Re: How can I have multiple scripts running simultaneously and have scripts pause and wait? (eg. using Lua for a MUD)

["John Klimek" <jklimek@...>]

How would you guys handle waiting for user input?

The way the game will be programmed is with asynchronous sockets that
are polled every few seconds for new data.  This means the user can
respond quickly or take a very long time but I need to somehow resume
(?) the script that asked for the user input.

On 8/8/07, L-28C <kixdemp@gmail.com> wrote:
> I would use threading and multiple lua_States. :-)
>
> John Klimek wrote:
> > Let's say I wanted to a text-based multi-user game (eg. a MUD) and I
> > wanted to use the Lua scripting language.
> >
> > We will have lots scripts running and I'm not sure how to handle a few issues:
> >
> > 1) Should I just have one lua_state or one lua_state for each user?
> > 2) Suppose I want to ask the user a question and get a response in a Lua script?
> >
> > Example #1:
> >
> > @AskQuestion.lua
> >
> > function YesAnswer()
> >   io.write("The user answered yes!");
> > end
> >
> > function NoAnswer()
> >   io.write("The user answered no!");
> > end
> >
> > Player.AskQuestion("Do you like pie?", YesAnswer, NoAnswer);
> >
> > Example #2:
> >
> > @AlternateAskQuestion.lua
> >
> > -- Using C syntax, but just pretend it's Lua-syntax
> > if (Player.AskQuestion("Do you like pie"?) == ANSWER_YES)
> >   io.write("The user answered yes!");
> > else
> >   io.write("The user answered no!");
> >
> > The two examples should accomplish the same thing, but the first
> > example can sort-of "queue" the functions and C++ can call them based
> > on the user's response.  The second example must receive a result from
> > AskQuestion before completing the if statement.
> >
> > The other problem is that many users will have these scripts running
> > all-the-time.  There will also be more scripts running on items,
> > monsters, etc.
> >
> > I don't know if I will use threading in my application, but everything
> > should be asynchronous so one script cannot tie-up the entire server.
> >
> > Can anybody help me out with how to implement this?
> >
> > Thanks!
> >
>
>