Visual gate against retail surfaced several fidelity gaps in the selected-object
strip; all fixed and user-confirmed. Faithful to gmToolbarUI::HandleSelectionChanged
(acclient_2013_pseudo_c.txt:198635) + RecvNotice_UpdateObjectHealth (:196213).
- UiMeter.DrawHBar: guard each slice on `id != 0` BEFORE resolve. resolve(0)
returns the 1x1 magenta placeholder with a non-zero GL handle, so the single-
image meter (caps id=0) was drawing 1px magenta caps at the bar's ends. The
3-slice vitals meter (all ids set) was unaffected. (the magenta-lines bug)
- SelectedObjectController: meter visibility is now UpdateHealth-driven (shown when
health is known for the selected guid — HasHealth at select or HealthChanged),
not shown-on-select; brief green selection flash via Tick revert; overlay floated
above the meter so the flash isn't hidden by the bar; name top-aligned into the
bar sprite's black band (NameBandHeight) with the bar below.
- GameWindow.IsHealthBarTarget: gate the health bar on the server PWD bits
BF_ATTACKABLE (0x10) | BF_PLAYER (0x8) — friendly/vendor NPCs and attackable
Doors (Misc type) are name-only; players/monsters get the bar. Replaces the
too-loose IsLiveCreatureTarget. Wired SelectedObjectController.Tick in OnUpdate.
- CombatState.HasHealth(guid): distinguishes a known health value from the 1.0
default, so a re-selected already-assessed target shows its bar immediately.
- TextureCache.GetOrUploadRenderSurface: resolve the surface's DefaultPaletteId
so paletted (P8/INDEX16) UI sprites decode instead of falling to magenta.
- ToolbarController.HiddenIds: also hide 0x100001A3 (stack-entry box) — retail
hides it in HandleSelectionChanged; it was rendering as a stray black box.
Divergence register: AP-47 (meter-visible timing) retired (now faithful); AP-46
rewritten to the BF_ATTACKABLE/BF_PLAYER gate approximation. Full suite green
(2,688 passed / 4 skipped). User-confirmed: name on top, NPC name-only, monster
bar on assess, green flash, no magenta.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Port of gmToolbarUI::HandleSelectionChanged (acclient_2013_pseudo_c.txt:198635).
When the player selects a world object the action bar's bottom strip shows the
object name + (for player/pet/attackable targets) a live Health meter; deselect
clears it. Mana (#140) + stack slider deferred.
- SelectedObjectController (new): clear-then-populate on selection change; sets
name (UiText child, VitalsController pattern), overlay state (ObjectSelected /
StackedItemSelected via UiDatElement.ActiveState), shows the health meter and
sends QueryHealth for health targets. Subscribes via a delegate seam (no
GameWindow coupling).
- GameWindow: _selectedGuid field -> SelectedGuid property + SelectionChanged
event (fires on actual change only); 3 write sites converted, reads untouched.
All selection-write paths (LMB pick, Tab/Q, despawn-clear via Tick()) run on
the render thread, so the event-driven UI mutation is single-threaded.
- WorldSession.SendQueryHealth (0x01BF) — wraps SocialActions.BuildQueryHealth.
- DatWidgetFactory.BuildMeter: handle the single-image toolbar meter shape
(back-track on the element's own DirectState, fill on one Type-3 child). The
sprites go in the TILE slot (DrawMode=Normal tiles to full bar geometry per
UIElement_Meter::DrawChildren) — a left-cap assignment would gap/clamp a
sub-140px sprite. Vitals 3-slice path unchanged.
- ToolbarController.HiddenIds: A1 (health) now owned by SelectedObjectController;
A2 (mana) + A4 (stack) stay hidden (deferred) so their dat back-tracks don't
render as stray empty bars.
Adversarial Opus review found + fixed: the mana-meter orphan (A2 left unhidden)
and the meter tile-vs-cap render bug (C1). Divergence rows AP-46 (health gate
approximation: IsLiveCreatureTarget vs IsPlayer||pet||attackable) + AP-47
(meter shown on select vs on UpdateHealth reply). Spec §5 corrected.
Build + full test suite green (2,684 passed / 4 skipped). Health meter render
fidelity (full-width fill + fraction mapping) pending the user's visual gate.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
