/**
* True if the square is empty (an open square without any items).
*/
bool square_isempty(struct chunk *c, int y, int x) {
return square_isopen(c, y, x) && !square_object(c, y, x);
}
/**
* True if the square is empty (an open square without any items).
*/
bool square_isempty(struct chunk *c, int y, int x) {
if (square_isplayertrap(c, y, x)) return FALSE;
return square_isopen(c, y, x) && !square_object(c, y, x);
}
/**
* Helper function to place monsters that appear as friends or escorts
*/
bool place_friends(struct chunk *c, int y, int x, struct monster_race *race,
struct monster_race *friends_race, int total, bool sleep,
byte origin)
{
int extra_chance;
/* Find the difference between current dungeon depth and monster level */
int level_difference = player->depth - friends_race->level + 5;
/* Handle unique monsters */
bool is_unique = rf_has(friends_race->flags, RF_UNIQUE);
/* Make sure the unique hasn't been killed already */
if (is_unique) {
total = friends_race->cur_num < friends_race->max_num ? 1 : 0;
}
/* More than 4 levels OoD, no groups allowed */
if (level_difference <= 0 && !is_unique) {
return false;
}
/* Reduce group size within 5 levels of natural depth*/
if (level_difference < 10 && !is_unique) {
extra_chance = (total * level_difference) % 10;
total = total * level_difference / 10;
/* Instead of flooring the group value, we use the decimal place
as a chance of an extra monster */
if (randint0(10) > extra_chance) {
total += 1;
}
}
/* No monsters in this group */
if (total > 0) {
/* Handle friends same as original monster */
if (race->ridx == friends_race->ridx) {
return place_new_monster_group(c, y, x, race, sleep, total, origin);
} else {
int j;
int nx = 0;
int ny = 0;
/* Find a nearby place to put the other groups */
for (j = 0; j < 50; j++) {
scatter(c, &ny, &nx, y, x, GROUP_DISTANCE, false);
if (square_isopen(c, ny, nx)) {
break;
}
}
/* Place the monsters */
bool success = place_new_monster_one(c, ny, nx, friends_race, sleep, origin);
if (total > 1)
success = place_new_monster_group(c, ny, nx, friends_race, sleep, total, origin);
return success;
}
}
return false;
}
