C++ monster spawn in different place not on players

[El Man]

HELP !

i have problem when monster spawn he goes down in the same place where the player is standing .. all just i need when the monster comes down it descends in a different place than the place in which the player stands

I turn : allowBlockSpawn = false : to spawn and there are people in the area

bool Spawn::addMonster(const std::string& _name, const Position& _pos, Direction _dir, uint32_t _interval)
{
    if(!g_game.getTile(_pos))
    {
        std::clog << "[Spawn::addMonster] NULL tile at spawn position (" << _pos << ")" << std::endl;
        return false;
    }

    MonsterType* mType = g_monsters.getMonsterType(_name);
    if(!mType)
    {
        std::clog << "[Spawn::addMonster] Cannot find \"" << _name << "\"" << std::endl;
        return false;
    }

    if(_interval < interval)
        interval = _interval;

    spawnBlock_t sb;
    sb.mType = mType;
    sb.pos = _pos;
    sb.direction = _dir;
    sb.interval = _interval;
    sb.lastSpawn = 0;

    uint32_t spawnId = (int32_t)spawnMap.size() + 1;
    spawnMap[spawnId] = sb;
    return true;
}

i think in this line !