Ultima VII internal formats – SCHEDULE.DAT

The Ultima VII schedule file is "STATIC\SCHEDULE.DAT". It contains the different schedules that the non-player characters (NPCs) have in the game.

Header

Offset	Length	Description
00H	4	NPC number. 256 in both The Black Gate and Serpent Isle. (Next header item size is affected by this.)
04H	NUM*2	Same as the SUM of each NPC's schedule amount. (Because NUM is 256 in Ultima VII, the size is 512 bytes.

Body

Each schedule is 4 bytes.

0xFF000000	0x00FF0000	0x0000FF00	0x000000FF
Schedule number & Match time	X Coordinate in SuperChunk	Y Coordinate in SuperChunk	Superchunk Number

SuperChunk Data

SuperChunk Number = (Real-Y / 256) * 12 + (Real-X / 256)

X = (Real-X modulo 256)

Y = (Real-Y modulo 256)

Get them (SuperChunk Number, X, and Y) easily by hex. (See the real X, Y location in cheat mode.)

Schedule Data

The followings are about Schedule number & Match time byte.

Bit Number	7	6	5	4	3	2	1	0
	Schedule Number					Match Time
	(5 bits)					(3 bits)

Match Time

Match Time
000 = 0AM	100 = 0PM
001 = 3AM	101 = 3PM
010 = 6AM	110 = 6PM
011 = 9AM	111 = 9PM

Schedule Number

Schedule Number
0 = Combat	8 = Miner	16 = Major Sit	24 = Special
1 = Horizontal Pace	9 = Hound	17 = Graze	25 = Kid Games
2 = Vertical Pace	10 = Stand	18 = Bake	26 = Eat at Inn
3 = Talk	11 = Loiter	19 = Sew	27 = Duel
4 = Dance	12 = Wander	20 = Shy	28 = Preach
5 = Eat	13 = Blacksmith	21 = Lab	29 = Patrol
6 = Farm	14 = Sleep	22 = Thief	30 = Desk Work
7 = Tend Shop	15 = Wait	23 = Waiter	31 = Follow Avatar

The Avatar has no schedule, and each NPC must have at least one schedule. Eight is the max amount for one NPC.

To better understand the above information, run Ultima VII or Serpent Isle in cheat mode and check the NPC schedule.

References

DongHo, Byun. "Ultima 7 & 7.5 Schedule Structure." 13 July 1996. Web. 14 July 2015. <http://exult.cvs.sourceforge.net/viewvc/exult/exult/docs/schedule.txt?revision=1.1>.