81 lines
2.7 KiB
C#
81 lines
2.7 KiB
C#
//Written for games in the Heat Engine.
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//AirMech https://store.steampowered.com/app/206500
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//AirMech Wastelands https://store.steampowered.com/app/595770
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//AirMech Command https://store.steampowered.com/app/364630
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using System.IO;
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using System.IO.Compression;
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namespace Heat_Extractor
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{
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class Program
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{
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public static BinaryReader br;
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static MemoryStream nameTable = new();
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static void Main(string[] args)
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{
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br = new(File.OpenRead(args[0]));
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if (new string(br.ReadChars(4)) != "HPK\0")
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throw new System.Exception("This is not a Heat Engine HPK file.");
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br.ReadInt32();//1
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int fileCount = br.ReadInt32();
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int filesStart = br.ReadInt32();
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br.ReadInt32();//1
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br.ReadInt32();
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int nameSize = br.ReadInt32();
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br.ReadInt16();
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using (var ds = new DeflateStream(new MemoryStream(br.ReadBytes(nameSize - 2)), CompressionMode.Decompress))
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ds.CopyTo(nameTable);
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System.Collections.Generic.List<Subfile> subfiles = new();
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for (int i = 0; i < fileCount; i++)
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subfiles.Add(new());
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br.BaseStream.Position = filesStart;
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string path = Path.GetDirectoryName(args[0]) + "//" + Path.GetFileNameWithoutExtension(args[0]);
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foreach (Subfile file in subfiles)
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{
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Directory.CreateDirectory(path + "//" + Path.GetDirectoryName(file.name));
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FileStream fs = File.Create(path + "//" + file.name);
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if (file.sizeCompressed == file.sizeUncompressed)
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{
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BinaryWriter bw = new(fs);
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bw.Write(br.ReadBytes(file.sizeUncompressed));
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}
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else
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{
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br.ReadInt16();
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using (var ds = new DeflateStream(new MemoryStream(br.ReadBytes(file.sizeCompressed - 2)), CompressionMode.Decompress))
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ds.CopyTo(fs);
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}
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fs.Close();
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}
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}
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class Subfile
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{
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public int sizeCompressed = br.ReadInt32();
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public int start = br.ReadInt32();
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public int sizeUncompressed = br.ReadInt32();
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float unknown = br.ReadSingle();
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public string name = name(br.ReadInt32());
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}
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static string name(int start)
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{
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nameTable.Position = start;
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string name = "";
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byte x = (byte)nameTable.ReadByte();
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while (x != 0)
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{
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name += (char)x;
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x = (byte)nameTable.ReadByte();
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}
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return name;
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}
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}
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}
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