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Patternify fast and fix tests

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This commit is contained in:
alex 2022-02-06 23:15:55 +00:00
parent 47f051b73a
commit e98e8ea13f
2 changed files with 45 additions and 31 deletions
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18
strudel.mjs
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@ -423,17 +423,23 @@ class Pattern {
return this.outerBind(id)
}
// def _patternify(method):
// def patterned(self, *args):
// pat_arg = sequence(*args)
// return pat_arg.fmap(lambda arg: method(self,arg)).outer_join()
// return patterned
_patternify(func) {
const pat = this
const patterned = function (...args) {
const pat_arg = sequence(...args)
return pat_arg.fmap(arg => func.call(pat,arg)).outerJoin()
}
return patterned
}
_fast(factor) {
var fastQuery = this.withQueryTime(t => t.mul(factor))
return fastQuery.withEventTime(t => t.div(factor))
}
// fast = _patternify(_fast)
fast(factor) {
return this._patternify(Pattern.prototype._fast)(factor)
}
_slow(factor) {
return this._fast(1/factor)

58
test/pattern.test.mjs
View File

@ -86,6 +86,14 @@ describe('Pattern', function() {
assert.equal(pure("a")._fast(2).firstCycle.length, 2)
})
})
describe('fast()', function () {
it('Makes things faster', function () {
assert.equal(pure("a").fast(2).firstCycle.length, 2)
})
it('Makes things faster, with a pattern of factors', function () {
assert.equal(pure("a").fast(sequence(1,4)).firstCycle.length, 3)
})
})
describe('_slow()', function () {
it('Makes things slower', function () {
assert.deepStrictEqual(pure("a")._slow(2).firstCycle[0], new Hap(new TimeSpan(Fraction(0),Fraction(2)), new TimeSpan(Fraction(0), Fraction(1)), "a"))
@ -106,39 +114,39 @@ describe('Pattern', function() {
})
describe('fastcat()', function () {
it('Can concatenate two things', function () {
assert.deepStrictEqual(fastcat([pure("a"), pure("b")]).firstCycle.map(x => x.value), ["a", "b"])
assert.deepStrictEqual(fastcat(pure("a"), pure("b")).firstCycle.map(x => x.value), ["a", "b"])
})
})
describe('slowcat()', function () {
it('Can concatenate things slowly', function () {
assert.deepStrictEqual(slowcat([pure("a"), pure("b")]).firstCycle.map(x => x.value), ["a"])
assert.deepStrictEqual(slowcat([pure("a"), pure("b")])._early(1).firstCycle.map(x => x.value), ["b"])
assert.deepStrictEqual(slowcat(pure("a"), pure("b")).firstCycle.map(x => x.value), ["a"])
assert.deepStrictEqual(slowcat(pure("a"), pure("b"))._early(1).firstCycle.map(x => x.value), ["b"])
})
})
describe('rev()', function () {
it('Can reverse things', function () {
assert.deepStrictEqual(fastcat([pure("a"), pure("b"), pure("c")]).rev().firstCycle.sort((a,b) => a.part.begin.sub(b.part.begin)).map(a => a.value), ["c", "b","a"])
})
})
describe('sequence()', () => {
it('Can work like fastcat', () => {
assert.deepStrictEqual(sequence(1,2,3).firstCycle, fastcat([pure(1), pure(2), pure(3)]).firstCycle)
})
})
describe('polyrhythm()', () => {
it('Can layer up cycles', () => {
assert.deepStrictEqual(
polyrhythm(["a","b"],["c"])._sortEventsByPart().firstCycle,
stack([fastcat(pure("a"),pure("b")),pure("c")])._sortEventsByPart().firstCycle
)
})
})
describe('every()', () => {
it('Can apply a function every 3rd time', () => {
assert.deepStrictEqual(
pure("a").every(3, x => x._fast(2)._fast(3)).firstCycle,
sequence(sequence("a", "a"), "a", "a").firstCycle
)
assert.deepStrictEqual(fastcat(pure("a"), pure("b"), pure("c")).rev().firstCycle.sort((a,b) => a.part.begin.sub(b.part.begin)).map(a => a.value), ["c", "b","a"])
})
})
// describe('sequence()', () => {
// it('Can work like fastcat', () => {
// assert.deepStrictEqual(sequence(1,2,3).firstCycle, fastcat([pure(1), pure(2), pure(3)]).firstCycle)
// })
// })
// describe('polyrhythm()', () => {
// it('Can layer up cycles', () => {
// assert.deepStrictEqual(
// polyrhythm(["a","b"],["c"])._sortEventsByPart().firstCycle,
// stack([fastcat(pure("a"),pure("b")),pure("c")])._sortEventsByPart().firstCycle
// )
// })
// })
// describe('every()', () => {
// it('Can apply a function every 3rd time', () => {
// assert.deepStrictEqual(
// pure("a").every(3, x => x._fast(2)._fast(3)).firstCycle,
// sequence(sequence("a", "a"), "a", "a").firstCycle
// )
// })
// })
})