instcode’s gists

instcode / SchemaGenerator

Created October 4, 2016 09:23

Domain 2 DDL

	package com.vexpro.moda;

	import org.hibernate.cfg.Configuration;
	import org.hibernate.tool.hbm2ddl.SchemaExport;

	import java.io.File;
	import java.net.URL;
	import java.util.ArrayList;
	import java.util.List;

instcode / Common.scala

Last active November 27, 2015 07:36

SBT Test Listener

	import java.lang.reflect.Method

	import sbt._
	import sbt.Keys._
	import sbt.testing.Logger

	////********************************
	//// Common settings across XXXXXXXX
	////********************************
	object Common {

instcode / DateUtils.java

Created February 6, 2015 13:20

Thread Safe Date Formatter

	package whatever.utils

	import java.text.DateFormat;
	import java.text.SimpleDateFormat;
	import java.util.Date;

	public class DateUtils {

	// Simple thread safe date formatter
	private static class ConcurrentDateFormat extends ThreadLocal<DateFormat> {

instcode / Crypto.java

Created May 9, 2014 23:26

HMAC for hashing secret, AES for encrypting/decrypting data

	package com.puppycloud.game.cheat;
	import java.security.MessageDigest;

	import javax.crypto.Cipher;
	import javax.crypto.Mac;
	import javax.crypto.spec.IvParameterSpec;
	import javax.crypto.spec.SecretKeySpec;

	public class Crypto {

instcode / json2csv.php

Last active December 14, 2015 16:58

JSON Text to CSV

	$json_obj = json_decode($json, false);
	ob_start();
	$fp = fopen('php://output', 'w');
	$header_included = false;
	foreach ($json_obj as $lines) {
	if ($header_included === false) {
	fputcsv($fp, array_keys((array) $lines));
	$header_included = true;
	}
	$line = array();

instcode / PoC

Last active March 30, 2016 15:38

How to modify Temple Run 2 save game data

	1. JSON Game Data:

	var gamedata = {"hash":"52260a1b3dd69ed623b5fbb045bf2b06","data":{"version":7,"Players":[{"v":1,"pid":1,"bestScore":1981650,"bestScoreNoResurrection":456180,"bestCoinScore":3857,"bestSpecialCurrencyScore":2,"bestDistanceScore":10270,"lifetimePlays":109,"lifetimeCoins":57585,"lifetimeSpecialCurrency":23,"lifetimeDistance":224673,"coinCount":1085,"specialCurrencyCount":1,"activePlayerCharacter":0,"gameCenterNeedsUpdate":true,"artifactsPurchased":[0,1,5,6,2,3,10,25,7,4,11,8,35,36,30,26,20],"artifactsDiscovered":[],"objectives":[2,1,0,6,5,3,4,7,9,11,10,8,16,17,18,14,23,24,22,21],"powersPurchased":[0,4],"randomSeed":-1118273536,"numberResurectsUsed":0,"hashID":null,"Buffs":[],"objectivesActiveData":[{"Title":"9 Lives","IconNamePre":"","IconName":"","DescriptionPre":"Use 'Save Me' 9 times","Description":"Used 'Save Me' 9 times","Points":1,"Hidden":false,"CanEarnMoreThanOnce":false,"Difficulty":30,"T":"Resurrects","TT":"OverTime","FT":"None","SV":9,"EarnedSV":6,"PID":27,"GCID":"com.imangi.templer

instcode / DomAttrModifiedDemo

Created September 14, 2012 08:27

Find out who changes "style" attribute (i.e. 'height') of an element

	var div = document.getElementById("id");
	function domEventListener(e) {
	var caller = domEventListener.caller;
	if (e.attrName == 'style' && e.newValue.indexOf('height') >= 0) {
	alert(caller);
	}
	};

	div.addEventListener('DOMAttrModified', domEventListener);

instcode / DoSWFUnpacker.java

Created December 22, 2011 08:34

Unpack flash file that was encrypted by DoSWF

	package org.ddth.game;

	import java.io.File;
	import java.io.FileInputStream;
	import java.io.FileOutputStream;
	import java.io.IOException;
	import java.io.InputStream;
	import java.io.OutputStream;
	import java.nio.ByteBuffer;
	import java.nio.ByteOrder;

instcode / websocket.js

Created October 23, 2011 12:23

A wrapper of node-websocket-server & WebSocket-Node

	// A websocket server wrapper that uses alternative websocket library for different protocol clients
	// This is an enhanced version listed in https://gist.github.com/1148686

	var http = require('http'),
	events = require('events'),
	util = require('util'),
	WebSocketRequest = require('node-websocket').request,
	ws = require('node-websocket-server'),
	Connection = require('node-websocket-server/lib/ws/connection');

instcode / RoadSegment.java

Created October 14, 2011 10:43

Test if a point is "near" a segment specified by 2 points

	// See: www.exaflop.org/docs/cgafaq/cga1.html
	// Let the point be C (Cx,Cy) and the line be AB (Ax,Ay) to (Bx,By).
	// Let P be the point of perpendicular projection of C on AB. The parameter
	// r, which indicates P's position along AB, is computed by the dot product
	// of AC and AB divided by the square of the length of AB:
	// AC dot AB
	// r = ---------
	// \|\|AB\|\|^2
	//
	// r has the following meaning:

Khoa Nguyen instcode