package edu.stuy.goldfish; import java.util.Random; import java.awt.*; import java.awt.event.*; import java.awt.image.*; import javax.swing.*; import javax.swing.event.*; public class Render extends Canvas implements Runnable, MouseListener, MouseMotionListener, ActionListener { private static final long serialVersionUID = 1L; public static String title; public static int width; public static int height; public static int scale; public int fps_now; public boolean paused; public String rule; public boolean reset; private Grid _grid; private int[] _pixels; private BufferedImage _image; private long _lastTick; private String[] _rules; private JFrame _frame; private JButton pauseButton; private Random random = new Random(); public Render(int width, int height, Grid g, String[] rules) { addMouseListener(this); addMouseMotionListener(this); Render.title = "Goldfish: " + rules[0]; Render.width = width; Render.height = height; setScale(); paused = false; reset = false; rule = rules[0]; _grid = g; _image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB); _pixels = ((DataBufferInt) _image.getRaster().getDataBuffer()).getData(); _lastTick = 0; _rules = rules; fps_now = 15; setFrame(); } public Render(int width, int height, Grid g) { this(width, height, g, new String[0]); } public Render(int width, int height) { this(width, height, new Grid(width, height)); } public Render() { this(256, 256); } private void setScale() { if (height <= 128 || width <= 128) { Render.scale = 4; } else if (height <= 256 || width <= 256) { Render.scale = 2; } else { Render.scale = 1; } } private void setFrame() { JMenuBar menuBar = new JMenuBar(); JMenu menuAlgo = new JMenu("Algorithms"); for (String rule : _rules) { JMenuItem menuAlgoItem = new JMenuItem(rule); menuAlgo.add(menuAlgoItem); menuAlgoItem.addActionListener(this); } menuBar.add(menuAlgo); pauseButton = new JButton("Pause"); pauseButton.setActionCommand("pause"); pauseButton.setPreferredSize(new Dimension(90,0)); menuBar.add(pauseButton); pauseButton.addActionListener(this); JButton resetButton = new JButton("Reset"); resetButton.setActionCommand("reset"); menuBar.add(resetButton); resetButton.addActionListener(this); JButton randomButton = new JButton("Random"); randomButton.setActionCommand("random"); menuBar.add(randomButton); randomButton.addActionListener(this); JButton clearButton = new JButton("Clear"); clearButton.setActionCommand("clear"); menuBar.add(clearButton); clearButton.addActionListener(this); JSlider framesPerSecond = new JSlider(JSlider.HORIZONTAL, 0, 30, 15); ChangeListener fpschange = new ChangeListener() { @Override public void stateChanged(ChangeEvent event) { JSlider source = (JSlider) event.getSource(); if (!source.getValueIsAdjusting()) { int fps = (int) source.getValue(); if (fps == 0) { paused = true; pauseButton.setText("Unpause"); } else { paused = false; fps_now = fps; pauseButton.setText("Pause"); } } } }; framesPerSecond.addChangeListener(fpschange); framesPerSecond.setMajorTickSpacing(10); framesPerSecond.setMinorTickSpacing(1); framesPerSecond.setPaintTicks(true); framesPerSecond.setPaintLabels(true); framesPerSecond.setPreferredSize(new Dimension(100,40)); menuBar.add(framesPerSecond); setPreferredSize(new Dimension(width * scale, height * scale)); _frame = new JFrame(); _frame.setJMenuBar(menuBar); _frame.setResizable(false); _frame.setTitle(title); _frame.add(this); _frame.pack(); _frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); _frame.setLocationRelativeTo(null); _frame.setVisible(true); } private void update() { int state; int states = Goldfish.getMaxStates(rule); for (int i = 0; i < width; i++) { for (int j = 0; j < height; j++) { state = _grid.getPatch(i, j).getState(); if (_pixels[i + j * width] == state) { } else { draw(i, j, (int) ((state / ((double) states - 1)) * 0xffffff)); } } } } public void run() { BufferStrategy bs; Graphics g; bs = getBufferStrategy(); if (bs == null) { createBufferStrategy(1); return; } update(); g = bs.getDrawGraphics(); g.drawImage(_image, 0, 0, getWidth(), getHeight(), null); g.dispose(); bs.show(); } public void sleep() { long since = System.currentTimeMillis() - _lastTick; if (since < 1000 / fps_now) { try { Thread.sleep(1000 / fps_now - since); } catch (InterruptedException e) { return; } } _lastTick = System.currentTimeMillis(); } public void setGrid(Grid g) { _grid = g; } public void draw(int x, int y, int color) { _pixels[x + y * width] = color; } public void clear() { for (int i = 0; i < _grid.getHeight(); i++) { for (int j = 0; j < _grid.getWidth(); j++) { _grid.getPatch(i, j).setState(0); } } } public void randomize() { for (int i = 0; i < _grid.getHeight(); i++) { for (int j = 0; j < _grid.getWidth(); j++) { _grid.getPatch(i, j).setState(random.nextInt(Goldfish.getMaxStates(rule))); } } } @Override public void mouseDragged(MouseEvent e) { int states = Goldfish.getMaxStates(rule) - 1; if (e.getX() < 0 || e.getY() < 0 || e.getX() / scale > width || e.getY() / scale > height) return; _grid.getPatch(e.getX() / scale, e.getY() / scale).setState(states); e.consume(); } @Override public void mouseClicked(MouseEvent e) { int states = Goldfish.getMaxStates(rule) - 1; _grid.getPatch(e.getX() / scale, e.getY() / scale).setState(states); e.consume(); } @Override public void mouseEntered(MouseEvent e) { } @Override public void mouseExited(MouseEvent e) { } @Override public void mousePressed(MouseEvent e) { int states = Goldfish.getMaxStates(rule) - 1; _grid.getPatch(e.getX() / scale, e.getY() / scale).setState(states); e.consume(); } @Override public void mouseReleased(MouseEvent e) { } @Override public void mouseMoved(MouseEvent e) { } @Override public void actionPerformed(ActionEvent event) { if ("pause".equals(event.getActionCommand())) { if (paused) { paused = false; pauseButton.setText("Pause"); } else { paused = true; pauseButton.setText("Unpause"); } } else if ("reset".equals(event.getActionCommand())) { clear(); reset = true; } else if ("random".equals(event.getActionCommand())) { randomize(); } else if ("clear".equals(event.getActionCommand())) { clear(); } else { rule = event.getActionCommand(); title = "Goldfish: " + rule; _frame.setTitle(title); } } }