Codexandclaude[bot] e758c3d9fb fix: quantise the light aperture amount of moving covers (#366) ...

A gate or door bound to a position-reporting cover fed current_position
into the light-barrier signature at toFixed(3) precision: every percent of
movement produced a new fingerprint, a full physicalBodyParts recompute
and a recut — up to ~100 heavy passes per gate cycle, plus LRU churn.

The light pipeline now consumes one quantised amount
(OPENING_LIGHT_AMOUNT_QUANTUM = 0.05, exact 0 and 1 nodes) at the single
point that feeds BOTH the signature and the cut geometry, so the cache key
and the drawn aperture agree by construction and a full sweep costs at
most 21 recomputes. The door LEAF animation stays smooth — _openingAmt is
quantised only for the light pipeline, nowhere else. Binary contact doors
are byte-identical to the previous behaviour (pinned by unit).

Assumption recorded in the spec: the 5% visual step of the light cut is
indistinguishable on real plans; if field impressions disagree, the
quantum is a one-constant change (0.02 => <=51 recomputes) or the decision
falls back to a debounce. LIGHT.md §Caching documents the grid.

Issue: #366
User-Visible: yes

2026-08-29 08:15:51 +00:00

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