funman300
21a81ad63c
Multi-agent pass over the store subsystem, 11 agents, findings run through three
adversarial verifiers. Full writeup in docs/plan-2026-08-05-store-subsystem.md.
THE REAL DISCARD TABLE IS RECOVERED. quick_sell() paid an invented rating tier
(600/300/150/50) that was wrong for every single card. The real table is
fcc_discardcoins in the client's own game DB, 141 rows keyed (cardtype, level, rare),
read out of the running client and verified 22/22 against live items:
value = round_half_up(rating * price / 100)
level = 3 if rating >= 75, 2 if 65..74, else 1 (0x180141e8a..0x180141ea3,
derived from rating, NOT a wire field)
cardtype = FUN_1800d8330(cardsubtypeid), decoded from its jump table and checked
across every subtype 0..599 with zero disagreements
A 94-rated gold rare is 752, not 600. A 76 rare is 608, not 150. A 55 bronze is 17,
not 50.
This also closes a disagreement nobody had noticed: the CLIENT already computes and
displays the correct value locally whenever our discardValue (atom 0xd7) is 0 or
absent. FUN_18013fe00 stores our value at item +0x38 and the guard at 0x180141025
skips the local computation when it is non-zero. So the screen has been showing the
real number while the server paid a made-up one, on every quick sell ever made.
Verified beyond what the report claimed, because a missing table row pays ZERO and
that would be a regression the old flat tier could not produce: across all 236 items
in the live profile, 230 map to cardtype 1 and 6 to cardtype 6, and NOT ONE would pay
0 coins. Table reproduces at 141 rows and the worked example lands exactly.
ZERO WIRE CHANGE, FUT_DISCARD_TABLE default off. Nothing new is sent; only the coin
figure the server credits moves. This is the patch worth defaulting on after one
in-game check, which is simply quick-selling a card and seeing the coins paid match
the value the card was already displaying.
THE GROUPING BUG IS NOT IN CARDSDLL, and the fix ranked first would have wasted a
launch. Live in the running client all three display groups own exactly the right
pack, there is exactly one copy of each pack record in 4 GiB, and nothing we send is
mis-parsed. The parsed model is correct and the Scaleform layer picks the wrong pack
when turning a tile click into a category id. displayGroupAssetId is served as 1/5/6
while the screen's category field reads 3, and group tiles carry a hardcoded
CATEGORY_ID of 0. Confirmed by direct read: ordinal 3, assetId 6, i.e. Premium, while
the last click was Gold.
The heap map that made this possible, all scoped to one pid: display-group vector
control block, 3 elements of 0x108; group record fields at +0x00 sortPriority,
+0x04 displayGroupAssetId, +0x40 a one-element pack vector; inner pack record 0x1a8
with packType at +0x38, ids at +0x70/+0xac, price at +0xa0, quantities at +0xc0..+0xd0.
extPrice SHOULD BE DELETED, not corrected. Both sub-parsers read only
externalPriceId; amount and currency are discarded. Sending the key at all creates an
"mtx" currency row that switches on a real-money price line the client can never fill
offline, which is the literal "or %1s" on every tile.
A WORRY NOBODY HAD RAISED, and I confirmed it from our own logs: the client has sent
packId 6 on every purchase it has ever made, four for four tonight and six for six
across history. We have never observed a successful buy of anything but Premium Gold.
Also settled: FUT_STORE_DISPLAYGROUP=0 is the right resting state, argued from
mechanism rather than from history; FUT_USERINFO=packs stays off because the
unopened-pack counter is client-mutable and the flag ladder silently drops squadList;
POST /user is a latent hard freeze that has never fired because the client never
issues that POST.
Honest coverage: the ActionScript layer is unread by everyone and every remaining
store mystery lives there.
Live: 439 contract checks pass, market suite passes, both flags off.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
101 lines
3.6 KiB
Python
101 lines
3.6 KiB
Python
"""DIMENSION 4 (duplicates), pass 1.
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HYPOTHESIS: duplicateItemIdList (atom 0xec, element deser 0x180138e10, 0x20-byte
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records) is consumed by (a) the CreatePack deser 0x180162880 and (b) the shared
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IS-list body 0x18013e7f0. In CreatePack the only fields read from each record are
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+0x00 (itemId) and +0x10 (duplicateItemId); the loans fields look dead there.
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We want every caller and the exact per-caller consumption.
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CONTROL: FUN_180138e10 must appear as a called-function of every caller we claim,
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and we also enumerate xrefs by the reference manager (not by grepping text), so
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"absent" verdicts are not derived from a text search. Additionally we print
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len(src) for every decompile and state FULL/TRUNCATED.
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"""
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import traceback
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OUT = "/tmp/claude-1000/-home-alex-Documents-OpenFUT/8e521ca1-ca3e-4138-bb96-df1744dd1d30/scratchpad/store/dup1_out.txt"
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def w(fh, s=""):
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fh.write(str(s) + "\n")
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try:
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fh = open(OUT, "w")
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w(fh, "=" * 70)
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w(fh, "A. xrefs_to(0x180138e10) -- the duplicateItemIdList element deser")
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w(fh, "=" * 70)
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for frm, typ, fn, ent in xrefs_to(0x180138e10):
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w(fh, " from %#x %-14s in %s @ %#x" % (frm, typ, fn, ent))
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w(fh, "")
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w(fh, "=" * 70)
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w(fh, "B. xrefs to the ATOM constant 0xec is meaningless (too common);")
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w(fh, " instead: callers of each caller, to place the consumers.")
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w(fh, "=" * 70)
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callers_of_deser = sorted(set(e for _, _, _, e in xrefs_to(0x180138e10) if e))
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for c in callers_of_deser:
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w(fh, "-- callers of %#x (%s):" % (c, fname(c) if callable(globals().get("fname")) else "?"))
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for frm, typ, fn, ent in xrefs_to(c):
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w(fh, " %#x %s in %s @ %#x" % (frm, typ, fn, ent))
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w(fh, "")
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w(fh, "=" * 70)
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w(fh, "C. FULL decompile: IS-list shared body 0x18013e7f0")
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w(fh, "=" * 70)
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s = dec(0x18013E7F0)
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w(fh, "// len(src)=%d FULL (printed in its entirety, no truncation)" % len(s))
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w(fh, s)
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w(fh, "")
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w(fh, "=" * 70)
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w(fh, "D. FULL decompile of every OTHER caller found in A")
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w(fh, "=" * 70)
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for c in callers_of_deser:
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if c in (0x18013E7F0, 0x180162880):
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w(fh, "// %#x printed elsewhere / already known" % c)
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continue
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s = dec(c)
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w(fh, "---- %#x len(src)=%d FULL ----" % (c, len(s)))
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w(fh, s)
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w(fh, "")
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w(fh, "=" * 70)
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w(fh, "E. the item-model singleton FUN_18011a830 and its vtable slot 0xa08")
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w(fh, " (CreatePack reaches the item via node+0x10 which this slot sets)")
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w(fh, "=" * 70)
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s = dec(0x18011A830)
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w(fh, "// FUN_18011a830 len(src)=%d FULL" % len(s))
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w(fh, s)
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w(fh, "")
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w(fh, "=" * 70)
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w(fh, "F. strings containing dup/Dup/DUP/loan/Loan/LOAN/swap/Swap/SWAP in rdata")
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w(fh, "=" * 70)
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for pat in (b"uplicate", b"UPLICATE", b"oanItem", b"LOAN", b"Loan", b"SWAP", b"Swap"):
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hits = find_all(pat, blocks=(".rdata", ".data", ".text"))
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w(fh, "-- pattern %r : %d hits" % (pat, len(hits)))
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seen = set()
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for h in hits[:400]:
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# walk back to string start
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st = h
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for _ in range(120):
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try:
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b = mem.getByte(addr(st - 1)) & 0xFF
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except Exception:
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break
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if b < 0x20 or b > 0x7E:
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break
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st -= 1
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if st in seen:
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continue
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seen.add(st)
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txt = rd_str(st, 160)
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xr = xrefs_to(st)
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w(fh, " %#x %-60r xrefs=%d %s" % (st, txt, len(xr),
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",".join("%#x/%s" % (e, fn) for _, _, fn, e in xr[:6])))
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fh.close()
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print("WROTE", OUT)
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except Exception:
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traceback.print_exc()
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