RaiseAttribute, RaiseVital, and RaiseSkill each wrote a 64-bit xpSpent,
producing a 24-byte action where the server expects 20. ACE's
GameActionRaiseAttribute and its Vital and Skill siblings read
message.Payload.ReadUInt32(); holtburger's RaiseAttributeData declares
xp_spent: u32 and advances the offset by four. Both oracles agree, and the
four extra bytes were tail the server never reads.
These three are live-wired, from the character sheet through the command
router to SendRaiseAttribute, so this was shipping on every attribute, vital,
and skill raise. It has not caused a visible failure because ACE reads the low
dword and stops, and a single raise cost has never approached the dword
ceiling. That is luck about value ranges, not correctness about layout.
Worth noting the shape of the miss: the sibling builder BuildTrainSkill had
already been corrected to a 20-byte, 32-bit credits field, and its test is even
named U32CreditsNotU64. The same class of bug was found and fixed once in this
file and the other three cases were left behind.
The parameter stays ulong because the cost comes from 64-bit server XP tables
several layers up in the App and Runtime command chain; narrowing that end to
end is a separate change and is filed in the audit's open questions. Nothing is
lost at the wire: a cost that does not fit in a dword was never expressible
here.
The existing test asserted the 24-byte shape and is corrected, joined by a
theory that sweeps zero, one, a realistic cost, and uint.MaxValue across both
remaining builders.
Core.Net tests go 655 to 659.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Outbound GameActions for XP-spending + combat-mode-change. These
complete the wire surface for the character-sheet UI: the player
clicks "spend XP on Strength," the panel calls BuildRaiseAttribute,
the session sends it, the server responds with updated PlayerDescription
or PrivateUpdateAttribute GameEvents.
Wire layer:
- BuildRaiseAttribute (0x0045): attrId u32, xpSpent u64.
- BuildRaiseVital (0x0044): vitalId u32, xpSpent u64.
- BuildRaiseSkill (0x0046): skillId u32, xpSpent u64.
- BuildTrainSkill (0x0047): skillId u32, credits u32 (note: credits
is u32 here, NOT u64 like the xpSpent variants).
- BuildChangeCombatMode (0x0053): mode enum as u32
(Undef=0, NonCombat=1, Melee=2, Missile=3, Magic=4, Peaceful=5).
Tests (5 new): byte-exact encoding of each, including the Train/
Raise size difference due to u32 vs u64 payloads.
Build green, 621 tests pass (up from 616).
Ref: r08 §3 rows 0x0044 / 0x0045 / 0x0046 / 0x0047 / 0x0053.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
