The map is now a torus - walk off any edge and reappear on the opposite
side, no edges or corners. A new Toroidal helper carries all wrap-aware
distance/direction/movement math, and every position comparison in the sim
routes through it: soul pressure, node + structure sensing, gift/teacher/
neighbor scans, bonding, movement, the spatial grids (NPC and node cell
index both wrap their bucket lookups at the seam), and town centroid
(averaged in anchor-relative deltas, since averaging raw coordinates across
the seam is meaningless).
Towns re-laid as a 2x2 even grid on the torus (quarter/three-quarter points,
320 & 960 on a 1280 world): every town sits exactly 640 units from each of
its two axis-neighbours in all directions, wrap included - no more edge-boxed
North/South that could only forage inward. World grew 1152 -> 1280 with
resources scaled to area.
Verified over a 240-day soak: all four towns alive and balanced (pop 23-25),
population stable ~96, 119 bonds (27 cross-town), cultures still diverge, and
wrapped distances correctly cap at the torus half-diagonal (no false
across-seam blowups). 183s headless.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
mmcghen
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