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

public class EnemyScript : MonoBehaviour
{
    public PlayerScript ps;
    public Rigidbody rb;

    public float enemySpeed = 3f;
    public float enemyNoticeDistance = 4f;

    // Start is called before the first frame update
    private void Start()
    {
    }

    // Update is called once per frame
    private void Update()
    {
        Vector3 differenceFromPlayer3D = ps.transform.position - transform.position;
        Vector2 differenceFromPlayer2D = new Vector2(differenceFromPlayer3D.x, differenceFromPlayer3D.z);

        if (differenceFromPlayer2D.magnitude < enemyNoticeDistance)
        {
            Vector2 directionToPlayer2D = differenceFromPlayer2D.normalized * enemySpeed;
            Vector3 directionToPlayer3D = new Vector3(directionToPlayer2D.x, rb.velocity.y, directionToPlayer2D.y);
            rb.velocity = directionToPlayer3D;
        }
        else
        {
            rb.velocity = new Vector3(0, rb.velocity.y, 0);
        }
    }

    private void OnCollisionEnter(Collision other)
    {
        PlayerScript ps = other.collider.GetComponent<PlayerScript>();
        if (ps != null)
        {
            ps.health--;
            Object.Destroy(this.gameObject);
        }
    }
}