brendanmoore

function map(x, in_min, in_max, out_min, out_max) {
  return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
}

brendanmoore

/**
 *  This is NOT DOM events (click, mouseover, touchend, etc...)
 *  This is custom events, which can be bound to anything.
 */

  var ee = function(){};
  //bind function to event
  ee.prototype.on = function(key, fn){
    //if not function, bail
    if(typeof fn !== 'function'){ return false; }