// // 导航滚动监测

// $(function(){ 
// var winHeight = $(document).scrollTop();
// $(window).scroll(function() {
// var scrollY = $(document).scrollTop();// 获取垂直滚动的距离,即滚动了多少
// if (scrollY > 100){ //如果滚动距离大于440px则隐藏,否则删除隐藏类
// $('.stopnav').css("background","#444");
// } 
// else {
// $('.stopnav').css("background","none");
// }});
// });


/* particlesJS.load(@dom-id, @path-json, @callback (optional)); */
particlesJS.load('particles.js', 'particles.json', function() {
 console.log('callback - particles.js config loaded');
});





/* ---- particles.js config ---- */

particlesJS("particles-js", {
 "particles": {
 "number": {
 "value": 80,
 "density": {
 "enable": true,
 "value_area": 1999
 }
 },
 "color": {
 "value": "#ccc"
 },
 "shape": {
 "type": "circle",
 "stroke": {
 "width": 0,
 "color": "#333"
 },
 "polygon": {
 "nb_sides": 5
 },
 "image": {
 "src": "img/github.svg",
 "width": 100,
 "height": 100
 }
 },
 "opacity": {
 "value": 0.5,
 "random": false,
 "anim": {
 "enable": false,
 "speed": 1,
 "opacity_min": 0.1,
 "sync": false
 }
 },
 "size": {
 "value": 3,
 "random": true,
 "anim": {
 "enable": false,
 "speed": 20,
 "size_min": 0.1,
 "sync": false
 }
 },
 "line_linked": {
 "enable": true,
 "distance": 150,
 "color": "#999",
 "opacity": 0.4,
 "width": 1
 },
 "move": {
 "enable": true,
 "speed": 5,
 "direction": "none",
 "random": false,
 "straight": false,
 "out_mode": "out",
 "bounce": false,
 "attract": {
 "enable": false,
 "rotateX": 600,
 "rotateY": 1200
 }
 }
 },
 "interactivity": {
 "detect_on": "canvas",
 "events": {
 "onhover": {
 "enable": true,
 "mode": "grab"
 },
 "onclick": {
 "enable": true,
 "mode": "push"
 },
 "resize": true
 },
 "modes": {
 "grab": {
 "distance": 140,
 "line_linked": {
 "opacity": 1
 }
 },
 "bubble": {
 "distance": 400,
 "size": 40,
 "duration": 2,
 "opacity": 8,
 "speed": 3
 },
 "repulse": {
 "distance": 200,
 "duration": 0.4
 },
 "push": {
 "particles_nb": 4
 },
 "remove": {
 "particles_nb": 2
 }
 }
 },
 "retina_detect": true
});


/* ---- stats.js config ---- */

var count_particles, stats, update;
stats = new Stats;
stats.setMode(0);
stats.domElement.style.position = 'absolute';
stats.domElement.style.left = '0px';
stats.domElement.style.top = '0px';
document.body.appendChild(stats.domElement);
count_particles = document.querySelector('.js-count-particles');
update = function() {
 stats.begin();
 stats.end();
 if (window.pJSDom[0].pJS.particles && window.pJSDom[0].pJS.particles.array) {
 count_particles.innerText = window.pJSDom[0].pJS.particles.array.length;
 }
 requestAnimationFrame(update);
};
requestAnimationFrame(update);