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

public class JumpBox : MonoBehaviour
{
[Range(0, 10)] public float jumpVelocity = 5f;
public LayerMask mask;
public float boxHeight;
private Vector2 playerSize;
private Vector2 boxSize;
private bool jumpRequest;
private bool grounded;
private Rigidbody2D _rigidbody2D;

// Start is called before the first frame update
void Start()
{
    _rigidbody2D = GetComponent<Rigidbody2D>();
    playerSize = GetComponent<SpriteRenderer>().bounds.size;
    boxSize = new Vector2(playerSize.x * 0.8f, boxHeight );

}

// Update is called once per frame
void Update()
{
    if (Input .GetButtonDown ("Jump")&&grounded )
    {
        jumpRequest = true;
    }
}
private void FixedUpdate()
{
    if (jumpRequest )
    {
        _rigidbody2D.AddForce(Vector2.up * jumpVelocity, ForceMode2D.Impulse);
        jumpRequest = false ;
        grounded = false;
    }
    else
    {
        Vector2 boxCenter = (Vector2)transform.position + (Vector2.down  * playerSize.y * 0.5f);
        if (Physics2D .OverlapBox (boxCenter ,boxSize ,0,mask )!=null )
        {
            grounded = true;
        }
        else
        {
            grounded = false ;
        }
    }
}
private void OnDrawGizmos()
{
    if (grounded )
    {
        Gizmos.color =Color.red;
    }
    else
    {
        Gizmos.color=Color.green;
    }

    Vector2 boxCenter = (Vector2)transform.position + (Vector2.down  * playerSize.y * 0.5f);
    Gizmos.DrawWireCube(boxCenter, boxSize);
}

}