private Tag LoadTag(string path)
{
int index = LocateTagByID(inverseDictionary[path]);
Tag tag = new Tag(tags[index].Type);
Bsp bsp = null;
string[] stringArray = strings.ToArray();
switch (tags[index].Type)
{
case StructureBsp:
bsp = GetBsp(tags[index].Identifier);
map.Position = bsp.BspOffset;
tag.ReadData(reader, shared, bsp.Magic - bsp.BspHeaderOffset, dictionary, stringArray, coconuts, globals, path);
break;
case StructureLightmap:
bsp = GetBsp(tags[index].Identifier);
map.Position = bsp.LightmapOffset;
tag.ReadData(reader, shared, bsp.Magic - bsp.BspHeaderOffset, dictionary, stringArray, coconuts, globals, path);
break;
default:
map.Position = unchecked (tags[index].Offset - magic);
tag.ReadData(reader, shared, magic, dictionary, stringArray, coconuts, globals, path);
break;
}
return(tag);
}
public byte[] GetTag(string path)
{
Tag tag = LoadTag(path);
TagFile tf = new TagFile(tag.GetTagData(), "Bungie", "Obtained from Halo 2 Xbox.", typeTable.LocateEntryByTypecode(tag.Type).FourCC, "????", "????", Halo2XboxGameDefinition.TagIdentifierStatic);
tf.AddAttachment(ExtraTagDataAttachmentName);
tf.AddAttachmentRevision(ExtraTagDataAttachmentName, tag.GetExtraData(), 1.0f, CompressionStyle.GZip);
return(tf.ToBytes());
}
public void Load(string file)
{
filename = file;
string directory = Path.GetDirectoryName(file) + '\\';
#region open maps
shared = new SharedMaps(new FileStream(directory + MainMenu, FileMode.Open, FileAccess.Read, FileShare.ReadWrite), new FileStream(directory + Shared, FileMode.Open, FileAccess.Read, FileShare.ReadWrite), new FileStream(directory + SinglePlayerShared, FileMode.Open, FileAccess.Read, FileShare.ReadWrite));
map = new FileStream(file, FileMode.Open, FileAccess.ReadWrite, FileShare.Read);
reader = new BinaryReader(map);
writer = new BinaryWriter(map);
#endregion
#region header and index
header = Reinterpret.Memory <MapHeader>(reader.ReadBytes(Marshal.SizeOf(typeof(MapHeader))));
map.Position = header.IndexOffset;
index = Reinterpret.Memory <IndexHeader>(reader.ReadBytes(Marshal.SizeOf(typeof(IndexHeader))));
magic = (index.MagicConstant - header.IndexOffset - Marshal.SizeOf(typeof(IndexHeader))) + (header.AllExceptRawLength - header.IndexAndMetaLength - header.IndexLength);
// each "TagType" is three dwords
map.Position += 12 * index.TagTypeCount;
tags = new List <IndexElement>(index.TagCount);
for (int i = 0; i < index.TagCount; i++)
{
tags.Add(Reinterpret.Memory <IndexElement>(reader.ReadBytes(Marshal.SizeOf(typeof(IndexElement)))));
}
#endregion
#region bsps
int bspCount = 0;
int bspOffset = 0;
if (header.HeadSignature == HeadSignature)
{
map.Position = 528 + unchecked (tags[LocateTagByID(index.ScenarioIdentifier)].Offset - magic);
bspCount = reader.ReadInt32();
bspOffset = unchecked (reader.ReadInt32() - magic);
bsps = new Bsp[bspCount];
for (int i = 0; i < bspCount; i++)
{
bsps[i] = new Bsp();
map.Position = bsps[i].LocationInScenario = bspOffset + 68 * i;
bsps[i].BspHeaderOffset = reader.ReadInt32();
int totalBspSize = reader.ReadInt32();
bsps[i].Magic = reader.ReadInt32();
map.Position += 8;
bsps[i].BspID = reader.ReadInt32();
map.Position += 4;
bsps[i].LightmapID = reader.ReadInt32();
/*
* HEADER FORMAT
* total size
* pointer to bsp location
* pointer to lightmap location
* 'sbsp'
*/
map.Position = bsps[i].BspHeaderOffset;
int inHeaderBspSize = reader.ReadInt32();
int inHeaderBspOffset = reader.ReadInt32();
int lightmapOffset = reader.ReadInt32();
bsps[i].BspOffset = (inHeaderBspOffset - bsps[i].Magic) + bsps[i].BspHeaderOffset;
if (bsps[i].LightmapID == -1)
{
bsps[i].BspSize = inHeaderBspSize;
}
else
{
bsps[i].LightmapOffset = unchecked (lightmapOffset - bsps[i].Magic) + bsps[i].BspHeaderOffset;
bsps[i].BspSize = bsps[i].LightmapOffset - bsps[i].BspOffset;
bsps[i].LightmapSize = totalBspSize - bsps[i].BspSize;
}
}
}
#endregion
#region strings
strings = new List <string>(header.StringIdCount);
map.Position = header.StringIdTableOffset;
for (int i = 0; i < header.StringIdCount; i++)
{
strings.Add(String.Empty);
while (true)
{
byte character = reader.ReadByte();
if (character == 0)
{
break;
}
else
{
strings[i] += Convert.ToChar(character);
}
}
}
string[] stringArray = strings.ToArray();
#endregion
#region names
map.Position = header.NameTableOffset;
names = new List <string>(header.NameTableCount);
dictionary = new Dictionary <int, string>(header.NameTableCount);
inverseDictionary = new Dictionary <string, int>(header.NameTableCount);
for (int i = 0; i < header.NameTableCount; i++)
{
names.Add(String.Empty);
while (true)
{
byte character = reader.ReadByte();
if (character == 0)
{
break;
}
else
{
names[i] += Convert.ToChar(character);
}
}
string dictionaryName = names[i] + '.' + Singleton <ClassManager> .Instance.GetClassByID(tags[i].Type).Name;
dictionary.Add(tags[i].Identifier, dictionaryName);
inverseDictionary.Add(dictionaryName, tags[i].Identifier);
}
#endregion
#region globals and coconuts
if (header.HeadSignature == HeadSignature)
{
map.Position = unchecked (tags[LocateTagByID(index.GlobalsIdentifier)].Offset - magic);
globals = new Globals(reader);
map.Position = unchecked (tags[index.TagCount - 1].Offset - magic);
coconuts = new Coconuts(reader, shared, magic, stringArray);
}
#endregion
#region composition
if (header.HeadSignature == HeadSignature)
{
for (int i = 0; i < index.TagCount; i++)
{
int result;
switch (tags[i].Type)
{
case Animation:
map.Position = unchecked (tags[i].Offset - magic);
result = Tag.GetFirstInternalResourceOffset(reader, Animation, magic);
if (result != -1)
{
if (result < animationStart || animationStart == -1)
{
animationStart = result;
}
}
break;
case Decorators:
map.Position = unchecked (tags[i].Offset - magic);
result = Tag.GetFirstInternalResourceOffset(reader, Decorators, magic);
if (result != -1)
{
if (result < decoratorStart || decoratorStart == -1)
{
decoratorStart = result;
}
}
break;
case ParticleModel:
map.Position = unchecked (tags[i].Offset - magic);
result = Tag.GetFirstInternalResourceOffset(reader, ParticleModel, magic);
if (result != -1)
{
if (result < particleModelStart || particleModelStart == -1)
{
particleModelStart = result;
}
}
break;
case WeatherSystem:
map.Position = unchecked (tags[i].Offset - magic);
result = Tag.GetFirstInternalResourceOffset(reader, WeatherSystem, magic);
if (result != -1)
{
if (result < weatherStart || weatherStart == -1)
{
weatherStart = result;
}
}
break;
case RenderModel:
map.Position = unchecked (tags[i].Offset - magic);
result = Tag.GetFirstInternalResourceOffset(reader, RenderModel, magic);
if (result != -1)
{
if (result < modelStart || modelStart == -1)
{
modelStart = result;
}
}
break;
}
}
// this is (should be anyways) constant
soundStart = Marshal.SizeOf(typeof(MapHeader));
// this is a calculated value
bitmapStart = header.CrazyDataOffset + header.CrazyDataSize;
for (int i = 0; i < bspCount; i++)
{
Bsp bsp = bsps[i];
if (bsp.BspOffset < bspMetaStart || bspMetaStart == -1)
{
bspMetaStart = bsp.BspHeaderOffset;
}
else if (bsp.LightmapOffset < bspMetaStart || bspMetaStart == -1)
{
bspMetaStart = bsp.BspHeaderOffset;
}
int result;
if (bsp.BspID != -1)
{
reader.BaseStream.Position = bsp.BspOffset;
result = Tag.GetFirstInternalResourceOffset(reader, StructureBsp, bsp.Magic - bsp.BspHeaderOffset);
if (result != -1)
{
if (result < bspRawStart || bspRawStart == -1 && result != -1)
{
bspRawStart = result;
}
}
}
if (bsp.LightmapID != -1)
{
reader.BaseStream.Position = bsp.LightmapOffset;
result = Tag.GetFirstInternalResourceOffset(reader, StructureLightmap, bsp.Magic - bsp.BspHeaderOffset);
if (result != -1)
{
if (result < bspRawStart || bspRawStart == -1)
{
bspRawStart = result;
}
}
}
}
foreach (Coconuts.ExtraInfo extraInfo in coconuts.ExtraInfos)
{
if (extraInfo.ResourceBlock.RawSize > 0)
{
uint encoded = Conversion.ToUInt(extraInfo.ResourceBlock.RawOffset);
if ((encoded & 0xc0000000) == 0)
{
if (extraInfo.ResourceBlock.RawOffset < coconutsModelStart || coconutsModelStart == -1)
{
coconutsModelStart = extraInfo.ResourceBlock.RawOffset;
}
}
}
}
if (bspMetaStart < 0)
{
bspMetaStart = header.StringIdPaddedOffset;
}
if (animationStart < 0)
{
animationStart = bspMetaStart;
}
if (coconutsModelStart < 0)
{
coconutsModelStart = animationStart;
}
if (particleModelStart < 0)
{
particleModelStart = coconutsModelStart;
}
if (decoratorStart < 0)
{
decoratorStart = particleModelStart;
}
if (weatherStart < 0)
{
weatherStart = decoratorStart;
}
if (bspRawStart < 0)
{
bspRawStart = weatherStart;
}
if (modelStart < 0)
{
modelStart = bspRawStart;
}
// these are all duplicates
stringPaddedStart = header.StringIdPaddedOffset;
stringIndexStart = header.StringIdIndexOffset;
stringTableStart = header.StringIdTableOffset;
nameTableStart = header.NameTableOffset;
nameIndexStart = header.NameIndexOffset;
crazyStart = header.CrazyDataOffset;
// this can be calculated a multitude of ways
unicodeStart = header.NameIndexOffset + header.NameTableCount * sizeof(int);
}
#endregion
valid = true;
}