Programatically instantiating GameObjects to the editor (not during gameplay)

Questions & Answers
1

Hello, I am working on a tile based tactics game and would like to be able to use code to instantiate my tiles (and all of the data necessary). I know how to do this at run time, but I need to be able to make exceptions to what the general rules on a case by case basis.

Because of this, I would like to be able to, in the editor, programatically instantiate my network of tiles. From there, I could manually tweak the tiles. I want this to happen not during in-editor game play (CTRL P), so that it and my tweaks persist.

Thank you for your time.

2

The syntax to create gameobjects is the same as in runtime. You can either make a custom editor window to facilitate your game object creation, or use a MenuItem:

//Make sure to place this script in a folder called "Editor"
using UnityEditor;
public class MyTools
{
    [MenuItem("MyTools/CreateGameObjects")]
    static void Create()
    {
         for (int x=0; x!=10; x++)
         {
              GameObject go = new GameObject("MyCreatedGO"+i);
              go.transform.position = new Vector3(x,0,0);
         }
    }
}

good luck, Lucas

3

Here is the above script with no errors and with creating the objects through Unity’s window GameObject/3D Object

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


public class CreateOBJ : MonoBehaviour {

    [MenuItem("GameObject/3D Object/CreateGameObjects")]

    static void Create()
    {
        for (int x = 0; x != 10; x++)
        {
            GameObject go = new GameObject("MyCreatedGO" + x);
            go.transform.position = new Vector3(x, 0, 0);
        }
    }
}