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Re: problem in showing balls 10 Years Ago by Traevel …from the terribly confusing naming for balls and lists of balls, you call `updateball` to add balls every few ticks, then you … other tick, you update their position and redraw the balls on their new position, this probably also means you'… clear the entire panel, and redraw pacman and the balls on that every tick. And I'd strongly suggest using… Java array of balls 13 Years Ago by Stevo812 …/**Ball class which contains the code for creating the balls and setting the * boundaries of the screen. …2; /**double which declares the friction applied to the balls when traveling * along the table. */ private double friction… contains the code for collisions between * the balls. */ collision.update(this, b, b2); … problem in showing balls 10 Years Ago by toring … void updateball(){ for(Balls bb:ball){ ball.add(new Balls(xPos,yPos)); } } } class Balls{ int x,y; public Balls(){ } public Balls(int x,int y… Re: problem in showing balls 10 Years Ago by toring …, yPos = 35; int arcMouth=300; Balls pacmanball = new Balls(); List<Balls>ball = new ArrayList<Balls>(); public Mypanel(){ myTimer(); } protected void… Re: problem in showing balls 10 Years Ago by toring …int arcMouth=300; Balls pacmanball = new Balls(); List<Balls>listball = new ArrayList<Balls>(); public Mypanel…fillArc(xPos,yPos,30,30,30,arcMouth); for(Balls b:listball){ b.drawballs(g); } } public… Re: problem in showing balls 10 Years Ago by toring …i < 10; i++) { listball.add(new Balls(xPos+5,yPos+15)); } myTimer(); } protected …fillArc(xPos,yPos,30,30,30,arcMouth); for(Balls b:listball){ b.drawballs(g); } } public… Re: Bouncing Balls: Creating a new ball when two balls collide 1 Year Ago by toneewa … = 50; public BallPanel(Ball[] balls) { b.addAll(Arrays.asList(balls)); timer = new Timer(delay, …new ball's parameters } } } } } // draw the balls for (int i = 0; i < b.size(); … Re: Bouncing Balls: Creating a new ball when two balls collide 1 Year Ago by toneewa …50; public BallPanel(Ball[] balls) { b.addAll(Arrays.asList(balls)); timer = new Timer(…s parameters } } } } } // Draw the balls for (Ball ball : b) { // Draw the… Re: problem in showing balls 10 Years Ago by Traevel …words, you can't draw the balls until the jPanel **has** a Graphics…after the repaint method or the balls will never stay visible long …repaint(); updateball(); } public void updateball(){ for(Balls b:listball){ b.moveBalls(); if(super.getGraphics()!=… Re: problem in showing balls 10 Years Ago by Traevel Because Balls does not extend jPanel (more specifically, a jComponent). You're … means it has to be present in the super class. Balls doesn't have a super class. Re: problem in showing balls 10 Years Ago by toring @Traevel, so if i will not extend my Class Balls to JPanel,I could not use the method paintComponent in my Balls Class ?... Thank you in avdvance. Re: how to add more balls ? 13 Years Ago by autorunman22 … addBalls(); System.out.println("!"); Thread.sleep(4000); Balls balls = new Balls(); balls.paintMe(g); }catch(Exception ex){} } public static void main… directionX =2; static int directionY = 2; static int widx; public Balls() { Thread gameThread = new Thread() { public void run() { while(true)… Re: problem in showing balls 10 Years Ago by Traevel If by behind you mean they don't get updated at the same pace as pacman it's because you're only updating the balls when pacman has its mouth open. Re: problem in showing balls 10 Years Ago by toring why is it cannot replace the drawballs method in my Balls Class into this protected void paintComponent(Graphics g) { super.paintComponent(… Re: problem in showing balls 10 Years Ago by Traevel If you don't extend Balls to a jComponent, then no you can't use that method in that manner. Re: problem in showing balls 10 Years Ago by Traevel … in drawing position? If I run your code now the balls are not moving and it just draws a rectangle at… Re: problem in showing balls 10 Years Ago by Traevel I don't know what your goal is, but what I'm seeing is a blue rectangle moving away from pacman yes. It could be that there are 10 balls that all start in the same spot moving at the same pace, judging from what I'm seeing in your constructor though. Re: problem in showing balls 10 Years Ago by toring ….RED); g.fillArc(xPos,yPos,30,30,30,arcMouth); for(Balls b:listball){//how to perform this without inside b.drawballs… Re: problem in showing balls 10 Years Ago by toring ….RED); g.fillArc(xPos,yPos,30,30,30,arcMouth); for(Balls b:listball){//how to perform this without inside b.drawballs… Bouncing Balls: Creating a new ball when two balls collide 1 Year Ago by jprog1000 ….paintComponent( g ); g.setColor(Color.red); // move the balls for (int i = 0; i <b.length; i… b[i].changeDirection(b[j]); } } } // draw the balls for (int i = 0; i <b.length; i… Bouncing Balls in Panel 14 Years Ago by renovatiotr …swing-book/Chapter8_files/image002.gif[/URL] There are moving balls in seperate panels(not imaages). Smaller the panel's… area, faster the balls move. I did the JSplitPane and Panels but failed… to do the Moving Balls Part. [CODE] import java.awt.*; import javax.swing.*;… Re: Bouncing Balls: Creating a new ball when two balls collide 1 Year Ago by jprog1000 Hello, Thank you again so much! All your additions are clear, but it seems like whenever two balls collide, more than one ball is added to the arraylist and painted. Any way to have just one ball added to the panel for every collision? Have some kind of a toggle flag in paintcomponent? Regards Re: how to add more balls ? 13 Years Ago by JamesCherrill …;Ball> is like an array of Balls except that it grows and shrinks to fit… the number of Balls in it at any time. Experienced Java …allBalls) { [/I] loop just loops through all the Balls in the ArrayList - it's normally called a for/… can just create a big-enough array of Balls, and have a variable to keep track of… Guts or Balls 17 Years Ago by Ancient Dragon We've all heard about people having guts or balls. But do you really know the difference between them? In …;Are you still cleaning, or are you flying somewhere?" BALLS - is coming home late after a night out with the… collar, slapping your wife on the butt and having the balls to say: "You're next." I hope this… Re: Colliding Balls 12 Years Ago by Taywin … inside a closed container at once. Then you will see balls collide one another? =) Anyway, what are you trying to do… real collision detection needs to know the center of both balls (assume balls are perfectly circle) and their radiuses. The estimate needs… corner of their boundary box and the size of the balls. Re: Guts or Balls 17 Years Ago by Lardmeister [quote=Ancient Dragon;449457]I may have snow on the roof but I'm not dead yet :)[/quote]Since you are still alive, you either don't have guts, balls or a wife. Re: Guts or Balls 17 Years Ago by EnderX [quote=Lardmeister;449919]Since you are still alive, you either don't have guts, balls or a wife.[/quote] Not necessarily true. It is possible, after all, that Ancient Dragon has all three but also the wisdom to know when [I]not[/I] to allow the first two to have their moment. Re: Guts or Balls 17 Years Ago by Lardmeister If your guts or balls don't have a moment, then you don't have them. A BlackBerry with no balls 15 Years Ago by happygeek … with a 2GB microSDHC card) but no GPS. And no balls. I don't just mean the underwhelming spec, but literally… it has no balls. Instead of the usual trackball the Curve 8250 comes with… how to bounce balls in open gl 14 Years Ago by nearest … c++.I have made a quad a balls.Now i want to bounce the balls on quad repeadetly but i donot know…