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add offset to basic rhythmic functions

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This commit is contained in:
Raphaël Forment
2023-10-13 18:53:38 +02:00
parent 2edbb577d0
commit 356e3c8dd0
2 changed files with 65 additions and 18 deletions
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46
src/API.ts
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@ -1259,33 +1259,55 @@ export class UserAPI {
// Time Filters
// =============================================================
public beat = (...n: number[]): boolean => {
const results: boolean[] = n.map(
public beat = (n: number | number[] = 1, nudge: number = 0): boolean => {
/**
* Determine if the current pulse is on a specified beat, with optional nudge.
* @param n Single beat multiplier or array of beat multipliers
* @param nudge Offset in pulses to nudge the beat forward or backward
* @returns True if the current pulse is on one of the specified beats (considering nudge), false otherwise
*/
const nArray = Array.isArray(n) ? n : [n];
const results: boolean[] = nArray.map(
(value) =>
this.app.clock.pulses_since_origin % Math.floor(value * this.ppqn()) ===
0
(this.app.clock.pulses_since_origin - Math.floor(nudge * this.ppqn())) % Math.floor(value * this.ppqn()) === 0
);
return results.some((value) => value === true);
};
b = this.beat;
public bar = (...n: number[]): boolean => {
const results: boolean[] = n.map(
public bar = (n: number | number[] = 1, nudge: number = 0): boolean => {
/**
* Determine if the current pulse is on a specified bar, with optional nudge.
* @param n Single bar multiplier or array of bar multipliers
* @param nudge Offset in bars to nudge the bar forward or backward
* @returns True if the current pulse is on one of the specified bars (considering nudge), false otherwise
*/
const nArray = Array.isArray(n) ? n : [n];
const barLength = this.app.clock.time_signature[1] * this.ppqn();
const nudgeInPulses = Math.floor(nudge * barLength);
const results: boolean[] = nArray.map(
(value) =>
this.app.clock.pulses_since_origin % Math.floor((value * this.ppqn()) * this.app.clock.time_signature[1]) ===
0
(this.app.clock.pulses_since_origin - nudgeInPulses) % Math.floor(value * barLength) === 0
);
return results.some((value) => value === true);
};
B = this.bar;
public pulse = (...n: number[]): boolean => {
const results: boolean[] = n.map(
(value) => this.app.clock.pulses_since_origin % value === 0
public pulse = (n: number | number[] = 1, nudge: number = 0): boolean => {
/**
* Determine if the current pulse is on a specified pulse count, with optional nudge.
* @param n Single pulse count or array of pulse counts
* @param nudge Offset in pulses to nudge the pulse forward or backward
* @returns True if the current pulse is on one of the specified pulse counts (considering nudge), false otherwise
*/
const nArray = Array.isArray(n) ? n : [n];
const results: boolean[] = nArray.map(
(value) => (this.app.clock.pulses_since_origin - nudge) % value === 0
);
return results.some((value) => value === true);
};
p = this.pulse;
// =============================================================
// Modulo based time filters