room_gen_spiral.cpp File Reference

The spiral room generator: More...

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

Go to the source code of this file.

Macros
#define	FINE_SPIRAL   2
	uses the min. More...
#define	FIT_SPIRAL   4
	scale to a rectangular region, not square More...
#define	MAX(x, y)   (((x) < (y)) ? (y) : (x))
#define	MAX_FINE   .454545
#define	MAX_SPIRAL_OPT   8
	this should be 2x the last real option More...
#define	MIN(x, y)   (((x) < (y)) ? (x) : (y))
#define	RANDOM_OPTIONS   0
	Pick random options below. More...
#define	REGULAR_SPIRAL   1
	Regular spiral–distance increases constantly. More...

Functions
void	connect_spirals (int xsize, int ysize, int sym, char **layout)
	Connects disjoint spirals which may result from the symmetrization process. More...
char **	map_gen_spiral (int xsize, int ysize, int option, int _unused_layers)
	Generates a spiral layout. More...
int	surround_check (char **maze, int i, int j, int xsize, int ysize)
	Checks free spots around a spot. More...

Detailed Description

The spiral room generator:

Todo:

Check if MAX_FINE can't be removed.

Definition in file room_gen_spiral.cpp.

Macro Definition Documentation

MAX

#define MAX	(		x,
			y
	)		(((x) < (y)) ? (y) : (x))

Definition at line 44 of file room_gen_spiral.cpp.

MAX_FINE

#define MAX_FINE   .454545

Definition at line 47 of file room_gen_spiral.cpp.

Referenced by map_gen_spiral().

MIN

#define MIN	(		x,
			y
	)		(((x) < (y)) ? (x) : (y))

Definition at line 41 of file room_gen_spiral.cpp.

Referenced by map_gen_spiral().

Function Documentation

connect_spirals()

void connect_spirals	(	int	xsize,
		int	ysize,
		int	sym,
		char **	layout
	)

Connects disjoint spirals which may result from the symmetrization process.

Parameters

xsize
ysize	layout size.
sym	one of the SYM_xxx values.
layout	layout to alter.

Definition at line 159 of file room_gen_spiral.cpp.

References surround_check(), X_SYM, XY_SYM, and Y_SYM.

Referenced by symmetrize_layout().

map_gen_spiral()

char** map_gen_spiral	(	int	xsize,
		int	ysize,
		int	option,
		int	_unused_layers
	)

Generates a spiral layout.

Parameters

xsize
ysize	layout size.
option	combination of SPIRAL_xxx values.
_unused_layers	unused.

Returns

generated layout.

Definition at line 62 of file room_gen_spiral.cpp.

References FINE_SPIRAL, FIT_SPIRAL, MAX_FINE, MAX_SPIRAL_OPT, MIN, RANDOM, and REGULAR_SPIRAL.

Referenced by layoutgen().

surround_check()

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 280 of file rogue_layout.cpp.

Referenced by connect_spirals(), and roguelike_layout_gen().