How to stop movement?

Questions & Answers
1

The issue I’m having is after letting go of the movement keys the player continues to move/slide in the direction they were going the only solution I’ve found was to set my moveDirection variable which is a Vector3 to zero, but I feel like this isn’t an ideal way to do it, however, a lot of the common answers I’ve found related to this topic such as adjusting drag, using physics material, applying forces in the opposite direction haven’t worked.

I’m using a RigidBody and Capsule Collider it doesn’t have a physics material, it’s not kinematic and the drag is 0 which I think is just all default and that’s pretty much it.

Here is my movement code.

    void Update()
    {
        horizontal = Input.GetAxisRaw("Horizontal");
        vertical = Input.GetAxisRaw("Vertical");
        inputDirection = new Vector3(horizontal, 0, vertical).normalized;

        if (inputDirection.magnitude > 0)
        {
            float targetAngle = Mathf.Atan2(inputDirection.x, inputDirection.z) * Mathf.Rad2Deg + cam.eulerAngles.y; //basically moves in the correct direction the "+ cam.eulerAngles.y" is so it will move in the cameras direction as well
            float angle = Mathf.SmoothDampAngle(transform.eulerAngles.y, targetAngle, ref turnSmoothVelocity, turnSmoothTime); //makes the player turn smoothly
            transform.rotation = Quaternion.Euler(0f, angle, 0f); 
            moveDirection = (Quaternion.Euler(0f, targetAngle, 0f) * Vector3.forward).normalized; //new new move direction takes into account the camera's rotation
        }
        // else
        // {
        //     moveDirection = Vector3.zero;
        // }
    }

    void FixedUpdate()
    {
        //Debug.Log(transform.position + moveDirection * walkSpeed * Time.fixedDeltaTime);
        rigidBody.MovePosition(transform.position + moveDirection * walkSpeed * Time.fixedDeltaTime);
        rigidBody.AddForce(-transform.up * gravity, ForceMode.Acceleration); //gravity
    }
2

The issue is that you check if (inputDirection.magnitude > 0). When the player gives no input, moveDirection will stay the same since inputDirection.magnitude > 0 returns false. You can fix this by adding the else statement to the code.