VRChatでインスタンス作成時にActiveにするオブジェクト(本スクリプトでは服装)をランダムで決定するUdonSharpスクリプト(確率と時間指定に対応)

NPCDressChanger.cs

using System;
using UdonSharp;
using UnityEngine;
using UnityEngine.UI;
using VRC.SDKBase;
using VRC.Udon;
using VRC.Udon.Common.Interfaces;

public class NPCDressChanger : UdonSharpBehaviour
{
    [SerializeField]
    private int dressId = -1;

    [SerializeField]
    private GameObject defaultDress;

    [SerializeField]
    private GameObject[] normalDresses;

    [SerializeField]
    private GameObject[] specialDresses;

    [SerializeField]
    private Vector2[] specialDressTime; // 8:00～14:00の場合, 800 1400のように値を設定する

    [SerializeField]
    private int defaultDressRate = 1;

    [SerializeField]
    private int[] normalDressRates;

    [SerializeField]
    private int[] specialDressRates;

    private bool defaultOnly = false;

    [SerializeField]
    private Toggle defaultOnlyToggle;

    private GameObject[] dresses;

    private void Start()
    {
        dresses = GetDresses();
    }

    public override void OnPlayerJoined(VRCPlayerApi player)
    {
        if (Networking.IsMaster)
        {
            // インスタンス生成後にランダムに選ぶ
            if (dressId == -1)
            {
                // 現在の時間で出現可能なスペシャル衣装のindexを取得
                var nowTime = DateTime.Now.Hour * 100 + DateTime.Now.Minute;
                var availableSpecialDressIndices = new int[specialDresses.Length];
                var addSpecialIndex = 0;
                for (int i = 0; i < specialDressTime.Length; i++)
                {
                    if (specialDressTime[i].x <= specialDressTime[i].y)
                    {
                        if (nowTime >= specialDressTime[i].x && nowTime <= specialDressTime[i].y)
                        {
                            availableSpecialDressIndices[addSpecialIndex++] = i;
                        }
                    }
                    else
                    {
                        if (nowTime >= specialDressTime[i].x || nowTime <= specialDressTime[i].y)
                        {
                            availableSpecialDressIndices[addSpecialIndex++] = i;
                        }
                    }
                }

                // 確率機を作成
                // とりあえず現状は等倍率で出る
                var maxSize = defaultDressRate;
                foreach (var rate in normalDressRates)
                {
                    maxSize += rate;
                }
                foreach (var rate in specialDressRates)
                {
                    maxSize += rate;
                }
                var tmpBox = new int[maxSize];
                var addIndex = 0;

                // デフォルト衣装
                for (int i = 0; i < defaultDressRate; i++)
                {
                    tmpBox[addIndex++] = 0;
                }
                // 基本衣装
                for (int i = 0; i < normalDresses.Length; i++)
                {
                    for (int j = 0; j < normalDressRates[i]; j++)
                    {
                        tmpBox[addIndex++] = i + 1;
                    }
                }
                // 特殊衣装
                // addSpecialIndex == 利用可能な衣装の個数
                for (int i = 0; i < addSpecialIndex; i++)
                {
                    var specialDressIndex = availableSpecialDressIndices[i];
                    for (int j = 0; j < specialDressRates[specialDressIndex]; j++)
                    {
                        tmpBox[addIndex++] = normalDresses.Length + 1 + specialDressIndex;
                    }
                }
                var gachaBox = new int[addIndex];
                for (int i = 0; i < addIndex; i++)
                {
                    gachaBox[i] = tmpBox[i];
                }

                dressId = gachaBox[UnityEngine.Random.Range(0, gachaBox.Length)];
            }
            ChangeDressSync(dressId);

            if (defaultOnly)
            {
                SendCustomNetworkEvent(NetworkEventTarget.All, nameof(SetDefaultOnlyToTrue));
            }
            else
            {
                SendCustomNetworkEvent(NetworkEventTarget.All, nameof(SetDefaultOnlyToFalse));
            }
        }
    }

    public void ChangeDressSync(int dressId)
    {
        switch (dressId)
        {
            case 0:
                SendCustomNetworkEvent(NetworkEventTarget.All, nameof(ChangeDressTo0));
                break;
            case 1:
                SendCustomNetworkEvent(NetworkEventTarget.All, nameof(ChangeDressTo1));
                break;
            case 2:
                SendCustomNetworkEvent(NetworkEventTarget.All, nameof(ChangeDressTo2));
                break;
            case 3:
                SendCustomNetworkEvent(NetworkEventTarget.All, nameof(ChangeDressTo3));
                break;
            case 4:
                SendCustomNetworkEvent(NetworkEventTarget.All, nameof(ChangeDressTo4));
                break;
            case 5:
                SendCustomNetworkEvent(NetworkEventTarget.All, nameof(ChangeDressTo5));
                break;
            case 6:
                SendCustomNetworkEvent(NetworkEventTarget.All, nameof(ChangeDressTo6));
                break;
            case 7:
                SendCustomNetworkEvent(NetworkEventTarget.All, nameof(ChangeDressTo7));
                break;
            case 8:
                SendCustomNetworkEvent(NetworkEventTarget.All, nameof(ChangeDressTo8));
                break;
            case 9:
                SendCustomNetworkEvent(NetworkEventTarget.All, nameof(ChangeDressTo9));
                break;
            case 10:
                SendCustomNetworkEvent(NetworkEventTarget.All, nameof(ChangeDressTo10));
                break;
            default:
                break;
        }
    }

    private GameObject[] GetDresses()
    {
        var dresses = new GameObject[1 + normalDresses.Length + specialDresses.Length];
        var addIndex = 0;
        dresses[addIndex++] = defaultDress;
        foreach (var dress in normalDresses)
        {
            dresses[addIndex++] = dress;
        }
        foreach (var dress in specialDresses)
        {
            dresses[addIndex++] = dress;
        }
        return dresses;
    }

    private void ChangeDress(int dressId)
    {
        for (int i = 0; i < dresses.Length; i++)
        {
            dresses[i].SetActive(false);
        }
        dresses[dressId].SetActive(true);
    }

    public void ChangeDressTo0Sync()
    {
        SendCustomNetworkEvent(NetworkEventTarget.All, nameof(ChangeDressTo0));
    }

    public void ChangeDressTo1Sync()
    {
        SendCustomNetworkEvent(NetworkEventTarget.All, nameof(ChangeDressTo1));
    }

    public void ChangeDressTo2Sync()
    {
        SendCustomNetworkEvent(NetworkEventTarget.All, nameof(ChangeDressTo2));
    }

    public void ChangeDressTo3Sync()
    {
        SendCustomNetworkEvent(NetworkEventTarget.All, nameof(ChangeDressTo3));
    }

    public void ChangeDressTo4Sync()
    {
        SendCustomNetworkEvent(NetworkEventTarget.All, nameof(ChangeDressTo4));
    }

    public void ChangeDressTo5Sync()
    {
        SendCustomNetworkEvent(NetworkEventTarget.All, nameof(ChangeDressTo5));
    }

    public void ChangeDressTo6Sync()
    {
        SendCustomNetworkEvent(NetworkEventTarget.All, nameof(ChangeDressTo6));
    }

    public void ChangeDressTo7Sync()
    {
        SendCustomNetworkEvent(NetworkEventTarget.All, nameof(ChangeDressTo7));
    }

    public void ChangeDressTo8Sync()
    {
        SendCustomNetworkEvent(NetworkEventTarget.All, nameof(ChangeDressTo8));
    }

    public void ChangeDressTo9Sync()
    {
        SendCustomNetworkEvent(NetworkEventTarget.All, nameof(ChangeDressTo9));
    }

    public void ChangeDressTo10Sync()
    {
        SendCustomNetworkEvent(NetworkEventTarget.All, nameof(ChangeDressTo10));
    }

    public void ChangeDressTo0()
    {
        dressId = 0;
        ChangeDress(0);
    }

    public void ChangeDressTo1()
    {
        dressId = 1;
        ChangeDress(1);
    }

    public void ChangeDressTo2()
    {
        dressId = 2;
        ChangeDress(2);
    }

    public void ChangeDressTo3()
    {
        dressId = 3;
        ChangeDress(3);
    }

    public void ChangeDressTo4()
    {
        dressId = 4;
        ChangeDress(4);
    }

    public void ChangeDressTo5()
    {
        dressId = 5;
        ChangeDress(5);
    }

    public void ChangeDressTo6()
    {
        dressId = 6;
        ChangeDress(6);
    }

    public void ChangeDressTo7()
    {
        dressId = 7;
        ChangeDress(7);
    }

    public void ChangeDressTo8()
    {
        dressId = 8;
        ChangeDress(8);
    }

    public void ChangeDressTo9()
    {
        dressId = 9;
        ChangeDress(9);
    }

    public void ChangeDressTo10()
    {
        dressId = 10;
        ChangeDress(10);
    }

    public void ChangeDefaultOnlyStateSync()
    {
        if (Networking.IsMaster)
        {
            defaultOnly = !defaultOnly;

            if (defaultOnly)
            {
                SendCustomNetworkEvent(NetworkEventTarget.All, nameof(SetDefaultOnlyToTrue));
            }
            else
            {
                SendCustomNetworkEvent(NetworkEventTarget.All, nameof(SetDefaultOnlyToFalse));
            }
        }
        else
        {
            // Master以外は押しても変更されない
            defaultOnlyToggle.isOn = defaultOnly;
        }
    }

    public void SetDefaultOnlyToTrue()
    {
        defaultOnly = true;
        defaultOnlyToggle.isOn = defaultOnly;
        ChangeDress(0);
    }

    public void SetDefaultOnlyToFalse()
    {
        defaultOnly = false;
        defaultOnlyToggle.isOn = defaultOnly;
        ChangeDress(dressId);
    }

    public override void Interact()
    {
        dressId = -1;
        OnPlayerJoined(Networking.LocalPlayer);
    }
}