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

public class PlayerController : MonoBehaviour
{
    Rigidbody2D rbody;
    float axisH = 0.0f;  // ÀÔ·Â
    public float speed = 3.0f;   // À̵¿ ¼Óµµ

    public float jump = 9.0f;
    public LayerMask groundLayer;
    bool isDead = false;
    bool onGround = false;

    Animator animator;
    public string stopAnime = "PlayerStop";
    public string moveAnime = "PlayerMove";
    public string jumpAnime = "PlayerJump";
    public string goalAnime = "PlayerGoal";
    public string deadAnime = "PlayerOver";
    string nowAnime = "";
    string oldAnime = "";

    // Start is called before the first frame update
    void Start()
    {
        rbody = GetComponent<Rigidbody2D>();
        //Animator °¡Á®¿À±â
        animator = GetComponent<Animator>();
        nowAnime = stopAnime;
        oldAnime = stopAnime;
    }

    // Update is called once per frame
    void Update()
    {
        axisH = Input.GetAxisRaw("Horizontal");

        if(isDead)
        {
            return;
        }

        if(axisH > 0.0f) { 
            Debug.Log("¿À¸¥ÂÊ À̵¿");
            transform.localScale = new Vector2(1, 1);
        }

        else if (axisH < 0.0f)
        {
            Debug.Log("¿ÞÂÊ À̵¿");
            transform.localScale = new Vector2(-1, 1);
        }

        
    }

    private void FixedUpdate()
    {
        onGround = Physics2D.Linecast(transform.position,
                                      transform.position - (transform.up * 0.1f),
                                      groundLayer);

        if (onGround || axisH != 0)
        { 
            rbody.velocity = new Vector2(speed * axisH, rbody.velocity.y); 
        }

        if (onGround)
        {
            Debug.Log("Á¡ÇÁ!");
            Vector2 jumpPw = new Vector2(0, jump);
            rbody.AddForce(jumpPw, ForceMode2D.Impulse);
            
        }
        
        if(onGround)
        {
            if(axisH == 0)
            {
                nowAnime = stopAnime;
            }

            else
            {
                nowAnime = moveAnime;
            }
        }

        else
        {
            nowAnime = jumpAnime;
        }

        if(nowAnime != oldAnime)
        {
            oldAnime = nowAnime;
            animator.Play(nowAnime);
        }
    }

    public void Jump()
    {
        
        Debug.Log(" Á¡ÇÁ ¹öÆ° ´­¸²! ");
    }

    private void OnCollisionEnter2D(Collision2D collision)
    {
        if (collision.contacts[0].normal.y > 0.7f)
        {
            onGround = true;
        }
    }

    private void OnCollisionExit2D(Collider2D collision)
    {
            onGround = false;
    }

    private void OnTriggerEnter2D(Collider2D collision)
    {
        if (collision.gameObject.tag == "Goal")
        {
            Goal();
        }

        else if (collision.gameObject.tag == "Dead" && !isDead)
        {
            GameOver();
        }
    }

    public void Goal()
    { 
       animator.Play(goalAnime);
    }

    public void GameOver()
    {
       animator.Play(deadAnime);
    }
}