蜂窝背景页面特效

!function () {
"use strict";

function e(e) {
return e && e.__esModule && Object.prototype.hasOwnProperty.call(e, "default") ? e.default : e
}

function t(e, t) {
return e(t = {exports: {}}, t.exports), t.exports
}

var n = t(function (e, t) {
Object.defineProperty(t, "__esModule", {
value: !0
});
var n = 1;
t.default = function () {
return "" + n++
},
e.exports = t.default
});
e(n);
var o = t(function (e, t) {
Object.defineProperty(t, "__esModule", {value: !0}), t.default = function (e) {
var t = arguments.length > 1 && void 0 !== arguments[1] ? arguments[1] : 30, n = null;
return function () {
for (var o = this, i = arguments.length, r = Array(i), a = 0; a < i; a++) r[a] = arguments[a];
clearTimeout(n), n = setTimeout(function () {
e.apply(o, r)
}, t)
}
}, e.exports = t.default
});
e(o);
var i = t(function (e, t) {
Object.defineProperty(t, "__esModule", {value: !0});
t.SizeSensorId = "size-sensor-id", t.SensorStyle = "display:block;position:absolute;top:0;left:0;height:100%;100%;overflow:hidden;pointer-events:none;z-index:-1;opacity:0", t.SensorClassName = "size-sensor-object"
});
e(i);
i.SizeSensorId, i.SensorStyle, i.SensorClassName;
var r = t(function (e, t) {
Object.defineProperty(t, "__esModule", {value: !0}), t.createSensor = void 0;
var n, r = (n = o) && n.__esModule ? n : {default: n};
t.createSensor = function (e) {
var t = void 0, n = [], o = (0, r.default)(function () {
n.forEach(function (t) {
t(e)
})
}), a = function () {
t && t.parentNode && (t.contentDocument.defaultView.removeEventListener("resize", o), t.parentNode.removeChild(t), t = void 0, n = [])
};
return {
element: e, bind: function (r) {
t || (t = function () {
"static" === getComputedStyle(e).position && (e.style.position = "relative");
var t = document.createElement("object");
return t.onload = function () {
t.contentDocument.defaultView.addEventListener("resize", o), o()
}, t.setAttribute("style", i.SensorStyle), t.setAttribute("class", i.SensorClassName), t.type = "text/html", e.appendChild(t), t.data = "about:blank", t
}()), -1 === n.indexOf(r) && n.push(r)
}, destroy: a, unbind: function (e) {
var o = n.indexOf(e);
-1 !== o && n.splice(o, 1), 0 === n.length && t && a()
}
}
}
});
e(r);
r.createSensor;
var a = t(function (e, t) {
Object.defineProperty(t, "__esModule", {value: !0}), t.createSensor = void 0;
var n, i = (n = o) && n.__esModule ? n : {default: n};
t.createSensor = function (e) {
var t = void 0, n = [], o = (0, i.default)(function () {
n.forEach(function (t) {
t(e)
})
}), r = function () {
t.disconnect(), n = [], t = void 0
};
return {
element: e, bind: function (i) {
t || (t = function () {
var t = new ResizeObserver(o);
return t.observe(e), o(), t
}()), -1 === n.indexOf(i) && n.push(i)
}, destroy: r, unbind: function (e) {
var o = n.indexOf(e);
-1 !== o && n.splice(o, 1), 0 === n.length && t && r()
}
}
}
});
e(a);
a.createSensor;
var s = t(function (e, t) {
Object.defineProperty(t, "__esModule", {value: !0}), t.createSensor = void 0;
t.createSensor = "undefined" != typeof ResizeObserver ? a.createSensor : r.createSensor
});
e(s);
s.createSensor;
var u = t(function (e, t) {
Object.defineProperty(t, "__esModule", {value: !0}), t.removeSensor = t.getSensor = void 0;
var o, r = (o = n) && o.__esModule ? o : {default: o};
var a = {};
t.getSensor = function (e) {
var t = e.getAttribute(i.SizeSensorId);
if (t && a[t]) return a[t];
var n = (0, r.default)();
e.setAttribute(i.SizeSensorId, n);
var o = (0, s.createSensor)(e);
return a[n] = o, o
}, t.removeSensor = function (e) {
var t = e.element.getAttribute(i.SizeSensorId);
e.element.removeAttribute(i.SizeSensorId), e.destroy(), t && a[t] && delete a[t]
}
});
e(u);
u.removeSensor, u.getSensor;
var c = t(function (e, t) {
Object.defineProperty(t, "__esModule", {value: !0}), t.clear = t.bind = void 0;
t.bind = function (e, t) {
var n = (0, u.getSensor)(e);
return n.bind(t), function () {
n.unbind(t)
}
}, t.clear = function (e) {
var t = (0, u.getSensor)(e);
(0, u.removeSensor)(t)
}
});
e(c);
var l = c.clear, d = c.bind,
v = window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.msRequestAnimationFrame || window.oRequestAnimationFrame || function (e) {
return window.setTimeout(e, 1e3 / 60)
},
f = window.cancelAnimationFrame || window.webkitCancelAnimationFrame || window.mozCancelAnimationFrame || window.msCancelAnimationFrame || window.oCancelAnimationFrame || window.clearTimeout,
m = function (e) {
return new Array(e).fill(0).map(function (e, t) {
return t
})
}, h = Object.assign || function (e) {
for (var t = 1; t < arguments.length; t++) {
var n = arguments[t];
for (var o in n) Object.prototype.hasOwnProperty.call(n, o) && (e[o] = n[o])
}
return e
}, p = function () {
function e(e, t) {
for (var n = 0; n < t.length; n++) {
var o = t[n];
o.enumerable = o.enumerable || !1, o.configurable = !0, "value" in o && (o.writable = !0), Object.defineProperty(e, o.key, o)
}
}

return function (t, n, o) {
return n && e(t.prototype, n), o && e(t, o), t
}
}();
var y = function () {
function e(t, n) {
var o = this;
!function (e, t) {
if (!(e instanceof t)) throw new TypeError("Cannot call a class as a function")
}(this, e), this.randomPoints = function () {
return m(o.c.count).map(function () {
return {
x: Math.random() * o.canvas.width,
y: Math.random() * o.canvas.height,
xa: 2 * Math.random() - 1,
ya: 2 * Math.random() - 1,
max: 6e3
}
})
}, this.el = t, this.c = h({
zIndex: -1,
opacity: .5,
color: "0,0,0",
pointColor: "0,0,0",
count: 99
}, n), this.canvas = this.newCanvas(), this.context = this.canvas.getContext("2d"), this.points = this.randomPoints(), this.current = {
x: null,
y: null,
max: 2e4
}, this.all = this.points.concat([this.current]), this.bindEvent(), this.requestFrame(this.drawCanvas)
}

return p(e, [{
key: "bindEvent", value: function () {
var e = this;
d(this.el, function () {
e.canvas.width = e.el.clientWidth, e.canvas.height = e.el.clientHeight
}), this.onmousemove = window.onmousemove, window.onmousemove = function (t) {
e.current.x = t.clientX - e.el.offsetLeft + document.scrollingElement.scrollLeft, e.current.y = t.clientY - e.el.offsetTop + document.scrollingElement.scrollTop, e.onmousemove && e.onmousemove(t)
}, this.onmouseout = window.onmouseout, window.onmouseout = function () {
e.current.x = null, e.current.y = null, e.onmouseout && e.onmouseout()
}
}
}, {
key: "newCanvas", value: function () {
"static" === getComputedStyle(this.el).position && (this.el.style.position = "relative");
var e, t = document.createElement("canvas");
return t.style.cssText = "display:block;position:absolute;top:0;left:0;height:100%;100%;overflow:hidden;pointer-events:none;z-index:" + (e = this.c).zIndex + ";opacity:" + e.opacity, t.width = this.el.clientWidth, t.height = this.el.clientHeight, this.el.appendChild(t), t
}
}, {
key: "requestFrame", value: function (e) {
var t = this;
this.tid = v(function () {
return e.call(t)
})
}
}, {
key: "drawCanvas", value: function () {
var e = this, t = this.context, n = this.canvas.width, o = this.canvas.height, i = this.current,
r = this.points, a = this.all;
t.clearRect(0, 0, n, o);
var s = void 0, u = void 0, c = void 0, l = void 0, d = void 0, v = void 0;
r.forEach(function (r, f) {
for (r.x += r.xa, r.y += r.ya, r.xa *= r.x > n || r.x < 0 ? -1 : 1, r.ya *= r.y > o || r.y < 0 ? -1 : 1, t.fillStyle = "rgba(" + e.c.pointColor + ")", t.fillRect(r.x - .5, r.y - .5, 1, 1), u = f + 1; u < a.length; u++) null !== (s = a[u]).x && null !== s.y && (l = r.x - s.x, d = r.y - s.y, (v = l * l + d * d) < s.max && (s === i && v >= s.max / 2 && (r.x -= .03 * l, r.y -= .03 * d), c = (s.max - v) / s.max, t.beginPath(), t.lineWidth = c / 2, t.strokeStyle = "rgba(" + e.c.color + "," + (c + .2) + ")", t.moveTo(r.x, r.y), t.lineTo(s.x, s.y), t.stroke()))
}), this.requestFrame(this.drawCanvas)
}
}, {
key: "destroy", value: function () {
l(this.el), window.onmousemove = this.onmousemove, window.onmouseout = this.onmouseout, f(this.tid), this.canvas.parentNode.removeChild(this.canvas)
}
}]), e
}();
y.version = "2.0.4";
var w, b;
new y(document.body, (w = document.getElementsByTagName("script"), {
zIndex: (b = w[w.length - 1]).getAttribute("zIndex"),
opacity: b.getAttribute("opacity"),
color: b.getAttribute("color"),
pointColor: b.getAttribute("pointColor"),
count: Number(b.getAttribute("count")) || 99
}))
}();