hacklab/strudel
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

attempt at fastGap, with failing test

Browse source
This commit is contained in:
alex 2022-02-09 21:18:53 +00:00
parent c891dda8eb
commit ab2cfdeeec
2 changed files with 39 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

21
strudel.mjs
View file

@ -426,6 +426,27 @@ class Pattern {
return patterned
}
_fastGap (factor) {
// Maybe it's better without this fallback..
// if (factor < 1) {
// // there is no gap.. so maybe revert to _fast?
// return this._fast(factor)
// }
const qf = function(span) {
const cycle = span.begin.sam()
const begin = cycle.add(span.begin.sub(span.cycle).mul(factor).min(1))
const end = cycle.add(span.end.sub(span.cycle).mul(factor).min(1))
return new TimeSpan(begin, end)
}
const ef = function(span) {
const cycle = span.begin.sam()
const begin = cycle.add(span.begin.sub(span.cycle).div(factor).min(1))
const end = cycle.add(span.end.sub(span.cycle).div(factor).min(1))
return new TimeSpan(begin, end)
}
return this.withQuerySpan(qf).withEventSpan(ef)._splitQueries()
}
_fast(factor) {
const fastQuery = this.withQueryTime(t => t.mul(factor))
return fastQuery.withEventTime(t => t.div(factor))