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93 lines
3.0 KiB
93 lines
3.0 KiB
3 years ago
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! function () {
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var userAgentInfo = navigator.userAgent;
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var Agents = ["iPad", "iPhone", "Android",
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"SymbianOS", "Windows Phone",
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"iPod", "webOS", "BlackBerry", "IEMobile"
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];
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for (var v = 0; v < Agents.length; v++) {
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if (userAgentInfo.indexOf(Agents[v]) > 0) {
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return;
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}
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}
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function o(w, v, i) {
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return w.getAttribute(v) || i
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}
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function j(i) {
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return document.getElementsByTagName(i)
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}
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function l() {
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var i = j("script"),
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w = i.length,
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v = i[w - 1];
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return {
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l: w,
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z: o(v, "zIndex", -1),
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o: o(v, "opacity", 0.5),
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c: o(v, "color", "0,0,0"),
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n: o(v, "count", 99)
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}
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}
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function k() {
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r = u.width = window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth, n = u.height = window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight
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}
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function b() {
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e.clearRect(0, 0, r, n);
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var w = [f].concat(t);
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var x, v, A, B, z, y;
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t.forEach(function (i) {
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i.x += i.xa, i.y += i.ya, i.xa *= i.x > r || i.x < 0 ? -1 : 1, i.ya *= i.y > n || i.y < 0 ? -1 : 1, e.fillRect(i.x - 0.5, i.y - 0.5, 1, 1);
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for (v = 0; v < w.length; v++) {
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x = w[v];
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if (i !== x && null !== x.x && null !== x.y) {
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B = i.x - x.x, z = i.y - x.y, y = B * B + z * z;
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y < x.max && (x === f && y >= x.max / 2 && (i.x -= 0.03 * B, i.y -= 0.03 * z), A = (x.max - y) / x.max, e.beginPath(), e.lineWidth = A / 2, e.strokeStyle = "rgba(" + s.c + "," + (A + 0.2) + ")", e.moveTo(i.x, i.y), e.lineTo(x.x, x.y), e.stroke())
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}
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}
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w.splice(w.indexOf(i), 1)
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}), m(b)
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}
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var u = document.createElement("canvas"),
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s = l(),
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c = "c_n" + s.l,
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e = u.getContext("2d"),
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r, n, m = window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || function (i) {
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window.setTimeout(i, 1000 / 45)
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},
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a = Math.random,
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f = {
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x: null,
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y: null,
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max: 20000
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};
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u.id = c;
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u.style.cssText = "position:fixed;top:0;left:0;z-index:" + s.z + ";opacity:" + s.o;
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j("body")[0].appendChild(u);
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k(), window.onresize = k;
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window.onmousemove = function (i) {
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i = i || window.event, f.x = i.clientX, f.y = i.clientY
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}, window.onmouseout = function () {
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f.x = null, f.y = null
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};
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for (var t = [], p = 0; s.n > p; p++) {
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var h = a() * r,
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g = a() * n,
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q = 2 * a() - 1,
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d = 2 * a() - 1;
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t.push({
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x: h,
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y: g,
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xa: q,
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ya: d,
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max: 6000
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})
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}
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setTimeout(function () {
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b()
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}, 100)
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}();
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