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Make nameplate castbars event-driven; unthrottle target bar

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Previously every visible plate polled C_Spell.UnitCastingInfo each throttled
tick just to detect casts. Now cast state is event-driven:

- SPELL_START_OTHER (nampower) stamps a per-GUID castState cache (spellId,
  timing, channel flag from spellType); SPELL_FAILED_OTHER clears it; normal
  completion expires at endTime. GetCastInfo just reads the cache, so all
  call sites (castbar update, non-target detection, casting name-color) stop
  polling.
- plateByGuid routes events to plates in O(1) and bounds the cache to on-screen
  casters; NAME_PLATE_UNIT_ADDED seeds an already-casting unit with one poll.
- The vestigial nameplate.castUpdate flag now fires on cast start to bypass the
  throttle for an immediate bar.

With the poll gone, per-tick work is a cache read + SetValue, so the dedicated
target castbar frame now runs unthrottled (every frame) for the smoothest
sweep, and the non-target nameplates_castbar default rises 50 -> 100 FPS.

Known limits: other-unit cast pushback isn't reported by nampower, and a
mob-cancelled channel with no fail event lingers until endTime.
This commit is contained in:
Brues
2026-07-29 16:29:12 -05:00
parent af8780bb41
commit f41d5ac6d0
2 changed files with 85 additions and 16 deletions
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libs/libthrottle.lua
+1 -1
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@@ -160,7 +160,7 @@ libthrottle:SetScript("OnEvent", function()
-- Set defaults for custom fields if missing
if not _G.pfUI_throttle.nameplates_target_custom then _G.pfUI_throttle.nameplates_target_custom = "50" end
if not _G.pfUI_throttle.nameplates_custom then _G.pfUI_throttle.nameplates_custom = "10" end
if not _G.pfUI_throttle.nameplates_castbar_custom then _G.pfUI_throttle.nameplates_castbar_custom = "50" end
if not _G.pfUI_throttle.nameplates_castbar_custom then _G.pfUI_throttle.nameplates_castbar_custom = "100" end
if not _G.pfUI_throttle.nameplates_mass_custom then _G.pfUI_throttle.nameplates_mass_custom = "7" end
if not _G.pfUI_throttle.tooltip_cursor_custom then _G.pfUI_throttle.tooltip_cursor_custom = "10" end
if not _G.pfUI_throttle.chat_tab_custom then _G.pfUI_throttle.chat_tab_custom = "10" end