About trigger

So, I would like that when I go close enough to the mob, then EnemyAttack script is enabled. I understood that i can do it with trigger. So how i make that when player touch cube or somethin then this code activate: 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 = 1.0f;

}

// Update is called once per frame void Update () { if(attackTimer > 0) attackTimer -= Time.deltaTime;

if(attackTimer < 0) attackTimer = 0;

if(attackTimer == 0) { Attack(); attackTimer = coolDown; }

} 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);

Debug.Log(direction);

if(distance < 7) { if(direction > 0) { PlayerHealt eh = (PlayerHealt)target.GetComponent("PlayerHealt"); eh.AddjustCurrentHealth(-10); } } }

}