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Thread: Need help making an image move from one side of screen to the other.

  1. #1
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    Question Need help making an image move from one side of screen to the other.

    Hi, I am doing a college project and have been told I have to create a splash screen with an image that moves across the screen I have tried and tried but always end up with errors or failing.....SpaceShip.png is the image I need animating....

    can someone here help me?? My code is made in BlueJ
    Attached below is a copy
    I had to make the buttons separate classes as the project requirements said so....

    Here is my code:

    My main Code:

    /**
     * Libraries
     */
    import java.awt.*;
    import java.awt.event.*;
    import javax.swing.*;
    import java.awt.Graphics;
    import java.awt.Image;
    import java.awt.MediaTracker;
    import java.awt.Toolkit;
    import java.awt.Color.*;
    import java.awt.Insets;
    import java.awt.GridBagConstraints;
    import java.awt.GridBagLayout;
    import java.awt.FlowLayout;
     
     
     
    /**
     * 
     * @author (Stefan xxxxx) 
     * @version (v1.2)
     */
    public class SpaceDetectives extends JFrame
    {
       private JPanel panel;
       private JPanel SpaceFrame;
     
     
     
       public static void main(String args[])
        {
             JFrame SpaceFrame = new SpaceDetectives();
             SpaceFrame.setSize(650, 470);
             SpaceFrame.setBackground(Color.black);
             SpaceFrame.setUndecorated(true);
             SpaceFrame.setVisible(true);
     
             Dimension dim = Toolkit.getDefaultToolkit().getScreenSize(); 
             int w = SpaceFrame.getSize().width; 
             int h = SpaceFrame.getSize().height; 
             int x = (dim.width-w)/2; 
             int y = (dim.height-h)/2;   
             SpaceFrame.setLocationRelativeTo(null);
     
     
     
     
        }
     
     
        public SpaceDetectives()
        {
          setTitle("Space Detectives");
          setDefaultCloseOperation(EXIT_ON_CLOSE);
          setLayout(new BorderLayout());
          JPanel panel = new Background();
          JPanel slogancon = new JPanel();
          JLabel label = new JLabel("Testing");
     
          JPanel pane1 = new BtnStart();
          JPanel pane2 = new BtnExit();
     
          panel.setOpaque(false);
          pane1.setOpaque(false);
     
     
     
     
          GridBagConstraints gc = new GridBagConstraints();
     
     
     
     
            gc.insets = new Insets(0, 0, 0, 0);
            gc.gridx = 1;
            gc.gridy = 0;
     
          panel.add(pane1, gc);
     
     
          panel.add(pane2, gc);
     
     
     
          pane2.setOpaque(false);
     
          getContentPane().add(panel);
     
          panel.setLayout(new FlowLayout(FlowLayout.CENTER, 5, 390));
     
     
     
        }
     
     
     
     
       public class Background extends JPanel 
       {
           Image bgimage = null;
           Image test = null;
     
     
     
           public Background()
           {
     
     
     
               MediaTracker mt = new MediaTracker(this);
        bgimage = Toolkit.getDefaultToolkit().getImage("b2.png");
        mt.addImage(bgimage, 0);
        test = Toolkit.getDefaultToolkit().getImage("SpaceShip.png");
        mt.addImage(test, 0);
     
            }
     
     
            public void paintComponent(Graphics g) 
            { 
                super.paintComponent(g); 
                int xPos = 10;
     
     
     
     
                if(bgimage != null) 
                { 
                    int imwidth = bgimage.getWidth(null); 
                    int imheight = bgimage.getHeight(null); 
     
                    if((imwidth > 0) && (imheight > 0)) 
                    {                 
                        for(int y = 0; y<getHeight(); y+=imheight) 
                        { 
                            for(int x = 0; x<getWidth(); x+=imwidth) 
                            {                     
                                g.drawImage(bgimage, x, y, null); 
                                g.drawImage(test,xPos,50,null);
                                g.setFont(new Font("Helvetica", Font.BOLD,  13));
                                g.setColor(Color.black);
                                g.drawString("The mysteries of the universe are just around the corner", 175, 274);
     
     
     
        }
                            } 
     
     
     
     
     
        }
    }
    }
     
    }
     
     
    }

    My Buttons:

    import java.awt.*;
    import java.awt.geom.*;
    import javax.swing.*;
    import java.awt.event.*;
     
    public class BtnStart extends JPanel implements ActionListener
    {
    private JButton start;
     
     
    public BtnStart()
    {   
                 ImageIcon start = new ImageIcon("Start.png");
                 JButton starrt = new JButton(start);
                 starrt.setPreferredSize(new Dimension(95, 40));
                 starrt.setOpaque(false);
    starrt.setContentAreaFilled(false);
    starrt.setBorderPainted(false);
                 Icon rolloverIcon = new ImageIcon("StartRoll.png");
                 starrt.setRolloverIcon(rolloverIcon);
                 starrt.addActionListener(this);
                 add(starrt);
     
     
                }
     
                public void actionPerformed(ActionEvent event) {
            JFrame frame = new JFrame();
            JButton button = new JButton("Dummy game screen");
     
            frame.setSize(600,600);
            frame.getContentPane().add(button);
            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            frame.setVisible(true);
     
        }
            }

     
    import java.awt.*;
    import java.awt.geom.*;
    import javax.swing.*;
    import java.awt.event.*;
     
    /**
     * Write a description of class BtnExit here.
     * 
     * @author (your name) 
     * @version (a version number or a date)
     */
    public class BtnExit extends JPanel implements ActionListener
    {
    	// instance variables - replace the example below with your own
    	private JButton exit;
     
    	/**
    	 * Constructor for objects of class BtnExit
    	 */
    	public BtnExit()
    	{
    	         ImageIcon Exit = new ImageIcon("Exit.png");
    		    JButton exitt = new JButton(Exit);
                 exitt.setPreferredSize(new Dimension(80, 40));
                 exitt.setOpaque(false);
                 exitt.setContentAreaFilled(false);
                 exitt.setBorderPainted(false);
                 Icon rolloverIcon = new ImageIcon("ExitRoll.png");
                 exitt.setRolloverIcon(rolloverIcon);
                  exitt.addActionListener(this);
                 add(exitt);
    	}
     
    	public void actionPerformed(ActionEvent event) {
            System.exit(1); 
        }
     
    }
    Attached Files Attached Files
    Last edited by Xillius200; November 25th, 2011 at 11:10 AM. Reason: Edited out my full name


  2. #2
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    Default Re: Need help making an image move from one side of screen to the other.

    You say you have errors. What are they? What do you mean when you say that it fails? If you want help, you'll have to provide an SSCCE that demonstrates the problem.
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