/**
* @file 摇一摇移 动事件devicemotion(设备运动事件)
* @name devicemotion
* @desc 支持设备移动事件devicemotion(设备运动事件)返回设备有关于加速度和旋转的相关信息。
* 加速度的数据将包含三个轴:x,y和z(x轴横向贯穿手机屏幕或者笔记本键盘,y轴纵向贯穿手机屏幕或笔记本键盘,z轴垂直于手机屏幕或笔记本键盘)
* @import lib/zeptov1.0.js
*/
$(function () {
//摇一摇设置
$.SHAKE = {
SHAKE_THRESHOLD : 2000,
last_x : 0,
last_y : 0,
last_z : 0,
lastUpdate : 0,
sharkTimer : null
};
//摇一摇模拟实现
$.deviceMotionHandler = function(e){
var me = $.SHAKE;
var x;
var y;
var z;
var acceleration = e.accelerationIncludingGravity;
var l;
var currentTime = new Date().getTime();
if ((currentTime - me.lastUpdate) > 100) {
var passTime = (currentTime - me.lastUpdate);
me.lastUpdate = currentTime;
x = acceleration.x;
y = acceleration.y;
z = acceleration.z;
var c = Math.abs(x + y + z - me.last_x - me.last_y - me.last_z) / passTime * 10000;
if (c > me.SHAKE_THRESHOLD) {
me.sharkTimer && clearTimeout(me.sharkTimer);
me.sharkTimer = setTimeout(function() {
shake();
}, 300);
}
me.last_x = x;
me.last_y = y;
me.last_z = z;
}
};
});
//摇一摇初始化
if (window.DeviceMotionEvent) {
var rocktip = $(".rocktip");
rocktip.removeClass("none");
window.addEventListener("devicemotion", function() { $.deviceMotionHandler.apply(null, arguments)}, false);
}
function shark(){
//todos
}
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