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| package Animation;
public class Animation {
public static void main(String[] args) {
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new BackgroundPane());
frame.pack();
frame.setVisible(true);
}
}
class BackgroundPane extends JPanel {
private BufferedImage bg;
private int yOffset = 0;
private int yDelta = 1;
public BackgroundPane() {
try {
bg = ImageIO.read(new File("src/images.png"));
} catch (Exception ex) {
ex.printStackTrace();
}
Timer timer = new Timer(10, new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
yOffset += yDelta;
if (yOffset > getHeight()) {
yOffset = 0;
}
repaint();
}
});
timer.start();
}
@Override
public Dimension getPreferredSize() {
return new Dimension(300,300);
}
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2d = (Graphics2D) g.create();
int xPos = (getWidth() - bg.getWidth()) / 2;
int yPos = yOffset;
yPos = yOffset;
while (yPos < getHeight()) {
g2d.drawImage(bg, xPos, yPos, this);
yPos += bg.getHeight();
}
g2d.dispose();
}
} |
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