5 Games That Teach You How to Code

These Web games will give you a fun and engaging introduction to the world of programming.

CodeCombat

CodeCombat is an HTML5 role-playing game (RPG) that teaches you fundamental programming concepts.

In CodeCombat, you play a hero adventuring through the game’s levels. The first level is Kithard Dungeon, which covers basic programming concepts. You’re faced with coding challenges throughout your journey, and if you overcome them, you’ll unlock the next level and earn experience points (XP) that you can use to improve your hero.

CodeCombat is appealing to young, aspiring programmers. According to an in-game survey, 62% of CodeCombat’s users are under 18 years old.

CodeCombat supports five programming languages: JavaScript, CoffeeScript, Lua, and Python. The game covers a wide range of programming topics — strings, variables, method invocation, vector drawing, and much more.

Code Hunt

Code Hunt is a Sci-Fi-themed HTML5 game developed by Microsoft Research.

In this game, you play as a code hunter tasked with repairing code so that it returns the expected result. There are 14 levels, called Sectors in the Code Hunt nomenclature, for you to complete.

Code Hunt supports either Java or C#. Programming concepts you’ll learn include arithmetic, loops, and conditions.

Teachers who would like to extend the game with additional Sectors can do so by first reading the Code Hunt Designer Manual.

CodinGame

CodinGame is a huge suite of challenging games for programmers. If you want to improve your coding skills, playing CodinGame is a fun way to do so.

Over 20 programming languages including PHP, C, and JavaScript are supported by CodinGame. The user interface is feature-packed and can be customized. For example, you can choose your code editor’s style: "Emacs", "Vim", or "Classic" (the default theme).

The game can be played on single player mode or multiplayer mode. In multiplayer mode, you can solve CodinGame challenges with other users.

Screeps

Screeps is a massively multiplayer online game (MMO) for JavaScript programmers.

The game is an open-world strategy game where you control units, called creeps, that will help you mine resources, establish your territory, and so forth. Being a multiplayer online game means your creeps will be alongside the creeps of other players.

Controlling your creeps involves writing JavaScript. (Screeps = scripting your creeps.) To learn how to play the game, hit up the docs.

FightCode

In FightCode, the objective is simple: Create a robot that will defeat the robots of other players.

How do you create a robot? By writing some JavaScript. For example, you can use the .rotateCannon() method to rotate your robot’s cannon by a certain number of degrees when a certain event happens.

Before building your indestructible, world-dominating robot, the first step you’ll need to take is to read the docs to learn how to code a robot.

Read Next

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Jacob Gube is the founder of Six Revisions. He’s a front-end developer. Connect with him on Twitter and Facebook.

The post 5 Games That Teach You How to Code appeared first on Six Revisions.

by Jacob Gube via Six Revisions

Creating PDFs from Markdown with Pandoc and LaTeX

If you've read some of my previous posts on SitePoint or elsewhere, you may know that I'm working on a board game. In the game, called Chip Shop, you get to run a computer company in 1980s America.

As part of the project, I'm attempting to open source the entire game as much as possible. After several false starts, I've decided on a basic framework of Markdown for most of the game components—especially cards and the manual.

As the game's website uses Jekyll, the website for the game is generated from the Markdown files. I intend to have premium pre-boxed and print-yourself versions of the game, and to achieve this I need to generate PDFs from the Markdown files.

What I'm Trying to Accomplish

My ideal workflow is to generate the PDF files at the same time as generating the website, rather than generate the files as visitors request them. This rules out my usual option for PDF generation, wkhtmltopdf, as it generates PDFs from already generated HTML. Another reason it's not an option is that I want the PDF card versions to look different from the HTML pages, and Jekyll lacks any kind of view mode feature to accomplish this without resorting to complex CSS rules.

The Markdown template file for cards in the Chip Shop game contains a lot of Markdown front matter fields for game mechanics. Not all are used on every card. For convenience during printing, I need to fit as many cards on an A4 page as possible—in this case, a 3x3 grid. Eventually the pages will need to be double-sided, but I haven't implemented that yet.

Enter Pandoc and LaTeX

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Any internet search looking for solutions to generating PDFs from Markdown will lead you down the Pandoc path. Pandoc is an open-source, Swiss Army knife markup conversion tool that supports a wide and growing variety of input and output markup formats.

To generate PDFs with Pandoc, LaTeX is needed. LaTeX has its roots in the scientific research community, and is a document declaration and layout system. Combining Pandoc and LaTeX allows us to use variables, and thus to generate PDFs from a series of Markdown files and support Markdown front matter.

Despite the power of Pandoc and LaTeX, I couldn't find any way of combining multiple PDFs (cards) onto one page, especially when using variables from Markdown files. After much research, I settled on PDFJam, a simple command line tool for this requirement.

Installing Dependencies

Markdown

You need no extra software for Markdown, except maybe an editor and there are so many of those, I suggest you read a few SitePoint posts to make your choice.

Jekyll

I'll continue to use Jekyll in my examples taken from my game to illustrate the build process, but it isn't an essential part of PDF generation if you don't need a website.

Pandoc

On my Mac, I installed Pandoc with Homebrew, but there are options for all operating systems.

LaTeX

There are lots of opinions on the best way to install LaTeX, depending on what you need or intend to do with it. A full installation of its common tools and libraries can near 2GB, but for most purposes a minimal installation will be enough. Read the project's download page to find the best option for you.

For this tutorial, we'll be using the xelatex engine, as I use custom fonts. But you can select any engine that supplies specific features you require.

PDFJam

Depending on how you installed LaTeX, you may have PDFJam installed already. (Check by typing which pdfjam in the terminal.) If you haven't, then find details on installation here.

Continue reading %Creating PDFs from Markdown with Pandoc and LaTeX%

by Chris Ward via SitePoint

Responsive jQuery Pop Up Gallery

In this tutorial you will lean how to create a an awesome popup gallery. Each gallery will have a small preview animation. This tutorial will provide you with five different popup galleries.

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React Data Fetching with Relay

React is ushering a new era in front end. Published by Facebook, it has rapidly become a popular library used in production by many technology companies. In this article, we’re going to discuss a new complementary React framework called Relay.

The Problem With Data Fetching In React

As React has grown in popularity, the scale and complexity of the projects built with React has grown along with it. React is primarily a view layer library. This has caused some teams to hit unknown territory or limitations while building projects that require a different infrastructure. Facebook has been proactive in offering support and guidance during these growing pains.

Flux

One of the early growing pains for developers using React was event handling. Facebook responded to this issue by publishing Flux, which is an abstract pattern that encouraged unidirectional data flow for handling events in React.

I’ll assume some familiarity with Flux, so I won’t discuss the details of it in this article. In case you aren’t familiar with this topic, you can give a reading to this article by Sandeep Panda or take a look at this page about Flux.

Flux has taken the React ecosystem to the next level. As developers started to get more familiar with Flux, some issues emerged. Flux has been great for managing data as application state, but populating the initial state into an application has been a source of friction.

Continue reading %React Data Fetching with Relay%

by Kevin Zettler via SitePoint

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