Hey,

I'm a new member here, and new to the groups thing, I hope this will be very beneficial for me.

Anyway, my question is, is there a code to make a pause button? So when I'm running the game, all I have to do is pause the game, go somewhere and I can go and unpause the game.

Thanks
Aly

Well, the obvious and trivial answer would be to use the Greenfoot built-in Run/Pause button. Is there a reason not to use this one?

If you don't want to stop your scenario cold, but have a reason to keep it running while it's logically stopped, then you would need to make every actor stop acting. There are various ways to do this.

You could add a button on your screen that sets a boolean 'stopped' in the world, and all actors can check this flag (maybe via a world.isStopped() method).

So, at the top of the actor's act method, you could add

  if (world.isStopped()) {
      return;
  }

(assuming 'world' holds a properly typed world instance).

In fact, you could make a superclass 'StoppableActor' that all your actors that should stop inherit from and put it in there.

Michael

On 24 Feb 2011, at 01:38, Aly Abed wrote: