我遵循了关于在 Unity 上为 fps 游戏制作控件的教程.控件有效，但如果我离开控件，我会继续向左移动

Question

在此处输入图像描述我已经为我的角色制作了沿 X 轴移动的控件。他们似乎工作正常，但我的角色一直在向左移动，我不知道为什么或我错过了什么。我已经发布了两个单独脚本的代码

我已经多次重新检查了他的代码。我已经检查了我的箭头键，小键盘键和WASD是否粘住了或任何其他。

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);
        }
    }
}

控制器：

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);
    }
}

我希望在不按下按钮时输出 0，但它似乎让我以 5 的速度向左移动

Answer 1

您连接了一个控制器，并报告了一个方向的轻微移动。使用Input.GetAxis而不是Input.GetAxisRaw让 Unity 处理死区检测。这样，接近中性的输入将被视为中性输入。

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);
}