29 lines
889 B
TypeScript
29 lines
889 B
TypeScript
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/**
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* useShakeToShuffle — accelerometer-based shake detection
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* Triggers callback when device is shaken hard enough
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*/
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import { useEffect, useRef } from 'react';
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import { Accelerometer } from 'expo-sensors';
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import * as Haptics from 'expo-haptics';
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const SHAKE_THRESHOLD = 2.2;
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const SHAKE_COOLDOWN = 1500; // ms
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export function useShakeToShuffle(onShake: () => void) {
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const lastShake = useRef(0);
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useEffect(() => {
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Accelerometer.setUpdateInterval(100);
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const sub = Accelerometer.addListener(({ x, y, z }) => {
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const acc = Math.sqrt(x * x + y * y + z * z);
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const now = Date.now();
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if (acc > SHAKE_THRESHOLD && now - lastShake.current > SHAKE_COOLDOWN) {
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lastShake.current = now;
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Haptics.notificationAsync(Haptics.NotificationFeedbackType.Success);
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onShake();
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}
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});
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return () => sub.remove();
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}, [onShake]);
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}
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