2 #include <stdlib.h> /* for malloc() */
3 #include <stdint.h> /* for uint16_t, uint32_t */
4 #include "misc.h" /* for center_offset() */
5 #include "map_objects.h" /* for Player struct */
6 #include "yx_uint16.h" /* for yx_uint16 and dir enums */
7 #include "rrand.h" /* for rrand() */
11 struct Map init_map ()
18 uint32_t size = map.size.x * map.size.y;
19 map.cells = malloc(size);
21 for (y = 0; y < map.size.y; y++)
23 for (x = 0; x < map.size.x; x++)
25 map.cells[(y * map.size.x) + x] = '~';
28 map.cells[size / 2 + (map.size.x / 2)] = '.';
32 y = rrand() % map.size.y;
33 x = rrand() % map.size.x;
34 curpos = y * map.size.x + x;
35 if ('~' == map.cells[curpos]
36 && ((curpos >= map.size.x && '.' == map.cells[curpos - map.size.x])
37 || (curpos < map.size.x * (map.size.y-1)
38 && '.' == map.cells[curpos + map.size.x])
39 || (curpos > 0 && curpos % map.size.x != 0
40 && '.' == map.cells[curpos-1])
41 || (curpos < (map.size.x * map.size.y)
42 && (curpos+1) % map.size.x != 0
43 && '.' == map.cells[curpos+1])))
45 if (y == 0 || y == map.size.y - 1 || x == 0 || x == map.size.x - 1)
49 map.cells[y * map.size.x + x] = '.';
57 void map_scroll (struct Map * map, enum dir d, struct yx_uint16 win_size)
59 if (NORTH == d && map->offset.y > 0)
63 else if (WEST == d && map->offset.x > 0)
67 else if (SOUTH == d && map->offset.y + win_size.y < map->size.y)
71 else if (EAST == d && map->offset.x + win_size.x < map->size.x)
79 void map_center_player(struct Map * map, struct Player * player,
80 struct yx_uint16 win_size)
82 map->offset.y = center_offset (player->pos.y, map->size.y, win_size.y);
83 map->offset.x = center_offset (player->pos.x, map->size.x, win_size.x);