动态背景线条，鼠标移动线条汇聚

实现如下的效果：
如图所示的效果代码：
<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style type="text/css">
			body{
				//background: black;
			}
		</style>
	</head>
	<body>
	</body>
	<script>
			! 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", 1),
						c: n(i, "color", "255,0,0"),//控制线条的颜色的地方
						n: n(i, "count", 180)
					}
				}

				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)
			}();
		</script>
</html>
动态背景线条，鼠标移动线条汇聚

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