route and frontier ask for the grid once per plan and fall back to the window
when there is none. With it: one plan crosses a whole map, GO WARP / GO OUT /
GO ROUTE route to their warp or connection tile rather than to the nearest tile
of an edge that reads Unknown, a tile-pair wall is planned around instead of
being learned by walking into it, and the frontier is the nearest unstood
walkable tile anywhere on the map instead of the nearest one on screen.
The walkable predicate answered for the ten-by-nine screen window and Unknown
everywhere else. MapGrid is the same rule over every tile of the loaded map:
block ids out of wOverworldMap, a blocks-to-tiles read of the tileset header s
blockset through the new bank-aware ROM read, the tileset s collision list as
before, and the TilePairCollisionsLand values as directed walls both ways.
The reader checks itself before it answers: the decode is compared against the
window predicate over the player s own neighbourhood, and a frame where the
window can answer for none of it -- a battle, a text box, a frame mid-warp -- is
refused, because wOverworldMap shares its bytes with the picture buffer. Every
refusal is named (GridRefusal) and leaves the window predicate in charge.
Cached per map id and size, so a map is decoded once on arrival rather than once
per question, and owned beside the session ledgers: never checkpointed.
MemoryReader::read8 reads the CPU bus, where banks 1 and up are whichever bank
the cartridge last switched to, so a table in another bank could only be read by
writing the mapper register -- and the joypad is the only write this workspace
makes into a running game. read_rom takes a bank and a CPU address and reads the
cartridge image the process already holds instead. Defaulted to None, so every
reader without a cartridge behind it narrows rather than guesses.
A ROM-gated run from the checkpoint the stream stalled on, gated on its
own variable because the two checkpoint tests beside it assert the map
their envelope is on and one envelope cannot be both.
What it holds: the objective is Pewter City, the road there is on the pad,
BACK is never on a battle pad with no list open, no ball is thrown at a
species the party holds, the fly gets turns, a move or a ball is chosen,
and a battle ends. Which move and which way it walks are the fly's, so
they are reported rather than asserted -- including the forest's north
gate, which this run does not reach.
Two traps from the rung-9 forest checkpoint, both section 12.2's rule: a
macro that completes without moving because its precondition is already
satisfied where the fly stands.
BACK was dealt by the between-turns row, which section 13.1 gave NEXT and
BACK for the sake of the battle bag -- the bag reads as nobody's turn, so
it lands there -- and which is also every frame of battle text. With
nothing open there is nothing to back out of, so the press completes in
fifteen frames on the tile it started on: 163 of 959 macro starts in
twenty brain minutes from the checkpoint, plus twelve more on a move list
whose cursor the seam cannot place. The row is now the sub-state's: BACK
with the bag open, NEXT alone otherwise. The move list and the party list
keep it, and the top-level menu never had it.
THROW BALL gains a fourth fact: the species on the other side is not one
the party already holds. The party is the caught set, because it is the
cartridge's own lifetime record in the same internal numbering the enemy
is read in; wPokedexOwned is by Pokedex number and the table that converts
one to the other is in a ROM bank this crate cannot read. An enemy the
seam cannot place leaves the button where it was.
RUN is unchanged. Its blocked outcomes are the script and not the
cartridge: a cursor macro started as the menu closes waits out CURSOR_WAIT
pressing nothing (mean 184 frames over ten starts), which is audit row 19.
The decoder, the reward catalog, the adapter version and the compatibility
string are untouched: --print-compatibility is byte-identical at 648 bytes.
resolve_wram.py is a second reading of the disassembly beside gen_symbols.py:
it walks ram/wram.asm with a cursor that is only ever live while anchored on an
address symbols.rs already pins, re-derives 40 of the 63 it carries with no
disagreement, and emits an address only when a pinned one after it agrees too.
wOverworldMap, wCurMapTileset, wTilesetBank and wTilesetBlocksPtr come out of
that pass; no address is hand-written and nothing else in the table moves.
A scene histogram says "battle" and a battle deals five different pads
(docs/design/macros.md 12.6, 13.1), so a loop inside one of them is
invisible in the tables the hunt already prints. Three more: frames per
sub-state, every macro channel ever bound in each one, and the macro
starts by the sub-state they started on.
