using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Sight: Sense {
    public int FieldOfView = 45;
    public int ViewDistance = 100;

    private Transform playerTrans;
    private Vector3 rayDirection;

    protected override void Initialize()
    {
    //Find player position
    playerTrans =  GameObject.FindGameObjectWithTag("Player").transform;
  }

  // Update is called once per frame
  protected override void UpdateSense() {
    elapsedTime += Time.deltaTime;

    // Detect perspective sense if within the detection rate
    if (elapsedTime >= detectionRate) DetectAspect();
  }

  //Detect perspective field of view for the AI Character
  void DetectAspect() {
    RaycastHit hit;

    //Direction from current position to player position
    rayDirection = playerTrans.position -
        transform.position;

    //Check the angle between the AI character's forward
    //vector and the direction vector between player and AI
    if ((Vector3.Angle(rayDirection, transform.forward)) < FieldOfView) {
      // Detect if player is within the field of view
      if (Physics.Raycast(transform.position, rayDirection, out hit, ViewDistance))
      {
          if (hit.transform.tag == "Player")
          {
              print("Player detected");
          }
      }
      }
    }
  }