我已经遵循了关于为统一的fps游戏制作控件的教程。 控制工作但如果我离开控件然后我继续向左移动

Question

enter image description here I have made controls for my character to move along the X axis. They seem to be working fine but my character keeps moving left and I'm not sure why or what I have missed.I have posted code from the two separate scripts

I have rechecked his code several times.I have checked to see if my arrow keys, numpad keys and WASD are sticking or any other.

using UnityEngine;

[RequireComponent(typeof(Rigidbody))]
public class PlayerMotor : MonoBehaviour
{
    private Vector3 velocity = Vector3.zero;

    private Rigidbody rb;

    void Start()
    {
        rb = GetComponent<Rigidbody>();
    }

    //gets a movement vector
    public void Move (Vector3 _velocity)
    {
        velocity = _velocity;
    }

    //run every physics iteration
    void FixedUpdate()
    {
        PerformMovement();
    }

    //perform movement based on velocity variable
    void PerformMovement ()
    {
        if (velocity != Vector3.zero)
        {
            rb.MovePosition(rb.position + velocity * Time.fixedDeltaTime);
        }

    }

}

And the controller:

using UnityEngine;

[RequireComponent(typeof(PlayerMotor))]
public class PlayerController : MonoBehaviour
{
    [SerializeField]                //makes speed show up in inspector even if set to private
    private float speed = 5f;


    private PlayerMotor motor;
    void Start ()
    {
        motor = GetComponent<PlayerMotor>();
    }

    void Update()
    {
        //Calculate movement velocity as a 3D vector
        float _xMov = Input.GetAxisRaw("Horizontal");
        float _zMov = Input.GetAxisRaw("Vertical");

        Vector3 _movHorizontal = transform.right * _xMov;
        Vector3 _movVertical = transform.forward * _zMov;


        //final movement vector
        Vector3 _velocity = (_movHorizontal + _movVertical).normalized * speed;

        //apply movement
        motor.Move(_velocity);

    }
}

I expect 0 output when not pressing buttons but it seems to make me move to the left at speed of 5

Answer 1

You have a controller connected and reporting a slight movement in one direction. Use Input.GetAxis instead of Input.GetAxisRaw to let Unity handle deadzone detection. This way, nearly neutral inputs will be treated as neutral inputs.

void Update()
{
    //Calculate movement velocity as a 3D vector
    float _xMov = Input.GetAxis("Horizontal");
    float _zMov = Input.GetAxis("Vertical");

    Vector3 _movHorizontal = transform.right * _xMov;
    Vector3 _movVertical = transform.forward * _zMov;


    //final movement vector
    Vector3 _velocity = (_movHorizontal + _movVertical).normalized * speed;

    //apply movement
    motor.Move(_velocity);

}