Why in my unity project the chasing part is not working? - unityscript

Question

Could someone please maybe download and see my project? It is very simple, but not working as in the tutorial.
In my project, I set IsTrigger to true in either the ThirdPersonController or the AIThirdPersonController for one of the characters. This makes the character fall down from the Plane.
I also changed one of the characters to be tagged as Player and changed the state from PATROL to CHASE but that changed nothing. The other player never chases/follows the player I am controlling and moving around.
Why are the players falling down when I set IsTrigger to true in my project?
I see in the video that the instructor is using a Maze Plane. Is that a package I should import in the Assets or is it already somewhere in the Assets? I just added regular Plane for now because I could not find a Maze Plane.
Here is a link for my project from my OneDrive. The file name is Demo AI.rar:
Project in OneDrive
Here is a link for the video tutorial I am attempting to follow. It is supposes to be simple I suppose:
Tutorial
Here is the BasicAi class I'm using in my project, the same script from the tutorial video:
using System.Collections;
using UnityStandardAssets.Characters.ThirdPerson;
public class BasicAi : MonoBehaviour {
public NavMeshAgent agent;
public ThirdPersonCharacter character;
public enum State {
PATROL,
CHASE
}
public State state;
private bool alive;
// Variables for patrolling
public GameObject[] waypoints;
private int waypointInd = 0;
public float patrolSpeed = 0.5f;
// Variable for chasing
public float chaseSpeed = 1f;
public GameObject target;
// Use this for initialization
void Start () {
agent = GetComponent<NavMeshAgent> ();
character = GetComponent<ThirdPersonCharacter>();
agent.updatePosition = true;
agent.updateRotation = false;
state = BasicAi.State.PATROL;
alive = true;
StartCoroutine ("FSM");
}
IEnumerator FSM()
{
while (alive)
{
switch (state)
{
case State.PATROL:
Patrol ();
break;
case State.CHASE:
Chase ();
break;
}
yield return null;
}
}
void Patrol()
{
agent.speed = patrolSpeed;
if (Vector3.Distance (this.transform.position, waypoints [waypointInd].transform.position) >= 2) {
agent.SetDestination (waypoints [waypointInd].transform.position);
character.Move (agent.desiredVelocity, false, false);
} else if (Vector3.Distance (this.transform.position, waypoints [waypointInd].transform.position) <= 2) {
waypointInd += 1;
if (waypointInd > waypoints.Length) {
waypointInd = 0;
}
}
else
{
character.Move (Vector3.zero, false, false);
}
}
void Chase()
{
agent.speed = chaseSpeed;
agent.SetDestination (target.transform.position);
character.Move (agent.desiredVelocity, false, false);
}
void OnTriggerEnter(Collider coll)
{
if (coll.tag == "Player")
{
state = BasicAi.State.CHASE;
target = coll.gameObject;
}
}
}

Answer 1

Once a collider is a trigger it no longer collides with objects, your best bet is to place a child object that has a collider and setting that to the trigger, this way the original collider will still collide with your ground.
As for your other question how are you referencing your third person character, are you dragging it from the scene into the inspector, and you also have to bake your navmesh into your scene. I haven't looked at your project as that would take a lot of time, but maybe go through the tutorial again and see how they reference the character. With the inbuilt characters you normally have to access the namespace first.