// Return false if no more waves
public int SpawnNextWave()
{
if (currentWave == Waves.Length)
{
return(-1);
}
int enemiesToBeSpawned = spawnManager.Begin(Waves[currentWave].spawns, Waves[currentWave].rate, Waves[currentWave].healthMultiplier);
return(enemiesToBeSpawned);
}
