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

public class EnemyController : MonoBehaviour {

	public float maxSpeed = 1f;
	public float speed = 1f;

	private Rigidbody2D rb2d;
    HealthBar health;
    PlayerController player;

	// Use this for initialization
	void Start () {
		rb2d = GetComponent<Rigidbody2D>();
        health = GameObject.FindGameObjectWithTag("Health").GetComponent<HealthBar>();
	}
	
	// Update is called once per frame
	void FixedUpdate () {
		rb2d.AddForce(Vector2.right * speed);		
		float limitedSpeed = Mathf.Clamp(rb2d.velocity.x, -maxSpeed, maxSpeed);
		rb2d.velocity = new Vector2(limitedSpeed, rb2d.velocity.y);

		if (rb2d.velocity.x > -0.01f && rb2d.velocity.x < 0.01f){
			speed = -speed;
			rb2d.velocity = new Vector2(speed, rb2d.velocity.y);
		}

		if (speed < 0) {
			transform.localScale = new Vector3(1f, 1f, 1f);
		} else if (speed > 0){
			transform.localScale = new Vector3(-1f, 1f, 1f);
		}
	}

	void OnTriggerEnter2D(Collider2D col){
        if(col.gameObject.tag == "Fall"){
            Destroy(gameObject);
        }
	}
    private void OnCollisionEnter2D(Collision2D col){
        if (col.gameObject.tag == "Player"){
            if (health.isHealing == false){
                health.SendMessage("TakeDamage", 1);
                health.isHealing = true;
            }
        }
        if (col.gameObject.tag == "Bullet"){
            Destroy(gameObject);
        }
    }
}