So You Want A Tutorial: Doors and Teleporation
None of it matters, really. The noobs who would need to use a library for something would never bother to actually read through it anyway.
noobs who would need to use a library
The awkwardly placed whitespace, and unnecessary comments certainly contribute to the poor readability.
One catch would be having a door that's shown as being two tiles wide on the outside but one tile wide on the inside.
His library is pointlessly overcomplicated, barely readable, and still has no type checking.
turf/Enter(mob/m) m.loc = locate(4, 30, 1)