Falling letter jQuery plugin.
plug in:
(function($){
$.fn.fallLetters = function(options){
// the default options var defaults = {
minFont:14,
// minimum font size to be displayed(in pixel) maxFont:20,
// maximum font size to be displayed(in pixel) minSpeed:2000,
// should be larger than the maxspeed, 1000 = 1 sec maxSpeed:1000,
// the smaller the amount the faster it fall, 1000 = 1 sec fading:true
// fading while falling effect }
// to override the defaults of each option var options = $.extend(defaults, options);
return this.each(function(){
// declaration of variables var cont=$(this);
var contWidth=($(this).width())-50;
var contHeight=($(this).height())+150;
// container's CSS cont.css({"position":"relative","overflow":"hidden"});
// wrap the letters with span cont.children().andSelf().contents().each(function(){
if (this.nodeType == 3) {
var $this = $(this);
$this.replaceWith($this.text().replace(/(\w)/g, "<span>$&</span>"));
}
});
// onload random span left and font reset();
cont.find("span").each(function(){
$(this).css({"left":randomLeft(),"fontSize":randomFont(),"position":"absolute"});
});
// loops every 2 mins setInterval(function(){
cont.find("span").each(function(){
$(this).animate({"top":contHeight+"px","opacity":ifFallAndFade()},randomSpeed(),function(){
var Left=randomLeft();
$(this).css({"left":Left,"fontSize":randomFont()});
reset();
});
});
},100);
// fading while falling function ifFallAndFade(){
if(options.fading){
return 0;
}
else{
return 1;
}
}
// randomize left css of each character function randomLeft() {
var maxLeft= contWidth;
var left= Math.floor(Math.random() * maxLeft + 1) + 'px';
return left;
}
// randomize the time of each character function randomSpeed(){
var speed=Math.floor(Math.random() * options.minSpeed + options.maxSpeed);
return speed;
}
// randomized the font size of each character function randomFont() {
var fontSize= Math.floor(Math.random() * options.maxFont + options.minFont) + 'px';
return fontSize;
}
// reset or back to top, -100px so that it will be hidden function reset(){
cont.find("span").css({"top":"-100px","opacity":"1"});
}
});
};
})(jQuery);
script:
<script type="text/javascript">
jQuery(document).ready(function(){
jQuery("#cont").fallLetters({
minFont:10,
maxFont:24,
minSpeed:3000,
maxSpeed:1500,
fading:true
});
});
</script>
html:
<div id="cont">ABCDEFGHIJKLMNopqrstuvwxyz1234567890</div>
Hope this will help!..
(i made this one)
