-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathindex.html
91 lines (85 loc) · 2.18 KB
/
index.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
html,
body {
overflow: hidden;
margin: 0;
}
canvas {
position: absolute;
top: 0;
left: 0;
z-index: 0;
width: 100%;
height: 100%;
pointer-events: none;
}
</style>
</head>
<body>
<canvas></canvas>
<script>
document.addEventListener('touchmove', function (e) {
e.preventDefault()
})
var c = document.getElementsByTagName('canvas')[0],
x = c.getContext('2d'),
pr = window.devicePixelRatio || 1,
w = window.innerWidth,
h = window.innerHeight,
f = 90,
q,
m = Math,
r = 0,
u = m.PI * 2,
v = m.cos,
z = m.random
c.width = w * pr
c.height = h * pr
x.scale(pr, pr)
x.globalAlpha = 0.6
function i() {
x.clearRect(0, 0, w, h)
q = [{
x: 0,
y: h * .7 + f
}, {
x: 0,
y: h * .7 - f
}]
while (q[1].x < w + f) d(q[0], q[1])
}
function d(i, j) {
x.beginPath()
x.moveTo(i.x, i.y)
x.lineTo(j.x, j.y)
var k = j.x + (z() * 2 - 0.25) * f,
n = y(j.y)
x.lineTo(k, n)
x.closePath()
r -= u / -50
x.fillStyle = '#' + (v(r) * 127 + 128 << 16 | v(r + u / 3) * 127 + 128 << 8 | v(r + u / 3 * 2) * 127 + 128)
.toString(16)
x.fill()
q[0] = q[1]
q[1] = {
x: k,
y: n
}
}
function y(p) {
var t = p + (z() * 2 - 1.1) * f
return (t > h || t < 0) ? y(p) : t
}
document.onclick = i
document.ontouchstart = i
i()
</script>
</body>
</html>