BuxbrewResist — architecture
BuxbrewResist.lua keeps a school map and reads the second return value of UnitResistance as total resistance. For nonnegative values, computeAverageResist clamps R / (5 * max(level, 20)) * 0.75 to 0–0.75. buildBuckets samples eleven points from 0 to 1 with triangular weights, normalizes them and groups into 0/25/50/75/100% outcomes. expectedReduction weights those buckets; the result need not equal the initial clamped value.
Negative resistance uses R / (5 * max(playerLevel, 20)), without the positive formula's 0.75 multiplier; it is vulnerability, not a negative probability. totalReduction combines assumed spell misses using miss + (1 - miss) * average. Same-level miss is 4%; the level+3 example uses 1%. Attacker hit, penetration and spell-specific flags are unknown. The binary rejection explanation uses a separate capped additive reference formula; it must not be substituted for the direct-damage total.
Tooltips hook MagicResFrame1..5 while preserving the prior OnEnter handler and legacy global this. School identity comes from frame:GetID(), not display order. Ownership and missing values are checked. A per-frame flag avoids repeated hooks; installation runs immediately and on ADDON_LOADED/PLAYER_LOGIN. Values are read on each hover.
Slash parsing trims/lowercases input and compares literal prefixes, rejects ambiguous matches and routes Physical/Holy to separate summaries. TOC version is 1.2 and declares BuxResDB, but the inspected Lua does not use that DB. Screenshots are examples, not proof of current client operation.
Evidence and status
Reviewed on 2026-10-26 against main at 0691901. Current Lua, TOC, README and dated commit history were inspected. Source describes implementation; it does not establish successful operation. Historical intent is reconstructed only where labeled. No in-client test or automated test was executed during this documentation pass.
Preserved earlier documentation
The following earlier record is retained verbatim. Statements about unavailable history or pending verification describe that earlier snapshot; the dated evidence above supplements it.
BuxbrewResist — architecture
Author: Babuni.dev
BuxbrewResist.lua updates resistance tooltips and /buxres chat reports; README includes calculation guidance and screenshots; tests/test_tooltips.py is present.
Source: README.md, addon manifest, named Lua code and any named test files. This is a static implementation reading.
Document information
Project author and creative direction: Babuni.dev