EnemyZombie.cs

using UnityEngine;
using System.Collections;

public class EnemyZombie : MonoBehaviour {
    public Ray ray;
    public GameObject player;
	// Use this for initialization
	void Start ()
    {
	
	}
	
	// Update is called once per frame
	void Update ()
    {
        RaycastHit hit;
        ray = new Ray(transform.position, Vector3.forward);

        if (Physics.Raycast(ray, out hit))
        {
            if(hit.collider == player)
            {
                Debug.Log("Hit, hit, damage report");
                transform.position = player.transform.position;
            }
        }
	
	}
}