gsap模拟人头攒动的人群聚集动画效果-html代码-BFW代码库

gsap模拟人头攒动的人群聚集动画效果

代码语言：html

所属分类：动画

代码描述：gsap模拟人头攒动的人群聚集动画效果

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">

<style>
html, body {
  height: 100%;
}
body {
  margin: 0;
}

#canvas {
  width: 100%;
  height: 100%;
}
</style>

</head>
<body translate="no">
<canvas id="canvas"></canvas>
<script type="text/javascript" src="http://repo.bfw.wiki/bfwrepo/js/gsap.3.2.4.js"></script>
<script>
console.clear()
console.log('lsakdfalskjdflnksd')

const config = {
  src: 'http://repo.bfw.wiki/bfwrepo/image/5e950a2225b53.png',
  rows: 15,
  cols: 7
}

// UTILS

const randomRange = (min, max) => min + Math.random() * (max - min)

const randomIndex = (array) => randomRange(0, array.length) | 0

const removeFromArray = (array, i) => array.splice(i, 1)[0]

const removeItemFromArray = (array, item) => removeFromArray(array, array.indexOf(item))

const removeRandomFromArray = (array) => removeFromArray(array, randomIndex(array))

const getRandomFromArray = (array) => (
  array[randomIndex(array) | 0]
)

// TWEEN FACTORIES

const resetPeep = ({ stage, peep }) => {
  const direction = Math.random() > 0.5 ? 1 : -1
  // using an ease function to skew random to lower values to help hide that peeps have no legs
  const offsetY = 100 - 250 * gsap.parseEase('power2.in')(Math.random())
  const startY = stage.height - peep.height + offsetY
  let startX
  let endX
  
  if (direction === 1) {
    startX = -peep.width
    endX = stage.width
    peep.scaleX = 1
  } else {
    startX = stage.width + peep.width
    endX = 0
    peep.scaleX = -1
  }
  
  peep.x = startX
  peep.y = startY
  peep.anchorY = startY
  
  return {
    startX,
    startY,
    endX
  }
}

const normalWalk = ({ peep, props }) => {
  const {
    startX,
    startY,
    endX
  } = props

  const xDuration = 10
  const yDuration = 0.25
  
  const tl = gsap.timeline()
  tl.timeScale(randomRange(0.5, 1.5))
  tl.to(peep, {
    duration: xDuration,
    x: endX,
    ease: 'none'
  }, 0)
  tl.to(peep, {
    duration: yDuration,
    repeat: xDuration / yDuration,
    yoyo: true,
    y: startY - 10
  }, 0)
    
  return tl
}

const walks = [
  normalWalk,
]

// CLASSES

class Peep {
  constructor({
    image,
    rect,
  }) {
    this.image = image
    this.setRect(rect)
    
    this.x = 0
    this.y = 0
    this.anchorY = 0
    this.scaleX = 1
    this.walk = null
  }
  
  setRect (rect) {
    this.rect = rect
    this.width = re.........完整代码请登录后点击上方下载按钮下载查看