Combat API (Retail — Patch 12.0.0)

Comprehensive reference for all combat-related APIs in WoW Retail. Critical: The combat log system was fundamentally changed in 12.0.0. COMBAT_LOG_EVENT_UNFILTERED is no longer available to addons.

Source: https://warcraft.wiki.gg/wiki/World_of_Warcraft_API Current as of: Patch 12.0.0 (Build 65655) — January 28, 2026 Scope: Retail only.

CRITICAL: Combat Log Changes in 12.0.0

COMBAT_LOG_EVENT_UNFILTERED (CLEU) is NO LONGER available to addons.

• CombatLogGetCurrentEventInfo() is unavailable to tainted (addon) code
• The old COMBAT_LOG_EVENT event is also unavailable
• Combat log chat tab messages are now KStrings (unparseable escape sequences)
• Addons like damage meters must use C_DamageMeter or the built-in system
• A new COMBAT_LOG_EVENT_INTERNAL_UNFILTERED exists but is restricted to Blizzard code

New Combat Log Events (Addon-Facing)

Event	Description
COMBAT_LOG_MESSAGE	Formatted combat log messages (display text only)
COMBAT_LOG_ENTRIES_CLEARED	Combat log entries cleared
COMBAT_LOG_APPLY_FILTER_SETTINGS	Filter settings changed
COMBAT_LOG_REFILTER_ENTRIES	Entries need refiltering
COMBAT_LOG_MESSAGE_LIMIT_CHANGED	Message limit changed

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Scope

This skill covers:

• Combat Log — New 12.0.0 combat log system, COMBAT_LOG_MESSAGE
• C_DamageMeter — Built-in damage/healing meter system
• Threat — UnitThreatSituation, UnitDetailedThreatSituation
• C_LossOfControl — Loss of control tracking
• C_CombatText — Floating combat text
• C_CombatAudioAlert — Combat audio alert system (accessibility)
• C_Secrets / C_CurveUtil / C_DurationUtil — Secret value handling for combat data
• Encounter Events — ENCOUNTER_STATE_CHANGED, ENCOUNTER_WARNING, timeline events
• Spectator/Commentator — C_Commentator for spectator mode

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C_DamageMeter — Built-in Damage Meter

New in 12.0.0. Provides official damage/healing meter data without needing combat log parsing.

Functions

Function	Returns	Description
C_DamageMeter.GetCurrentSessionID()	sessionID	Current combat session
C_DamageMeter.GetSessions()	sessions	All available sessions
C_DamageMeter.GetSessionInfo(sessionID)	sessionInfo	Session details
C_DamageMeter.GetPlayerData(sessionID, unitGUID)	playerData	Player's damage/healing
C_DamageMeter.GetPartyData(sessionID)	partyData	All party/raid data
C_DamageMeter.ResetSessions()	—	Clear all sessions

Events

Event	Description
DAMAGE_METER_COMBAT_SESSION_UPDATED	Session data updated
DAMAGE_METER_CURRENT_SESSION_UPDATED	Current session changed
DAMAGE_METER_RESET	Sessions cleared

Pattern: Reading Damage Meter Data

local frame = CreateFrame("Frame")
frame:RegisterEvent("DAMAGE_METER_COMBAT_SESSION_UPDATED")
frame:SetScript("OnEvent", function(self, event)
    local sessionID = C_DamageMeter.GetCurrentSessionID()
    if sessionID then
        local partyData = C_DamageMeter.GetPartyData(sessionID)
        -- partyData contains per-player damage/healing totals
    end
end)

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Threat API

Threat Functions

Function	Returns	Description
UnitThreatSituation(unit [, target])	status	Threat status (0-3)
UnitDetailedThreatSituation(unit, target)	isTanking, status, scaledPercent, rawPercent, threatValue	Detailed threat info
UnitThreatPercentageOfLead(unit, target)	percent	Threat lead percentage

Threat Status Values

Value	Meaning
0	Not on threat table
1	On threat table, not tanking, not highest
2	On threat table, not tanking, highest
3	Tanking (highest threat with aggro)
nil	Unit doesn't exist or has no threat table

Note: In 12.0.0 instances, threat values for non-player units may be secret values. Pass them directly to UI widgets.

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C_LossOfControl

Tracks crowd control effects on the player.

Function	Returns	Description
C_LossOfControl.GetActiveLossOfControlData(index)	data	Active CC effect data
C_LossOfControl.GetActiveLossOfControlDataByUnit(unit, index)	data	CC data for unit
C_LossOfControl.GetActiveLossOfControlDataCount()	count	Number of active CC effects
C_LossOfControl.GetActiveLossOfControlDataCountByUnit(unit)	count	CC count for unit

Loss of Control Data Fields

• locType — Type of CC (STUN, FEAR, SILENCE, etc.)
• spellID — Spell causing the CC
• displayText — Localized display text
• iconTexture — Spell icon
• startTime — When CC started
• timeRemaining — Duration remaining (may be DurationObject in 12.0.0)
• duration — Total duration
• lockoutSchool — School lockout (for SCHOOL_INTERRUPT type)
• priority — Display priority

Events

Event	Description
LOSS_OF_CONTROL_ADDED	New CC effect applied
LOSS_OF_CONTROL_UPDATE	CC effect updated

---

C_CombatText — Floating Combat Text

Function	Returns	Description
C_CombatText.IsCombatTextEnabled()	enabled	FCT enabled?

Combat Text CVars

CVar	Description
enableFloatingCombatText	Enable/disable FCT
floatingCombatTextCombatDamage	Show damage
floatingCombatTextCombatHealing	Show healing
floatingCombatTextCombatDamageStyle	Damage display style

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C_CombatAudioAlert — Combat Audio Alerts

New accessibility system providing audio cues for combat events. Replaces some functionality that previously required combat log parsing.

Function	Returns	Description
C_CombatAudioAlert.IsEnabled()	enabled	Audio alerts enabled?
C_CombatAudioAlert.SetEnabled(enabled)	—	Enable/disable

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Secret Value Handling for Combat Data

C_Secrets — Secret Predicates

Function	Returns	Description
C_Secrets.ShouldUnitHealthBeSecret(unit)	isSecret	Is health secret for this unit?
C_Secrets.ShouldUnitPowerBeSecret(unit [, powerType])	isSecret	Is power secret?
C_Secrets.ShouldUnitPowerMaxBeSecret(unit [, powerType])	isSecret	Is max power secret?
C_Secrets.ShouldUnitSpellCastBeSecret(unit, spellIdentifier)	isSpellCastSecret	Is spell cast secret?
C_Secrets.ShouldUnitSpellCastingBeSecret(unit)	isSpellCastingSecret	Is all casting secret?

C_CurveUtil — Curves for Secret Values

Since addons cannot do math on secret values, Curves allow mapping secret numbers to visual output.

Function	Returns	Description
C_CurveUtil.CreateCurve()	curveObject	Create a numeric curve
C_CurveUtil.CreateColorCurve()	colorCurveObject	Create a color curve

Pattern: Health-to-Color Without Inspecting Value

-- Create a color curve: green at 100% → red at 0%
local colorCurve = C_CurveUtil.CreateColorCurve()
-- Configure curve points (green → yellow → red)

local healthBar = CreateFrame("StatusBar", nil, parent)
local hp = UnitHealth(unit)         -- SECRET in instances
local maxHp = UnitHealthMax(unit)   -- SECRET in instances
healthBar:SetMinMaxValues(0, maxHp) -- widgets accept secrets
healthBar:SetValue(hp)              -- widgets accept secrets
-- Color is set by curve without addon seeing the actual number

C_DurationUtil — Duration Objects

Function	Returns	Description
C_DurationUtil.CreateDuration()	durationObject	Create a duration object

-- Use DurationObject for cooldown display
local cooldown = CreateFrame("Cooldown", nil, parent, "CooldownFrameTemplate")
local duration = C_DurationUtil.CreateDuration()
cooldown:SetCooldownFromDurationObject(duration)

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Encounter Events

New in 12.0.0, these replace addon combat log parsing for encounter state tracking.

Event	Description
ENCOUNTER_STATE_CHANGED	Encounter state changed (pull, wipe, kill)
ENCOUNTER_WARNING	Built-in encounter warning system
ENCOUNTER_TIMELINE_EVENT_START	Timeline event started
ENCOUNTER_TIMELINE_EVENT_UPDATE	Timeline event updated
ENCOUNTER_TIMELINE_EVENT_END	Timeline event ended

Other Combat Events

Event	Description
PLAYER_REGEN_DISABLED	Entering combat
PLAYER_REGEN_ENABLED	Leaving combat
PLAYER_ENTER_COMBAT	Player starts auto-attack
PLAYER_LEAVE_COMBAT	Player stops auto-attack
UNIT_COMBAT	Unit took/dealt damage or healing
UNIT_THREAT_SITUATION_UPDATE	Threat status changed
UNIT_THREAT_LIST_UPDATE	Threat table updated
PLAYER_DEAD	Player died
PLAYER_ALIVE	Player released spirit
PLAYER_UNGHOST	Player resurrected

---

Commentator / Spectator API

C_Commentator provides spectator mode functionality for esports viewing.

Key Functions

Function	Returns	Description
C_Commentator.IsSpectating()	isSpectating	In spectator mode?
C_Commentator.GetAllPlayerData(teamIndex)	playerData	All player data for team
C_Commentator.GetPlayerData(teamIndex, playerIndex)	data	Specific player data
C_Commentator.GetTeamColorAndName(teamIndex)	color, name	Team info
C_Commentator.GetMatchDuration()	duration	Match elapsed time
C_Commentator.StartWargame(...)	—	Start a wargame
C_Commentator.UpdatePlayerInfo()	—	Refresh player data

---

Common Patterns

Check Combat State

local function IsInCombat()
    return UnitAffectingCombat("player")
end

-- Or use the lockdown check for secure frame operations
if InCombatLockdown() then
    print("In combat lockdown — restricted operations blocked")
end

Threat-Based Nameplate Coloring

-- Note: In 12.0.0 instances, threat values may be secret
local status = UnitThreatSituation("player", "target")
if not issecretvalue(status) then
    if status == 3 then
        -- Tanking — show red
    elseif status == 2 then
        -- Pulling aggro — show orange
    else
        -- Safe — show green
    end
end

Loss of Control Display

local frame = CreateFrame("Frame")
frame:RegisterEvent("LOSS_OF_CONTROL_ADDED")
frame:RegisterEvent("LOSS_OF_CONTROL_UPDATE")
frame:SetScript("OnEvent", function()
    local count = C_LossOfControl.GetActiveLossOfControlDataCount()
    for i = 1, count do
        local data = C_LossOfControl.GetActiveLossOfControlData(i)
        if data then
            print(data.displayText, data.timeRemaining)
        end
    end
end)

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Gotchas & Restrictions

1. CLEU is GONE — Do NOT register for COMBAT_LOG_EVENT_UNFILTERED. It will not fire for addon code in 12.0.0.
2. No combat log parsing — CombatLogGetCurrentEventInfo() is unavailable to tainted code.
3. KString chat messages — Combat log chat tab output is now KStrings that cannot be parsed.
4. Health is secret — UnitHealth() returns secret values in instances. Pass directly to StatusBar:SetValue().
5. Use DurationObjects — Don't do manual cooldown math. Use C_DurationUtil.CreateDuration() and Cooldown:SetCooldownFromDurationObject().
6. Built-in damage meter — Use C_DamageMeter for damage/healing data instead of parsing combat events.
7. SendAddonMessage blocked — Cannot send addon messages in instances. Boss mod addons must use new encounter event patterns.
8. Unit identity restricted — UnitName(), UnitClass() may return secrets for enemy units in instances during combat.
9. Threat in instances — Threat values may be secret. Pass to widgets directly; don't branch on them.
10. Design philosophy — Addons should NOT provide competitive advantage in combat. Blizzard provides built-in replacements for most restricted functionality.