时间版运动框架
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关于运动
- 速度的运动 通过速度来控制元素的 位移 / 折叠 / 淡入淡出
- 时间的简单运动 通过时间来控制元素的 位移 / 折叠 / 淡入淡出(jQuery)
时间的运动 基于一些数学公式
以匀速运动例子==> 在路程的每一个点 速度都一样.
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <meta name="Author" content=" "> <title>Document</title> <style type="text/css"> *{margin: 0;padding: 0;} a{text-decoration: none;} ul,li{list-style: none;} body{font-size: 14px;font-family: "微软雅黑";} #box{width: 100px;height: 100px;background: red;position: relative;opacity: .2;filter:alpha(opacity=20);} </style></head><body> <div id="box"></div> <script type="text/javascript"> /* 关于运动 速度的运动 通过速度来控制元素的 位移 / 折叠 / 淡入淡出 时间的运动 通过时间来控制元素的 位移 / 折叠 / 淡入淡出(jQuery) 时间的运动 基于一些数学公式 匀速运动 在路程的每一个点 速度都一样 */ var boxDom = document.getElementById("box"); //第一个问题 opacity //第二个问题 要把两句话变成一句话 需要传入一个对象 //move(boxDom,{width:300,height:400},1500); boxDom.onclick = function(){ // move(boxDom,"opacity",100,1500); move(boxDom,{"left":300,"opacity":100,"width":200,"height":200},1500,function(){ move(this,{"left":0,"opacity":20,"width":100,"height":100},500) }); } function move(obj,json,time,callBack){ //一般定时器 结束后要清除 clearInterval(obj.timer); var cur = {}; var end = {}; for(var attr in json){ if(attr=="opacity"){ cur[attr] = getStyle(obj,attr)*100 || 0; }else{ cur[attr] = parseInt(getStyle(obj,attr)) || 0; } end[attr] = json[attr]; }; var nTime = new Date(); /* S = vt;===>linear匀速运动作为例子 St= (Tt-T0)/Time * (S-S0) + S0 */ // St= (Tt-T0)/Time * (S-S0) + S0 //== >St= Tt时间点 St的位移是多少. obj.timer = setInterval(function(){ var sTime = new Date(); var prop = (sTime - nTime)/time; //duration 持续时间 if(prop>=1){ clearInterval(obj.timer); callBack&&callBack.call(obj); prop = 1; } var s = undefined; for(var attr in json){ s = prop * (end[attr]-cur[attr]) + cur[attr]; if(attr=="opacity"){ // IE obj.style.filter = "alpha(opacity="+s+")"; obj.style[attr] = s/100 ; }else{ obj.style[attr] = s + "px"; } } },13); } function getStyle(obj,attr){ return obj.currentStyle?obj.currentStyle[attr]:getComputedStyle(obj,null)[attr]; } </script></body></html>
图解:
添加其他运动曲线
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <meta name="Author" content=" "> <title>Document</title> <style type="text/css"> *{margin: 0;padding: 0;} a{text-decoration: none;} ul,li{list-style: none;} body{font-size: 14px;font-family: "微软雅黑";} #box{width: 100px;height: 100px;background: red;position: relative;opacity: .2;filter:alpha(opacity=20); transition: transform 3s;} </style></head><body> <div id="box"></div> <script type="text/javascript"> var boxDom = document.getElementById("box"); //第一个问题 opacity //第二个问题 要把两句话变成一句话 需要传入一个对象 //move(boxDom,{width:300,height:400},1500); boxDom.onclick = function(){ // move(boxDom,"opacity",100,1500); move(boxDom,{"left":300,"opacity":100,"width":200,"height":200},1500,"easeBothStrong",function(){ move(this,{"left":0,"opacity":20,"width":100,"height":100},500,"easeBoth",function(){ this.style.transform = "scale(.5)"; }) }); } //mc ==> motion curve function move(obj,json,time,mc,callBack){ //一般定时器 结束后要清除 clearInterval(obj.timer); var cur = {}; var end = {}; for(var attr in json){ if(attr=="opacity"){ cur[attr] = getStyle(obj,attr)*100 || 0; }else{ cur[attr] = parseInt(getStyle(obj,attr)) || 0; } end[attr] = json[attr]; }; var sTime = new Date(); /* t, b, c, d time : current time==>(nTime-sTime)现在过去的时间 beginning value : cur change in value : 变化量(end-cur) duration : 持续时间 time */ obj.timer = setInterval(function(){ // var sTime = new Date(); var t = new Date() - sTime; //duration 持续时间 if(t>=time){ t = time; clearInterval(obj.timer); callBack&&callBack.call(obj); } var s = undefined; for(var attr in json){ //var s = prop * (end[attr] - cur[attr]) + cur[attr]; var b = cur[attr]; var c = end[attr]-b; s = Tween[mc](t,b,c,time); if(attr=="opacity"){ obj.style.filter = "alpha(opacity="+s+")"; obj.style[attr] = s/100 ; }else{ obj.style[attr] = s + "px"; } }; },13); //数学公式 var Tween = { linear: function (t, b, c, d){ //匀速 return c*t/d + b; // t/d = prop; }, easeIn: function(t, b, c, d){ //加速曲线 return c*(t/=d)*t + b; }, easeOut: function(t, b, c, d){ //减速曲线 return -c *(t/=d)*(t-2) + b; }, easeBoth: function(t, b, c, d){ //加速减速曲线 if ((t/=d/2) < 1) { return c/2*t*t + b; } return -c/2 * ((--t)*(t-2) - 1) + b; }, easeInStrong: function(t, b, c, d){ //加加速曲线 return c*(t/=d)*t*t*t + b; }, easeOutStrong: function(t, b, c, d){ //减减速曲线 return -c * ((t=t/d-1)*t*t*t - 1) + b; }, easeBothStrong: function(t, b, c, d){ //加加速减减速曲线 if ((t/=d/2) < 1) { return c/2*t*t*t*t + b; } return -c/2 * ((t-=2)*t*t*t - 2) + b; }, elasticIn: function(t, b, c, d, a, p){ //正弦衰减曲线(弹动渐入) if (t === 0) { return b; } if ( (t /= d) == 1 ) { return b+c; } if (!p) { p=d*0.3; } 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; }, elasticOut: function(t, b, c, d, a, p){ //正弦增强曲线(弹动渐出) if (t === 0) { return b; } if ( (t /= d) == 1 ) { return b+c; } if (!p) { p=d*0.3; } 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; }, elasticBoth: function(t, b, c, d, a, p){ if (t === 0) { return b; } if ( (t /= d/2) == 2 ) { return b+c; } if (!p) { p = d*(0.3*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 - 0.5*(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 )*0.5 + c + b; }, backIn: function(t, b, c, d, s){ //回退加速(回退渐入) if (typeof s == 'undefined') { s = 1.70158; } return c*(t/=d)*t*((s+1)*t - s) + b; }, backOut: function(t, b, c, d, s){ if (typeof s == 'undefined') { s = 3.70158; //回缩的距离 } return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b; }, backBoth: function(t, b, c, d, s){ if (typeof 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; }, bounceIn: function(t, b, c, d){ //弹球减振(弹球渐出) return c - Tween['bounceOut'](d-t, 0, c, d) + b; }, bounceOut: 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 + 0.75) + b; } else if (t < (2.5/2.75)) { return c*(7.5625*(t-=(2.25/2.75))*t + 0.9375) + b; } return c*(7.5625*(t-=(2.625/2.75))*t + 0.984375) + b; }, bounceBoth: function(t, b, c, d){ if (t < d/2) { return Tween['bounceIn'](t*2, 0, c, d) * 0.5 + b; } return Tween['bounceOut'](t*2-d, 0, c, d) * 0.5 + c*0.5 + b; } }; } function getStyle(obj,attr){ return obj.currentStyle?obj.currentStyle[attr]:getComputedStyle(obj,null)[attr]; } </script></body></html>
结合 之前的速度版的,封装成Animate.js
/** * * @authors weikeduopupu * @date 2017-03-26 17:15:57 * @version $Id$ *//* obj, 元素对象 json, 改变的属性attr 和值 { width: 100, height:100,left:300,opacity:100..... } time,===>duration持续时间 mc, 运动曲线 linear,easeIn... callBack */// 时间版(function(win){ function move(obj,json,time,mc,callBack){ //一般定时器 结束后要清除 clearInterval(obj.timer); var cur = {}; var end = {}; for(var attr in json){ if(attr=="opacity"){ cur[attr] = getStyle(obj,attr)*100 || 0; }else{ cur[attr] = parseInt(getStyle(obj,attr)) || 0; } end[attr] = json[attr]; }; var sTime = new Date(); /* t, b, c, d time : current time==>(nTime-sTime)现在过去的时间 beginning value : cur change in value : 变化量(end-cur) duration : 持续时间 time */ obj.timer = setInterval(function(){ // var sTime = new Date(); var t = new Date() - sTime; //duration 持续时间 if(t>=time){ t = time; clearInterval(obj.timer); callBack&&callBack.call(obj); } var s = undefined; for(var attr in json){ //var s = prop * (end[attr] - cur[attr]) + cur[attr]; var b = cur[attr]; var c = end[attr]-b; s = Tween[mc](t,b,c,time); if(attr=="opacity"){ obj.style.filter = "alpha(opacity="+s+")"; obj.style[attr] = s/100 ; }else{ obj.style[attr] = s + "px"; } }; },13); var Tween = {....}; } win.AnimateTime = move;})(window);// 速度版(function(win){ function move(dom,json,callBack){ clearInterval(dom.timer); dom.timer = setInterval(function(){ var mark = true; for(var attr in json){ var cur = null; var speed = null; var target = json[attr]; if(attr == "opacity"){ // 传入格式为 opacity: 1;的情况 cur = getStyle(dom,attr)*100; target = target*100; speed = ( target - cur)*0.2; }else{ //如果没写 默认填充成0 cur = parseInt(getStyle(dom,attr))||0; speed = (target - cur)*0.2; } //console.log(cur); speed = speed>0?Math.ceil(speed):Math.floor(speed); if(cur != target){ if(attr == "opacity"){ //IE opacity兼容问题 dom.style.filter = "alpha(opacity="+(cur+speed)+")"; dom.style[attr] = (cur + speed)/100; }else{ dom.style[attr] = cur + speed + "px"; } mark = false; }; } if(mark){ clearInterval(dom.timer); callBack && callBack.call(dom); } },1000/30); } win.AnimateSpeed = move;})(window); function getStyle(obj,attr){ return obj.currentStyle?obj.currentStyle[attr]:getComputedStyle(obj,null)[attr]; } function $(dom){ if(typeof dom == "function"){ window.onload = dom; }else if((typeof dom).toLowerCase() == "string"){ return document.querySelector(dom); } }
引用测试
<!DOCTYPE html><html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta name="Author" content=""> <meta name="Keywords" content=""> <meta name="Description" content=""> <title>Document</title> <style type="text/css"> * {margin: 0; padding: 0;} a {text-decoration: none;} ul,li {list-style: none;} body {font-family: "Microsoft yahei";} #box {width: 100px; height: 100px; position: relative; opacity: .1; background-color: #373F66; filter: alpha(opacity=10); transition: transform .5s; color: #fff;} #box1 {width: 100px; height: 100px; position: relative; opacity: .1; background-color: #373F66; filter: alpha(opacity=10); margin-top: 20px; transition: transform .5s; color: #fff;} </style> </head><body> <div id="box"></div> <div id="box1"></div><script type="text/javascript" src="Animate.js"></script><script type="text/javascript"> $(function(){ var boxDom = $("#box"); var boxDom1 = $("#box1"); // console.log(boxDom1); boxDom.onclick = function(){ AnimateSpeed(this,{"width":50,"height":50,"left":300,"opacity":1},function(){ AnimateSpeed(this,{"width":100,"height":100,"left":0,"opacity":.8},function(){ this.style.transform = "rotate(360deg)"; this.innerHTML = "速度版"; }) }) }; boxDom1.onclick = function(){ AnimateTime(this,{"width":50,"height":50,"left":300,"opacity":100},2000,"linear",function(){ AnimateTime(this,{"width":100,"height":100,"left":0,"opacity":80},1000,"elasticOut",function(){ this.style.transform = "rotate(360deg)"; this.innerHTML = "时间版"; }) }) } });</script></body></html>
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