Comments for Code Swamp

Comment on CodeStock 2011 by Bryan Hunter

Bryan Hunter — Wed, 16 May 2012 01:36:04 +0000

Cool. Thanks Curt.

I’ve never written games, but I’ve heard of several game companies that use Erlang for their back-ends.

You’ll find interesting slidedecks and videos by searching: “wooga erlang” and “erlang demonware”

Here are more neat things:
http://code.google.com/p/erlworld/ < - Concurrent game framework
http://marcuswelz.com/?s=erlang < - HTML5 games with Erlang backing
http://www.theregister.co.uk/2011/02/05/battlestar_galactica_mmp/
http://www.guildsoftware.com/naos/inbrief.html
http://www.wings3d.com/

You’re digging into cool stuff. Please let me know how it goes.

Comment on CodeStock 2011 by Curt

Curt — Wed, 16 May 2012 00:39:25 +0000

Hi Bryan, Thanks for the great post. As a .NET veteran who is used to C# (also done some Java work) this language is a bit of a mind twist. I actually heard about Erlang from googling “node.js”, and found a few posts/blogs that really “warned” me about how node is a “hack”. And your Virdings quote seems to ring in my ears regarding node. But I do know all tools do have a purpose… its just lining up the right tool for the right job. I have been building an HTML5/Javascript game as a hobby, and was thinking about adding a multiplayer capability, (which is when I was googling node) given that it would be in real time I was trying to figure out if Erlang is what I need to add to my toolbox for this project. Do you have any thoughs on how Erlang might be brought into the mix for realtime game development for the web? Any advice is most appreciated as I am flying blind on this one! I just want to thank you again for all the great information on your site, and I’m looking forward to reading your book! Thanks again, Curt.

Comment on Installing Erlang R14B03 on Ubuntu 11.04 by Oren

Oren — Tue, 24 Apr 2012 21:51:26 +0000

Saved me lot of time

Comment on Erlang for .NET Developers by Tormod

Tormod — Mon, 02 Apr 2012 16:25:09 +0000

Definitely interested.
I hope for some cool “offload-into-Erlang” stories. The street cred of Erlang cannot be denied, but the story includes how unsuited it is for productive GUI work.

Comment on Setting up an Erlang Rig on Windows by Thomas Lukasik

Thomas Lukasik — Sat, 31 Dec 2011 03:20:16 +0000

Bryan,

There’s one other thing to change if you’re updating your instructions for the latest Erlang release — you not only need to adjust the path in your configuration file from ‘erl5.8.4′ to ‘erl5.9′, but you also have to change the path from ‘tools-2.6.6.4′ to ‘tools-2.6.6.6′ as shown below:

(setq load-path (cons “c:/erlang/erl5.9/lib/tools-2.6.6.6/emacs” load-path))
(setq erlang-root-dir “c:/erlang/erl5.9″)
(setq exec-path (cons “c:/erlang/erl5.9/bin” exec-path))

After installing the latest Erlang/OTP release (R15B) in ‘C:\Erlang\erl5.9′ and making the adjustments to the paths described above, everything worked fine.

TJL

Comment on Setting up an Erlang Rig on Windows by Thomas Lukasik

Thomas Lukasik — Fri, 30 Dec 2011 16:12:08 +0000

>> “The easiest fix: uninstall Erlang and reinstall it”

Bryan,

That being the case, it only made sense to install the latest Erlang release.

But FYI: the default, extended path (the “..\erl5.8.4″ part that I’d “lopped off”) is now “..\erl5.9″ in the new release.

So if you’re planning to update your ‘emacs rig’ instructions, you might want to take the latest path into account.

TJL

Comment on Setting up an Erlang Rig on Windows by Bryan Hunter

Bryan Hunter — Fri, 30 Dec 2011 08:10:51 +0000

Ah, I see. My note on where to install Erlang messed you up. By default the installer (otp_win32_R14B03.exe) wants to install Erlang here “C:\Program Files\erl5.8.4″ but a better place is here “C:\erlang\erl5.8.4\”. When I said “C:\erlang\” I meant there instead of “C:\Program Files\”. Wasn’t thinking folks would lop of the ending (erl5.8.4). My bad. I’ll update the post above to make that bit less confusing.

So to your particular problem… the file “~/ErlangRigEmacsConfig/erlang-config.el” looks for “erlang-start.el down in your Erlang directory (lib/tools-2.6.6.4/emacs/). Your install and what it’s looking for don’t jive. The easiest fix: uninstall Erlang and reinstall it to “C:\erlang\erl5.8.4\” and everything should work. Alternatively, you can edit the “~/ErlangRigEmacsConfig/erlang-config.el” to point at your actual location (chop off the “erl5.8.4″).

I have some un-pushed improvements to the rig to make it less “path brittle”. My goal is to release it, a screencast, and an updated post this weekend.

Comment on Setting up an Erlang Rig on Windows by Thomas Lukasik

Thomas Lukasik — Fri, 30 Dec 2011 06:41:35 +0000

Bryan,

Renaming the file as suggested got me past the immediate problem — and to the desired black background — but then another error message followed:

Warning (initialization): An error occurred while loading `c:/Users/tlukasik/.emacs’:

File error: Cannot open load file, erlang-start

Starting emacs with the debug option just told me pretty much the same thing:

Debugger entered–Lisp error: (file-error “Cannot open load file” “erlang-start”)

A subsequent search for file ‘erlang-start’ yielded only 1 file: ‘erlang-start.el’ in ‘C:\Erlang\lib\tools-2.6.6.4\emacs’

It looks like either the file name on disk needs to be changed, or the reference to it in the configuration file does — or am I misunderstanding something?

TJL

Comment on Installing Erlang R14B03 on Ubuntu 11.04 by Bryan Hunter

Bryan Hunter — Thu, 08 Dec 2011 03:48:51 +0000

Thanks James. Here’s the script to build Erlang 14B04: https://gist.github.com/1418287

I’ve tested it on a fresh Ubuntu 11.10 install.

Comment on Installing Erlang R14B03 on Ubuntu 11.04 by James Aspinwall

James Aspinwall — Thu, 08 Dec 2011 03:06:10 +0000

The new version is R14B04. Just in case you want the latest and greatest.