Unity Enemy AI, health and attack scripts (C#)

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****tation = Quaternion.Slerp(myTransform****tation, 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;
	
		}
	}
		
}

using UnityEngine;
using System.Collections;

public class EnemyAttack : MonoBehaviour {
	public GameObject target;
	public float attackTime;
	public float coolDown;
	


	void Start () {
		attackTime = 0;
		coolDown = 2.0f;
	
	}
	

	void Update () {
		if(attackTime > 0)
			attackTime -= Time.deltaTime;
		
		if(attackTime < 0)
			attackTime = 0;
		
		
	if(attackTime == 0) {
		Attack();
		attackTime = coolDown;
		}
	
	}
	
y 	private void Attack() {
		float distance = Vector3.Distance(target.transform.position, transform.position);
		
		
		Vector3 dir = (target.transform.position - transform.position).normalized;
		float direction = Vector3.Dot(dir, transform.forward);
		
				
		if(distance < 2.5f) {
			if(direction > 0) { 
		PlayerHealth eh = (PlayerHealth)target.GetComponent("PlayerHealth");
		eh.AddjustCurrentHealth(-10);
			}
		}
    }
}

using UnityEngine;
using System.Collections;

public class PlayerHealth : MonoBehaviour {
	public int maxHealth = 100;
	public int curHealth = 100;
	
	public float healthBarLength;


	void Start () {
	healthBarLength = Screen.width / 2;
	}
	

	void Update () {
	AddjustCurrentHealth(0);
		
	}
	
	
	void OnGUI(){
	GUI.Box(new Rect(10, 10, healthBarLength, 20), curHealth + "/" + maxHealth);	
	}
	
   
	public void AddjustCurrentHealth(int adj) {
	  curHealth += adj;	
		
		if(curHealth < 0)
			curHealth = 0;
		
		if(curHealth > maxHealth)
			curHealth = maxHealth;
		
		if(maxHealth < 1)
			maxHealth = 1;
		
		healthBarLength = (Screen.width / 2) * (curHealth / (float)maxHealth);
	}
}