添加工具，优化配置

unity/Assets/Editor/YSortBatchAdder.cs

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+using UnityEngine;
+using UnityEditor;
+using System.IO;
+
+/// <summary>
+/// Y-Sort 批量添加工具
+/// 
+/// 使用方法：
+/// 1. 在Unity菜单栏点击 Tools -> Y-Sort -> 批量添加YSorter
+/// 2. 会自动给Player、Enemy和所有场景预制体添加YSorter组件
+/// 3. 根据物体类型自动设置baseSortingOrder
+/// </summary>
+public class YSortBatchAdder : Editor
+{
+    [MenuItem("Tools/Y-Sort/批量添加YSorter到所有预制体")]
+    public static void AddYSorterToAllPrefabs()
+    {
+        string prefabFolder = "Assets/2.5D Engine/Prefabs";
+        
+        if (!Directory.Exists(prefabFolder))
+        {
+            Debug.LogError($"找不到预制体文件夹: {prefabFolder}");
+            return;
+        }
+
+        string[] prefabPaths = Directory.GetFiles(prefabFolder, "*.prefab", SearchOption.AllDirectories);
+        int count = 0;
+
+        foreach (string path in prefabPaths)
+        {
+            string normalizedPath = path.Replace("\\", "/");
+            GameObject prefab = AssetDatabase.LoadAssetAtPath<GameObject>(normalizedPath);
+            
+            if (prefab == null) continue;
+
+            // 检查是否已经有YSorter
+            if (prefab.GetComponentInChildren<YSorter>() != null)
+            {
+                Debug.Log($"跳过 {prefab.name} - 已有YSorter");
+                continue;
+            }
+
+            // 根据预制体名称判断类型并设置baseSortingOrder
+            int baseOrder = DetermineBaseOrder(prefab.name);
+
+            // 添加到根物体
+            AddYSorterToPrefab(prefab, baseOrder);
+            count++;
+            
+            Debug.Log($"已添加 YSorter 到 {prefab.name} (baseSortingOrder: {baseOrder})");
+        }
+
+        AssetDatabase.SaveAssets();
+        AssetDatabase.Refresh();
+        
+        Debug.Log($"完成！共添加了 {count} 个YSorter");
+    }
+
+    [MenuItem("Tools/Y-Sort/添加YSorter到Player")]
+    public static void AddYSorterToPlayer()
+    {
+        string playerPath = "Assets/2.5D Engine/Player.prefab";
+        GameObject player = AssetDatabase.LoadAssetAtPath<GameObject>(playerPath);
+        
+        if (player == null)
+        {
+            Debug.LogError($"找不到Player预制体: {playerPath}");
+            return;
+        }
+
+        AddYSorterToPrefab(player, 2000); // 角色层
+        AssetDatabase.SaveAssets();
+        Debug.Log("已添加YSorter到Player (baseSortingOrder: 2000)");
+    }
+
+    [MenuItem("Tools/Y-Sort/添加YSorter到Enemy")]
+    public static void AddYSorterToEnemy()
+    {
+        string enemyPath = "Assets/2.5D Engine/Enemy.prefab";
+        GameObject enemy = AssetDatabase.LoadAssetAtPath<GameObject>(enemyPath);
+        
+        if (enemy == null)
+        {
+            Debug.LogError($"找不到Enemy预制体: {enemyPath}");
+            return;
+        }
+
+        AddYSorterToPrefab(enemy, 2000); // 角色层
+        AssetDatabase.SaveAssets();
+        Debug.Log("已添加YSorter到Enemy (baseSortingOrder: 2000)");
+    }
+
+    private static int DetermineBaseOrder(string prefabName)
+    {
+        string nameLower = prefabName.ToLower();
+
+        // 地面/地板类
+        if (nameLower.Contains("ground") || nameLower.Contains("floor"))
+            return 0;
+
+        // 阴影类
+        if (nameLower.Contains("shadow"))
+            return 500;
+
+        // 草、花、叶子等小物件
+        if (nameLower.Contains("grass") || nameLower.Contains("flower") || 
+            nameLower.Contains("leaf") || nameLower.Contains("leaves"))
+            return 800;
+
+        // 场景道具（树、石头、箱子、桶等）
+        if (nameLower.Contains("rock") || nameLower.Contains("bamboo") || 
+            nameLower.Contains("barrel") || nameLower.Contains("box") ||
+            nameLower.Contains("log") || nameLower.Contains("board") ||
+            nameLower.Contains("bush") || nameLower.Contains("bonfire") ||
+            nameLower.Contains("candle") || nameLower.Contains("carcasses") ||
+            nameLower.Contains("lotus") || nameLower.Contains("pedestal") ||
+            nameLower.Contains("scarecrow") || nameLower.Contains("skeleton") ||
+            nameLower.Contains("skull") || nameLower.Contains("spear") ||
+            nameLower.Contains("statue") || nameLower.Contains("tent") ||
+            nameLower.Contains("tenticles") || nameLower.Contains("wooden") ||
+            nameLower.Contains("bag") || nameLower.Contains("house"))
+            return 1000;
+
+        // 默认
+        return 1000;
+    }
+
+    private static void AddYSorterToPrefab(GameObject prefab, int baseSortingOrder)
+    {
+        // 使用PrefabUtility打开预制体进行编辑
+        string prefabPath = AssetDatabase.GetAssetPath(prefab);
+        GameObject prefabRoot = PrefabUtility.LoadPrefabContents(prefabPath);
+
+        // 添加YSorter组件到根物体
+        YSorter ySorter = prefabRoot.AddComponent<YSorter>();
+        
+        // 通过SerializedObject设置baseSortingOrder
+        SerializedObject so = new SerializedObject(ySorter);
+        SerializedProperty baseOrderProp = so.FindProperty("baseSortingOrder");
+        if (baseOrderProp != null)
+        {
+            baseOrderProp.intValue = baseSortingOrder;
+            so.ApplyModifiedProperties();
+        }
+
+        // 保存预制体
+        PrefabUtility.SaveAsPrefabAsset(prefabRoot, prefabPath);
+        PrefabUtility.UnloadPrefabContents(prefabRoot);
+    }
+}