Re: Testing for the presence of lua functions from C

[miles <miles@...>]

How about this?

	if (fredname_IsDestroyed) then
		fredname_IsDestroyed()
	end

Miles Johnson [miles@spaceninja.com]
When you put down one mother, you puttin down mothers all over the world!
-- Mr T.

On Mon, 19 Feb 2001 bwalmisley@btinternet.com wrote:

> I'm considering doing some sort of callbacks from my game to the 
> level script (for events). What I need is some kind of 
> lua_isFunctionPresent.
> 
> What I'm considering is something along the lines of:
> 
> function LoadLevel()
>          -- do stuff
>          object = LoadObject("object\fred.x","fredname")
>          --
> end
> 
> function fredname_IsDestroyed()
>          -- do something
> end
> 
> function fredname_IsHitByEnemy()
>          -- do something else
> end
> 
> So when "fredname" is destroyed something like:
> 
> if( lua_isFunctionPresent("fredname_IsDestroyed")
>       {
>       lua_fn = lua_getglobal("fredname_IsDestroyed");
>       lua_callfunction(lua_fn);
>       }
> 
> gets called.
> Am I barking up the wrong tree here? No doubt the lua gods will say 
> theres some devastatingly simple way to do it (there usually is...) 
> but I cannot find it.
> 
> Benedict
>