UnityのPhotonでRayが触れたオブジェクトのSliderを変更したい。

Question

Unityでオンラインゲームを作っています。

クリックで、Rayを発射し、相手に触れたら、そのオブジェクトの子供のSliderのValueを減らしたいと思っています。

しかし、

using System;
using System.Collections;
using UnityEngine;
using UnityEngine.UI;
using Photon.Pun;


public class Hassya : MonoBehaviour
{
    [SerializeField] private string Player = "Player";
    [SerializeField] private Material highlightMaterial;
    [SerializeField] private Material defaultMaterial;

    private Transform _selection;
    public AudioClip sound1;
    public AudioClip re;
    public AudioSource audiosource;
    public GameObject cam;
    public Camera came;
    public float zandan;
    String z;
    public Text zandanText;
    public Text zandanTextPC;
    public Image Dot;
    public Image Aim;
    bool a;
    public GameObject SettingCanvas;
    float TimeCount;

    private int timeCount;

    public GameObject h;
    public GameObject b;

    float killcount;
    public Text killPC;
    public Text kill;
    public float tekihp;

    PhotonView m_photonView;
    void Start()
    {
        zandan = 30;
        zandanText.text = "30";
        zandanTextPC.text = "30";
    }
    private void Update()
    {
        if (Input.GetMouseButtonDown(0))
        {
            Cursor.lockState = CursorLockMode.Locked;
            hassya();
        }
        timeCount += 1;

        if (Input.GetButton("Click"))
        {

            if (timeCount % 8 == 0)
            {
                hassya();
            }
        }


    }
    public void hassya()
    {

        syori(); 
       
    }
    void syori()
    {

        if (zandan > 0)
        {
            zandan -= 1;
            z = zandan.ToString();
            zandanTextPC.text = z;
            audiosource.PlayOneShot(sound1);

            RaycastHit hit;
            if (Physics.Raycast(ray, out hit))
            {

                var selection = hit.transform;

                if (selection.tag == "Player")
                {

                    h = selection.GetComponent<Jump>().Head;
                    b = selection.GetComponent<Jump>().Body;
                    var selectionRenderer = h.GetComponent<Renderer>();
                    var selectionRenderer2 = b.GetComponent<Renderer>();

                    if (selectionRenderer != null)
                    {

                        selectionRenderer.material = highlightMaterial;
                        
                        float a = selection.GetComponent<Jump>().SliderPC.GetComponent<HP>().a;　
                        a -= 3;
　　　　　　　　　　　　　　//↑で、触れたオブジェクトの中にあるSliderの変数を取得して、代入し、減らしている。

                        tekihp = a;

                        if (tekihp <= 0)
                        {
                            killcount += 1;
                            kill.text = killcount.ToString() + "人抜き";
                        }
                    }


                    _selection = selection;
                }

            }


        }
    }



    public void Call()
    {
        var selectionRenderer = h.GetComponent<Renderer>();
        var selectionRenderer2 = b.GetComponent<Renderer>();
        selectionRenderer.material = defaultMaterial;
        selectionRenderer2.material = defaultMaterial;
        _selection = null;

    }

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Photon.Pun;
using UnityEngine.UI;

public class HP : MonoBehaviour
{
    public float a;
    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        a = GetComponent<Slider>().value;
    }

    void OnPhotonSerializeView(PhotonStream stream, PhotonMessageInfo info)
    {
        if (stream.IsWriting)
        {
            //データの送信
            stream.SendNext(a);
        }
        else
        {
            //データの受信
            a = (float)stream.ReceiveNext();
        }
    }

}

しかし、Sliderは減りません。どうしたらよいでしょうか？

Answer 1

HP.a プロパティの値を操作したら Slider が動くようにしたいんですよね？

    void Update()
    {
        a = GetComponent<Slider>().value;
    }

逆じゃないですか？つまり GetComponent<Slider>().value = a; じゃないですか？