2 #include <stdint.h> /* for uint16_t, uint32_t */
3 #include "misc.h" /* for try_malloc(), center_offset() */
4 #include "map_objects.h" /* for Player struct */
5 #include "yx_uint16.h" /* for yx_uint16 and dir enums */
6 #include "rrand.h" /* for rrand() */
11 struct Map init_map(struct World * world)
13 char * f_name = "init_map()";
19 uint32_t size = map.size.x * map.size.y;
20 map.cells = try_malloc(size, world, f_name);
22 for (y = 0; y < map.size.y; y++)
24 for (x = 0; x < map.size.x; x++)
26 map.cells[(y * map.size.x) + x] = '~';
29 map.cells[size / 2 + (map.size.x / 2)] = '.';
33 y = rrand() % map.size.y;
34 x = rrand() % map.size.x;
35 curpos = y * map.size.x + x;
36 if ('~' == map.cells[curpos]
37 && ((curpos >= map.size.x && '.' == map.cells[curpos - map.size.x])
38 || (curpos < map.size.x * (map.size.y-1)
39 && '.' == map.cells[curpos + map.size.x])
40 || (curpos > 0 && curpos % map.size.x != 0
41 && '.' == map.cells[curpos-1])
42 || (curpos < (map.size.x * map.size.y)
43 && (curpos+1) % map.size.x != 0
44 && '.' == map.cells[curpos+1])))
46 if (y == 0 || y == map.size.y - 1 || x == 0 || x == map.size.x - 1)
50 map.cells[y * map.size.x + x] = '.';
58 void map_scroll (struct Map * map, enum dir d, struct yx_uint16 win_size)
60 if (NORTH == d && map->offset.y > 0)
64 else if (WEST == d && map->offset.x > 0)
68 else if (SOUTH == d && map->offset.y + win_size.y < map->size.y)
72 else if (EAST == d && map->offset.x + win_size.x < map->size.x)
80 void map_center_player(struct Map * map, struct Player * player,
81 struct yx_uint16 win_size)
83 map->offset.y = center_offset (player->pos.y, map->size.y, win_size.y);
84 map->offset.x = center_offset (player->pos.x, map->size.x, win_size.x);