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feat(ui): ChatPanel — second devtools panel proves the abstraction

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Adds a second real panel behind ACDREAM_DEVTOOLS=1. Shows the tail
of ChatLog (last 20 entries by default) formatted per ChatKind:

  "Caith: hello"                  — LocalSpeech
  "Regal says distantly: hi"      — RangedSpeech
  "[ch 7] Caith: g'day"           — Channel
  "[Tell] Regal: psst"            — Tell
  "[System] Your spell fizzled!"  — System
  "[Popup] A door stands..."      — Popup

Why now: proves the D.2a IPanelRenderer contract survives beyond a
single progress-bar panel. ChatPanel exercises Text() + Separator()
on a variable-length list where VitalsPanel was a fixed three-widget
layout. No renderer primitives needed to grow — the contract held,
which is the whole point of the abstraction layer.

Files:
  - src/AcDream.UI.Abstractions/Panels/Chat/ChatVM.cs (new)
      Snapshots ChatLog tail every frame. Cheap at default 500-entry
      cap. Per-kind formatting lives here (not in the panel) so the
      D.2b retail-look swap inherits plain-text fallbacks.
  - src/AcDream.UI.Abstractions/Panels/Chat/ChatPanel.cs (new)
      IPanel implementation. Separator + N Text lines. "(no messages
      yet)" fallback when the log is empty.
  - src/AcDream.App/Rendering/GameWindow.cs
      Registers the ChatPanel alongside VitalsPanel in the devtools
      init block. Uses the existing GameWindow.Chat field already
      fed by H.1's wire layer + GameEventWiring.WireAll.
  - tests/AcDream.UI.Abstractions.Tests/ChatVMTests.cs (new)
      12 tests covering tail selection, display-limit bounds, every
      ChatKind's formatting, null-log + zero-limit guards, no stale
      caching across appends.

Also fixes one stale "Hexa.NET.ImGui" mention in VitalsPanel's xmldoc
(pivoted to ImGui.NET in 55aaca7; doc needed a trailing update).

Build: 0 warnings, 0 errors. Tests: 23 UI.Abstractions (up from 11,
all Core + Core.Net still green), 0 failures.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Erik 2026-04-25 00:48:07 +02:00
parent 4d1b8b8aee
commit 9faf9d7e3a
5 changed files with 273 additions and 2 deletions
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2
src/AcDream.UI.Abstractions/Panels/Vitals/VitalsPanel.cs
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@ -3,7 +3,7 @@ namespace AcDream.UI.Abstractions.Panels.Vitals;
/// <summary>
/// First real UI panel — shows the local player's vitals as progress bars.
/// Backend-agnostic; renders exclusively through <see cref="IPanelRenderer"/>
/// so the same file works under Hexa.NET.ImGui (D.2a) and the future custom
/// so the same file works under ImGui.NET (D.2a) and the future custom
/// retail-look toolkit (D.2b).
///
/// <para>