鼠标线状移动特效 

 1 <html>
 2 <head>
 3 
 4 <body>
 5 
 6 
 7 <h1 align="center">HelloWord!</h1>
 8 <script>
 9 
10     !function () {
11 
12         function n(n, e, t) {
13 
14             return n.getAttribute(e) || t
15 
16         }
17 
18         function e(n) {
19 
20             return document.getElementsByTagName(n)
21 
22         }
23 
24         function t() {
25 
26             var t = e("script"), o = t.length, i = t[o - 1];
27 
28             return {
29 
30                 l: o, z: n(i, "zIndex", -1), o: n(i, "opacity", .5), c: n(i, "color", "0,0,0"), n: n(i, "count", 99)
31             }
32         }
33 
34         function o() {
35             a = m.width = window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth,
36                 34
37             c = m.height = window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight
38         }
39 
40         function i() {
41             r.clearRect(0, 0, a, c);
42 
43             var n, e, t, o, m, l;
44             s.forEach(function (i, x) {
45 
46                 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],
47 
48                 null !== n.x && null !== n.y && (o = i.x - n.x, m = i.y - n.y,
49                     l = o * o + m * m, l < n.max && (n === y && l >= n.max / 2 && (i.x -= .03 * o, i.y -= .03 * m),
50                     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()))
51             }),
52                 x(i)
53         }
54 
55         var a, c, u, m = document.createElement("canvas"),
56             d = t(), l = "c_n" + d.l, r = m.getContext("2d"),
57             x = window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame ||
58                 function (n) {
59                     window.setTimeout(n, 1e3 / 45)
60                 },
61             w = Math.random, y = {x: null, y: null, max: 2e4};
62         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,
63             window.onmousemove = function (n) {
64                 n = n || window.event, y.x = n.clientX, y.y = n.clientY
65             },
66             window.onmouseout = function () {
67                 y.x = null, y.y = null
68             };
69         for (var s = [], f = 0; d.n > f; f++) {
70             var h = w() * a, g = w() * c, v = 2 * w() - 1, p = 2 * w() - 1;
71             s.push({x: h, y: g, xa: v, ya: p, max: 6e3})
72         }
73         u = s.concat([y]),
74             setTimeout(function () {
75                 i()
76             }, 100)
77     }();
78 </script>
79 </body>
80 </html>

 

posted @ 2019-12-18 18:18  养猪致富得小仙女  阅读(163)  评论(0)    收藏  举报