rogue_layout.c File Reference

Rogue/nethack-like layout generation. More...

#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)
	Actually make the rogue layout.
static void	roguelike_link_rooms (Room *Rooms, char **maze, int xsize, int ysize)
	Link generated rooms with corridors.
static void	roguelike_make_rooms (Room *Rooms, char **maze, int options)
	Write all the rooms into the maze.
static int	roguelike_place_room (Room *Rooms, int xsize, int ysize, int nrooms)
	Place a room in the layout.
int	surround_check (char **layout, int i, int j, int Xsize, int Ysize)
	Checks free spots around a spot.

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Detailed Description

Rogue/nethack-like layout generation.

Definition in file rogue_layout.c.

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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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