html鼠标特效_web前端开发简单网页案例

编程小6 (2) 2024-06-04 13:23

Hi，大家好，我是编程小6，很荣幸遇见你，我把这些年在开发过程中遇到的问题或想法写出来，今天说一说html鼠标特效_web前端开发简单网页案例,希望能够帮助你!!!。

下面是鼠标特效的代码演示和代码

代码

<!DOCTYPE html>
<html lang="zh">
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>鼠标特效</title>

    <script>
        window.dataLayer = window.dataLayer || [];
        function gtag(){dataLayer.push(arguments);}
        gtag('js', new Date());
        gtag('config', 'UA-162013750-4');
    </script>

    <style type="text/css">

        * {
            margin: 0;
            padding: 0;
            -webkit-box-sizing: border-box;
            -moz-box-sizing: border-box;
            -ms-box-sizing: border-box;
            -o-box-sizing: border-box;
            box-sizing: border-box;
        }
      
    </style>
</head>

<body ondragstart="window.event.returnValue=false" oncontextmenu="window.event.returnValue=false" onselectstart="event.returnValue=false" class="mdui-loaded">

<h1 id="h1"></h1>
<h2 id="h2"></h2>
<canvas id="canvas" width="1044" height="863"></canvas>

<script>
    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>

    ;(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;

// ========================================================================================
// Oscillator
// ----------------------------------------------------------------------------------------

        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;
                }
            };

        })();

// ========================================================================================
// Tendril
// ----------------------------------------------------------------------------------------

        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;
                        node.x += node.vx;
                        node.y += node.vy;

                        spring *= settings.tension;
                    }
                },

                draw: function() {

                    var x = this.nodes[0].x,
                        y = this.nodes[0].y,
                        a, b;

                    ctx.beginPath();
                    ctx.moveTo(x, y);

                    for(var i = 1, n = this.nodes.length - 2; i < n; i++) {

                        a = this.nodes[i];
                        b = this.nodes[i + 1];
                        x = (a.x + b.x) * 0.5;
                        y = (a.y + b.y) * 0.5;

                        ctx.quadraticCurveTo(a.x, a.y, x, y);
                    }

                    a = this.nodes[i];
                    b = this.nodes[i + 1];

                    ctx.quadraticCurveTo(a.x, a.y, b.x, b.y);
                    ctx.stroke();
                    ctx.closePath();
                }
            };

        })();

// ----------------------------------------------------------------------------------------

        function init(event) {

            document.removeEventListener('mousemove', init);
            document.removeEventListener('touchstart', init);

            document.addEventListener('mousemove', mousemove);
            document.addEventListener('touchmove', mousemove);
            document.addEventListener('touchstart', touchstart);

            mousemove(event);
            reset();
            loop();
        }

        function reset() {

            tendrils = [];

            for(var i = 0; i < settings.trails; i++) {

                tendrils.push(new Tendril({
                    spring: 0.45 + 0.025 * (i / settings.trails)
                }));
            }
        }

        function loop() {

            if(!ctx.running) return;

            ctx.globalCompositeOperation = 'source-over';
            ctx.fillStyle = 'rgba(160,160,100,0.1)';//background : 背景颜色控制
            ctx.fillRect(0, 0, ctx.canvas.width, ctx.canvas.height);
            ctx.globalCompositeOperation = 'lighter';
            ctx.strokeStyle = 'hsla(' + Math.round(hue.update()) + ',90%,50%,0.25)';
            ctx.lineWidth = 1;

            if(ctx.frame % 60 == 0) {
                console.log(hue.update(), Math.round(hue.update()), hue.phase, hue.offset, hue.frequency, hue.amplitude);
            }

            for(var i = 0, tendril; i < settings.trails; i++) {
                tendril = tendrils[i];
                tendril.update();
                tendril.draw();
            }

            ctx.frame++;
            ctx.stats.update();
            requestAnimFrame(loop);
        }

        function resize() {
            ctx.canvas.width = window.innerWidth;
            ctx.canvas.height = window.innerHeight;
        }

        function start() {
            if(!ctx.running) {
                ctx.running = true;
                loop();
            }
        }

        function stop() {
            ctx.running = false;
        }

        function mousemove(event) {
            if(event.touches) {
                target.x = event.touches[0].pageX;
                target.y = event.touches[0].pageY;
            } else {
                target.x = event.clientX
                target.y = event.clientY;
            }
            event.preventDefault();
        }

        function touchstart(event) {
            if(event.touches.length == 1) {
                target.x = event.touches[0].pageX;
                target.y = event.touches[0].pageY;
            }
        }

        function keyup(event) {

            switch(event.keyCode) {
                case 32:
                    save();
                    break;
                default:
            }
        }

        function letters(id) {

            var el = document.getElementById(id),
                letters = el.innerHTML.replace('&amp;', '&').split(''),
                heading = '';

            for(var i = 0, n = letters.length, letter; i < n; i++) {
                letter = letters[i].replace('&', '&amp');
                heading += letter.trim() ? '<span class="letter-' + i + '">' + letter + '</span>' : '&nbsp;';
            }

            el.innerHTML = heading;
            setTimeout(function() {
                el.className = 'transition-in';
            }, (Math.random() * 500) + 500);
        }

        function save() {

            if(!buffer) {

                buffer = document.createElement('canvas');
                buffer.width = screen.availWidth;
                buffer.height = screen.availHeight;
                buffer.ctx = buffer.getContext('2d');

                form = document.createElement('form');
                form.method = 'post';
                form.input = document.createElement('input');
                form.input.type = 'hidden';
                form.input.name = 'data';
                form.appendChild(form.input);

                document.body.appendChild(form);
            }

            buffer.ctx.fillStyle = 'rgba(8,5,16)';
            buffer.ctx.fillRect(0, 0, buffer.width, buffer.height);

            buffer.ctx.drawImage(canvas,
                Math.round(buffer.width / 2 - canvas.width / 2),
                Math.round(buffer.height / 2 - canvas.height / 2)
            );

            buffer.ctx.drawImage(logo,
                Math.round(buffer.width / 2 - logo.width / 4),
                Math.round(buffer.height / 2 - logo.height / 4),
                logo.width / 2,
                logo.height / 2
            );

            window.open(buffer.toDataURL(), 'wallpaper', 'top=0,left=0,width=' + buffer.width + ',height=' + buffer.height);

            // form.input.value = buffer.toDataURL().substr(22);
            // form.submit();
        }

        window.requestAnimFrame = (function() {
            return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || function(fn) { window.setTimeout(fn, 1000 / 60) };
        })();

        window.onload = function() {

            ctx = document.getElementById('canvas').getContext('2d');
            ctx.stats = new Stats();
            ctx.running = true;
            ctx.frame = 1;

            logo = new Image();
            //logo.src = 'http://labs.nikrowell.com/lightsandmotion/ultraviolet/images/logo.png';

            hue = new Oscillator({
                phase: Math.random() * Math.TWO_PI,
                amplitude: 85,
                frequency: 0.0015,
                offset: 285
            });

            letters('h1');
            letters('h2');

            document.addEventListener('mousemove', init);
            document.addEventListener('touchstart', init);
            document.body.addEventListener('orientationchange', resize);
            window.addEventListener('resize', resize);
            window.addEventListener('keyup', keyup);
            window.addEventListener('focus', start);
            window.addEventListener('blur', stop);

            resize();

            if(window.DEBUG) {

                var gui = new dat.GUI();

                // gui.add(settings, 'debug');
                settings.gui.add(settings, 'trails', 1, 30).onChange(reset);
                settings.gui.add(settings, 'size', 25, 75).onFinishChange(reset);
                settings.gui.add(settings, 'friction', 0.45, 0.55).onFinishChange(reset);
                settings.gui.add(settings, 'dampening', 0.01, 0.4).onFinishChange(reset);
                settings.gui.add(settings, 'tension', 0.95, 0.999).onFinishChange(reset);

                document.body.appendChild(ctx.stats.domElement);
            }
        };

    })(window);

</script>



</body></html>

今天的分享到此就结束了，感谢您的阅读，如果确实帮到您，您可以动动手指转发给其他人。