2 #include <stdlib.h> /* for malloc() */
3 #include <stdint.h> /* for uint16_t, uint32_t */
4 #include "misc.h" /* for rrand() and center_offset() */
5 #include "map_objects.h" /* for Player struct */
6 #include "yx_uint16.h" /* for yx_uint16 and dir enums */
10 struct Map init_map ()
17 uint32_t size = map.size.x * map.size.y;
18 map.cells = malloc(size);
20 for (y = 0; y < map.size.y; y++)
22 for (x = 0; x < map.size.x; x++)
24 map.cells[(y * map.size.x) + x] = '~';
27 map.cells[size / 2 + (map.size.x / 2)] = '.';
31 y = rrand(0, 0) % map.size.y;
32 x = rrand(0, 0) % map.size.x;
33 curpos = y * map.size.x + x;
34 if ('~' == map.cells[curpos]
35 && ((curpos >= map.size.x && '.' == map.cells[curpos - map.size.x])
36 || (curpos < map.size.x * (map.size.y-1)
37 && '.' == map.cells[curpos + map.size.x])
38 || (curpos > 0 && curpos % map.size.x != 0
39 && '.' == map.cells[curpos-1])
40 || (curpos < (map.size.x * map.size.y)
41 && (curpos+1) % map.size.x != 0
42 && '.' == map.cells[curpos+1])))
44 if (y == 0 || y == map.size.y - 1 || x == 0 || x == map.size.x - 1)
48 map.cells[y * map.size.x + x] = '.';
56 void map_scroll (struct Map * map, enum dir d, struct yx_uint16 win_size)
58 if (NORTH == d && map->offset.y > 0)
62 else if (WEST == d && map->offset.x > 0)
66 else if (SOUTH == d && map->offset.y + win_size.y < map->size.y)
70 else if (EAST == d && map->offset.x + win_size.x < map->size.x)
78 void map_center_player(struct Map * map, struct Player * player,
79 struct yx_uint16 win_size)
81 map->offset.y = center_offset (player->pos.y, map->size.y, win_size.y);
82 map->offset.x = center_offset (player->pos.x, map->size.x, win_size.x);