int dy = rand_range(6, floor_ptr->height - 6);
int dx = rand_range(6, floor_ptr->width - 6);
floor_ptr->grid_array[dy][dx].feat = feat_entrance;
floor_ptr->grid_array[dy][dx].special = wilderness[y][x].entrance;
int dy = rand_range(6, floor_ptr->height - 6);
int dx = rand_range(6, floor_ptr->width - 6);
floor_ptr->grid_array[dy][dx].feat = feat_entrance;
floor_ptr->grid_array[dy][dx].special = wilderness[y][x].entrance;