临时保存

scripts/character/CharacterTemplate.cs

@@ -223,15 +223,8 @@ public partial class CharacterTemplate : CharacterBody2D
             return null;
         }
 
-        HashSet<Node>? exclude = null;
+        return NodeUtils.GetTheNearestNode(this, PickingRangeBodiesList.ToArray(), true,
-        if (_currentItem != null)
+            node => !CanPickItem(node));
-        {
-            //Prevent picking up objects in your hands again.
-            //防止再次捡起自己手上的物品。
-            exclude = new HashSet<Node> { _currentItem };
-        }
-
-        return NodeUtils.GetTheNearestNode(this, PickingRangeBodiesList.ToArray(), exclude);
     }
 
 
@@ -308,25 +301,53 @@ public partial class CharacterTemplate : CharacterBody2D
         }
     }
 
+    /// <summary>
+    /// <para>Whether you can pick up specified items</para>
+    /// <para>是否能捡起指定物品</para>
+    /// </summary>
+    /// <param name="node"></param>
+    /// <returns></returns>
+    private bool CanPickItem(Node node)
+    {
+        if (_currentItem != null && node == _currentItem)
+        {
+            //Do not include your own belongings.
+            //不包含自己手上的物品。
+            return false;
+        }
+
+        if (node is PickAbleTemplate pickAbleTemplate)
+        {
+            //Does not contain items that have been picked up.
+            //不包含已被捡起的物品。
+            return !pickAbleTemplate.Picked;
+        }
+
+        return false;
+    }
+
     /// <summary>
     /// <para>Pick up the specified items</para>
     /// <para>将指定物品拾起来</para>
     /// </summary>
-    /// <param name="pickAbleItem"></param>
+    /// <param name="pickAbleItemNode2D"></param>
     /// <returns>
     ///<para>Whether successfully picked up</para>
     ///<para>是否成功拾起</para>
     /// </returns>
-    public bool PickItem(Node2D? pickAbleItem)
+    protected bool PickItem(Node2D? pickAbleItemNode2D)
     {
         //Empty reference checking is implicitly performed here.
         //此处隐式的执行了空引用检查。
-        if (pickAbleItem is not IItem item)
+        if (pickAbleItemNode2D is not IItem item)
         {
             return false;
         }
 
-        if (ItemContainer == null)
+
+        //The item store is marked null, or the item container is null.
+        //物品存放的标记为null，或者物品容器为null。
+        if (ItemMarker2D == null || ItemContainer == null)
         {
             return false;
         }
@@ -339,10 +360,10 @@ public partial class CharacterTemplate : CharacterBody2D
             return false;
         }
 
-        //First check if we can pick up the item.
+        //Check to see if you can fit the item into the container first.
-        //先检查我们能否拾起此物品。
+        //先检查是否能将物品放入容器。
-        var canPick = ItemContainer.CanAddItem(item);
+        var canAddItem = ItemContainer.CanAddItem(item);
-        if (!canPick)
+        if (!canAddItem)
         {
             return false;
         }
@@ -359,7 +380,7 @@ public partial class CharacterTemplate : CharacterBody2D
         //设置捡起物品的常规处理。
         //You can supplement picking up state handling for more types of objects here.
         //您可以在这里补充更多类型对象的捡起状态处理。
-        if (pickAbleItem is PickAbleTemplate pickAbleTemplate)
+        if (pickAbleItemNode2D is PickAbleTemplate pickAbleTemplate)
         {
             pickAbleTemplate.Owner = this;
             pickAbleTemplate.Picked = true;
@@ -374,16 +395,16 @@ public partial class CharacterTemplate : CharacterBody2D
         {
             //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.
             //如果物品容器内选中的物品槽是刚刚捡到的物品，且手里没有物品持有，那么我们将选中的物品放到手上。
-            CurrentItem = pickAbleItem;
+            CurrentItem = pickAbleItemNode2D;
         }
         else
         {
-            pickAbleItem.Hide();
+            pickAbleItemNode2D.Hide();
-            pickAbleItem.ProcessMode = ProcessModeEnum.Disabled;
+            pickAbleItemNode2D.ProcessMode = ProcessModeEnum.Disabled;
         }
 
-        pickAbleItem.Reparent(ItemMarker2D);
+        NodeUtils.CallDeferredReparent(ItemMarker2D, pickAbleItemNode2D);
-        pickAbleItem.Position = Vector2.Zero;
+        pickAbleItemNode2D.Position = Vector2.Zero;
         return true;
     }
 

scripts/utils/NodeUtils.cs

@@ -175,17 +175,17 @@ public static class NodeUtils
     ///<para>Node array</para>
     ///<para>节点数组</para>
     /// </param>
-    /// <param name="exclude">
-    ///<para>Which nodes are excluded</para>
-    ///<para>排除哪些节点</para>
-    /// </param>
     /// <param name="excludeInvisibleNodes">
     ///<para>Whether or not unseen nodes should be excluded</para>
     ///<para>是否排除不可见的节点</para>
     /// </param>
+    /// <param name="filter">
+    ///<para>Filter, which returns true within the function to filter the specified node.</para>
+    ///<para>过滤器，在函数内返回true，则过滤指定节点。</para>
+    /// </param>
     /// <returns></returns>
-    public static Node2D? GetTheNearestNode(Node2D origin, Node[] array, HashSet<Node>? exclude = null,
+    public static Node2D? GetTheNearestNode(Node2D origin, Node[] array,
-        bool excludeInvisibleNodes = true)
+        bool excludeInvisibleNodes = true, Func<Node2D, bool>? filter = null)
     {
         var closestDistance = float.MaxValue;
         Node2D? closestNode = null;
@@ -199,10 +199,10 @@ public static class NodeUtils
                 continue;
             }
 
-            if (exclude != null && exclude.Contains(node))
+            if (filter != null && filter.Invoke(node2D))
             {
-                //If the current node, is within our exclusion project. So the next one.
+                //If there is a filter, and the filter returns true, then the next.
-                //如果当前节点，在我们的排除项目内。那么下一个。
+                //如果有过滤器，且过滤器返回true，那么下一个。
                 continue;
             }