Fixed an issue where items could not be thrown.

修复无法扔出物品的问题。

scripts/character/CharacterTemplate.cs

@@ -61,7 +61,7 @@ public partial class CharacterTemplate : CharacterBody2D
     public Node2D? CurrentItem
     {
         get => _currentItem;
-        set
+        protected set
         {
             _currentItem = value;
             WhenUpdateCurrentItem(_currentItem);
@@ -332,7 +332,6 @@ public partial class CharacterTemplate : CharacterBody2D
             pickAbleTemplate.Sleeping = true;
         }
 
-        var selectItem = selectItemSlotNode.GetItem();
         if (_currentItem == null)
         {
             //If the selected item slot in the item container is a newly picked item, and there is no item in the hand, then we put the selected item into the hand.
@@ -664,8 +663,8 @@ public partial class CharacterTemplate : CharacterBody2D
     ///  </param>
     private void ThrowOneItem(ItemSlotNode itemSlotNode, Vector2 velocity)
     {
-        //Pick an item from the item container
-        //从物品容器内取出一个物品
+        //Remove the item from the item container
+        //从物品容器内取出物品
         var item = itemSlotNode.GetItem();
 
         if (item is not Node2D node2D)
@@ -717,6 +716,8 @@ public partial class CharacterTemplate : CharacterBody2D
                 rigidBody2D.LinearVelocity = velocity;
                 break;
         }
+
+        itemSlotNode.RemoveItem(1);
     }
 
     /// <summary>

scripts/inventory/HotBar.cs

@@ -19,6 +19,7 @@ public partial class HotBar : HBoxContainer
     {
         base._Ready();
         _itemContainer = new UniversalItemContainer();
+        _itemContainer.SupportSelect = true;
         _itemContainer.SelectedItemSlotChangeEvent += SelectedItemSlotChangeEvent;
         NodeUtils.DeleteAllChild(this);
         for (var i = 0; i < Config.HotBarSize; i++)

scripts/inventory/ItemSlotNode.cs

@@ -19,7 +19,18 @@ public partial class ItemSlotNode : MarginContainer
     private bool _isSelect;
     private Texture2D? _backgroundTexture;
     private Texture2D? _backgroundTextureWhenSelect;
-    private IItem? _item = null;
+    private IItem? _item;
+
+    public IItem? Item
+    {
+        set
+        {
+            //Set item
+            //设置物品
+            _item = value;
+            UpdateAllDisplay();
+        }
+    }
 
     public override void _Ready()
     {
@@ -79,6 +90,14 @@ public partial class ItemSlotNode : MarginContainer
         return _item == null;
     }
 
+    /// <summary>
+    /// <para>Get the items in the item container</para>
+    /// <para>获取物品容器内的物品</para>
+    /// </summary>
+    /// <returns>
+    ///<para>There may be multiple quantities</para>
+    ///<para>数量可能有多个</para>
+    /// </returns>
     public IItem? GetItem()
     {
         return _item;
@@ -100,15 +119,16 @@ public partial class ItemSlotNode : MarginContainer
         }
 
         var itemSlotNode = data.As<ItemSlotNode>();
-        var itemStack = itemSlotNode._item;
-        if (itemStack == null)
+        var item = itemSlotNode._item;
+        if (item == null)
         {
-            //Return null when trying to get the source item heap.
-            //尝试获取源物品堆时返回null。
+            //Return null when trying to get the source item.
+            //尝试获取源物品时返回null。
             return;
         }
 
-        // ReplaceItemStack(itemStack);
+        itemSlotNode.Item = null;
+        Item = item;
     }
 
     public bool IsSelect
@@ -275,6 +295,11 @@ public partial class ItemSlotNode : MarginContainer
         //实际移除的数量
         var removeNumber = number < 0 ? _item.Quantity : number;
         _item.Quantity -= removeNumber;
+        if (_item.Quantity <= 0)
+        {
+            Item = null;
+        }
+
         return removeNumber;
     }
 
@@ -282,7 +307,8 @@ public partial class ItemSlotNode : MarginContainer
     {
         if (_item == null)
         {
-            return false;
+            Item = item;
+            return true;
         }
 
         var newQuantity = item.Quantity + _item.Quantity;

scripts/inventory/UniversalItemContainer.cs

@@ -166,7 +166,15 @@ public class UniversalItemContainer : IItemContainer
             return null;
         }
 
-        itemSlotNode.IsSelect = (_itemSlotNodes.Count) == _selectIndex;
+        if (SupportSelect)
+        {
+            itemSlotNode.IsSelect = _itemSlotNodes.Count == _selectIndex;
+        }
+        else
+        {
+            itemSlotNode.IsSelect = false;
+        }
+
         _itemSlotNodes.Add(itemSlotNode);
         return itemSlotNode;
     }

scripts/pickable/PickAbleTemplate.cs

@@ -37,7 +37,7 @@ public partial class PickAbleTemplate : RigidBody2D, IItem
     [Export] private int _maxContactInjury = 2;
 
     public string? Description => UniqueDescription ?? ItemTypeManager.DefaultDescriptionOf(Id);
-    public int Quantity { get; set; }
+    public int Quantity { get; set; } = 1;
 
     /// <summary>
     /// <para>The number of tile maps that come into contact with this item</para>