using UnityEngine;

public class PlayerController : MonoBehaviour
{
    [SerializeField]
    private Animator animator;
    [SerializeField]
    private float MovementSpeed = 1.5f;
    [SerializeField]
    private LayerMask ladderLayer;
    [SerializeField] 
    private LayerMask groundLayer;
    [SerializeField]
    private float distance;
    private bool _isOnLadder;
    private Rigidbody2D _body;
    private BoxCollider2D _boxCollider;
    private bool _isFall;

    void Start()
    {
        _body = GetComponent<Rigidbody2D>();
        _boxCollider= GetComponent<BoxCollider2D>();
    }
    void Update()
    {
        float moveX = 0;              
        float moveY = 0;
        
        var groundCheck = Physics2D.BoxCast(_boxCollider.bounds.center,_boxCollider.bounds.size,0f, Vector2.down, .1f,groundLayer);
        
        if (groundCheck || _isOnLadder)
        {
            

            _isFall =false;
            moveX = Input.GetAxisRaw("Horizontal");
            animator.SetFloat("Horizontal", moveX);

            if (IsLadder(Vector2.down))
            {
                _isOnLadder = true;
                moveY = Input.GetAxisRaw("Vertical");
                if(moveY> 0)
                {
                    if (!IsLadder(Vector2.up))
                    {
                        moveY = 0;
                    }
                }
            }
            else
            {
                _isOnLadder = false;
            }
            _body.velocity = new Vector2(moveX * MovementSpeed, moveY * MovementSpeed);
        }
        else
        {
            _isFall = true;
            print("Falling");
        }
    }

    private RaycastHit2D IsLadder(Vector2 direction)
    {
        return Physics2D.BoxCast(_boxCollider.bounds.center, _boxCollider.bounds.size, 0f, direction, .1f, ladderLayer);
    }

    private void FixedUpdate()
    {
        if (_isOnLadder)
        {
           
            _body.gravityScale = 0;
        }
        else
        {
            _body.gravityScale = 1;
        }
        if (_isFall)
        {
            _body.velocity = new Vector2(0, _body.velocity.y);
            animator.SetFloat("Horizontal", 0);
        }
    }
}