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Fix chunk, add fastChunk and repeatCycles (#712)

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* Match behaviour of chunk with tidal, add fastChunk for old strudel behaviour. Also adds repeatCycles. fixes #689

* documentation
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Alex McLean 2023-11-01 21:22:33 +00:00 • committed by GitHub
parent 16bb920011
commit 9ceab0f294
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3 changed files with 113 additions and 25 deletions
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19
packages/core/test/pattern.test.mjs
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@ -1003,4 +1003,23 @@ describe('Pattern', () => {
);
});
});
describe('chunk', () => {
it('Processes each cycle of the source pattern multiple times, once for each chunk', () => {
expect(sequence(0, 1, 2, 3).slow(2).chunk(2, add(10)).fast(4).firstCycleValues).toStrictEqual([
10, 1, 0, 11, 12, 3, 2, 13,
]);
});
});
describe('fastChunk', () => {
it('Unlike chunk, cycles of the source pattern proceed cycle-by-cycle', () => {
expect(sequence(0, 1, 2, 3).slow(2).fastChunk(2, add(10)).fast(4).firstCycleValues).toStrictEqual([
10, 1, 2, 13, 10, 1, 2, 13,
]);
});
});
describe('repeatCycles', () => {
it('Repeats each cycle of the source pattern the given number of times', () => {
expect(slowcat(0, 1).repeatCycles(2).fast(6).firstCycleValues).toStrictEqual([0, 0, 1, 1, 0, 0]);
});
});
});