From: Richard Dale <Richard_Dale@...>
Date: 2004-09-29T21:44:23+09:00
Subject: Re: ruboids (on mac os) - singleton instance() returns nil?

Michal 'hramrach' Suchanek wrote:

> I get the expected behavior if I test with a simple class in irb but I
> get non-singleton if I subclass Qt::Object.
> 
....

> 
> Is it impossble to base singletons on QObject?
> 
Yes, it looks as though that doesn't work. I changed it to a global variable
$world instead:

Params.readParamsFromFile(ARGV[0] || 'boids.properties')
#world = World.instance
$world = World.new
win = WorldWindow.new()
app.setMainWidget(win)

$world.canvas = win.canvas
win.show()
$world.start()
app.exec()

But I had to make quite a few changes as well because the game is written in
Ruby/Qt as opposed to QtRuby. So now I've got the camera dialog working,
and the main window has a 'Quit' and a 'Camera' option. It doesn't seem to
have any way to start the game though. I've emailed the current version to
you.

-- Richard