mirror of
https://github.com/eliasstepanik/strudel-docker.git
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44 lines
2.0 KiB
JavaScript
44 lines
2.0 KiB
JavaScript
/*
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osc.mjs - <short description TODO>
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Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/osc/osc.mjs>
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This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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import OSC from 'osc-js';
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import { Pattern } from '@strudel.cycles/core';
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const comm = new OSC();
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comm.open();
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const latency = 0.1;
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let startedAt = -1;
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/**
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*
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* Sends each hap as an OSC message, which can be picked up by SuperCollider or any other OSC-enabled software.
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*
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* @name osc
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* @memberof Pattern
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* @returns Pattern
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*/
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Pattern.prototype.osc = function () {
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return this._withHap((hap) => {
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const onTrigger = (time, hap, currentTime, cps) => {
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const cycle = hap.wholeOrPart().begin.valueOf();
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const delta = hap.duration.valueOf();
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// time should be audio time of onset
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// currentTime should be current time of audio context (slightly before time)
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if (startedAt < 0) {
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startedAt = Date.now() - currentTime * 1000;
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}
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const controls = Object.assign({}, { cps, cycle, delta }, hap.value);
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const keyvals = Object.entries(controls).flat();
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const ts = Math.floor(startedAt + (time + latency) * 1000);
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const message = new OSC.Message('/dirt/play', ...keyvals);
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const bundle = new OSC.Bundle([message], ts);
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bundle.timestamp(ts); // workaround for https://github.com/adzialocha/osc-js/issues/60
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comm.send(bundle);
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};
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return hap.setContext({ ...hap.context, onTrigger });
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});
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};
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