Push pkg stuff

File_Format_Library/FileFormats/Archives/PKG.cs

@@ -0,0 +1,101 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.IO;
+using System.Threading.Tasks;
+using Toolbox;
+using System.Windows.Forms;
+using Toolbox.Library;
+using Toolbox.Library.IO;
+
+namespace FirstPlugin
+{
+    public class PKG : IArchiveFile, IFileFormat, ILeaveOpenOnLoad
+    {
+        public FileType FileType { get; set; } = FileType.Archive;
+
+        public bool CanSave { get; set; }
+        public string[] Description { get; set; } = new string[] { "PKG" };
+        public string[] Extension { get; set; } = new string[] { "*.pkg" };
+        public string FileName { get; set; }
+        public string FilePath { get; set; }
+        public IFileInfo IFileInfo { get; set; }
+
+        public bool CanAddFiles { get; set; }
+        public bool CanRenameFiles { get; set; }
+        public bool CanReplaceFiles { get; set; }
+        public bool CanDeleteFiles { get; set; }
+
+        public bool Identify(System.IO.Stream stream)
+        {
+            return FileName.EndsWith(".pkg");
+        }
+
+        public Type[] Types
+        {
+            get
+            {
+                List<Type> types = new List<Type>();
+                return types.ToArray();
+            }
+        }
+
+        public List<FileEntry> files = new List<FileEntry>();
+
+        public IEnumerable<ArchiveFileInfo> Files => files;
+
+        public void ClearFiles() { files.Clear(); }
+
+        private System.IO.Stream _stream;
+        public void Load(System.IO.Stream stream)
+        {
+            _stream = stream;
+            using (var reader = new FileReader(stream, true))
+            {
+                reader.SetByteOrder(false);
+                uint headerSize = reader.ReadUInt32();
+                uint fileSize = reader.ReadUInt32();
+                uint numFiles = reader.ReadUInt32();
+
+                for (int i = 0; i < numFiles; i++)
+                {
+                    var file = new FileEntry();
+                    ulong nameHash = reader.ReadUInt64();
+                    uint fileStartOffset = reader.ReadUInt32();
+                    uint fileEndOffset = reader.ReadUInt32();
+
+                    uint size = fileEndOffset - fileStartOffset;
+
+                    file.FileName = nameHash.ToString();
+                    file.FileDataStream = new SubStream(reader.BaseStream,
+                        fileStartOffset, size);
+
+                    files.Add(file);
+                }
+            }
+        }
+
+        public void Unload()
+        {
+
+        }
+
+        public void Save(System.IO.Stream stream)
+        {
+        }
+
+        public bool AddFile(ArchiveFileInfo archiveFileInfo)
+        {
+            return false;
+        }
+
+        public bool DeleteFile(ArchiveFileInfo archiveFileInfo)
+        {
+            return false;
+        }
+
+        public class FileEntry : ArchiveFileInfo
+        {
+        }
+    }
+}