klovadis

-- sets all fields for a hash from a dictionary 
local hmset = function (key, dict)
  if next(dict) == nil then return nil end
	local bulk = {}
	for k, v in pairs(dict) do
		table.insert(bulk, k)
		table.insert(bulk, v)
	end
	return redis.call('HMSET', key, unpack(bulk))
end

klovadis

// example function where arguments 2 and 3 are optional
function example( err, optionalA, optionalB, callback ) {

    // retrieve arguments as array
    var args = [];
    for (var i = 0; i < arguments.length; i++) {
        args.push(arguments[i]);
    }

    // first argument is the error object

klovadis

-- gets all fields from a hash as a dictionary
local hgetall = function (key)
  local bulk = redis.call('HGETALL', key)
	local result = {}
	local nextkey
	for i, v in ipairs(bulk) do
		if i % 2 == 1 then
			nextkey = v
		else
			result[nextkey] = v

klovadis

// returns a function that spits out messages to a callback 
// function; those messages have been split by newline
function newLineStream(callback) {
	var buffer = '';
	return (function (chunk) {
		var i = 0, piece = '', offset = 0;
		buffer += chunk;
		while ( (i = buffer.indexOf('\n', offset)) !== -1) {
			piece = buffer.substr(offset, i - offset);
			offset = i + 1;

klovadis

// ----- throw your class into one single file = a seperate scope

// constructor and export
var myClass = module.exports = function () {
    // ..
}

// a public method
myClass.prototype.publicMethod = function () {

klovadis

-- turns a dictionary table into a bulk reply table
local dict2bulk = function (dict)
  local result = {}
	for k, v in pairs(dict) do
		table.insert(result, k)
		table.insert(result, v)
	end
	return result
end

klovadis

// example function that raises an error
function example (callback) {

    // correct approach
    return callback ( new Error('an error occurred') );

    // NO! BAD KITTY!
    return callback ('an error occurred');

klovadis

Namespace.ModuleName = function (opt) {

  // default configuration values
  var defaults = {
  	moduleContextSelector: '.select-an-awesome > .module',
		moduleTitle: 'Some Arbitrary Title',
		moduleTimeoutSpeed: 3000
	}

klovadis

// to install the connect framework, go to your applications directory
// and type "npm install connect" in your command prompt.

// to launch the webserver, place this file in your application
// directory and execute it using "node index.js"

var connect = require('connect')
,   app = connect()
,   webserver = require('http').createServer(app);

klovadis

var Robot = function(robot) {
robot.rotateCannon(-90);
};

Robot.prototype.onIdle = function(ev) {
    var robot = ev.robot;
    robot.ahead();
  	//i'll add a clone but i need to refactor collision
  	//robot.clone();
};