rogue_layout.c File Reference

#include <global.h>
#include <random_map.h>
#include <math.h>

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Data Structures
struct	Room

Functions
char **	roguelike_layout_gen (int xsize, int ysize, int options)
static void	roguelike_link_rooms (Room *Rooms, char **maze, int xsize, int ysize)
static void	roguelike_make_rooms (Room *Rooms, char **maze, int options)
static int	roguelike_place_room (Room *Rooms, int xsize, int ysize, int nrooms)
int	surround_check (char **layout, int i, int j, int Xsize, int Ysize)

Detailed Description

Rogue/nethack-like layout generation

Definition in file rogue_layout.c.

Function Documentation

char** roguelike_layout_gen	(	int	xsize,
		int	ysize,
		int	options
	)

Actually make the rogue layout. We work by a reduction process: first we make everything a wall, then we remove areas to make rooms

Parameters

xsize
ysize	wanted layout size.
options	2 to have circular rooms, 1 for rectanglar ones, another value for random choice.

Returns

generated layout.

Definition at line 69 of file rogue_layout.c.

References roguelike_link_rooms(), roguelike_make_rooms(), roguelike_place_room(), surround_check(), Room::x, and Room::y.

Referenced by layoutgen(), and main().

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static void roguelike_link_rooms ( Room *  Rooms, char **  maze, int  xsize, int  ysize  )

static

Link generated rooms with corridors.

Parameters

Rooms	room list.
maze	maze.
xsize
ysize	maze size.

Definition at line 300 of file rogue_layout.c.

References MAX, MIN, Room::x, and Room::y.

Referenced by roguelike_layout_gen().

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static void roguelike_make_rooms ( Room *  Rooms, char **  maze, int  options  )

static

Write all the rooms into the maze.

Parameters

Rooms	list of rooms to write.
maze	where to write to.
options	2 to have circular rooms, 1 for rectanglar ones, another value for random choice.

Definition at line 254 of file rogue_layout.c.

References Room::ax, Room::ay, Room::sx, Room::sy, Room::x, and Room::y.

Referenced by roguelike_layout_gen().

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static int roguelike_place_room ( Room *  Rooms, int  xsize, int  ysize, int  nrooms  )

static

Place a room in the layout.

Parameters

Rooms	list of existing rooms, new room will be added to it.
xsize
ysize	layout size.
nrooms	wanted number of room, used to determine size.

Returns

0 if no room could be generated, 1 else.

Definition at line 180 of file rogue_layout.c.

References Room::ax, Room::ay, isqrt(), Room::sx, Room::sy, Room::x, Room::y, Room::zx, and Room::zy.

Referenced by roguelike_layout_gen().

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int surround_check	(	char **	layout,
		int	i,
		int	j,
		int	Xsize,
		int	Ysize
	)

Checks free spots around a spot.

Parameters

layout	map layout.
i
j	coordinates to check.
Xsize
Ysize	size of the layout.

Returns

combination of the following values:

• 1 = free space to left,
• 2 = free space to right,
• 4 = free space above
• 8 = free space below

Todo:

there is an equivalent function in another layout, merge them together.

Definition at line 44 of file rogue_layout.c.

Referenced by connect_spirals(), and roguelike_layout_gen().

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