Hi
all!
I have pretty much
the same dilemma atm…
The problem with one
script per actor is that they can’t share variables and
functions!
And the problem
having only one lua_state* is that you can’t
duplicate the same script several time without sharing the same variables and
functions for all actors assigned to this script!
Is that
right?
If yes … having the
possibility to make global and local script make
sense?
thx
-----Original
Message-----
From:
lua-bounces@bazar2.conectiva.com.br
[mailto:lua-bounces@bazar2.conectiva.com.br] On Behalf Of herviou
Sent: Tuesday, July 19, 2005 3:24
AM
To: Lua list
Subject: Re: Attach Lua script To C++
class!
Hello,
I have choosen the
same solution as Jason. Here is a (simple) example you can do to register lua
script inside a C++ class (store has a filename)
In C++
pseudo-code:
class LuaAI {
void acting (void); //the
method called to animate your buddy at each frame
StlString _filename; //the AI script
bool
_first;
lua_state*
L;
}
void
LuaAI::acting(void){
if
(_first){
lua_dofile(L,_fileName.c_str());
first=false;
}
lua_pcall(L,0,0,0);
}
Something interresting can be done with this
solution, instead of testing the boolean _first you can have a method that
checks if the _filename has been modify since its last execution, this way you
can modify "on the fly" the behavior of your character!
Personnally I
have choosen to have one lua_state for each character, this way each one has
its own stack of execution,but again that's a personnal choice...
david.
Ive wrote:
O interesting!
Can u be more precise on this and/or point me to some example?
thx
-----Original Message-----
From: lua-bounces@bazar2.conectiva.com.br
[mailto:lua-bounces@bazar2.conectiva.com.br] On Behalf Of Jason Murdick
Sent: Monday, July 18, 2005 3:35 PM
To: Lua list
Subject: Re: Attach Lua script To C++ class!
Sure it is! The two ways I've stored scripts inside C++ classes is to
simply store the script as a string or as a filename/path.
Jason
On 7/18/05, Ive <neosettlers@sympatico.ca> wrote:
Am I at the right place to discuss this?
...
Alright!
What I m trying to do is to assign to each actor in a game environment
a
script ai!
I m wondering if I must do:
lua_State *m_lua;
if ((m_lua = lua_open()) == NULL)
{ Trace("ERROR: LUA initialization failed!\n\n"); }
else
{ Trace("TELL: LUA initialization successful!\n\n");
luaopen_base(m_lua);
luaopen_table(m_lua);
luaopen_io(m_lua);
luaopen_string(m_lua);
luaopen_math(m_lua);
luaopen_debug(m_lua);
RegisterFunction(); /// register all functions
Int l_status = luaL_loadfile(m_lua, in_name.GetName());
lua_settop(m_lua, 0);
if (l_status != 0)
{ lua_error(m_lua);
}
}
to each of the script!
Then update them individually each frame with:
lua_pcall(m_lua, 0, 0, 0);
or
my first guest is to have only one lua_State instance and register all
functions once and then keep track with a pointer to each
luaL_loadfile... but I cant find the way to retrieve them... can
anyone
clear this up please?
Is lua_open() should be call once (then register all possible
functions
once) or to all attached scripts? What is the ultimate way to do this
with out unnecessary overheads?
thx
