90 lines
1.4 KiB
Text
90 lines
1.4 KiB
Text
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#lang scribble/manual
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@(require (for-label racket))
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@title{Plazy}
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instantiate new patterns from a function@section{related}
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Classes/PlazyEnvir, Classes/PlazyEnvirN, Classes/Pfunc
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@section{categories}
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Streams-Patterns-Events>Patterns>Function
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@section{description}
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Plazy evaluates a function that returns a pattern and embeds it in a stream.
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@section{ClassMethods}
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@section{method}
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new
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@section{argument}
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func
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A link::Classes/Function:: that returns a pattern or any other valid pattern input.
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@section{Examples}
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@racketblock[
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(
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a = Plazy({
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var x, y;
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x = Array.series(rrand(2, 4), [1, 100].choose, 1);
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Pshuf(x,1);
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});
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x = Pn(a, inf).asStream;
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30.do({ x.next.postln });
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)
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//Plazy used to produce a sequence of pitches:
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(
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SynthDef(\help_sinegrain,
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{ arg out=0, freq=440, sustain=0.05;
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var env;
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env = EnvGen.kr(Env.perc(0.01, sustain, 0.2), doneAction: Done.freeSelf);
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Out.ar(out, SinOsc.ar(freq, 0, env))
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}).add;
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)
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(
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a = Plazy({
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var x, y;
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x = Array.series(rrand(2, 4), [1, 5].choose, 1);
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x.put(x.size.rand, 8+0.1.rand2);
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Pseq(x,1);
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});
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x = Pn(a, inf).asStream;
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Routine({
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loop({
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Synth(\help_sinegrain, [\freq, (x.next*5+70).midicps]);
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0.13.wait;
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})
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}).play;
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)
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// using event streams
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(
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a = Plazy({
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var x, y;
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x = Array.series(rrand(2, 4), [1, 5].choose, 1);
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x.put(x.size.rand, 8+0.1.rand2);
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Pbind(
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\instrument, \help_sinegrain,
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\dur, 0.12,
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\degree, Pseq(x, 2)
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)
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});
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Pn(a, inf).play;
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)
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::
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]
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