public void StartGame()
{
spawner.ResetWaves();
startScreen.SetActive(false);
gamingScreen.SetActive(true);
gameOver.SetActive(false);
Time.timeScale = 1f;
pointController.ResetPoints();
currentAirShip = ((GameObject)Instantiate(airshipPrefab, new Vector2(0, 0), Quaternion.identity)).GetComponent <Airship>();
currentPlayer = ((GameObject)Instantiate(playerPrefab, currentAirShip.GetPlayerStartLocation(), Quaternion.identity)).GetComponent <Player>();
gameState = GameState.Gaming;
spawner.NextWave();
}