using UnityEngine;
using System.Collections;
using UnityEngine.SceneManagement;
public class PlayerScript : MonoBehaviour {

    private Transform trans;
    public float speed;
    public float size = .5f;
    public float subSize = .5f;
    AudioSource audSource;
    float hor;
    bool lookingRight = true;
    [Header("Sound")]
    public AudioClip eatSFX;

    // Use this for initialization
    void Start () {
        trans = this.gameObject.transform;
        size = trans.localScale.x;
        subSize = trans.localScale.x;
        audSource = GameObject.Find ("Main Camera").GetComponent<AudioSource>();
    }

    // Update is called once per frame
    void Update () {
        trans.Translate (Vector3.up * speed * Input.GetAxis ("Vertical") * Time.deltaTime);
        trans.Translate (Vector3.right * speed * Input.GetAxis ("Horizontal") * Time.deltaTime);
        trans.localScale = new Vector3 (size, subSize, subSize);
    }

    void FixedUpdate(){
        hor = Input.GetAxis ("Horizontal");
        if ((hor > 0 && !lookingRight) || (hor < 0 && lookingRight)) {
            Flip ();
        }
    }

    void OnTriggerEnter2D(Collider2D _other){
        if (_other.gameObject.tag == "Eat") {
            float enemySize = _other.gameObject.GetComponent<EnemyScript> ().size;
            if (enemySize < Mathf.Abs(size)) {
                Destroy (_other.gameObject);
                audSource.PlayOneShot (eatSFX);
                if (size < 0) {
                    size -= (enemySize * .5f);
                }
                else if (size > 0) {
                    size += (enemySize * .5f);
                }
                subSize += (enemySize * .5f);
            }
            else if (enemySize >= Mathf.Abs(size)) {
                Destroy (this.gameObject);
                SceneManager.LoadScene ("GameOver");
            }
        }
    }

    public void Flip()
    {
        lookingRight = !lookingRight;
        /*Vector3 myScale = transform.localScale;
        myScale.x *= -1;
        transform.localScale = myScale;*/
        size *= -1;
    }
}