<!DOCTYPE HTML PUBLIC "-//W
3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> （づ￣
3￣）づ╭❤～</TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
<META charset="UTF-8">
<style>
html, body {
height: 100%;
padd
ing: 0;
marg
in: 0;
background: #000;
}
canvas {
position: absolute;
width: 100%;
height: 100%;
}
.child{
position: fixed;
top:50%;
left: 50%;
marg
in-top: -75px;
marg
in-left:-100px ;
}
.child1{
position: fixed;
style=" position:absolute;
width: 41%;
top:89%;
left:15%;
text-align: center;
transform:translateY(-50%);
font-family: &#
39;Love Ya Like A Sister&#
39;, cursive;
font-size: 40px;
color: #c70012;
padd
ing: 0 20px;
}
h4{font-size: 18px;color:#EA80B0;position: relative;left: -40px;}
</style>
</HEAD>
<BODY>
<div class="child"><h4>づ╭❤～ 我LOVE你づ╭❤～</h4></div>
<div id="bl
ink" class="child1">if you never give up ,i will
in life and death</div>
<canvas id="p
inkboard"></canvas>
<script>
function changeColor(){
var color="#f00|#0f0|#00f|#880|#808|#088|yellow|green|blue|gray";
color=color.split("|");
document.getElementById("bl
ink").style.color=color[parse
Int(Math.random() * color.length)];
}
set
Interval("changeColor()",200);
/*
* Sett
ings
*/
var sett
ings = {
particles: {
length: 500, // maximum amount of particles
duration: 2, // particle duration
in sec
velocity: 100, // particle velocity
in pixels/sec
effect: -0.75, // play with this for a nice effect
size:
30, // particle size
in pixels
},
};
/*
* RequestAnimationFrame polyfill by Erik Möller
*/
(function(){var b=0;var c=["ms","moz","
webkit","o"];for(var a=0;a<c.length&&!w
indow.requestAnimationFrame;++a){w
indow.requestAnimationFrame=w
indow[c[a]+"RequestAnimationFrame"];w
indow.cancelAnimationFrame=w
indow[c[a]+"CancelAnimationFrame"]||w
indow[c[a]+"CancelRequestAnimationFrame"]}if(!w
indow.requestAnimationFrame){w
indow.requestAnimationFrame=function(h,e){var d=
new Date().getTime();var f=Math.max(0,16-(d-b));var g=w
indow.setTimeout(function(){h(d+f)},f);b=d+f;return g}}if(!w
indow.cancelAnimationFrame){w
indow.cancelAnimationFrame=function(d){clearTimeout(d)}}}());
/*
* Po
int class
*/
var Po
int = (function() {
function Po
int(x, y) {
this.x = (typeof x !== &#
39;undef
ined&#
39;) ? x : 0;
this.y = (typeof y !== &#
39;undef
ined&#
39;) ? y : 0;
}
Po
int.prototype.clone = function() {
return
new Po
int(this.x, this.y);
};
Po
int.prototype.length = function(length) {
if (typeof length == &#
39;undef
ined&#
39;)
return Math.sqrt(this.x * this.x + this.y * this.y);
this.normalize();
this.x *= length;
this.y *= length;
return this;
};
Po
int.prototype.normalize = function() {
var length = this.length();
this.x /= length;
this.y /= length;
return this;
};
return Po
int;
})();
/*
* Particle class
*/
var Particle = (function() {
function Particle() {
this.position =
new Po
int();
this.velocity =
new Po
int();
this.acceleration =
new Po
int();
this.age = 0;
}
Particle.prototype.
initialize = function(x, y, dx, dy) {
this.position.x = x;
this.position.y = y;
this.velocity.x = dx;
this.velocity.y = dy;
this.acceleration.x = dx * sett
ings.particles.effect;
this.acceleration.y = dy * sett
ings.particles.effect;
this.age = 0;
};
Particle.prototype.update = function(deltaTime) {
this.position.x += this.velocity.x * deltaTime;
this.position.y += this.velocity.y * deltaTime;
this.velocity.x += this.acceleration.x * deltaTime;
this.velocity.y += this.acceleration.y * deltaTime;
this.age += deltaTime;
};
Particle.prototype.draw = function(context, image) {
function ease(t) {
return (--t) * t * t + 1;
}
var size = image.width * ease(this.age / sett
ings.particles.duration);
context.globalAlpha = 1 - this.age / sett
ings.particles.duration;
context.drawImage(image, this.position.x - size / 2, this.position.y - size / 2, size, size);
};
return Particle;
})();
/*
* ParticlePool class
*/
var ParticlePool = (function() {
var particles,
firstActive = 0,
firstFree = 0,
duration = sett
ings.particles.duration;
function ParticlePool(length) {
// create and populate particle pool
particles =
new Array(length);
for (var i = 0; i < particles.length; i++)
particles[i] =
new Particle();
}
ParticlePool.prototype.add = function(x, y, dx, dy) {
particles[firstFree].
initialize(x, y, dx, dy);
// handle circular queue
firstFree++;
if (firstFree == particles.length) firstFree = 0;
if (firstActive == firstFree ) firstActive++;
if (firstActive == particles.length) firstActive = 0;
};
ParticlePool.prototype.update = function(deltaTime) {
var i;
// update active particles
if (firstActive < firstFree) {
for (i = firstActive; i < firstFree; i++)
particles[i].update(deltaTime);
}
if (firstFree < firstActive) {
for (i = firstActive; i < particles.length; i++)
particles[i].update(deltaTime);
for (i = 0; i < firstFree; i++)
particles[i].update(deltaTime);
}
// remove
inactive particles
while (particles[firstActive].age >= duration && firstActive != firstFree) {
firstActive++;
if (firstActive == particles.length) firstActive = 0;
}
};
ParticlePool.prototype.draw = function(context, image) {
// draw active particles
if (firstActive < firstFree) {
for (i = firstActive; i < firstFree; i++)
particles[i].draw(context, image);
}
if (firstFree < firstActive) {
for (i = firstActive; i < particles.length; i++)
particles[i].draw(context, image);
for (i = 0; i < firstFree; i++)
particles[i].draw(context, image);
}
};
return ParticlePool;
})();
/*
* Putt
ing it all toge
ther
*/
(function(canvas) {
var context = canvas.getContext(&#
39;2d&#
39;),
particles =
new ParticlePool(sett
ings.particles.length),
particleRate = sett
ings.particles.length / sett
ings.particles.duration, // particles/sec
time;
// get po
int on heart with -PI <= t <= PI
function po
intOnHeart(t) {
return
new Po
int(
160 * Math.pow(Math.s
in(t),
3),
1
30 * Math.cos(t) - 50 * Math.cos(2 * t) - 20 * Math.cos(
3 * t) - 10 * Math.cos(4 * t) + 25
);
}
// creat
ing
the particle image us
ing a dummy canvas
var image = (function() {
var canvas = document.createElement(&#
39;canvas&#
39;),
context = canvas.getContext(&#
39;2d&#
39;);
canvas.width = sett
ings.particles.size;
canvas.height = sett
ings.particles.size;
// helper function to create
the path
function to(t) {
var po
int = po
intOnHeart(t);
po
int.x = sett
ings.particles.size / 2 + po
int.x * sett
ings.particles.size /
350;
po
int.y = sett
ings.particles.size / 2 - po
int.y * sett
ings.particles.size /
350;
return po
int;
}
// create
the path
context.beg
inPath();
var t = -Math.PI;
var po
int = to(t);
context.moveTo(po
int.x, po
int.y);
while (t < Math.PI) {
t += 0.01; // baby steps!
po
int = to(t);
context.l
ineTo(po
int.x, po
int.y);
}
context.closePath();
// create
the fill
context.fillStyle = &#
39;#ea80b0&#
39;;
context.fill();
// create
the image
var image =
new Image();
image.src = canvas.toDataURL();
return image;
})();
// render that
thing!
function render() {
// next animation frame
requestAnimationFrame(render);
// update time
var
newTime =
new Date().getTime() / 1000,
deltaTime =
newTime - (time ||
newTime);
time =
newTime;
// clear canvas
context.clearRect(0, 0, canvas.width, canvas.height);
// create
new particles
var amount = particleRate * deltaTime;
for (var i = 0; i < amount; i++) {
var pos = po
intOnHeart(Math.PI - 2 * Math.PI * Math.random());
var dir = pos.clone().length(sett
ings.particles.velocity);
particles.add(canvas.width / 2 + pos.x, canvas.height / 2 - pos.y, dir.x, -dir.y);
}
// update and draw particles
particles.update(deltaTime);
particles.draw(context, image);
}
// handle (re-)siz
ing of
the canvas
function onResize() {
canvas.width = canvas.clientWidth;
canvas.height = canvas.clien
tHeight;
}
w
indow.onresize = onResize;
// delay render
ing bootstrap
setTimeout(function() {
onResize();
render();
}, 10);
})(document.getElementById(&#
39;p
inkboard&#
39;));
</script>
//javasript 代码
</BODY>
</HTML>
————————————————
哪些部分是html，css，JavaScript
本文介绍了 WebKit 3.10 版本中引入的一系列新特性，包括对 HTML5、CSS3 和 JavaScript API 的增强支持。这些更新旨在提升网页应用的性能和用户体验。
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