Time for action – checking high scores in a new scene

The first thing we need is a way to store the high score whenever the level ends. This means we'll need to get the number of cannonballs fired at the end of a round and create a PlayerPrefs entry for it. We'll do this by creating a static function to return the total number of cannonballs fired in the script and calling it from the target whenever it's hit. The steps to do so are as follows:

1. Create a new static function called GetCannonballCount in the ScoreKeeper class, and add a line that returns the integer value of numCannonballsFired, as shown in the following code:

   public static int GetCannonballCount()
   {
     return numCannonballsFired;
   }

2. Open your TargetScript file, and add the following lines to its OnCollisionEnter function to save the player's score, which we'll access later from the high score script:

   void OnCollisionEnter(Collision collidingObj)
   {
     gameObject.renderer.material.color = Color.red;
     PlayerPrefs.SetInt("NewScore"...