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web/res/metadataplayer/test/interface 1.2/source/easing.js
author Yves-Marie Haussonne <1218002+ymph@users.noreply.github.com>
Sun, 04 Mar 2012 14:13:39 +0100
changeset 533 d824146a9589
parent 133 9578d3ddce17
permissions -rwxr-xr-x
Added tag V01.44 for changeset 3d07326cea36
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/**
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 * Interface Elements for jQuery
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 * Easing formulas
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 *
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 * http://interface.eyecon.ro
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 *
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 * Copyright (c) 2006 Stefan Petre
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 * Dual licensed under the MIT (MIT-LICENSE.txt)
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 * and GPL (GPL-LICENSE.txt) licenses.
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 */
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/**
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 * Starting with jQuery 1.1  the fx function accepts easing formulas that can be used with .animation() and most of FX plugins from Interface. The object can be extended to accept new easing formulas
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 */
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 jQuery.extend({
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	/**
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	 *
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	 * @param Integer p period step in animation
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	 * @param Integer n current time
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	 * @param Mixed firstNum begin value
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	 * @param Mixed delta change in
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	 * @param Integer duration duration
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	 */
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	easing :  {
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		linear: function(p, n, firstNum, delta, duration) {
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			return ((-Math.cos(p*Math.PI)/2) + 0.5) * delta + firstNum;
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		},
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		easein: function(p, n, firstNum, delta, duration) {
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			return delta*(n/=duration)*n*n + firstNum;
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		},
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		easeout: function(p, n, firstNum, delta, duration) {
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			return -delta * ((n=n/duration-1)*n*n*n - 1) + firstNum;
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		},
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		easeboth: function(p, n, firstNum, delta, duration) {
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			if ((n/=duration/2) < 1)
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				return delta/2*n*n*n*n + firstNum;
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				return -delta/2 * ((n-=2)*n*n*n - 2) + firstNum;
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		},
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		bounceout: function(p, n, firstNum, delta, duration) {
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			if ((n/=duration) < (1/2.75)) {
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				return delta*(7.5625*n*n) + firstNum;
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			} else if (n < (2/2.75)) {
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				return delta*(7.5625*(n-=(1.5/2.75))*n + .75) + firstNum;
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			} else if (n < (2.5/2.75)) {
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				return delta*(7.5625*(n-=(2.25/2.75))*n + .9375) + firstNum;
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			} else {
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				return delta*(7.5625*(n-=(2.625/2.75))*n + .984375) + firstNum;
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			}
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		},
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		bouncein: function(p, n, firstNum, delta, duration) {
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			if (jQuery.easing.bounceout)
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				return delta - jQuery.easing.bounceout (p, duration - n, 0, delta, duration) + firstNum;
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			return firstNum + delta;
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		},
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		bounceboth: function(p, n, firstNum, delta, duration) {
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			if (jQuery.easing.bouncein && jQuery.easing.bounceout)
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				if (n < duration/2)
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					return jQuery.easing.bouncein(p, n*2, 0, delta, duration) * .5 + firstNum;
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				return jQuery.easing.bounceout(p, n*2-duration, 0, delta, duration) * .5 + delta*.5 + firstNum;
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			return firstNum + delta;
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		},
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		elasticin: function(p, n, firstNum, delta, duration) {
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			var a, s;
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   			if (n == 0)
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   				return firstNum;
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   			if ((n/=duration)==1)
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   				return firstNum+delta;
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   			a = delta * 0.3;
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   			p=duration*.3;
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			if (a < Math.abs(delta)) {
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				a=delta;
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				s=p/4;
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			} else {
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				s = p/(2*Math.PI) * Math.asin (delta/a);
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			}
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			return -(a*Math.pow(2,10*(n-=1)) * Math.sin( (n*duration-s)*(2*Math.PI)/p )) + firstNum;
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		},
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		elasticout:function(p, n, firstNum, delta, duration) {
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			var a, s;
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			if (n==0)
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				return firstNum;
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			if ((n/=duration/2)==2)
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				return firstNum + delta;
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   			a = delta * 0.3;
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   			p=duration*.3;
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			if (a < Math.abs(delta)){
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				a = delta;
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				s=p/4;
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			} else {
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				s = p/(2*Math.PI) * Math.asin (delta/a);
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			}
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			return a*Math.pow(2,-10*n) * Math.sin( (n*duration-s)*(2*Math.PI)/p ) + delta + firstNum;
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		},
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		elasticboth: function(p, n, firstNum, delta, duration) {
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			var a, s;
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			if (n==0)
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				return firstNum;
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			if ((n/=duration/2)==2)
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				return firstNum + delta;
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   			a = delta * 0.3;
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   			p=duration*.3;
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			if (a < Math.abs(delta)){
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				a = delta;
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				s=p/4;
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			} else {
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				s = p/(2*Math.PI) * Math.asin (delta/a);
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			}
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			if (n < 1) {
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				return -.5*(a*Math.pow(2,10*(n-=1)) * Math.sin( (n*duration-s)*(2*Math.PI)/p )) + firstNum;
9578d3ddce17 correct line endings + other small errors
Yves-Marie Haussonne <1218002+ymph@users.noreply.github.com>
parents: 99
diff changeset 
   120
 
			}
9578d3ddce17 correct line endings + other small errors
Yves-Marie Haussonne <1218002+ymph@users.noreply.github.com>
parents: 99
diff changeset 
   121
 
			return a*Math.pow(2,-10*(n-=1)) * Math.sin( (n*duration-s)*(2*Math.PI)/p )*.5 + delta + firstNum;
9578d3ddce17 correct line endings + other small errors
Yves-Marie Haussonne <1218002+ymph@users.noreply.github.com>
parents: 99
diff changeset 
   122
 
		}
9578d3ddce17 correct line endings + other small errors
Yves-Marie Haussonne <1218002+ymph@users.noreply.github.com>
parents: 99
diff changeset 
   123
 
	}
99
6cb4d10f0b8b NEW WEBSITE WITH : HOME / ABOUT / CLIENT.PHP
Samuel Huron <samuel.huron@centrepompidou.fr>
parents:
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});
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