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搖一搖

nbsp acc not func get gravity col list new

<script type="text/javascript">
    var SHAKE_THRESHOLD = 3000;
    var last_update = 0;
    var x = y = z = last_x = last_y = last_z = 0;
    function init() {
        if (window.DeviceMotionEvent) {
            window.addEventListener(‘devicemotion‘, deviceMotionHandler, false);
        } else {
            alert(
‘not support mobile event‘); } } function deviceMotionHandler(eventData) { var acceleration = eventData.accelerationIncludingGravity; var curTime = new Date().getTime(); if ((curTime - last_update) > 100) { var diffTime = curTime - last_update; last_update
= curTime; x = acceleration.x; y = acceleration.y; z = acceleration.z; var speed = Math.abs(x + y + z - last_x - last_y - last_z) / diffTime * 10000; if (speed > SHAKE_THRESHOLD) { alert("搖動了"); } last_x
= x; last_y = y; last_z = z; } } </script>

搖一搖