完善背包系统，已验证无问题

Assets/Scripts/BeiBao/BeiBaoTest.cs

@@ -26,14 +26,14 @@ namespace BeiBao
                 Item manaPotion = new Item("Mana Potion", 2, 5);
 
                 // 添加物品到背包
-                inventory.AddItem(healthPotion, 15); // 添加 15 个 Health Potion
+                inventory.AddItem(healthPotion, 15, out var count); // 添加 15 个 Health Potion
-                inventory.AddItem(manaPotion, 7); // 添加 7 个 Mana Potion
+                inventory.AddItem(manaPotion, 7, out var count1); // 添加 7 个 Mana Potion
             }
 
             if (Input.GetKeyDown(KeyCode.D))
             {
                 // 从背包中取出物品
-                inventory.RemoveItem(1, 5);
+                inventory.RemoveItem(1, 5, out var count);
                 Debug.Log("取出 5 个 Health Potion");
             }
 

Assets/Scripts/BeiBao/Inventory.cs

@@ -17,6 +17,10 @@ namespace BeiBao
 
         private List<InventorySlot> slots;
 
+        public IReadOnlyList<InventorySlot> Slots => slots;
+
+        public Action<IReadOnlyList<InventorySlot>> RefreshInventorySlot;
+
         public Inventory(int slotCount)
         {
             _slotCount = slotCount;
@@ -28,7 +32,7 @@ namespace BeiBao
         }
 
         // 向背包中添加物品
-        public bool AddItem(Item item, int quantity)
+        public bool AddItem(Item item, int quantity, out int restCount)
         {
             int remainingQuantity = quantity;
             int tmpQuantity = quantity;
@@ -37,29 +41,32 @@ namespace BeiBao
             {
                 if (remainingQuantity == 0) break;
 
-                var tmpItem = new Item(item.ItemName, item.ItemID, item.MaxStack);
 
                 if (slot.IsEmpty)
                 {
+                    var tmpItem = new Item(item.ItemName, item.ItemID, item.MaxStack);
                     // 如果格子为空，直接放入物品
                     remainingQuantity = tmpItem.CheckAddQuantity(remainingQuantity);
                     slot.AddItem(tmpItem, tmpQuantity - remainingQuantity);
                 }
-                else if (slot.Item.ItemID == tmpItem.ItemID && slot.Item.Quantity < slot.Item.MaxStack)
+                else if (slot.Item.ItemID == item.ItemID && slot.Item.Quantity < slot.Item.MaxStack)
                 {
                     // 如果格子内物品与新物品相同，并且未满堆叠，堆叠物品
                     remainingQuantity = slot.Item.CheckAddQuantity(remainingQuantity);
+                    slot.Item.AddQuantity(tmpQuantity - remainingQuantity);
                 }
 
                 tmpQuantity = remainingQuantity;
             }
 
             Debug.Log($"向背包中添加{item.ItemName} 数量为：{quantity}");
+            RefreshInventorySlot?.Invoke(Slots);
+            restCount = remainingQuantity;
             return remainingQuantity == 0;
         }
 
         // 从背包中取出物品
-        public bool RemoveItem(int itemID, int quantity)
+        public bool RemoveItem(int itemID, int quantity, out int restCount)
         {
             int remainingQuantity = quantity;
             int tmpQuantity = quantity;
@@ -78,6 +85,8 @@ namespace BeiBao
             }
 
             Debug.Log($"向背包中取出物品id{itemID} 数量为：{quantity}");
+            RefreshInventorySlot?.Invoke(Slots);
+            restCount = remainingQuantity;
             return remainingQuantity == 0;
         }
 

Assets/Scripts/BeiBao/View.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 783ae3de0c1a4fb5a05e42cb5c5cc12a
+timeCreated: 1739409274

Assets/Scripts/BeiBao/View/BeiBaoItem.cs

@@ -0,0 +1,28 @@
+using UnityEngine;
+using UnityEngine.UI;
+
+namespace BeiBao.View
+{
+    public class BeiBaoItem : MonoBehaviour
+    {
+        public Text NameText;
+        public Text CountText;
+
+        InventorySlot inventorySlot;
+
+        public void Refresh(InventorySlot slot)
+        {
+            inventorySlot = slot;
+            if (!inventorySlot.IsEmpty)
+            {
+                NameText.text = inventorySlot.Item.ItemName;
+                CountText.text = inventorySlot.Item.Quantity.ToString();
+            }
+            else
+            {
+                NameText.text = "";
+                CountText.text = "";
+            }
+        }
+    }
+}

Assets/Scripts/BeiBao/View/BeiBaoItem.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 35befefca49d4db38a8c0f9c03e50c09
+timeCreated: 1739411115

Assets/Scripts/BeiBao/View/BeiBaoView.cs

@@ -0,0 +1,70 @@
+using System;
+using System.Collections.Generic;
+using TMPro;
+using UnityEngine;
+using UnityEngine.UI;
+
+namespace BeiBao.View
+{
+    public class BeiBaoView : MonoBehaviour
+    {
+        public TMP_InputField nameText;
+        public TMP_InputField idText;
+        public TMP_InputField countText;
+        public Button Add;
+        public GameObject itemPfb;
+
+        Inventory inventory;
+        List<BeiBaoItem> items = new List<BeiBaoItem>();
+
+        private void Awake()
+        {
+            inventory = new Inventory(5);
+            for (var i = 0; i < inventory.SlotCount; i++)
+            {
+                var instantiate = GameObject.Instantiate(itemPfb, itemPfb.transform.parent);
+                instantiate.gameObject.SetActive(true);
+                var beiBaoItem = instantiate.GetComponent<BeiBaoItem>();
+                beiBaoItem.Refresh(inventory.Slots[i]);
+                items.Add(beiBaoItem);
+            }
+
+            inventory.RefreshInventorySlot += Refresh;
+            Add.onClick.AddListener(ClickAdd);
+        }
+
+        private void ClickAdd()
+        {
+            var count = int.Parse(countText.text);
+            var id = int.Parse(idText.text);
+            if (count > 0)
+            {
+                // 创建物品
+                Item healthPotion = new Item(nameText.text, id, 99);
+
+                // 添加物品到背包
+                var b = inventory.AddItem(healthPotion, count, out var restCount);
+                if (!b)
+                {
+                    Debug.Log($"添加失败！还有 {restCount} 个 {healthPotion.ItemName} 未添加，背包没位置放了，放不了一点");
+                }
+            }
+            else if (count < 0)
+            {
+                var b = inventory.RemoveItem(id, Mathf.Abs(count),out var restCount);
+                if (!b)
+                {
+                    Debug.Log($"取出失败！还有 {restCount} 个 {id} 未取出，背包没有东西了，取不了一点");
+                }
+            }
+        }
+
+        void Refresh(IReadOnlyList<InventorySlot> slot)
+        {
+            for (var i = 0; i < slot.Count; i++)
+            {
+                items[i].Refresh(slot[i]);
+            }
+        }
+    }
+}

Assets/Scripts/BeiBao/View/BeiBaoView.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 66f950345dea479694e2bd2cc08f1f94
+timeCreated: 1739409306