From 1a0adfab4c67fc07e58a6248f55bcc3466b360b4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Simon=20L=C3=BCbe=C3=9F?= <simon.luebess@gmail.com>
Date: Sat, 6 Apr 2024 01:18:12 +0200
Subject: [PATCH] Replace with Prefab script

---
 .../Assets/Editor/ReplaceWithPrefab.cs        | 57 +++++++++++++++++++
 .../Assets/Editor/ReplaceWithPrefab.cs.meta   | 11 ++++
 2 files changed, 68 insertions(+)
 create mode 100644 3d Prototyp/Assets/Editor/ReplaceWithPrefab.cs
 create mode 100644 3d Prototyp/Assets/Editor/ReplaceWithPrefab.cs.meta

diff --git a/3d Prototyp/Assets/Editor/ReplaceWithPrefab.cs b/3d Prototyp/Assets/Editor/ReplaceWithPrefab.cs
new file mode 100644
index 00000000..4abcfacd
--- /dev/null
+++ b/3d Prototyp/Assets/Editor/ReplaceWithPrefab.cs	
@@ -0,0 +1,57 @@
+using UnityEngine;
+using UnityEditor;
+
+public class ReplaceWithPrefab : EditorWindow
+{
+    [SerializeField] private GameObject prefab;
+
+    [MenuItem("Tools/Replace With Prefab")]
+    static void CreateReplaceWithPrefab()
+    {
+        EditorWindow.GetWindow<ReplaceWithPrefab>();
+    }
+
+    private void OnGUI()
+    {
+        prefab = (GameObject)EditorGUILayout.ObjectField("Prefab", prefab, typeof(GameObject), false);
+
+        if (GUILayout.Button("Replace"))
+        {
+            var selection = Selection.gameObjects;
+
+            for (var i = selection.Length - 1; i >= 0; --i)
+            {
+                var selected = selection[i];
+                var prefabType = PrefabUtility.GetPrefabType(prefab);
+                GameObject newObject;
+
+                if (prefabType == PrefabType.Prefab)
+                {
+                    newObject = (GameObject)PrefabUtility.InstantiatePrefab(prefab);
+                }
+                else
+                {
+                    newObject = Instantiate(prefab);
+                    newObject.name = prefab.name;
+                }
+
+                if (newObject == null)
+                {
+                    Debug.LogError("Error instantiating prefab");
+                    break;
+                }
+
+                Undo.RegisterCreatedObjectUndo(newObject, "Replace With Prefabs");
+                newObject.transform.parent = selected.transform.parent;
+                newObject.transform.localPosition = selected.transform.localPosition;
+                newObject.transform.localRotation = selected.transform.localRotation;
+                newObject.transform.localScale = selected.transform.localScale;
+                newObject.transform.SetSiblingIndex(selected.transform.GetSiblingIndex());
+                Undo.DestroyObjectImmediate(selected);
+            }
+        }
+
+        GUI.enabled = false;
+        EditorGUILayout.LabelField("Selection count: " + Selection.objects.Length);
+    }
+}
diff --git a/3d Prototyp/Assets/Editor/ReplaceWithPrefab.cs.meta b/3d Prototyp/Assets/Editor/ReplaceWithPrefab.cs.meta
new file mode 100644
index 00000000..be2969a7
--- /dev/null
+++ b/3d Prototyp/Assets/Editor/ReplaceWithPrefab.cs.meta	
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: ed3879175cf379f499caea1fe83a6967
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: