The second decomp round (flood bookkeeping/propagation, view-clip
support, landscape visibility) is archived Ghidra-arbitrated - it caught
a load-bearing BN inversion (InsCellTodoList pops NEAREST-first, which
is what makes the draw list far-to-near) and three more traps (the 192m
elided constant, the min/max double positional swap, the copy_view
cross order - the walk doc section 6 is corrected). WalkVisibilityMath
ports get_pt_limit @0x0054b840, get_clip_height @0x0054cff0,
corner/block_plane_check @0x0054b930/@0x0054d060, block_check
@0x0054dc50, and viewconeCheck @0x0054c250 with retail boundary
semantics (strict cull, inclusive partial, touch-out=Outside /
touch-in=EntirelyInside) under 23 focused tests.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
LandWalkOrder ports LScape::get_block_order @0x00504c50 (near-to-far ring
list, walked backwards by LScape::draw), CLandBlock::calc_sq_draw_order
@0x0052f4a0 (cell array filled backwards from the closest cell),
LandDefs::get_dir @0x005a9aa0, and the 9-case closest-cell direction
switch. The shared 8-slot ring coefficient tables were byte-decoded from
the PDB-paired binary (block VA 0x0081cc6c.., cell VA 0x0081df88.. -
identical sets); the intra-ring visit order is preserved exactly because
it decides draw order between equidistant blocks and the oracle traces
pin it. Thirty focused tests cover coverage/ordering invariants, the
hand-expanded ring-1 pattern, and the direction/closest-cell contracts.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
WalkOracleTrace parses the FW0 retail traces (frames of LS/BLD/DI/DC
events, truncated detach frame dropped) and loads fixtures from the
research directory. Nineteen tests pin the load-bearing shapes: the far
building drawn every terrace-edge frame, the cathedral roster cull, the
stable doorway root, the one-frame walkout handover, camera-cell rooting
(porch-cam), the foundry landscape drop, and bit-identical stationary
frames. FW1 conformance builds on these.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
