【m】框架大更新

Assets/03.YooAsset/Runtime/FileSystem/Operation/FSDownloadFileOperation.cs

@@ -0,0 +1,74 @@
+
+namespace YooAsset
+{
+    internal class DownloadFileOptions
+    {
+        /// <summary>
+        /// 失败后重试次数
+        /// </summary>
+        public readonly int FailedTryAgain;
+
+        /// <summary>
+        /// 主资源地址
+        /// </summary>
+        public string MainURL { private set; get; }
+
+        /// <summary>
+        /// 备用资源地址
+        /// </summary>
+        public string FallbackURL { private set; get; }
+
+        /// <summary>
+        /// 拷贝的本地文件路径
+        /// </summary>
+        public string ImportFilePath { set; get; }
+
+        public DownloadFileOptions(int failedTryAgain)
+        {
+            FailedTryAgain = failedTryAgain;
+        }
+
+        /// <summary>
+        /// 设置下载地址
+        /// </summary>
+        public void SetURL(string mainURL, string fallbackURL)
+        {
+            MainURL = mainURL;
+            FallbackURL = fallbackURL;
+        }
+
+        /// <summary>
+        /// 是否有效
+        /// </summary>
+        public bool IsValid()
+        {
+            if (string.IsNullOrEmpty(MainURL) || string.IsNullOrEmpty(FallbackURL))
+                return false;
+
+            return true;
+        }
+    }
+
+    internal abstract class FSDownloadFileOperation : AsyncOperationBase
+    {
+        public PackageBundle Bundle { private set; get; }
+
+        /// <summary>
+        /// 当前下载的字节数
+        /// </summary>
+        public long DownloadedBytes { protected set; get; }
+
+        /// <summary>
+        /// 当前下载进度（0f - 1f）
+        /// </summary>
+        public float DownloadProgress { protected set; get; }
+
+
+        public FSDownloadFileOperation(PackageBundle bundle)
+        {
+            Bundle = bundle;
+            DownloadedBytes = 0;
+            DownloadProgress = 0;
+        }
+    }
+}