For the fourth year in a row we went to GovHack, the world's biggest open-data hackathon, and made a game. We (Paris and Jon) teamed up with Rex, Seb, Matthew, Tim, Arabella, and Josh, and build Beat the Press, a game about news (sort of?) Check out the video, and the website for the project! It was a great way to spend 48 hours.

We're looking forward to coming back to GovHack next year! Thanks to all the organisers and volunteers in Hobart, as well as the other participants. Everyone made it such a great experience as usual!

In London, in October, we'll be giving a talk about our experiences turning open data into video games at OSCON; it's one of our favourite conferences, and we'd love to see you there!

We're running 2-days of online live training, through O'Reilly Media, and covering the latest in Swift programming.

We'll give you an in-depth introduction to Swift, the new language for developing iOS and OS X apps and services. We’ll focus on the latest stable version of Swift, together with the latest Xcode and iOS. We’ll start by getting up to speed with the Swift language, becoming familiar with its fundamentals, and then explore the details of Swift and its standard library, including some of its more sophisticated features. Using Playgrounds, you’ll get hands-on experience writing Swift code throughout the course.

Attendees will get a copy of our latest book, Learning Swift. The course is July 20 and 21, 12:00 PM to 3:00 PM PDT, and you can learn more and sign-up on the O'Reilly Media site.

It's May and we're off to a whole lot of conferences, all in the USA:

• IA Summit 2016, in Atlanta, Georgia 
  • presenting How Do I Game Design? covering how and why games do what they do
• OSCON 2016, in Austin, Texas
  • presenting, together with Tim Nugent, Swift programming for iOS, OS X, and beyond, covering the latest in Swift
• Write The Docs 2016, in Portland, Oregon
  • presenting, together with Tim Nugent, Code the Docs, looking at live programming and documentation environments

If you're at any of these events, come say hello, email us, or tweet us @thesecretlab!

Learn to build apps with us! We'll be running our fantastic 2-day iOS developer training in Melbourne next month! Join us on the 2nd and 3rd of May, and learn all you need to know for iOS development. Only a few tickets left! Everyone gets an electronic copy of our new  book, Learning Swift. Email us if you have any questions.

Complicated stories don't have to be complicated to build. We've already seen how Twine has made it easier than ever to create interactive fiction. Another tool, Yarn, has taken inspiration from Twine, and made it awesomely simple to craft interactive fiction.

This is where we come in. We also love telling stories, so we're absolutely delighted to introduce Yarn Spinner, an open source implementation of the Yarn language that's designed to make dialogue in your games a snap.

We built a tiny little demo game, which is set in space and available for you to play right now! It requires a keyboard to play it, and is compatible with most modern browsers.

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What's Yarn?

Yarn is a very simple text based format, designed to let you write interactive, branching conversations with the greatest of ease. Here's a snippet:

    // Check to see if we've spoken to Sally already
    <<if $spoken_to_sally is 0>>
        // We haven't spoken to her - run the initial conversation
        Player: Hey, Sally.
        Sally: Oh! Hey.
        Sally: You kind of snuck up on me.
        Sally: Don't do that.
        
        // Remember that we've spoken to her
        <<set $spoken_to_sally to 1>>
    <<else>>
        // Run a different conversation
        Player: Hey.
        Sally: Hi.
    <<endif>>
    
    // Now present some options to let the player choose how they'll respond.
    [[Anything exciting happen on your watch?|Sally.Watch]]
    [[See you later.|Sally.Exit]]

Yarn's used in a number of cool games, including Night In The Woods and Knights and Bikes.

What's Yarn Spinner?

Yarn Spinner is a parser and runner for Yarn. It's written in C#, and is designed to be super simple to integrate into Unity games. You just drag and drop a few objects, drag in your Yarn file (which you've written using the excellent Yarn editor), and you've got dialogue running!

I'm already using Yarn's original parser. What does Yarn Spinner do differently?

Yarn Spinner adds a number of useful features:

• Functions are now part of the language, and you can write your own in C#, where they'll be available to your scripts.
• The expression parser is quite a bit more powerful, and can handle most things you throw at it.
• Yarn Spinner is available as a separate .DLL file, which means that it's more separated from your Unity code.
• Yarn Spinner adds more types of values to the language. Where you previously only had numbers, you now also get strings, booleans and null! Woo, programmer toys!

Is it Open Source?

Yes! The whole source code is available under the MIT license, which means that you can use it in commercial games if you want! The only requirement is attribution.

Where can I learn more?

Check out the Yarn Spinner page, here on our site, or the GitHub page to learn more.

At Linux.conf.au 2016, in Geelong, we presented a talk on our experiences building video games at open data hackathons, such as GovHack. The video and slides are now available! The video is available on YouTube, and embedded below, and the slides are available on SpeakerDeck.

Paris Buttfield-Addison https://linux.conf.au/schedule/30351/view_talk Open data is cool, especially when it comes from government. What's even cooler than open data? Games. Games are cool. So why not combine them? This talk explores the potential for spreading the word about open data, as well as providing for deeper engagement with data, through game development.

We had a great time preparing and delivering this talk! You can check out our GovHack entries from 2014 and 2015 online.