private void Spawn()
{
m_currentIndex++;
WaveElement element = m_waveElements[m_currentIndex];
// Get Zone
SpawnZone zone = SpawnZoneConfiguration.Instance.Zones.Find(z => z.Tag == element.SpawnZone);
// Spawn object
m_lastSpawned = Instantiate(element.UnitPrefab, zone.GetRandomPointInZone(), Quaternion.identity);
m_lastSpawnTime = Time.time;
m_nextSpawn = Time.time + element.TimeBeforeNext;
}