From 3866351fd00d258c797e070093cb02566c46f872 Mon Sep 17 00:00:00 2001
From: morkt <morkt@users.noreply.github.com>
Date: Fri, 6 Jul 2018 15:39:39 +0400
Subject: [PATCH] (Legacy): BND archives.

---
 Legacy/Tetratech/ArcBND.cs | 70 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 Legacy/Tetratech/ArcBND.cs

diff --git a/Legacy/Tetratech/ArcBND.cs b/Legacy/Tetratech/ArcBND.cs
new file mode 100644
index 00000000..9f986494
--- /dev/null
+++ b/Legacy/Tetratech/ArcBND.cs
@@ -0,0 +1,70 @@
+//! \file       ArcBND.cs
+//! \date       2018 Jul 03
+//! \brief      Tetratech resource archive.
+//
+// Copyright (C) 2018 by morkt
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//
+
+using System.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.IO;
+
+// [010309][Tetratech] Kyouiku Jisshuu 2 ~Joshikousei Maniacs~
+
+namespace GameRes.Formats.Tetratech
+{
+    [Export(typeof(ArchiveFormat))]
+    public class BndOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "BND/IDX"; } }
+        public override string Description { get { return "Tetratech resource archive"; } }
+        public override uint     Signature { get { return 0; } }
+        public override bool  IsHierarchic { get { return false; } }
+        public override bool      CanWrite { get { return false; } }
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            if (!file.Name.HasExtension (".BND"))
+                return null;
+            var idx_name = Path.ChangeExtension (file.Name, "idx");
+            if (!VFS.FileExists (idx_name))
+                return null;
+            using (var idx = VFS.OpenBinaryStream (idx_name))
+            {
+                int count = (int)idx.Length / 0x18;
+                if (!IsSaneCount (count) || count * 0x18 != idx.Length)
+                    return null;
+                var dir = new List<Entry> (count);
+                for (int i = 0; i < count; ++i)
+                {
+                    var name = idx.ReadCString (0x10);
+                    var entry = FormatCatalog.Instance.Create<Entry> (name);
+                    entry.Size   = idx.ReadUInt32();
+                    entry.Offset = idx.ReadUInt32();
+                    if (!entry.CheckPlacement (file.MaxOffset))
+                        return null;
+                    dir.Add (entry);
+                }
+                return new ArcFile (file, this, dir);
+            }
+        }
+    }
+}