Vue使用js鼠标蜘蛛特效

  !function() {

      function n(n, e, t) {

          return n.getAttribute(e) || t

      }

      function e(n) {

          return document.getElementsByTagName(n)

      }

      function t() {

          var t = e("script"),

          o = t.length,

          i = t[o - 1];

          return {

              l: o,

              z: n(i, "zIndex", -1),

              o: n(i, "opacity", .9),   //透明度

              c: n(i, "color", "255, 102, 153"),   //颜色

              n: n(i, "count", 99)

          }

      }

      function o() {

          a = m.width = window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth,

          c = m.height = window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight

      }

      function i() {

          r.clearRect(0, 0, a, c);

          var n, e, t, o, m, l;

          s.forEach(function(i, x) {

              for (i.x += i.xa, i.y += i.ya, i.xa *= i.x > a || i.x < 0 ? -1 : 1, i.ya *= i.y > c || i.y < 0 ? -1 : 1, r.fillRect(i.x - .5, i.y - .5, 1, 1), e = x + 1; e < u.length; e++) n = u[e],

              null !== n.x && null !== n.y && (o = i.x - n.x, m = i.y - n.y, l = o * o + m * m, l < n.max && (n === y && l >= n.max / 2 && (i.x -= .03 * o, i.y -= .03 * m), t = (n.max - l) / n.max, r.beginPath(), r.lineWidth = t / 2, r.strokeStyle = "rgba(" + d.c + "," + (t + .2) + ")", r.moveTo(i.x, i.y), r.lineTo(n.x, n.y), r.stroke()))

          }),

          x(i)

      }

      var a, c, u, m = document.createElement("canvas"),

      d = t(),

      l = "c_n" + d.l,

      r = m.getContext("2d"),

      x = window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame ||

      function(n) {

          window.setTimeout(n, 1e3 / 45)

      },

      w = Math.random,

      y = {

          x: null,

          y: null,

          max: 2e4

      };

      m.id = l,

      m.style.cssText = "position:fixed;top:0;left:0;z-index:" + d.z + ";opacity:" + d.o,

      e("body")[0].appendChild(m),

      o(),

      window.onresize = o,

      window.onmousemove = function(n) {

          n = n || window.event,

          y.x = n.clientX,

          y.y = n.clientY

      },

      window.onmouseout = function() {

          y.x = null,

          y.y = null

      };

      for (var s = [], f = 0; d.n > f; f++) {

          var h = w() * a,

          g = w() * c,

          v = 2 * w() - 1,

          p = 2 * w() - 1;

          s.push({

              x: h,

              y: g,

              xa: v,

              ya: p,

              max: 6e3

          })

      }

      u = s.concat([y]),

      setTimeout(function() {

          i()

      },

      100)

  } ();

<template>

  <div id="app">

  </div>

</template>

<script>

import Canvas from './utils/canvas-nest.js'

export default {

  name: 'app',

  components: {

    Canvas

  }

}

</script>

<style>

canvas{

    background: rgb(226, 225, 225);

    opacity: 0.3;

}

</style>