Client/GameClient/Assets/Game/HotUpdate/Assets/PreDownloadManager.cs

using GFGGame.Launcher;
using System.Collections.Generic;
using YooAsset;

namespace GFGGame
{
    public enum ResType
    {
        Sprite,
        Animation,
        Both
    }

    //负责提供获得卡牌和衣服部件时开启后台预下载的接口
    public class PreDownloadManager : SingletonMonoBase<PreDownloadManager>
    {
        private List<string> waitList = new List<string>();
        private ResourceDownloaderOperation downloaderOperation;
        private string[] locationsLoading;

        public void TryAdd(string location)
        {
            if (LoadManager.Instance.CheckResExsited(location)) return;
            if (!YooAssets.CheckResExist(location)) return;
            waitList.Add(location);
            LogUtil.LogEditor($"PreloadManager TryAdd {location}");
        }

        /// <summary>
        /// 预加载套装资源
        /// </summary>
        /// <param name="suitId"></param>
        /// <param name="resType">可以选择预加载静态图或者动画或者全部</param>
        /// <param name="excludeType">排除一些类型，由ConstDressUpItemType定义</param>
        /// <param name="includeOptional">是否包含可选部件</param>
        public void PreDownloadSuitRes(int suitId, ResType resType, int[] excludeType, bool includeOptional)
        {
            SuitCfg suitCfg = SuitCfgArray.Instance.GetCfg(suitId);
            if (suitCfg == null)
            {
                return;
            }
            //找到要穿的散件
            List<int> targetItemList = DressUpUtil.GetSuitItems(suitId, resType != ResType.Sprite, excludeType, includeOptional, false);
            foreach (var itemId in targetItemList)
            {
                PreDownloadDressUpRes(itemId, resType);
            }
            if (resType != ResType.Sprite)
            {
                if (!string.IsNullOrEmpty(suitCfg.aniRes))
                {
                    string assetPath = ResPathUtil.GetDressUpAnimationPath(suitCfg.aniRes);
                    PreDownloadManager.Instance.TryAdd(assetPath);
                    assetPath = ResPathUtil.GetDressUpEffectPath(suitCfg.aniRes, true);
                    PreDownloadManager.Instance.TryAdd(assetPath);
                }
            }
        }

        public void PreDownloadDressUpRes(int itemId, ResType resType = ResType.Sprite)
        {
            ItemCfg dressUpCfg = ItemCfgArray.Instance.GetCfg(itemId);
            string assetPath;
            if (resType != ResType.Animation)
            {
                assetPath = ResPathUtil.GetDressUpLayerSpriteResPath(dressUpCfg, 1);
                PreDownloadManager.Instance.TryAdd(assetPath);
                assetPath = ResPathUtil.GetDressUpLayerSpriteResPath(dressUpCfg, 2);
                PreDownloadManager.Instance.TryAdd(assetPath);
                assetPath = ResPathUtil.GetDressUpLayerSpriteResPath(dressUpCfg, 3);
                PreDownloadManager.Instance.TryAdd(assetPath);
                assetPath = ResPathUtil.GetDressUpLayerEffectResPath(dressUpCfg, 1, false);
                PreDownloadManager.Instance.TryAdd(assetPath);
                assetPath = ResPathUtil.GetDressUpLayerEffectResPath(dressUpCfg, 2, false);
                PreDownloadManager.Instance.TryAdd(assetPath);
                assetPath = ResPathUtil.GetDressUpLayerEffectResPath(dressUpCfg, 3, false);
                PreDownloadManager.Instance.TryAdd(assetPath);
            }
            if (resType != ResType.Sprite)
            {
                assetPath = ResPathUtil.GetDressUpLayerAnimationResPath(dressUpCfg, 1);
                PreDownloadManager.Instance.TryAdd(assetPath);
                assetPath = ResPathUtil.GetDressUpLayerAnimationResPath(dressUpCfg, 2);
                PreDownloadManager.Instance.TryAdd(assetPath);
                assetPath = ResPathUtil.GetDressUpLayerAnimationResPath(dressUpCfg, 3);
                PreDownloadManager.Instance.TryAdd(assetPath);
                assetPath = ResPathUtil.GetDressUpLayerEffectResPath(dressUpCfg, 1, true);
                PreDownloadManager.Instance.TryAdd(assetPath);
                assetPath = ResPathUtil.GetDressUpLayerEffectResPath(dressUpCfg, 2, true);
                PreDownloadManager.Instance.TryAdd(assetPath);
                assetPath = ResPathUtil.GetDressUpLayerEffectResPath(dressUpCfg, 3, true);
                PreDownloadManager.Instance.TryAdd(assetPath);
            }
        }

        public void PreDownloadCardAnimationRes(int itemId)
        {
            ItemCfg cardCfg = ItemCfgArray.Instance.GetCfg(itemId);
            string assetPath = ResPathUtil.GetCardAnimationPath(cardCfg.res);
            PreDownloadManager.Instance.TryAdd(assetPath);
        }

        private void Update()
        {
            if(downloaderOperation != null)
            {
                if(downloaderOperation.IsDone)
                {
                    foreach(var t in locationsLoading)
                    {
                        LoadManager.Instance.SetResDownloaded(t);
                    }
                    downloaderOperation = null;
                    locationsLoading = null;
                }
            }

            if(downloaderOperation == null && waitList.Count > 0)
            {
                waitList.Reverse();//看了yooasset源码，疑似他是从后往前加载，这里翻转一下
                locationsLoading = waitList.ToArray();
                downloaderOperation = YooAssets.CreateBundleDownloader(locationsLoading, 1, 3);
                downloaderOperation.BeginDownload();
                waitList.Clear();
            }
        }
    }
}