How do I make a 3d character only walk backwards?

Questions & Answers
1

All in the title really, how would I make a character in 3d that can only walk backwards? I can make it move forward and back but I need to just walk back. Here’s my code:

public class PlayerMove : MonoBehaviour
{
public Rigidbody rb;
public Transform _camera;

public float moveSpeed = 6f;

public LayerMask Ground;

void Start()
{
    
}

void Update()
{


    //facing direction
    Debug.DrawLine(_camera.position, transform.forward * 2.5f);

    //moving
    // float x = Input.GetAxisRaw("Horizontal") * moveSpeed;
    float y = Input.GetAxisRaw("Vertical") * moveSpeed;

    //setting movement
    
    Vector3 move = transform.forward * y; // transform.right * x + .....
    

    rb.velocity = new Vector3(move.x, rb.velocity.y,move.z);
}

}

e

2

Try Clamping y between 0 and -1.

It might work.