Re: [chuck-users] how to mickey-mouse a 'switch' statement into chuck?

12 Oct 2015

      Okay, I finally found the documentation re usage...
https://github.com/heuermh/lick/wiki

Shreds that just declare classes so that other shreds can instantiate & use
them... It makes my mind blur, but so it goes!

On Mon, Oct 12, 2015 at 3:54 PM, Forrest Curo  wrote:
...
I'm gathering that I can just put 'machine.add(<any of these classes in
the directory that I want to use>)' and
that should work(?)
On Mon, Oct 12, 2015 at 2:54 PM, Forrest Curo 
wrote:
...
Okay, I did find the github zip for tap-plugins -- but the later plugins
are struggling; and I wasn't thinking of using them... so I'll assume that
I'm okay if I don't, for now.
On Mon, Oct 12, 2015 at 1:32 PM, Michael Heuer  wrote:
...
Forrest Curo  wrote:
...
"Something more elaborate than branching on the value of a specific
variable?"
To use a text keyboard to trigger real-time changes in key, mode
('major', 'minor', etc), record-&-repeat-&-vary (by scale degrees in
whichever the current  key & mode are), accelerate or slow playback, change
target instrument for playback-and/or-midi-keyboard, dump or keep current
loop, etc:
with some 36+ keys available for whatever organization of this works --
and I want to be able to modify the arrangement meanwhile so I don't
trap myself into a bad design...
so running the text input through a maze of logic by ascii values seems
too cumbersome.
I know, I could search-&-replace, but finding a key value in a list
and changing the associated function
just seems a whole lot less ugly!
-------------------------
Um, I'm now trying to install 'tap-plugins' as a prerequisite for
installing 'lick' -- and the instructions for that are telling me, ~'just
cd into folder and run 'make' -- but make can't find anything _to_ make! Do
I really need those plugins to install & use lick?
No.  Without them chuck will complain when loading the import.ck file
$ chuck + import.ck
...
[TapeDelay.ck]:line(26): cannot extend incomplete type 'Swh'
[TapeDelay.ck]:line(26): ...(note: the parent's declaration must preceed
child's)
[RubberBand.ck]:line(26): cannot extend incomplete type 'Ladspa'
[RubberBand.ck]:line(26): ...(note: the parent's declaration must
preceed child's)
"LiCK imported." : (string)
but everything else will work fine.  And installing all of those plugins
is a real mess, especially on OSX.  I should probably cut a docker image at
some point.
michael
...
On Mon, Oct 12, 2015 at 11:41 AM, Spencer Salazar <
spencer@ccrma.stanford.edu> wrote:
...
Doing functional stuff in ChucK can be pretty fun (and verbose), but
for specifically switch-case structures, mostly these can be implemented
e.g. as
if(var == 0) // case 0:
{ }
else if(var == 1) // case 1:
{ }
else // default:
{ }
You can't do fall-throughs or nutty things like Duff's device, but
(making up a number) maybe 90% of switch-case uses I see are basically a
slightly better-looking if-else. Are you doing something more elaborate
than branching on the value of a specific variable?
spencer
On Mon, Oct 12, 2015 at 2:22 PM, Forrest Curo 
wrote:
...
It looks far prettier than a mess of logical spaghetti!
But is this documented with examples for the help & understanding of
object-challenged geezers from the days of punch-card boxes converted
twice/day to error-message listings?
On Mon, Oct 12, 2015 at 10:37 AM, Michael Heuer 
wrote:
> Forrest Curo  wrote
>
>> Since switches have so far not been included, is there a way around
>> this?
>>
>> An array of Events?
>>
>> An array of functions, either numbered or associative? How to
>> declare and call such an array?
>>
>
> ChucK doesn't have function pointers or similar, so I've resorted to
> functors
>
> https://github.com/heuermh/lick/blob/master/lick/fn
>
> E.g.
>
> class DoSomething extends Procedure {
>   fun void run() { ... }
> }
> class DoSomethingElse extends Procedure {
>   fun void run() { ... }
> }
>
> DoSomething doSomething;
> DoSomethingElse doSomethingElse;
>
> ArrayList procedures;
> procedures.add(doSomething);
> procedures.add(doSomethingElse);
>
> while (true) {
>   procedures.sample() $ Procedure @=> Procedure procedure;
>   procedure.run();
>   1::second => now;
> }
>
>
> Yeah, it ain't pretty.
>
>    michael
>
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>
>
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--
Spencer Salazar
Doctoral Candidate
Center for Computer Research in Music and Acoustics
Stanford University
spencer@ccrma.stanford.edu
+1 831.277.4654
https://ccrma.stanford.edu/~spencer/
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