132 lines
3.6 KiB
Java
132 lines
3.6 KiB
Java
import java.awt.*;
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import java.awt.event.*;
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import javax.swing.*;
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public class Honeycombs extends JFrame {
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public static void main(String[] args) {
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SwingUtilities.invokeLater(() -> {
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JFrame f = new Honeycombs();
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f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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f.setVisible(true);
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});
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}
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public Honeycombs() {
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add(new HoneycombsPanel(), BorderLayout.CENTER);
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setTitle("Honeycombs");
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setResizable(false);
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pack();
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setLocationRelativeTo(null);
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}
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}
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class HoneycombsPanel extends JPanel {
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Hexagon[] comb;
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public HoneycombsPanel() {
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setPreferredSize(new Dimension(600, 500));
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setBackground(Color.white);
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setFocusable(true);
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addMouseListener(new MouseAdapter() {
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@Override
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public void mousePressed(MouseEvent e) {
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for (Hexagon hex : comb)
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if (hex.contains(e.getX(), e.getY())) {
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hex.setSelected();
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break;
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}
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repaint();
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}
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});
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addKeyListener(new KeyAdapter() {
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@Override
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public void keyPressed(KeyEvent e) {
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for (Hexagon hex : comb)
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if (hex.letter == Character.toUpperCase(e.getKeyChar())) {
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hex.setSelected();
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break;
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}
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repaint();
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}
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});
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char[] letters = "LRDGITPFBVOKANUYCESM".toCharArray();
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comb = new Hexagon[20];
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int x1 = 150, y1 = 100, x2 = 225, y2 = 143, w = 150, h = 87;
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for (int i = 0; i < comb.length; i++) {
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int x, y;
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if (i < 12) {
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x = x1 + (i % 3) * w;
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y = y1 + (i / 3) * h;
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} else {
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x = x2 + (i % 2) * w;
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y = y2 + ((i - 12) / 2) * h;
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}
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comb[i] = new Hexagon(x, y, w / 3, letters[i]);
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}
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requestFocus();
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}
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@Override
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public void paintComponent(Graphics gg) {
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super.paintComponent(gg);
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Graphics2D g = (Graphics2D) gg;
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g.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
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RenderingHints.VALUE_ANTIALIAS_ON);
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g.setFont(new Font("SansSerif", Font.BOLD, 30));
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g.setStroke(new BasicStroke(3));
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for (Hexagon hex : comb)
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hex.draw(g);
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}
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}
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class Hexagon extends Polygon {
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final Color baseColor = Color.yellow;
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final Color selectedColor = Color.magenta;
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final char letter;
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private boolean hasBeenSelected;
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Hexagon(int x, int y, int halfWidth, char c) {
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letter = c;
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for (int i = 0; i < 6; i++)
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addPoint((int) (x + halfWidth * Math.cos(i * Math.PI / 3)),
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(int) (y + halfWidth * Math.sin(i * Math.PI / 3)));
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getBounds();
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}
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void setSelected() {
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hasBeenSelected = true;
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}
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void draw(Graphics2D g) {
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g.setColor(hasBeenSelected ? selectedColor : baseColor);
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g.fillPolygon(this);
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g.setColor(Color.black);
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g.drawPolygon(this);
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g.setColor(hasBeenSelected ? Color.black : Color.red);
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drawCenteredString(g, String.valueOf(letter));
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}
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void drawCenteredString(Graphics2D g, String s) {
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FontMetrics fm = g.getFontMetrics();
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int asc = fm.getAscent();
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int dec = fm.getDescent();
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int x = bounds.x + (bounds.width - fm.stringWidth(s)) / 2;
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int y = bounds.y + (asc + (bounds.height - (asc + dec)) / 2);
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g.drawString(s, x, y);
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}
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}
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