Gameobject follow player on trigger collision

Questions & Answers
1

Hi, I am trying to make a gameobject follow the player once the player enters a sphere collider on the gameobject, however instead of following the player when it collides with the trigger, it follows the player from the second I start the test run.

I am at a loss. Any tips would be appreciated.

using UnityEngine;
using System.Collections;

public class DetectPlayer : MonoBehaviour {

	NavMeshAgent agent;
	public Transform target;
	public GameObject Player;
	public bool follow = false;

	// Use this for initialization
	void Start () {
		agent = GetComponent<NavMeshAgent> ();
	}
	
	// Update is called once per frame
	void Update () {
		if (follow == true) {
			agent.SetDestination (target.position);
		}
	}

	void OnTriggerEnter (Collider col) {
            //checking if player collides with trigger
		if (col.GetComponent<Collider>().tag == Player.tag) {
			follow = true;
		}
	}
}
2

Put the following script on the object that will follow the player:

public GameObject target;
NavMeshAgent agent;

void Start () {
    agent = GetComponent<NavMeshAgent> ();
}

void Update () {
    agent.destination = target.transform.position;
}

void OnTriggerEnter (Collider collision) {
    if (collision.tag == "Player")
        target = GameObject.FindGameObjectWithTag ("Player");
}