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Code Issues Releases Wiki Activity

Added string table loading support

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This commit is contained in:
Tim Sarbin 2018-11-23 17:42:01 -05:00
parent eb27036e46
commit caa9c88d4e
2 changed files with 70 additions and 1 deletions
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2
OpenDiablo2.Common/ResourcePaths.cs
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@ -97,5 +97,7 @@ namespace OpenDiablo2.Common
// --- Data ---
// TODO: Doesn't sound right :)
public static string EnglishTable = "data\\local\\lng\\eng\\English.txt";
public static string ExpansionStringTable = "data\\local\\lng\\eng\\expansionstring.tbl";
}
}

69
OpenDiablo2.Core/TextDictionary.cs
View File

@ -1,5 +1,6 @@
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
@ -8,6 +9,16 @@ using OpenDiablo2.Common.Interfaces;
namespace OpenDiablo2.Core
{
struct HashTableEntry
{
public bool IsActive { get; set; }
public UInt16 Index { get; set; }
public UInt32 HashValue { get; set; }
public UInt32 IndexString { get; set; }
public UInt32 NameString { get; set; }
public UInt16 NameLength { get; set; }
}
public sealed class TextDictionary : ITextDictionary
{
private readonly IMPQProvider mpqProvider;
@ -18,6 +29,62 @@ namespace OpenDiablo2.Core
{
this.mpqProvider = mpqProvider;
LoadDictionary();
LoadExpansionTable();
}
private void LoadExpansionTable()
{
using (var stream = mpqProvider.GetStream(ResourcePaths.ExpansionStringTable))
using (var br = new BinaryReader(stream))
{
br.ReadBytes(2); // CRC
var numberOfElements = br.ReadUInt16();
var hashTableSize = br.ReadUInt32();
br.ReadByte(); // Version (always 0)
var stringOffset = br.ReadUInt32();
var numberOfLoopsOffset = br.ReadUInt32();
var fileSize = br.ReadUInt32();
var elementIndexes = new List<UInt16>();
for (var elementIndex = 0; elementIndex < numberOfElements; elementIndex++)
{
elementIndexes.Add(br.ReadUInt16());
}
var hashEntries = new List<HashTableEntry>();
for (var hashEntryIndex = 0; hashEntryIndex < hashTableSize; hashEntryIndex++)
{
hashEntries.Add(new HashTableEntry
{
IsActive = br.ReadByte() == 1,
Index = br.ReadUInt16(),
HashValue = br.ReadUInt32(),
IndexString = br.ReadUInt32(),
NameString = br.ReadUInt32(),
NameLength = br.ReadUInt16()
});
}
foreach (var hashEntry in hashEntries.Where(x => x.IsActive))
{
stream.Seek(hashEntry.NameString, SeekOrigin.Begin);
var value = Encoding.ASCII.GetString(br.ReadBytes(hashEntry.NameLength - 1));
stream.Seek(hashEntry.IndexString, SeekOrigin.Begin);
var key = "";
while(true)
{
var b = br.ReadByte();
if (b == 0)
break;
key += (char)b;
}
lookupTable[key] = value;
}
}
}
private void LoadDictionary()
@ -25,7 +92,7 @@ namespace OpenDiablo2.Core
var text = mpqProvider.GetTextFile(ResourcePaths.EnglishTable).First();
var rowstoLoad = text.Where(x => x.Split(',').Count() == 3).Select(x => x.Split(',').Select(z => z.Trim()).ToArray());
foreach(var row in rowstoLoad)
foreach (var row in rowstoLoad)
lookupTable[row[1]] = !(row[2].StartsWith("\"") && row[2].EndsWith("\"")) ? row[2] : row[2].Substring(1, row[2].Length - 2);
}