Fixed an issue where players could pick up items that had already been picked up by other creatures. Reuse floating label instances.

修复玩家能够捡起已被其他生物捡起的物品的问题。复用悬浮标签实例。

locals/Log.csv

@@ -73,3 +73,6 @@ log_chase_no_enemy,追逐没有敌人。,Chase no enemy.,敵がいない追跡
 log_bubble_not_found,找不到气泡{0}。,Bubble {0} not found.,バブル{0}が見つかりません。
 log_owner_is_not_AiCharacter,所有者不是AiCharacter。,Owner is not AiCharacter.,所有者はAiCharacterではありません。
 log_weaponContainer_is_null,武器容器为空。,Weapon container is null.,武器コンテナが空です。
+log_find_nearest_item,查找最近的物品。,Find the nearest item.,最も近いアイテムを見つけます。
+log_float_label_instantiate_failed,浮动标签实例化失败。,Float label instantiation failed.,フロートラベルのインスタンス化に失敗しました。
+log_pickable_picked_up,可拾捡物被捡起了，那么不显示标签。,"If the pickable item is picked up, the label is not displayed.",でも、拾得物が拾い上げられたら、ラベルは表示されません。

scripts/character/CharacterTemplate.cs

@@ -218,20 +218,14 @@ public partial class CharacterTemplate : CharacterBody2D
     /// <returns></returns>
     public Node2D? FindTheNearestItem()
     {
+        LogCat.Log("find_nearest_item");
         if (PickingRangeBodiesList == null || PickingRangeBodiesList.Count == 0)
         {
             return null;
         }
 
-        HashSet<Node>? exclude = null;
-        if (_currentItem != null)
-        {
-            //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);
+        return NodeUtils.GetTheNearestNode(this, PickingRangeBodiesList.ToArray(), true,
+            node => !CanPickItem(node));
     }
 
 
@@ -308,25 +302,53 @@ 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 +361,10 @@ public partial class CharacterTemplate : CharacterBody2D
             return false;
         }
 
-        //First check if we can pick up the item.
-        //先检查我们能否拾起此物品。
-        var canPick = ItemContainer.CanAddItem(item);
-        if (!canPick)
+        //Check to see if you can fit the item into the container first.
+        //先检查是否能将物品放入容器。
+        var canAddItem = ItemContainer.CanAddItem(item);
+        if (!canAddItem)
         {
             return false;
         }
@@ -359,7 +381,7 @@ 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 +396,16 @@ 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();
-            pickAbleItem.ProcessMode = ProcessModeEnum.Disabled;
+            pickAbleItemNode2D.Hide();
+            pickAbleItemNode2D.ProcessMode = ProcessModeEnum.Disabled;
         }
 
-        pickAbleItem.Reparent(ItemMarker2D);
-        pickAbleItem.Position = Vector2.Zero;
+        NodeUtils.CallDeferredReparent(ItemMarker2D, pickAbleItemNode2D);
+        pickAbleItemNode2D.Position = Vector2.Zero;
         return true;
     }
 

scripts/character/Player.cs

@@ -17,8 +17,6 @@ namespace ColdMint.scripts.character;
 /// </summary>
 public partial class Player : CharacterTemplate
 {
-    private PackedScene? _floatLabelPackedScene;
-
     private Control? _floatLabel;
 
     //Empty object projectile
@@ -52,7 +50,17 @@ public partial class Player : CharacterTemplate
         CharacterName = TranslationServerUtils.Translate("default_player_name");
         LogCat.LogWithFormat("player_spawn_debug", LogCat.LogLabel.Default, ReadOnlyCharacterName,
             GlobalPosition);
-        _floatLabelPackedScene = GD.Load<PackedScene>("res://prefab/ui/FloatLabel.tscn");
+        var floatLabelPackedScene = GD.Load<PackedScene>("res://prefab/ui/FloatLabel.tscn");
+        //Initializes the float label.
+        //初始化悬浮标签。
+        _floatLabel = NodeUtils.InstantiatePackedScene<Control>(floatLabelPackedScene);
+        if (_floatLabel == null)
+        {
+            throw new NullReferenceException(TranslationServer.Translate("float_label_instantiate_failed"));
+        }
+
+        _floatLabel.Hide();
+        NodeUtils.CallDeferredAddChild(this, _floatLabel);
         _parabola = GetNode<Line2D>("Parabola");
         _platformDetectionRayCast2D = GetNode<RayCast2D>("PlatformDetectionRayCast");
         UpdateOperationTip();
@@ -147,9 +155,8 @@ public partial class Player : CharacterTemplate
             operationTipBuilder.Append(TranslationServerUtils.Translate("action_jump_down"));
         }
 
-        //If the PickingRangeBodiesList is not null and the length is greater than 0
-        //如果PickingRangeBodiesList不是null，且长度大于0
-        if (PickingRangeBodiesList is { Count: > 0 })
+        var nearestItem = FindTheNearestItem();
+        if (nearestItem != null)
         {
             operationTipBuilder.Append(' ');
             operationTipBuilder.Append("[color=");
@@ -159,6 +166,11 @@ public partial class Player : CharacterTemplate
                 TranslationServerUtils.Translate(InputMap.ActionGetEvents("pick_up")[0].AsText()));
             operationTipBuilder.Append("[/color]");
             operationTipBuilder.Append(TranslationServerUtils.Translate("action_pick_up"));
+            if (nearestItem is IItem item)
+            {
+                operationTipBuilder.Append(item.Name);
+            }
+
             operationTipLabel.Text = operationTipBuilder.ToString();
         }
 
@@ -232,11 +244,7 @@ public partial class Player : CharacterTemplate
                     PickingRangeBodiesList?.Remove(pickAbleItem);
                 }
 
-                if (_floatLabel != null)
-                {
-                    _floatLabel.QueueFree();
-                    _floatLabel = null;
-                }
+                RecycleFloatLabel();
             }
         }
 
@@ -427,35 +435,41 @@ public partial class Player : CharacterTemplate
             return;
         }
 
-        if (_floatLabelPackedScene != null)
+        if (_floatLabel != null)
         {
-            //If there is a scene of floating text, then we generate floating text.
-            //如果有悬浮文本的场景，那么我们生成悬浮文本。
-            _floatLabel?.QueueFree();
-            _floatLabel = NodeUtils.InstantiatePackedScene<Control>(_floatLabelPackedScene);
-            if (_floatLabel != null)
+            if (node is not PickAbleTemplate pickAbleTemplate)
             {
-                NodeUtils.CallDeferredAddChild(node, _floatLabel);
-                var rotationDegreesNode2D = node2D.RotationDegrees;
-                var rotationDegreesNode2DAbs = Math.Abs(rotationDegreesNode2D);
-                _floatLabel.Position = rotationDegreesNode2DAbs > 90
-                    ? new Vector2(0, PromptTextDistance)
-                    : new Vector2(0, -PromptTextDistance);
-                _floatLabel.RotationDegrees = 0 - rotationDegreesNode2D;
-                var label = _floatLabel.GetNode<Label>("Label");
-                if (node is PickAbleTemplate pickAbleTemplate)
-                {
-                    var stringBuilder = new StringBuilder();
-                    if (pickAbleTemplate.Owner is CharacterTemplate characterTemplate)
-                    {
-                        stringBuilder.Append(characterTemplate.ReadOnlyCharacterName);
-                        stringBuilder.Append(TranslationServerUtils.Translate("de"));
-                    }
-
-                    stringBuilder.Append(TranslationServerUtils.Translate(pickAbleTemplate.Name));
-                    label.Text = stringBuilder.ToString();
-                }
+                return;
             }
+
+            if (pickAbleTemplate.Picked)
+            {
+                //If the pickables are picked up, the label is not displayed.
+                //如果可拾捡物被捡起了，那么不显示标签。
+                LogCat.LogWarning("pickable_picked_up");
+                return;
+            }
+
+            NodeUtils.CallDeferredReparent(node, _floatLabel);
+            var rotationDegreesNode2D = node2D.RotationDegrees;
+            var rotationDegreesNode2DAbs = Math.Abs(rotationDegreesNode2D);
+            _floatLabel.GlobalPosition = node2D.GlobalPosition;
+            _floatLabel.Position = rotationDegreesNode2DAbs > 90
+                ? new Vector2(0, PromptTextDistance)
+                : new Vector2(0, -PromptTextDistance);
+            _floatLabel.RotationDegrees = 0 - rotationDegreesNode2D;
+            var label = _floatLabel.GetNode<Label>("Label");
+
+            var stringBuilder = new StringBuilder();
+            if (pickAbleTemplate.Owner is CharacterTemplate characterTemplate)
+            {
+                stringBuilder.Append(characterTemplate.ReadOnlyCharacterName);
+                stringBuilder.Append(TranslationServerUtils.Translate("de"));
+            }
+
+            stringBuilder.Append(TranslationServerUtils.Translate(pickAbleTemplate.Name));
+            label.Text = stringBuilder.ToString();
+            _floatLabel.Show();
         }
 
         UpdateOperationTip();
@@ -469,13 +483,23 @@ public partial class Player : CharacterTemplate
             return;
         }
 
-        if (_floatLabel != null)
+        RecycleFloatLabel();
+        UpdateOperationTip();
+    }
+
+    /// <summary>
+    /// <para>Recycle Float Label</para>
+    /// <para>回收悬浮标签</para>
+    /// </summary>
+    private void RecycleFloatLabel()
+    {
+        if (_floatLabel == null)
         {
-            _floatLabel.QueueFree();
-            _floatLabel = null;
+            return;
         }
 
-        UpdateOperationTip();
+        _floatLabel.Hide();
+        NodeUtils.CallDeferredReparent(this, _floatLabel);
     }
 
     protected override void OnHit(DamageTemplate damageTemplate)

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,
-        bool excludeInvisibleNodes = true)
+    public static Node2D? GetTheNearestNode(Node2D origin, Node[] array,
+        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.
-                //如果当前节点，在我们的排除项目内。那么下一个。
+                //If there is a filter, and the filter returns true, then the next.
+                //如果有过滤器，且过滤器返回true，那么下一个。
                 continue;
             }