FancyScrollViewを使って、ループするスクロールビューの作り方

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

class MonsterItemData
{
    public int monsterId;
    public string monsterName;

    public MonsterItemData(int id, string monsterName)
    {
        this.monsterId = id;
        this.monsterName = monsterName;
    }
}

class MonsterScrollView : FancyScrollView<MonsterItemData>
{
    [SerializeField] private Scroller _scroller = default;
    [SerializeField] private GameObject _cellPrefab;
    protected override GameObject CellPrefab => _cellPrefab;

    protected override void Initialize()
    {
        _scroller.OnValueChanged(UpdatePosition);
    }

    public void UpdateData(IList<MonsterItemData> items)
    {
        UpdateContents(items);
        _scroller.SetTotalCount(items.Count);
    }
}

using FancyScrollView;
using UnityEngine;
using UnityEngine.UI;

class MonsterCell : FancyCell<MonsterItemData>
{
    [SerializeField] Animator animator = default;
    static class AnimatorHash
    {
        public static readonly int Scroll = Animator.StringToHash("scroll");
    }
    float currentPosition = 0;

    public Text _txtName;
    public override void UpdateContent(MonsterItemData itemData)
    {
        _txtName.text = itemData.monsterName;
    }

    public override void UpdatePosition(float position)
    {
        currentPosition = position;
        if (animator.isActiveAndEnabled)
        {
            animator.Play(AnimatorHash.Scroll, -1, position);
        }
        animator.speed = 0;
    }
    void OnEnable() => UpdatePosition(currentPosition);
}

using UnityEngine;
using System.Linq;

public class TestMonsterViewer : MonoBehaviour
{
    [SerializeField] private MonsterScrollView monsterScrollView;
    void Start()
    {
        var items = Enumerable.Range(0, 10).
            Select(i => new MonsterItemData(i, $"モンスター{i:D2}")).ToArray();

        monsterScrollView.UpdateData(items);
    }
}