void Start()
{
EventManager.AddBallSpawnerListner(SpawnBall);
minD = ConfigurationUtils.minDelay;
maxD = ConfigurationUtils.maxDelay;
spawnBT = gameObject.AddComponent <Timer> ();
TempBall(); // Create a temporary ball to get its dimension, the dimesion is used to avoid overlaping of ball spawn at same location
SpawnBall(); // Spawn the first ball at the start of the game
spawnTimer(); // Start the timer to spawn the next ball
}