// Finds whether the character is grounded
isGrounded = Physics2D.OverlapCircle(groundCheck.position, checkRadius, whatIsGround);
// This is the jumping method
if (Input.GetKeyDown("space") && (isGrounded == true))
{
rb.velocity = new Vector2(rb.velocity.x, (jumpsystem.middleness * 4f));
animator.SetBool("jumping", true);
}