Scratch

BarryBurk wrote:

Hi,
I'm having trouble with the "Stop all" control. I would expect it to instantly stop all scripts from running. But I'm experiencing that, for example, it allows a forever-loop to complete its current iteration before it stops.

In the first block below, the sprite will move up until it touches the top edge. However, just after it stops (after a short delay), it makes one more move. To me it seems like it completes the current "forever" iteration, before it finally stops.

In the second block, I've used an "if-else" instead of only "if". This makes the sprite stop instantly when touching the edge, as expected. This is because the "change y by 5" is not run within the same iteration (because it depends of the "else" condition), I suppose.

Is this "correct behaviour", or is it something I oversee in the first example?

when gf clicked
forever  
if <touching [edge v]?> 
stop all 
end
change y by (5)

when gf clicked
forever  
if <touching [edge v]?>
stop all 
else
change y by (5)
end

Hmmm... strange. I would've expected otherwise...

Anyway, out of curiosity, do you have any other scripts in your sprite?

With regards,

ErnieParke

Last edited by ErnieParke (2013-04-11 20:52:56)

Hyperbola wrote:

ErnieParke wrote:

Hmmm... strange. I would've expected otherwise...

Anyway, out of curiosity, do you have any other scripts in your sprite?

With regards,

ErnieParke

Nope, it happens for me too. I think it's a bug.

I actually just tested this and I got the same results as you. Well, now that I think of it, it doesn't seem too out of place, though it's a "bug" none the less.

To BarryBurk:
This isn't anything that you're overseeing, though it's not necessarily "correct behavior" either. I'd love to do some more testing on this to find out Scratch's response to issues like this before I can get you more information.

Okay, so I had just conducted some tests. I still haven't found out much, though I did notice that you could always change your upper script into this to remove the "glitch":

when gf clicked
forever
 change y by (5)
 if (touching [edge v]?)
  stop all 
 end

Last edited by ErnieParke (2013-04-11 21:02:39)