GIF SCRATCHER

A lightweight (~4kb minified) jQuery plugin that allows you to scratch GIFs.

DEMO

https://linuslundahl.github.io/GifScratcher/

DOCUMENTATION

Add the first image in your animation to your HTML file.

<div id="target" class="target">
	<img src="animation-first.jpg">
</div>

Then add the jQuery magic.

$("#target").gifscratcher({
	sprite : 'animation.jpg',
	frames : 10
});

Settings available.

sprite      : string  // Image sprite
frames      : int     // Number of frames in sprite
interaction : string  // 'hover'         - Scratch on hover
					  // 'drag'          - Scratch on drag
auto        : bool    // Autoplay
speed       : int     // Autoplay speed
cursor      : boolean // Add custom cursor

HELP

To extract every single frame from an animated GIF as individual JPEGs and create a sprite you can use ImageMagick in the terminal.

Install ImageMagick (OS X):

$ brew install imagemagick

To extract the frames run:

$ convert FILENAME.gif -coalesce %02d.jpg

To create the final sprite run:

$ montage `ls ??.jpg` -tile NUMBER_OF_FRAMESx1 -geometry 500x284 FILENAME.jpg