Adding docstrings to clock
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55
src/Clock.ts
55
src/Clock.ts
@ -4,6 +4,13 @@ import TransportProcessor from './TransportProcessor?url';
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import { Editor } from './main';
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export interface TimePosition {
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/**
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* A position in time.
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*
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* @param bar - The bar number
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* @param beat - The beat number
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* @param pulse - The pulse number
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*/
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bar: number
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beat: number
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pulse: number
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@ -11,7 +18,20 @@ export interface TimePosition {
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export class Clock {
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evaluations: number
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/**
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* The Clock Class is responsible for keeping track of the current time.
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* It is also responsible for starting and stopping the Clock TransportNode.
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*
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* @param app - The main application instance
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* @param ctx - The current AudioContext used by app
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* @param transportNode - The TransportNode helper
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* @param bpm - The current beats per minute value
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* @param time_signature - The time signature
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* @param time_position - The current time position
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* @param ppqn - The pulses per quarter note
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* @param tick - The current tick since origin
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*/
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ctx: AudioContext
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transportNode: TransportNode
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bpm: number
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@ -27,7 +47,6 @@ export class Clock {
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this.bpm = 120;
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this.time_signature = [4, 4];
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this.ppqn = 48;
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this.evaluations = 0;
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ctx.audioWorklet.addModule(TransportProcessor).then((e) => {
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this.transportNode = new TransportNode(ctx, {}, this.app);
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this.transportNode.connect(ctx.destination);
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@ -38,19 +57,32 @@ export class Clock {
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})
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}
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get beats_per_bar(): number { return this.time_signature[0]; }
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get beats_per_bar(): number {
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/**
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* Returns the number of beats per bar.
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*/
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return this.time_signature[0];
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}
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get pulse_duration(): number {
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/**
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* Returns the duration of a pulse in seconds.
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*/
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return 60 / this.bpm / this.ppqn;
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}
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public convertPulseToSecond(n: number): number {
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/**
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* Converts a pulse to a second.
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*/
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return n * this.pulse_duration
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}
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start(): void {
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// Check if the clock is already running
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/**
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* Starts the TransportNode (starts the clock).
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*/
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if (this.transportNode?.state === 'running') {
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console.log('Already started')
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} else {
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@ -59,6 +91,17 @@ export class Clock {
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}
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}
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pause = (): void => this.transportNode?.pause();
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stop = (): void => this.transportNode?.stop();
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pause(): void {
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/**
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* Pauses the TransportNode (pauses the clock).
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*/
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this.transportNode?.pause();
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}
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stop(): void {
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/**
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* Stops the TransportNode (stops the clock).
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*/
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this.transportNode?.stop();
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}
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}
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