29 lines
725 B
TypeScript
29 lines
725 B
TypeScript
namespace pxsim {
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export class SpeakerState {
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frequency: number;
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ms: number;
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}
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}
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namespace pxsim.music {
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export function playTone(frequency: number, ms: number) {
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const b = board();
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b.speakerState.frequency = frequency;
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b.speakerState.ms = ms;
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runtime.queueDisplayUpdate();
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let cb = getResume();
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AudioContextManager.tone(frequency, 1);
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if (ms <= 0) cb();
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else {
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setTimeout(() => {
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AudioContextManager.stop();
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b.speakerState.frequency = 0;
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b.speakerState.ms = 0;
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runtime.queueDisplayUpdate();
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cb()
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}, ms);
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}
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}
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} |