ModelProject/Assets/Scripts/ManifestRequest.cs

using System.Collections;
using System.Collections.Generic;
using System.IO;
using UnityEngine;

public class ManifestRequest : AssetRequest
{
    private string assetName;
    private BundleRequest request;

    public int version { get; private set; }

    public override float progress
    {
        get
        {
            if (isDone)
                return 1;
            if (LoadState == AssetLoadState.Init)
                return 0;
            if (request == null)
                return 1;
            return request.progress;
        }
    }

    internal override void Load()
    {
        assetName = Path.GetFileName(name);
        if (LoadModule.runtimeMode)
        {
            var assetBundleName = assetName.Replace("", "").ToLower();
            request = LoadModule.LoadBundleAsync(assetBundleName);
        }
        else
        {
            LoadState = AssetLoadState.Loaded;
        }
    }

    internal override bool Update()
    {
        if (!base.Update())
            return false;
        if (LoadState == AssetLoadState.Init)
            return true;
        if(request == null)
        {
            LoadState = AssetLoadState.Loaded;
            error = "request == null";
            return false;
        }

        if (request.isDone)
        {
            if(request.assetBundle == null)
            {
                error = "assetBundle == null";
            }
            else
            {
                var manifest = request.assetBundle.LoadAsset<Manifest>(assetName);
                if (manifest == null)
                    error = "manifest == null";
                else
                    LoadModule.OnManifestLoaded(manifest);
            }
            LoadState = AssetLoadState.Loaded;
            return false;
        }
        return true;
    }
}