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

public class ScientistController : MonoBehaviour {

    public GameObject frontDetector;
    public GameObject backDetector;
    public GameObject shootPoint;
    public GameObject shootEnd;
    public LayerMask playerMask;
    public bool isRight = false;
    public LineRenderer lr;
    public float lineWidth;
    public HealthController hc;
    public float damage = 0.1f;
    public float teleportInfluence = 1f;
    public GameObject Player;
    public bool teleported;


    // Use this for initialization
    void Start () {
        lr = GetComponent<LineRenderer>();       
        

    }
	
	// Update is called once per frame
	void Update () {

        Player = GameObject.FindGameObjectWithTag("Player");
        hc = Player.GetComponent<HealthController>();

        turn();
        shoot();
        Teleport();
	}


    void Teleport()
    {
        if (Physics2D.OverlapCircle(this.transform.position,teleportInfluence,playerMask))
        {
            if (!teleported)
            {
                transform.position = new Vector2(Player.transform.position.x - .25f, Player.transform.position.y);
                teleported = true;
            }
           
        }
    }

    void shoot()
    {
        if (Physics2D.Linecast(this.gameObject.transform.position, frontDetector.transform.position, playerMask))
        {
            lr.enabled = true;
            lr.SetPosition(0, new Vector3(shootPoint.transform.position.x, shootPoint.transform.position.y, shootPoint.transform.position.z));
            lr.SetPosition(1, shootEnd.transform.position);
            lr.startWidth = Random.Range(0.015f, 0.05f);

            hc.health = hc.health - damage;

        }
        else
        {
            lr.enabled = false;
        }

        if (Physics2D.Linecast(shootPoint.transform.position, shootEnd.transform.position, playerMask))
        {

        }


    }

    void turn()
    {
        if (Physics2D.Linecast(this.gameObject.transform.position, backDetector.transform.position, playerMask))
        {
            isRight = !isRight;

        }

        if (isRight == false)
        {
            transform.rotation = new Quaternion(0, 180, 0, 0);

        }
        else if (isRight == true)
        {
            transform.rotation = new Quaternion(0, 0, 0, 0);
        }
    }

    private void OnDrawGizmos()
    {
        Gizmos.DrawWireSphere(this.transform.position, teleportInfluence);
    }
}