From 8ed68faa251768ec1f0d0825ca713c7e5a513fb6 Mon Sep 17 00:00:00 2001
From: MingWai Chan <mingwai@unity3d.com>
Date: Tue, 7 Sep 2021 17:17:27 +0200
Subject: [PATCH] add move objects to ground

(cherry picked from commit 2abd4a6620e9fd644ffb26b7a1e775b7ad0c797e)
(cherry picked from commit c8ca1afdef75065229ac33bd1ba1983e70ea45b8)
---
 Assets/Editor/PlaceObjectsTool.cs | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/Assets/Editor/PlaceObjectsTool.cs b/Assets/Editor/PlaceObjectsTool.cs
index 200a49d..c3be3df 100644
--- a/Assets/Editor/PlaceObjectsTool.cs
+++ b/Assets/Editor/PlaceObjectsTool.cs
@@ -144,6 +144,13 @@ void OnGUI ()
  
         EditorGUILayout.LabelField("", GUI.skin.horizontalSlider);
 
+        //Place Objects to Ground
+        EditorGUILayout.BeginHorizontal();
+        if (GUILayout.Button ("Move Objects to Ground")) MoveObjectToGround();
+        EditorGUILayout.EndHorizontal();
+ 
+        EditorGUILayout.LabelField("", GUI.skin.horizontalSlider);
+
         //Copy paste object transform
         copyFromTrans = (Transform)EditorGUILayout.ObjectField("Copy transform from",copyFromTrans, typeof(Transform), true);
         EditorGUILayout.BeginHorizontal();
@@ -360,6 +367,25 @@ private Vector3 RandomV3(Vector3 rmin, Vector3 rmax)
         return v;
     }
 
+    void MoveObjectToGround()
+    {
+        SetSelectionObjects();
+
+        //Prevent error
+        if(objs == null) return;
+
+        for (int i = 0; i < objs.Length; i++)
+        {
+            Vector3 pos = objs[i].transform.position;
+            Vector3 sca = objs[i].transform.localScale;
+
+            pos.y = sca.y * 0.5f;
+
+            Undo.RecordObject(objs[i].transform, "MoveObjectToGround");
+            objs[i].transform.position = pos;
+        }
+    }
+
     void AlignObjects()
     {
         SetSelectionObjects();