random_maps/random_map.c File Reference

#include <global.h>

Go to the source code of this file.

Functions
void	dump_layout (char **layout, RMParms *RP)
mapstruct *	generate_random_map (char *OutFileName, RMParms *RP)
char **	layoutgen (RMParms *RP)
char **	symmetrize_layout (char **maze, int sym, RMParms *RP)
char **	rotate_layout (char **maze, int rotation, RMParms *RP)
void	roomify_layout (char **maze, RMParms *RP)
int	can_make_wall (char **maze, int dx, int dy, int dir, RMParms *RP)
int	make_wall (char **maze, int x, int y, int dir)
void	doorify_layout (char **maze, RMParms *RP)
void	write_map_parameters_to_string (char *buf, RMParms *RP)

---

Detailed Description

Random map generation main routines.

Todo:

Explain process, layout signs (# C D < >) and such.

Definition in file random_map.c.

---

Function Documentation

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	X coordinate to check
dy	Y coordinate to check
dir	Direction: 0: Horizontally. 1: Vertically.
RP	Random map parameters.

Returns:

-1 if wall can't be made, possibly wall length otherwise.

Definition at line 647 of file random_map.c.

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

Puts doors at appropriate locations in a layout.

Parameters:

maze	Layout.
RP	Random map parameters.

Definition at line 829 of file random_map.c.

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

Dumps specified layout using printf().

Parameters:

layout	The layout to dump.
RP	Layout parameters.

Definition at line 37 of file random_map.c.

mapstruct* generate_random_map	(	char *	OutFileName,
		RMParms *	RP
	)

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

Parameters:

OutFileName	The path the map should have.
RP	Parameters for generation.

Returns:

Pointer to the generated map.

Definition at line 68 of file random_map.c.

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:

The built layout, must be freed by caller.

Definition at line 162 of file random_map.c.

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	X position where to put the door.
y	Y position where to put the door.
dir	Wall direction: 0: Horizontally. 1: Vertically.

Returns:

Always returns 0.

Definition at line 784 of file random_map.c.

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	Random map parameters.

Definition at line 588 of file random_map.c.

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 freed by this function.
rotation	How to rotate: 0: Don't do anything. 1: Rotate 90 degrees clockwise. 2: Rotate 180 degrees. 3: Rotate 90 degrees counter-clockwise.
RP	Random map parameters.

Returns:

New layout, must be freed be caller. NULL if invalid rotation.

Definition at line 490 of file random_map.c.

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

Takes a map and makes it symmetric: adjusts Xsize and Ysize to produce a symmetric map.

Parameters:

maze	Layout to symmetrize. Will be freed by this function.
sym	how to make symmetric, a Random map symmetry value.
RP	Random map parameters.

Returns:

New layout, must be freed by caller.

Definition at line 386 of file random_map.c.

void write_map_parameters_to_string	(	char *	buf,
		RMParms *	RP
	)

Creates a suitable message for exit from RP.

Parameters:

buf	Buffer that will contain RP's values.
RP	Parameters to convert to message.

Definition at line 890 of file random_map.c.