diff -r 9f8db096d8f7 -r 45b05706b516 web/static/res/js/Ease.js --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/web/static/res/js/Ease.js Mon Oct 22 12:03:53 2012 +0200 @@ -0,0 +1,394 @@ +/* +* Ease +* Visit http://createjs.com/ for documentation, updates and examples. +* +* Copyright (c) 2010 gskinner.com, inc. +* +* Permission is hereby granted, free of charge, to any person +* obtaining a copy of this software and associated documentation +* files (the "Software"), to deal in the Software without +* restriction, including without limitation the rights to use, +* copy, modify, merge, publish, distribute, sublicense, and/or sell +* copies of the Software, and to permit persons to whom the +* Software is furnished to do so, subject to the following +* conditions: +* +* The above copyright notice and this permission notice shall be +* included in all copies or substantial portions of the Software. +* +* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES +* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT +* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, +* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR +* OTHER DEALINGS IN THE SOFTWARE. +*/ + +// namespace: +this.createjs = this.createjs||{}; + +(function() { + +// constructor: +/** + * The Ease class provides a collection of easing functions for use with TweenJS. + * It does not use the standard 4 param easing signature. Instead it uses a single param + * which indicates the current linear ratio (0 to 1) of the tween.
+ *
+ * Most methods on Ease can be passed directly as easing functions:
+ * Tween.get(target).to({x:100}, 500, Ease.linear);
+ *
+ * However, methods beginning with "get" will return an easing function based on parameter values:
+ * Tween.get(target).to({y:200}, 500, Ease.getPowIn(2.2));
+ *
+ * Equations derived from work by Robert Penner. + * @class Ease + * @static + **/ +var Ease = function() { + throw "Ease cannot be instantiated."; +} + +// public static methods: + /** + * @method linear + * @static + **/ + Ease.linear = function(t) { return t; } + + /** + * Identical to linear. + * @method none + * @static + **/ + Ease.none = Ease.linear; + + /** + * Mimics the simple -100 to 100 easing in Flash Pro. + * @method get + * @param amount A value from -1 (ease in) to 1 (ease out) indicating the strength and direction of the ease. + * @static + **/ + Ease.get = function(amount) { + if (amount < -1) { amount = -1; } + if (amount > 1) { amount = 1; } + return function(t) { + if (amount==0) { return t; } + if (amount<0) { return t*(t*-amount+1+amount); } + return t*((2-t)*amount+(1-amount)); + } + } + + /** + * Configurable exponential ease. + * @method getPowIn + * @param pow The exponent to use (ex. 3 would return a cubic ease). + * @static + **/ + Ease.getPowIn = function(pow) { + return function(t) { + return Math.pow(t,pow); + } + } + + + /** + * Configurable exponential ease. + * @method getPowOut + * @param pow The exponent to use (ex. 3 would return a cubic ease). + * @static + **/ + Ease.getPowOut = function(pow) { + return function(t) { + return 1-Math.pow(1-t,pow); + } + } + + + /** + * Configurable exponential ease. + * @method getPowInOut + * @param pow The exponent to use (ex. 3 would return a cubic ease). + * @static + **/ + Ease.getPowInOut = function(pow) { + return function(t) { + if ((t*=2)<1) return 0.5*Math.pow(t,pow); + return 1-0.5*Math.abs(Math.pow(2-t,pow)); + } + } + + + /** + * @method quadIn + * @static + **/ + Ease.quadIn = Ease.getPowIn(2); + /** + * @method quadOut + * @static + **/ + Ease.quadOut = Ease.getPowOut(2); + /** + * @method quadInOut + * @static + **/ + Ease.quadInOut = Ease.getPowInOut(2); + + + /** + * @method cubicIn + * @static + **/ + Ease.cubicIn = Ease.getPowIn(3); + /** + * @method cubicOut + * @static + **/ + Ease.cubicOut = Ease.getPowOut(3); + /** + * @method cubicInOut + * @static + **/ + Ease.cubicInOut = Ease.getPowInOut(3); + + + /** + * @method quartIn + * @static + **/ + Ease.quartIn = Ease.getPowIn(4); + /** + * @method quartOut + * @static + **/ + Ease.quartOut = Ease.getPowOut(4); + /** + * @method quartInOut + * @static + **/ + Ease.quartInOut = Ease.getPowInOut(4); + + + /** + * @method quintIn + * @static + **/ + Ease.quintIn = Ease.getPowIn(5); + /** + * @method quintOut + * @static + **/ + Ease.quintOut = Ease.getPowOut(5); + /** + * @method quintInOut + * @static + **/ + Ease.quintInOut = Ease.getPowInOut(5); + + + /** + * @method sineIn + * @static + **/ + Ease.sineIn = function(t) { + return 1-Math.cos(t*Math.PI/2); + } + + /** + * @method sineOut + * @static + **/ + Ease.sineOut = function(t) { + return Math.sin(t*Math.PI/2); + } + + /** + * @method sineInOut + * @static + **/ + Ease.sineInOut = function(t) { + return -0.5*(Math.cos(Math.PI*t) - 1) + } + + + /** + * Configurable "back in" ease. + * @method getBackIn + * @param amount The strength of the ease. + * @static + **/ + Ease.getBackIn = function(amount) { + return function(t) { + return t*t*((amount+1)*t-amount); + } + } + /** + * @method backIn + * @static + **/ + Ease.backIn = Ease.getBackIn(1.7); + + /** + * Configurable "back out" ease. + * @method getBackOut + * @param amount The strength of the ease. + * @static + **/ + Ease.getBackOut = function(amount) { + return function(t) { + return (--t*t*((amount+1)*t + amount) + 1); + } + } + /** + * @method backOut + * @static + **/ + Ease.backOut = Ease.getBackOut(1.7); + + /** + * Configurable "back in out" ease. + * @method getBackInOut + * @param amount The strength of the ease. + * @static + **/ + Ease.getBackInOut = function(amount) { + amount*=1.525; + return function(t) { + if ((t*=2)<1) return 0.5*(t*t*((amount+1)*t-amount)); + return 0.5*((t-=2)*t*((amount+1)*t+amount)+2); + } + } + /** + * @method backInOut + * @static + **/ + Ease.backInOut = Ease.getBackInOut(1.7); + + + /** + * @method circIn + * @static + **/ + Ease.circIn = function(t) { + return -(Math.sqrt(1-t*t)- 1); + } + + /** + * @method circOut + * @static + **/ + Ease.circOut = function(t) { + return Math.sqrt(1-(--t)*t); + } + + /** + * @method circInOut + * @static + **/ + Ease.circInOut = function(t) { + if ((t*=2) < 1) return -0.5*(Math.sqrt(1-t*t)-1); + return 0.5*(Math.sqrt(1-(t-=2)*t)+1); + } + + /** + * @method bounceIn + * @static + **/ + Ease.bounceIn = function(t) { + return 1-Ease.bounceOut(1-t); + } + + /** + * @method bounceOut + * @static + **/ + Ease.bounceOut = function(t) { + if (t < 1/2.75) { + return (7.5625*t*t); + } else if (t < 2/2.75) { + return (7.5625*(t-=1.5/2.75)*t+0.75); + } else if (t < 2.5/2.75) { + return (7.5625*(t-=2.25/2.75)*t+0.9375); + } else { + return (7.5625*(t-=2.625/2.75)*t +0.984375); + } + } + + /** + * @method bounceInOut + * @static + **/ + Ease.bounceInOut = function(t) { + if (t<0.5) return Ease.bounceIn (t*2) * .5; + return Ease.bounceOut(t*2-1)*0.5+0.5; + } + + + /** + * Configurable elastic ease. + * @method getElasticIn + * @param amplitude + * @param period + * @static + **/ + Ease.getElasticIn = function(amplitude,period) { + var pi2 = Math.PI*2; + return function(t) { + if (t==0 || t==1) return t; + var s = period/pi2*Math.asin(1/amplitude); + return -(amplitude*Math.pow(2,10*(t-=1))*Math.sin((t-s)*pi2/period)); + } + } + /** + * @method elasticIn + * @static + **/ + Ease.elasticIn = Ease.getElasticIn(1,0.3); + + /** + * Configurable elastic ease. + * @method getElasticOut + * @param amplitude + * @param period + * @static + **/ + Ease.getElasticOut = function(amplitude,period) { + var pi2 = Math.PI*2; + return function(t) { + if (t==0 || t==1) return t; + var s = period/pi2 * Math.asin(1/amplitude); + return (amplitude*Math.pow(2,-10*t)*Math.sin((t-s)*pi2/period )+1); + } + } + /** + * @method elasticOut + * @static + **/ + Ease.elasticOut = Ease.getElasticOut(1,0.3); + + /** + * Configurable elastic ease. + * @method getElasticInOut + * @param amplitude + * @param period + * @static + **/ + Ease.getElasticInOut = function(amplitude,period) { + var pi2 = Math.PI*2; + return function(t) { + var s = period/pi2 * Math.asin(1/amplitude); + if ((t*=2)<1) return -0.5*(amplitude*Math.pow(2,10*(t-=1))*Math.sin( (t-s)*pi2/period )); + return amplitude*Math.pow(2,-10*(t-=1))*Math.sin((t-s)*pi2/period)*0.5+1; + } + } + /** + * @method elasticInOut + * @static + **/ + Ease.elasticInOut = Ease.getElasticInOut(1,0.3*1.5); + +createjs.Ease = Ease; +}());