godot-------/Script/Base/ItemResourceManager.cs

using Godot;
using System;
using System.Collections.Generic;
namespace Cosmobox
{
    public static class ItemResourceManager
    {
        private static Dictionary<string, ItemResource> _items;
        private static bool _initialized = false;

        // 初始化物品数据
        private static void Initialize()
        {
            if (_initialized) return;

            _items = new Dictionary<string, ItemResource>();

            // 加载 res://Resource/Item/ 目录下的所有 ItemResource
            var dir = DirAccess.Open("res://Resource/Item/");
            if (dir != null)
            {
                dir.ListDirBegin();
                string fileName = dir.GetNext();
                while (fileName != "")
                {
                    if (!dir.CurrentIsDir() && fileName.EndsWith(".tres"))
                    {
                        var resourcePath = $"res://Resource/Item/{fileName}";
                        var item = GD.Load<ItemResource>(resourcePath);
                        if (item != null)
                        {
                            _items[item.ItemName] = item;
                        }
                    }
                    fileName = dir.GetNext();
                }
            }

            _initialized = true;
        }

        // 获取所有物品
        public static Dictionary<string, ItemResource> GetAllItems()
        {
            Initialize();
            return _items;
        }

        // 通过名称获取物品
        public static ItemResource GetItem(string itemName)
        {
            Initialize();
            if (_items.TryGetValue(itemName, out var item))
            {
                return item;
            }
            return null;
        }

        // 获取物品数量
        public static int GetItemCount()
        {
            Initialize();
            return _items.Count;
        }
    }
}