The new gauge can be accessed by the scripting API with which a function
can be set which will be called when this gauge is rendered. This can be
used for exposing the HUD gauge positioning and RTT options to the
scripting API without a lot of work needed for the script writer.
There is currently only one rendering function implemented since this is
only a proof of concept.
This is pretty much similar to the value setting changes. This is a much
safer solution for getting values out of the scripting system which has
compile time validation for move-only types.
This commit changes the way the scripting API works by properly using
the newly available type information for moving the FSO resources into
the memory supplied by lua. This has full support for rvalue references
which will make it possible to use move-only types with the scripting
API.
This also makes the API much safer to use since it doesn't use pointers
to local values anymore which made it very hard to use the API in a
different context without causing issues.
This only covers writing the FSO values to Lua. Getting values back is
not covered yet.
This maintains the type information which can be used for enforce
const-correctness and also for implementing more advanced ways of
handling the type information.
asarium