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不知道老网民们还记不记得这个魔性的时钟插件:

canvas版人体时钟的实现示例

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

标签:
canvas,人体时钟

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稳了!魔兽国服回归的3条重磅消息!官宣时间再确认!

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这里面让他访问的是一个国服的战网网址,com.cn和后面的zh都非常明白地表明这就是国服战网。

而他在复制这个网址并且进行登录之后,确实是网易的网址,也就是我们熟悉的停服之后国服发布的暴雪游戏产品运营到期开放退款的说明。这是一件比较奇怪的事情,因为以前都没有出现这样的情况,现在突然提示跳转到国服战网的网址,是不是说明了简体中文客户端已经开始进行更新了呢?