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Patrick Buckley
b76b2a98d0
The look of the next age — the modern equivalent of the ASCII->CP437 leap. Full Unicode is available now, but the whole stack (text frames, golden tests, the Watch's 1ch grid) assumes one glyph = one column, so the enabling piece is a WIDTH RULE, not the glyphs themselves. - textwidth.is_grid_safe: one code point, printable, East-Asian width not Wide/Fullwidth, no combining/format/control category. This is the one-glyph-one-column contract. Ambiguous-width glyphs are ACCEPTED on purpose — they ARE CP437 (the wall, the club-tree, the up-arrow forest) and render single-column on the Western-monospace metrics every surface uses; only genuinely double-width runes are barred. The loader enforces it on every map glyph; the player-name/free-text sanitizer enforces the same rule (the narrow ledger), so a wide name can't shear a frame. - Re-skin: water ~ -> ≋, inn -> ⌂, healer -> ✚, dungeon mouth -> ∩, and the other adventurer -> ☻ (CP437's own player glyph). The colour field the renderer has carried unused since v0.1 now has a second consumer. - Texture variants: grass and water vary by a deterministic per-coordinate hash, rendered identically in the Python frame builder and the Watch's JS. The two are kept in lockstep by shared hash constants + an agreement test that replays the JS arithmetic and asserts it equals the Python output for every variant over a grid — not a comment-coupled copy. - Watch glow-up: a Noto Sans Mono font stack and a UTC-hour day/night tint (the Vale darkens at dusk on the lobby TV). - The curated SAFE_PALETTE is enforced author-usable: a test asserts no palette glyph collides with the reserved player markers, so AUTHORING's generated appendix can't advertise a glyph the loader would reject. - Resume is identity-preserving: an existing character resumes by exact stored name without re-validating the width rule (which governs creation only) — resume must never lock anyone out. Tests 231 -> 283; width edges (CJK/emoji/combining/fullwidth), the Python<->JS lockstep, the palette/reserved guard, and resume-vs-create all pinned and revert-verified.