private IEnumerator UFOSpawnRoutine()
{
//While the Classic Round Logic allocated ufo count is not 0
while (currentUFOCount > 0)
{
//Get a random integer between 0 and count to indicate if this frame a UFO will spawn
int randomUFOSpawn = Random.Range(0, currentUFOCount);
//If the random integer is GT 0 and the allocated ufo count is GT 0
if (randomUFOSpawn > 0 && currentUFOCount > 0)
{
//Spawn a ufo and decrement the allocated ufo count.
ufoSpawner.Spawn();
currentUFOCount--;
}
//If there is LT 3 asteroids, spawn all remaining UFOs
if (asteroidSpawner.getActiveCount() < 3 && currentUFOCount > 0)
{
for (int i = 0; i < currentUFOCount; i++)
{
ufoSpawner.Spawn();
}
currentUFOCount = 0;
}
//Wait for 3 seconds before trying to spawn again.
yield return(new WaitForSeconds(3.0f));
}
//Just return if the allocated ufo count is 0.
yield return(null);
}
