Game Maker's language doesn't have features that let you use scripting languages, gmLua allows to use Lua scripts in your GM game.

Features:

• Call GM functions and scripts from Lua scripts (thanks to GMAPI)
• Call Lua functions from GM
• Simple events system

Download

• gmLua v0.4

How to compile

You can compile gmLua yourself. It depends on two libraries: GMAPI and Lua5.

GMAPI is written by a Polish programmer, Snake, you can download it here. It allows you to interact with GM from C++.

You can download the Lua binaries here.

gmLua is developed and compiled with Microsoft Visual C++ 2008, the source includes a project file.

Example Usage

In GML:

luaStart();

lua = luaNew();

if(!lua)
{
    show_error("Failed to create Lua state.", true);
}

luaRegister(lua, "showMessage", showMessage);
luaLoadFile(lua, get_string("Type your Lua script path (default: game.lua)", "game.lua"));
luaEvent(lua, "onCreate", 1, id);

In Lua:

function onCreate(id) -- onCreate, called from GML.
	showMessage("ID: " .. tostring(id))
end

Todo

• Redo registering GM functions

Changelog

v0.4

• finished new system for calling GM functions

v0.3

• redid most of the DLL
• removed calling of GM function temporarily, new method being thought of

v0.2

• renamed GM scripts
• support for registering default GM functions
• added luaCall function which make able to call Lua function
• rewritten code
• some bug fixed
• usage of new GMAPI