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    Codea Blog

    codea.io · Company blog · on HN since 2014

    The blog for Codea, an iPad app for making games and simulations in Lua, built by the studio Two Lives Left.

    Visit blogHN submissions
    Mobile & AppleGamesProgramming
    What HN says

    HN commenters recommend Codea for teaching kids to program on iPad, often alongside Pythonista and Swift Playgrounds.

    Stats for nerds
    17HN people shared it
    8linked in comments
    428story points
    Apr 2022last shared
    2015people per year2022

    Top posts on HN

    1. 1
      iOS Menu
      1 person · 416 points · first shared 2019 · 134 comments on HN
    2. 2
      Detailing the iOS Menu
      4 people · 5 points · first shared 2019 · 1 comments on HN
    3. 3
      Show HN: Codea Scratchpad
      1 person · 2 points · first shared 2014 · 1 comments on HN
    4. 4
      Looking Through the Shade UI
      1 person · 2 points · first shared 2019 · Discussion on HN
    5. 5
      Codea: Make Games and Simulations on Your iPad
      13 people · 1 points · first shared 2015 · Discussion on HN
    6. 6
      What’s Next for iPad Creativity
      1 person · 1 points · first shared 2019 · Discussion on HN
    7. 7
      Codea's New Autocomplete
      1 person · 1 points · first shared 2021 · Discussion on HN
    8. 8
      Cli
      1 person · first shared 2026
    9. 9
      App store games and apps made with codea
      1 person · first shared 2019

    What HN people wrote when they linked it

    • jkirsteinsFeb 2022

      iPads have a lot of good stuff, I think. I've 2x 7 year old girls, which have iPads. Generally they're limited to 1h/day, but screentime is off for:

      - Codea - https://codea.io - it took a while, but eventually they found out that there's a few sample games, so they thought they'd found a loophole to "no more screentime for games". Then it took a bit longer until they realized they can tweak the source code. "Look at this, no gravity" or "Look at my high score!" (after tweaking the scores to increase in increments of 1000 instead of 1), or "Look, I changed the text messages" etc.

      - Swift Playgrounds - they're not super fascinated with this, but I see them occasionally open it and noodle around.

      - Procreate - they have an Apple Pencil, and any YouTube video about using Procreate is exempt from Screentime limits. This has led to a lot of amazing digital illustrations.

      - Pages - just this simple built-in app is already pretty fun if kids are bored, and something is exempt from screentime. Last weekend one of them asked to go to Starbucks, because she's "writing a novel". She wrote a short story over ~5 pages, and was super proud of it.

      - YouTube - in general, this is my least favorite app of theirs, and I try to police this the most. But any requests for videos where you learn things are exempt from screentime limits (case by case). E.g. Lego builds, origami, drawing instructions, "how to make slime at home" videos, etc.

      This is a great question, and I'm eager to see what…

    • Fr0styMatt88Oct 2019

      There are options, at least if you want something to begin coding with; they're just a bit hard to find for the layperson that isn't following developer news.

      For example, apps that run directly on mobile platforms (specifically, ones that don't need to connect to the 'cloud' to do their compiling):

      - For iOS: Codea [1] (Lua), Continuous [2] (.NET), Swift Playgrounds [3] (Swift), Play.js [4] (Node.js + React Native) plus probably more (on that note, I really hope Continuous isn't abandoned, but it doesn't seem to have been updated in awhile).

      - For Android: AIDE [5], TIC-80 [6], probably others (I'm not as familiar)

      Moving up from mobile, you have FUZE4 Nintendo Switch [7] for the Nintendo Switch (excellent, but needs a bugfix update as there's lots of little annoyances). Probably the most kid-friendly thing there is right now IMHO, if you take into account the platform.

      On the PC, there's just a huge amount of stuff. Minecraft [8], GameMaker [9], GDevelop [10], Godot Engine [11]. These are at least suitable for early teens.

      [1] https://codea.io/
      [2] http://continuous.codes/
      [3] https://www.apple.com/au/swift/playgrounds/
      [4] https://playdotjs.com/
      [5] https://www.android-ide.com/
      [6] https://tic.computer/
      [7] https://www.nintendo.com/games/detail/fuze4-nintendo-switch/
      [8] https://www.minecraft.net/en-us/
      [9] https://www.yoyogames.com/gamemaker
      [10] https://gdevelop-app.com/
      [11] https://godotengine.org/

      Note: Yes, obvious game-making bias here :)

    • simonhNov 2020

      There is already a thriving ecosystem of very powerful development apps on iOS.

      Pythonista is a full copy of Python 2.7 and 3.x, with an IDE, links to the GUI APIs and even a basic visual GUI designer for the iPad and iPhone. You can sync your scripts source code with Macs and other iOS devices through iCloud.

      http://omz-software.com/pythonista/

      Pyto is another Python app for the iPad, it's not as mature but is 100% open source on Github.

      https://apps.apple.com/us/app/pyto-python-3/id1436650069

      Codea is an IDE for Lua with extensive integration with the iPad native APIs and fantastic graphics capabilities.

      https://codea.io/

      There are several others for different languages, but I think these are the most mature. Some of these have even been used to publish apps on the App Store, by dropping the code into a Python or Lua app container project in XCode. You can also integrate them with Git from iOS using an App called Working Copy.

    • interpol_pJun 2017

      I've just submitted an update to Codea[1] that allows for the importing of user projects[2]

      It has been "In Review" for a suspiciously long time now. So I think it might be testing the application of these updated policies.

      I have often submitted updates to App Review which include the ability to download and install executable code (along with review notes detailing my reasoning) with the knowledge that they would be rejected. I have also appealed Apple's rejections in order to effect a change in policy for the App Store. At some point during phone calls with the reviewers they told me they were "advocating for policy change internally on my behalf" even if they couldn't approve my app right now. I'm so glad policy has changed now.

      [1] https://codea.io

      [2] https://twitter.com/twolivesleft/status/873692454947442688

    • walterbellJan 2019

      JSBox source code: https://github.com/cyanzhong/xteko

      > JSBox is not only a full-fledged environment for standard JavaScript, but also provides many utilities: safe environment to run JavaScript natively ... editor to write JavaScript, multiple themes, auto completions and snippets... VSCode extension ... APIs to interact with iOS ... Almost all the cool tech in iOS: Today Widget, Action Extension, 3D Touch, Home Screen

      Discovery is non-existent on the App Store. Other than blog posts, is there a good way to find new scripting/dev environments as they are released for iOS?

      https://scriptable.app is another JS runtime.

      https://codea.io is a Lua runtime.

    • jasonmirkNov 2015

      There is Codea ( http://codea.io/ ) already which lets you make simple games and learn programming and I dont see tons of people using it. It's also less scary than Xcode.

      I tried to "switch" to an iPad and the lack of a filesystem is its Achilles heel. You need to think of files if you are a developer or if you want to become one. iPad is anti-files so if you grow up using one you get brain damaged.

      And no emacs so...useless.

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