Space Shooter extension evasive maneuver

Questions & Answers
1

In the video at 1:47:00, we need to check for null. How to do that?

2

I am a beginner and have nowhere found a correct answer to this question. But I figured it out. Here for all who are still looking for …

void Start()
{
    //This is the original line from the tutorial.         
    //playerTransform = GameObject.FindWithTag("Player").transform;
    //Replaced by the class "FindTarget" which checks for null.
    FindTarget();
}

//Here is check for null. 
//If the GameObject Player does not exist, the playerTransform uses the GameController

private void FindTarget()
{
    if (GameObject.FindWithTag("Player") == null)
    {
        playerTransform = GameObject.FindWithTag("GameController").transform;
        return;
    }
    
    playerTransform = GameObject.FindWithTag("Player").transform;
}

//So that the existing enemies notice that you are dead,
//need playerTransform a update every frame.

void Update()
{
    FindTarget();
}