62 lines
1.6 KiB
TypeScript
62 lines
1.6 KiB
TypeScript
// @ts-ignore
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import { TransportNode } from './TransportNode';
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import { Editor } from './main';
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export interface TimePosition {
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bar: number
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beat: number
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pulse: number
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}
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export class Clock {
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evaluations: number
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transportNode: TransportNode
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bpm: number
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time_signature: number[]
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time_position: TimePosition
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ppqn: number
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tick: number
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constructor(public app: Editor, ctx: AudioContext) {
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this.tick = 0;
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this.time_position = { bar: 0, beat: 0, pulse: 0 }
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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('src/TransportProcessor.js').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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return e
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})
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.catch((e) => {
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console.log('Error loading TransportProcessor.js:', e);
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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 pulse_duration(): number {
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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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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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if (this.transportNode?.state === 'running') {
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console.log('Already started')
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} else {
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this.app.audioContext.resume()
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this.transportNode?.start();
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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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} |