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POJava last added button allows agent.move, rest dont
 

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  1. POJava last added button allows agent.move, rest dont
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    <p>I'm new to java, and have been working on creating a code to get a small picture of a car to move using the keys. My problem is when I add more than 1 buttons to the panel. The function of the button in the code I post is nothing, just prints "button [i] clicked" message. The purpose is for them to read a file and update the locations of the car from the data in the file. This is supposed to be a piece on my Reinforcement Learning project. I thought it would be a good opportunity to learn java since this "graphics package" is not necessary for the project, just a "nice" addition. The code is here:</p> <pre><code>package graphics; public class Board extends JPanel implements ActionListener { private Timer timer; private Agent agent; private String button = "button.png"; private Image image; protected JButton b1; protected JButton b2; protected JButton b3; public Board() { //Keylistener added for the agent to respond to arrow keys addKeyListener(new TAdapter()); agent = new Agent(); timer = new Timer(10, this); //10ms timer calls action performed timer.start(); //This part for the button. ImageIcon i = new ImageIcon(this.getClass().getResource(button)); image = i.getImage(); b1 = new JButton("1", i); b1.setVerticalTextPosition(AbstractButton.CENTER); b1.setHorizontalTextPosition(AbstractButton.LEADING); b1.setActionCommand("Active1"); b2 = new JButton("2", i); b2.setVerticalTextPosition(AbstractButton.CENTER); b2.setHorizontalTextPosition(AbstractButton.LEADING); b2.setActionCommand("Active2"); b3 = new JButton("3", i); b3.setVerticalTextPosition(AbstractButton.CENTER); b3.setHorizontalTextPosition(AbstractButton.LEADING); b3.setActionCommand("Active3"); b1.addActionListener(this); b2.addActionListener(this); b3.addActionListener(this); add(b1); add(b2); add(b3); setFocusable(true); setBackground(Color.BLACK); setDoubleBuffered(true); } public void paint(Graphics g) { super.paint(g); Graphics2D g2d = (Graphics2D)g; //Transformations for the agent to be painted based upon its position and orientation AffineTransform trans = new AffineTransform(); trans.rotate(Math.toRadians(agent.getTh()), agent.getX()+64, agent.getY()+64); trans.translate(agent.getX(), agent.getY()); g2d.drawImage(agent.getImage(), trans, this); // Draws agent with said transformations Toolkit.getDefaultToolkit().sync(); g.dispose(); } public void actionPerformed(ActionEvent ae) { b1.setEnabled(true); b2.setEnabled(true); b3.setEnabled(true); if (ae.getActionCommand()=="Active1") { b1.setEnabled(false); b2.setEnabled(true); b3.setEnabled(true); System.out.println("Clicked 1"); agent.reset(); } if(ae.getActionCommand()=="Active2") { b1.setEnabled(true); b2.setEnabled(false); b3.setEnabled(true); System.out.println("Clicked 2"); agent.reset(); } if (ae.getActionCommand()=="Active3") { b1.setEnabled(true); b2.setEnabled(true); b3.setEnabled(false); System.out.println("Clicked 3"); agent.reset(); } agent.move(); repaint(); } private class TAdapter extends KeyAdapter { public void keyReleased(KeyEvent e) { agent.keyReleased(e); } public void keyPressed(KeyEvent e) { agent.keyPressed(e); } } } </code></pre> <p>Now, the problem is this. If I click button 1, or button 2, the other buttons are disabled and it says "Clicked 1 (or 2)" which is fine. But the agent.move() and repaint() aren't invoked. The car doesn't move when I press the keys. If I then click button 3, the other two buttons are disabled and the car moves with the keys.</p> <p>If I add buttons in a different order add(b3); add(b2); add(b1); then the same happens but this time its button 1 that works fine.</p>
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