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path: root/src/lib/kalimba.js
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import * as Tone from "tone";
import { choice } from "./util";
import output from "./output";

const player_count = 4;
let player_index = 0;

const samples = [
  { root: 226, fn: "samples/380737__cabled-mess__sansula-01-a-raw.mp3" },
  { root: 267, fn: "samples/380736__cabled-mess__sansula-02-c-raw.mp3" },
  { root: 340, fn: "samples/380735__cabled-mess__sansula-03-e-raw.mp3" },
  { root: 452, fn: "samples/380733__cabled-mess__sansula-06-a-02-raw.mp3" },
  //  { root: 507, fn: 'samples/380734__cabled-mess__sansula-07-b-h-raw.wav', },
  //  { root: 535, fn: 'samples/380731__cabled-mess__sansula-08-c-raw.wav', },
  //  { root: 671, fn: 'samples/380732__cabled-mess__sansula-09-e-raw.wav', },
];

samples.forEach((sample) => {
  sample.players = [];
  sample.index = -1;
  for (let i = 0; i < player_count; i++) {
    let fn = sample.fn;
    if (window.location.href.match(/asdf.us/)) {
      fn = "//asdf.us/kalimba/" + fn;
    }
    let player = new Tone.Player({
      url: fn,
      retrigger: true,
      playbackRate: 1,
    });
    player.connect(output);
    sample.players.push(player);
  }
});

function play(freq, time) {
  const best = choice(samples);
  best.index = (best.index + 1) % player_count;

  const player = best.players[best.index];
  player.playbackRate = freq / best.root;
  player.start(time || 0);
}

function pause() {
  // no-op
}

export default { play, pause };