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POmaking an image move along a line in java
 

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  1. POmaking an image move along a line in java
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    <p>Im trying to make a simple program where I click and an image appears and moves along the line from the starting point to the point where I clicked. I cant seem to get the image to travel along the line because I am getting problems with the slope. Also, I cannot seem to get the picture to move along and direction in an animated fashion. Any advice?<br> (i excluded mousemotionlistener code i had)</p> <pre><code> public class Screen extends JPanel implements Runnable { public Thread thread = new Thread(this); //this is needed for a game loop (i think) public static JLabel statusbar; //displays a status bar showing what mouse movements are taking place private Image cat; //image of the cat public int xCoord; //get the coordinates of the mouse pressed public int yCoord; public double xCoord2; //get the coordinates as the mouse is released public double yCoord2; public int yCoordMove; public int xCoordMove; public double slope; public Screen(Frame frame) { thread.start(); loadPic(); //calls the loadPic method above Handlerclass handler = new Handlerclass(); //creates a new class to use the mouse motion listener System.out.println("this mouse thing works!"); addMouseListener(handler); addMouseMotionListener(handler); statusbar = new JLabel("default"); add(statusbar); } public void run(){ //this is the game run loop System.out.println("this is running"); try{ Thread.sleep(5); //sleeps the run loop after 5000 game seconds } catch(Exception e) {} } public void loadPic(){ //loads the picture cat = new ImageIcon("C:\\Users\\Camtronius\\Documents\\NetBeansProjects\\Moving Block Proj\\src\\MovingBlock\\catIcon1.png").getImage(); //gets the image System.out.println("Image Loaded!"); } @Override public void paintComponent(Graphics g){ super.paintComponent(g); //paints the component, the picture, on top g.drawImage(cat, xCoord, yCoord, this); //draws the image and at a specific location g.drawString("sup tho!", 250, 250); //draws the text to the screen g.setColor(Color.black); //sets color to red g.drawLine(xCoord, yCoord, xCoordMove, yCoordMove); //draws the clicked line } public void picMove(){ double numerator = yCoord2 - yCoord; double denominator = xCoord2 - xCoord; if(denominator == 0) { denominator =.0001; } slope = (numerator/denominator); System.out.printf("the slope is: %.2f \n\n ",slope); } </code></pre>
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    1. USCameron Roberson
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    1. COTake a look at [this example](http://stackoverflow.com/questions/14886232/swing-animation-running-extremely-slow/14902184#14902184) it basically generates a random line (start point and end point) for an image to travel along, angles the image accordingly and animates it along the path...lots of fun for the whole family.
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      1. POmaking an image move along a line in java
      1. USMadProgrammer
    2. COThat example seems a little complex for me as I am just beginning. Do you know of any others that may help?
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      1. USCameron Roberson
 

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