Hello, how can I get a list of all C API functions with Lua? For example, there are plenty C functions in a game(Crysis) which can be called with
Lua: g_gameRules.game:FunctionInC()
There are many functions I know but how can I get all available functions?
If g_gameRules.game is a table, traverse it looking for functions. If it is a userdata, look inside its metatable. (Also if it is a table.)
There may or may not be an easy way to enumerate all of the C functions.
The g_gameRules.game may actually contain the functions, but this would be unusual. Something like the following will list these functions.
for k,v in pairs(g_gameRules.game) do if print(k,v) end
More likely g_gameRules.game will have a meta-table with an __index entry that is either a table or a a function. If the __index entry is a table the following will list all the functions.
for k,v in pairs(getmetatable(g_gameRules.game).__index) do print(k,v) end
This will only determine the names of the functions, the parameter list will still be an unknown.
If however, the __index value for the meta-table is a function, then there will be no easy way to list the functions.