SetBuildConfigurationComponent.cs

using System;
using System.Linq;
using Unity.Entities;
using Unity.Scenes;
using UnityEditor;
using UnityEngine;
using UnityEngine.LowLevel;
using Hash128 = Unity.Entities.Hash128;
#if UNITY_EDITOR
using Unity.Build;
#endif
#pragma warning disable 649

[ExecuteAlways]
public class SetBuildConfigurationComponent : MonoBehaviour
{
#if UNITY_EDITOR
    [SerializeField]
    public BuildConfiguration _BuildConfigurationA;
    [SerializeField]
    public BuildConfiguration _BuildConfigurationB;
#endif

    [SerializeField]
    [HideInInspector]
    Hash128 _BuildConfigurationGUIDA;

    [SerializeField]
    [HideInInspector]
    Hash128 _BuildConfigurationGUIDB;


    private World worldA;
    private World worldB;

    static void SetBuildConfigurationOnWorld(Hash128 buildConfigurationGUID, World world)
    {
        if (world == null)
            return;
        world.GetExistingSystem<SceneSystem>().BuildConfigurationGUID = buildConfigurationGUID;
    }

    private void OnValidate()
    {
#if UNITY_EDITOR
        _BuildConfigurationGUIDA = new GUID(AssetDatabase.AssetPathToGUID(AssetDatabase.GetAssetPath(_BuildConfigurationA)));
        _BuildConfigurationGUIDB = new GUID(AssetDatabase.AssetPathToGUID(AssetDatabase.GetAssetPath(_BuildConfigurationB)));
#endif

        SetBuildConfigurationOnWorld(_BuildConfigurationGUIDA, worldA);
        SetBuildConfigurationOnWorld(_BuildConfigurationGUIDB, worldB);
    }

    private void OnEnable()
    {
        var worldNameA = "BuildConfiguration Test World A";
        var worldNameB = "BuildConfiguration Test World B";

        World.DisposeAllWorlds();
        DefaultWorldInitialization.Initialize(worldNameA, !Application.isPlaying);
        DefaultWorldInitialization.Initialize(worldNameB, !Application.isPlaying);

        foreach (var world in World.All)
        {
            if (worldA == null && world.Name == worldNameA)
                worldA = world;
            else if (worldB == null && world.Name == worldNameB)
                worldB = world;
        }

        OnValidate();
    }

    private void OnDisable()
    {
        World.DisposeAllWorlds();
        DefaultWorldInitialization.Initialize("Default World", !Application.isPlaying);
    }
}