void IZombie.TakeDamage(int damage)
{
if (this.zombies.Count == 0)
{
return;
}
IZombie zombie = this.zombies[0];
zombie.TakeDamage(damage);
if (zombie.getHealth() <= 0)
{
IZombie newZombie = zombie.die();
if (newZombie != null)
{
this.addZombie(newZombie);
}
this.zombies.Remove(zombie);
}
}