public class enermy : MonoBehaviour
{
    public int MaxHealth = 100;
    int CurrentHealth;

    [SerializeField] 
    Transform sparwnpoint;

    [SerializeField]
    Transform player;

    [SerializeField]
    float AgroRange;

    [SerializeField]
    float MoveSpeed;

    Rigidbody2D rb2d;

    public Animator animator;

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

        CurrentHealth = MaxHealth;


        rb2d = GetComponent<Rigidbody2D>();

    }

    // Update is called once per frame
    void Update()
    {
        //check the distence to the player
        float DisToPlayer = Vector2.Distance(transform.position, player.position);

        if (DisToPlayer < AgroRange)
        {

            //code to chase player
            ChasePlayer();

        }
        else
        {

            //stop chasing player
            StopChasingPlayer();

        }

        animator.SetFloat("Speed", Mathf.Abs(MoveSpeed));
    }
    void ChasePlayer()
    {
        if (transform.position.x < player.position.x) 
        {
            //enemry left side of the player, so move right
            rb2d.AddForce (new Vector2(MoveSpeed, 0));
            transform.localScale = new Vector2(1, 1);
        }
        else if (transform.position.x > player.position.x)
        {
            //enemry right side of the player, so move left
            rb2d.AddForce (new Vector2(-MoveSpeed, 0));
            transform.localScale = new Vector2(-1, 1);
        }
    }

    void StopChasingPlayer()
    {

        rb2d.AddForce (new Vector2(0, 0));

    }

    public void TakeDamage(int damage)
    {

        CurrentHealth -= damage;

        //hurt animation

        if(CurrentHealth <= 0)
        {

            transform.position = sparwnpoint.position;

        }

    }


}