PlaceSelectionOnSurface

Revision as of 23:02, 19 December 2005

Author: Jonathan Czeck (aarku)

Description

This wizard takes the current selection and raycasts downward from each object and moves them to where the raycast hit. It is useful for placing a lot of items on top of a terrain.

It is not bulletproof to say the least, but it provides a starting point.

Usage

Place this script in YourProject/Assets/Editor and a menu item will automatically appear in the GameObject menu after it is compiled.

Note: This snippet requires at least Unity version 1.2

C# - PlaceSelectionOnSurface.cs

<csharp>

using UnityEngine;
using UnityEditor;

public class PlaceSelectionOnSurface : ScriptableObject
{
   [MenuItem ("GameObject/Place Selection On Surface")]
   static void CreateWizard ()
   {
       Transform[] transforms = Selection.GetTransforms(SelectionMode.Deep |
           SelectionMode.ExcludePrefab | SelectionMode.OnlyUserModifiable);
       
       if (transforms.Length > 0 && EditorUtility.DisplayDialog("Place Selection On Surface?",
           "Are you sure you want to place " + transforms.Length +
           ((transforms.Length > 1) ? " objects" : " object") +
           " on the surface in the -Y direction?", "Place", "Do Not Place"))
       {
           foreach (Transform transform in transforms)
           {
               RaycastHit hit;
               if (Physics.Raycast(transform.position, Vector3.down, out hit))
               {
                   transform.position = hit.point;
                   Vector3 randomized = Random.onUnitSphere;
                   randomized = new Vector3(randomized.x, 0F, randomized.z);
                   transform.rotation = Quaternion.LookRotation(randomized, hit.normal);
               }
           }
       }
   }
}

</csharp>