Interceptor_Behaviour

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

public class DroneMove : MonoBehaviour
{
    public Transform target; //current target. Pass a transform here via different script
    public GameObject carrier; //the carrier this object returns to.
    public float moveSpeed;
    public float rotSpeed;
    public float distToTarget;
    public float acqRange;
    public Vector2[] rndPointList;
    public int pointID;
    public bool newTarget; //set by a different script
    public string obj_Tag;
    //
    DroneManager droneManager;
    //
    void Start()
    {
        pointID = 0;
        GenerateRndPoints();
    }
    public void GenerateRndPoints()
    {

        while (pointID < rndPointList.Length)
        {
            if (pointID < 1)
            {
                rndPointList[pointID] = target.position;
            }
            else if (pointID >= 1)
            {
                rndPointList[pointID].x = target.position.x + Random.Range(-2.5f, 2.5f);
                rndPointList[pointID].y = target.position.y + Random.Range(-2.5f, 2.5f);
            }
            pointID++;
        }
        pointID = 0;
    }
    void Update()
    {
        if (target != null)
        {
            Move();
            FaceTarget();
        }
        else if (target == null)
        {
            ReturnToCarrier();
            FaceCarrier();
        }
        DistanceCheck();
        if (newTarget == true)
        {
            GenerateRndPoints();
            newTarget = false;
        }
        if (carrier == null)
        {
            Destroy(this.gameObject);
        }
    }

    void ReturnToCarrier()
    {
        if (distToTarget > acqRange)
        {
            this.transform.Translate(moveSpeed * Time.deltaTime, 0, 0);
        }
        else if (distToTarget <= acqRange)
        {
            droneManager = carrier.GetComponent<DroneManager>();
            droneManager.drones.Remove(this.gameObject);
            Destroy(this.gameObject);
        }
    }
    void FaceCarrier()
    {
        Vector2 direction = carrier.transform.position - this.transform.position;
        float angle = Mathf.Atan2(direction.y, direction.x) * Mathf.Rad2Deg;
        Quaternion rotation = Quaternion.AngleAxis(angle, Vector3.forward);
        transform.rotation = Quaternion.Slerp(transform.rotation, rotation, rotSpeed * Time.deltaTime);
    }
    void Move()
    {
        if (distToTarget > acqRange)
        {
            this.transform.Translate(moveSpeed * Time.deltaTime, 0, 0);
        }
        if (distToTarget < acqRange)
        {
            if (pointID < rndPointList.Length - 1)
            {
                pointID++;
                //Debug.Log("Point ID value:" + pointID);
            }
            else if (pointID >= rndPointList.Length - 1)
            {
                pointID = 0;
                GenerateRndPoints();
            }

        }
    }

    void DistanceCheck()
    {
        if (target != null)
        {
            distToTarget = Vector3.Distance(this.transform.position, rndPointList[pointID]);
        }
        else if (target == null)
        {
            distToTarget = Vector3.Distance(this.transform.position, carrier.transform.position);
        }

    }
    void FaceTarget()
    {
        //rotate towards target code
        Vector2 direction = rndPointList[pointID] - (Vector2)transform.position;
        float angle = Mathf.Atan2(direction.y, direction.x) * Mathf.Rad2Deg;
        Quaternion rotation = Quaternion.AngleAxis(angle, Vector3.forward);
        transform.rotation = Quaternion.Slerp(transform.rotation, rotation, rotSpeed * Time.deltaTime);


    }
}