УП 6.2

src_Main.java

public class Main {
    public static void main(String[] args) {
        new MyFrame();
    }
}

src_MyFrame.java

import com.sun.j3d.utils.universe.SimpleUniverse;

import javax.media.j3d.*;
import javax.swing.*;
import javax.vecmath.Color3f;
import javax.vecmath.Point3d;
import javax.vecmath.Point3f;
import java.awt.*;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionAdapter;
import java.awt.geom.Line2D;

public class MyFrame extends JFrame implements KeyListener {
    private Color3f textColor;
    private Color3f backgroundColor;
    private float lightZPos;
    private Text3D text;
    private Color3f lightColor;
    private PointLight light;

    public MyFrame() {
        super("Word Art Mini");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        setLayout(new BorderLayout());
        GraphicsConfiguration config = SimpleUniverse.getPreferredConfiguration();
        textColor = new Color3f(new Color(0x323232));
        backgroundColor = new Color3f(new Color(0xA8A8A8));
        lightZPos = 15.0f;
        Canvas3D c = new Canvas3D(config);
        add(c, BorderLayout.CENTER);
        c.setDoubleBufferEnable(true);
        SimpleUniverse u = new SimpleUniverse(c);
        BranchGroup scene = createScene();
        u.getViewingPlatform().setNominalViewingTransform();
        u.addBranchGraph(scene);

        c.addMouseMotionListener(new MouseMotionAdapter() {
            @Override
            public void mouseMoved(MouseEvent e) {
                light.setPosition(25.0f - e.getX() / 10.0f, 25.0f - e.getY() / 10.0f, lightZPos);
            }
        });
        c.addKeyListener(this);
        try {
            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException e) {
        }
        setIconImage(new ImageIcon("src\\icon.png").getImage());
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        pack();
        setSize(900, 600);
        setLocationRelativeTo(null);
        setVisible(true);
    }

    public BranchGroup createScene() {
        lightColor = new Color3f(new Color(0x150081));

        BranchGroup objRoot = new BranchGroup();
        TransformGroup objScale = new TransformGroup();
        Transform3D t3d = new Transform3D();
        t3d.setScale(0.3);
        objScale.setTransform(t3d);
        objRoot.addChild(objScale);

        BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100.0);
        Background background = new Background(backgroundColor);
        background.setApplicationBounds(bounds);
        objScale.addChild(background);

        Material material = new Material(textColor, textColor, textColor, new Color3f(Color.WHITE), 1.0f);
        Appearance appearance = new Appearance();
        material.setLightingEnable(true);
        appearance.setMaterial(material);
        Font font = new Font("Adobe Gothic Std B", Font.PLAIN, 1);
        Font3D f3d = new Font3D(font, 0.001, new FontExtrusion(new Line2D.Double(0, 0, 1, 1)));

        text = new Text3D(f3d, "Java 3D", new Point3f(0.0f, -0.5f, 0.0f));
        text.setAlignment(Text3D.ALIGN_CENTER);
        text.setCapability(Text3D.ALLOW_STRING_WRITE);
        text.setCapability(Text3D.ALLOW_STRING_READ);
        Shape3D s3D2 = new Shape3D(text, appearance);
        objScale.addChild(s3D2);


        light = new PointLight();
        light.setEnable(true);
        light.setColor(lightColor);
        light.setPosition(10.0f, 3.0f, lightZPos);
        light.setCapability(Light.ALLOW_COLOR_WRITE);
        light.setCapability(PointLight.ALLOW_POSITION_WRITE);
        light.setInfluencingBounds(bounds);
        objScale.addChild(light);

        objRoot.compile();

        return objRoot;
    }

    @Override
    public void keyTyped(KeyEvent e) {
    }

    @Override
    public void keyPressed(KeyEvent e) {
        if (e.getExtendedKeyCode() == KeyEvent.VK_BACK_SPACE) {
            String newText = text.getString().substring(0, text.getString().length() - 1);
            text.setString(newText);
        } else if (e.getExtendedKeyCode() == KeyEvent.VK_ENTER) {
            Color color = JColorChooser.showDialog(null, "Choose color", Color.black);
            if (color != null) {
                lightColor.set(color);
            }
            light.setColor(lightColor);
        } else {
            char newText = e.getKeyChar();
            if (text.getFont3D().getFont().canDisplay(newText))
                text.setString(text.getString() + newText);
        }
    }

    @Override
    public void keyReleased(KeyEvent e) {
    }
}