expand2x.c File Reference

Expands a layout by 2x in each dimension. More...

#include <stdlib.h>
#include <expand2x.h>

Include dependency graph for expand2x.c:

Go to the source code of this file.

Functions
static int	calc_pattern (char ch, char **layout, int i, int j, int xsize, int ysize)
	Returns a bitmap that represents which squares on the right and bottom edges of a square (i,j) match the given character.
char **	expand2x (char **layout, int xsize, int ysize)
	Expands the layout be a factor 2.
static void	expand_door (char **newlayout, int i, int j, char **layout, int xsize, int ysize)
	Expand a door.
static void	expand_misc (char **newlayout, int i, int j, char **layout)
	Copy the old tile X into the new one at location (i*2, j*2) and fill up the rest of the 2x2 result with 0: X ---> X 0 0 0.
static void	expand_wall (char **newlayout, int i, int j, char **layout, int xsize, int ysize)
	Expand a wall.

---

Detailed Description

Expands a layout by 2x in each dimension.

H. S. Teoh

Definition in file expand2x.c.

---

Function Documentation

static int calc_pattern	(	char	ch,
		char **	layout,
		int	i,
		int	j,
		int	xsize,
		int	ysize
	)		[static]

Returns a bitmap that represents which squares on the right and bottom edges of a square (i,j) match the given character.

Parameters:

ch	character to look for.
layout	map.
i
j	spot where to look.
xsize
ysize	layout size.

Returns:

combination of the following values:

• 1 means match on (i+1, j).
• 2 means match on (i, j+1).
• 4 means match on (i+1, j+1).

Definition at line 115 of file expand2x.c.

Referenced by expand_door(), and expand_wall().

Here is the caller graph for this function:

char** expand2x	(	char **	layout,
		int	xsize,
		int	ysize
	)

Expands the layout be a factor 2.

Doors and walls are taken care of.

Parameters:

layout	layout to expand. Memory is free()d at the end, so pointer becomes invalid.
xsize
ysize	layout size.

Returns:

new layout. Must be free()d by caller.

Definition at line 39 of file expand2x.c.

References expand_door(), expand_misc(), and expand_wall().

Referenced by layoutgen(), and main().

Here is the call graph for this function:

Here is the caller graph for this function:

static void expand_door	(	char **	newlayout,
		int	i,
		int	j,
		char **	layout,
		int	xsize,
		int	ysize
	)		[static]

Expand a door.

This function will try to sensibly connect doors so that they meet up with adjacent walls. Note that it will also presumptuously delete (ignore) doors that it doesn't know how to correctly expand.

Parameters:

newlayout	expanded layout.
i
j	coordinates of door to expand in non expanded layout.
layout	non expanded layout.
xsize
ysize	size of non expanded layout.

Definition at line 188 of file expand2x.c.

References calc_pattern().

Referenced by expand2x().

Here is the call graph for this function:

Here is the caller graph for this function:

static void expand_misc	(	char **	newlayout,
		int	i,
		int	j,
		char **	layout
	)		[static]

Copy the old tile X into the new one at location (i*2, j*2) and fill up the rest of the 2x2 result with 0: X ---> X 0 0 0.

Parameters:

newlayout	map layout.
i
j	spot to expand.
layout	map layout.

Definition at line 89 of file expand2x.c.

Referenced by expand2x().

Here is the caller graph for this function:

static void expand_wall	(	char **	newlayout,
		int	i,
		int	j,
		char **	layout,
		int	xsize,
		int	ysize
	)		[static]

Expand a wall.

This function will try to sensibly connect the resulting wall to adjacent wall squares, so that the result won't have disconnected walls.

Parameters:

newlayout	map layout.
i
j	coordinates of wall to expand in non expanded layout.
layout	current (non expanded) layout.
xsize
ysize	sizes of layout.

Definition at line 146 of file expand2x.c.

References calc_pattern().

Referenced by expand2x().

Here is the call graph for this function:

Here is the caller graph for this function: