//initial copy taken from Unity Learning resources @ 'http://unity3d.com/learn/tutorials/projects/survival-shooter/more-enemies'
var enemy : GameObject; // The enemy prefab to be spawned.
var spawnTime : float = 1f; // How long between each spawn.
var spawnPoints : Transform; // An array of the spawn points this enemy can spawn from.
public var minnumber : int = 1;
public var maxnumber : int = 10;
public var enemynumber : int = 0;
var enemycount : int = 0;
function Start ()
// Call the Spawn function after a delay of the spawnTime and then continue to call after the same amount of time.
InvokeRepeating ("EnemySpawn", spawnTime, spawnTime);
enemynumber = (Random.Range (minnumber, maxnumber));
function EnemySpawn ()
// Find a random index between zero and one less than the number of spawn points.
var spawnPointIndex = (Random.Range (0, spawnPoints.Length));
if (enemycount < enemynumber)
// Create an instance of the enemy prefab at the randomly selected spawn point's position and rotation.
Instantiate (enemy, spawnPoints[spawnPointIndex].position, spawnPoints[spawnPointIndex].rotation);
Work today was primarily on this, a script to handle spawning enemies in the arenas. Can be expanded upon later as needs be. But as is of right now it works by picking a number at random between 1-10, and in x number of seconds spawns that number of enemies at one of four positions chosen at random.