Totally Loopy

David Williams dwilliams at livecode.com
Fri Jul 17 13:46:45 CEST 2015


Hi Richmond,

The way to do this is to wait with messages - so 'wait 4 ticks' becomes  
'wait 4 ticks with messages'. This form of the command allows other  
messages to be passed while it's executing, making it a non-blocking wait.

Regards,

-David

On Fri, 17 Jul 2015 11:52:06 +0100, Richmond <richmondmathewson at gmail.com>  
wrote:

> I am animating a series of images like this:
>
> on animaSHun
>     set the vis of img "M1" to true
>     set the vis of img "M4" to false
>     wait 4 ticks
>      set the vis of img "M2" to true
>     set the vis of img "M1" to false
>     wait 4 ticks
>      set the vis of img "M3" to true
>     set the vis of img "M2" to false
>     wait 4 ticks
>     set the vis of img "M4" to true
>     set the vis of img "M3" to false
>     wait 4 ticks
>     animaSHun
> end animaSHun
>
> and there I was feeling proud of myself for having been "so" clever, BUT  
> I was wrong . . .
>
> Now in the same cardScript I have an "on arrowKey" script to let me move  
> the animation
> around the card with the arrow keys on my keyboard . . .
>
> But that "animaSHun" routine goes round and round (as, indeed, it  
> should) and the arrowKeys
> are quite unable to "get a word in edgeways"; in fact the only way to  
> stop the thing
> is by crashing LiveCode.
>
> I would be grateful if anyone could tell me how to get a word in  
> edgeways while keeping the animation going.
>
> Yup: I know I could just use an animated GIF image . . . but, call me  
> bloody-minded, I have my
> reasons for not using one.
>
> Richmond.
>
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