使用EditorScript创建预制体变体

如何使用友元进行Unity内部API访问的方法,可以看我在这个UnityToolchainsTrick中写的教程

我也非常推荐UnityToolchainsTrick库,很多大佬分享了不少编辑器方面的知识

//Create: Icarus
//ヾ(•ω•`)o
//2022-03-14 01:31
//Unity.InternalAPIEngineBridge.024

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using UnityEditor;
using UnityEngine;

namespace CabinIcarus.EditorFrame.UnityBind
{
    public static class PrefabUtilityHelp
    {
        /// <summary>
        /// 创建预制体变体
        /// UnityCsReference\Editor\Mono\ProjectWindow\ProjectWindowUtil.cs
        /// </summary>
        /// <param name="gameObjects"></param>
        /// <returns></returns>
        public static GameObject[] CreatePrefabVariants(params GameObject[] gameObjects)
        {
            if (gameObjects == null)
                return null;

            foreach (var go in gameObjects)
            {
                if (go == null || !EditorUtility.IsPersistent(go))
                    return null;
            }

            var createdVariants = new List<GameObject>();
            foreach (var go in gameObjects)
            {
                string sourcePath  = AssetDatabase.GetAssetPath(go);
                string sourceDir   = Path.GetDirectoryName(sourcePath).Replace('\\', '/');
                string variantPath = GetPrefabVariantPath(sourceDir, go.name);
                variantPath = AssetDatabase.GenerateUniqueAssetPath(variantPath);
                
                var variant = PrefabUtilityHelp.CreateVariant(go, variantPath);

                if (variant != null)
                    createdVariants.Add(variant);
            }

            if (createdVariants.Count > 0)
            {
                Selection.objects = createdVariants.ToArray();
                ProjectWindowUtil.FrameObjectInProjectWindow(createdVariants.Last().GetInstanceID());
            }

            return createdVariants.ToArray();
        }
        
        static string GetPrefabVariantPath(string folder, string gameObjectName)
        {
            return string.Format("{0}/{1} Variant.prefab", folder, gameObjectName);
        }
        
        public static GameObject CreateVariant(GameObject assetRoot, string path)
        {
            return PrefabUtility.CreateVariant(assetRoot, path);
        }
    }
}

晒一下目前工具的样子,哈哈

生成的结果