# NAMEFILT.HPP — reconstruction notes

**Status: struct + Initialize RECONSTRUCTED (compile-verified). Helper 3/3 of the
Mech embedded helpers ([[MECH-LAYOUT]] step 1) — helpers phase COMPLETE.**

`NameFilter` — the Mech's `mechNameFilter` (@0x36c). A small fixed-size
debounce/hysteresis record the Mech ctor initialises. Absent from the 4.10
archive; BT411 mis-proxied it as a no-op running-average (`ReconFiltered`).

## Evidence

`Initialize()` decomp `FUN_00435a7c` (BT411 reference/decomp part_004.c) sets a
10-word (0x28 byte) object: `[2]=1`, `[8]=[9]=0xffffffff` (invalid ids), all
other words 0. No allocation — a fixed inline struct (NOT AverageOf, which owns a
heap array). Reconstructed to reproduce those writes exactly.

## Known vs unknown

- **Known (from the binary):** the layout size (0x28) and the exact Initialize()
  values.
- **Unknown:** the field SEMANTICS. The only caller in the reconstructed mech
  family is `Initialize()` (ctor); the reader is presumably the HUD subsystem
  (not yet reconstructed). Member names (value0/1, count, sample0..4,
  candidateID, confirmedID) are best-effort from the init pattern (count=1, two
  −1 ids) and will be refined when the HUD reader is reconstructed. Semantics do
  not affect the build — only the size + init values matter for the Mech layout
  and ctor.

## Placement

1995 filename/location unknown (decomp-only). Filed as BT/NAMEFILT.HPP,
header-only (Initialize inlined — functionally identical to the out-of-line
binary; no new .cpp / lib member needed).