Unityで子オブジェクトをソフマップ上に配置するスクリプト

SofmapDeployer.cs

// This Script refered to CircleDeployer.cs
// http://kan-kikuchi.hatenablog.com/entry/CircleDeployer

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

public class SofmapDeployer : MonoBehaviour
{
	// 子の大きさ
	[SerializeField]
	private Vector2 size = Vector2.one;

	private void Awake()
	{
		Deploy();
	}

	//Inspectorの内容が変更された時に実行
	private void OnValidate()
	{
		Deploy();
	}

	//子をソフマップ状に配置する(ContextMenuで鍵マークの所にメニュー追加)
	[ContextMenu("Deploy")]
	private void Deploy()
	{
		//子を取得
		List<GameObject> childList = new List<GameObject>();
		foreach (Transform child in transform)
		{
			childList.Add(child.gameObject);
		}

		// 適切な列の長さを計算
		int colLen = (int)(Mathf.Sqrt(childList.Count * 2));
		Vector3 offset = new Vector3(size.x * (colLen & -2), 0, size.y * colLen - 1f) / 2;

		//各オブジェクトをソフマップ状に配置
		for (int i = 0; i < childList.Count; i++)
		{
			Vector3 childPostion = Vector3.zero;

			int colIndex = ((i * 2) / colLen);
			childPostion.x += size.x * colIndex;
			childPostion.z += size.y * ((((i * 2) % colLen) & -2) + (colIndex & 1));
			childPostion -= offset;

			childList[i].transform.localPosition = childPostion;

			// 名前を付け替える
			childList[i].name = (i + 1).ToString();
			childList[i].transform.SetAsLastSibling();
		}

	}
}