js摇一摇

let lastX, lastY, lastZ;
let shakeThreshold = 800; // 摇晃阈值
let lastShake = 0;
const shakeInterval = 1000; // 防止连续触发

window.addEventListener('devicemotion', (event) => {
    const { x, y, z } = event.accelerationIncludingGravity;

    if (lastX !== undefined && lastY !== undefined && lastZ !== undefined) {
        const deltaX = Math.abs(x - lastX);
        const deltaY = Math.abs(y - lastY);
        const deltaZ = Math.abs(z - lastZ);

        if (deltaX + deltaY + deltaZ > shakeThreshold) {
            const now = new Date().getTime();
            if (now - lastShake > shakeInterval) {
                alert('摇一摇成功！');
                lastShake = now;
            }
        }
    }

    lastX = x;
    lastY = y;
    lastZ = z;
});