Tween 算法及缓冲特效的JavaScript代码

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引入JS
- 3.0.0 2.2.0 2.1.4 2.1.3 2.1.2 2.1.1 2.1.0 2.0.3 2.0.2 2.0.1 2.0.0 1.12.0 1.11.3 1.11.2 1.11.1 1.11.0 1.10.2 1.10.1 1.10.0 1.9.1 1.9.0 1.8.3 1.8.2 1.8.1 1.8.0 1.7.2 1.7.1 1.7 1.6.4 1.6.2 1.6.1 1.4.4 1.4.3 1.4.2 1.4.1 1.4.0
- 1.7.3 1.7.2 1.7.1.0 1.7.0.0
- 2.0.0-beta.0 2.0.0-alpha.55 1.5.0-rc.0 1.4.8 1.4.0 1.3.20 1.2.29 1.1.5 1.0.8
- 1.8.3 1.7.0 1.6.0 1.5.2 1.4.4 1.3.3 1.2.4 1.1.7
- 1.10.4 1.9.7 1.8.10 1.7.8 1.6.3 1.5.4 1.4.6 1.3.3
- core1.6.0 core-compat1.6.0 core1.5.2 core-compat1.5.2 core-full-compat-yc1.4.5 core-full-compat1.4.5 core-full-nocompat-yc1.4.5 core-full-nocompat1.4.5
- 1.4.2 1.4.1 1.4.0 1.3.0 1.2.0 1.1.0
- 3.7.3 3.7.2 3.7.1 3.7.0 3.7 3.6.2 3.6.1 3.6

引入框架
- 1.4.5 1.4.4 1.4.3 1.4.2 1.4.1 1.4.0 1.3.2
- 1.11.4 1.11.3 1.11.2 1.11.1 1.11.0 1.10.4 1.10.3 1.10.2
- 3.3.6 3.3.5 3.3.0 3.2.0 2.3.2

汉王

HTML代码

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>Tween</title>
</head>
<body>
<div style="padding-left:50px;">
  <div style="position:relative; border:1px solid #000000; width:550px; height:50px;">
    <div id="idMove" style="width:50px; height:50px; background:#930; position:absolute;"></div>
  </div>
  <div style="position:relative;width:550px;height:200px; margin-top:50px;">
    <div id="idChart" style="border:1px solid #000;height:200px;"> </div>
    <div id="idLine" style="position:absolute;top:0;left:0;height:200px;width:1px;background:#000;"></div>
  </div>
</div>
<div>
  <p> Tween类型： <br />
    <label>
      <input name="vTween" type="radio" value="Linear" checked="checked" />
      Linear </label>
    <label>
      <input name="vTween" type="radio" value="Quad" />
      Quadratic </label>
    <label>
      <input name="vTween" type="radio" value="Cubic" />
      Cubic </label>
    <label>
      <input name="vTween" type="radio" value="Quart" />
      Quartic </label>
    <label>
      <input name="vTween" type="radio" value="Quint" />
      Quintic </label>
    <label>
      <input name="vTween" type="radio" value="Sine" />
      Sinusoidal </label>
    <br />
    <label>
      <input name="vTween" type="radio" value="Expo" />
      Exponential </label>
    <label>
      <input name="vTween" type="radio" value="Circ" />
      Circular </label>
    <label>
      <input name="vTween" type="radio" value="Elastic" />
      Elastic </label>
    <label>
      <input name="vTween" type="radio" value="Back" />
      Back </label>
    <label>
      <input name="vTween" type="radio" value="Bounce" />
      Bounce </label>
  </p>
  <p> ease类型： <br />
    <label>
      <input name="vEase" type="radio" value="easeIn" checked="checked" />
      easeIn </label>
    <label>
      <input name="vEase" type="radio" value="easeOut" />
      easeOut </label>
    <label>
      <input name="vEase" type="radio" value="easeInOut" />
      easeInOut </label>
  </p>
  <input id="idSpeed" type="button" value="减慢速度" />
  <input id="idRun" type="button" value=" Run " />
</div>
<script>
var Tween = {
 Linear: function(t,b,c,d){ return c*t/d + b; },
 Quad: {
  easeIn: function(t,b,c,d){
   return c*(t/=d)*t + b;
  },
  easeOut: function(t,b,c,d){
   return -c *(t/=d)*(t-2) + b;
  },
  easeInOut: function(t,b,c,d){
   if ((t/=d/2) < 1) return c/2*t*t + b;
   return -c/2 * ((--t)*(t-2) - 1) + b;
  }
 },
 Cubic: {
  easeIn: function(t,b,c,d){
   return c*(t/=d)*t*t + b;
  },
  easeOut: function(t,b,c,d){
   return c*((t=t/d-1)*t*t + 1) + b;
  },
  easeInOut: function(t,b,c,d){
   if ((t/=d/2) < 1) return c/2*t*t*t + b;
   return c/2*((t-=2)*t*t + 2) + b;
  }
 },
 Quart: {
  easeIn: function(t,b,c,d){
   return c*(t/=d)*t*t*t + b;
  },
  easeOut: function(t,b,c,d){
   return -c * ((t=t/d-1)*t*t*t - 1) + b;
  },
  easeInOut: function(t,b,c,d){
   if ((t/=d/2) < 1) return c/2*t*t*t*t + b;
   return -c/2 * ((t-=2)*t*t*t - 2) + b;
  }
 },
 Quint: {
  easeIn: function(t,b,c,d){
   return c*(t/=d)*t*t*t*t + b;
  },
  easeOut: function(t,b,c,d){
   return c*((t=t/d-1)*t*t*t*t + 1) + b;
  },
  easeInOut: function(t,b,c,d){
   if ((t/=d/2) < 1) return c/2*t*t*t*t*t + b;
   return c/2*((t-=2)*t*t*t*t + 2) + b;
  }
 },
 Sine: {
  easeIn: function(t,b,c,d){
   return -c * Math.cos(t/d * (Math.PI/2)) + c + b;
  },
  easeOut: function(t,b,c,d){
   return c * Math.sin(t/d * (Math.PI/2)) + b;
  },
  easeInOut: function(t,b,c,d){
   return -c/2 * (Math.cos(Math.PI*t/d) - 1) + b;
  }
 },
 Expo: {
  easeIn: function(t,b,c,d){
   return (t==0) ? b : c * Math.pow(2, 10 * (t/d - 1)) + b;
  },
  easeOut: function(t,b,c,d){
   return (t==d) ? b+c : c * (-Math.pow(2, -10 * t/d) + 1) + b;
  },
  easeInOut: function(t,b,c,d){
   if (t==0) return b;
   if (t==d) return b+c;
   if ((t/=d/2) < 1) return c/2 * Math.pow(2, 10 * (t - 1)) + b;
   return c/2 * (-Math.pow(2, -10 * --t) + 2) + b;
  }
 },
 Circ: {
  easeIn: function(t,b,c,d){
   return -c * (Math.sqrt(1 - (t/=d)*t) - 1) + b;
  },
  easeOut: function(t,b,c,d){
   return c * Math.sqrt(1 - (t=t/d-1)*t) + b;
  },
  easeInOut: function(t,b,c,d){
   if ((t/=d/2) < 1) return -c/2 * (Math.sqrt(1 - t*t) - 1) + b;
   return c/2 * (Math.sqrt(1 - (t-=2)*t) + 1) + b;
  }
 },
 Elastic: {
  easeIn: function(t,b,c,d,a,p){
   if (t==0) return b;  if ((t/=d)==1) return b+c;  if (!p) p=d*.3;
   if (!a || a < Math.abs(c)) { a=c; var s=p/4; }
   else var s = p/(2*Math.PI) * Math.asin (c/a);
   return -(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
  },
  easeOut: function(t,b,c,d,a,p){
   if (t==0) return b;  if ((t/=d)==1) return b+c;  if (!p) p=d*.3;
   if (!a || a < Math.abs(c)) { a=c; var s=p/4; }
   else var s = p/(2*Math.PI) * Math.asin (c/a);
   return (a*Math.pow(2,-10*t) * Math.sin( (t*d-s)*(2*Math.PI)/p ) + c + b);
  },
  easeInOut: function(t,b,c,d,a,p){
   if (t==0) return b;  if ((t/=d/2)==2) return b+c;  if (!p) p=d*(.3*1.5);
   if (!a || a < Math.abs(c)) { a=c; var s=p/4; }
   else var s = p/(2*Math.PI) * Math.asin (c/a);
   if (t < 1) return -.5*(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
   return a*Math.pow(2,-10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )*.5 + c + b;
  }
 },
 Back: {
  easeIn: function(t,b,c,d,s){
   if (s == undefined) s = 1.70158;
   return c*(t/=d)*t*((s+1)*t - s) + b;
  },
  easeOut: function(t,b,c,d,s){
   if (s == undefined) s = 1.70158;
   return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
  },
  easeInOut: function(t,b,c,d,s){
   if (s == undefined) s = 1.70158; 
   if ((t/=d/2) < 1) return c/2*(t*t*(((s*=(1.525))+1)*t - s)) + b;
   return c/2*((t-=2)*t*(((s*=(1.525))+1)*t + s) + 2) + b;
  }
 },
 Bounce: {
  easeIn: function(t,b,c,d){
   return c - Tween.Bounce.easeOut(d-t, 0, c, d) + b;
  },
  easeOut: function(t,b,c,d){
   if ((t/=d) < (1/2.75)) {
    return c*(7.5625*t*t) + b;
   } else if (t < (2/2.75)) {
    return c*(7.5625*(t-=(1.5/2.75))*t + .75) + b;
   } else if (t < (2.5/2.75)) {
    return c*(7.5625*(t-=(2.25/2.75))*t + .9375) + b;
   } else {
    return c*(7.5625*(t-=(2.625/2.75))*t + .984375) + b;
   }
  },
  easeInOut: function(t,b,c,d){
   if (t < d/2) return Tween.Bounce.easeIn(t*2, 0, c, d) * .5 + b;
   else return Tween.Bounce.easeOut(t*2-d, 0, c, d) * .5 + c*.5 + b;
  }
 }
}

var $ = function (id) {
 return "string" == typeof id ? document.getElementById(id) : id;
};

var Each = function(list, fun){
 for (var i = 0, len = list.length; i < len; i++) { fun(list[i], i); }
};

var fun, iChart = 550, iDuration = 100;

function Chart(){
 var a = [];
 for (var i = 0; i < iChart; i++) {
  a.push('<div style="background-color:#f60;font-size:0;width:3px;height:3px;position:absolute;left:' + (i-1) + 'px;top:' + (Math.ceil(fun(i,200,-200,iChart))) + 'px;"><\/div>');
 }
 $("idChart").innerHTML = a.join("");
}

$("idSpeed").onclick = function(){
 if(iDuration == 100){
  iDuration = 500; this.value = "加快速度";
 }else{
  iDuration = 100; this.value = "减慢速度";
 }
}
</script>
</body>
</html>

CSS代码

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JS代码

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名称

Tween 算法及缓冲特效的JavaScript代码

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描述

Tween 算法及缓冲特效的JavaScript代码，利用它可以做缓动、弹簧等很多动画效果，怎么利用flash的Tween类的算法，来做js的Tween算法，并利用它做一些简单的缓动效果呢，看懂了本代码你就明白了。