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29 <p class="p1"><span class="s1"><b>TaskProxy<span class="Apple-tab-span"> </span></b></span><span class="s2"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span></span><b>event stream reference</b></p>
30 <p class="p2"><br></p>
31 <p class="p1">superclass: PatternProxy</p>
32 <p class="p3"><br></p>
33 <p class="p1">Keeps a reference to a task (time pattern) that can be replaced while playing.</p>
34 <p class="p1">It plays on when the old stream ended and a new stream is set and schedules the changes to the beat.</p>
35 <p class="p3"><br></p>
36 <p class="p3"><br></p>
37 <p class="p1">related: <a href="Tdef.html"><span class="s3">Tdef</span></a></p>
38 <p class="p3"><br></p>
39 <p class="p3"><br></p>
40 <p class="p1"><b><span class="Apple-tab-span"> </span>*new(source)</b></p>
41 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>create a new instance with a function (the source).</p>
42 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>the source should be a <b><i>routine function</i></b> (see <b>Tdef</b>) or a <b><i>pattern</i></b> of time values.</p>
43 <p class="p3"><br></p>
44 <p class="p1"><span class="Apple-tab-span"> </span><b>*default</b></p>
45 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>a default source, if none is given. the default is a loop that does nothing with a 1.0 beat wait time</p>
46 <p class="p3"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span></p>
47 <p class="p3"><span class="Apple-tab-span"> </span></p>
48 <p class="p1"><b><span class="Apple-tab-span"> </span>source_(obj)</b></p>
49 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>set the source. If a quantization is given, schedule this change to the next beat</p>
50 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>the object is a <b><i>routine function, </i></b>which is evaluated in a protected way, so that</p>
51 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>failure will notify the proxy that it has stopped.<span class="Apple-converted-space"> </span></p>
52 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>The object can also be a <b><i>pattern</i></b> of time values.</p>
53 <p class="p3"><br></p>
54 <p class="p1"><span class="Apple-tab-span"> </span><b>clear</b><span class="Apple-tab-span"> </span>set the source to nil</p>
55 <p class="p3"><span class="Apple-tab-span"> </span></p>
56 <p class="p1"><b><span class="Apple-tab-span"> </span>quant_(beats)</b></p>
57 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>set the quantization value. can be a pair [quant, offset]</p>
58 <p class="p3"><span class="Apple-tab-span"> </span></p>
59 <p class="p1"><b><span class="Apple-tab-span"> </span>quant</b></p>
60 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>get the quantization value</p>
61 <p class="p3"><span class="Apple-tab-span"> </span></p>
62 <p class="p1"><b><span class="Apple-tab-span"> </span>*defaultQuant_(beats)</b></p>
63 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>set the default quantization value for the class. (default: 1.0)</p>
64 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>can be a pair [quant, offset]</p>
65 <p class="p3"><span class="Apple-tab-span"> </span></p>
66 <p class="p1"><span class="Apple-tab-span"> </span><b>condition_(func)</b></p>
67 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>provide a condition under which the pattern is switched when a new one is inserted.</p>
68 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>the stream value and a count is passed into the function.</p>
69 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>the methods <b>count_(n) </b>simply counts up to n and switches the pattern then</p>
70 <p class="p3"><span class="Apple-tab-span"> </span></p>
71 <p class="p1"><span class="Apple-tab-span"> </span><b>reset</b><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span></p>
72 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>switch the pattern immediately. (stuck conditions can be subverted by this)</p>
73 <p class="p3"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span></p>
74 <p class="p1"><span class="Apple-tab-span"> </span><b>envir_(event)</b></p>
75 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>provide a default environment for the proxy.<span class="Apple-converted-space"> </span></p>
76 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>If given,<span class="Apple-converted-space">  </span>it is used as an environment for the routine<span class="Apple-converted-space"> </span></p>
77 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>function. When set for the first time, the routine pattern is rebuilt.</p>
78 <p class="p3"><span class="Apple-tab-span"> </span></p>
79 <p class="p1"><span class="Apple-tab-span"> </span><b>set(key, val, key2, val2, ...)</b></p>
80 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>set arguments in the environment.<span class="Apple-converted-space"> </span></p>
81 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>If there is none, it is created and the routine pattern is rebuilt.</p>
82 <p class="p3"><span class="Apple-tab-span"> </span></p>
83 <p class="p1"><span class="Apple-tab-span"> </span><b>endless</b></p>
84 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>returns a Proutine that plays the proxy endlessly, replacing <b>nil</b> with a <b>default</b></p>
85 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>value (1 s. wait time). This allows to create streams that idle on until a new pattern is inserted.</p>
86 <p class="p3"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span></p>
87 <p class="p3"><br></p>
88 <p class="p3"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span></p>
89 <p class="p3"><br></p>
90 <p class="p1"><b><i>a) using it as stream reference</i></b></p>
91 <p class="p3"><span class="Apple-tab-span"> </span></p>
92 <p class="p1"><span class="Apple-tab-span"> </span><b>source_<span class="Apple-tab-span"> </span></b></p>
93 <p class="p1"><b><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span></b>set the routine function / pattern (internally done by *new(key, obj)</p>
94 <p class="p3"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span></p>
95 <p class="p3"><span class="Apple-tab-span"> </span></p>
96 <p class="p1"><span class="Apple-tab-span"> </span><b>embedInStream(inval)</b></p>
97 <p class="p1"><b><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span></b>just like any stream, embeds itself in stream</p>
98 <p class="p3"><span class="Apple-tab-span"> </span></p>
99 <p class="p3"><span class="Apple-tab-span"> </span></p>
100 <p class="p3"><span class="Apple-tab-span"> </span></p>
101 <p class="p1"><b><i>b) using it as EventStreamPlayer</i></b></p>
102 <p class="p3"><br></p>
103 <p class="p1"><span class="Apple-tab-span"> </span><b>play(clock, protoEvent, quant)</b></p>
104 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>starts the TaskProxy and creates a player.<span class="Apple-converted-space"> </span></p>
105 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>if you want to play multiple instances, use <b>.playOnce(clock, protoEvent, quant)</b></p>
106 <p class="p1"><b><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>quant </b>can be an array of [quant, phase]</p>
107 <p class="p3"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span></p>
108 <p class="p1"><span class="Apple-tab-span"> </span><b>stop</b></p>
109 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>stops the player</p>
110 <p class="p3"><span class="Apple-tab-span"> </span></p>
111 <p class="p1"><span class="Apple-tab-span"> </span><b>player</b><span class="Apple-tab-span"> </span></p>
112 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>the current player (if the TaskProxy is simply used in other streams this is nil)</p>
113 <p class="p3"><br></p>
114 <p class="p1"><span class="Apple-tab-span"> </span><b>pause / resume / reset / mute / unmute</b></p>
115 <p class="p1"><b><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span></b>perform player method<span class="Apple-converted-space"> </span></p>
116 <p class="p3"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span></p>
117 <p class="p1"><span class="Apple-tab-span"> </span><b>isPlaying</b><span class="Apple-converted-space"> </span></p>
118 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>returns true if TaskProxy is running.</p>
119 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>if a TaskProxy is playing and its stream ends, it will schedule a stream for playing<span class="Apple-converted-space"> </span></p>
120 <p class="p1"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>as soon as a new one is assigned to it.</p>
121 <p class="p3"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span></p>
122 <p class="p3"><span class="Apple-tab-span"> </span></p>
123 <p class="p3"><br></p>
124 <p class="p2"><br></p>
125 <p class="p2"><br></p>
126 <p class="p2"><br></p>
127 <p class="p1"><b><i>a) using TaskProxy as a player</i></b></p>
128 <p class="p2"><br></p>
129 <p class="p2"><br></p>
130 <p class="p4">// create an empty Tdef and play it.</p>
131 <p class="p5">x = <span class="s4">TaskProxy</span>.new;</p>
132 <p class="p5">x.play;<span class="Apple-converted-space"> </span></p>
133 <p class="p2"><br></p>
134 <p class="p2"><br></p>
135 <p class="p5">x.source =<span class="Apple-converted-space">  </span>{ loop { <span class="s5">"ggggggggggggggggg9999ggg999ggg999gg"</span>.scramble.postln; 0.5.wait; } };</p>
136 <p class="p2"><br></p>
137 <p class="p2"><br></p>
138 <p class="p5">x.source = { loop { <span class="s5">"---------////----------------------"</span>.scramble.postln; 0.25.wait; } };</p>
139 <p class="p5">x.source = { loop { <span class="s4">thisThread</span>.seconds.postln; 1.wait; } };</p>
140 <p class="p5">x.source = { loop { <span class="s4">thisThread</span>.seconds.postln; 1.01.wait; } };</p>
141 <p class="p2"><br></p>
142 <p class="p5"><span class="s4">TempoClock</span>.default.tempo = 2;</p>
143 <p class="p2"><br></p>
144 <p class="p5">x.source = { <span class="s5">"the end"</span>.postln };</p>
145 <p class="p5">x.source = { <span class="s5">"one more"</span>.postln };</p>
146 <p class="p5">x.source = { 10.do { <span class="s5">"ten more"</span>.scramble.postln; 0.25.wait; } };</p>
147 <p class="p5">x.source = { loop { <span class="s5">"many more"</span>.scramble.postln; 0.25.wait; } };</p>
148 <p class="p2"><br></p>
149 <p class="p5"><span class="s4">TempoClock</span>.default.tempo = 1;</p>
150 <p class="p2"><br></p>
151 <p class="p5">x.stop;</p>
152 <p class="p5">x.play;</p>
153 <p class="p5">x.stop;</p>
154 <p class="p2"><br></p>
155 <p class="p2"><br></p>
156 <p class="p2"><br></p>
157 <p class="p2"><br></p>
158 <p class="p4">// sound example</p>
159 <p class="p2"><br></p>
160 <p class="p5">(</p>
161 <p class="p4">// load a synthdef</p>
162 <p class="p5">s.boot;</p>
163 <p class="p6"><span class="s4">SynthDef</span><span class="s6">(</span>"pdef_grainlet"<span class="s6">,<span class="Apple-converted-space"> </span></span></p>
164 <p class="p5"><span class="Apple-tab-span"> </span>{ <span class="s4">arg</span> out=0, freq=440, sustain=0.05;</p>
165 <p class="p5"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="s4">var</span> env;</p>
166 <p class="p5"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>env = <span class="s4">EnvGen</span>.kr(<span class="s4">Env</span>.perc(0.01, sustain, 0.3), doneAction:2);</p>
167 <p class="p5"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span><span class="s4">Out</span>.ar(out, <span class="s4">SinOsc</span>.ar(freq, 0, env))</p>
168 <p class="p5"><span class="Apple-tab-span"> </span>}).store;</p>
169 <p class="p5">)</p>
170 <p class="p5">x.play;</p>
171 <p class="p2"><br></p>
172 <p class="p5">(</p>
173 <p class="p5">x.source = {<span class="Apple-converted-space"> </span></p>
174 <p class="p5"><span class="Apple-tab-span"> </span>loop {</p>
175 <p class="p5"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>s.sendMsg(<span class="s5">"/s_new"</span>, <span class="s5">"pdef_grainlet"</span>, -1,0,0, <span class="s7">\freq</span>, rrand(600, 640));</p>
176 <p class="p5"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>0.1.wait;</p>
177 <p class="p5"><span class="Apple-tab-span"> </span>}</p>
178 <p class="p5">}</p>
179 <p class="p5">)</p>
180 <p class="p2"><br></p>
181 <p class="p5">(</p>
182 <p class="p5">x.source = {<span class="Apple-converted-space"> </span></p>
183 <p class="p5"><span class="Apple-tab-span"> </span><span class="s4">var</span> x;</p>
184 <p class="p5"><span class="Apple-tab-span"> </span>x = <span class="s4">Pseries</span>(300, 20, 100).loop.asStream;</p>
185 <p class="p5"><span class="Apple-tab-span"> </span>loop {</p>
186 <p class="p5"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>s.sendMsg(<span class="s5">"/s_new"</span>, <span class="s5">"pdef_grainlet"</span>, -1,0,0, <span class="s7">\freq</span>, x.next);</p>
187 <p class="p5"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>0.05.wait;</p>
188 <p class="p5"><span class="Apple-tab-span"> </span>}</p>
189 <p class="p5">}</p>
190 <p class="p5">)</p>
191 <p class="p2"><br></p>
192 <p class="p5">(</p>
193 <p class="p5">x.source = {<span class="Apple-converted-space"> </span></p>
194 <p class="p5"><span class="Apple-tab-span"> </span><span class="s4">var</span> x;</p>
195 <p class="p5"><span class="Apple-tab-span"> </span>x = <span class="s4">Plazy</span> { <span class="s4">Pseries</span>(300 + 300.rand, 10 + 30.rand, 10 + 30.rand) }.loop.asStream;</p>
196 <p class="p5"><span class="Apple-tab-span"> </span>loop {</p>
197 <p class="p5"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>s.sendMsg(<span class="s5">"/s_new"</span>, <span class="s5">"pdef_grainlet"</span>, -1,0,0, <span class="s7">\freq</span>, x.next);</p>
198 <p class="p5"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>0.05.wait;</p>
199 <p class="p5"><span class="Apple-tab-span"> </span>}</p>
200 <p class="p5">}</p>
201 <p class="p5">)</p>
202 <p class="p2"><br></p>
203 <p class="p4">// metronome</p>
204 <p class="p5">(</p>
205 <p class="p7"><span class="s6">y = </span>TaskProxy<span class="s6"> {<span class="Apple-converted-space"> </span></span></p>
206 <p class="p5"><span class="Apple-tab-span"> </span>loop { s.sendMsg(<span class="s5">"/s_new"</span>, <span class="s5">"pdef_grainlet"</span>, -1,0,0, <span class="s7">\freq</span>, 1500); 1.wait; }<span class="Apple-converted-space"> </span></p>
207 <p class="p5">};</p>
208 <p class="p5">y.play;</p>
209 <p class="p5">)</p>
210 <p class="p2"><br></p>
211 <p class="p4">// play ending stream once</p>
212 <p class="p5">(</p>
213 <p class="p5">x.source = {<span class="Apple-converted-space"> </span></p>
214 <p class="p5"><span class="Apple-tab-span"> </span><span class="s4">var</span> x, dt;</p>
215 <p class="p5"><span class="Apple-tab-span"> </span>dt = [0.1, 0.125, 0.05].choose;</p>
216 <p class="p5"><span class="Apple-tab-span"> </span>x = <span class="s4">Plazy</span> { <span class="s4">Pseries</span>(1300 + 300.rand, 110 + 130.rand, 16) }.asStream;</p>
217 <p class="p5"><span class="Apple-tab-span"> </span>x.do { <span class="s4">arg</span> item;</p>
218 <p class="p5"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>s.sendMsg(<span class="s5">"/s_new"</span>, <span class="s5">"pdef_grainlet"</span>, -1,0,0, <span class="s7">\freq</span>, item);</p>
219 <p class="p5"><span class="Apple-tab-span"> </span><span class="Apple-tab-span"> </span>dt.wait;</p>
220 <p class="p5"><span class="Apple-tab-span"> </span>}</p>
221 <p class="p5">}</p>
222 <p class="p5">)</p>
223 <p class="p2"><br></p>
224 <p class="p5">... and so on ...</p>
225 <p class="p2"><br></p>
226 <p class="p5">x.stop;</p>
227 <p class="p5">y.stop;</p>
228 <p class="p2"><br></p>
229 <p class="p2"><br></p>
230 <p class="p2"><br></p>
231 <p class="p2"><br></p>
232 <p class="p1"><b><i>b) embedding TaskProxy into other Tasks / Routines</i></b></p>
233 <p class="p2"><br></p>
234 <p class="p2"><br></p>
235 <p class="p5">(</p>
236 <p class="p5">#a, c = { <span class="s4">TaskProxy</span>.new } ! 2;</p>
237 <p class="p5">a.source = { <span class="s5">"one"</span>.postln; 1.wait; <span class="s5">"two"</span>.postln };</p>
238 <p class="p5">c.source = { <span class="s4">var</span> z; z = <span class="s4">Synth</span>(<span class="s7">\default</span>); 0.5.wait; z.release };</p>
239 <p class="p5">r = <span class="s4">Task</span> {</p>
240 <p class="p6"><span class="s6"><span class="Apple-tab-span"> </span></span>"counting..."<span class="s6">.postln;</span></p>
241 <p class="p5"><span class="Apple-tab-span"> </span>2.wait;</p>
242 <p class="p5"><span class="Apple-tab-span"> </span>a.embedInStream;</p>
243 <p class="p5"><span class="Apple-tab-span"> </span>1.wait;</p>
244 <p class="p5"><span class="Apple-tab-span"> </span>c.embedInStream;</p>
245 <p class="p5"><span class="Apple-tab-span"> </span><span class="s5">"done."</span>.postln;</p>
246 <p class="p5">};</p>
247 <p class="p5">)</p>
248 <p class="p2"><br></p>
249 <p class="p4"><span class="s6">r.play; </span>// play a stream</p>
250 <p class="p2"><br></p>
251 <p class="p5">c.source = { <span class="s4">var</span> z; z = <span class="s4">Synth</span>(<span class="s7">\default</span>, [<span class="s7">\freq</span>, 300]); 1.5.wait; z.release }; <span class="s8">// change the def</span></p>
252 <p class="p2"><br></p>
253 <p class="p5">r.reset;</p>
254 <p class="p5">r.play;</p>
255 <p class="p2"><br></p>
256 <p class="p4">// of course TaskProxies can be used in other Tdefs:</p>
257 <p class="p5">(</p>
258 <p class="p5">b = <span class="s4">TaskProxy</span>.new;</p>
259 <p class="p5">b.source = {</p>
260 <p class="p6"><span class="s6"><span class="Apple-tab-span"> </span></span>"counting..."<span class="s6">.postln;</span></p>
261 <p class="p5"><span class="Apple-tab-span"> </span>2.wait;</p>
262 <p class="p5"><span class="Apple-tab-span"> </span>a.embedInStream;</p>
263 <p class="p5"><span class="Apple-tab-span"> </span>1.wait;</p>
264 <p class="p5"><span class="Apple-tab-span"> </span>c.embedInStream;</p>
265 <p class="p5"><span class="Apple-tab-span"> </span><span class="s5">"done."</span>.postln;</p>
266 <p class="p5">};</p>
267 <p class="p5">)</p>
268 <p class="p5">b.playOnce;</p>
269 <p class="p2"><br></p>
270 <p class="p4">// if one wants to branch off a stream in a separate thread, asStream is used.</p>
271 <p class="p5">(</p>
272 <p class="p7">Routine<span class="s6"> {</span></p>
273 <p class="p5"><span class="Apple-tab-span"> </span>c.asStream.play;</p>
274 <p class="p5"><span class="Apple-tab-span"> </span>0.1.wait;</p>
275 <p class="p5"><span class="Apple-tab-span"> </span>c.asStream.play;</p>
276 <p class="p5"><span class="Apple-tab-span"> </span>0.1.wait;</p>
277 <p class="p5"><span class="Apple-tab-span"> </span>a.asStream.play;</p>
278 <p class="p2"><br></p>
279 <p class="p5">}.play;</p>
280 <p class="p5">)</p>
281 <p class="p2"><br></p>
282 </body>
283 </html>