internal void ReadItems()
{
if (items.Any())
{
throw new InvalidOperationException();
}
using (var reader = cache.CreateReader(cache.MetadataTranslator))
{
reader.Seek(TagClassDataPointer.Address, SeekOrigin.Begin);
Classes.AddRange(reader.ReadEnumerable <TagClass>(TagClassCount));
reader.Seek(TagDataPointer.Address, SeekOrigin.Begin);
for (int i = 0; i < TagCount; i++)
{
//every Reach map has an empty tag
var item = reader.ReadObject(new IndexItem(cache, i));
if (item.ClassIndex < 0)
{
continue;
}
items.Add(i, item);
if (item.ClassCode != CacheFactory.ScenarioClass && CacheFactory.SystemClasses.Contains(item.ClassCode))
{
sysItems.Add(item.ClassCode, item);
}
}
reader.Seek(cache.Header.FileTableIndexPointer.Address, SeekOrigin.Begin);
var indices = reader.ReadEnumerable <int>(TagCount).ToArray();
reader.Seek(cache.Header.FileTablePointer.Address, SeekOrigin.Begin);
var decrypted = reader.ReadAesBytes(cache.Header.FileTableSize, cache.CacheType == CacheType.HaloReachBeta ? CacheFile.BetaKey : CacheFile.FileNamesKey);
using (var ms = new MemoryStream(decrypted))
using (var tempReader = new EndianReader(ms))
{
for (int i = 0; i < TagCount; i++)
{
if (indices[i] == -1)
{
Filenames.Add(i, null);
continue;
}
tempReader.Seek(indices[i], SeekOrigin.Begin);
Filenames.Add(i, tempReader.ReadNullTerminatedString());
}
}
}
try
{
sysItems[CacheFactory.ScenarioClass] = items.Values.Single(i => i.ClassCode == CacheFactory.ScenarioClass && i.FullPath == cache.Header.ScenarioName);
}
catch { throw Exceptions.AmbiguousScenarioReference(); }
}
internal void ReadItems()
{
if (items.Any())
{
throw new InvalidOperationException();
}
using (var reader = cache.CreateReader(cache.MetadataTranslator, cache.PointerExpander))
{
reader.Seek(TagClassDataPointer.Address, SeekOrigin.Begin);
Classes.AddRange(reader.ReadEnumerable <TagClass>(TagClassCount));
reader.Seek(TagDataPointer.Address, SeekOrigin.Begin);
for (int i = 0; i < TagCount; i++)
{
var item = reader.ReadObject(new IndexItem(cache, i));
if (item.ClassIndex < 0)
{
continue;
}
items.Add(i, item);
if (item.ClassCode != CacheFactory.ScenarioClass && CacheFactory.SystemClasses.Contains(item.ClassCode))
{
sysItems.Add(item.ClassCode, item);
}
}
var play = sysItems["play"];
if (play.MetaPointer.Value == 0)
{
play.MetaPointer = new Pointer(sysItems["zone"].MetaPointer.Value + 28, cache.MetadataTranslator);
}
reader.Seek(cache.Header.FileTableIndexPointer.Address, SeekOrigin.Begin);
var indices = reader.ReadEnumerable <int>(TagCount).ToArray();
reader.Seek(cache.Header.FileTablePointer.Address, SeekOrigin.Begin);
using (var tempReader = reader.CreateVirtualReader())
{
for (int i = 0; i < TagCount; i++)
{
if (indices[i] == -1)
{
Filenames.Add(i, null);
continue;
}
tempReader.Seek(indices[i], SeekOrigin.Begin);
Filenames.Add(i, tempReader.ReadNullTerminatedString());
}
}
}
try
{
sysItems[CacheFactory.ScenarioClass] = items.Values.Single(i => i.ClassCode == CacheFactory.ScenarioClass && i.FullPath == cache.Header.ScenarioName);
}
catch { throw Exceptions.AmbiguousScenarioReference(); }
}
internal void ReadItems()
{
if (items.Any())
{
throw new InvalidOperationException();
}
using (var reader = cache.CreateReader(cache.MetadataTranslator))
{
reader.Seek(TagClassDataPointer.Address, SeekOrigin.Begin);
Classes.AddRange(reader.ReadEnumerable <TagClass>(TagClassCount));
reader.Seek(TagDataPointer.Address, SeekOrigin.Begin);
for (int i = 0; i < TagCount; i++)
{
var item = reader.ReadObject(new IndexItem(cache, i));
if (item.ClassIndex < 0)
{
continue;
}
items.Add(i, item);
if (item.ClassCode != CacheFactory.ScenarioClass && CacheFactory.SystemClasses.Contains(item.ClassCode))
{
sysItems.Add(item.ClassCode, item);
}
}
// hack to redirect any play tag requests to the start of the zone tag when there is no play tag
var play = sysItems["play"];
if (play.MetaPointer.Value == 0)
{
play.MetaPointer = new Pointer(sysItems["zone"].MetaPointer.Value + 28, cache.MetadataTranslator);
}
reader.Seek(cache.Header.FileTableIndexPointer.Address, SeekOrigin.Begin);
var indices = reader.ReadEnumerable <int>(TagCount).ToArray();
reader.Seek(cache.Header.FileTablePointer.Address, SeekOrigin.Begin);
var decrypted = reader.ReadAesBytes(cache.Header.FileTableSize, CacheFile.FileNamesKey);
using (var ms = new MemoryStream(decrypted))
using (var tempReader = new EndianReader(ms))
{
for (int i = 0; i < TagCount; i++)
{
if (indices[i] == -1)
{
Filenames.Add(i, null);
continue;
}
tempReader.Seek(indices[i], SeekOrigin.Begin);
Filenames.Add(i, tempReader.ReadNullTerminatedString());
}
}
}
try
{
sysItems[CacheFactory.ScenarioClass] = items.Values.Single(i => i.ClassCode == CacheFactory.ScenarioClass && i.FullPath == cache.Header.ScenarioName);
}
catch { throw Exceptions.AmbiguousScenarioReference(); }
}
