This is perhaps slightly off-topic, so apologies if it's over that particular line, but this round up of releases of game source code has been making the rounds lately: http://www.codersnotes.com/notes/the-man-behind-the-curtain

I knew about quite a few of these, in particular the id Software ones since they're famous for releasing their code, and I've read a bunch of the code reviews linked along with those (which are fantastic). Others, like Star Control 2 and some of the others I hadn't seen.

Since many of the games are old enough that they were programmed in a very low-level way like we're doing with Handmade, I figured some of them might be interesting/educational. :)

The Shadowgrounds games are fun. The source code was release a few years back:

shadowgrounds

Be warned, the code is a bit of a mess...

Some of games in Humble Bundle are open-sourced as well:
Aquaria - http://blog.wolfire.com/2010/06/Aquaria-goes-open-source
Gish - http://blog.wolfire.com/2010/05/Gish-goes-open-source
Lugaru - http://blog.wolfire.com/2010/05/Lugaru-goes-open-source
Penumbra Overture - http://blog.wolfire.com/2010/05/Penumbra-goes-open-source
Revenge of Titans - http://www.puppygames.net/blog/?p=914

I totally forgot that the source to Doom 3 got released. Interesting stuff. Looked at the audio source for Doom 3, [strike]XAudio 2[/strike][strike] (and that game was released in 2004). Why are we using that messy DirectSound stuff again? :whistle:[/strike]

"The first version of XAudio2, XAudio2 2.0, shipped in the March 2008 release of the DirectX SDK."

Source: https://msdn.microsoft.com/en-us/...ws/desktop/ee415802(v=vs.85).aspx

Doom 3 source: https://github.com/id-Software/DO.../master/neo/sys/win32/win_snd.cpp

Looks like DirectSound to me.

You're looking at the version of Doom 3 that shipped much later, the "BFG Edition".

Whoops, my bad. The Doom 3 source is still quite interesting to look through.

Doom 3 BFG (released in 2012) uses XAudio2: https://github.com/id-Software/DOOM-3-BFG/tree/master/neo/sound