This is probably a bug from when I changed how those functions worked.
The function is supposed to return if it successfully retreived a value
from the Lua stack but instead of returning true if it was, it returned
the value it just retrieved. This works fine if that value is true but
causes issues if it was false.
This add a system for adding generic instances of the DynamicSEXP class
to the SEXP system. The only implementation at the moment is the LuaSEXP
which is used by the mn.addSEXP lua API to allow Lua to add new SEXPs.
Since this requires that FRED also runs lua scripts I added a mod table
option to enable scripting in FRED. Since the current scripts are not
built with FRED in mind it would likely break all these scripts if FRED
would be opened with normal scripting enabled.
This fixes#1320.
The iterator known as _L, besides having an absurdly poor name,
clashes with standard headers on OpenBSD -current at the time
of writing. This commit is the minimum needed to build on
OpenBSD with an updated C++ standard library.
This adds a utility library for handling all the nasty lua referencing
stuff. It also provides functions for convienent usage of lua objects
such as tables and functions which allows to use them directly from C++
code without using the ugly Lua C-API.