I’m trying to add a variable jump height to the Unity 3rd Person Controller Script but I can’t seem to figure out how.

I’d like the jump button to be nuanced such that the longer the button is held, the higher the player can jump. If anyone knows how this could be achieved by tweaking the Unity Asset Script, I’d be very grateful!

Code below:

private void JumpAndGravity()
{
    if (Grounded)
    {
       
        // reset the fall timeout timer
        _fallTimeoutDelta = FallTimeout;

        // update animator if using character
        if (_hasAnimator)
        {
            _animator.SetBool(_animIDJump, false);
           // _animator.SetBool(_animIDFreeFall, false);
        }

        // stop our velocity dropping infinitely when grounded
        if (_verticalVelocity < 0.0f)
        {
            _verticalVelocity = -2f;
        }

        // Jump
        if (_input.jump && _jumpTimeoutDelta <= 0.0f)
        {
            // the square root of H * -2 * G = how much velocity needed to reach desired height
            
            _verticalVelocity = Mathf.Sqrt(JumpHeight * -2f * Gravity);
              
            // update animator if using character
            if (_hasAnimator)
            {
                _animator.SetBool(_animIDJump, true);
            }
        }
        // jump timeout
        if (_jumpTimeoutDelta >= 0.0f)
        {
            _jumpTimeoutDelta -= Time.deltaTime;
        }
    }
    else
    {
        // reset the jump timeout timer
        _jumpTimeoutDelta = JumpTimeout;

        // fall timeout
        if (_fallTimeoutDelta >= 0.0f)
        {
            _fallTimeoutDelta -= Time.deltaTime;
        }
     

        // if we are not grounded, do not jump
       _input.jump = false;
         
    }

    // apply gravity over time if under terminal (multiply by delta time twice to linearly speed up over time)
    if (_verticalVelocity < _terminalVelocity)
    {
        _verticalVelocity += Gravity * Time.deltaTime;
    }
}