Hacker News Reader

Comment by troymc | Hacker News Reader

Fun fact: Second Life, the virtual world, has an in-world scripting language called LSL, and it gets compiled to bytecode that gets run on a virtual machine. Initially, it got compiled to bytecode that ran on an in-house virtual machine, but in 2008, they switched over to compiling LSL to Mono bytecode to run on the Mono virtual machine. I wonder if that's still how it works. (I haven't been involved with SL for a long time.)

View on HN

It does indeed still work that way! We even still support the old, in-house VM, known as LSO2: https://wiki.secondlife.com/wiki/LSO

We're hard at work adding Luau (https://luau.org) as a supported language for both in-world scripting as well as client/viewer-side scripting. As a handy byproduct of that, LSL will also gain the ability to be compiled to Luau bytecode, allowing us to eventually (someday, at least) shed any need for our custom-patched version of Mono 2.6. More juicy details here: https://wiki.secondlife.com/wiki/Lua_FAQ

Source: I work at Linden Lab. If these sorts of things excite anyone, we're hiring! https://lindenlab.com/careers

Always nice to see that SL is still going. I'll probably never remember my login to my old 2006 era account but the years of weird virtual world memories remain.

Cool! LSL is such an interesting language. Having an explicit state with entry and exit functions is quite unique I think, and seems like it could be useful outside of SL. Given that scripts are isolated and communicate via messaging over channels (IIRC), was there ever any interest in executing it on the BEAM virtual machine?

Thank you, that explains the Mono in SL.

Reply on news.ycombinator.com