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Implement retained ADV History writers

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gamer147
2026-07-18 23:28:26 -04:00
parent 9a6bc38f40
commit b7ea16b54c
6 changed files with 415 additions and 9 deletions
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docs/engine-re.md
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@@ -1316,10 +1316,17 @@ rectangle fill (`0x20b`), message-window alpha (`0x131`), and retained-object pr
`0xd3/0xd4/0xd5` callback-sequence family drives the smooth scrollbar interpolation and is the main
remaining scheduler detail; omitting it would affect motion fidelity, not the backlog data model.
The port currently retains only the current `_advText` plus a diagnostic `(offset,text)` capture list.
History should therefore begin with an engine/session-owned `AdvTextHistory` service—records, logical index,
suppression, and clear lifetime—fed by the native write opcodes. The host should render a requested group;
it should not own the canonical backlog. No persistence format is required for that first slice.
The first port slice now implements an engine/session-owned `AdvTextHistory` service. `GameSession` carries
one instance across VM scene runs, while a standalone VM owns its instance for the full top-level and nested
script lifetime. The model retains the logical index, typed text/metadata/voice records, group-start flags,
layout/cursor snapshots, and font/color/effect state. Ops `0x70`, `0x71`, `0x6e`, `0xc4`, `0x1d2`, `0x1bb`,
and `0x85` feed it directly; Godot remains only a presentation host and does not own the canonical backlog.
The model intentionally has no JSON or disk serialization. `GameSession.ToJson()` continues to snapshot
only the pre-existing global banks, so landing the live backlog does not silently choose a save/profile
backend. Native numbered-save restoration remains the explicit future integration seam described above.
The next History slice can now implement generic inline arrays/value dispatch and ops `0x1d0..0x1d4` over
real retained data before adding host rendering.
The original dependency order was **Hide Window first** to establish reusable callback/coroutine input, then
Read-message Skip, then History after both the input layer and message-completion seam exist. Hide Window is