(UINT8)     UpdateType
(UINT32)     Unit Id
 (UINT8)     Timer
(UINT16)[48] Array of quest state flags

Update type:

Id	Description
1	for a NPC
6	global

Unit id:
Id of the NPC or 0.

Timer:
Always 0.

Quests are state-machine, with up to 16 states whose with up-to 16 binary states. States are identified by an ID that takes value in [0,15].

Quest states flag - indexes:

Id	Quest
0	Spoke to Warriv
1	Den of Evil
2	Sisters' Burial Grounds
4	The Search for Cain
5	Forgotten Tower
3	Tools of the Trade
6	Sisters to the Slaughter
7	Able to go to Act II
8	Spoke to Jerhyn
9	Radament's Lair
10	The Horadric Staff
11	The Tainted Sun
12	The Arcane Sanctuary
13	The Summoner
14	The Seven Tombs
15	Able to go to Act III
16	Spoke to Hratli
20	The Golden Bird
19	Blade of the Old Religion
18	Khalim's Will
17	Lam Esen's Tome
21	The Blackened Temple
22	The Guardian
23	Able to go to Act IV
24	Spoke to Tyrael
25	The Fallen Angel
27	Hell's Forge
26	Terror's End
28	Able to go to Act V
32	Spoke to Cain
35	Siege on Haggorath
36	Rescue on Mount Arreat
37	Prison of Ice
38	Betrayal of Haggorath
39	Rite of Passage
40	Eve of Destruction
41	Secret Cow Level

Quest states flag - value:

Each bit represents 1 of the 16 possible states:

• State 0: 1st bit (use 00000000 00000001 or 0x0001 filter)
• State 1: 2nd bit (use 00000000 00000010 or 0x0002 filter)
• ...
• State 15: 16st bit (use 10000000 00000000 or 0x8000 filter)

IMPORTANT: indexes & states are the same as with the D2BS API function me.getQuest(questId, state).

States 0, 1, 13, 14 and 15 have the same meaning for all quests:

• 0: quest completed (both requirements & thanks by NPC & reward used)
• 1: quest requirements completed, must go town validate quest by NPC(s) or use the reward
• 12: box in quest menu is greyed. Just requires that at least one member of the party has reached state 0 ?
• 13: quest requirements cleared for/by the party in this game
• 14: Another party completed the requirements in this game. if not 13, I cannot complete this quest in this game. If 13 (ex: Forgotten tower completed by a teamate), ignore
• 15: I completed the quest requirements in a previous game & there was a reward & reward had not been used in the same game but later or not yet.

State 2, 3, 4, 5, 6, 7, 8 , 9, 10, 11 and 12 have different meaning for each quest.