The C++11 "bible" Is Out And Gcc/clang Implements Almost All O

Fri, 24 May 2013 00:13:29 +0000

Today a got my copy of The C++ Programming Language 4th edition by Bjarne Stroustrup. The earlier versions of these books have been the C++ programming bibles and now this version is updated for C++11 in all it's glory. To boot, gcc 4.8 (released a week ago) is practically a compliant C++11 compiler (see here). Clang 3.3(still in progress) will have implemented all of C++11 by it's release as well. C++11 has arrived, it's here and can be used. There is no longer a reason, IMO, to teach C++98/03. The information is widely available on the internet, there is now a decent bit of adequate literature to draw from and the implementation is here. VC++ is lagging a bit behind it seems but it seems like it is in the works. Thoughts?...

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DevOps For Dummies - VPS Configuration From Scratch - Rails, Nginx, PostgreSQL.

Wed, 22 May 2013 21:36:00 +0000

Hi guys, just finished writing an article showing you how to set up an Ubuntu VPS from scratch for Ruby on Rails development. Check it out here: http://tech.pro/tuto...ginx-postgresql Hopefully it saves some of you some migraines when you're starting out.

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The 14 Characters You Meet As A Coder

Tue, 21 May 2013 04:00:39 +0000

I came across this article, and figured it would be a fun one to share. Some of the characters include: QuoteThe Hipster Hacker from Hell. We really need to rewrite all of our software in Haskell because then our code will be beautiful. Never mind the costs! Did I say Haskell? Haskell was so last year. I mean Clojure because it will be simple! Bugs? Features? I have no time for such trivial matters. I have a whole new architecture to write in Ceylon! The Holy Priest. This person revels in technology for its own sake and has no patience for the hapless techno weenies who don't spend their days chanting arcane invocations using terms like "regex," "SOAP," "asynchronous messaging,"...

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Introduction To Computational Complexity

Sun, 19 May 2013 23:40:26 +0000

Introduction to Computational Complexity This tutorial will cover basic algorithm analysis, specifically the time complexity of algorithms. The tools used include Big-O, Big-Omega, and Big-Theta. This tutorial will also discuss some of the mathematical properties of Big-O, Big-Omega, and Big-Theta. I have attached a PDF version of the tutorial, which is typeset using LaTeX, for those of you who would prefer to view it in that format. [attachment=33064:Complexity_Tutorial.pdf] Big-O and Big-Omega First, let's define Big-O and Big-Theta. A function f(n) is O(g(n)) if and only if there exist constants C and k in the set of positive integers such that |f(x)| <= C * |g(x)|, for all x >= k. In other words, Big-O is an upper...

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Ticket To Ride Helper App: Pre Alpha Release

Sun, 19 May 2013 19:56:00 +0000

Alrighty then. After much floundering about (diminishing returns on programming achievement apparently decrease rapidly for me post 11 PM), I have the initial cut of the algorithm that underlies this application. For the introduction and cities flat file, see this previous post. Those of you familiar with the game know that shortest path by train length itself is not always the best route since tunnels and colors can have great effects on your play. For now those are non existent, shortest path only, the rest TBD. Algorithm: Dijkstra's algorithm TLDR: Global optimum shortest path. O(V2) Next step is to throw a GUI on this. While the interesting part is done, everyone loves GUIs, less love for the command line I've found....

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Linear Algebra Primer: Part 1- Vector Spaces

Sun, 19 May 2013 04:11:54 +0000

Linear Algebra Primer: Part 1- Vector Spaces This tutorial is the first in a series designed to introduce Linear Algebra, a field of mathematics that is highly applicable to a number of areas related to programming and computer science. Some of these areas include scientific and numerical computing, graph theory, economics, number theory, dynamical systems, graphics programming, and more. In this tutorial, the concepts of Vector Spaces and Subspaces will be introduced. I apologize that this tutorial will focus more on the abstracts than on applications, but I will try to keep future tutorials more focused on applications of interest than abstraction. Vector Spaces Let's start out with Vector Spaces. A Vector Space is a set of...

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Ticket To Ride Helper App: Laying The Groundwork

Sat, 18 May 2013 19:58:00 +0000

If you haven't played Ticket to Ride (or one of its many variants, Europe, India, et al.), I highly recommend it. A fun game for the layman, but to the computer scientist it screams graph theory. Currently working on an app that does shortest path recommendations. It will eventually take into account the cards in your hand, what's in the discard pile, and locomotives to guesstimate the cheapest path. Additionally it will map out routes for your objective cards and how to combine routes to achieve all of them. Alright, enough of what's to come. In order for any of this to work we first need data. Since none exist (seriously why), I have mapped out the European map into a flat file that is easily parsable. It is laid out in...

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Behold My Inner Nerdary

Sat, 11 May 2013 20:36:00 +0000

I've been meaning to do this for a while now. Over a year in fact. Fellow Skyrim players, you remember that fine map that came with your game purchase (digital aside)? I had it framed: [attachment=32999:skyrim_framed.jpg] Behold the awesome! Is it in my living room? Yes.

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Bezier Curves Part 1 [Linear Algebra Series]

Fri, 10 May 2013 04:47:40 +0000

Introduction Starting off, what is a Bezier Curve? It is a curve defined by 2 or more control points which determine how the curve looks. The first and last control points are, by definition, passed directly through while other control points (in the general cases) are simply moved towards and not directly through. This can all sounds little difficult to understand at first, so I will give you an interactive demo on what Bezier Curves look like and how they work. In the demo, the blue squares are the hard control points and the red circles are the soft control points. As you drag the control points around the screen you will see the curve change accordingly. (Requires Flash Player)...

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Aaron1178 Promoted To Forum Leader For Game Development

Thu, 09 May 2013 11:49:24 +0000

Hi all, To recognise aaron1178's contributions and help in the game development forum he has been promoted to forum leader for that area. it will be great to see what kind of challenges and discussions he comes up with. Congrats aaron1178!

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Polished Model Viewer

Sun, 05 May 2013 08:15:53 +0000

I made this 3d model viewer almost out of necessity, because ShaderDesigner and RenderMonkey weren't fulfilling my needs. I hope you all enjoy it. Features: (i)Free-flying camera (WASD controls) (ii)Rotating Light (iii)GLSL(Vertex and Fragment) shading (iv)Grid-style environment (v)720x480 resolution (vi)Scale and rotate model (vii)Custom, hand-written GUI (viii)Import models(.3DS) (*Only use .3DS files exported through 3ds Max) (ix)Lightweight Restrictions: (i)No textures (ii)No more than 1 light supported (iii)Only static models (iv)Must hardcode light and material values in shader Can be downloaded off my website-> PMV.zip *Also, I wrote example shaders and model so you may test for yourself

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Demo Of Twitter Application-Only OAuth Authentication Using Java

Sun, 05 May 2013 02:15:00 +0000

I found that there was little in the way of examples using Application-Only OAuth for Twitter using Java. So I thought I would put together the basics for those looking for the same thing. This demo example below shows you how to acquire a bearer token and then using that token to issue requests to Twitter's REST API version 1.1. However, only endpoints that don't need to have a user account can be used. This means that the demo can primarily use those endpoints which list publicly accessible tweets, lists or user information. Twitter's Two Types of Authentication Twitter features two different types of authentication. The first type is user authentication (OAth Signed) which allows an application to act on behalf of the...

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A Late Night Ruby Snippet

Sat, 04 May 2013 03:20:00 +0000

You ever run across a problem that you just say, "why?" And then you had to write a quick snippet to solve it? This was mine as I was doing my near midnight DIC browsing. [Hey ooooo!] Behold, a solution! str = "aaabbbcbbaaa" pairs = [] counter = 1 (0..(str.length-1)).each do |i| if not str[i] == str[i+1] pairs << [ str[i], counter ] counter = 1 else counter = counter + 1 end end print pairs Quote$ ruby encode.rb [["a", 3], ["b", 3], ["c", 1], ["b", 2], ["a", 3]]

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Ninja App: Quick And Dirty Image Degrading

Fri, 03 May 2013 16:01:54 +0000

Tools: Visual Studio .NET Framework 4.0 Vb.NET Background: A few years back I was messing around with some graphics for a website and found myself repeatedly trying to 'fuzz-out' or pixelate images for a certain effect. It was taking a whole mess of my time up as I was playing with various arrangements, and I decided to stream line the process with a small ninja app. Thus was born the 'image pixelator'! The theory is quite simple and ingenious. If you have a given image and you shrink it down sufficiently the granularity (or resolution) of the pixels that make up a clear image are removed as they are repackaged in a smaller space. In that small space you can fiddle with quality, smoothing, etc. With the...

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Challenge: Un-Recursive (Simple?)

Thu, 02 May 2013 11:43:34 +0000

Challenge: Un-Recursive The participation in the challenges seems to have dropped off, maybe the recent ones where a little to challenging? So let's go back to our roots and do a simple one. Challenge Write a non-recursive version of the following code. Public Function AddWorkDays( D As Date, X As Integer ) As Date Return AddWorkDays( D , X , If( ( X < 0 ) , -1 , 1 ) ) End Function Private Function AddWorkDays( D As Date, X As Integer , A As Integer ) As Date If D.DayOfWeek = DayOfWeek.Saturday Then D = D.AddDays(A) If D.DayOfWeek = DayOfWeek.Sunday Then D = D.AddDays(A) Return If( ( X = 0 ), D , AddWorkDays( D.AddDays( A ) , ( X - A ) , A ) ) End Function Edit: Use Recursive Function in...

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Reputation Awards- April

Thu, 02 May 2013 05:20:45 +0000

Congratulations to the winners of the reputation awards for the month of April! Thank you all for your hard work! Software Development modi123_1 Java pbl C/C++ jimblumberg VB.NET andrewsw CharlieMay lar3ry IronRazer Python Mekire VB6 andrewsw BobRodes Game Development modi123_1 ButchDean HTML/CSS andrewsw Javascript andrewsw

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Signature Of The Month: May 2013

Wed, 01 May 2013 16:57:07 +0000

Time for another signature of the month! (sort of) Last month's winner was, finally, me - modi123_1 - for my take on 'April Showers'. As the winner I opted to take this month into an exploratory direction and see how this works. A bit of background - are you familiar with the vinyl DIY toy called 'munny'? The concept is you have this blank vinyl toy and you can: draw, paint, cut, shape, mold, add stickers to, give props, or set in scenes as your heart desires. As much fun as it would be to mail you all your own munny to physical color and shape I think a more effective option is to have folks decorate a digital munny template! Attached is a big ol' template I came across (if this...

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NASM - Using SQLite (Querying Data From A Table)

Wed, 01 May 2013 03:43:03 +0000

SQLite is a fast and nifty database engine. QuoteSQLite is an in-process library that implements a self-contained, serverless, zero-configuration, transactional SQL database engine. The code for SQLite is in the public domain and is thus free for use for any purpose, commercial or private. SQLite is currently found in more applications than we can count, including several high-profile projects. In this tutorial, we will learn how to query single values, column names, and all table data. I will not cover SQL Syntax, there are many great books on SQLite - get one. I recommend The Definitive Guide to SQLite, I learned a great deal from it. First thing you need, are the SQLite Binaries for your OS; grab them from the SQLite Download...

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NASM - Using SQLite (Querying Data From A Table)

Wed, 01 May 2013 03:43:03 +0000

WPF For The WinForms Coder - Part 2

Tue, 30 Apr 2013 18:52:27 +0000

Learning C# Series WPF for the WinForms coder Part 2 - Some additions to Visual Studio to make your life better This isn't exactly a "tutorial" but is a part of this 'WPF for the WinForms coder' transitional series. We all know that Visual Studio is extensible, meaning people write extensions for it to give it new or better features. There are a few of these I'd like to point out because I would't want to do without them if I didn't have to. They can be obtained through the Microsoft Extension Library on line. If you've never done this, its quite easy. From your Tools menu select Updates and Extensions. Then Online. Then Visual Studio Gallary The first extension gives us our familiar...

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Signature Of The Month Winner (April 2013) - Modi123_1

Tue, 30 Apr 2013 04:05:43 +0000

Stellar entries folks! We play by Highlander rules here so there can be only one: 1st place: modi123_1 2nd place: BetaWar 3rd place: laytonsdad 4th place: RestlessCoder 5th place snoopy11 Please give modi123_1, me, a round of applause! I finally earned my shiny new badge /smile.gif' class='bbc_emoticon' alt=':)' />/>/>/>/>/>/> , and I also gets to choose the theme for the next competition! [attachment=32864:20130429_sotm_winner.jpg]

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Oblivious Yet Hilarious GameDev Tycoon Stunt

Mon, 29 Apr 2013 15:41:00 +0000

In a creative way to fight? piracy, the developers behind GameDev Tycoon purposefully leaked a cracked version of their game with a joke inside- at some point in the game, your virtual game company will get reports of mass piracy and eventually you will lose since you can't make any money off the game. Despite what I think, this is still a pretty hilarious troll move. I still think the Invulnerable Pink Scorpion was a better one, though, because it had no other message than the developers just wanted to fuck with you. However! This is double ironic.. for me because this is every bit the simulated virtual fantasy game companies want you to believe- that if everyone pirates games THE INDUSTRY WILL DIE and so forth. Most people...

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Dream.In.Code Badge Generator! Share Your Flair On Your Site Or Blog.

Sun, 28 Apr 2013 18:15:00 +0000

This is a small weekend project I wrote after finding a Github badge generator online. I thought, if Github has one, why not DreamInCode? This was built using: Ruby on Rails Nokogiri Heroku PostgreSQL Check it out here: http://dicbadge.herokuapp.com/ To use it on your website you just need to set an iframe with the src set to something like: http://dicbadge.hero...om/badge/604746 where the number is your Dream.In.Code user id. The project is also Open Source, so feel free to fiddle about with it and make improvements. https://github.com/s...otapia/dicbadge Cheers, Sergio

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Making The Transition From WinForms To WPF - Part 1

Fri, 26 Apr 2013 18:58:46 +0000

Learning C# Series WPF for the WinForms coder Part 1 - Binding GUI controls to class properties, or "How to make smarter GUI's with less code" Summary There are lots of tutorials on doing things in WinForms. It has been the primary GUI development for the .NET developer for years and years. Like any technology people want more from it. More options, faster processing, greater flexibility, more compatibility with other devices. Thus Windows Presentation Foundation was born. WinForms is not dead. I don't expect it to even be retired for years. But (like me) it is about ready for senior discounts and Denny's and IHOP. WPF leverages the power of DirectX for its drawing making it fast and powerful. There...

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Intro To Genetic Algorithms

Fri, 26 Apr 2013 03:07:10 +0000

Tools: Visual Studios, VB.NET, 4.0 framework, console project. Genetic Algorithms (GA) are a fun and interesting way to, in my opinion, have a directed (heuristic) brute force method rooted in biological functions. While they are not an end all-be all solution I think their solution space can provide interesting answers for interesting applications. The gist of GAs is to throw possible solutions at the wall, determine which are closer to your goal, drop those that are not, and create new solutions from those closest to the goal. Simple enough, right? The way this happens is through three neat functions: 1. Cross Over - Cross over is where you cut apart two solutions and mash up their parts to make a new offspring. There are...

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Featured Topics at Dream.In.Code

The C++11 "bible" Is Out And Gcc/clang Implements Almost All O

DevOps For Dummies - VPS Configuration From Scratch - Rails, Nginx, PostgreSQL.

The 14 Characters You Meet As A Coder

Introduction To Computational Complexity

Ticket To Ride Helper App: Pre Alpha Release

Linear Algebra Primer: Part 1- Vector Spaces

Ticket To Ride Helper App: Laying The Groundwork

Behold My Inner Nerdary

Bezier Curves Part 1 [Linear Algebra Series]

Aaron1178 Promoted To Forum Leader For Game Development

Polished Model Viewer

Demo Of Twitter Application-Only OAuth Authentication Using Java

A Late Night Ruby Snippet

Ninja App: Quick And Dirty Image Degrading

Challenge: Un-Recursive (Simple?)

Reputation Awards- April

Signature Of The Month: May 2013

NASM - Using SQLite (Querying Data From A Table)

NASM - Using SQLite (Querying Data From A Table)

WPF For The WinForms Coder - Part 2

Signature Of The Month Winner (April 2013) - Modi123_1

Oblivious Yet Hilarious GameDev Tycoon Stunt

Dream.In.Code Badge Generator! Share Your Flair On Your Site Or Blog.

Making The Transition From WinForms To WPF - Part 1

Intro To Genetic Algorithms