Re: Getting lua to travel on .NET and the like

[Raymond Jacobs <raymondj@...>]

I agree, just seems no one has undertaken this yet, I wonder why.

Though as awesome as lua is, the C code is very daunting :)

-Raymond

On Fri, Sep 4, 2009 at 10:10 PM, Timothy Baldridge <tbaldridge@gmail.com> wrote:

No you can't use Reflection.Emit in XNA (and I assume Silverlight as
well). That's why I think we need a 1:1 conversion of the existing C
routines to C#. That way we use C# to interpret the Lua code. It
shouldn't be all that slow.

Timothy

On Fri, Sep 4, 2009 at 9:52 PM, Raymond Jacobs<raymondj@gmail.com> wrote:
> We looked briefly at XNua; notably it said coroutine support was untested
> and potentially broken;
>
> http://www.xnua.com/xna_lua_docs_limitiations
>
> coroutines are a major feature for us, so this was a bit disturbing, but we
> haven't confirmed it yet.
>
> it also *seems* XNua hasn't been updated since 2007, which bodes well for
> any further work being done on it (should there be major features missing).
>
> As for using .NET bytecode at runtime, I dunno if Silverlight or XNA allow
> that, might seem like a security risk *shrug*
>
> -Raymond
>
> On Fri, Sep 4, 2009 at 3:57 PM, Timothy Baldridge <tbaldridge@gmail.com>
> wrote:
>>
>> Well, there is this: http://www.xnua.com/xna_lua_xnua
>>
>> XNua takes C# code and translates it to .Net bytecode. This is fine,
>> but I would like to see a bit higher level abstract of this.
>>
>> I've been digging into this lately, and it doesn't seem all that hard
>> to do a port of Lua to C#, where the lua execution loop is a C# loop.
>> This is a project I may start on soon, but haven't yet. So I'm
>> interested in hearing other people's thoughts about the whole issue.
>>
>> Timothy Baldridge
>>
>> On Fri, Sep 4, 2009 at 1:59 PM, Raymond Jacobs<raymondj@gmail.com> wrote:
>> > Greetings all,
>> >
>> > I'm currently developing a write-once-run-anywhere game authoring tool,
>> > which uses lua for scripting.
>> >
>> > Our main 'VM' is in C++/Win32/DirectX, but we have strong aspirations
>> > for:
>> >
>> > Flash10
>> > Silverlight
>> > XNA
>> >
>> > So far, I've found very little in the way of getting Lua to run on these
>> > platforms.
>> >
>> > The closest I have come, is using lua-alchemy for Flash/Flex; but they
>> > lack
>> > the C-API which we rely on.
>> >
>> > I've found various C#/.NET lua implementations however, due to the
>> > 'lockdown' of silverlight and XNA it doesn't seem they will work.
>> >
>> > So the questions are;
>> >
>> > Is there any concern among the Lua group about the difficulties of
>> > spreading
>> > Lua to these new and popular technologies?
>> >
>> > Are we simply waiting for a 'native' Lua VM Library to be written by an
>> > industrious fellow, in C# or the like?
>> >
>> > What are some basic difficulties in writing/porting a lua compiler/vm
>> > with
>> > the C-API present?
>> >
>> > Am I mistaken in any of my assertions, maybe I'm just missing something?
>> >
>> >
>> > Any feedback i can get on this would be excellent,
>> >
>> > Thanks,
>> >
>> > Raymond Jacobs
>> > Owner,
>> > Ethereal Darkness Interactive
>> > www.edigames.com
>> >
>> >
>> >
>> >
>> >
>>
>>
>>
>> --
>> “One of the main causes of the fall of the Roman Empire was
>> that–lacking zero–they had no way to indicate successful termination
>> of their C programs.”
>> (Robert Firth)
>
>

--

“One of the main causes of the fall of the Roman Empire was
that–lacking zero–they had no way to indicate successful termination
of their C programs.”
(Robert Firth)