refactor the runtime code

重构了运行时代码，支持全新的文件系统。
2024-07-04 20:36:26 +08:00
parent 2987d356b6
commit ff02da5c54
313 changed files with 9889 additions and 7234 deletions
@@ -0,0 +1,222 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace YooAsset
+{
+    internal class BundleFileLoader
+    {
+        public enum EStatus
+        {
+            None = 0,
+            Succeed,
+            Failed
+        }
+
+        private readonly ResourceManager _resourceManager;
+        private readonly List<ProviderBase> _providers = new List<ProviderBase>(100);
+        private readonly List<ProviderBase> _removeList = new List<ProviderBase>(100);
+        private FSLoadBundleOperation _loadBundleOp;
+        private bool _isDone = false;
+
+        /// <summary>
+        /// 资源包文件信息
+        /// </summary>
+        public BundleInfo MainBundleInfo { private set; get; }
+
+        /// <summary>
+        /// 加载状态
+        /// </summary>
+        public EStatus Status { protected set; get; }
+
+        /// <summary>
+        /// 最近的错误信息
+        /// </summary>
+        public string LastError { protected set; get; } = string.Empty;
+
+        /// <summary>
+        /// 是否已经销毁
+        /// </summary>
+        public bool IsDestroyed { private set; get; } = false;
+
+        /// <summary>
+        /// 引用计数
+        /// </summary>
+        public int RefCount { private set; get; } = 0;
+
+        /// <summary>
+        /// 下载进度
+        /// </summary>
+        public float DownloadProgress { set; get; } = 0;
+
+        /// <summary>
+        /// 下载大小
+        /// </summary>
+        public long DownloadedBytes { set; get; } = 0;
+
+        /// <summary>
+        /// 下载结果
+        /// </summary>
+        public object Result { set; get; }
+
+
+        public BundleFileLoader(ResourceManager resourceManager, BundleInfo bundleInfo)
+        {
+            _resourceManager = resourceManager;
+            MainBundleInfo = bundleInfo;
+            Status = EStatus.None;
+        }
+
+        /// <summary>
+        /// 轮询更新
+        /// </summary>
+        public void Update()
+        {
+            if (_isDone)
+                return;
+
+            if (_loadBundleOp == null)
+                _loadBundleOp = MainBundleInfo.LoadBundleFile();
+
+            DownloadProgress = _loadBundleOp.DownloadProgress;
+            DownloadedBytes = _loadBundleOp.DownloadedBytes;
+            if (_loadBundleOp.IsDone == false)
+                return;
+
+            if (_loadBundleOp.Status == EOperationStatus.Succeed)
+            {
+                _isDone = true;
+                Status = EStatus.Succeed;
+                Result = _loadBundleOp.Result;
+            }
+            else
+            {
+                _isDone = true;
+                Status = EStatus.Failed;
+                LastError = _loadBundleOp.Error;
+            }
+        }
+
+        /// <summary>
+        /// 销毁
+        /// </summary>
+        public void Destroy()
+        {
+            IsDestroyed = true;
+
+            // Check fatal
+            if (RefCount > 0)
+                throw new Exception($"Bundle file loader ref is not zero : {MainBundleInfo.Bundle.BundleName}");
+            if (IsDone() == false)
+                throw new Exception($"Bundle file loader is not done : {MainBundleInfo.Bundle.BundleName}");
+
+            MainBundleInfo.UnloadBundleFile(Result);
+        }
+
+        /// <summary>
+        /// 引用（引用计数递加）
+        /// </summary>
+        public void Reference()
+        {
+            RefCount++;
+        }
+
+        /// <summary>
+        /// 释放（引用计数递减）
+        /// </summary>
+        public void Release()
+        {
+            RefCount--;
+        }
+
+        /// <summary>
+        /// 是否完毕（无论成功或失败）
+        /// </summary>
+        public bool IsDone()
+        {
+            return Status == EStatus.Succeed || Status == EStatus.Failed;
+        }
+
+        /// <summary>
+        /// 是否可以销毁
+        /// </summary>
+        public bool CanDestroy()
+        {
+            if (IsDone() == false)
+                return false;
+
+            return RefCount <= 0;
+        }
+
+        /// <summary>
+        /// 添加附属的资源提供者
+        /// </summary>
+        public void AddProvider(ProviderBase provider)
+        {
+            if (_providers.Contains(provider) == false)
+                _providers.Add(provider);
+        }
+
+        /// <summary>
+        /// 尝试销毁资源提供者
+        /// </summary>
+        public void TryDestroyProviders()
+        {
+            // 获取移除列表
+            _removeList.Clear();
+            foreach (var provider in _providers)
+            {
+                if (provider.CanDestroy())
+                {
+                    _removeList.Add(provider);
+                }
+            }
+
+            // 销毁资源提供者
+            foreach (var provider in _removeList)
+            {
+                _providers.Remove(provider);
+                provider.Destroy();
+            }
+
+            // 移除资源提供者
+            if (_removeList.Count > 0)
+            {
+                _resourceManager.RemoveBundleProviders(_removeList);
+                _removeList.Clear();
+            }
+        }
+
+        /// <summary>
+        /// 主线程等待异步操作完毕
+        /// </summary>
+        public void WaitForAsyncComplete()
+        {
+            while (true)
+            {
+                if (_loadBundleOp != null)
+                {
+                    if (_loadBundleOp.IsDone == false)
+                        _loadBundleOp.WaitForAsyncComplete();
+                }
+
+                // 驱动流程
+                Update();
+
+                // 完成后退出
+                if (IsDone())
+                    break;
+            }
+        }
+
+        /// <summary>
+        /// 终止下载任务
+        /// </summary>
+        public void AbortDownloadOperation()
+        {
+            if (_loadBundleOp != null)
+                _loadBundleOp.AbortDownloadOperation();
+        }
+    }
+}