using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
//using System.Diagnostics; //remove this later
namespace Unity_Studio
{
public class AssetsFile
{
public EndianStream a_Stream;
public string filePath;
public int fileGen;
public string m_Version = "2.5.0f5";
public int[] version = new int[4] { 0, 0, 0, 0 };
public string[] buildType;
public int platform = 100663296;
//public EndianType endianType = EndianType.BigEndian;
//public List<AssetPreloadData> preloadTable = new List<AssetPreloadData>();
public Dictionary<long, AssetPreloadData> preloadTable = new Dictionary<long, AssetPreloadData>();
public Dictionary<long, GameObject> GameObjectList = new Dictionary<long, GameObject>();
public Dictionary<long, Transform> TransformList = new Dictionary<long, Transform>();
public List<AssetPreloadData> exportableAssets = new List<AssetPreloadData>();
public List<UnityShared> sharedAssetsList = new List<UnityShared>() {new UnityShared()};
private ClassIDReference UnityClassID = new ClassIDReference();
public SortedDictionary<int, ClassStrStruct> ClassStructures = new SortedDictionary<int, ClassStrStruct>();
private bool baseDefinitions = false;
public class UnityShared
{
public int Index = -1; //actual index in main list
public string aName = "";
public string fileName = "";
}
public AssetsFile(string fileName, EndianStream fileStream)
{
//if (memFile != null) { Stream = new EndianStream(memFile, endianType); }
//else { Stream = new EndianStream(File.OpenRead(fileName), endianType); }
a_Stream = fileStream;
filePath = fileName;
int tableSize = a_Stream.ReadInt32();
int dataEnd = a_Stream.ReadInt32();
fileGen = a_Stream.ReadInt32();
int dataOffset = a_Stream.ReadInt32();
sharedAssetsList[0].fileName = Path.GetFileName(fileName); //reference itself because sharedFileIDs start from 1
switch (fileGen)
{
case 6:
{
a_Stream.Position = (dataEnd - tableSize);
a_Stream.Position += 1;
break;
}
case 7://Unity 3 beta
{
a_Stream.Position = (dataEnd - tableSize);
a_Stream.Position += 1;
m_Version = a_Stream.ReadStringToNull();
break;
}
case 8:
{
a_Stream.Position = (dataEnd - tableSize);
a_Stream.Position += 1;
m_Version = a_Stream.ReadStringToNull();
platform = a_Stream.ReadInt32();
break;
}
case 9:
{
a_Stream.Position += 4;//azero
m_Version = a_Stream.ReadStringToNull();
platform = a_Stream.ReadInt32();
break;
}
case 14:
case 15://not fully tested!
{
a_Stream.Position += 4;//azero
m_Version = a_Stream.ReadStringToNull();
platform = a_Stream.ReadInt32();
baseDefinitions = a_Stream.ReadBoolean();
break;
}
default:
{
//MessageBox.Show("Unsupported Unity version!", "Unity Studio Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
}
if (platform > 255 || platform < 0)
{
byte[] b32 = BitConverter.GetBytes(platform);
Array.Reverse(b32);
platform = BitConverter.ToInt32(b32, 0);
//endianType = EndianType.LittleEndian;
a_Stream.endian = EndianType.LittleEndian;
}
/*Platform list:
-2: unitypackage
4: OSX
5: PC
6: Web
7: Web_streamed
9: iOS
10: PS3(big)
11: Xbox360(big)
13: Android
16: Google_NaCl
21: WP8
25: Linux
*/
int baseCount = a_Stream.ReadInt32();
for (int i = 0; i < baseCount; i++)
{
if (fileGen < 14)
{
int classID = a_Stream.ReadInt32();
string baseType = a_Stream.ReadStringToNull();
string baseName = a_Stream.ReadStringToNull();
a_Stream.Position += 20;
int memberCount = a_Stream.ReadInt32();
StringBuilder cb = new StringBuilder();
for (int m = 0; m < memberCount; m++) { readBase(cb, 1); }
var aClass = new ClassStrStruct() { ID = classID, Text = (baseType + " " + baseName), members = cb.ToString() };
aClass.SubItems.Add(classID.ToString());
ClassStructures.Add(classID, aClass);
}
else { readBase5(); }
}
if (fileGen >= 7 && fileGen < 14) {a_Stream.Position += 4;}//azero
int assetCount = a_Stream.ReadInt32();
#region asset preload table
string assetIDfmt = "D" + assetCount.ToString().Length.ToString(); //format for unique ID
for (int i = 0; i < assetCount; i++)
{
//each table entry is aligned individually, not the whole table
if (fileGen >= 14) { a_Stream.AlignStream(4); }
AssetPreloadData asset = new AssetPreloadData();
if (fileGen < 14) { asset.m_PathID = a_Stream.ReadInt32(); }
else { asset.m_PathID = a_Stream.ReadInt64(); }
asset.Offset = a_Stream.ReadInt32();
asset.Offset += dataOffset;
asset.Size = a_Stream.ReadInt32();
asset.Type1 = a_Stream.ReadInt32();
asset.Type2 = a_Stream.ReadUInt16();
a_Stream.Position += 2;
if (fileGen >= 15)
{
byte unknownByte = a_Stream.ReadByte();
//this is a single byte, not an int32
//the next entry is aligned after this
//but not the last!
if (unknownByte != 0)
{
bool investigate = true;
}
}
asset.TypeString = asset.Type2.ToString();
if (UnityClassID.Names[asset.Type2] != null)
{
asset.TypeString = UnityClassID.Names[asset.Type2];
}
asset.uniqueID = i.ToString(assetIDfmt);
asset.exportSize = asset.Size;
asset.sourceFile = this;
preloadTable.Add(asset.m_PathID, asset);
#region read BuildSettings to get version for unity 2.x files
if (asset.Type2 == 141 && fileGen == 6)
{
long nextAsset = a_Stream.Position;
BuildSettings BSettings = new BuildSettings(asset);
m_Version = BSettings.m_Version;
a_Stream.Position = nextAsset;
}
#endregion
}
#endregion
buildType = m_Version.Split(new string[] { ".", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9" }, StringSplitOptions.RemoveEmptyEntries);
string[] strver = (m_Version.Split(new string[] { ".", "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "\n" }, StringSplitOptions.RemoveEmptyEntries));
version = Array.ConvertAll(strver, int.Parse);
if (fileGen >= 14)
{
//this looks like a list of assets that need to be preloaded in memory before anytihng else
int someCount = a_Stream.ReadInt32();
for (int i = 0; i < someCount; i++)
{
int num1 = a_Stream.ReadInt32();
a_Stream.AlignStream(4);
long m_PathID = a_Stream.ReadInt64();
}
}
int sharedFileCount = a_Stream.ReadInt32();
for (int i = 0; i < sharedFileCount; i++)
{
UnityShared shared = new UnityShared();
shared.aName = a_Stream.ReadStringToNull();
a_Stream.Position += 20;
string sharedFileName = a_Stream.ReadStringToNull(); //relative path
shared.fileName = sharedFileName.Replace("/", "\\");
sharedAssetsList.Add(shared);
}
}
private void readBase(StringBuilder cb, int level)
{
string varType = a_Stream.ReadStringToNull();
string varName = a_Stream.ReadStringToNull();
//a_Stream.Position += 20;
int size = a_Stream.ReadInt32();
int index = a_Stream.ReadInt32();
int isArray = a_Stream.ReadInt32();
int num0 = a_Stream.ReadInt32();
int num1 = a_Stream.ReadInt16();
int num2 = a_Stream.ReadInt16();
int childrenCount = a_Stream.ReadInt32();
//Debug.WriteLine(baseFormat + " " + baseName + " " + childrenCount);
cb.AppendFormat("{0}{1} {2} {3}\r\n", (new string('\t', level)), varType, varName, size);
for (int i = 0; i < childrenCount; i++) { readBase(cb, level + 1); }
}
private void readBase5()
{
int classID = a_Stream.ReadInt32();
if (classID < 0) { a_Stream.Position += 16; }
a_Stream.Position += 16;
if (baseDefinitions)
{
#region cmmon string array
string[] baseStrings = new string[1007];
baseStrings[0] = "AABB";
baseStrings[5] = "AnimationClip";
baseStrings[19] = "AnimationCurve";
baseStrings[49] = "Array";
baseStrings[55] = "Base";
baseStrings[60] = "BitField";
baseStrings[76] = "bool";
baseStrings[81] = "char";
baseStrings[86] = "ColorRGBA";
baseStrings[106] = "data";
baseStrings[138] = "FastPropertyName";
baseStrings[155] = "first";
baseStrings[161] = "float";
baseStrings[167] = "Font";
baseStrings[172] = "GameObject";
baseStrings[183] = "Generic Mono";
baseStrings[208] = "GUID";
baseStrings[222] = "int";
baseStrings[241] = "map";
baseStrings[245] = "Matrix4x4f";
baseStrings[262] = "NavMeshSettings";
baseStrings[263] = "MonoBehaviour";
baseStrings[277] = "MonoScript";
baseStrings[299] = "m_Curve";
baseStrings[349] = "m_Enabled";
baseStrings[374] = "m_GameObject";
baseStrings[427] = "m_Name";
baseStrings[490] = "m_Script";
baseStrings[519] = "m_Type";
baseStrings[526] = "m_Version";
baseStrings[543] = "pair";
baseStrings[548] = "PPtr<Component>";
baseStrings[564] = "PPtr<GameObject>";
baseStrings[581] = "PPtr<Material>";
baseStrings[616] = "PPtr<MonoScript>";
baseStrings[633] = "PPtr<Object>";
baseStrings[688] = "PPtr<Texture>";
baseStrings[702] = "PPtr<Texture2D>";
baseStrings[718] = "PPtr<Transform>";
baseStrings[741] = "Quaternionf";
baseStrings[753] = "Rectf";
baseStrings[778] = "second";
baseStrings[795] = "size";
baseStrings[800] = "SInt16";
baseStrings[814] = "int64";
baseStrings[840] = "string";
baseStrings[874] = "Texture2D";
baseStrings[884] = "Transform";
baseStrings[894] = "TypelessData";
baseStrings[907] = "UInt16";
baseStrings[928] = "UInt8";
baseStrings[934] = "unsigned int";
baseStrings[981] = "vector";
baseStrings[988] = "Vector2f";
baseStrings[997] = "Vector3f";
baseStrings[1006] = "Vector4f";
#endregion
int varCount = a_Stream.ReadInt32();
int stringSize = a_Stream.ReadInt32();
a_Stream.Position += varCount * 24;
string varStrings = Encoding.UTF8.GetString(a_Stream.ReadBytes(stringSize));
string className = "";
StringBuilder classVarStr = new StringBuilder();
//build Class Structures
a_Stream.Position -= varCount * 24 + stringSize;
for (int i = 0; i < varCount; i++)
{
ushort num0 = a_Stream.ReadUInt16();
byte level = a_Stream.ReadByte();
bool isArray = a_Stream.ReadBoolean();
ushort varTypeIndex = a_Stream.ReadUInt16();
ushort test = a_Stream.ReadUInt16();
string varTypeStr;
if (test == 0) //varType is an offset in the string block
{ varTypeStr = varStrings.Substring(varTypeIndex, varStrings.IndexOf('\0', varTypeIndex) - varTypeIndex); }//substringToNull
else //varType is an index in an internal strig array
{ varTypeStr = baseStrings[varTypeIndex] != null ? baseStrings[varTypeIndex] : varTypeIndex.ToString(); }
ushort varNameIndex = a_Stream.ReadUInt16();
test = a_Stream.ReadUInt16();
string varNameStr;
if (test == 0) { varNameStr = varStrings.Substring(varNameIndex, varStrings.IndexOf('\0', varNameIndex) - varNameIndex); }
else { varNameStr = baseStrings[varNameIndex] != null ? baseStrings[varNameIndex] : varNameIndex.ToString(); }
int size = a_Stream.ReadInt32();
int index = a_Stream.ReadInt32();
int num1 = a_Stream.ReadInt32();
if (index == 0) { className = varTypeStr + " " + varNameStr; }
else { classVarStr.AppendFormat("{0}{1} {2} {3}\r\n", (new string('\t', level)), varTypeStr, varNameStr, size); }
//for (int t = 0; t < level; t++) { Debug.Write("\t"); }
//Debug.WriteLine(varTypeStr + " " + varNameStr + " " + size);
}
a_Stream.Position += stringSize;
var aClass = new ClassStrStruct() { ID = classID, Text = className, members = classVarStr.ToString() };
aClass.SubItems.Add(classID.ToString());
ClassStructures.Add(classID, aClass);
}
}
}
}