How to detect if a player is within range of an enemy?

Currently, I'm trying to detect if a player is within range of an enemy which causes the enemy to give chase. Here is my code for detecting if the player is within range so far:

Code (CSharp):

1.         if(Vector3.Distance(this.transform.position, player.transform.position) <= AggroRange)
2.         {
3.             Debug.Log("Player in range");
4.         }

The statement is in FixedUpdate and yet nothing appears. Can someone please help?

 

Looks ok to me try debugging your range make sure you are getting close enough.

Code (CSharp):

1. float seperation = Vector3.Distance(this.transform.position, player.transform.position) ;
2.  
3. Debug.Log("Range to player = " + seperation  );
4.  
5. if(seperation  <= AggroRange)
6. {
7.             Debug.Log("Player in range");
8.    
9. }

 

If you're checking the distance every fixedUpdate, it's actually faster to use a trigger collider around the enemy that reacts to the player entering it.

 

I want to avoid using trigger colliders because it feels very unwieldy. I did find out that the problem is that Vector.Distance isn't updating. I currently have the an instance of the enemy and the player both set to 10 units apart and no matter how close I move, Vector3.distance doesn't update the number.