Enemies are moved along navmesh paths without collision, so a wall only stops
them if their path stops at it. dpWorld now keeps a list of such walls, each
with the collision filter it blocks with, and cuts a path where it first walks
into one (a little short of the wall; a mover inside one can walk out).
Which objects block comes from data (dpMovementBlockers::BlockingFilter):
- navmesh carvers (navmesh_carver in the level config, which the client reads
with add_to_navmesh and carver_only) block every mover;
- solid objects whose collision group touches enemies and not players (group 18,
e.g. "FV - Enemy Blocking Volume", "PR - Pet Blocker") block what that group
touches.
dpShapeBox gains SegmentEntry, a segment test against the rotated box.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
