Init

scripts/inventory/InventoryCategoryManager.cs

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+using Godot;
+using System.Collections.Generic;
+using System.Text.Json;
+
+public partial class InventoryCategoryManager : Node
+{
+    public static InventoryCategoryManager Instance { get; private set; }
+
+    public class InventoryCategory
+    {
+        public string CategoryName { get; set; }
+        public List<string> Items { get; set; } = new List<string>();
+    }
+
+    public class InventoryCategoryData
+    {
+        public List<InventoryCategory> Categories { get; set; } = new List<InventoryCategory>();
+    }
+
+    private InventoryCategoryData categoryData;
+    private Dictionary<string, InventoryCategory> categoryMap = new Dictionary<string, InventoryCategory>();
+
+    public override void _Ready()
+    {
+        if (Instance == null)
+        {
+            Instance = this;
+            LoadInventoryCategories();
+        }
+        else
+        {
+            QueueFree();
+        }
+    }
+
+    private void LoadInventoryCategories()
+    {
+        string configPath = "res://data/config/inventory_categories.json";
+        
+        if (!FileAccess.FileExists(configPath))
+        {
+            GD.PrintErr($"库存分类配置文件不存在: {configPath}");
+            return;
+        }
+
+        using var file = FileAccess.Open(configPath, FileAccess.ModeFlags.Read);
+        if (file == null)
+        {
+            GD.PrintErr($"无法打开库存分类配置文件: {configPath}");
+            return;
+        }
+
+        string jsonContent = file.GetAsText();
+        
+        try
+        {
+            var options = new JsonSerializerOptions
+            {
+                PropertyNameCaseInsensitive = true
+            };
+            
+            categoryData = JsonSerializer.Deserialize<InventoryCategoryData>(jsonContent, options);
+            
+            if (categoryData?.Categories != null)
+            {
+                // 构建分类映射
+                foreach (var category in categoryData.Categories)
+                {
+                    categoryMap[category.CategoryName] = category;
+                    GD.Print($"加载库存分类: {category.CategoryName}, 包含 {category.Items.Count} 个物品");
+                }
+                
+                GD.Print($"成功加载 {categoryData.Categories.Count} 个库存分类");
+            }
+        }
+        catch (JsonException e)
+        {
+            GD.PrintErr($"解析库存分类配置文件失败: {e.Message}");
+        }
+    }
+
+    public List<InventoryCategory> GetAllCategories()
+    {
+        return categoryData?.Categories ?? new List<InventoryCategory>();
+    }
+
+    public InventoryCategory GetCategory(string categoryName)
+    {
+        return categoryMap.GetValueOrDefault(categoryName);
+    }
+
+    public Dictionary<string, GameData.ItemData> GetItemsByCategory(string categoryName)
+    {
+        var result = new Dictionary<string, GameData.ItemData>();
+        var category = GetCategory(categoryName);
+        
+        if (category == null || GameData.Instance == null)
+        {
+            return result;
+        }
+
+        foreach (var itemId in category.Items)
+        {
+            var itemData = GameData.Instance.GetItem(itemId);
+            if (itemData != null)
+            {
+                result[itemId] = itemData;
+            }
+        }
+
+        return result;
+    }
+
+    public override void _ExitTree()
+    {
+        if (Instance == this)
+        {
+            Instance = null;
+        }
+    }
+}