How to do Katamari Hack?
It works with a JavaScript code which creates a ball that collects all written data on the website and erase it, Well this erasing only happens on your screen i.e- NOT ON THE REAL WEBSITE.
javascript:var i,s,ss=['http://kathack.com/js/kh.js','http://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js'];for(i=0;i!=ss.length;i++){s=document.createElement('script');s.src=ss[i];document.body.appendChild(s);}void(0);
Just copy and paste this code on the address bar and drag the ball to your open website.
(note- when you will paste this code to your address bar the javascript: will be automatically removed so don't forget to write it again before"var")
This hack works best with CHROME and FIREFOX).
How does it work?
Short version: css transforms (for things stuck to the katamari), canvas (drawing the katamari), and z-index (illusion of depth).Long version: The bookmarklet loads jQuery and kh.js into the current page. jQuery is used mostly for
.offset()
and .css()
. kh.js is where all the action happens:- Splits all the text on the page into words/spans. (
StickyNodes::addWords
) - Builds a grid data structure so that intersections with elements can be found quickly (
StickyNodes::finalize
). Essentiallygrid[floor(x / 100)][floor(y / 100)]
is a list of elements in a 100x100 pixel block. This should probably be an R-tree, but the hot-spot in this program is definitely in the rendering. - The ball and stripes are drawn in a canvas that gets moved around the page (i.e.
position: absolute; left: x; top: y;
). SeePlayerBall::drawBall
. - When an element is attached to the katamari, a clone is made. The original element is hidden. The new element is moved around by setting
-webkit-transform
. The transform rotates the element about the rolling axis of the katamari and scales the element to make it look like it's coming out of the page. SeePlayerBall::drawAttached
, transform_test.html, and transform_test2.html.
source- http://kathack.com/
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