我在 Unity 中执行保存和加载功能，我正在关注互联网上的一个教程，一切正常，除了保存我的库存。所以我有一个 ItemSlot 的脚本，它在创建时设置为库存中的 ItemSlot，这个 ItemSlot 有里面的项目，然后计算有多少项目，我在 PlayerData 脚本中创建了这些 ItemSlot 的数组。我将在调用它的行中放一些代码（所以当玩家保存游戏然后它实际上保存游戏等），一切都在 GameManager 中开始：
if(Input.GetKeyDown(KeyCode.F6)) {
Save();
}
if(Input.GetKeyDown(KeyCode.F7)) {
Load();
}
保存和加载功能：
//Function that Save our Game progress
public void Save() {
//Call Save Function
SaveAndLoad.Save(health, sprinting, InvUI);
}
//Load the Game Progress
public void Load() {
//create PlayerData variable and set it to what Load return
PlayerData data = SaveAndLoad.Load();
//set variables to Health
health.health = data.Health;
health.maxHealth = data.MaxHealth;
//set variables to Sprinting
sprinting.Stamina = data.Stamina;
sprinting.MaxStamina = data.MaxStamina;
sprinting.MovementSpeedWhileSprinting = data.MovementSpeedWhileSprinting;
sprinting.MovementSpeedWhileWalking = data.MovementSpeedWhileWalking;
sprinting.StaminaDownWhileSprinting = data.StaminaDownWhileSprinting;
sprinting.StaminaAddWhileSprinting = data.StaminaAddWhileSprinting;
//set variables to Inventory
Inventory.instance.InvUI.itemSlotList.Clear();
for(int i = 0; i < data.InventorySlots.Length; i++) {
Inventory.instance.InvUI.itemSlotList.Add(data.InventorySlots[i]);
}
}
SaveAndLoad 中的保存函数：
public static void Save(Health health, Sprinting sprinting, InventoryUI InvUI) {
BinaryFormatter ThatSavyThingy = new BinaryFormatter();
string path = Application.persistentDataPath + "/player.AutoBox";
FileStream streamyThingy = new FileStream(path, FileMode.CreateNew);
PlayerData Data = new PlayerData(health, sprinting, InvUI);
ThatSavyThingy.Serialize(streamyThingy, Data);
streamyThingy.Close();
}
然后是 PlayerData：
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
[System.Serializable]
public class PlayerData {
//make some variables to make things better
public InventoryUI InvUI;
//variables from Health
public float Health;
public float MaxHealth;
//variables from Sprinting
public float Stamina;
public float MaxStamina;
public float MovementSpeedWhileSprinting;
public float MovementSpeedWhileWalking;
public float StaminaDownWhileSprinting;
public float StaminaAddWhileSprinting;
//variables from Inventory
public ItemSlot[] InventorySlots;
//Constructor
public PlayerData(Health health, Sprinting sprinting, InventoryUI InvUI) {
Health = health.health;
MaxHealth = health.maxHealth;
Stamina = sprinting.Stamina;
MaxStamina = sprinting.MaxStamina;
MovementSpeedWhileSprinting = sprinting.MovementSpeedWhileSprinting;
MovementSpeedWhileWalking = sprinting.MovementSpeedWhileWalking;
StaminaDownWhileSprinting = sprinting.StaminaDownWhileSprinting;
StaminaAddWhileSprinting = sprinting.StaminaAddWhileSprinting;
this.InvUI = InvUI;
SaveInventory();
}
public void SaveInventory() {
for(int i = 0; i < InvUI.itemSlotList.Count; i++) {
InventorySlots[i] = InvUI.LoopThroughItemSlots(); //the error is on this line
}
}
}
最后是 LoopThroughItemSlots 函数：
public ItemSlot LoopThroughItemSlots() {
foreach(ItemSlot slot in itemSlotList) {
return slot;
break;
}
return null;
}
我确实尝试过任何东西，我尝试循环遍历 itemSlotList，然后将该插槽分配给 InventorySlots 数组，我尝试通过其他方式，我尝试询问我的朋友，这也是 SaveInventory 函数内的行上的错误消息在播放器数据中：
Object reference not set to an instance of an object
我会很高兴得到任何帮助，因为我在过去 2 天里一直在尝试解决这个问题，但我无法解决这个问题（其他所有东西都在保存，比如 Health、MaxHealth 等，只是 ItemSlot 数组不能保存），我希望堆栈溢出不会关闭这个问题，因为每次它都会这样做，当我在这里查看其他问题时，它们不起作用