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09-16-19, 05:35 AM   #1
SnaBe
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Join Date: Sep 2019
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Exclamation Getting spellId from CombatLogGetCurrentEventInfo in WoW Classic

Hello fellow developers!

I've been working on an addon for WoW Classic and currently hit a little bump.

I'm using the COMBAT_LOG_EVENT_UNFILTERED event to get information regarding spells being cast by certain players, their target and so on. I researched that the API requires you to use the CombatLogGetCurrentEventInfo() method to retrieve the event info like so:

Lua Code:
  1. local timestamp, eventType, _, sourceGUID, sourceName, _, _, destGUID, destName, _, _, spellId, spellName, spellSchool = CombatLogGetCurrentEventInfo()

But in Classic I don't get the spellId (Correction: I do get a spellId but it's always 0). However, I get every other combat log detail. The code works like intended on the retail version of WoW (See the full code below), but not in the Classic release. I know theres been changes to the WoW API to restrict certain methods and functionality. However, I've been unable to find any documentation regarding changing how the COMBAT_LOG_EVENT_UNFILTERED event and CombatLogGetCurrentEventInfo method functions. So I must be doing something wrong regarding how the API works with Classic? (Compared to retail)

Here's the full code:

Lua Code:
  1. local spells = {
  2.     SPELL_AURA_APPLIED = {
  3.         [19742] = 300, -- Rank 1 Blessing of Wisdom
  4.         [19850] = 300, -- Rank 2 Blessing of Wisdom
  5.         [19852] = 300, -- Rank 3 Blessing of Wisdom
  6.         [19853] = 300, -- Rank 4 Blessing of Wisdom
  7.         [19854] = 300, -- Rank 5 Blessing of Wisdom
  8.         [25290] = 300, -- Rank 6 Blessing of Wisdom
  9.         [19740] = 300, -- Rank 1 Blessing of Might
  10.         [19834] = 300, -- Rank 2 Blessing of Might
  11.         [19835] = 300, -- Rank 3 Blessing of Might
  12.         [19836] = 300, -- Rank 4 Blessing of Might
  13.         [19837] = 300, -- Rank 5 Blessing of Might
  14.         [19838] = 300, -- Rank 6 Blessing of Might  
  15.         [25291] = 300, -- Rank 7 Blessing of Might  
  16.     },
  17. }
  18.  
  19. local function eventHandler(self, event, ...)
  20.     if event == 'COMBAT_LOG_EVENT_UNFILTERED' then
  21.         local timestamp, eventType, _, sourceGUID, sourceName, _, _, destGUID, destName, _, _, spellId, spellName, spellSchool = CombatLogGetCurrentEventInfo()
  22.         -- Debug the combat log event
  23.         print('Player ' .. sourceName .. ' casted ' .. spellName .. ' (id: ' .. spellId .. ', school: ' .. spellSchool .. ') on ' .. destName .. ' triggered by ' .. eventType)
  24.        
  25.         if spells[eventType] and spells[eventType][spellId] and sourceGUID == UnitGUID('player') then
  26.             print('Success!')
  27.             -- Handle Aura buff
  28.         end
  29.     end
  30. end
  31.  
  32. local eventFrame = CreateFrame('Frame')
  33.  
  34. eventFrame:RegisterEvent('COMBAT_LOG_EVENT_UNFILTERED')
  35.  
  36. eventFrame:SetScript('OnEvent', eventHandler)

So if anyone could help me out with my mistakes or point me in the direction of some useful documentation or examples, I would be really grateful!

- SnaBe

Last edited by SnaBe : 09-16-19 at 07:23 AM. Reason: Correction
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