LaboratoryProtection/Assets/UnityTest/UI/Scripts/Other/IndexController.cs

using Cysharp.Threading.Tasks;

using System.Threading;

using UniRx;

using UnityEngine;
using UnityEngine.UI;

public class IndexController : BaseBehaviour
{
    [SerializeField]
    private Button[] btns;

    private void Reset()
    {
        this.btns = this.GetComponentsInChildren<Button>(true);
    }

    public void Bind(AsyncReactiveProperty<int> index, int min, int max, CancellationToken cancellationToken)
    {
        this.btns[0]
            .OnClickAsObservable()
            .Where(_ => index.Value > min)
            .Subscribe(_ => {
                index.Value--;
            })
            .AddTo(cancellationToken);

        this.btns[1]
        .OnClickAsObservable()
        .Where(_ => index.Value < max)
        .Subscribe(_ => {
            index.Value++;
        })
        .AddTo(cancellationToken);
    }

    public void SetActive(int index, bool value)
    {
        this.btns[index].gameObject.SetActive(value);
    }
}