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sequence generated when key is held down until running = false
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@sjcobb
sjcobb committed Oct 25, 2019
1 parent 1db3c3b commit 3330d80
Showing 1 changed file with 64 additions and 82 deletions.
146 changes: 64 additions & 82 deletions src/js/Input.js
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Original file line number Diff line number Diff line change
Expand Up @@ -77,6 +77,7 @@ const TEMPO_MIDI_CONTROLLER = 20; // Control changes for tempo for this controll
const SEED_DEFAULT = [{ note: 60, time: Tone.now() }];
let currentSeed = [];
let stopCurrentSequenceGenerator;
let resetState; // is this needed??

let enabledWebMidi = false;
WebMidi.enable(err => {
Expand Down Expand Up @@ -203,6 +204,7 @@ function updateChord({ add = null, remove = null }) {
// https://lodash.com/docs/2.4.2#some -> returns as soon as it finds a passing value
if (remove && _.some(currentSeed, { note: remove })) {
_.remove(currentSeed, { note: remove });
// console.log('(updateChord) REMOVE -> currentSeed: ', currentSeed);
}

if (stopCurrentSequenceGenerator) {
Expand All @@ -212,7 +214,7 @@ function updateChord({ add = null, remove = null }) {

if (currentSeed.length && !stopCurrentSequenceGenerator) {
resetState = true;
console.log('(updateChord) !stopCurrentSequenceGenerator -> currentSeed: ', currentSeed);
// console.log('(updateChord) !stopCurrentSequenceGenerator -> currentSeed: ', currentSeed);
stopCurrentSequenceGenerator = startSequenceGenerator(
_.cloneDeep(currentSeed)
);
Expand All @@ -222,7 +224,7 @@ function updateChord({ add = null, remove = null }) {
let humanKeyAdds = [],
humanKeyRemovals = [];
function humanKeyDown(note, velocity = 0.7) {
// if (note < MIN_NOTE || note > MAX_NOTE) return;
if (note < MIN_NOTE || note > MAX_NOTE) return;

let tonalNote = Tonal.Note.fromMidi(note);
let tonalFreq = Tonal.Note.midiToFreq(note);
Expand All @@ -245,30 +247,26 @@ function humanKeyUp(note) {
}

function machineKeyDown(note = 60, time = 0) {
// console.log('machineKeyDown -> note: ', note);
// console.log('machineKeyDown -> time: ', time);
// if (note < MIN_NOTE || note > MAX_NOTE) return;
// console.log('(machineKeyDown) -> note: ', note);
// console.log('(machineKeyDown) -> time: ', time);
if (note < MIN_NOTE || note > MAX_NOTE) return;

let tonalNote = Tonal.Note.fromMidi(note);
let instrMapped = getInstrByInputNote(tonalNote);
if (instrMapped === undefined) {
const undefNoteArr = note.split('');
note = undefNoteArr[0] + undefNoteArr[2];
instrMapped = getInstrByInputNote(note);
}
// instrMapped.color = '#e91e63'; // red (nerual melody autocompletion)
instrMapped.color = '#ED4A82'; // pink
// instrMapped.color = '#f9bb2d'; // orange (ai duet original)

// if (instrMapped === undefined && note) {
// console.log('(machineKeyDown) UNDEF -> note: ', note);
// const undefNoteArr = note.split(''); // ERR: note.split is not a function
// note = undefNoteArr[0] + undefNoteArr[2];
// instrMapped = getInstrByInputNote(note);
// }

instrMapped.color = '#ED4A82'; // pink
physics.addBody(true, globals.dropPosX, instrMapped);

// if (note < MIN_NOTE || note > MAX_NOTE) return;
}

function buildNoteSequence(seed) {
console.log('buildNoteSequence -> seed: ', seed);
// seed = SEED_DEFAULT

// console.log('(buildNoteSequence) -> seed: ', seed);
const seqOpts = {
ticksPerQuarter: 220,
totalTime: seed.length * 0.5,
Expand Down Expand Up @@ -312,6 +310,16 @@ function getSeedIntervals(seed) {
return intervals;
}

function getSequenceLaunchWaitTime(seed) {
if (seed.length <= 1) {
return 1;
}
let intervals = getSeedIntervals(seed);
let maxInterval = _.max(intervals);
return maxInterval * 2;
}


function getSequencePlayIntervalTime(seed = SEED_DEFAULT) {
if (seed.length <= 1) {
return Tone.Time('8n').toSeconds();
Expand All @@ -336,102 +344,76 @@ function seqToTickArray(seq) {
);
}

function detectChord(seed) {
// console.log('detectChord -> seed: ', seed);
const notes = seed.notes.map(n => Tonal.Note.pc(Tonal.Note.fromMidi(n.note))).sort();
function detectChord(notes) {
notes = notes.map(n => Tonal.Note.pc(Tonal.Note.fromMidi(n.note))).sort();
return Tonal.PcSet.modes(notes)
.map((mode, i) => {
const tonic = Tonal.Note.name(notes[i]);
const names = Tonal.Dictionary.chord.names(mode);
return names.length ? tonic + names[0] : null;
const tonic = Tonal.Note.name(notes[i]);
const names = Tonal.Dictionary.chord.names(mode);
return names.length ? tonic + names[0] : null;
})
.filter(x => x);
}

// let running = false;
let running;
let consumerId;
function startSequenceGenerator(seed = []) {
// console.log('startSequenceGenerator -> seed: ', seed);

running = true;
// let lastGenerationTask = Promise.resolve(); // TODO: fix Promise vs async/await
let lastGenerationTask;

let launchWaitTime = 1; // 1
let playIntervalTime = getSequencePlayIntervalTime(seed); // 0.25

// let generatedSequence =
// Math.random() < 0.7 ? _.clone(seed.notes.map(n => n.pitch)) : [];

let chord = 'CM';
if (seed.notes) {
let chords = detectChord(seed);
chord = _.first(chords) || 'CM';
}
function startSequenceGenerator(seed) {
// console.log('(startSequenceGenerator) -> seed: ', seed);
let running = true;
let lastGenerationTask = Promise.resolve(); // TODO: fix Promise vs async/await

let chords = detectChord(seed);
let chord = _.first(chords) || 'CM';
let seedSeq = buildNoteSequence(seed);

let generatedSequence = Math.random() < 0.7 ? _.clone(seedSeq.notes.map(n => n.pitch)) : []; // why random???
// let generatedSequence = seedSeq.notes.map(n => n.pitch); //PREV

let generationIntervalTime = playIntervalTime / 2; // needed?
generationIntervalTime = 0;
let generatedSequence =
Math.random() < 0.7 ? _.clone(seedSeq.notes.map(n => n.pitch)) : [];
console.log('(startSequenceGenerator) -> generatedSequence: ', generatedSequence);

let launchWaitTime = getSequenceLaunchWaitTime(seed); // returns 1 or 0.3
let playIntervalTime = getSequencePlayIntervalTime(seed); // 0.25
let generationIntervalTime = playIntervalTime / 2;

function generateNext() {
if (!running) return;

if (generatedSequence.length >= 0) {
rnn.continueSequence(seedSeq, 20, temperature, [chord]).then(genSeq => {
// generatedSequence = generatedSequence.concat(seqToTickArray(genSeq));
// generatedSequence = Math.random() < 0.7 ? _.clone(seedSeq.notes.map(n => n.pitch)) : [];

generatedSequence = _.clone(seedSeq.notes.map(n => n.pitch));

// console.log('generateNext -> generatedSequence: ', generatedSequence);
if (generatedSequence.length < 10) {
lastGenerationTask = rnn
.continueSequence(seedSeq, 20, temperature, [chord])
.then(genSeq => {
generatedSequence = generatedSequence.concat(
genSeq.notes.map(n => n.pitch)
);
console.log('(generateNext) .then -> generatedSequence: ', generatedSequence);
setTimeout(generateNext, generationIntervalTime * 1000);
});
} else {
console.log('(generateNext) ELSE -> generatedSequence: ', generatedSequence);
setTimeout(generateNext, generationIntervalTime * 1000);
}
}

function consumeNext(time) {
// console.log('consumeNext -> time: ', time);
// console.log('consumeNext -> generatedSequence: ', generatedSequence);
console.log('consumeNext -> time: ', time);
if (generatedSequence.length) {
console.log('consumeNext -> generatedSequence: ', generatedSequence);
let note = generatedSequence.shift();
if (note > 0) {
machineKeyDown(note, time);
}
}
}

// setTimeout(generateNext, launchWaitTime * 1000);
// generateNext();
// let consumerId = Tone.Transport.scheduleRepeat(
consumerId = Tone.Transport.scheduleRepeat(
setTimeout(generateNext, launchWaitTime * 1000);

let consumerId = Tone.Transport.scheduleRepeat(
consumeNext,
playIntervalTime,
Tone.Transport.seconds + launchWaitTime
);

setInterval(() => {
console.log('... ... ... ... CLEARED ... ... ... ...')
// generatedSequence = [];
// currentSeed = []; // TODO: fix duplicate currentSeed never clearing so same notes always start generatedSequence

humanKeyRemovals = [];
}, 12000);

return () => {
clearTransport();
}
}

function clearTransport() {
running = false;
if (consumerId) {
Tone.Transport.clear(consumerId);
}
running = false;
Tone.Transport.clear(consumerId);
};
}

function generateDummySequence(seed = SEED_DEFAULT) {
Expand Down

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