diff --git a/ArcFormats/ArcFormats.csproj b/ArcFormats/ArcFormats.csproj
index bcd729e9..c5b0819d 100644
--- a/ArcFormats/ArcFormats.csproj
+++ b/ArcFormats/ArcFormats.csproj
@@ -65,6 +65,8 @@
+
+
diff --git a/ArcFormats/CatSystem/ArcHG3.cs b/ArcFormats/CatSystem/ArcHG3.cs
new file mode 100644
index 00000000..c249249b
--- /dev/null
+++ b/ArcFormats/CatSystem/ArcHG3.cs
@@ -0,0 +1,106 @@
+//! \file ArcHG3.cs
+//! \date Mon Oct 12 22:34:11 2015
+//! \brief CatSystem2 image resource.
+//
+// Copyright (C) 2015 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;
+using System.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.IO;
+using System.Windows;
+using GameRes.Utility;
+using GameRes.Compression;
+
+namespace GameRes.Formats.CatSystem
+{
+ [Export(typeof(ArchiveFormat))]
+ public class Hg3Opener : ArchiveFormat
+ {
+ public override string Tag { get { return "HG3"; } }
+ public override string Description { get { return "CatSystem2 engine multi-image"; } }
+ public override uint Signature { get { return 0x332d4748; } } // 'HG-3'
+ public override bool IsHierarchic { get { return false; } }
+ public override bool CanCreate { get { return false; } }
+
+ public override ArcFile TryOpen (ArcView file)
+ {
+ var base_name = Path.GetFileNameWithoutExtension (file.Name);
+ var dir = new List();
+ long offset = 0xC;
+ int i = 0;
+ while (offset+0x14 < file.MaxOffset && file.View.AsciiEqual (offset+8, "stdinfo"))
+ {
+ uint section_size = file.View.ReadUInt32 (offset);
+ if (0 == section_size)
+ section_size = (uint)(file.MaxOffset - offset);
+ uint stdinfo_size = file.View.ReadUInt32 (offset+0x10);
+ if (file.View.AsciiEqual (offset+8+stdinfo_size, "img0000"))
+ {
+ var entry = new Entry
+ {
+ Name = string.Format ("{0}#{1:D4}.tga", base_name, i),
+ Type = "image",
+ Offset = offset + 8,
+ Size = section_size - 8,
+ };
+ dir.Add (entry);
+ }
+ offset += section_size;
+ ++i;
+ }
+ if (dir.Count < 2)
+ return null;
+ return new ArcFile (file, this, dir);
+ }
+
+ public override Stream OpenEntry (ArcFile arc, Entry entry)
+ {
+ // emulate TGA image
+ var offset = entry.Offset+8;
+ var info = new Hg3MetaData
+ {
+ HeaderSize = arc.File.View.ReadUInt32 (offset),
+ Width = arc.File.View.ReadUInt32 (offset+8),
+ Height = arc.File.View.ReadUInt32 (offset+0xC),
+ BPP = arc.File.View.ReadInt32 (offset+0x10),
+ OffsetX = arc.File.View.ReadInt32 (offset+0x14),
+ OffsetY = arc.File.View.ReadInt32 (offset+0x18),
+ CanvasWidth = arc.File.View.ReadUInt32 (offset+0x1C),
+ CanvasHeight = arc.File.View.ReadUInt32 (offset+0x20),
+ };
+ using (var input = arc.File.CreateStream (entry.Offset, entry.Size))
+ using (var reader = new Hg3Reader (input, info))
+ {
+ var pixels = reader.Unpack();
+ var header = new byte[0x12];
+ header[2] = 2;
+ LittleEndian.Pack ((short)info.OffsetX, header, 8);
+ LittleEndian.Pack ((short)info.OffsetY, header, 0xa);
+ LittleEndian.Pack ((ushort)info.Width, header, 0xc);
+ LittleEndian.Pack ((ushort)info.Height, header, 0xe);
+ header[0x10] = (byte)info.BPP;
+ return new PrefixStream (header, new MemoryStream (pixels));
+ }
+ }
+ }
+}