Jump

My character can jump infinity but I only want them to jump one time.

Code:
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using UnityEngine;

public class Platformer : MonoBehaviour

{
// Start is called before the first frame update

Rigidbody2D rb;
public float moveBy;
public float speed;
//public float radius;
public LayerMask layerMask;
public bool isGrounded;
public Transform point;
public float jumpHeight;
public float jumpSpeed;
void Start()
{
rb = GetComponent<Rigidbody2D>();
}



// Update is called once per frame
void Update()
{
float x = Input.GetAxisRaw("Horizontal");
moveBy = x * speed;
rb.velocity = new Vector2(moveBy, rb.velocity.y);
//sGrounded = Physics2D.OverlapCircle(point.position, radius, layerMask);
isGrounded = true;
// Jump code
//f (isGrounded == true)
if (Input.GetButtonDown("Jump"))
{
rb.velocity = new Vector2(rb.velocity.y, jumpHeight);
isGrounded = false;
}
}

}

 

How to report your problem productively in the Unity3D forums:

http://plbm.com/?p=220

How to understand compiler and other errors and even fix them yourself:

https://forum.unity.com/threads/ass...3-syntax-error-expected.1039702/#post-6730855

If you post a code snippet, ALWAYS USE CODE TAGS:

How to use code tags: https://forum.unity.com/threads/using-code-tags-properly.143875/

Also, consider this: