/*
* Map info, misc map functions.
*
* Copyright (C) 2003, David Redick
* Released under the GNU General Public License (v2)
*/

#ifndef LWMAPGEN_MAP_H
#define LWMAPGEN_MAP_H


#include <allegro.h>
#include "func.h"
#include "misc.h"

#define ALLEGRO_USE_CONSOLE

extern char default_filename[10];


#define MIN_MAP_SIZE     0
#define MAX_MAP_SIZE     6
#define DEFAULT_MAP_SIZE     3

extern int map_size[MAX_MAP_SIZE][2];


#define RANDOM_MAP_GRID_SIZE  0
#define MIN_MAP_GRID_SIZE     1
#define MAX_MAP_GRID_SIZE     10
extern int map_grid_size[MAX_MAP_GRID_SIZE][2];


typedef struct
{
     char *filename;        /* should not be changed */

     int width, height;     /* should not be changed */
     BITMAP *map;

     /* grid size */
     int num_row, num_col;

     /* section size */
     float sec_width, sec_height;     /* should not be changed */

     /* the color to draw with */
     int color;     /* 0 == normal, 255 == inverted */

     int func_id;
     void (*func)();
} map_t;

extern map_t map;


/* sets up the map for drawing */
void clear_map();
void clear_invert_map();

/* print all the map info to stdout */
/* really for debugging */
void print_map();


/*****************************************************************************/
/* Misc functions */

/*
* The default sections looks like this:
*     c 0   1   2
*  r  +---+---+---+
*  0  | 0 | 1 | 2 | <-+
*     +---+---+---+   |
*  1  | 3 | 4 | 5 | <-+- i
*     +---+---+---+
*/

/* get i from r, c */
#define section(r,c)     ( (r*map.num_col)+c )

/* get r, c from i */
void section_rc( int *row, int *col, int i );


void offset( int *xoffset, int *yoffset, int r, int c );

void rand_point_section( int *x, int *y, int pad );

void rand_point_section_offset( int *x, int *y, int r, int c, int pad );

void section_center( int *x, int *y, int r, int c );

/*****************************************************************************/


#endif