#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#include <time.h>
#include "global.h"
#include "maze_gen.h"
#include "random_map.h"
#include "room_gen.h"
#include "rproto.h"
#include "sproto.h"

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Functions
int	can_make_wall (char *maze, int dx, int dy, int dir, RMParms RP)

void	doorify_layout (char *maze, RMParms RP)

void	dump_layout (char *layout, RMParms RP)

mapstruct *	generate_random_map (const char OutFileName, RMParms RP, char **use_layout, sstring reset_group)

char **	layoutgen (RMParms *RP)

int	make_wall (char **maze, int x, int y, int dir)

void	roomify_layout (char *maze, RMParms RP)

char **	rotate_layout (char *maze, int rotation, RMParms RP)

char **	symmetrize_layout (char *maze, int sym, RMParms RP)

StringBuffer *	write_map_parameters_to_string (const RMParms *RP)

Detailed Description

Routines for random map generation.

Todo:: Explain process, layout signs (#, C, <, >) and such. Use constants for common spot types.

Definition in file random_map.cpp.

Function Documentation

◆ can_make_wall()

int can_make_wall	(	char **	maze,
		int	dx,
		int	dy,
		int	dir,
		RMParms *	RP
	)

Checks the layout to see if we can stick a horizontal (dir = 0) wall (or vertical, dir == 1) here which ends up on other walls sensibly.

Parameters

maze	layout.
dx
dy	coordinates to check
dir	direction: 0: horizontally. 1: vertically.
RP	random map parameters.

Returns: -1 if wall can't be made, possibly wall length else.

Definition at line 558 of file random_map.cpp.

References surround_flag2(), diamondslots::x, RMParms::Xsize, diamondslots::y, and RMParms::Ysize.

Referenced by roomify_layout().

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◆ doorify_layout()

void doorify_layout	(	char **	maze,
		RMParms *	RP
	)

Puts doors at appropriate locations in a layout.

Parameters

maze	layout.
RP	map parameters.

Definition at line 697 of file random_map.cpp.

References RANDOM, surround_flag(), RMParms::Xsize, and RMParms::Ysize.

Referenced by layoutgen().

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◆ dump_layout()

void dump_layout	(	char **	layout,
		RMParms *	RP
	)

Dumps specified layout using printf().

Parameters

layout	layout to dump.
RP	layout parameters.

Definition at line 43 of file random_map.cpp.

References RMParms::Xsize, and RMParms::Ysize.

Referenced by generate_random_map(), and layoutgen().

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◆ generate_random_map()

mapstruct* generate_random_map	(	const char *	OutFileName,
		RMParms *	RP,
		char **	use_layout,
		sstring	reset_group
	)

Main random map routine. Generates a random map based on specified parameters.

Parameters

OutFileName	the path the map should have.
RP	parameters for generation.
use_layout	if not NULL, this should be a suitable layout.
reset_group	if not NULL, the reset group this map will be part of, else the path will be used.

Returns: Crossfire map, which should be free()d by caller.

Definition at line 75 of file random_map.cpp.

References add_string(), apply_auto_fix(), buf, calculate_difficulty(), change_map_light(), RMParms::darkness, RMParms::decoroptions, RMParms::decorstyle, RMParms::difficulty, mapstruct::difficulty, RMParms::difficulty_given, RMParms::difficulty_increase, RMParms::doorstyle, dump_layout(), RMParms::dungeon_level, RMParms::exitstyle, RMParms::expand2x, RMParms::floorstyle, make_face_from_files::int, mapstruct::last_reset_time, layoutgen(), make_map_floor(), make_map_walls(), RMParms::map_layout_style, MIN_RANDOM_MAP_SIZE, RMParms::monsterstyle, mapstruct::msg, RMParms::orientation, mapstruct::outdoor, mapstruct::path, place_exits(), place_monsters(), place_specials_in_map(), place_treasure(), put_decor(), put_doors(), RANDOM, RMParms::random_seed, RMParms::region, mapstruct::region, mapstruct::reset_group, ROGUELIKE_LAYOUT, rotate_layout(), safe_strncpy, seconds(), set_darkness_map(), SRANDOM, stringbuffer_finish(), RMParms::treasureoptions, RMParms::treasurestyle, unblock_exits(), RMParms::wallstyle, write_map_parameters_to_string(), RMParms::Xsize, and RMParms::Ysize.

Referenced by cfapi_generate_random_map(), enter_random_map(), enter_random_template_map(), and generate_map().

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◆ layoutgen()

char** layoutgen ( RMParms * RP )

This function builds the actual layout. Selects the layout based on parameters and gives it whatever arguments it needs.

Parameters

RP	random map parameters.

Returns: layout, must be free()d be caller.

Todo:: use an array for name/style mapping. Refactor to call only one function for each (will make it easier to override later on).

Definition at line 225 of file random_map.cpp.

References doorify_layout(), dump_layout(), expand2x(), RMParms::expand2x, RMParms::layoutoptions1, RMParms::layoutoptions2, RMParms::layoutstyle, make_snake_layout(), make_square_spiral_layout(), map_gen_onion(), map_gen_spiral(), RMParms::map_layout_style, maze_gen(), MAZE_LAYOUT, MIN_RANDOM_MAP_SIZE, NO_SYM, NROFLAYOUTS, ONION_LAYOUT, OPT_WALLS_ONLY, RANDOM, RANDOM_SYM, ROGUELIKE_LAYOUT, roguelike_layout_gen(), roomify_layout(), SNAKE_LAYOUT, SPIRAL_LAYOUT, SQUARE_SPIRAL_LAYOUT, symmetrize_layout(), RMParms::symmetry, RMParms::symmetry_used, X_SYM, RMParms::Xsize, XY_SYM, Y_SYM, and RMParms::Ysize.

Referenced by generate_random_map().

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◆ make_wall()

int make_wall	(	char **	maze,
		int	x,
		int	y,
		int	dir
	)

Cuts the layout horizontally or vertically by a wall with a door.

Parameters

maze	layout.
x
y	where to put the door.
dir	wall direction: 0: horizontally. 1: vertically.

Returns: 0

Definition at line 658 of file random_map.cpp.

References diamondslots::x, and diamondslots::y.

Referenced by make_square_spiral_layout(), and roomify_layout().

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◆ roomify_layout()

void roomify_layout	(	char **	maze,
		RMParms *	RP
	)

Take a layout and make some rooms in it. Works best on onions.

Parameters

maze	layout to alter.
RP	map parameters.

Definition at line 510 of file random_map.cpp.

References can_make_wall(), make_wall(), RANDOM, RMParms::Xsize, and RMParms::Ysize.

Referenced by layoutgen().

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◆ rotate_layout()

char** rotate_layout	(	char **	maze,
		int	rotation,
		RMParms *	RP
	)

Takes a map and rotates it. This completes the onion layouts, making them possibly centered on any wall. It'll modify Xsize and Ysize if they're swapped.

Parameters

maze	layout to rotate, will be free()d by this function.
rotation	how to rotate: 0: don't do anything. 1: rotate 90 deg clockwise. 2: rotate 180 deg. 3: rotate 90 deg counter-clockwise.
RP	random map parameters.