Sentry Ward

Contract

Aeye is ROC/TFT CAbilityEvilEye (parent AAsm). AIsw is an item alias whose code is Aeye, so it shares the procedure and reads its own row through abilityitem_t.code. APwt (Rune of the Watcher) uses the same code=Aeye family but is an automatically consumed power-up with a permanent Watcher Ward summon.

Rawcode	Archive	Notes
Aeye	ROC and TFT	Witch Doctor Sentry Ward
AIsw	ROC and TFT	item Sentry Ward (code=Aeye)
APwt	TFT	Rune of the Watcher — registered power-up; permanent ward

Point cast summons an invisible timed detection ward. True sight comes from the ward unit's Adt1 (CAbilityDetector, code=Adet) detect range (Rng), not from Aeye Data cells (Aeye has no DataA–I).

Authoritative Fields

Field	Meta	Stock Aeye TFT	Stock AIsw TFT	Runtime meaning
UnitID	Ward Unit Type (hwdu, shared with Ahwd)	oeye	oeye	ward unit (S_SpellUnitId)
Dur / HeroDur		600	300	ward timed life (BTLF)
BuffID		Beye	Beye	summoned-ward presentation; not required for detect
Cost		50	0

ROC omits UnitID / BuffID on both rows.

oeye UnitAbilities: Adt1,Aeth. Stock Adt1 TFT: Rng=1100, DataA=3 (detectionType). OpenWarcraft exposes a player-aware S_UnitIsDetectedByPlayer query. A Sentry Ward contributes its stored Adt1 range only to its owner and viewers receiving that owner's shared vision; the legacy S_UnitIsDetected helper remains as an aggregate compatibility query.

Data Flow

AbilityData.slk (Aeye / AIsw)
  -> UnitID, Dur
CAbilityEvilEye
  -> S_SummonAt(caster, UnitID, point, Dur)
  -> ward.summon_ability = cast rawcode; RF_HIDDEN
  -> ward.wait = Adt1 Rng (detect radius)
S_UnitIsDetectedByPlayer(unit, viewer)
  -> viewer owns/shares vision with detector
  -> target is enemy to detector and inside authored detection radius
  -> viewer-specific visibility/selection/targeting may reveal known gameplay invisibility
  -> outgoing snapshot clears RF_HIDDEN locally without changing authoritative entity state

FOW reveal while the ward itself is RF_HIDDEN is still a separate gap (invisible wards should still grant owner vision). Detection itself is no longer a global hidden-state toggle: Far Sight and passive detector abilities share the viewer-specific path, and non-invisibility RF_HIDDEN states remain hidden.

Diagnostic Workflow

build/bin/ability_audit -data 'data/Warcraft III' -raw Aeye
build/bin/ability_audit -data 'data/Warcraft III' -raw AIsw
build/bin/ability_audit -data 'data/Warcraft III' -raw Adt1

Verification

make test-wc3-engine WC3_PATTERN='wc3_spell.sentry_ward*'

Rune of the Watcher

APwt uses AB_ITEM | AB_POWERUP. On acquisition it summons the ability's UnitID at the collector's position, belonging to the collector's player. The ordinary Aeye/AIsw Dur and HeroDur timed-life rule does not apply: Blizzard's Rune of the Watcher explicitly creates a ward without a timer. The summoned ward retains summon_ability=APwt, RF_HIDDEN, and the Adt1 detection radius in wait. This reuses the normal player-specific detection logic; its model, invulnerability and ordinary sight come from the spawned unit's authored UnitData. Activation effect uses the ability's EffectArt where present; item collection reuses the common pickup sound and event lifecycle.

The existing invisible-ward owner-fog-vision gap remains independent of this rune and needs a separate test/fix. Confirm stock APwt UnitID and ability effect art with ability_audit against an installed TFT archive before claiming exact retail presentation parity.