2d32051cc0
Behavior-identical; 231 BattleNode tests green with ZERO test changes. The 10 handler arms no longer switch on BattleType: - 4 Bot arms gate on the new FrameDispatchContext.OpponentIsAckOnly (Other is not IHasHandshakePhase) — the participant property the audit asked for. - 6 relay arms drop the Type == Pvp guard; it was redundant with BothSidesAfterReady() (only a two-real-player session has both handshake phases). Its doc now records that. - FrameDispatchContext.Type removed (+ the Type = Type in BuildContext). BattleSession.Type stays for the session-level drop cascade. Zero test churn because the stubs already encode the split: FakeRealParticipant/ProbeParticipant implement IHasHandshakePhase, the bot stub FakeParticipant doesn't, and NewBotSession uses it as the opponent. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
SVSim.BattleNode
Socket.IO node-server emulation for in-battle real-time traffic — the second of prod's 4-server
topology. Handles Matched / BattleStart / Deal / per-action PlayActions / Echo /
TurnEnd between a client and a server-side opponent, for TK2 PvP and AI rank battles.
Documentation lives in the outer repo
This project's canonical reference is a single hub doc in the outer SVSim repo (this directory is an inner git repo, so the doc isn't tracked alongside the code):
→ docs/battle-node.md (from the SVSim root) — architecture, the dispatch matrix by battle
type, connect handshake + crypto, BattleFinish wire-result semantics, SIO/EIO event coverage,
reliability (pubSeq/playSeq/Gungnir), wire-format gotchas, where-to-extend, the manual smoke
walkthrough, and the consolidated open-items list.
Relative path from here: ../../../docs/battle-node.md.
Detailed per-URI wire shapes are in docs/api-spec/in-battle/; the hub links into them.
Keep docs/battle-node.md updated in the same change whenever you alter node behavior.