wait with messages

Dar Scott dsc at swcp.com
Thu May 1 13:54:08 EDT 2014


Larry,

I have an old stack called “A Primer on Message Mechanics” that is an exhaustive description of “send” and cousins, should you need to get into this again.  (Read “belabored” if you want.)  It is here:

http://pages.swcp.com/dsc/revstacks.html

It does cover ‘wait with messages’ briefly, but the emphasis is on ‘send’.  

Dar

On May 1, 2014, at 11:30 AM, <larry at significantplanet.org> <larry at significantplanet.org> wrote:

> Thanks Scott,
> 
> Here is the workaround I did:
> on openStack
> play ac "sound1.wav"
> send "mouseDoubleUp" to image "bigPlay" in 8 seconds
> end openStack
> 
> in the script of image "bigPlay" I have:
> on mouseDoubleUp
> play ac "sound2.wav"
> end mouseDoubleUp
> 
> also in the script of image "bigPlay" I have
> on mouseUp
> (do a bunch of other stuff too)
> stop playing ac "sound1.wav"
> stop playing ac "sound2.wav"
> end mouseUp
> 
> What really BUGS me about LiveCode is that the documentation (example, wait with messages) is SO sketchy, that you cannot figure out how to use it.  I'm constantly wasting my time fighting something that doesn't work and then ending up having to do a workaround as shown above.
> 
> And as an FYI in case you ever run into this:  I imported a folder of audio files and LC inexplicably made my "bigPlay" image disappear - even when it says "visible" in the property inspector, is in the top layer and blendlevel is 0.  After fighting that twice, I went back and had to import each audio file individually.  Note that I'm using 6.1.1 (rc 4) on XP.
> 
> Anyway, thanks for the code below.  I may end up using it somewhere sometime.
> Larry
> 
> 
> ----- Original Message ----- From: "Scott Rossi" <scott at tactilemedia.com>
> To: "LiveCode Mail List" <use-livecode at lists.runrev.com>
> Sent: Thursday, May 01, 2014 11:10 AM
> Subject: Re: wait with messages
> 
> 
>> Hi Larry:
>> 
>> This is probably a situation where wait with messages will not work.  If
>> you want to cancel sound 2 independently of sound 1, the second sound
>> needs to have its own play message so it can be canceled separately.  This
>> is why I originally suggested the possibility of using a loop script or
>> similar.
>> 
>> You might try something like this (watch line wrap):
>> 
>> # PLAY SOUND 1
>> on openStack
>>  play ac "sound1.wav"
>>  send "playBack2" to me in 8 seconds
>> end openStack
>> 
>> # PLAY SOUND 2
>> command playBack2
>>  play ac "sound2.wav" looping
>> end playBack2
>> 
>> # CANCEL PLAYBACK OF SOUND 2
>> # BEFORE OR AFTER PLAYBACK HAS STARTED
>> command cancelPlayBack2
>>  cancel item 1 of line lineOffset("playBack2",pendingMessages()) of
>> pendingMessages()
>>  play stop
>> end cancelPlayBack2
>> 
>> 
>> Now, any control that user can press to cancel the playback of sound 2
>> needs to include a call to the above "cancelPlayBack2" command in its
>> script.  Note that this will also stop playback of any imported sound due
>> to the "play stop".
>> 
>> 
>> Regards,
>> 
>> Scott Rossi
>> Creative Director
>> Tactile Media, UX/UI Design
>> 
>> 
>> 
>> 
>> On 5/1/14 8:54 AM, "larry at significantplanet.org"
>> <larry at significantplanet.org> wrote:
>> 
>>> I have a splash screen and want to play 2 sounds in it, but allow the
>>> user to leave as soon as he/she wishes.
>>> 
>>> This was my previous code and it worked fine:
>>> 
>>> play audioclip "Sound1.wav"
>>> 
>>> wait 8 seconds
>>> 
>>> play audioclip "Sound2.wav" looping
>>> 
>>> the problem with the above code is that the "wait" command meant that the
>>> user could not click on the button to go to the main screen until the 8
>>> seconds was up.
>>> 
>>> and this is my new code:
>>> 
>>> play audioclip "Sound1.wav"
>>> 
>>> wait 8 seconds with messages
>>> 
>>> play audioclip "Sound2.wav" looping
>>> 
>>> the problem with the new code is this:
>>> 
>>> IF the user clicks on the button (to go to the main screen) AFTER the 8
>>> seconds, then everything works fine - as it always did
>>> 
>>> but IF the user clicks on the button DURING the 8 seconds, then
>>> everything goes completely CUCKOO!!
>>> 
>>> So, the only difference in the expected result and the cuckoo result is
>>> that I added "with messages"
>>> 
>>> Therefore, I am assuming that I need to so something with messages if the
>>> user clicks during the 8 seconds, but I have no idea what to do.
>>> 
>>> TIA for any help
>>> 
>>> Larry
>>> _______________________________________________
>>> use-livecode mailing list
>>> use-livecode at lists.runrev.com
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>>> subscription preferences:
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>> 
>> 
>> 
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