动态爱心-详细教程(小白也会)（HTML）
动态爱心
超级超级超级简单！！！赶紧做给你们的"Ta"看吧!
(最后有详细步骤)
视频效果：
话不多说直接上代码
点击查看代码
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
<style>
html, body {
height: 100%;
padding: 0;
margin: 0;
background: #000;
}
canvas {
position: absolute;
width: 100%;
height: 100%;
}
</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 Möller
*/
(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>
</BODY>
</HTML>
详细步骤
1. 在桌面新建一个txt文件
2. 双击打开，并将以上代码粘贴到文件中
3. 关闭文本文档并点击保存
4. 修改文件名后缀为'.html'
如果没有文件后缀名的小伙伴可以参照下面这张图的操作打开文件扩展名
5. 在弹窗中点击"是"
5. 之后会发现图标变成网页文件，双击打开即可
动态爱心-详细教程(小白也会)（HTML）的更多相关文章
- Python环境搭建—安利Python小白的Python安装详细教程
人生苦短,我用Python.众所周知,Python目前越来越火,学习Python的小伙伴也越来越多.最近看到群里的小伙伴经常碰到不会安装Python或者不知道去哪下载Python安装包等系列问题,为了 ...
- Python环境搭建—安利Python小白的Python和Pycharm安装详细教程
人生苦短,我用Python.众所周知,Python目前越来越火,学习Python的小伙伴也越来越多.最近看到群里的小伙伴经常碰到不会安装Python或者不知道去哪下载Python安装包等系列问题,为了 ...
- [分享] 从定制Win7母盘到封装详细教程 By BILL （ 10月23日补充说明 ）
[分享] 从定制Win7母盘到封装详细教程 By BILL ( 10月23日补充说明 ) billcheung 发表于 2011-10-23 00:07:49 https://www.itsk.com ...
- Solr集群搭建详细教程（一）
一.Solr集群的系统架构 注:欢迎大家转载,非商业用途请在醒目位置注明本文链接和作者名dijia478,商业用途请联系本人dijia478@163.com. SolrCloud(solr 云)是So ...
- 转载：python + requests实现的接口自动化框架详细教程
转自https://my.oschina.net/u/3041656/blog/820023 摘要: python + requests实现的接口自动化框架详细教程 前段时间由于公司测试方向的转型,由 ...
- NumPy 超详细教程（1）：NumPy 数组
系列文章地址 NumPy 最详细教程(1):NumPy 数组 NumPy 超详细教程(2):数据类型 NumPy 超详细教程(3):ndarray 的内部机理及高级迭代 文章目录 Numpy 数组:n ...
- Spring入门详细教程（三）
前言 本篇紧接着spring入门详细教程(二),建议阅读本篇前,先阅读第一篇和第二篇.链接如下: Spring入门详细教程(一) https://www.cnblogs.com/jichi/p/101 ...
- Spring入门详细教程（二）
前言 本篇紧接着spring入门详细教程(一),建议阅读本篇前,先阅读第一篇.链接如下: Spring入门详细教程(一) https://www.cnblogs.com/jichi/p/1016553 ...
- eclipse怎么导入maven项目 eclipse导入maven项目详细教程
转自:http://www.pc6.com/infoview/Article_114542.html Eclipse怎么导入maven项目一直是困扰着大量程序猿和刚上手小白们的问题,使用eclipse ...
随机推荐
- 你必须学UML之理论篇
1.前言 对于当前社会背景下从事软件开发的工作者而言,"写代码"实际上并不是唯一的工作.特别在一些中小型的企业当中,这些企业往往对于开发者的要求,不单单停留在写代码完成相应功能上, ...
- LOJ#6089 小 Y 的背包计数问题 - DP精题
题面 题解 (本篇文章深度剖析,若想尽快做出题的看官可以参考知名博主某C202044zxy的这篇题解:https://blog.csdn.net/C202044zxy/article/details/ ...
- java数组---数组的使用（打印，求和，最大值）
public static void main(String[] args) { int[] arrays={1,2,3,4,5}; //打印该数组 for (int i = 0; i < ar ...
- KingbaseES DENSE_RANK 函数用法
DENSE_RANK()函数用于为结果集分区内的每一行分配一个排名,排名值之间没有差距,函数为结果集的每个分区中的每一行分配一个等级. 与 RANK() 函数不同的是,DENSE_RANK() 函数总 ...
- filebeat客户端传输cisco日志到elasticsearch
一.安装相应版本的filebeat wget https://artifacts.elastic.co/downloads/beats/filebeat/filebeat-7.5.2-x86_64.r ...
- js之页面列表加载常用方法总结
导语:最近由于一些事情需要处理,所以没来得及写技术总结了.今天终于可以坐下来好好的梳理一下脉络,说一下那个在日常前端开发过程中,常用到的页面列表加载的方法总结.这里介绍三种方法,分别是分页加载.按钮加 ...
- [BJDCTF2020]Easy MD5 WP
老样子 打开看看 你会发现 啥也没有 有一个输入框,随便输入看看 抓包发现跳转leveldo4.php 同时看到 hint 里面有select * from 'admin' where passwor ...
- C# 中的那些锁，在内核态都是怎么保证同步的？
一:背景 1. 讲故事 其实这个问题是前段时间有位朋友咨询我的,由于问题说的比较泛,不便作答,但想想梳理一下还是能回答一些的,这篇就来聊一聊下面这几个锁. Interlocked AutoResetE ...
- 9. Ceph 基础篇 - Crush Maps
文章转载自:https://mp.weixin.qq.com/s?__biz=MzI1MDgwNzQ1MQ==&mid=2247485302&idx=1&sn=00a3a204 ...
- 监控Redis集群，有两种方法
前提条件 redis集群:已搭建三主三从(三台主机) prometheus.grafana已安装 三台主机ip: 192.168.0.39,192.168.0.164,192.168.0.68 第一种 ...