void Arena::moveZombies()
{
// Move all zombies
for (int k = m_nZombies - 1; k >= 0; k--)
{
Zombie* zp = m_zombies[k];
zp->move();
if (m_player != nullptr &&
zp->row() == m_player->row() && zp->col() == m_player->col())
m_player->setDead();
if (zp->isDead())
{
m_history.record(zp->row(), zp->col());
delete zp;
// The order of Zombie pointers in the m_zombies array is
// irrelevant, so it's easiest to move the last pointer to
// replace the one pointing to the now-deleted zombie. Since
// we are traversing the array from last to first, we know this
// last pointer does not point to a dead zombie.
m_zombies[k] = m_zombies[m_nZombies - 1];
m_nZombies--;
}
}
// Another turn has been taken
m_turns++;
}
int Arena::numberOfZombiesAt(int r, int c) const
{
int count = 0;
for (int k = 0; k < m_nZombies; k++)
{
Zombie* zp = m_zombies[k];
if (zp->row() == r && zp->col() == c)
count++;
}
return count;
}