Splits MotionCommandResolver's single ACE-modern lookup into an
IMotionCommandCatalog seam with two implementations:
- AceModernCommandCatalog (runtime default): built cleanly from the
DatReaderWriter MotionCommand enum (mirrors ACE + local DAT MotionTables)
with a documented class-priority tiebreak. The old blind 0x016E-0x0197
per-range override is DELETED — verified the ACE matrix (LifestoneRecall
0x0153 to 0x10000153, MarketplaceRecall 0x0166, AllegianceHometownRecall
0x0171, OffhandSlashHigh 0x0173) resolves correctly straight from the enum
with no override. Stale shift-start comment corrected to SnowAngelState
(0x43000115 to 0x43000118), not AllegianceHometownRecall.
- Retail2013CommandCatalog (conformance/reference): full verbatim extraction
of command_ids[0x198] at 0x007c73e8 (acclient_2013_pseudo_c.txt:1017259-1017667),
direct wire-low to full index lookup. 408 entries, anchors verified against
source ([0x150]=0x10000150, [0x153]=0x09000153, [0x197]=0x10000197).
MotionCommandResolver.ReconstructFullCommand stays a static facade delegating
to an AceModern singleton — all ~10 runtime callers unchanged.
Removing the override exposed a pre-existing bug: CombatAnimationPlanner's
late-combat command block uses 2013 numbering, not ACE/DRW. Corrected the one
catalog test assertion pinned to the override's output (wire 0x0170 to
0x09000170 IssueSlashCommand, its true DRW identity) and filed the planner bug
as #159 rather than silently patching out-of-scope code.
Tests: +catalog matrices (ACE/2013), class-priority collisions, boundary
cases, real-DAT availability (gap-doc hit counts reproduced). Build + full
suite green (Core.Tests 1718, no regressions).
Spec: docs/superpowers/specs/2026-06-30-movement-wire-parity-design.md (1)
Research: docs/research/2026-06-26-ace-vs-2013-motion-command-gap.md
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
UpdateMotion's InterpretedMotionState payload includes not just
ForwardCommand but a whole Commands[] list of MotionItem entries — each
carrying an Action (attack, portal, skill use), Modifier (jump,
stop-turn), or ChatEmote (Wave, BowDeep, Laugh) that should overlay the
current cycle. The old parser stopped reading after ForwardSpeed, so
emotes/attacks/deaths never reached the sequencer and NPCs just sat in
their idle cycle.
Three parts:
1. New MotionItem wire record in ServerMotionState — carries Command
(u16), PackedSequence (u16 with IsAutonomous bit + 15-bit stamp),
and Speed (f32). Mirrors ACE Network/Motion/MotionItem.cs.
2. Both UpdateMotion.TryParse and CreateObject.TryParseMovementData
now read the full InterpretedMotionState: all 7 flag fields
(CurrentStyle, ForwardCommand, SidestepCommand, TurnCommand,
ForwardSpeed, SidestepSpeed, TurnSpeed) plus the numCommands ×
MotionItem tail. The packed u32 encodes flags in low 7 bits and
command count in bits 7+ (see ACE InterpretedMotionState.cs:131).
3. New MotionCommandResolver — reconstructs the 32-bit MotionCommand
class byte from a 16-bit wire value via a reflection-built lookup
of DatReaderWriter.Enums.MotionCommand. Server serializes as u16
(ACE InterpretedMotionState.cs:139) and we need the class to route:
- 0x10xxxxxx Action / 0x20xxxxxx Modifier / 0x12,0x13 ChatEmote →
PlayAction (resolves from Modifiers or Links dict, overlays on
current cycle)
- 0x40xxxxxx SubState → SetCycle (cycle change)
4. OnLiveMotionUpdated in GameWindow dispatches each command:
- SubState class (0x40xxx) → SetCycle (treated same as
ForwardCommand)
- Action/Modifier/ChatEmote → PlayAction — the link animation
plays once then drops back to the current cycle naturally
(matches retail's action-queue pattern in CMotionInterp
DoInterpretedMotion, decompile FUN_00528F70).
Result: NPCs now animate attacks, waves, bows, death throes, and other
one-shots that ACE broadcasts via the Commands list rather than the
primary ForwardCommand field. Combined with the dead-reckoning + speed-
scaling from the prior commits, remote characters look visually correct
during the full motion spectrum (idle → walk → run → attack → death).
Tests: 2 new UpdateMotion wire-format tests (ForwardSpeed parse, full
Wave command list parse) + 19 new MotionCommandResolver reconstruction
tests covering SubState, Action, and ChatEmote classes. 654 tests green
(was 633).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
