错误 CS0103：当前上下文中不存在名称“playfabManager”

Question

我刚开始使用 Unity，制作了一款名为 Flappy Duck 的小游戏。 我想要一个在线排行榜，这样每个人都可以击败彼此的高分。 我偶然发现了这个错误 Assets\scripts\PlayerController.cs(65,9): error CS0103: The name 'playfabManager' does not exist in the current context

我找不到任何问题。顺便说一句，我正在使用教程 来自 CoCo Code https://www.youtube.com/watch?v=e2RXDso6fWU&t=266s 他使用 playfab 我正在尝试 让它在我自己的游戏中工作。 这是使文本显示高分的脚本

using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class HighSScore : MonoBehaviour
{
    public Text HighScore;
    // Start is called before the first frame update
    void Start()
    {
        HighScore.text = PlayerPrefs.GetInt("highscore").ToString();
    }
}

这是 PLAYFAB 经理

using System.Collections.Generic;
using UnityEngine;
using PlayFab;
using PlayFab.ClientModels;

public class PlayFabManager : MonoBehaviour
{
    // Start is called before the first frame update
    void Start()
    {
        Login();   
    }
    void Login()
    {
        var request = new LoginWithCustomIDRequest
        {
            CustomId = SystemInfo.deviceUniqueIdentifier,
            CreateAccount = true
        };
        PlayFabClientAPI.LoginWithCustomID(request, OnSuccess, OnError);
    }
    
    void OnSuccess(LoginResult result)
    {
    Debug.Log("Successful login/account create!");
    }

    void OnError(PlayFabError error)
    {
    Debug.Log("Error while logging in/creating account!");
    Debug.Log(error.GenerateErrorReport());
    }
    public void SendLeaderboard(int score)  
    {
        var request = new UpdatePlayerStatisticsRequest
        {
            Statistics = new List<StatisticUpdate>
            {
                new StatisticUpdate
                {
                    StatisticName = "score",
                    Value = score
                }
            }
        };
        PlayFabClientAPI.UpdatePlayerStatistics(request, OnLeaderboardUpdate, OnError);
    }

    void OnLeaderboardUpdate(UpdatePlayerStatisticsResult result)
    {
        Debug.Log("succsessfull send leaderboard");
    }
}`

最后是播放器控制器 错误是否基于第 65 行 我正在尝试将高分发送到 playfab 中的排行榜。

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using TMPro;
using UnityEngine.SceneManagement;
using UnityEngine.UI;

public class PlayerController : MonoBehaviour
{
    [SerializeField] TextMeshProUGUI scoreText;
    Rigidbody2D bird;
    int score = 0;
    bool dead = false;
    int highscore = 0;


    // Start is called before the first frame update
    void Start()
    {
        bird = transform.GetComponent<Rigidbody2D>();
    }

    // Update is called once per frame
    public void update ()
    {
        if (Input.GetKeyDown("space") && !dead)
        {
            bird.velocity = new Vector2(0, 6f);
        }
        if (Input.GetKeyDown("r"))
        {
            SceneManager.LoadSceneAsync(SceneManager.GetActiveScene().buildIndex);
        }
        if (score > highscore)
        {
            highscore = score;
            SendLeaderboard();
            PlayerPrefs.SetInt("highscore", score);
        }
    }
    void OnCollisionEnter2D()
    {
        dead = true;
        score = 0;
        scoreText.text = "0";
    }
    void OnTriggerExit2D(Collider2D col)
    {
        if (col.gameObject.tag == "PointTrigger")
        {
            score++;
            scoreText.text = score.ToString();
        }
    }
    void OnTriggerExit(Collider col)
    {
        if (col.gameObject.tag == "PointTrigger")
        {
            score++;
            scoreText.text = score.ToString();
        }
    }
    public void SendLeaderboard()
    {
        playfabManager.SendLeaderboard(highscore);
    }
}

我希望有人可以帮助我。

Answer 1

很可能在PlayerController 你想要一个

[SerializeField] private PlayFabManager playfabManager;

并通过 Inspector 或在运行时通过例如引用它

private void Awake ()
{
    // Try and get the component if it is attached to the same object as this
    if(! playfabManager) playfabManager = GetComponent<PlayFabManager>();

    // Or try and find it anywhere in the scene
    if(! playfabManager) playfabManager = FindObjectOfType<PlayFabManager>();

    // Or simply create and attach it to the same object as this one
    if(! playfabManager) playfabManager = gameObject.AddComponent<PlayFabManager>();
} 

---

或者 - 在我看来，这将是更正确的解决方案 - PlayerFabManager 应该不完全是 MonoBehaviour，而是简单地做

public class PlayFabManager
{
    public void Login()
    {
        ...  
    }

    ...
}

而在PlayerController 你宁愿这样做

private readonly PlayFabManager playfabManager = new PlayFabManager();

private void Start ()
{
    playfabManager.Login();
}