public Zombie GetZombie()
{
/*
* NOTICE:
* In your code, make sure to check the spawn limit.
* you can either:
* 1. Throw an exception
* 2. Return null
* 3. Spawn a new zombie anyways.
*
* We'll return null.
*/
if (this.numberActive >= spawnCap)
{
return(null);
}
if (this.numberReserved == 0)
{
Zombie tmp = new Zombie();
this.reserveList.Add(tmp);
this.numberReserved++;
}
Zombie zomb = this.reserveList[0];
this.reserveList.RemoveAt(0);
this.numberReserved--;
this.activeList.Insert(0, zomb);
this.numberActive++;
zomb.Clean();
return(zomb);
}