LiamKarlMitchell

function Clone(o) {
  var n = {};
  for (var a in o) {
    if (o.hasOwnProperty(a)) {
      n[a] = o[a];
    }
  }
  return n;
}

LiamKarlMitchell

Quad Tree Implementation - Including AI

We needed a Quad Tree to handle spartial positioning in our MMORPG server over at github.com/LiamKarlMitchell/InfiniteSky

So this was born. I have been wanting to implement it for a while anyway.

Using Pixi.js for rendering it so I can see what is going on.

Add a few moving objects by using the button or click in the quad area to add static ones.

LiamKarlMitchell

// Dump a bunch of things into it, it will queue them up and either send them when the queue is full or add more.
// Using some to call the callback function for the queued things.
// If you want you could view the array, process just the first or last thing and return true to break
// then no further execution would be done.
// Callback should expect value, index, array as arguments
function GroupOverTimeThenCall(callback, options) {
	if (!(callback instanceof Function)) {
		throw new Error('GroupOverTimeThenCall expects callback to be a function.');
	}

LiamKarlMitchell

// Sometimes when using Send and Recv API it will not send or recv all the data. You will notice your socket might have an error and gets disconnected.
// Such as the other end wont be able to recv the entire packet correctly or something. The bytes that were not sent are never sent.
// This is horrible of course, I did not read the fine print and just expected it to work -_- (okay I guess an error could happen half way through sending or receiving some data and thats why it works this way.

// Email: liamkarlmitchell@gmail.com
// License: MIT - do whatever you want with this code.

// Borrowed from UNIX Network Programming: Sockets Introduction
// By Andrew M. Rudoff, Bill Fenner, W. Richard Stevens Feb 27, 2004
// http://www.informit.com/articles/article.aspx?p=169505&seqNum=9

LiamKarlMitchell

// I license this as MIT do whatever you want with it basically.
// I can't be assed including the header you know what it is.
// If you don't want Mutex.h comment it out, check out my other gists for it if you need it.

#ifndef __CLOG_H
#define __CLOG_H


#include "Mutex.h"
#include <fstream>

LiamKarlMitchell

// Another thing I made ages ago feel free to use :)
// licensed under MIT / Public / do whatever.

#ifndef __MUTEX_H
#define __MUTEX_H

#define WIN32_LEAN_AND_MEAN             // Exclude rarely-used stuff from Windows headers
// Windows Header Files:
#include <windows.h>

LiamKarlMitchell

// A way to compare two floating point numbers for "equality".
const EPSILON = 0.00000001;
function fEqual(a, b) {
  return ((a - b) < EPSILON && (b - a) < EPSILON);
}

// An infamous mistake by rookies is to notice the following.
// 0.1 + 0.2 == 0.3
// And think it is a mistake when the language says false. Us humans would just say 0.3.
// But because of how float points work in computer you end up with something like 0.30000000000000004.

LiamKarlMitchell

// https://en.wikipedia.org/wiki/Standard_52-card_deck
function unicodeCard(cardNumber) {
  // As of Unicode 7.0 playing cards are now represented. Note that the following chart ("Playing Cards", Range: 1F0A0–1F0FF) includes cards from the Tarot Nouveau deck as well as the standard 52-card deck.
  if (cardNumber < 0 || cardNumber > 56) { throw 'Invalid cardNumber '+cardNumber }
  cardNumber += 2*Math.max(Math.ceil(cardNumber/14),1);
  return String.fromCodePoint(127136-2+cardNumber);
}

function unicodeCardHTMLEncoded(cardNumber) {
  // As of Unicode 7.0 playing cards are now represented. Note that the following chart ("Playing Cards", Range: 1F0A0–1F0FF) includes cards from the Tarot Nouveau deck as well as the standard 52-card deck.

LiamKarlMitchell

// ⓪ ⓪ Circled Digit Zero
// ① ① Circled Digit One
// ② ② Circled Digit Two
// ③ ③ Circled Digit Three
// ④ ④ Circled Digit Four
// ⑤ ⑤ Circled Digit Five
// ⑥ ⑥ Circled Digit Six
// ⑦ ⑦ Circled Digit Seven
// ⑧ ⑧ Circled Digit Eight
// ⑨ ⑨ Circled Digit Nine

LiamKarlMitchell

// This script will connect to the DB and look for potential missing indexes.
// Author: Liam Mitchell
var db = 'database here';

var async = require('async');

var mysql      = require('mysql');
var connection = mysql.createConnection({
  host     : 'host here',
  user     : 'username here',