非同期でEntityの読込

LoadWorldAsync.cs

using Unity.Entities;
using Unity.Entities.Serialization;
using UnityEngine;
using System.Threading.Tasks;
using UnityEngine.Profiling;

public class LoadWorldAsync : MonoBehaviour
{
    [SerializeField] string fileName = "save.sav";
    [SerializeField] GameObject sharedData = null;

    private World localWorld;
    private const string worldName = "local world";

    private void OnEnable()
    {
        localWorld = new World(worldName);
        localWorld.GetOrCreateManager<EntityManager>();
    }

    private void OnDisable()
    {
        if (localWorld.IsCreated)
            localWorld.Dispose();
    }

    public async void Load()
    {
        var entityManager = localWorld.GetExistingManager<EntityManager>();
        var num = SerializeUtilityHybrid.DeserializeSharedComponents(entityManager, sharedData, null);
        var transaction = entityManager.BeginExclusiveEntityTransaction();

        await Task.Run(() =>
        {
            using (var reader = new StreamBinaryReader(fileName))
            {
                SerializeUtility.DeserializeWorld(transaction, reader, num);
                SerializeUtilityHybrid.ReleaseSharedComponents(transaction, num);
            }
        });

        entityManager.EndExclusiveEntityTransaction();
        World.Active.GetExistingManager<EntityManager>().MoveEntitiesFrom(entityManager);
    }
}