Returns whether an area is natural or not
Area to test whether is natural
Returns AREA_NATURAL if the area oArea is natural, AREA_ARTIFICIAL otherwise.
Returns AREA_INVALID, on an error.
The natural / artificial status of the area is set in the area's properties under the advanced tab.
AREA_NATURAL is declared as 1 in nwscript.nss, and AREA_ARTIFICIAL as 0. So you could also say that the function returns TRUE if the area is natural, and FALSE otherwise.
author: Lilac Soul, editor: Mistress