初次提交

Script/UI/BagItemUI.cs

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+using Godot;
+using System;
+namespace Cosmobox
+{
+    public partial class BagItemUI : Button
+    {
+        [Export] public TextureRect icon;
+        [Export] public Label count, itemName;
+        [Export] public Control itemNamePanel;
+        [Export] public Texture2D emptyIcon;
+
+        public override void _Ready()
+        {
+            itemNamePanel.Visible = false;
+        }
+
+        public void SetItem(BagItem bagItem)
+        {
+            if (bagItem == null || bagItem.itemResource == null)
+            {
+                SetEmpty();
+                return;
+            }
+            itemName.Text = bagItem.itemResource.ItemName;
+            icon.Texture = bagItem.itemResource.Icon ?? emptyIcon;
+            count.Text = bagItem.amount > 0 ? bagItem.amount.ToString() : "空";
+        }
+
+        public void SetEmpty()
+        {
+            icon.Texture = emptyIcon;
+            count.Text = "空";
+        }
+        void _on_mouse_entered()
+        {
+            itemNamePanel.Visible = true;
+            // GD.Print("鼠标进入");
+        }
+        void _on_mouse_exited()
+        {
+            itemNamePanel.Visible = false;
+        }
+    }
+
+}