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Unity 多次元のListがインスペクター上で表示されない

Last updated at Posted at 2022-12-04

問題

UnityEditorのインスペクターでは多次元のListが表示されなくListの状態を確認できません。
image.png

開発環境

Unity:2021.3.9
IDE:Rider
OS:Window10

対処方法

TextMeshProコンポーネントのtextにListの内容を出力して対処します。
この方法の良いところはインスペクターの挙動を考慮しなくて済むことです。
欠点は読み取り専用で値の変更はできません。

sample.cs
using System;
using System.Collections.Generic;
using TMPro;
using UnityEngine;


public class Strings : MonoBehaviour
{
    // インスペクター上に表示されない
    [SerializeField] private List<Monster> monsterList = new List<Monster>();
    // インスペクター上に表示される。他にはbool型とかも
    [SerializeField] public int count = 0;
    // 文字出力用
    [SerializeField] private TextMeshProUGUI debugMonitor;
    
    // Update is called once per frame
    void Update()![ArrayImprovement.gif](https://qiita-image-store.s3.ap-northeast-1.amazonaws.com/0/2710623/fcfd586f-0320-551e-8187-c11516287f94.gif)

    {
        displayByTextMeshPro();
    }
    
    
    private void displayByTextMeshPro()
    {
        debugMonitor.text = null;
        // ヘッダー
        debugMonitor.text = "Monster List \n hp ,name         \n";
        foreach (var monster in monsterList)
        {
            // -のときは左揃え、 -を外すと右揃え
            debugMonitor.text += string.Format("{0,-3:#} {1,-9:#} \n",  monster.Hp,monster.Name );
        }
    }
    /// <summary>
    ///  GameObjectをマウスクリックすると monsterListにmonsterが追加されます。5回まで対応
    /// </summary>
    private void OnMouseDown()
    {
        if (count == 0)
        monsterList.Add(new Monster(10,"goblin"));
        if (count == 1)
            monsterList.Add(new Monster(20,"Orc"));
        if (count == 2)
            monsterList.Add(new Monster(30,"Giant"));
        if (count == 3)
            monsterList.Add(new Monster(50,"FireGiant"));
        if (count == 4)
            monsterList.Add(new Monster(70,"AncientGiant"));
        count++;
    }
}

class Monster
 {
     private int hp;
     private String name;

     public int Hp
     {
         get => hp;
         set => hp = value;
     }

     public string Name
     {
         get => name;
         set => name = value;
     }

     public Monster(int hp, string name)
     {
         Hp = hp;
         this.name = name;
     }

 }

実際の動き

下のgifアニメは実行したときの様子です。

ArrayImprovement.gif

参考

別の対処方法 
https://kan-kikuchi.hatenablog.com/entry/ValueListList

C# の文字揃え方法
https://ict119.com/alignment/

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