how can i repeat an if statment for x sec?

Questions & Answers
1

Hi! I trying to make the Player jump if it is grounded and if the player isn’t grounded check if the Player will be grounded in the next x sec. So if the Player become grounded i the x sec it will jump.

The First Part is working will but the checking for x sec part I don’t know how to do it.

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

public class Movements : MonoBehaviour
{

    [SerializeField] Rigidbody2D rg;
    [SerializeField] float movementSpeed;
    [SerializeField] float maxSpeed;
    [SerializeField] float jumpForce;
    [SerializeField] float raydis;
    [SerializeField] LayerMask GroundLayerMask;

    public float jumpCheckingTime = 0.3f;

    // Start is called before the first frame update
    void Start()
    {
        rg = GetComponent<Rigidbody2D>();
    }

    // Update is called once per frame
    void Update()
    {

        if (Input.GetKeyDown(KeyCode.Space))
            Jump(); 
    }

    private void FixedUpdate()
    {

        float moveX = Input.GetAxis("Horizontal");

        if(Input.GetKey(KeyCode.A) && rg.velocity.x > -maxSpeed)
            rg.AddForce(new Vector2(moveX * movementSpeed, 0f), ForceMode2D.Force);
        if(Input.GetKey(KeyCode.D) && rg.velocity.x < maxSpeed)
            rg.AddForce(new Vector2(moveX * movementSpeed, 0f), ForceMode2D.Force);


    }

    bool IsGrounded()
    {
        RaycastHit2D hit = Physics2D.Raycast(transform.position, Vector2.down, raydis, GroundLayerMask);
        if (hit.collider != null)
        {
            if (hit.collider.tag == "Ground")
            {
                return true;
            }
            else return false;
        }
        else
        {
            return false;
        }

    }

    void Jump()
    {

        if (IsGrounded())
        {
            rg.velocity = new Vector2(rg.velocity.x, 0f);
            rg.AddForce(new Vector2(0f, jumpForce), ForceMode2D.Impulse);
        }
        else
        {
            // Check for x Sec is the player will be grouned
        }
    }

}
2

CODE NOT TESTED

 [SerializeField] float jumpRequestBufferDuration = 0.2f;
 float lastJumpRequestTime = Mathf.NegativeInfinity;
 void Update()
 { 
     if (Input.GetKeyDown(KeyCode.Space) || Time.timeSinceLevelLoad < lastJumpRequestTime + jumpRequestBufferDuration)
         Jump(); 
 }

 void Jump()
 { 
     if (IsGrounded())
     {
         rg.velocity = new Vector2(rg.velocity.x, 0f);
         rg.AddForce(new Vector2(0f, jumpForce), ForceMode2D.Impulse);
         lastJumpRequestTime = Mathf.NegativeInfinity;
     }
     else
     {
         lastJumpRequestTime = Time.timeSinceLevelLoad;
     }
 }