Enemy Ai Field of View

Hey guys,

I managed to get a script working where the enemy will follow the player and catch him. Because I am making a stealth game I am wondering if anyone knows how to give the enemy a field of view? This would enable me to stop the enemy mindlessly following the player until he spots him. And the enemy field of view should be broken by objects so the player can hide behind them.

Cheers for the help!

Here's the code

using UnityEngine; using System.Collections;

public class EnemyAi : MonoBehaviour { public Transform target; public int moveSpeed; public int rotationSpeed; public int maxdistance;

 private Transform myTransform;
 
 void Awake(){
     myTransform = transform;
 }


 void Start () {
     GameObject go = GameObject.FindGameObjectWithTag("Player");
     
     target = go.transform;
 
     maxdistance = 2;
 }
 

 void Update () {
     Debug.DrawLine(target.position, myTransform.position, Color.red); 
     

     myTransform.rotation = Quaternion.Slerp(myTransform.rotation, Quaternion.LookRotation(target.position - myTransform.position), rotationSpeed * Time.deltaTime);
     
     if(Vector3.Distance(target.position, myTransform.position) > maxdistance){
     //Move towards target
     myTransform.position += myTransform.forward * moveSpeed * Time.deltaTime;
 
     }
 }
     

}