Module for how far along a level's own progression Lara has got.
TR4 marks the points of a level with flip effects, and its guides read them: Von Croy waits at a waypoint until Lara has reached it, says the line that belongs to it, and only then moves on. A level uses the same marks to tell a first visit from a return.
Nothing about a waypoint is positional. It counts progress, and it lasts as long as the playthrough rather than the level, so it is saved with the game.
trx.waypoints.current (trx.waypoints.Num). Where Lara has reached, or nil before she has reached anywhere. Setting
it carries the furthest reached along with it where that is further on.
trx.waypoints.pad (trx.waypoints.Num). The pad Lara crossed this frame, or nil on any frame she crossed none.
It says where she is standing now rather than how far she has got, and
it is meant to last the one frame: whoever sets it clears it again at the
start of the next, which is nil here.
Setting it carries trx.waypoints.current along with it, but leaves
trx.waypoints.highest alone.
trx.waypoints.highest (trx.waypoints.Num). The furthest Lara has ever reached, or nil before she has reached
anywhere. It never falls, so a level that lets her walk back can still
tell how far she got. (read-only)