特效

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
 <head> 
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
  <title>特效</title> 
  <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;
}
html, body {
    margin: 0;
    padding: 0;
    font: 16px/1.4 'Lato', sans-serif;
    color: #fefeff;
    -webkit-font-smoothing: antialiased;
    font-smoothing: antialiased;
}
body {
    background: rgb(8,5,16);
    overflow:hidden;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}
 
h1 {
    font: 2.75em 'Cinzel', serif;
    font-weight: bold;
    letter-spacing: 0.35em;
    text-shadow: 0 0 25px rgba(254,254,255,0.85);
}
h2 {
    font: 1.45em 'Cinzel', serif;
    font-weight: 400;
    letter-spacing: 0.5em;
    text-shadow: 0 0 25px rgba(254,254,255,0.85);
    text-transform: lowercase;
}
 
[class^="letter"] {
    -webkit-transition: opacity 3s ease;
    -moz-transition: opacity 3s ease;
    transition: opacity 3s ease;
}
.letter-0  { transition-delay: 0.2s; }
.letter-1  { transition-delay: 0.4s; }
.letter-2  { transition-delay: 0.6s; }
.letter-3  { transition-delay: 0.8s; }
.letter-4  { transition-delay: 1.0s; }
.letter-5  { transition-delay: 1.2s; }
.letter-6  { transition-delay: 1.4s; }
.letter-7  { transition-delay: 1.6s; }
.letter-8  { transition-delay: 1.8s; }
.letter-9  { transition-delay: 2.0s; }
.letter-10 { transition-delay: 2.2s; }
.letter-11 { transition-delay: 2.4s; }
.letter-12 { transition-delay: 2.6s; }
.letter-13 { transition-delay: 2.8s; }
.letter-14 { transition-delay: 3.0s; }
 
h1, h2 {
    visibility: hidden;
    -webkit-transform: translate3d(0, 0, 0);
    -moz-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
}    
h1.transition-in,
h2.transition-in {
    visibility: visible;
}
h1 [class^="letter"], 
h2 [class^="letter"] {
    opacity: 0;
}
h1.transition-in [class^="letter"],
h2.transition-in [class^="letter"] {
    opacity: 1;
}
 
#container {
display: table;
position: absolute;
z-index: 20;
width: 100%;
height: 100%;
text-align: center;
cursor: none;
left: 15px;
}
#container > div {
    display: table-cell;
    vertical-align: middle;
}
#container p {
    position: absolute;
    width: 100%;
    left: 0;
    bottom: 25px;
    font-size: 0.8em;
    letter-spacing: 0.1em;
    font-weight: 300;
    color: #76747a;
    -webkit-font-smoothing: subpixel-antialiased;
    font-smoothing: subpixel-antialiased; 
}
#container p strong {
color: #b3abc5;
font-size: 5em;
}
#container p span {
    font-size: 0.75em;
    padding: 0 2px;
}
 
#canvas {
    position: absolute;
    z-index: 10;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    cursor: none;
}
 
#stats { 
    position: absolute; 
    z-index: 10; 
    left: 10px; 
    top: 10px; 
}
 
.dg.ac {
    z-index: 100 !important;
}
 
#container div p strong a {
color: #999;
font-size: 0.5em;
}
body,td,th {
font-family: Lato, sans-serif;
}
a:link {
text-decoration: none;
}
a:visited {
text-decoration: none;
}
a:hover {
text-decoration: none;
}
a:active {
text-decoration: none;
}
</style> 
 </head> 
 <body ondragstart="window.event.returnValue=false" oncontextmenu="window.event.returnValue=false" onselectstart="event.returnValue=false"> 
  <div id="container"> 
   <div> 
    <h1 id="h1">Dyla www.web-shenhuaiee.com </h1> 
    <h2 id="h2">个人网站</h2> 
    <p>&nbsp;</p> 
    <p><strong><a href="http://www.web-shenhuaiee.com">进入主站</a></strong></p>
    <p>&nbsp;</p> 
    <p>&nbsp;</p> 
    <p>&nbsp;</p> 
    <p>&nbsp;</p> 
    <p>&nbsp;</p> 
   </div> 
  </div> 
  <canvas id="canvas"></canvas> 
  <audio autoplay="autoplay"> 
   <source src="http://ojei4mnvl.bkt.clouddn.com/The-Mass.mp3" type="audio/mpeg"></source> 
  </audio> 
  <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(8,5,16,0.4)';
    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: 
            // console.log(event.keyCode);
    }
}
 
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 = '';
    
    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>

 

posted @ 2018-11-10 14:10  Dyla  阅读(402)  评论(0编辑  收藏  举报