azedine404
New Member
Im trying to animate 2 boxes to go from the top right to the bottom left of a JPanel. For the animation I'm using a Swing Timer and \[code\]SwingUtilities.invokeLater()\[/code\]. The problem is that when I click the start button. It only animates and moves the blue box, but not the red one.Heres the code: \[code\] //import neccessary stuffpublic class Example extends JFrame {public static void main(String[] args) { Example e = new Example(); e.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); e.setSize(600, 565); e.setVisible(true);}</code>private JButton startButton = new JButton("Start");private JPanel theTable = new table();public Example() { add(startButton, BorderLayout.SOUTH); add(theTable, BorderLayout.CENTER); Handler handler = new Handler(); startButton.addActionListener(handler);}public ArrayList<Integer> xPos, yPos;final int START_POSITION_X = 470;final int START_POSITION_Y = 10;final int[] END_POSITION_X = {70, 87};final int END_POSITION_Y = 160;private class table extends JPanel { public table() { xPos = new ArrayList<Integer>(); yPos = new ArrayList<Integer>(); xPos.add(START_POSITION_X); //default position for box1 yPos.add(START_POSITION_Y); xPos.add(START_POSITION_X); //default position for box2 yPos.add(START_POSITION_Y); } public void paintComponent(Graphics g) { super.paintComponent(g); this.setBackground(new Color(-16756217)); g.setColor(Color.RED); g.fillRect(xPos.get(1), yPos.get(1), 89, 129); g.setColor(Color.BLUE); g.fillRect(xPos.get(0), yPos.get(0), 89, 129); if (isAnimating) { animator.start(); } else { animator.stop(); isAnimating = false; } }}private class Handler implements ActionListener { public void actionPerformed(ActionEvent e) { Runnable r1 = new Runnable() { @Override public void run() { animateCard(0, END_POSITION_X[0], END_POSITION_Y); } }; SwingUtilities.invokeLater(r1); animateCard(1, END_POSITION_X[1], END_POSITION_Y); }}public void animateCard(int card, int xDest, int yDest) { cardID = card; xDestination = xDest; yDestination = yDest; totalXDistance = Math.abs(xDestination - START_POSITION_X); totalYDistance = Math.abs(yDestination - START_POSITION_Y); animator.start();}int cardID;int xDestination, yDestination, totalXDistance, totalYDistance;boolean isAnimating = false;Timer animator = new Timer(15, new ActionListener() { int startVel = 20; public void actionPerformed(ActionEvent e) { double xRelDistance, xAbsDistance, xVel; int xRealVel; xAbsDistance = xDestination - xPos.get(cardID); xRelDistance = xAbsDistance / totalXDistance; xVel = startVel * xRelDistance; double yRelDistance, yAbsDistance, yVel; yAbsDistance = yDestination - yPos.get(cardID); yRelDistance = yAbsDistance / totalYDistance; yVel = startVel * yRelDistance; if (xVel > 0) { xRealVel = (int) java.lang.Math.ceil(xVel); } else { xRealVel = (int) java.lang.Math.floor(xVel); } xPos.set(cardID, xPos.get(cardID) + xRealVel); int yRealVel; if (xVel > 0) { yRealVel = (int) java.lang.Math.ceil(yVel); yPos.set(cardID, yPos.get(cardID) + yRealVel); } else { yRealVel = (int) java.lang.Math.floor(yVel); } yPos.set(cardID, yPos.get(cardID) + yRealVel); if ((xPos.get(cardID) == xDestination) && (yPos.get(cardID) == yDestination)) { isAnimating = false; } else { isAnimating = true; } repaint(); }});\[/code\]}