+static char * build_visible_map(struct Thing * player)
+{
+ char * f_name = "build_visible_map()";
+ uint32_t map_size = world.map.length * world.map.length;
+ char * visible_map = try_malloc(map_size, f_name);
+ memset(visible_map, ' ', map_size);
+ uint16_t pos_i;
+ for (pos_i = 0; pos_i < map_size; pos_i++)
+ {
+ if (player->fov_map[pos_i] & VISIBLE)
+ {
+ visible_map[pos_i] = world.map.cells[pos_i];
+ }
+ }
+ struct Thing * t;
+ struct ThingType * tt;
+ char c;
+ uint8_t i;
+ for (i = 0; i < 2; i++)
+ {
+ for (t = world.things; t != 0; t = t->next)
+ {
+ if ( player->fov_map[yx_to_map_pos(&t->pos)] & VISIBLE
+ && ( (0 == i && 0 == t->lifepoints)
+ || (1 == i && 0 < t->lifepoints)))
+ {
+ tt = get_thing_type(t->type);
+ c = tt->char_on_map;
+ visible_map[yx_to_map_pos(&t->pos)] = c;
+ }
+ }
+ }
+ return visible_map;
+}
+
+
+
+static void write_map(struct Thing * player, FILE * file)