            if (!_mapsDict.containsKey((String)comboBoxMapSelector.getSelectedItem())) {
+                JOptionPane.showMessageDialog(this, "Нет такой карты", "Ошибка", JOptionPane.ERROR_MESSAGE);
+                return;
+            }
+            _mapsCollection.addMap(textFieldMapName.getText(), _mapsDict.get((String)comboBoxMapSelector.getSelectedItem()));
+            reloadMaps();
+        });
+
+        buttonDeleteMap.addActionListener(e -> {
+            if (listBoxMaps.getSelectedIndex() == -1) {
+                return;
+            }
+
+            if (JOptionPane.showConfirmDialog(this, "Удалить карту " + listBoxMaps.getSelectedValue() + "?", "Удаление", JOptionPane.YES_NO_OPTION) == JOptionPane.YES_OPTION) {
+                _mapsCollection.deleteMap(Optional.ofNullable(listBoxMaps.getSelectedValue()).orElse(""));
+                reloadMaps();
             }
         });
 
+        listBoxMaps.addListSelectionListener(e -> {
+            if (listBoxMaps.getSelectedValue() != null) {
+                bufferedImage = _mapsCollection.getMap(Optional.ofNullable(listBoxMaps.getSelectedValue()).orElse("")).showSet();
+                repaint();
+            }
+        });
+
+
         buttonAddTracktor.addActionListener(e -> {
-            if (_mapTracktorCollectionGeneric == null) {
+            if (listBoxMaps.getSelectedIndex() == -1) {
                 return;
             }
 
@@ -61,10 +101,10 @@ public class FormMapWithSetTracktor extends JFrame {
 
             if (dialog.getSelectedTracktor() != null) {
                 DrawningObjectExcavator tracktor = new DrawningObjectExcavator(dialog.getSelectedTracktor());
-                if (_mapTracktorCollectionGeneric.addTracktor(tracktor) != -1)
+                if (_mapsCollection.getMap(Optional.ofNullable(listBoxMaps.getSelectedValue()).orElse("")).addTracktor(tracktor) != -1)
                 {
                     JOptionPane.showMessageDialog(this, "Объект добавлен", "Успех", JOptionPane.INFORMATION_MESSAGE);
-                    bufferedImage = _mapTracktorCollectionGeneric.showSet();
+                    bufferedImage = _mapsCollection.getMap(Optional.ofNullable(listBoxMaps.getSelectedValue()).orElse("")).showSet();
                     repaint();
                 }
                 else
@@ -86,9 +126,11 @@ public class FormMapWithSetTracktor extends JFrame {
 
             int position = Integer.parseInt(text);
 
-            if (_mapTracktorCollectionGeneric.removeTracktorAt(position) != null) {
+            IDrawningObject deleted = _mapsCollection.getMap(Optional.ofNullable(listBoxMaps.getSelectedValue()).orElse("")).removeTracktorAt(position);
+            if (deleted!=null) {
+                deletedObjects.add(deleted);
                 JOptionPane.showMessageDialog(this, "Объект удалён", "Успех", JOptionPane.INFORMATION_MESSAGE);
-                bufferedImage = _mapTracktorCollectionGeneric.showSet();
+                bufferedImage = _mapsCollection.getMap(Optional.ofNullable(listBoxMaps.getSelectedValue()).orElse("")).showSet();
                 repaint();
             } else {
                 JOptionPane.showMessageDialog(this, "Не удалось удалить объект", "Провал", JOptionPane.INFORMATION_MESSAGE);
@@ -96,50 +138,77 @@ public class FormMapWithSetTracktor extends JFrame {
         });
 
         buttonShowStorage.addActionListener(e -> {
-            if (_mapTracktorCollectionGeneric == null) {
+            if (listBoxMaps.getSelectedIndex() == -1) {
                 return;
             }
-            bufferedImage = _mapTracktorCollectionGeneric.showSet();
+            bufferedImage = _mapsCollection.getMap(Optional.ofNullable(listBoxMaps.getSelectedValue()).orElse("")).showSet();
             repaint();
         });
 
         buttonShowOnMap.addActionListener(e -> {
-            if (_mapTracktorCollectionGeneric == null) {
+            if (listBoxMaps.getSelectedIndex() == -1) {
                 return;
             }
-            bufferedImage = _mapTracktorCollectionGeneric.showOnMap();
+            bufferedImage = _mapsCollection.getMap(Optional.ofNullable(listBoxMaps.getSelectedValue()).orElse("")).showOnMap();
             repaint();
         });
 
+        buttonShowDeleted.addActionListener(e -> {
+            if (!deletedObjects.isEmpty()) {
+                DrawningObjectExcavator deleted = (DrawningObjectExcavator) deletedObjects.pop();
+                FormTracktor dialog = new FormTracktor(deleted.getTracktor());
+                dialog.setSize(800, 500);
+                dialog.setModalityType(Dialog.ModalityType.APPLICATION_MODAL);
+                dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
+
+                dialog.setVisible(true);
+            } else {
+                JOptionPane.showMessageDialog(this, "Связанный список удалённых объектов пуст", "Провал", JOptionPane.INFORMATION_MESSAGE);
+            }
+        });
+
         buttonLeft.addActionListener(e -> {
-            if (_mapTracktorCollectionGeneric != null) {
+            if (listBoxMaps.getSelectedIndex() != -1) {
-                bufferedImage = _mapTracktorCollectionGeneric.moveObject(Direction.Left);
+                bufferedImage = _mapsCollection.getMap(Optional.ofNullable(listBoxMaps.getSelectedValue()).orElse("")).moveObject(Direction.Left);
                 repaint();
             }
         });
 
         buttonRight.addActionListener(e -> {
-            if (_mapTracktorCollectionGeneric != null) {
+            if (listBoxMaps.getSelectedIndex() != -1) {
-                bufferedImage = _mapTracktorCollectionGeneric.moveObject(Direction.Right);
+                bufferedImage = _mapsCollection.getMap(Optional.ofNullable(listBoxMaps.getSelectedValue()).orElse("")).moveObject(Direction.Right);
                 repaint();
             }
         });
 
         buttonUp.addActionListener(e -> {
-            if (_mapTracktorCollectionGeneric != null) {
+            if (listBoxMaps.getSelectedIndex() != -1) {
-                bufferedImage = _mapTracktorCollectionGeneric.moveObject(Direction.Up);
+                bufferedImage = _mapsCollection.getMap(Optional.ofNullable(listBoxMaps.getSelectedValue()).orElse("")).moveObject(Direction.Up);
                 repaint();
             }
         });
 
         buttonDown.addActionListener(e -> {
-            if (_mapTracktorCollectionGeneric != null) {
+            if (listBoxMaps.getSelectedIndex() != -1) {
-                bufferedImage = _mapTracktorCollectionGeneric.moveObject(Direction.Down);
+                bufferedImage = _mapsCollection.getMap(Optional.ofNullable(listBoxMaps.getSelectedValue()).orElse("")).moveObject(Direction.Down);
                 repaint();
             }
         });
     }
 
+    private void reloadMaps() {
+        int index = listBoxMaps.getSelectedIndex();
+
+        listBoxMaps.setListData(_mapsCollection.getKeys().toArray(new String[0]));
+        int size = listBoxMaps.getModel().getSize();
+
+        if (size > 0 && (index == -1 || index >= size)) {
+            listBoxMaps.setSelectedIndex(0);
+        } else if (index > -1 && index < size) {
+            listBoxMaps.setSelectedIndex(index);
+        }
+    }
+
     @Override
     public void paint(Graphics g) {
         super.paint(g);

FormTracktor.java

@@ -114,6 +114,11 @@ public class FormTracktor extends JDialog {
         repaint();
     }
 
+    public FormTracktor(DrawningTracktor tracktor) {
+        this();
+        _tracktor = tracktor;
+        repaint();
+    }
     public DrawningTracktor getSelectedTracktor() {
         return selectedTracktor;
     }

MapWithSetTracktorGeneric.java

@@ -1,18 +1,19 @@
 import java.awt.*;
 import java.awt.image.BufferedImage;
+import java.util.LinkedList;
 
 public class MapWithSetTracktorGeneric <T extends IDrawningObject, U extends AbstractMap>{
     public final int _pictureWidth;
     public final int _pictureHeight;
     public final int _placeSizeWidth = 150;
     public final int _placeSizeHeight = 100;
-    private final SetTracktorGeneric<T> _setTracktor;
+    public final SetTracktorGeneric<T> _setTracktor;
     private final U _map;
 
     public MapWithSetTracktorGeneric(int picWidth, int picHeight, U map) {
         int width = picWidth / _placeSizeWidth;
         int height = picHeight / _placeSizeHeight;
-        _setTracktor = new SetTracktorGeneric<T>(width * height);
+        _setTracktor = new SetTracktorGeneric<>(width * height);
         _pictureWidth = picWidth;
         _pictureHeight = picHeight;
         _map = map;
@@ -36,15 +37,14 @@ public class MapWithSetTracktorGeneric <T extends IDrawningObject, U extends Abs
 
     public Image showOnMap() {
         shaking();
-        for (int i = 0; i < _setTracktor.getCount(); i++)
+        for (var tracktor : _setTracktor.getTracktors())
         {
-            var tracktor  = _setTracktor.get(i);
             if (tracktor != null)
             {
                 return _map.CreateMap(_pictureWidth, _pictureHeight, tracktor);
             }
         }
-        return new BufferedImage(_pictureWidth, _pictureHeight, BufferedImage.TYPE_INT_ARGB);
+        return new BufferedImage(_pictureWidth, _pictureHeight, BufferedImage.TYPE_INT_RGB);
     }
 
     public Image moveObject(Direction direction) {
@@ -137,18 +137,17 @@ public class MapWithSetTracktorGeneric <T extends IDrawningObject, U extends Abs
         int width = _pictureWidth / _placeSizeWidth;
         int curWidth = width-1;
         int curHeight = 0;
-        for (int i = 0; i < _setTracktor.getCount(); i++)
+
-        {
+        for(var tracktor : _setTracktor.getTracktors()){
             // установка позиции
             // Влево - вниз
-            if (_setTracktor.get(i) != null){
+            if (tracktor!=null){
-                _setTracktor.get(i).setObject(
+                tracktor.setObject(
                         curWidth * _placeSizeWidth,
                         curHeight * _placeSizeHeight,
                         _pictureWidth,
                         _pictureHeight);
-
+                tracktor.drawningObject(g);
-                _setTracktor.get(i).drawningObject(g);
                 if (curWidth > 0)
                 {
                     curWidth--;

MapsCollection.java

@@ -0,0 +1,33 @@
+import java.util.HashMap;
+import java.util.Set;
+
+public class MapsCollection {
+    private final HashMap<String, MapWithSetTracktorGeneric<DrawningObjectExcavator, AbstractMap>> _mapsStorage;
+
+    private final int _pictureWidth;
+    private final int _pictureHeight;
+
+    public Set<String> getKeys() {
+        return _mapsStorage.keySet();
+    }
+
+    public MapsCollection(int pictureWidth, int pictureHeight) {
+        _mapsStorage = new HashMap<>();
+        _pictureWidth = pictureWidth;
+        _pictureHeight = pictureHeight;
+    }
+
+    public void addMap(String name, AbstractMap map) {
+        if (!_mapsStorage.containsKey(name)) {
+            _mapsStorage.put(name, new MapWithSetTracktorGeneric<>(_pictureWidth, _pictureHeight, map));
+        }
+    }
+
+    public void deleteMap(String name) {
+        _mapsStorage.remove(name);
+    }
+
+    public MapWithSetTracktorGeneric<DrawningObjectExcavator, AbstractMap> getMap(String name) {
+        return _mapsStorage.getOrDefault(name, null);
+    }
+}

Program.java

@@ -2,9 +2,7 @@ import javax.swing.*;
 
 public class Program {
     public static void main(String[] args){
-        FormGallery form = new FormGallery();
+        FormMapWithSetTracktor form = new FormMapWithSetTracktor();
-        form.setSize(500, 300);
-        form.setVisible(true);
         form.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
     }
 }

SetTracktorGeneric.java

@@ -1,12 +1,17 @@
+import java.util.ArrayList;
+import java.util.Objects;
+
 public class SetTracktorGeneric<T> {
-    private final Object[] _places;
+    private final ArrayList<T> _places;
+    private final int _maxCount;
 
     public int getCount() {
-        return _places.length;
+        return _places.size();
     }
 
     public SetTracktorGeneric(int count) {
-        _places = new Object[count];
+        _maxCount = count;
+        _places = new ArrayList<>(count);
     }
 
     public int insert(T tracktor) {
@@ -14,51 +19,34 @@ public class SetTracktorGeneric<T> {
     }
 
     public int insert(T tracktor, int position) {
-        if (position < 0 || position >= getCount()) {
+        if (position < 0 || position > getCount() || getCount() == _maxCount) {
             return -1;
         }
-
+        _places.add(position, tracktor);
-        if (_places[position] == null) {
-            _places[position] = tracktor;
         return position;
     }
 
-        int tmp = -1;
-
-        for(int i = position; i < getCount(); i++)
-        {
-            if (_places[i] == null)
-            {
-                tmp = i;
-                break;
-            }
-        }
-        if (tmp != -1)
-        {
-            System.arraycopy(_places, position, _places, position + 1, tmp - position);
-            _places[position] = tracktor;
-            return position;
-        }
-        return -1;
-    }
-
     @SuppressWarnings("unchecked")
     public T remove(int position) {
-        if (position < getCount() && position >= 0)
+        if (position < 0 || position >= getCount())
         {
-            T temp = (T) _places[position];
-            _places[position] = null;
-            return temp;
-        }
             return null;
         }
+        T result = _places.get(position);
+        _places.remove(position);
+        return result;
+    }
 
     @SuppressWarnings("unchecked")
     public T get(int position) {
         if (position < 0 || position >= getCount()) {
             return null;
         }
+        return _places.get(position);
+    }
 
-        return (T) _places[position];
+    public Iterable<T> getTracktors()
+    {
+        return _places;
     }
 }