1 line
1.5 KiB
JavaScript
1 line
1.5 KiB
JavaScript
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!function(a){a.letItSnow=function(b,c){var d=this;d.$el=a(b),d.el=b,d.$el.data("LetItSnow",d),d.init=function(){if(d.options=a.extend({},a.letItSnow.defaultOptions,c),1==d.options.makeFlakes)for(var b=0;100>b;b++)d.$el.prepend('<span class="lis-flake"></span>');1==d.options.sticky&&(d.makeFlakes(),setInterval(function(){d.makeFlakes()},7e3))},d.makeFlakes=function(){a(".lis-flake--js").remove();for(var b=0;50>b;b++)d.$el.append('<span class="'+d.options.stickyFlakes+'"></span>');var c=a("."+d.options.stickyFlakes);d.animateFlakes(c)};var e=d.$el.find("[collectsnow]");if(e.length)var f=e.offset().top,g=e.offset().left,h=a(window).width()-(g+e.outerWidth());d.animateFlakes=function(b){var c=function(a,b){return Math.floor(Math.random()*(b-a+1))+a},d=0;b.each(function(){function b(b){i.animate({marginTop:"2500px"},{duration:b,step:function(b){if(e.length){var c=Math.round(b),d=a(window).width()-(i.offset().left+i.outerWidth());j+c>=f-10&&f+10>=j+c&&i.css("left").replace(/[^-\d\.]/g,"")>=g&&d>=h&&i.stop().attr("class","lis-flake--stuck").css({width:"3px",height:"3px",top:j+6+"px"})}}})}var i=a(this),j=10*c(0,100)-1e3;d++;var k={left:c(0,100)+"%",top:j+"px",width:c(0,5)+"px",height:c(0,5)+"px",transform:"rotate"+(c(0,100)+"deg")};i.css(k),i.hasClass("lis-flake--stuck")||(16>=d?b(1e4):d>17&&33>=d?setTimeout(function(){b(8e3)},4e3):d>34&&50>d&&setTimeout(function(){b(8e3)},6e3))})},d.init()},a.letItSnow.defaultOptions={stickyFlakes:"lis-flake--js",makeFlakes:!0,sticky:!0},a.fn.letItSnow=function(b){return this.each(function(){new a.letItSnow(this,b)})}}(jQuery);
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