EnemyAttack

using UnityEngine;
using System.Collections;

public class EnemyAttack : MonoBehaviour {
	public GameObject target;
	public float attackTimer;
	public float coolDown;
	
	// Use this for initialization
	void Start () {
		attackTimer = 0;
		coolDown = 2.0f;
	}
	
	// Update is called once per frame
	void Update () {
		// Edge check
		if (attackTimer > 0)
			attackTimer -= Time.deltaTime;
		
		if (attackTimer < 0)
			attackTimer = 0;
		
		// Limit the rate of attack
		if (attackTimer == 0) {
				Attack();
				attackTimer = coolDown;
		}	
	}
	
	private void Attack () {
		// If two objects is the same direction and close enough, then enable damage.
		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);
			}
		}
	}
}