Posted in HTML / CSS onJanuary 29, 2021
不知道老网民们还记不记得这个魔性的时钟插件：
作为网上冲浪十数载的网虫，不久前看到这个图瞬间破防，直接梦回10年前的QQ空间，感叹一下岁月蹉跎、时光荏苒、青春不在、不胜唏嘘。
十年后的今天，flash在各个浏览器都已经不再支持，已经是个不再那个只会用脚本打扮QQ空间的我，自然得用青春换来得技术还原一下自己的青春记忆。
首先感谢原作者提供的如此优秀好玩的插件： http://chabudai.org/blog/?p=59
这次为了图方便，就直接那pixi.js来上手做动画了，动画素材来源于油管视频，拿到PS逐帧抠图并导出，这个过程就不再详细介绍了。合成后的精灵图以及对应的json文件我会放在文章末尾。
核心的API是PIXI.AnimatedSprite。
代码也是很短，就直接放到下面了
<!doctype html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>HoneHoneClock</title>
<style>
* {
padding: 0;
margin: 0;
}
html, body {
width: 100%;
height: 100%;
}
body {
background-color: lightcyan;
}
canvas {
position: absolute;
left: 0;
top: 0;
width: 100%;
height: 100%;
z-index: 1;
}
</style>
</head>
<body>
<canvas class="canvas"></canvas>
<script src="pixi_5.3.4.min.js"></script>
<script src="Stats.min.js"></script>
<script>
(async function () {
const stats = new Stats()
document.body.appendChild(stats.domElement)
let pageWidth = 0
let pageHeight = 0
let clockHour1, clockHour2
let clockMin1, clockMin2
let clockSec1, clockSec2
const $canvas = document.querySelector('canvas')
const renderer = new PIXI.Renderer({
view: $canvas,
width: pageWidth,
height: pageHeight,
transparent: true,
autoDensity: true,
antialias: true
})
// 人体时钟
class Clock extends PIXI.Container {
constructor (name) {
super()
const textures = loader.resources[honeHoneClockJson].textures
let frames = []
let aniData = []
if (this.frames) {
frames = this.frames
aniData = this.aniData
}
else {
aniData = [
{
prefix: '0',
count: 6,
frameFrom: -1,
frameTo: -1,
},
{
prefix: '1',
count: 9,
frameFrom: -1,
frameTo: -1,
},
{
prefix: '2',
count: 7,
frameFrom: -1,
frameTo: -1,
},
{
prefix: '3',
count: 6,
frameFrom: -1,
frameTo: -1,
},
{
prefix: '4',
count: 9,
frameFrom: -1,
frameTo: -1,
},
{
prefix: '5',
count: 14,
frameFrom: -1,
frameTo: -1,
},
{
prefix: '6',
count: 7,
frameFrom: -1,
frameTo: -1,
},
{
prefix: '7',
count: 10,
frameFrom: -1,
frameTo: -1,
},
{
prefix: '8',
count: 7,
frameFrom: -1,
frameTo: -1,
},
{
prefix: '9',
count: 9,
frameFrom: -1,
frameTo: -1,
},
]
let k = 0
for (let i = 0; i < aniData.length; i++) {
const data = aniData[i]
data.frameFrom = k
for (let j = 1; j <= data.count; j++) {
k++
frames.push(textures[`${data.prefix}(${j}).png`])
}
data.frameTo = k - 1
}
this.frames = frames
this.aniData = aniData
}
const ani = new PIXI.AnimatedSprite(frames)
ani.anchor.set(0.5, 1)
ani.animationSpeed = 0.4
this.stopAt = -1
ani.onFrameChange = () => {
if (ani.currentFrame === this.stopAt) {
ani.stop()
}
}
this.addChild(ani)
this.name = name
this.ani = ani
this.num = -1
}
set number (number) {
if (this.num !== number) {
this.num = number
this.stopAt = this.aniData[number].frameTo
this.ani.gotoAndPlay(this.aniData[number].frameFrom)
}
}
}
const stage = new PIXI.Container()
stage.name = 'stage'
let clockWrap
const ticker = new PIXI.Ticker()
let now = new Date()
let lastTime = now.getTime()
const loop = function () {
stats.begin()
now = new Date()
if (now.getTime() - lastTime >= 1000) {
let hours = now.getHours()
if (hours > 9) {
clockHour1.number = Math.floor(hours / 10)
clockHour2.number = hours % 10
}
else {
clockHour1.number = 0
clockHour2.number = hours
}
let minutes = now.getMinutes()
if (minutes > 9) {
clockMin1.number = Math.floor(minutes / 10)
clockMin2.number = minutes % 10
}
else {
clockMin1.number = 0
clockMin2.number = minutes
}
let seconds = now.getSeconds()
if (seconds > 9) {
clockSec1.number = Math.floor(seconds / 10)
clockSec2.number = seconds % 10
}
else {
clockSec1.number = 0
clockSec2.number = seconds
}
lastTime = now.getTime()
}
renderer.render(stage)
stats.end()
}
ticker.add(loop)
const honeHoneClockJson = 'HoneHoneClock.json'
const loader = new PIXI.Loader()
loader.add([honeHoneClockJson])
loader.onComplete.add(async (res) => {
clockWrap = new PIXI.Container()
clockWrap.position.set((pageWidth - 630) * 0.5, (pageHeight + 150) * 0.5)
clockHour1 = new Clock('hour')
clockHour2 = new Clock('hour')
clockMin1 = new Clock('min')
clockMin2 = new Clock('min')
clockSec1 = new Clock('sec')
clockSec2 = new Clock('sec')
clockHour1.position.set(0, 0)
clockHour2.position.set(100, 0)
clockMin1.position.set(250, 0)
clockMin2.position.set(350, 0)
clockSec1.position.set(500, 0)
clockSec2.position.set(600, 0)
clockWrap.addChild(clockHour1)
clockWrap.addChild(clockHour2)
clockWrap.addChild(clockMin1)
clockWrap.addChild(clockMin2)
clockWrap.addChild(clockSec1)
clockWrap.addChild(clockSec2)
stage.addChild(clockWrap)
// 开始动画循环
ticker.start()
})
loader.load()
const onResize = (e) => {
pageWidth = document.body.clientWidth
pageHeight = document.body.clientHeight
if (clockWrap) {
clockWrap.position.set((pageWidth - 630) * 0.5, (pageHeight + 150) * 0.5)
}
renderer.resize(pageWidth, pageHeight)
}
onResize()
window.onresize = onResize
})()
</script>
</body>
</html>
完整代码戳这里
在线演示1 、 在线演示2
到此这篇关于canvas版人体时钟的实现示例的文章就介绍到这了,更多相关canvas人体时钟内容请搜索三水点靠木以前的文章或继续浏览下面的相关文章，希望大家以后多多支持三水点靠木！
canvas版人体时钟的实现示例
- Author -
oj8kay声明：登载此文出于传递更多信息之目的，并不意味着赞同其观点或证实其描述。
Reply on: @reply_date@
@reply_contents@