root / trunk / code / projects / colonet / ColonetGUI / BotGraph.java @ 13
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/*
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BotGraph.java
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Colony Project
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Gregory Tress
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*/
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import javax.swing.*; |
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import java.awt.*; |
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import java.awt.image.*; |
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import java.awt.event.*; |
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import java.net.*; |
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import java.io.*; |
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import java.util.Random; |
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public class BotGraph extends JApplet implements ActionListener, MouseListener, Runnable |
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{ |
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final int CANVAS_SIZE = 550; //don't make this too large, or the applet will be slow. |
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final int BUFFER = 50; |
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final int RADIUS = 30; |
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JTextField txtHost;
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JTextField txtPort;
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JButton btnConnect;
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JButton btnGraph;
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JButton btnRandomize;
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JLabel lblNumRobots;
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JLabel lblHasToken;
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JLabel lblTokenPasses;
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JLabel lblConnectionStatus;
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JTextArea txtInput; //sample matrix is entered in this area |
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JTextArea txtInfo;
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JPanel panel;
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JPanel panelConnect;
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JPanel panelControl;
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JPanel panelStats;
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GraphicsConfiguration gc;
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volatile BufferedImage image; |
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volatile Graphics2D canvas; |
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int cx, cy;
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Socket socket;
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OutputStreamWriter out; //TODO: add a BufferedWriter |
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DataListener datalistener; |
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Font botFont;
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Random random = new Random(); |
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volatile int tokenLoc; //the token is currently here |
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volatile int numBots; |
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volatile int selectedBot; //the user has selected this bot |
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volatile Rectangle[] botRect; //contains boundary shapes around bots for click detection |
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Thread drawThread;
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SelectionIndicator indicator; |
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Simulator simulator; |
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PacketMonitor packetMonitor; |
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public void init () |
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{ |
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// We should invoke and wait to avoid browser display difficulties
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Runnable r = new Runnable() { |
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public void run() { |
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createAndShowGUI(); |
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} |
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}; |
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try {
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SwingUtilities.invokeAndWait(r);
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} catch (InterruptedException e) { |
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//Not really sure why we would be in this situation
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System.out.println(e);
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} catch (java.lang.reflect.InvocationTargetException e) {
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//This should never happen. Seriously.
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System.out.println(e);
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} |
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} |
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public void destroy () |
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{ |
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drawThread.interrupt(); |
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indicator.interrupt(); |
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simulator.interrupt(); |
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packetMonitor.interrupt(); |
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} |
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private synchronized void createAndShowGUI () |
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{ |
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// init graphical elements
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panel = new JPanel(false); //set automatic double-buffering to false. we are doing it manually. |
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// Set up connection area
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txtHost = new JTextField("roboclub1.frc.ri.cmu.edu"); |
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txtPort = new JTextField("10123"); |
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btnConnect = new JButton("Connect"); |
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lblConnectionStatus = new JLabel("Status: Offline"); |
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panelConnect = new JPanel(); |
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panelConnect.setLayout(new GridLayout(2,3)); |
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panelConnect.add(new JLabel("Host")); |
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panelConnect.add(new JLabel("Port")); |
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panelConnect.add(lblConnectionStatus); |
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panelConnect.add(txtHost); |
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panelConnect.add(txtPort); |
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panelConnect.add(btnConnect); |
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panelConnect.setBorder(BorderFactory.createTitledBorder("Connection")); |
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// Set up elements in the east
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panelControl = new JPanel(); |
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panelControl.setLayout(new GridLayout(5,1)); |
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lblNumRobots = new JLabel(); |
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lblHasToken = new JLabel(); |
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lblTokenPasses = new JLabel(); |
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panelStats = new JPanel(); |
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panelStats.setLayout(new GridLayout(3,2)); |
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panelStats.add(new JLabel("Number of Bots ")); |
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panelStats.add(lblNumRobots); |
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panelStats.add(new JLabel("Token At ")); |
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panelStats.add(lblHasToken); |
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panelStats.add(new JLabel("Token Passes / sec ")); |
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panelStats.add(lblTokenPasses); |
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txtInput = new JTextArea("- 9 3 - 1\n- - - 5 -\n4 - - - 2\n- - - - -\n1 - - 3 -"); |
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txtInput.setBorder(BorderFactory.createTitledBorder("Input Matrix")); |
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txtInfo = new JTextArea(); |
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txtInfo.setBorder(BorderFactory.createTitledBorder("Info")); |
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txtInfo.setEditable(false);
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btnGraph = new JButton("Run"); |
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btnRandomize = new JButton("Randomize"); |
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panelControl.add(panelStats); |
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panelControl.add(txtInput); |
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panelControl.add(txtInfo); |
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panelControl.add(btnRandomize); |
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panelControl.add(btnGraph); |
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this.getContentPane().setLayout(new BorderLayout()); |
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this.getContentPane().add(panelConnect, BorderLayout.NORTH); |
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this.getContentPane().add(panelControl, BorderLayout.EAST); |
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this.getContentPane().add(panel, BorderLayout.CENTER); |
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this.setVisible(true); |
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btnGraph.addActionListener(this);
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btnRandomize.addActionListener(this);
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btnConnect.addActionListener(this);
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panel.addMouseListener(this);
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// Get the graphics configuration of the screen to create a buffer
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gc = GraphicsEnvironment.getLocalGraphicsEnvironment()
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.getDefaultScreenDevice().getDefaultConfiguration(); |
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image = gc.createCompatibleImage(CANVAS_SIZE,CANVAS_SIZE); |
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canvas = image.createGraphics(); |
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canvas.setStroke(new BasicStroke(2)); //set pen width |
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// Calculate center of canvas
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cx = image.getWidth() / 2;
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cy = image.getHeight() / 2;
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botFont = new Font("Arial", Font.PLAIN, 30); |
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tokenLoc = 0;
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numBots = 0;
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selectedBot = 0;
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// Set up dependent threads
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indicator = new SelectionIndicator(canvas);
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indicator.setRadius(RADIUS+3, 15); //a tad more than the bot radius |
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simulator = new Simulator();
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packetMonitor = new PacketMonitor();
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datalistener = new DataListener();
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} |
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public synchronized void paint (Graphics g) |
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{ |
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/* First, redraw the graphical components in the applet.
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This paint method overrides the built-in paint of the
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JApplet, and we don't want to deal with redrawing the
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components manually. Fuck that shit. */
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super.paint(g);
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// Place the buffered image on the screen, inside the panel
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panel.getGraphics().drawImage(image, 0, 0, Color.WHITE, this); |
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} |
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public synchronized void update (Graphics g) |
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{ |
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paint(g); |
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} |
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public void actionPerformed (ActionEvent e) |
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{ |
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Object source = e.getSource();
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if (source == btnGraph)
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{ |
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btnGraph.setEnabled(false);
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lblConnectionStatus.setText("Status: Simulation mode => running");
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//Start dependent threads
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drawThread = new Thread(this, "drawThread"); |
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drawThread.start(); |
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indicator.start(); |
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simulator.start(); |
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packetMonitor.start(); |
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} |
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else if (source == btnConnect) |
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{ |
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doSocket(); |
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} |
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else if (source == btnRandomize) |
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{ |
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randomize(); |
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} |
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} |
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private void randomize () |
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{ |
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Random r = new Random(); |
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StringBuilder s = new StringBuilder(); |
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int count = r.nextInt(8) + 1; |
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for (int i = 0; i < count; i++) |
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{ |
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for (int j = 0; j < count; j++) |
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{ |
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if (r.nextBoolean())
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s.append("" + (r.nextInt(16) + 1)); |
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else
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s.append("-");
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if (j != count-1) |
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s.append(" ");
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} |
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if (i != count-1) s.append("\n"); |
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} |
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txtInput.setText(s.toString()); |
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} |
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private void doSocket () |
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{ |
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//make sure hostname and port are valid
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if (txtHost.getText().equals("") || txtPort.getText().equals("")) { |
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err("Please enter a hostname and port.");
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return;
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} |
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int port = 0; |
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try {
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port = Integer.parseInt(txtPort.getText());
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} catch (Exception e) { |
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err("Invalid port");
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return;
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} |
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//make sure we aren't already connected. if so, disconnect first.
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if (socket != null && socket.isConnected()) { |
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try {
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out.close(); |
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socket.close(); |
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} catch (IOException e) {} |
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} |
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try {
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socket = new Socket(txtHost.getText(), port); |
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} catch (UnknownHostException e) { |
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err("Unknown Host Exception");
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return;
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} catch (IOException e) { |
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err("IO Exception\n\n" + e);
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return;
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} catch (java.security.AccessControlException e) {
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err("Permission denied by java.security.AccessControlException.\n\nYou may only connect to the server from which this applet was loaded.");
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return;
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} |
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if (socket == null || !socket.isConnected()) { |
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err("Connection failed. Try connecting again.");
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return;
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} |
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msg("Connected to " + txtHost.getText() + " on port " + port + "\n"); |
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lblConnectionStatus.setText("Status: ONLINE");
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try {
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out = new OutputStreamWriter(socket.getOutputStream()); |
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} catch (IOException e) { |
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warn("Could not get OutputStream from socket connection.");
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} |
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} |
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public void drawRobot (int id, int x, int y) |
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{ |
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//save the bot in memory, so we can tell if we click on it later
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botRect[id] = new Rectangle(x-RADIUS, y-RADIUS, 2*RADIUS, 2*RADIUS); |
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//draw the bot on the canvas
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canvas.setColor(Color.BLACK);
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canvas.drawOval(x-RADIUS, y-RADIUS, RADIUS*2, RADIUS*2); |
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//draw the label
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canvas.setFont(botFont); |
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canvas.drawString("" + id, x-10, y+10); |
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} |
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public void drawConnection (int start, int end, int radius, Color color) |
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{ |
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final int ARROW_LENGTH = 18; |
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double angle = 2.0 * Math.PI / numBots; |
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int startx, starty, endx, endy;
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startx = cx - (int)(radius * Math.cos(start * angle)); |
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starty = cy - (int)(radius * Math.sin(start * angle)); |
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endx = cx - (int)(radius * Math.cos(end * angle)); |
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endy = cy - (int)(radius * Math.sin(end * angle)); |
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canvas.setColor(color); |
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canvas.drawLine(startx, starty, endx, endy); |
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//create arrow
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if (color.equals(Color.BLACK)) return; |
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int big_dy = starty - endy;
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int big_dx = endx - startx;
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double theta = 0; |
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if (big_dx == 0 && starty > endy) //pointing up |
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theta = Math.PI/2; |
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else if (big_dx == 0 && starty < endy) //pointing down |
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theta = 3*Math.PI/2; |
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else if (big_dy == 0 && startx > endx) //pointing left |
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theta = Math.PI;
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else if (big_dy == 0 && startx < endx) //pointing right |
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theta = 0;
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else
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theta = Math.atan(1.0 * big_dy / big_dx); |
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//create ploygon
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Polygon poly = new Polygon(); |
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int dx_arrow = Math.abs((int)(ARROW_LENGTH * Math.cos(theta))); |
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int dy_arrow = Math.abs((int)(ARROW_LENGTH * Math.sin(theta))); |
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int dy_half = (int)(ARROW_LENGTH/2 * Math.cos(theta)); |
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int dx_half = (int)(ARROW_LENGTH/2 * Math.sin(theta)); |
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int rx = (big_dx > 0) ? endx - dx_arrow : endx + dx_arrow; |
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int ry = (big_dy > 0) ? endy + dy_arrow : endy - dy_arrow; |
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//System.out.println("" + start + "->" + end + " : dx=" + big_dx + ",dy=" + big_dy + ",dy_arrow=" + dy_arrow + ",dx_arrow=" + dx_arrow + ",theta=" + theta + ",endx=" + endx + ",endy=" + endy + ",rx=" + rx + ",ry=" + ry);
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poly.addPoint(endx, endy); |
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poly.addPoint(rx - dx_half, ry - dy_half); |
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poly.addPoint(rx + dx_half, ry + dy_half); |
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canvas.fillPolygon(poly); |
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} |
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public void run () |
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{ |
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while (true) |
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{ |
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step(); |
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repaint(); |
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try { Thread.sleep(90); } |
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catch (InterruptedException e) { return; } |
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} |
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} |
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public void step () |
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{ |
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final int DIAMETER = image.getWidth() - 2*BUFFER; |
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final int BIGRADIUS = DIAMETER / 2; |
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final int TOKENRADIUS = 40; |
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boolean valid;
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// clear image
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canvas.setColor(Color.WHITE);
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canvas.fillRect(0, 0, image.getWidth(), image.getHeight()); |
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// parse the matrix, to see what robots exist
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String [] rows = txtInput.getText().split("\n"); |
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numBots = rows.length; |
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String [][] entries = new String[numBots][numBots]; |
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valid = true;
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for (int i = 0; i < numBots; i++) |
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{ |
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entries[i] = rows[i].split(" ");
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if (entries[i].length != rows.length) valid = false; |
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} |
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if (valid)
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{ |
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lblNumRobots.setText("" + numBots);
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lblHasToken.setText("" + tokenLoc);
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this.showStatus("Matrix OK"); |
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// draw outer ring
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//canvas.setColor(Color.GREEN);
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//canvas.drawOval(BUFFER, BUFFER, DIAMETER, DIAMETER);
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// draw robots and find which one is seleced
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double angle = 2.0 * Math.PI / numBots; |
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canvas.setColor(Color.BLACK);
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botRect = new Rectangle[numBots]; |
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int x, y;
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if (selectedBot >= numBots) selectedBot = 0; |
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for (int i = 0; i < numBots; i++) |
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{ |
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x = cx - (int)(BIGRADIUS * Math.cos(i * angle)); |
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y = cy - (int)(BIGRADIUS * Math.sin(i * angle)); |
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drawRobot(i, x, y); |
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if (i == selectedBot) indicator.setCenter(x, y);
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} |
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// draw token marker
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int tokenx, tokeny;
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int tokenNum = tokenLoc;
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tokenx = cx - (int)(BIGRADIUS * Math.cos(tokenNum * angle)); |
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tokeny = cy - (int)(BIGRADIUS * Math.sin(tokenNum * angle)); |
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canvas.setColor(Color.RED);
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canvas.drawOval(tokenx-TOKENRADIUS, tokeny-TOKENRADIUS, 2*TOKENRADIUS, 2*TOKENRADIUS); |
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// create an inner circle along which the connections are made.
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// let the diameter of this circle be 2*RADIUS less than the outerDiameter.
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// see what connections exist
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for (int row = 0; row < numBots; row++) |
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{ |
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for(int col = 0; col < numBots; col++) |
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{ |
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if (! entries[row][col].equals("-") && entries[col][row].equals("-") && row != col) //one-way |
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{ |
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//drawConnection(row, col, BIGRADIUS-RADIUS, Color.GRAY);
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drawConnection(row, col, BIGRADIUS-RADIUS, new Color(200,200,200)); |
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} |
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else if (! entries[row][col].equals("-") && ! entries[col][row].equals("-") && row != col) //two-way |
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{ |
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drawConnection(row, col, BIGRADIUS-RADIUS, Color.BLACK);
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} |
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} |
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} |
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// draw the selection indicator
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indicator.draw(); |
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txtInfo.setText("Bot " + selectedBot + " is selected.\n"); |
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txtInfo.append("Battery: ???\n");
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txtInfo.append("Packet statistics: ???");
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} |
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else // if matrix is not valid |
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{ |
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this.showStatus("Error: Invalid matrix"); |
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} |
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} |
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/* At this point, moveToken is only called by the simulator.
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* In the future, it can be rewritten to account for non-standard
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* token passing or deleted if the information can be retrieved
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* directly from the Colonet server instead.
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*/
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public void moveToken () |
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{ |
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try { tokenLoc = (tokenLoc+1)%numBots; } |
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catch (ArithmeticException e) { } // in case numRobots is zero |
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packetMonitor.addTokenPass(); |
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} |
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|
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//
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// MouseEvent methods
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//
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public void mouseExited(MouseEvent e) {} |
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public void mouseEntered(MouseEvent e) {} |
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public void mouseReleased(MouseEvent e) {} |
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public void mouseClicked(MouseEvent e) {} |
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public void mousePressed(MouseEvent e) |
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{ |
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try {
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for (int i = 0; i < numBots; i++) |
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{ |
467 |
if (botRect[i].contains(e.getPoint()))
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selectedBot = i; |
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} |
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} catch (Exception ex) { |
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System.out.println(e);
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} |
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} |
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private void msg (String text) {JOptionPane.showMessageDialog(null, text, "Colonet", JOptionPane.INFORMATION_MESSAGE);} |
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private void warn (String text) {JOptionPane.showMessageDialog(null, text, "Colonet", JOptionPane.WARNING_MESSAGE);} |
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private void err (String text) {JOptionPane.showMessageDialog(null, text, "Colonet", JOptionPane.ERROR_MESSAGE);} |
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/*
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* SelectionIndicator thread.
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* Graphical representation of the selection marker
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*
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* step() and draw() are synchronized methods. step() is private and
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* used to update the position of the crosshairs. draw() is called
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* externally and should only run if all calculations in step() have
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* been completed.
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*/
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private class SelectionIndicator extends Thread |
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{ |
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|
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final int INDICATOR_DELAY = 100; |
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final double DTHETA = 0.3; //larger values make the marker rotate faster |
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Graphics2D g; //canvas to draw on |
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boolean running;
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|
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int sx, sy; //center |
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int r, dr; //radius and width of marker |
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double theta; //current angle |
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|
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volatile Polygon poly1, poly2, poly3, poly4; |
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int px1, py1;
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int rx1, ry1;
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int px2, py2;
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int rx2, ry2;
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int px3, py3;
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int rx3, ry3;
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int px4, py4;
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int rx4, ry4;
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|
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int steps;
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|
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public SelectionIndicator (Graphics2D g) |
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{ |
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super("SelectionIndicator"); |
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this.g = g;
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running = false;
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steps = 0;
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|
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theta = 0;
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rx1 = 0; ry1 = 0; |
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px1 = 0; py1 = 0; |
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rx2 = 0; ry2 = 0; |
526 |
px2 = 0; py2 = 0; |
527 |
rx3 = 0; ry3 = 0; |
528 |
px3 = 0; py3 = 0; |
529 |
rx4 = 0; ry4 = 0; |
530 |
px4 = 0; py4 = 0; |
531 |
} |
532 |
|
533 |
public synchronized void setCenter (int sx, int sy) |
534 |
{ |
535 |
if (sx == this.sx && sy == this.sy) return; |
536 |
this.sx = sx;
|
537 |
this.sy = sy;
|
538 |
steps = 0;
|
539 |
} |
540 |
|
541 |
public synchronized void setRadius (int r, int dr) |
542 |
{ |
543 |
this.r = r;
|
544 |
this.dr = dr;
|
545 |
steps = 0;
|
546 |
} |
547 |
|
548 |
public void run () |
549 |
{ |
550 |
running = true;
|
551 |
while (running)
|
552 |
{ |
553 |
step(); |
554 |
try { Thread.sleep(INDICATOR_DELAY); } |
555 |
catch (InterruptedException e) { running = false; return; } |
556 |
} |
557 |
} |
558 |
|
559 |
private synchronized void step () |
560 |
{ |
561 |
Polygon poly1_new = new Polygon(); |
562 |
Polygon poly2_new = new Polygon(); |
563 |
Polygon poly3_new = new Polygon(); |
564 |
Polygon poly4_new = new Polygon(); |
565 |
|
566 |
//the step
|
567 |
theta = (theta + DTHETA/Math.PI) % (Math.PI); |
568 |
|
569 |
//the calculation
|
570 |
//let p be the point of the pointy thing toward the center
|
571 |
//let r be the point at the opposite side
|
572 |
|
573 |
//recalculate radius, if it will look cool, lolz
|
574 |
int newr = r;
|
575 |
if (steps < 100) newr = (int)( r + 200/(steps+1) ); |
576 |
|
577 |
//precompute values for dx and dy
|
578 |
int dx_inner = (int)(newr * Math.cos(theta)); |
579 |
int dy_inner = (int)(newr * Math.sin(theta)); |
580 |
int dx_outer = (int)((newr+dr) * Math.cos(theta)); |
581 |
int dy_outer = (int)((newr+dr) * Math.sin(theta)); |
582 |
|
583 |
//calculate polygon constants
|
584 |
int dy_poly = (int)(dr/2 * Math.cos(theta)); |
585 |
int dx_poly = (int)(dr/2 * Math.sin(theta)); |
586 |
|
587 |
//determine critical points
|
588 |
px1 = sx + dx_inner; |
589 |
py1 = sy - dy_inner; |
590 |
rx1 = sx + dx_outer; |
591 |
ry1 = sy - dy_outer; |
592 |
px2 = sx - dx_inner; |
593 |
py2 = sy + dy_inner; |
594 |
rx2 = sx - dx_outer; |
595 |
ry2 = sy + dy_outer; |
596 |
px3 = sx - dy_inner; |
597 |
py3 = sy - dx_inner; |
598 |
rx3 = sx - dy_outer; |
599 |
ry3 = sy - dx_outer; |
600 |
px4 = sx + dy_inner; |
601 |
py4 = sy + dx_inner; |
602 |
rx4 = sx + dy_outer; |
603 |
ry4 = sy + dx_outer; |
604 |
|
605 |
//create polygons
|
606 |
poly1_new.addPoint(px1, py1); |
607 |
poly1_new.addPoint(rx1+dx_poly, ry1+dy_poly); |
608 |
poly1_new.addPoint(rx1-dx_poly, ry1-dy_poly); |
609 |
poly2_new.addPoint(px2, py2); |
610 |
poly2_new.addPoint(rx2+dx_poly, ry2+dy_poly); |
611 |
poly2_new.addPoint(rx2-dx_poly, ry2-dy_poly); |
612 |
poly3_new.addPoint(px3, py3); |
613 |
poly3_new.addPoint(rx3-dy_poly, ry3+dx_poly); |
614 |
poly3_new.addPoint(rx3+dy_poly, ry3-dx_poly); |
615 |
poly4_new.addPoint(px4, py4); |
616 |
poly4_new.addPoint(rx4-dy_poly, ry4+dx_poly); |
617 |
poly4_new.addPoint(rx4+dy_poly, ry4-dx_poly); |
618 |
|
619 |
//reassign updated polygons
|
620 |
poly1 = poly1_new; |
621 |
poly2 = poly2_new; |
622 |
poly3 = poly3_new; |
623 |
poly4 = poly4_new; |
624 |
|
625 |
if (steps < 300) steps++; |
626 |
} |
627 |
|
628 |
public synchronized void draw () |
629 |
{ |
630 |
if (!running) return; |
631 |
g.setColor(Color.GRAY);
|
632 |
//draw polygons
|
633 |
g.fillPolygon(poly1); |
634 |
g.fillPolygon(poly2); |
635 |
g.fillPolygon(poly3); |
636 |
g.fillPolygon(poly4); |
637 |
} |
638 |
|
639 |
|
640 |
} |
641 |
|
642 |
/*
|
643 |
* Simulator thread.
|
644 |
*
|
645 |
*/
|
646 |
private class Simulator extends Thread |
647 |
{ |
648 |
final int SIMULATOR_DELAY = 300; |
649 |
|
650 |
boolean running;
|
651 |
|
652 |
public Simulator ()
|
653 |
{ |
654 |
super("Simulator"); |
655 |
running = false;
|
656 |
} |
657 |
|
658 |
public void run () |
659 |
{ |
660 |
running = true;
|
661 |
while (running)
|
662 |
{ |
663 |
step(); |
664 |
try { Thread.sleep(SIMULATOR_DELAY); } |
665 |
catch (InterruptedException e) { running = false; return; } |
666 |
} |
667 |
} |
668 |
|
669 |
private void step () |
670 |
{ |
671 |
// simulate passing the token
|
672 |
moveToken(); |
673 |
|
674 |
} |
675 |
|
676 |
} |
677 |
|
678 |
/*
|
679 |
* PacketMonitor thread.
|
680 |
*
|
681 |
* Currently, this counts the rate of token passes but will eventually
|
682 |
* be modified to keep more important statistics.
|
683 |
*/
|
684 |
private class PacketMonitor extends Thread |
685 |
{ |
686 |
final int PACKETMONITOR_DELAY = 1000; |
687 |
|
688 |
boolean running;
|
689 |
int tokenPasses;
|
690 |
|
691 |
public PacketMonitor ()
|
692 |
{ |
693 |
super("PacketMonitor"); |
694 |
running = false;
|
695 |
tokenPasses = 0;
|
696 |
} |
697 |
|
698 |
public void run () |
699 |
{ |
700 |
running = true;
|
701 |
while (running)
|
702 |
{ |
703 |
displayTokenPasses(); |
704 |
try { Thread.sleep(PACKETMONITOR_DELAY); } |
705 |
catch (InterruptedException e) { running = false; return; } |
706 |
} |
707 |
} |
708 |
|
709 |
public synchronized void addTokenPass () |
710 |
{ |
711 |
tokenPasses++; |
712 |
} |
713 |
|
714 |
public synchronized void displayTokenPasses () |
715 |
{ |
716 |
lblTokenPasses.setText("" + tokenPasses);
|
717 |
tokenPasses = 0;
|
718 |
} |
719 |
|
720 |
} |
721 |
|
722 |
/*
|
723 |
* DataListener thread.
|
724 |
*
|
725 |
*/
|
726 |
class DataListener extends Thread |
727 |
{ |
728 |
final int DATALISTENER_DELAY = 1000; |
729 |
BufferedReader reader;
|
730 |
|
731 |
public DataListener ()
|
732 |
{ |
733 |
super("Colonet DataListener"); |
734 |
} |
735 |
|
736 |
public void run () |
737 |
{ |
738 |
String line;
|
739 |
try {
|
740 |
reader = new BufferedReader(new InputStreamReader(socket.getInputStream())); |
741 |
} catch (IOException e) { |
742 |
warn("Could not open input stream from socket.\nTry relooding the applet.");
|
743 |
} |
744 |
while (true) |
745 |
{ |
746 |
try {
|
747 |
if (reader.ready())
|
748 |
{ |
749 |
line = reader.readLine(); |
750 |
if (line != null) |
751 |
{ |
752 |
msg("Incoming data: [" + line + "]"); |
753 |
} |
754 |
} |
755 |
Thread.sleep(DATALISTENER_DELAY);
|
756 |
} catch (InterruptedException e) { |
757 |
return;
|
758 |
} catch (IOException e) { |
759 |
warn("IOException while reading incoming data.");
|
760 |
} |
761 |
} |
762 |
} |
763 |
|
764 |
} |
765 |
|
766 |
|
767 |
/*
|
768 |
* Matrix class
|
769 |
* holds current sensor matrix data
|
770 |
*/
|
771 |
|
772 |
/*
|
773 |
private class Matrix
|
774 |
{
|
775 |
int [][] grid;
|
776 |
|
777 |
public Matrix ()
|
778 |
{
|
779 |
grid = new int[1][1];
|
780 |
}
|
781 |
|
782 |
public String toString ()
|
783 |
{
|
784 |
StringBuilder s = new StringBuilder();
|
785 |
for (int j = 0; j < grid.length; j++)
|
786 |
{
|
787 |
for (int i = 0; i < grid[0].length; i++)
|
788 |
s.append(grid[i][j]);
|
789 |
if (j < grid.length-1) s.append("\n");
|
790 |
}
|
791 |
return s.toString();
|
792 |
}
|
793 |
|
794 |
}
|
795 |
*/
|
796 |
|
797 |
|
798 |
|
799 |
} |
800 |
|