Persist.dat

Unlocking more levels

To unlock (all) of the levels, fill the range 0x08 to 0x28 with "FF". So far this has caused no problems, and allows you to add more levels to the game. Levels will not be visible unless there is a corrisponding LevelX_Final.dat in the Gamedata folder, and an ONLD that matches the level number in the level0_final.dat. Levels above 39 are not currently unlockable due to the 40 level savepoint limit in the persist.dat (probably reflecting an underlying engine restriction).

Header

Offset	Type	Raw Hex	Value	Description
0x00	int32	0F 00 00 00	15	version
0x04	int32	0E 0B D0 D0	0xD0D00B0E	signature
0x08	int32	5C 7F 0C 00	0x000C7F5C	level unlock data for levels 0-31; each level has a corresponding bit: 0x01 00 00 00 - level 0 (always unlocked, ignored) 0x02 00 00 00 - level 1 (always unlocked, ignored) 0x04 00 00 00 - level 2 ... 0x00 00 08 00 - level 19
0x0C	int32	00 00 00 00		level unlock data for levels 32-63
0x10	int32	00 00 00 00		level unlock data for levels 64-95
0x14	int32	00 00 00 00		level unlock data for levels 96-127
0x18	int32	00 00 00 00		level unlock data for levels 128-159
0x1C	int32	00 00 00 00		level unlock data for levels 160-191
0x20	int32	00 00 00 00		level unlock data for levels 192-223
0x24	int32	00 00 00 00		level unlock data for levels 224-255
0x28	int32	01 00 00 00	1	killed Griffin (0 = no, 1 = yes)
0x2C		FE 1B 00 00	7166	unlocked weapons; one bit for each weapon; the number of corresponding bit is given by the skill index value in the primary firing mode block of each ONWC
0x30		1F 00 00 00	31	unlocked items; one bit for each item type (hypo, ammo etc.)
0x34		13 00 00 00	19	last read diary page (level)
0x38		01 00 00 00	1	last read diary page (page)
0x3C	int32	04 00 00 00	4	level of detail; the following options are possible: 0 - extra low 1 - low 2 - medium 3 - high 4 - extra high
0x40	float	00 00 80 3F	1.0	music volume (0.0 = min, 1.0 = max)
0x44	int32	06 00 00 00	6	option flags; the following values are possible: 0x01 00 00 00 - show subtitles 0x02 00 00 00 - invert mouse 0x04 00 00 00 - game won (aka cheats enabled)
0x48	int32	02 00 00 00	2	difficulity; the following values are possible: 0 - easy 1 - medium 2 - hard
0x4C	int16	20 03	800	resolution: width
0x4E	int16	02 58	800	resolution: height
0x50	int16	20 00	32	color depth
0x52		00 00		padding
0x54	float	00 00 00 3F	0.5	gamma correction (0.0 = min, 1.0 = max)
0x58	int32	03 00 00 00	3	last saved level
0x5C	int32	02 00 00 00	3	last saved savepoint

This header is followed by an array of 400 savepoints (40 levels, 10 savepoints per level). The size of a savepoint is 516 bytes so the array size is 206400 bytes.

Savepoint

Offset	Type	Raw Hex	Value	Description
0x00	char[64]	"Save Point 2"		name of the save point
0x40	int32	01 00 00 00	1	valid (was saved previously) savepoint (0 = no, 1 = yes)
0x44	int32	BE 00 00 00	190	current player health
0x48	int32	C8 00 00 00	200	max player health
0x4C	float	AE 20 FB 43	502.255310	x position of the player
0x50	float	03 32 4B 42	50.798839	y position of the player
0x54	float	55 12 25 C4	-660.286437	z position of the player
0x58	float	80 06 C1 3F	1.508010	player facing direction (radians)
0x5C	int32	00 00 00 00	0	ammo amount
0x60	int32	01 00 00 00	1	energy cells amount
0x64	int32	00 00 00 00	0	shield (percent)
0x68	int32	00 00 00 00	0	invisibility (1/60 seconds)
0x6C	int32	01 00 00 00	1	hypo ammount
0x70	int32	00 00 00 00	0	door keys
0x74	int32	01 00 00 00	1	character has lsi (0 = no, 1 = yes)
0x78	char[128]	""		weapon name
0xF8	int32	00 00 00 00	0	weapon ammo
0xFC	char[128]	""		weapon name
0x17C	int32	00 00 00 00	0	weapon ammo
0x180	char[128]	"w2_sap"		weapon name
0x200	int32	1E 00 00 00	30	weapon ammo