// Initializes a new wave of zombies.
public void initNewLevel()
{
Debug.Log("StartGame");
currentLevel++;
addWaveText();
player = GameObject.FindGameObjectWithTag("ThePlayer").GetComponent <PlayerScript>();
popUpTextScript.newLevelStartedText(currentLevel);
newLevelSound.Play();
// Zombies spawn after 2 seconds
Invoke("SpawnZombies", 2f);
}