mjackson

/**
 * Converts an RGB color value to HSL. Conversion formula
 * adapted from http://en.wikipedia.org/wiki/HSL_color_space.
 * Assumes r, g, and b are contained in the set [0, 255] and
 * returns h, s, and l in the set [0, 1].
 *
 * @param   Number  r       The red color value
 * @param   Number  g       The green color value
 * @param   Number  b       The blue color value
 * @return  Array           The HSL representation

dergachev

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

thelbane

// A bot for this silly demo: http://www.webdeveloperjuice.com/demos/jquery/snake_jquery.html 
// Compile with http://closure-compiler.appspot.com/home set to Advanced Optimization
//
// Automatically runs when compiled statement is pasted into console. Type "win()" to run it again.
(window['win'] = function () {
  // direction mappings
  var i, dirs = ['up', 'right', 'down', 'left'],
    diffs = [[-1, 0], [0, 1], [1, 0], [0, -1]]; // don't ask me why the coords are ordered [y,x]
  window['t'] = 1; // next Turn direction if we hit a wall (opposite of last turn direction)
  window['m'] = 0; // My internally tracked direction