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Lua script manager

Started by igna92ts Aug 17, 2014 at 4:56 AM 1 replies 2.2k views

Original Post

Aug 17, 2014 at 4:56 AM

I made a very simple 2d engine with directx and I was thinking on including a scripting system since tweaking values on the engine code everytime I want to try somthing its becoming a little annoying. I understand how to somewhat use lua scripts for c++ code but since I have to register the lua functions I dont know how to create new functions on a script and register them without touching the engine code myself. If there is another way to get variables from lua functions in c++ code without registering them I dont know how. (Lua beginner)

Endurion

Aug 17, 2014 at 5:05 AM

With the Lua API you can access everything that a Lua script can do as well.

To get a global variable for example:

  lua_getglobal( LuaInstance, VarName.c_str() );
  std::string result = ToString( -1 );
  lua_pop( LuaInstance, 1 );

frob

Aug 17, 2014 at 5:07 AM

Unfortunately the hardest part is getting the initial system in place.

Have you looked into LuaBind?

Sadly it usually just takes a lot of effort to get enough complete. Much of it is repetitive, boring, but at least is well-described on the Lua website tutorials. It takes more than a little effort to build up enough functionality that the system becomes script driven instead of code driven.

Once you have a large number of scripts and the engine is mostly working okay it becomes quite easy.

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