User:Belal/Memory research

Feburary 17, 2010 - Windows Version 0.28.181.40d17

Addresses

Address	Type	Name	Information
0x014240A4	std::vector()	Notes	holds the notes for the map
0x01E185DC	std::vector()	Fort	vector of fort objects, however only has the currently active fort in it
0x01E18510	std::vector()	Settlements	holds data for all the settlements in the world, they are in the vector by creation date, so the current fort is always length-1

Offsets

Notes

Looks like:

struct Note {
  char symbol;
  int foreground;
  int background;
  string name;
  int x;
  int y;
  int z;
}

Offset (+Hex)	Type	Name	Information
0x0	char	symbol type	ascii char for the symbol to use
0x2	int	foreground color	foreground color for the note
0x4	int	background color	background color for the note
0x8	string	name	text for the note
0x24	int	x
0x26	int	y
0x28	int	z

This is interesting: the ints are two bytes each, yet the string starts at offset 0x8, implying something in it requires four-byte alignment. Moving char symbol to immediately after string name in the structure should immediately save at least two bytes per instance without having to change the types of any of the members.

Forts

settlements		8B 0D ? ? ? ? 8B 0C A9 83 79  70 FF
current_settlement 	8B 0D ? ? ? ? 8B 0C B1 83 B9 14 01 00 00 00

Offset (+Hex)	Type	Name	Information
0x38	dword	prefix	the index for the first part of the fort name
0x3C	dword	suffix	the index for the last part of the fort name
0x7a	word	world_map x
0x7c	word	world_map y
0x100	word	local_map x_begin
0x102	word	local_map x_end
0x104	word	local_map y_begin
0x106	word	local_map y_end

Object Size = 0x198

These are indexes to the name vectors, in the stock screen both the dwarven name and the generic name are displayed

Linux d16

Addresses

settlements		8B 15 ? ? ? ? 29 D0 C1 E8  02 0F 84 B1 00 00 00	0x08F9C77C
current_settlement	A1 ? ? ? ? 8B 1C 30 8B 83 A8 00 00 00 89 2C 24	0x08F9C7E8