unity 联网鼠标位置

Question

我正在关注 Unity 文档中的 this 教程，但想更改我的版本以向鼠标位置发射。主机工作正常，但在运行客户端时，子弹会朝着相对于主机客户端的鼠标位置发射（通常就在一边）。

这是我的代码：

public class PlayerMove : NetworkBehaviour {

    public GameObject bulletPrefab;

    // Use this for initialization
    void Start () {

    }

    // Update is called once per frame
    void Update () {

        if (!isLocalPlayer)
            return;

        var x = Input.GetAxis("Horizontal") * 0.1f;
        var z = Input.GetAxis("Vertical") * 0.1f;

        transform.Translate(x, 0, z);

        if (Input.GetMouseButtonDown(0))
        {
            CmdFire();
        }
    }

    public override void OnStartLocalPlayer()
    {
        GetComponent<MeshRenderer>().material.color = Color.red;
    }

    [Command]
    void CmdFire()
    {
        // create the bullet object from the bullet prefab

        // make the bullet move away in front of the player
        Vector2 target = Camera.main.ScreenToWorldPoint(new Vector2(Input.mousePosition.x, Input.mousePosition.y));
        Vector2 myPos = new Vector2(transform.position.x, transform.position.y + 1);
        Vector2 direction = target - myPos;
        GameObject projectile = (GameObject)Instantiate(bulletPrefab, myPos, transform.rotation);
        projectile.GetComponent<Rigidbody2D>().velocity = direction * 4f;

        // spawn the bullet on the clients
        NetworkServer.Spawn(projectile);

        // make bullet disappear after 2 seconds
        Destroy(projectile, 2.0f);
    }
}

我也尝试将“速度 = 方向”移动到新的项目符号脚本，但它总是执行相同的操作。

如果这是这里的解决方案，我如何使用“本地”鼠标位置？

Answer 1

如果您希望其他客户端看到客户端所看到的内容，您需要将客户端的方向、旋转和位置同步到所有其他客户端。

另外 - [Command] 仅在服务器上运行，您可能希望在连接到服务器的所有客户端上生成子弹，因此您应该从您的 [Command] 运行 [ClientRpc]

public class PlayerMove : NetworkBehaviour {

    public GameObject bulletPrefab;

    // Use this for initialization
    void Start () {

    }

    // Update is called once per frame
    void Update () {

        if (!isLocalPlayer)
            return;

        var x = Input.GetAxis("Horizontal") * 0.1f;
        var z = Input.GetAxis("Vertical") * 0.1f;

        transform.Translate(x, 0, z);

        if (Input.GetMouseButtonDown(0))
        {
            Fire();
        }
    }

    public override void OnStartLocalPlayer()
    {
        GetComponent<MeshRenderer>().material.color = Color.red;
    }

    void Fire()
    {
        Vector2 _target = Camera.main.ScreenToWorldPoint(new Vector2(Input.mousePosition.x, Input.mousePosition.y));
        Vector2 _myPos = new Vector2(transform.position.x, transform.position.y + 1);
        Vector2 _direction = _target - _myPos;
        Vector3 _rot = transform.rotation.eulerAngles;

        CmdFire(_myPos, _myDir, _rot);
    }

    [Command]
    void CmdFire(Vector2 _myPos, Vector2 _myDir, Vector3 _rot)
    {
        RpcFire(_myPos, _myDir, _rot);
    }

    [ClientRpc]
    void RpcFire(Vector2 _myPos, Vector2 _myDir, Vector3 _rot)
    {
         // create the bullet object from the bullet prefab

        // make the bullet move away in front of the player

        GameObject _projectile = (GameObject)Instantiate(bulletPrefab, _myPos, Quaternion.Euler(_rot);
        _projectile.GetComponent<Rigidbody2D>().velocity = direction * 4f;

        // spawn the bullet on the clients
        NetworkServer.Spawn(_projectile);

        // make bullet disappear after 2 seconds
        Destroy(_projectile, 2.0f);
    }
}