unity how to make jump script
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class jump : MonoBehaviour
{
public float jumpHeight = 7f;
public bool isGrounded;
public float NumberJumps = 0f;
public float MaxJumps = 2;
private Rigidbody rb;
void Start()
{
rb = GetComponent<Rigidbody>();
}
void Update()
{
if (NumberJumps > MaxJumps - 1)
{
isGrounded = false;
}
if (isGrounded)
{
if (Input.GetButtonDown("Jump"))
{
rb.AddForce(Vector3.up * jumpHeight);
NumberJumps += 1;
}
}
}
void OnCollisionEnter(Collision other)
{
isGrounded = true;
NumberJumps = 0;
}
void OnCollisionExit(Collision other)
{
}
}