[Part 1] Better way of coding jump

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Reposting @l1nked712‘s suggestion:

In my opinion a simpler way to implement jumping is:

[Header("Jump")]
[SerializeField] private float jumpForce = 20;
private bool isGrounded = true;

void Start()
{
      ...
}

void Update()
{
       ...
       Jump();
}

private void OnCollisionEnter2D(Collision2D collision)
{
     isGrounded = true;
}

private void Jump()
{
     if(Input.GetButtonDown("Jump") && isGrounded)
     {
             rb.AddForce(Vector2.up * jumpForce, ForceMode2D.Impulse);
             isGrounded = false;
      }
}

Of course you could add extra constraints to the jump functions if such as if its actually colliding with the ground by adding a tag and then using gameObject.CompareTag but just for the square on this simple floor this would in my opinion be a much simpler implementation. Feel free to correct me if im wrong or if something is suboptimal in this solution.

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