private IEnumerator spawnEnemiesInWave(WaveConfiguration wave)
{
for (int enemyCount = 0; enemyCount < wave.getNumberOfEnemies(); enemyCount++)
{
var newEnemy = Instantiate(
wave.getEnemyPreab(),
wave.getWaypoints()[0].transform.position,
Quaternion.identity);
newEnemy.GetComponent <EnemyMovement>().setWaveConfig(wave);
yield return(new WaitForSeconds(wave.getTimeBetweenSpawns()));
}
}