Question

我的库存有问题。我使用一些Foldouts为Inspector编写了一个编辑器（使库存系统更具可读性）。我还有一个常量Int，它定义了我的库存槽数。问题是，当我更改const int时，Tto让我说6我从InventoryEditor类中得到多个错误。当const int为4或更小时，一切正常。但是，如果我将数字更改为更高的数字，我会收到如下错误：IndexOutOfRangeException，NullReferenceException等等（我把确切的日志放在问题的下面）。库存类应该没问题我很确定问题出在InventoryEditor类中。

以下是代码：

public class Inventory : MonoBehaviour {

    public const int itemNumCap = 6;

    [SerializeField]
    private Item[] items = new Item[itemNumCap];

    [SerializeField]
    private Image[] itemsImg = new Image[itemNumCap];

    public void AddItem(Item itemToAdd)
    {
        for (int i = 0; i < items.Length; i++)
        {
            if (items[i] == null)
            {
                items[i] = itemToAdd;
                itemsImg[i].sprite = itemToAdd.sprite;
                itemsImg[i].enabled = true;

                return;
            }
        }
    }

    public void RemoveItem(Item itemToRemove)
    {
        for (int i = 0; i < items.Length; i++)
        {
            if (items[i] == itemToRemove)
            {
                items[i] = null;
                itemsImg[i].sprite = null;
                itemsImg[i].enabled = false;

                return;
            }
        }
    }
}

和InventoyEditor：

[CustomEditor(typeof(Inventory))]
public class InventoryEditor : Editor
{
    private bool[] showItemSlots = new bool[Inventory.itemNumCap];

    private SerializedProperty itemImagesProperty;
    private SerializedProperty itemsProperty;

    private const string inventoryPropItemImagesName = "itemsImg";
    private const string inventoryPropItemsName = "items";

    private void OnEnable()
    {
        itemImagesProperty = serializedObject.FindProperty(inventoryPropItemImagesName);
        itemsProperty = serializedObject.FindProperty(inventoryPropItemsName);
    }
    public override void OnInspectorGUI()
    {
        serializedObject.Update();
        for (int i = 0; i < Inventory.itemNumCap; i++)
        {
            ItemSlotGUI(i);
        }
        serializedObject.ApplyModifiedProperties();
    }
    private void ItemSlotGUI(int index)
    {
        EditorGUILayout.BeginVertical(GUI.skin.box);
        EditorGUI.indentLevel++;

        showItemSlots[index] = EditorGUILayout.Foldout(showItemSlots[index], "Item slot " + index);
        if (showItemSlots[index])
        {

EditorGUILayout.PropertyField（itemImagesProperty.GetArrayElementAtIndex（索引））;

EditorGUILayout.PropertyField（itemsProperty.GetArrayElementAtIndex（索引））;

        }
        EditorGUI.indentLevel--;
        EditorGUILayout.EndVertical();
    }
}

我希望你们能以某种方式帮助我。

以下是错误日志：

IndexOutOfRangeException: Array Index is out of Range.
InventoryEditor.ItemSlotGUI (Int32 Index)

Retrieving Array Element thatw as out of bounds
UnityEditor.SerialziedProperty: GetArrayElementAtIndex (Int32)

NullReferenceException: Object reference not set to an Instance of an Object
UnityEditor.PropertyHandler.OnGUILayout(UnityEditor.SerializedProperty property, UnityEngine.GUIContent label, Boolean includeChildren, UnityEngine.GUILayoutOption[] options

这就是4＆＃34; Item Slots＆＃34;

的外观

UnityEditor Foldouts（库存系统）

0 个答案: