Every corridor was one tile wide, which in a bullet hell is a shooting
gallery: there is no side to step to, so anything fired down it lands.
Each leg of each L now rolls its own width between 2 and 4, so a tunnel
can open up or pinch at its bend rather than every connection being the
same pipe. Carving stops one tile short of the map's outer ring, which
keeps the world sealed however close to the edge a wide tunnel runs.
Found while doing it: 45% of generated arenas had their own walls carved
open. The last corridor aimed at the door tile, which sits ON the
arena's west wall, and an L that bent the other way ran its second leg
straight down that column -- 181 of 398 arenas, measured. It now aims at
the tile outside the door and always arrives along the door's own row,
and the arena is excluded from every carve, so a wide tunnel stops at
the wall instead of eating into it.
Three tests: no corridor tile sits in a passage one tile wide, every
width in the range turns up and none falls below two, and every arena
keeps every wall tile it was drawn with. The overshoot at a bend is
cosmetic -- the legs always overlap on the inner side, so removing it
bevels the outer corner and narrows nothing -- and the comment now says
so rather than claiming otherwise.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
claudeandClaude Opus 5.5
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