Main game loop not updating?

[tritonfx]

Hey guys, I read forums.crackberry.com/f9/help-new-guy-making-game-264468/#post3072053 and am using that as a template for a game. The problem is in

public void paint(Graphics g) {
     g.setColor(_random.nextInt();); // _random being a Random object already created
     g.drawEllipse(25, 25, 25 + 10, 25, 25, 25 + 10, 0, 0); 
}

I basically just set a diff color for the ellipse each time paint is called, but it seems paint is only called once, so I was wondering if I'm doing it wrong. I basically copied everything from daveinsurgent's post, which is a great starting pt btw.

[QuiteSimple]

you need to call invalidate() in a loop (invalidate() forces the screen to repaint itself)

I guess you need to implement that part of the sample code:

  private class Logic extends Thread {
    pulic Logic() {
      start();
    }

    public void run() {
      while (_active) {
        update();
        invalidate();
      }
    }

As you can see invalidate() is called in the Logic thread

[tritonfx]

well i copyed it word for word i just changed the drawing.
and it included that.

Posted from my CrackBerry at wapforums.crackberry.com

[GlenB]

If I were writing a Blackberry game, I would start with Tony Westbrook's excellent blog post which Toni Westbrook dot Com » Creating a Blackberry Game - Part 1

[tritonfx]

Thanks, I'm actually using that tut as well. And it seems the problem was because the member _logic is declared as type Thread when it should've been type Logic, which explains why it didn't looped.

[GlenB]

No problem - glad you got it sorted. The most active forum for Blackberry development seems to be the official RIM Java Development forum over at Java Development - BlackBerry Support Community Forums

Worth a look if you havent already seen it.