HTML5QQ登录的一篇代码分享

来源：懂视网责编：小采时间：2020-11-27 15:08:12

HTML5QQ登录的一篇代码分享

HTML5QQ登录的一篇代码分享:<!DOCTYPE html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>html5背景</title> <style type="text/css"> *{margin:0;padding:0;list-style-type

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导读HTML5QQ登录的一篇代码分享:<!DOCTYPE html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>html5背景</title> <style type="text/css"> *{margin:0;padding:0;list-style-type

<!DOCTYPE html> 
<head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
 <title>html5背景</title>
 
 <style type="text/css">
 *{margin:0;padding:0;list-style-type:none;}
 a,img{border:0;}
 </style>
 <script type="text/javascript" src="http://code.jquery.com/jquery-1.8.3.min.js"></script>
</head>
<body>
<div id="container" style="width:100%;height:700px;">
 <div id="anitOut"></div>
</div>
<script type="text/javascript">
$(function () {
 if (!window.ActiveXObject && !!document.createElement("canvas").getContext) {
 $.getScript("http://im-img.qq.com/pcqq/js/200/cav.js?_=1428576021379",
 function () {
 var t = {
 width: 1.5,
 height: 1.5,
 depth: 10,
 segments: 12,
 slices: 6,
 xRange: 0.8,
 yRange: 0.1,
 zRange: 1,
 ambient: "#525252",
 diffuse: "#FFFFFF",
 speed: 0.0002
 };
 var G = {
 count: 2,
 xyScalar: 1,
 zOffset: 100,
 ambient: "#002c4a",
 diffuse: "#005584",
 speed: 0.001,
 gravity: 1200,
 dampening: 0.95,
 minLimit: 10,
 maxLimit: null,
 minDistance: 20,
 maxDistance: 400,
 autopilot: false,
 draw: false,
 bounds: CAV.Vector3.create(),
 step: CAV.Vector3.create(Math.randomInRange(0.2, 1), Math.randomInRange(0.2, 1), Math.randomInRange(0.2, 1))
 };
 var m = "canvas";
 var E = "svg";
 var x = {
 renderer: m
 };
 var i, n = Date.now();
 var L = CAV.Vector3.create();
 var k = CAV.Vector3.create();
 var z = document.getElementById("container");
 var w = document.getElementById("anitOut");
 var D, I, h, q, y;
 var g;
 var r;

 function C() {
 F();
 p();
 s();
 B();
 v();
 K(z.offsetWidth, z.offsetHeight);
 o()
 }

 function F() {
 g = new CAV.CanvasRenderer();
 H(x.renderer)
 }

 function H(N) {
 if (D) {
 w.removeChild(D.element)
 }
 switch (N) {
 case m:
 D = g;
 break
 }
 D.setSize(z.offsetWidth, z.offsetHeight);
 w.appendChild(D.element)
 }

 function p() {
 I = new CAV.Scene()
 }

 function s() {
 I.remove(h);
 D.clear();
 q = new CAV.Plane(t.width * D.width, t.height * D.height, t.segments, t.slices);
 y = new CAV.Material(t.ambient, t.diffuse);
 h = new CAV.Mesh(q, y);
 I.add(h);
 var N, O;
 for (N = q.vertices.length - 1; N >= 0; N--) {
 O = q.vertices[N];
 O.anchor = CAV.Vector3.clone(O.position);
 O.step = CAV.Vector3.create(Math.randomInRange(0.2, 1), Math.randomInRange(0.2, 1), Math.randomInRange(0.2, 1));
 O.time = Math.randomInRange(0, Math.PIM2)
 }
 }

 function B() {
 var O, N;
 for (O = I.lights.length - 1; O >= 0; O--) {
 N = I.lights[O];
 I.remove(N)
 }
 D.clear();
 for (O = 0; O < G.count; O++) {
 N = new CAV.Light(G.ambient, G.diffuse);
 N.ambientHex = N.ambient.format();
 N.diffuseHex = N.diffuse.format();
 I.add(N);
 N.mass = Math.randomInRange(0.5, 1);
 N.velocity = CAV.Vector3.create();
 N.acceleration = CAV.Vector3.create();
 N.force = CAV.Vector3.create()
 }
 }

 function K(O, N) {
 D.setSize(O, N);
 CAV.Vector3.set(L, D.halfWidth, D.halfHeight);
 s()
 }

 function o() {
 i = Date.now() - n;
 u();
 M();
 requestAnimationFrame(o)
 }

 function u() {
 var Q, P, O, R, T, V, U, S = t.depth / 2;
 CAV.Vector3.copy(G.bounds, L);
 CAV.Vector3.multiplyScalar(G.bounds, G.xyScalar);
 CAV.Vector3.setZ(k, G.zOffset);
 for (R = I.lights.length - 1; R >= 0; R--) {
 T = I.lights[R];
 CAV.Vector3.setZ(T.position, G.zOffset);
 var N = Math.clamp(CAV.Vector3.distanceSquared(T.position, k), G.minDistance, G.maxDistance);
 var W = G.gravity * T.mass / N;
 CAV.Vector3.subtractVectors(T.force, k, T.position);
 CAV.Vector3.normalise(T.force);
 CAV.Vector3.multiplyScalar(T.force, W);
 CAV.Vector3.set(T.acceleration);
 CAV.Vector3.add(T.acceleration, T.force);
 CAV.Vector3.add(T.velocity, T.acceleration);
 CAV.Vector3.multiplyScalar(T.velocity, G.dampening);
 CAV.Vector3.limit(T.velocity, G.minLimit, G.maxLimit);
 CAV.Vector3.add(T.position, T.velocity)
 }
 for (V = q.vertices.length - 1; V >= 0; V--) {
 U = q.vertices[V];
 Q = Math.sin(U.time + U.step[0] * i * t.speed);
 P = Math.cos(U.time + U.step[1] * i * t.speed);
 O = Math.sin(U.time + U.step[2] * i * t.speed);
 CAV.Vector3.set(U.position, t.xRange * q.segmentWidth * Q, t.yRange * q.sliceHeight * P, t.zRange * S * O - S);
 CAV.Vector3.add(U.position, U.anchor)
 }
 q.dirty = true
 }

 function M() {
 D.render(I)
 }

 function J(O) {
 var Q, N, S = O;
 var P = function (T) {
 for (Q = 0, l = I.lights.length; Q < l; Q++) {
 N = I.lights[Q];
 N.ambient.set(T);
 N.ambientHex = N.ambient.format()
 }
 };
 var R = function (T) {
 for (Q = 0, l = I.lights.length; Q < l; Q++) {
 N = I.lights[Q];
 N.diffuse.set(T);
 N.diffuseHex = N.diffuse.format()
 }
 };
 return {
 set: function () {
 P(S[0]);
 R(S[1])
 }
 }
 }

 function v() {
 window.addEventListener("resize", j)
 }

 function A(N) {
 CAV.Vector3.set(k, N.x, D.height - N.y);
 CAV.Vector3.subtract(k, L)
 }

 function j(N) {
 K(z.offsetWidth, z.offsetHeight);
 M()
 }

 C();
 })
 } else {
 alert('调用cav.js失败');
 }
});
</script>
</body>
</html>

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HTML5QQ登录的一篇代码分享

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HTML5QQ登录的一篇代码分享

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HTML5QQ登录的一篇代码分享

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