Changing multiple identical gameobjects into one prefab?

Hey @ltrout1999 :) good to see you again

I've just spent about an hour playing around with a script for you, so here it is:

 using UnityEngine;
 using System.Collections;
 using UnityEditor;
 
 public class PlaceCubes : MonoBehaviour {
 
     [MenuItem("MyMenu/PlaceCubes ")]
     static void Place()
     {
         // change these to work for you:
         string prefabName = "Cube"; // case sensitive
         Vector3 gridSize = new Vector3(10, 1, 5); // ie. (10, 1, 5) will generate 10 cubes in the x direction, 1 in the y, and 5 in the z
         Vector3 offset = new Vector3(1, 1, 1); // size of the cubes - default is (1, 1, 1)
         string newCubeName = ""; // leave blank for default name eg. "Cube(Clone)"
 
 
         GameObject cube = Resources.Load(prefabName, typeof(GameObject)) as GameObject;
 
 
         for (int x = 0; x < gridSize.x; ++x)
         {
             for (int y = 0; y < gridSize.y; ++y)
             {
                 for (int z = 0; z < gridSize.z; ++z)
                 {
                     Vector3 pos = new Vector3(x * offset.x, y * offset.y, z * offset.z);
                     GameObject go = Instantiate(cube, pos, cube.transform.rotation) as GameObject;
 
                     if (newCubeName != "")
                         go.name = newCubeName;
                 }
             }
         }
     }
 }

So what this'll do is it'll provide a Menu at the top (where File, Edit, etc are) called "MyMenu" with a Menu Item called "PlaceCubes", which when you click it will place cubes in the scene. (Note: the script does not need to be attached to any gameobjects to work).

There are some 'settings' at the top of the function which you'll need to manually change in the script to work to your liking - they are:

• "prefabName" : the name of the prefab object. Note: the prefab must be in a folder called "Resources". If the object is then in a subfolder of Resources then this name should be the path to the object (using forward slashes). eg. if your prefab is at Assets/Resources/Prefabs/Cube then this name should be set to "Prefabs/Cube"

• "gridSize" : the amount of cubes you want to generate in each direction.

• "offset" : the size of the cube - used to space them apart (which can literally be used for spacing if you want).

• "newCubeName" : a name for your new cubes.

I've tested this and it works fine on my end. But let me know if you have any issues :)

Enjoy, dhore.