Re: [chuck-users] Fwd: hotswapping UGens

*shakes fist* !!! On Wed, Jan 21, 2009 at 12:54 PM, Kassen wrote:

Dear all,

I just noticed that I accidentally send this to the DEV list instead of the users one. That was of course a mistake. I hope this didn't bother anyone, I'll try to pay more attention on the future.

Sorry, Kas.

---------- Forwarded message ---------- From: Kassen Date: 2009/1/21 Subject: hotswapping UGens To: ChucK Developer Mailing List

Fellow ChucKists,

Inspired by Scott's explanation of casting I thought I'd try a new trick that may be quite interesting for livecoding.

first run this file; ----------------------------- new UGen @=> Foo.instrument; public class Foo { static UGen @instrument; spork ~attach();

fun void attach() { while(1) { if(!instrument.isConnectedTo( dac )) instrument => dac; second => now; } } }

Foo foo; new Sitar @=> foo.instrument;

//your melody goes here while(second => now) 1 => (foo.instrument $ Sitar).noteOn; --------------------------------------------

Then run this to hot-swap the UGen while the original code runs;

-------------- new Shakers @=> Foo.instrument; -----------------------

Sadly this does need that "attach" function as assignment breaks the link to the dac. I'm not sure I feel that's desirable behaviour but at least we can now hotswap UGens without crashing. I don't think I succeeded in that before.

Yours, Kas.

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