void Start()
{
leftWall = GameObject.FindGameObjectWithTag("Left Wall").GetComponent <BreakableWall>();
rightWall = GameObject.FindGameObjectWithTag("Right Wall").GetComponent <BreakableWall>();
topWall = GameObject.FindGameObjectWithTag("Top Wall").GetComponent <ColorFlash>();
bottomWall = GameObject.FindGameObjectWithTag("Bottom Wall").GetComponent <ColorFlash>();
soundManager = GameObject.FindObjectOfType <SoundManager> ();
canvas = GameObject.FindObjectOfType <Canvas>();
text = canvas.GetComponentInChildren <Text> ();
leftPlayer = Instantiate(leftPlayer, new Vector3(-6, 0, 0), Quaternion.identity);
rightPlayer = Instantiate(rightPlayer, new Vector3(6, 0, 0), Quaternion.identity);
puck = Instantiate(puck, Vector3.zero, Quaternion.identity);
puck.Initialize();
StartCoroutine(puck.ResetPosition());
StartCoroutine(Countdown());
}