jquery.jSlots.min.js

/*
 * jQuery jSlots Plugin
 * http://matthewlein.com/jslot/
 * Copyright (c) 2011 Matthew Lein
 * Version: 1.0.2 (7/26/2012)
 * Dual licensed under the MIT and GPL licenses
 * Requires: jQuery v1.4.1 or later
 */

(function(a){a.jSlots=function(c,b){var d=this;d.$el=a(c);d.el=c;d.$el.data("jSlots",d);d.init=function(){d.options=a.extend({},a.jSlots.defaultOptions,b);d.setup();d.bindEvents();};a.jSlots.defaultOptions={number:3,winnerNumber:1,spinner:"",spinEvent:"click",onStart:a.noop,onEnd:a.noop,onWin:a.noop,easing:"swing",time:7000,loops:6};d.randomRange=function(e,f){return Math.floor(Math.random()*(1+f-e))+e;};d.isSpinning=false;d.spinSpeed=0;d.winCount=0;d.doneCount=0;d.$liHeight=0;d.$liWidth=0;d.winners=[];d.allSlots=[];d.setup=function(){var e=d.$el;var g=e.find("li").first();d.$liHeight=g.outerHeight();d.$liWidth=g.outerWidth();d.liCount=d.$el.children().length;d.listHeight=d.$liHeight*d.liCount;d.increment=(d.options.time/d.options.loops)/d.options.loops;e.css("position","relative");g.clone().appendTo(e);d.$wrapper=e.wrap('<div class="jSlots-wrapper"></div>').parent();d.$el.remove();for(var f=d.options.number-1;f>=0;f--){d.allSlots.push(new d.Slot());}};d.bindEvents=function(){a(d.options.spinner).bind(d.options.spinEvent,function(e){if(!d.isSpinning){d.playSlots();}});};d.Slot=function(){this.spinSpeed=0;this.el=d.$el.clone().appendTo(d.$wrapper)[0];this.$el=a(this.el);this.loopCount=0;this.number=0;};d.Slot.prototype={spinEm:function(){var e=this;e.$el.css("top",-d.listHeight).animate({top:"0px"},e.spinSpeed,"linear",function(){e.lowerSpeed();});},lowerSpeed:function(){this.spinSpeed+=d.increment;this.loopCount++;if(this.loopCount<d.options.loops){this.spinEm();}else{this.finish();}},finish:function(){var e=this;var g=d.randomRange(1,d.liCount);var f=-((d.$liHeight*g)-d.$liHeight);var h=((this.spinSpeed*0.5)*(d.liCount))/g;e.$el.css("top",-d.listHeight).animate({top:f},h,d.options.easing,function(){d.checkWinner(g,e);});}};d.checkWinner=function(f,g){d.doneCount++;g.number=f;if((a.isArray(d.options.winnerNumber)&&d.options.winnerNumber.indexOf(f)>-1)||f===d.options.winnerNumber){d.winCount++;d.winners.push(g.$el);}if(d.doneCount===d.options.number){var e=[];a.each(d.allSlots,function(h,i){e[h]=i.number;});if(a.isFunction(d.options.onEnd)){d.options.onEnd(e);}if(d.winCount&&a.isFunction(d.options.onWin)){d.options.onWin(d.winCount,d.winners,e);}d.isSpinning=false;}};d.playSlots=function(){d.isSpinning=true;d.winCount=0;d.doneCount=0;d.winners=[];if(a.isFunction(d.options.onStart)){d.options.onStart();}a.each(d.allSlots,function(e,f){this.spinSpeed=0;this.loopCount=0;this.spinEm();});};d.onWin=function(){if(a.isFunction(d.options.onWin)){d.options.onWin();}};d.init();};a.fn.jSlots=function(b){if(this.length){return this.each(function(){(new a.jSlots(this,b));});}};})(jQuery);