Making the enemy shoot only when player is alive

Questions & Answers
1

I’m making a pretty simple bullethell game, and I would like the enemy to stop shooting when my player dies(it is active when alive, and not active when dead). I don’t know where I fail in the code. It gives me a NullReferenceException when my player dies (gets deactivated).


    var enemyLaser : GameObject;
    var fireFreq : float;
    var projectileSpeed:float = 0.0;
    private var lastShot : float;
    
    function Update () {
    	if (Time.time > lastShot + fireFreq){
    		Fire();
    		}
    }
    
    function Fire() {
    	lastShot = Time.time;
    	var player = GameObject.Find("player");
    		if (player.active){
                        var shoot = Instantiate(enemyLaser,transform.position,transform.rotation);
    			shoot.rigidbody.velocity = (player.transform.position - transform.position).normalized * projectileSpeed;
    			}
    }
2

when deactivated it cant acces it. you could solve it by having an boolean in the player’s script. and checking that value (if its alive or not)

3

If you’re destroying or disabling the player when they die, then GameObject.Find wil no longer find that object. So after this line…

var player = GameObject.Find("player");

The player variable will be null, then when you reference the player.active property…

		if (player.active)

you’ll get a null reference exception. You can fix it by changing your if statement…

if (player != null && player.active)
{
   ... your stuff here ...
}

So it will only execute the code inside if when the player object is found.