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

public class ArrowSript : MonoBehaviour
{
    private GameObject targetObj;

    // set the target obj
    public void SetTargetObj(GameObject obj)
    {
        targetObj = obj;
    }

    // method to place the arrow over the passed object
    private void PlaceArrowOverObject(GameObject obj)
    {
        // get the obj position
        Vector3 objPos = obj.transform.position;

        // put the arrow over the obj
        transform.position = objPos;

        // rotate the arrow to face the obj
        transform.LookAt(obj.transform);

        // increase the arrow height from the obj top
        transform.position += new Vector3(0, 0.3f, 0);

        // show
        ShowArrow(obj);
    }

    // method to show the arrow
    public void ShowArrow(GameObject obj)
    {
        // enable the arrow
        gameObject.SetActive(true);
    }

    public void Update()
    {
        // rotate on y axis
        transform.Rotate(0.5f, 0, 0);

        // if the target obj is not null
        if (targetObj != null)
        {
            // place the arrow over the target obj
            PlaceArrowOverObject(targetObj);
        }
    }

    // method to hide the arrow
    public void HideArrow()
    {
        // disable the arrow
        gameObject.SetActive(false);
    }
}