Making Enemy Chase Closest Player (MultiPlayer)

I have a Script to make an enemy chase a player.. it works in single player but now that I added multiplayer I cant get it to work. How can I make the Zombie find the closest player Transform and get him to start chasing?

This is what I have now..

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class AI : MonoBehaviour {
5.  
6.     public Transform target;
7.     public int Maxdistance;
8.     public int MoveSpeed = 5;
9.     public int RotationSpeed = 3;
10.    
11.     private Transform mytransform;
12.  
13.     void Awake ()
14.     {
15.         mytransform = transform;
16.     }
17.    
18.     void Start()
19.     {
20.         GameObject go = GameObject.FindGameObjectWithTag("Player");
21.         target = go.transform;
22.         Maxdistance = 2;
23.     }
24.    
25.     // Update is called once per frame
26.     void Update ()
27.     {
28.         Debug.DrawLine(mytransform.position,target.position,Color.yellow);
29.        
30.         mytransform.rotation = Quaternion.Slerp(mytransform.rotation,Quaternion.LookRotation(target.position - mytransform.position),RotationSpeed * Time.deltaTime);
31.        
32.         if (Vector3.Distance(target.transform.position, mytransform.position) > Maxdistance)
33.         {
34.             mytransform.position += mytransform.forward * MoveSpeed * Time.deltaTime;
35.         }  
36.     }
37. }
38.  

I will worry about the attacking once I get this part figured out(if your wondering)

 

After going over it I realized That the Start() function needed to be in the Update() function so It will continue to look for a new Transform, rather than only looking for one at the start of the game...

About to do some tests to see if it will actually switch between players

So I deleted the Start function and just added the lines to the update like this

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class AI : MonoBehaviour {
5.  
6.     public Transform target;         // Your Player
7.     public float Maxdistance = 2;          // Distance Enemy stops from player
8.     public int MoveSpeed = 5;        // How fast The Enemy will move
9.     public int RotationSpeed = 3;    // How fast The Enemy will rotate
10.    
11.     private Transform mytransform;
12.  
13.     void Awake ()
14.     {
15.         mytransform = transform;
16.     }
17.  
18.     void Update ()
19.     {
20.         GameObject go = GameObject.FindGameObjectWithTag("Player");
21.         target = go.transform;
22.  
23.         Debug.DrawLine(mytransform.position,target.position,Color.yellow);
24.        
25.         mytransform.rotation = Quaternion.Slerp(mytransform.rotation,Quaternion.LookRotation(target.position - mytransform.position),RotationSpeed * Time.deltaTime);
26.        
27.         if (Vector3.Distance(target.transform.position, mytransform.position) > Maxdistance)
28.         {
29.             mytransform.position += mytransform.forward * MoveSpeed * Time.deltaTime;
30.         }  
31.     }
32. }
33.  

 

OK after Testing, The enemy is in the game when one player spawns, but if a second player spawns the zombie disapeers... im guessing because the zombie has two players to pick from and cannoth pick so it just destroys itself?





ANY help is appreciated! thanks