Init

scripts/data/ResourceCategoryManager.cs

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+using Godot;
+using System;
+using System.Collections.Generic;
+using System.Text.Json;
+
+public partial class ResourceCategoryManager : Node
+{
+    // 资源分类数据结构
+    public class ResourceCategory
+    {
+        public string CategoryName { get; set; }
+        public List<string> ItemIds { get; set; }
+    }
+
+    // 单例实例
+    private static ResourceCategoryManager instance;
+    public static ResourceCategoryManager Instance
+    {
+        get
+        {
+            return instance;
+        }
+    }
+
+    // 资源分类列表
+    private List<ResourceCategory> categories = new List<ResourceCategory>();
+
+    public override void _Ready()
+    {
+        GD.Print("ResourceCategoryManager _Ready 开始");
+        instance = this; // 设置单例实例
+        LoadResourceCategories();
+    }
+
+    // 从JSON文件加载资源分类配置
+    private void LoadResourceCategories()
+    {
+        try
+        {
+            string jsonPath = "res://data/config/resource_categories.json";
+            GD.Print($"尝试加载配置文件: {jsonPath}");
+            
+            if (!Godot.FileAccess.FileExists(jsonPath))
+            {
+                GD.PrintErr("资源分类配置文件不存在: " + jsonPath);
+                return;
+            }
+
+            var file = Godot.FileAccess.Open(jsonPath, Godot.FileAccess.ModeFlags.Read);
+            if (file == null)
+            {
+                GD.PrintErr("无法打开资源分类配置文件: " + jsonPath);
+                return;
+            }
+
+            string jsonContent = file.GetAsText();
+            file.Close();
+            
+            // GD.Print($"JSON文件内容长度: {jsonContent.Length}");
+            // GD.Print($"JSON文件内容: {jsonContent}");
+
+            // 解析JSON
+            var options = new JsonSerializerOptions
+            {
+                PropertyNameCaseInsensitive = true
+            };
+            
+            categories = JsonSerializer.Deserialize<List<ResourceCategory>>(jsonContent, options);
+            
+            if (categories == null)
+            {
+                GD.PrintErr("JSON反序列化结果为null");
+                categories = new List<ResourceCategory>();
+                return;
+            }
+            
+            GD.Print($"成功加载资源分类配置，共 {categories.Count} 个分类");
+            
+            // 打印每个分类的详细信息
+            foreach (var category in categories)
+            {
+                GD.Print($"分类: {category.CategoryName}, 物品数量: {category.ItemIds?.Count ?? 0}");
+                if (category.ItemIds != null)
+                {
+                    foreach (var itemId in category.ItemIds)
+                    {
+                        GD.Print($"  - {itemId}");
+                    }
+                }
+            }
+        }
+        catch (Exception e)
+        {
+            GD.PrintErr("加载资源分类配置时出错: " + e.Message);
+            GD.PrintErr("堆栈跟踪: " + e.StackTrace);
+        }
+    }
+
+    // 获取所有分类
+    public List<ResourceCategory> GetAllCategories()
+    {
+        GD.Print($"GetAllCategories 被调用，返回 {categories.Count} 个分类");
+        return categories;
+    }
+
+    // 根据分类名称获取分类
+    public ResourceCategory GetCategoryByName(string categoryName)
+    {
+        return categories.Find(c => c.CategoryName == categoryName);
+    }
+
+    // 根据物品ID获取所属分类
+    public ResourceCategory GetCategoryByItemId(string itemId)
+    {
+        return categories.Find(c => c.ItemIds.Contains(itemId));
+    }
+
+    // 获取指定分类的所有物品数据
+    public Dictionary<string, GameData.ItemData> GetItemsByCategory(string categoryName)
+    {
+        GD.Print($"GetItemsByCategory 被调用，分类名称: {categoryName}");
+        
+        var category = GetCategoryByName(categoryName);
+        if (category == null) 
+        {
+            GD.PrintErr($"未找到分类: {categoryName}");
+            return new Dictionary<string, GameData.ItemData>();
+        }
+
+        GD.Print($"找到分类 {categoryName}，包含 {category.ItemIds?.Count ?? 0} 个物品ID");
+
+        // 检查GameData.Instance
+        if (GameData.Instance == null)
+        {
+            GD.PrintErr("GameData.Instance 为 null！");
+            return new Dictionary<string, GameData.ItemData>();
+        }
+
+        var result = new Dictionary<string, GameData.ItemData>();
+        foreach (string itemId in category.ItemIds)
+        {
+            // GD.Print($"尝试获取物品: {itemId}");
+            var item = GameData.Instance.GetItem(itemId);
+            if (item != null)
+            {
+                GD.Print($"成功获取物品: {itemId} - {item.Name}");
+                result[itemId] = item;
+            }
+            else
+            {
+                GD.PrintErr($"未找到物品: {itemId}");
+            }
+        }
+        
+        GD.Print($"GetItemsByCategory 返回 {result.Count} 个物品");
+        return result;
+    }
+
+    // 获取分类名称列表
+    public List<string> GetCategoryNames()
+    {
+        var names = new List<string>();
+        foreach (var category in categories)
+        {
+            names.Add(category.CategoryName);
+        }
+        return names;
+    }
+}