<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>动态爱心</title>
<style>
html, body {
height: 100%;
padding: 0;
margin: 0;
background: #000;
overflow:hidden;
}
canvas {
position: absolute;
width: 100%;
height: 100%;
}
h1{
position:absolute;
width: 100%;
top:5%;
text-align: center;
font-family: 'Love Ya Like A Sister', cursive;
font-size: 40px;
color: #ea80b0;
padding: 0 20px;
}
</style>
</head>
<body>
<canvas id="pinkboard"></canvas>
<script>
/
Settings
/
var settings = {
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 M?ller
/
(function(){var b=0;var c=["ms","moz","webkit","o"];for(var a=0;a<c.length&&!window.requestAnimationFrame;++a){window.requestAnimationFrame=window[c[a]+"RequestAnimationFrame"];window.cancelAnimationFrame=window[c[a]+"CancelAnimationFrame"]||window[c[a]+"CancelRequestAnimationFrame"]}if(!window.requestAnimationFrame){window.requestAnimationFrame=function(h,e){var d=new Date().getTime();var f=Math.max(0,16-(d-b));var g=window.setTimeout(function(){h(d+f)},f);b=d+f;return g}}if(!window.cancelAnimationFrame){window.cancelAnimationFrame=function(d){clearTimeout(d)}}}());
/
Point class
/
var Point = (function() {
function Point(x, y) {
this.x = (typeof x !== 'undefined') ? x : 0;
this.y = (typeof y !== 'undefined') ? y : 0;
}
Point.prototype.clone = function() {
return new Point(this.x, this.y);
};
Point.prototype.length = function(length) {
if (typeof length == 'undefined')
return Math.sqrt(this.x this.x + this.y this.y);
this.normalize();
this.x = length;
this.y = length;
return this;
};
Point.prototype.normalize = function() {
var length = this.length();
this.x /= length;
this.y /= length;
return this;
};
return Point;
})();
/
Particle class
/
var Particle = (function() {
function Particle() {
this.position = new Point();
this.velocity = new Point();
this.acceleration = new Point();
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 settings.particles.effect;
this.acceleration.y = dy settings.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 / settings.particles.duration);
context.globalAlpha = 1 - this.age / settings.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 = settings.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;
})();
/
Putting it all together
/
(function(canvas) {
var context = canvas.getContext('2d'),
particles = new ParticlePool(settings.particles.length),
particleRate = settings.particles.length / settings.particles.duration, // particles/sec
time;
// get point on heart with -PI <= t <= PI
function pointOnHeart(t) {
return new Point(
160 Math.pow(Math.sin(t), 3),
130 Math.cos(t) - 50 Math.cos(2 t) - 20 Math.cos(3 t) - 10 Math.cos(4 t) + 25
);
}
// creating the particle image using a dummy canvas
var image = (function() {
var canvas = document.createElement('canvas'),
context = canvas.getContext('2d');
canvas.width = settings.particles.size;
canvas.height = settings.particles.size;
// helper function to create the path
function to(t) {
var point = pointOnHeart(t);
point.x = settings.particles.size / 2 + point.x settings.particles.size / 350;
point.y = settings.particles.size / 2 - point.y settings.particles.size / 350;
return point;
}
// create the path
context.beginPath();
var t = -Math.PI;
var point = to(t);
context.moveTo(point.x, point.y);
while (t < Math.PI) {
t += 0.01; // baby steps!
point = to(t);
context.lineTo(point.x, point.y);
}
context.closePath();
// create the fill
context.fillStyle = '#ea80b0';
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 = pointOnHeart(Math.PI - 2 Math.PI Math.random());
var dir = pos.clone().length(settings.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-)sizing of the canvas
function onResize() {
canvas.width = canvas.clientWidth;
canvas.height = canvas.clientHeight;
}
window.onresize = onResize;
// delay rendering bootstrap
setTimeout(function() {
onResize();
render();
}, 10);
})(document.getElementById('pinkboard'));</script>
<h1 id="h1"></h1>
<b style=" position:absolute;
width: 50%;
top:80%;
left:25%;
text-align: center;
transform:translateY(-50%);
font-family: 'Love Ya Like A Sister', cursive;
font-size: 40px;
color: #ea80b0;
padding: 0 20px;">扛不住对你动心</b>
<audio autoplay="autopaly" loop="loop" id="audios" preload="auto">
<source src="http://music.163.com/song/media/outer/url?id=526464145.mp3" />
</audio>
<script>
window.onload=function starttime(){
document.onkeydown=function(){
var e=window.event||arguments[0];
if(e.keyCode==123){
alert("请尊重劳动成果！");
return false;
}else if((e.ctrlKey)&&(e.shiftKey)&&(e.keyCode==73)){
alert("请尊重劳动成果！");
return false;
}else if((e.ctrlKey)&&(e.keyCode==85)){//追加
return false;
}
};
document.oncontextmenu=function(){
alert("请尊重劳动成果！");
return false;
}
setInterval(function() {
time();
}, 1000);
}
function time() {
var nowtime = new Date().getTime(); // 现在时间转换为时间戳
var futruetime = new Date('2022/1/1').getTime(); // 未来时间转换为时间戳
var msec = nowtime-futruetime; // 毫秒 未来时间-现在时间
var time = (msec/1000); // 毫秒/1000
var day = parseInt(time/86400); // 天 2460601000
var hour = parseInt(time/3600)-24day; // 小时 6060 总小时数-过去的小时数=现在的小时数
var minute = parseInt(time%3600/60); // 分 -(day24) 以60秒为一整份 取余 剩下秒数 秒数/60 就是分钟数
var second = parseInt(time%60); // 以60秒为一整份 取余 剩下秒数
document.getElementById("h1").innerHTML = "宝贝，我们已经在一起：<br>"+day+"天"+hour+"小时"+minute+"分"+second+"秒"+"了";
}
</script>
</body>
</html>
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