Question

我有一个名为Player_Data的类，其中包含一个单例，该单例允许其他类轻松访问我的类中的Data，它们能够访问除数组以外的每个变量，尽管数组在创建过程中已初始化但始终返回空引用。单身人士。我在这里错过了关键代码吗？

我曾尝试在数组IE的初始化之前放置一个This / instance指示器：

this.current_equipment[] / instance.current_equipment[]

唯一不合理的解决方案是在player_Data类之外初始化数组

IE: player_Data.instance.current_Equipment[i] = new equipment();

//This is the code that runs first, everything in this class runs just fine

public class Player_Data
{

public static Player_Data instance;


//This is called from another method at the start of the application

public void Start()
    {
        if (instance != null)
        {
        Debug.Log("ERROR: MULTPILE INSTANCES OF Player OBJECT DETECTED");
        }
        instance = this;

        for (int i = 0; i < System.Enum.GetNames(typeof(EquipmentSlot)).Length; i++)
        {
        currentEquipment[i] = new Equipment();

        //This correctly returns the value, no errors
        Debug.Log(currentEquipment[i]);
        }

    }
}

//As soon as I try to Access the singleton through another class, I get the null Reference

public class Equipment_Manager : MonoBehaviour
{

    private void Start()
    {   

    Debug.Log(Player_Data.instance.currentEquipment[1]);

    }

}

这是通过运行此代码获得的错误

错误：

NullReferenceException：对象引用未设置为对象的实例 Equipment_Manager.Start（）（位于Assets / Code / Equipment_Manager.cs：41）

在此处链接到调试器映像 https://imgur.com/a/KSmovt2

空值引用与单例数组一起

0 个答案: