using UnityEngine;
using UnityEngine.AI;

public class WanderingAIOld : MonoBehaviour
{
    public float wanderRadius;
    public float wanderTimer;

    private Animator anim;
    private NavMeshAgent agent;
    private float timer;
    private Vector3 newPos;

    // Use this for initialization
    void Start()
    {
        agent = this.GetComponent<NavMeshAgent>();
        anim = this.GetComponent<Animator>();
        anim.SetBool("isWalking", false);
        anim.SetBool("isIdle", true);
        newPos = RandomNavSphere(transform.position, wanderRadius, -1);

        timer = wanderTimer;
    }

    // Update is called once per frame
    void Update()
    {
        timer += Time.deltaTime;
        //Debug.Log("Pos: "+ transform.position);

        if (timer >= wanderTimer)
        {
            // generating random destination position
            newPos = RandomNavSphere(transform.position, wanderRadius, -1);
            if(agent.isActiveAndEnabled)
                agent.SetDestination(newPos);
            anim.SetBool("isWalking", true);
            anim.SetBool("isIdle", false);
            timer = 0;
        } else
        {
            // if x and z coordinates of newPos are the same as the position, humans reached destination and idle animation can start
            if (newPos.x == transform.position.x && newPos.z == transform.position.z)
            {
                anim.SetBool("isWalking", false);
                anim.SetBool("isIdle", true);
            }
        }
    }

    public static Vector3 RandomNavSphere(Vector3 origin, float dist, int layermask)
    {
        Vector3 randDirection = Random.insideUnitSphere * dist;
        randDirection += origin;

        NavMeshHit navHit;
        NavMesh.SamplePosition(randDirection, out navHit, dist, layermask);

        return navHit.position;
    }
}