Re: Is there a way to create "cross-platform scripting" in GWT?

On 26/06/2013 13:06, Sebastien Diot wrote:
> I would like to make a "web game" with GWT, and have some of the code "scripted" rather
> then compiled, to allow dynamic updates/tweaking without rebuilding and re-deploying.
>
> Now the hard part is, what scripting language could I use to execute the scripts that
> would both run within the JVM and in JavaScript on the browser?
>
> While "JavaScript" would seem like an obvious answer, I fear it would not do, due to the
> fact that is doesn't support "longs" natively (which I use a lot as IDs ...). Maybe there
> is an easy work-around, I haven't actually dived into GWT, yet so I would not know about
> it. I do know that GWT can compile Java code to work correctly as JavaScript even with
> long, but I don't know if the same solution can be used within hand-made scripts.

You can use Lua, commonly used to script games.
There are some implementations in JavaScript, for example:
http://kripken.github.io/lua.vm.js/lua.vm.js.html
which is optimized and fast.
It might have the same issue with longs, thought, like most languages compiling to
JavaScript... unless a specific workaround / implementation is made.

I haven't tried it in GWT...

--
Philippe Lhoste
-- (near) Paris -- France
-- http://Phi.Lho.free.fr
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