JS 타임보드 모션 프레임(Twnne)

16643 단어 프레임
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style type="text/css"> *{margin: 0;padding: 0;} #box{ width: 100px; height: 100px; background: yellow; position: absolute; left: 30px; } </style>
</head>
<body>
    <div id="box"></div>
    <script type="text/javascript"> var oBox = document.getElementById('box'); var getStyle = function( obj , attr ){ return obj.currentStyle?obj.currentStyle[attr]:getComputedStyle(obj)[attr]; }; var move = function (obj,arrt,time,cv,fn) { var This = this; var startTime = new Date(); //var startVal = parseInt(getStyle(obj,arrt)); var cv = cv?cv:"elasticOut"; var startVal = {}; for(var i in arrt){ startVal[i] = parseInt( getStyle( obj , i ) ); } var timer = setInterval(function () { var t = new Date() - startTime; //  //var b = startVal; //  //var c = parseInt(target) - b; //  var d = time; //  if (t>=d){ t = d; clearInterval(timer); fn && fn.call( This ); } for(var key in startVal){ var b = startVal[key]; var c = parseInt( arrt[key] ) - b; var r = Tween[cv](t,b,c,d); obj.style[key] = r + "px"; } },13); }; var Tween = { linear: function (t, b, c, d){ //  return c*t/d + b; }, 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; }, easeBoth: function(t, b, c, d){ //  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){ //  return c*(t/=d)*t*t*t + b; }, easeOutStrong: function(t, b, c, d){ //  return -c * ((t=t/d-1)*t*t*t - 1) + b; }, easeBothStrong: 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; }, elasticIn: function(t, b, c, d, a, p){ // ( ) 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){ // ( ) 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){ // ( ) 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; //  } 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){ // ( ) 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; } } move(oBox,{ width:"400px", height:"400px", left:"400px" },3000); </script>
</body>
</html>

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