WorldMgr

WorldMgr

Subsystem
Official name	Yes
Description	Manages world state (time, blood moons, climates, weather, etc.)
Init function	Switch 1.5.0: 00000071010F2920 Wii U 1.5.0: ???
Debug only	No

The World Manager (WorldMgr) is responsible for managing time, blood moons, climates, weather, fog, wind, lighting, procedural generation of clouds, whether the Lord of the Mountain appears, etc.

Because of the massive amount of state to handle, functionality is split across the main WorldMgr and 9 sub-managers.

WorldMgr

Sub-managers

Sub-managers are created in WorldMgr::init (0x71010F43C0) and inserted into a pointer array (@WorldMgr+0x5c0). All names below are unofficial.

Sub-managers by ID

ID	Description
0	TimeMgr
1	CloudPr? Handles cloud procedural generation.
2	???
3	Weather? Handles "rain splash" and climate weathers.
4	TemperatureMgr? (Reasonably sure about this one.)
5	???
6	Sky and fog? Holds the configuration for all EnvPalettes, EnvAttributes, WeatherInfluences, Remains palettes, Indoor palettes and dungeon fogs.
7	DofMgr? Holds depth of field related parameters.
8	??? (contains a BaseProcLink, so it might have something to do with actors.)

TimeMgr

TimeMgr handles everything to do with time, including Blood Moons and the Lord of the Mountain's apparition.

Internally, time of day is stored as a float in the [0.0, 360.0] range.

TimeMgr::init

• Time is set to 78.75 (05:15).
• Time for TotS environment is set to 78.75 (05:15) as well.
• "Bloody Moon end reserve timer" is set to 0.

TimeMgr::reset

This is called whenever a stage is unloaded (essentially every time the loading screen is shown).

• Blood Moon checks are delayed.
• The AnimalMaster_Appearance flag is cleared, meaning the Lord of the Mountain will not appear.

TimeMgr::calc

This is called every frame.

• If both Demo103_0 and Demo997_0 have not been played, time of day is reset to 78.75 (05:15).
• If AIDef:Action/AdvanceTime or anything else that changes time of day was called, the actual time is updated at this moment.
• "New day" checks (see below).

• Update time of day: if Demo103_0 or Demo997_0 have been played, and if there is no active event (cutscene):
  • Add (0.0083333 * elapsed frames) to the Time of Day timer. Effectively, this means that 1 in-game minute = 1 real-life second.
  • If the timer is >= 360.0, which means that a day has passed, the game subtracts 360 from the timer and then performs "new day" checks. See below.
  • If FindDungeon_Activated is false (if the player hasn't received the The Isolated Plateau quest) and if the current time is >= 165.0 (11:00), the time is forcefully set to 11:00.
  • The Blood Moon timer is updated too.

• Update the #Day/night time flag, the #Time division, IsMorning, IsNoon, etc.
• Decrement the "Bloody Moon end reserve timer". If the new timer value is zero or negative, the WM_BloodyDay flag is cleared.
• Update #Lord of the Mountain flags.

Day/night time flag

From 00:00 to 06:00 (closed interval) and from 18:00 to 00:00 (closed interval), WM_DaytimeFlag is set to false and WM_NighttimeFlag is true.

In any other case, WM_DaytimeFlag is set to true and WM_NighttimeFlag to false.

Time division, IsMorning, IsNoon, etc.

Start	End	Division	Flag
04:00	07:00	0	WM_IsMorningA
07:00	10:00	1	WM_IsMorningB
10:00	13:00	2	WM_IsNoonA
13:00	17:00	3	WM_IsNoonB
17:00	19:00	4	WM_IsEveningA
19:00	21:00	5	WM_IsEveningB
21:00	00:00	6	WM_IsNightA
00:00	04:00	7	WM_IsNightB

Note: all intervals include the start time and exclude the end time.