Shpereの大きさを変えながら縦横にならべるコード

Create sphere in Grid change size

using System.Collections.Generic;
using UnityEngine;

public class Generate : MonoBehaviour
{
    [SerializeField]
    private GameObject _spherePrefab = default;
    [SerializeField]
    private int _unitKazu = 16;

    private List<GameObject> _sphereList = new List<GameObject>();

    private void Start()
    {
        if (_spherePrefab != null)
        {
            for (int i = 0; i < _unitKazu * _unitKazu; i++)
            {
                float x = _spherePrefab.transform.localScale.x * (i / _unitKazu) + (_spherePrefab.transform.localScale.x / 2);
                float y = _spherePrefab.transform.localScale.y * (i % _unitKazu) + (_spherePrefab.transform.localScale.y / 2);

                GameObject sphere = Instantiate(_spherePrefab, new Vector3(x, y, _spherePrefab.transform.localPosition.z), Quaternion.identity);
                float newScaleX = ((float)(i % (_unitKazu + 1)) / _unitKazu) * sphere.transform.localScale.x / 2;
                float newScaleY = ((float)(i % (_unitKazu + 1)) / _unitKazu) * sphere.transform.localScale.y / 2;
                float newScaleZ = ((float)(i % (_unitKazu + 1)) / _unitKazu) * sphere.transform.localScale.z / 2;

                sphere.transform.localScale = new Vector3(newScaleX, newScaleY, newScaleZ);
            }
        }
    }
}