精美的鼠标拖动滑丝动画效果代码-html代码-BFW代码库

代码语言：html

所属分类：动画

代码描述：精美的鼠标拖动滑丝动画效果代码

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>BFW NEW PAGE</title>

    <style type="text/css">
        * {
            margin: 0;
            padding: 0;
            list-style-type: none;
        }
        body {
            font: 500 .875em PingFang SC,Lantinghei SC,Microsoft Yahei,Hiragino Sans GB,Microsoft Sans Serif,WenQuanYi Micro Hei,sans;
            background-color: #07040e;
        }
        #canvas {
            position: absolute;
            z-index: 10;
            top: 0;
            left: 0;
            bottom: 0;
            right: 0;
            cursor: none;
        }
    </style>

</head>
<body>

    <canvas id="canvas" width="1800" height="900"></canvas>

    <script type="text/javascript">
        var Stats = function () {
            var e = Date.now(),
            t = e,
            i = 0,
            n = 1 / 0,
            r = 0,
            s = 0,
            o = 1 / 0,
            a = 0,
            l = 0,
            h = 0,
            c = document.createElement("div"); c.id = "stats",
            c.addEventListener("mousedown",
                function (e) {
                    e.preventDefault(), v(++h % 2)
                }, !1),
            c.style.cssText = "width:80px;opacity:0.9;cursor:pointer"; var u = document.createElement("div"); u.id = "fps",
            u.style.cssText = "padding:0 0 3px 3px;text-align:left;background-color:#002",
            c.appendChild(u); var d = document.createElement("div"); d.id = "fpsText",
            d.style.cssText = "color:#0ff;font-family:Helvetica,Arial,sans-serif;font-size:9px;font-weight:bold;line-height:15px",
            d.innerHTML = "FPS",
            u.appendChild(d); var p = document.createElement("div"); for (p.id = "fpsGraph", p.style.cssText = "position:relative;width:74px;height:30px;background-color:#0ff", u.appendChild(p); 74 > p.children.length;) {
                var f = document.createElement("span"); f.style.cssText = "width:1px;height:30px;float:left;background-color:#113",
                p.appendChild(f)
            } var m = document.createElement("div"); m.id = "ms",
            m.style.cssText = "padding:0 0 3px 3px;text-align:left;background-color:#020;display:none",
            c.appendChild(m); var g = document.createElement("div"); g.id = "msText",
            g.style.cssText = "color:#0f0;font-family:Helvetica,Arial,sans-serif;font-size:9px;font-weight:bold;line-height:15px",
            g.innerHTML = "MS",
            m.appendChild(g); var y = document.createElement("div"); for (y.id = "msGraph", y.style.cssText = "position:relative;width:74px;height:30px;background-color:#0f0", m.appendChild(y); 74 > y.children.length;) {
                var f = document.createElement("span"); f.style.cssText = "width:1px;height:30px;float:left;background-color:#131",
                y.appendChild(f)
            } var v = function (e) {
                switch (h = e) {
                    case 0: u.style.display = "block",
                        m.style.display = "none"; break; case 1: u.style.display = "none",
                        m.style.display = "block"
                }
            },
            b = function (e, t) {
                var i = e.appendChild(e.firstChild); i.style.height = t + "px"
            }; return {
                REVISION: 11,
                domElement: c,
                setMode: v,
                begin: function () {
                    e = Date.now()
                },
                end: function () {
                    var h = Date.now(); return i = h - e,
                    n = Math.min(n, i),
                    r = Math.max(r, i),
                    g.textContent = i + " MS (" + n + "-" + r + ")",
                    b(y, Math.min(30, 30 - 30 * (i / 200))),
                    l++,
                    h > t + 1e3 && (s = Math.round(1e3 * l / (h - t)), o = Math.min(o, s), a = Math.max(a, s), d.textContent = s + " FPS (" + o + "-" + a + ")", b(p, Math.min(30, 30 - 30 * (s / 100))), t = h, l = 0),
                    h
                },
                update: function () {
                    e = this.end()
                }
            }
        };

    </script>
    <script type="text/javascript">
        (function (window) {

            var ctx,
            hue,
            logo,
            form,
            buffer,
            target = {},
            tendrils = [],
            settings = {};

            settings.debug = true;
            settings.friction = 0.5;
            settings.trails = 20;
            settings.size = 50;
            settings.dampening = 0.25;
            settings.tension = 0.98;

            Math.TWO_PI = Math.PI * 2;


            function Oscillator(options) {
                this.init(options || {});
            }

            Oscillator.prototype = (function () {

                var value = 0;

                return {

                    init: function (options) {
                        this.phase = options.phase || 0;
                        this.offset = options.offset || 0;
                        this.frequency = options.frequency || 0.001;
                        this.amplitude = options.amplitude || 1;
                    },

                    update: function () {
                        this.phase += this.frequency;
                        value = this.offset + Math.sin(this.phase) * this.amplitude;
                        return value;
                    },

                    value: function () {
                        return value;
                    }
                };

        })();


            function Tendril(options) {
                this.init(options || {});
        }

        Tendril.prototype = (function () {

            function Node() {
                this.x = 0;
                this.y = 0;
                this.vy = 0;
                this.vx = 0;
            }

            return {

                init: function (options) {

                    this.spring = options.spring + (Math.random() * 0.1) - 0.05;
                    this.friction = settings.friction + (Math.random() * 0.01) - 0.005;
                    this.nodes = [];

                    for (var i = 0, node; i < settings.size; i++) {

                        node = new Node();
                        node.x = target.x;
                        node.y = target.y;

                        this.nodes.push(node);
                    }
            },

            update: function () {

                var spring = this.spring,
                node = this.nodes[0];

                node.vx += (target.x - node.x) * spring;
                node.vy += (target.y - node.y) * spring;

                for (var prev, i = 0, n = this.nodes.length; i < n; i++) {

                    node = this.nodes[i];

                    if (i > 0) {

                        prev = this.nodes[i - 1];

                        node.vx += (prev.x - node.x) * spring;
                        node.vy += (prev.y - node.y) * spring;
                        node.vx += prev.vx * settings.dampening;
                        node.vy += prev.vy * settings.dampening;
                    }

                    node.vx *= this.friction;
                    node.vy *= this.friction;
.........完整代码请登录后点击上方下载按钮下载查看