LOCINFO
LOCINFO is a text lump designed to place names on areas of the map, similar to Quakeworld .loc files or the ZDaemon SECTINFO lump format. It follows similar syntactic conventions to MAPINFO.
Definitions
All definitions should be on a single line. All location definitions consist of the location type, the location name, and all parameters for that location.
/* <comment> */
// <comment>
Not strictly a definition, but both C and C++ style comments are allowed in this lump.
map <maplump>
This definition is considered a header for other definitions, which designates which map lump in the WAD they apply to.
point <location> <x> <y> <z>
This designates an x, y and z location on the map as a specific location.
rect <location> <x1> <y1> <x2> <y2>
This designates an area of the map as a specific location with one corner point at x1, y1 and the other corner point at x2, y2.
circle <location> <x> <y> <radius>
This designates an area of the map as a specific location with the center point at x, y and a radius. Note that this is a true circular radius, not a square one.
shape <location> <x1> <y1> <x2> <y2> <x3> <y3> [...]
This location type is not implemented yet. More specifically, it is not yet decided if shapes that cross themselves will follow the even-odd rule or non-zero rule.
An arbitrary closed shape with at least three points at x1, y1, x2, y2 and x3, y3. More points can be added, up to a limit of (undecided).
Determining location
For a particular map definition, any location that has an area or volume to it is checked in order, and the first match 'wins'. If no area or volume-based locations match, then the distance from the given location is measured between all point locations. If there are no point locations, no location is returned.