Basic Object Spawner for unity editor

BasicObjectSpawner.cs

using UnityEngine;
using UnityEditor;
using System;

public class BasicObjectSpawner : EditorWindow
{
    string objectBaseName;
    int objectId;
    GameObject objectToSpawn;
    float objectScale;
    float spawnRadius = 5f;

    [MenuItem("Tools/Basic Object Spawner")]
    private static void ShowWindow()
    {
        var window = GetWindow<BasicObjectSpawner>();
        window.titleContent = new GUIContent("BasicObjectSpawner");
        window.Show();
    }

    private void OnGUI()
    {
        GUILayout.Label("Spawn New Object", EditorStyles.boldLabel);

        objectBaseName = EditorGUILayout.TextField("Base Name", objectBaseName);
        objectId = EditorGUILayout.IntField("Object ID", objectId);
        objectScale = EditorGUILayout.Slider("Object SCale", objectScale, 0.5f, 3f);
        spawnRadius = EditorGUILayout.FloatField("Spawn Radius", spawnRadius);
        objectToSpawn = EditorGUILayout.ObjectField("Prefab to Spawn", objectToSpawn, typeof(GameObject), false) as GameObject;

        if (GUILayout.Button("Spawn Object"))
        {
            SpawnObject();
        }

    }

    private void SpawnObject()
    {
        if (objectToSpawn == null)
        {
            Debug.LogError("Prefab didn't assigned");
            return;
        }
        if (String.IsNullOrEmpty(objectBaseName))
        {
            objectBaseName = objectToSpawn.name;
        }

        var spawnCircle = UnityEngine.Random.insideUnitCircle * spawnRadius;
        var spawnPos = new Vector3(spawnCircle.x, 0f, spawnCircle.y);

        var newObject = Instantiate(objectToSpawn, spawnPos, Quaternion.identity);
        newObject.name = objectBaseName + objectId;
        newObject.transform.localScale = Vector3.one * objectScale;

        objectId++;

    }
}