PIbd-21_Rodionov_I.A._Monorail_Hard/src/projectMonorail/PictureBox.java

package projectMonorail;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionListener;
import java.util.Random;

public class PictureBox extends JPanel {

    private DrawingMonorail drawingMonorail;

    private JButton buttonLeft;

    private JButton buttonUp;

    private JButton buttonRight;

    private JButton buttonDown;

    private JButton buttonCreateMonorail;

    private JPanel buttonsPanel;

    private JPanel buttonsMovePanel;

    private JPanel paddingPanel;

    public PictureBox() {
        setLayout(new BorderLayout());

        buttonsPanel = new JPanel();
        buttonsPanel.setLayout(new BoxLayout(buttonsPanel, BoxLayout.X_AXIS));
        buttonsPanel.setOpaque(false);

        buttonCreateMonorail = new JButton("Create");
        buttonCreateMonorail.setFocusable(false);
        buttonCreateMonorail.setFont(new Font("Segoe UI", Font.PLAIN, 12));
        buttonCreateMonorail.setBackground(Color.LIGHT_GRAY);
        buttonCreateMonorail.setPreferredSize(new Dimension(75, 23));

        buttonCreateMonorail.addActionListener (e -> {
            Random random = new Random();
            drawingMonorail = new DrawingMonorail();
            drawingMonorail.Init(random.nextInt(200, 300),
                    random.nextInt(1000, 3000),
                    new Color(random.nextInt(0, 256), random.nextInt(0, 256),
                            random.nextInt(0, 256)),
                    new Color(random.nextInt(0, 256), random.nextInt(0, 256),
                            random.nextInt(0, 256)),
                    random.nextBoolean(), random.nextBoolean(), this.getWidth(), this.getHeight(), random.nextInt(2, 5));
            drawingMonorail.SetPosition(random.nextInt(10, 100), random.nextInt(10, 100));
            repaint();
        });

        ActionListener buttonMoveListener = e -> {
            if (drawingMonorail == null)
            {
                return;
            }

            String buttonName = ((JButton) e.getSource()).getName();

            switch (buttonName) {
                case ("buttonUp"):
                    drawingMonorail.MoveTransport(DirectionType.Up);
                    break;
                case ("buttonDown"):
                    drawingMonorail.MoveTransport(DirectionType.Down);
                    break;
                case ("buttonLeft"):
                    drawingMonorail.MoveTransport(DirectionType.Left);
                    break;
                case ("buttonRight"):
                    drawingMonorail.MoveTransport(DirectionType.Right);
                    break;
            }
            repaint();
        };

        buttonLeft = new JButton();
        buttonLeft.setName("buttonLeft");
        buttonLeft.setFocusable(false);
        buttonLeft.setPreferredSize(new Dimension(30, 30));
        buttonLeft.setIcon(new ImageIcon("Resources/arrowLeft.png"));
        buttonLeft.addActionListener(buttonMoveListener);

        buttonRight = new JButton();
        buttonRight.setName("buttonRight");
        buttonRight.setFocusable(false);
        buttonRight.setPreferredSize(new Dimension(30, 30));
        buttonRight.setIcon(new ImageIcon("Resources/arrowRight.png"));
        buttonRight.addActionListener(buttonMoveListener);

        buttonDown = new JButton();
        buttonDown.setName("buttonDown");
        buttonDown.setFocusable(false);
        buttonDown.setPreferredSize(new Dimension(30, 30));
        buttonDown.setIcon(new ImageIcon("Resources/arrowDown.png"));
        buttonDown.addActionListener(buttonMoveListener);

        buttonUp = new JButton();
        buttonUp.setName("buttonUp");
        buttonUp.setFocusable(false);
        buttonUp.setPreferredSize(new Dimension(30, 30));
        buttonUp.setIcon(new ImageIcon("Resources/arrowUp.png"));
        buttonUp.addActionListener(buttonMoveListener);

        buttonsMovePanel = new JPanel();
        buttonsMovePanel.setLayout(new GridBagLayout());
        buttonsMovePanel.setOpaque(false);

        GridBagConstraints constrains = new GridBagConstraints();
        constrains.insets = new Insets(5,5,5,5);
        constrains.gridx = 0;
        constrains.gridy = 0;

        buttonsMovePanel.add(Box.createHorizontalStrut(30), constrains);

        constrains.gridx = 1;
        constrains.gridy = 0;

        buttonsMovePanel.add(buttonUp, constrains);

        constrains.gridx = 2;
        constrains.gridy = 0;

        buttonsMovePanel.add(Box.createHorizontalStrut(30), constrains);

        constrains.gridx = 0;
        constrains.gridy = 1;

        buttonsMovePanel.add(buttonLeft, constrains);

        constrains.gridx = 1;
        constrains.gridy = 1;

        buttonsMovePanel.add(buttonDown, constrains);

        constrains.gridx = 2;
        constrains.gridy = 1;

        buttonsMovePanel.add(buttonRight, constrains);

        paddingPanel = new JPanel();
        paddingPanel.setLayout(new BoxLayout(paddingPanel, BoxLayout.Y_AXIS));
        paddingPanel.setOpaque(false);

        paddingPanel.add(buttonsMovePanel);
        paddingPanel.add(Box.createVerticalStrut(15));

        buttonsPanel.add(Box.createHorizontalStrut(20));
        buttonsPanel.add(buttonCreateMonorail);
        buttonsPanel.add(Box.createHorizontalStrut(650));
        buttonsPanel.add(paddingPanel);

        add(buttonsPanel, BorderLayout.SOUTH);
        setPreferredSize(new Dimension(900, 500));
    }

    @Override
    protected void paintComponent(Graphics g) {
        if (drawingMonorail == null) {
            return;
        }

        super.paintComponent(g);
        Graphics2D g2d = (Graphics2D) g;
        drawingMonorail.DrawTransport(g2d);
    }
}