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https://github.com/sampletext32/ParkanPlayground.git
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Allow to view cp .dat in UI
This commit is contained in:
12
CpDatLib/CpDatEntry.cs
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12
CpDatLib/CpDatEntry.cs
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namespace CpDatLib;
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public record CpDatEntry(
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string ArchiveFile,
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string ArchiveEntryName,
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int Magic1,
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int Magic2,
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string Description,
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int Magic3,
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int ChildCount, // игра не хранит это число в объекте, но оно есть в файле
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List<CpDatEntry> Children
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);
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5
CpDatLib/CpDatLib.csproj
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5
CpDatLib/CpDatLib.csproj
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<Project Sdk="Microsoft.NET.Sdk">
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<ItemGroup>
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<ProjectReference Include="..\Common\Common.csproj" />
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</ItemGroup>
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</Project>
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3
CpDatLib/CpDatParseResult.cs
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3
CpDatLib/CpDatParseResult.cs
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namespace CpDatLib;
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public record CpDatParseResult(CpDatScheme? Scheme, string? Error);
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68
CpDatLib/CpDatParser.cs
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68
CpDatLib/CpDatParser.cs
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using Common;
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namespace CpDatLib;
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public class CpDatParser
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{
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public static CpDatParseResult Parse(string filePath)
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{
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Span<byte> f0f1 = stackalloc byte[4];
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using var fs = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read);
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if (fs.Length < 8)
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return new CpDatParseResult(null, "File too small to be a valid \"cp\" .dat file.");
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fs.ReadExactly(f0f1);
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if (f0f1[0] != 0xf1 || f0f1[1] != 0xf0)
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{
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return new CpDatParseResult(null, "File does not start with expected header bytes f1_f0");
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}
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var schemeType = (SchemeType)fs.ReadInt32LittleEndian();
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var entryLength = 0x6c + 4; // нам нужно прочитать 0x6c (108) байт - это root, и ещё 4 байта - кол-во вложенных объектов
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if ((fs.Length - 8) % entryLength != 0)
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{
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return new CpDatParseResult(null, "File size is not valid according to expected entry length.");
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}
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CpDatEntry root = ReadEntryRecursive(fs);
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var scheme = new CpDatScheme(schemeType, root);
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return new CpDatParseResult(scheme, null);
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}
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private static CpDatEntry ReadEntryRecursive(FileStream fs)
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{
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var str1 = fs.ReadNullTerminatedString();
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fs.Seek(32 - str1.Length - 1, SeekOrigin.Current); // -1 ignore null terminator
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var str2 = fs.ReadNullTerminatedString();
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fs.Seek(32 - str2.Length - 1, SeekOrigin.Current); // -1 ignore null terminator
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var magic1 = fs.ReadInt32LittleEndian();
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var magic2 = fs.ReadInt32LittleEndian();
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var descriptionString = fs.ReadNullTerminatedString();
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fs.Seek(32 - descriptionString.Length - 1, SeekOrigin.Current); // -1 ignore null terminator
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var magic3 = fs.ReadInt32LittleEndian();
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// игра не читает количество внутрь схемы, вместо этого она сразу рекурсией читает нужно количество вложенных объектов
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var childCount = fs.ReadInt32LittleEndian();
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List<CpDatEntry> children = new List<CpDatEntry>(childCount);
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for (var i = 0; i < childCount; i++)
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{
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var child = ReadEntryRecursive(fs);
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children.Add(child);
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}
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return new CpDatEntry(str1, str2, magic1, magic2, descriptionString, magic3, childCount, Children: children);
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}
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}
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3
CpDatLib/CpDatScheme.cs
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3
CpDatLib/CpDatScheme.cs
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namespace CpDatLib;
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public record CpDatScheme(SchemeType Type, CpDatEntry Root);
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29
CpDatLib/CpEntryType.cs
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29
CpDatLib/CpEntryType.cs
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namespace CpDatLib;
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public enum SchemeType : uint
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{
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ClassBuilding = 0x80000000,
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ClassRobot = 0x01000000,
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ClassAnimal = 0x20000000,
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BunkerSmall = 0x80010000,
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BunkerMedium = 0x80020000,
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BunkerLarge = 0x80040000,
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Generator = 0x80000002,
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Mine = 0x80000004,
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Storage = 0x80000008,
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Plant = 0x80000010,
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Hangar = 0x80000040,
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TowerMedium = 0x80100000,
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TowerLarge = 0x80200000,
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MainTeleport = 0x80000200,
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Institute = 0x80000400,
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Bridge = 0x80001000,
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Ruine = 0x80002000,
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RobotTransport = 0x01002000,
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RobotBuilder = 0x01004000,
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RobotBattleunit = 0x01008000,
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RobotHq = 0x01010000,
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RobotHero = 0x01020000,
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}
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