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add lookaheadCycles to fix pianoroll

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This commit is contained in:
Felix Roos 2022-03-12 21:58:17 +01:00
parent ffd6ab2cc9
commit 92937fa72e
2 changed files with 24 additions and 20 deletions
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12
repl/src/draw.mjs
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@ -14,7 +14,7 @@ export const getDrawContext = (id = 'test-canvas') => {
return canvas.getContext('2d');
};
Pattern.prototype.draw = function (callback, queryDuration) {
Pattern.prototype.draw = function (callback, cycleSpan, lookaheadCycles = 1) {
if (window.strudelAnimation) {
cancelAnimationFrame(window.strudelAnimation);
}
@ -23,16 +23,16 @@ Pattern.prototype.draw = function (callback, queryDuration) {
events = [];
const animate = (time) => {
const t = Tone.getTransport().seconds;
if (queryDuration) {
const currentCycle = Math.floor(t / queryDuration);
if (cycleSpan) {
const currentCycle = Math.floor(t / cycleSpan);
if (cycle !== currentCycle) {
cycle = currentCycle;
const begin = currentCycle * queryDuration;
const end = (currentCycle + 1) * queryDuration;
const begin = currentCycle * cycleSpan;
const end = (currentCycle + lookaheadCycles) * cycleSpan;
events = this.add(0).query(new State(new TimeSpan(begin, end)));
}
}
callback(ctx, events, t, queryDuration, time);
callback(ctx, events, t, cycleSpan, time);
window.strudelAnimation = requestAnimationFrame(animate);
};
requestAnimationFrame(animate);