public static void ExtraUPK(string upkfilepath, string outputpath, CodeProgress progress)
{
int totalsize = 0;
FileStream upkFilestream = new FileStream(upkfilepath, FileMode.Open);
upkFilestream.Seek(0, SeekOrigin.Begin);
int offset = 0;
//读取文件数量;
byte[] totaliddata = new byte[4];
upkFilestream.Read(totaliddata, 0, 4);
int filecount = BitConverter.ToInt32(totaliddata, 0);
offset += 4;
Debug.Log("filecount=" + filecount);
//读取所有文件信息;
for (int index = 0; index < filecount; index++)
{
//读取id;
byte[] iddata = new byte[4];
upkFilestream.Seek(offset, SeekOrigin.Begin);
upkFilestream.Read(iddata, 0, 4);
int id = BitConverter.ToInt32(iddata, 0);
offset += 4;
//读取StartPos;
byte[] startposdata = new byte[4];
upkFilestream.Seek(offset, SeekOrigin.Begin);
upkFilestream.Read(startposdata, 0, 4);
int startpos = BitConverter.ToInt32(startposdata, 0);
offset += 4;
//读取size;
byte[] sizedata = new byte[4];
upkFilestream.Seek(offset, SeekOrigin.Begin);
upkFilestream.Read(sizedata, 0, 4);
int size = BitConverter.ToInt32(sizedata, 0);
offset += 4;
//读取pathLength;
byte[] pathLengthdata = new byte[4];
upkFilestream.Seek(offset, SeekOrigin.Begin);
upkFilestream.Read(pathLengthdata, 0, 4);
int pathLength = BitConverter.ToInt32(pathLengthdata, 0);
offset += 4;
//读取path;
byte[] pathdata = new byte[pathLength];
upkFilestream.Seek(offset, SeekOrigin.Begin);
upkFilestream.Read(pathdata, 0, pathLength);
string path = m_UTF8Encoding.GetString(pathdata);
offset += pathLength;
//添加到Dic;
OneFileInfor info = new OneFileInfor();
info.m_id = id;
info.m_Size = size;
info.m_PathLength = pathLength;
info.m_Path = path;
info.m_StartPos = startpos;
m_allFileInfoDic.Add(id, info);
totalsize += size;
Debug.Log("id=" + id + " startPos=" + startpos + " size=" + size + " pathLength=" + pathLength + " path=" + path);
}
//释放文件;
int totalprocesssize = 0;
foreach (var infopair in m_allFileInfoDic)
{
OneFileInfor info = infopair.Value;
int startPos = info.m_StartPos;
int size = info.m_Size;
string path = info.m_Path;
//创建文件;
string dirpath = outputpath + path.Substring(0, path.LastIndexOf('/'));
string filepath = outputpath + path;
if (Directory.Exists(dirpath) == false)
{
Directory.CreateDirectory(dirpath);
}
if (File.Exists(filepath))
{
File.Delete(filepath);
}
FileStream fileStream = new FileStream(filepath, FileMode.Create);
byte[] tmpfiledata;
int processSize = 0;
while (processSize < size)
{
if (size - processSize < 1024)
{
tmpfiledata = new byte[size - processSize];
}
else
{
tmpfiledata = new byte[1024];
}
//读取;
upkFilestream.Seek(startPos + processSize, SeekOrigin.Begin);
upkFilestream.Read(tmpfiledata, 0, tmpfiledata.Length);
//写入;
fileStream.Write(tmpfiledata, 0, tmpfiledata.Length);
processSize += tmpfiledata.Length;
totalprocesssize += tmpfiledata.Length;
progress.SetProgressPercent((long)totalsize, (long)totalprocesssize);
}
fileStream.Flush();
fileStream.Close();
}
}
/** 打包一个文件夹 **/
public static void PackFolder(string folderpath, string upkfilepath, CodeProgress progress)
{
TraverseFolder(folderpath);
Debug.Log("文件数量 : " + m_id + "个");
Debug.Log("文件总大小 : " + m_totalSize + "KB");
/** 更新文件在UPK中的起始点 **/
int firstfilestartpos = 0 + 4;
for (int index = 0; index < m_allFileInfoDic.Count; index++)
{
firstfilestartpos += 4 + 4 + 4 + 4 + m_allFileInfoDic[index].m_PathLength;
}
int startpos = 0;
for (int index = 0; index < m_allFileInfoDic.Count; index++)
{
if (index == 0)
{
startpos = firstfilestartpos;
}
else
{
startpos = m_allFileInfoDic[index - 1].m_StartPos + m_allFileInfoDic[index - 1].m_Size; //上一个文件的开始+文件大小;
}
m_allFileInfoDic[index].m_StartPos = startpos;
}
/** 写文件 **/
FileStream fileStream = new FileStream(upkfilepath, FileMode.Create);
/** 文件总数量 **/
byte[] totaliddata = System.BitConverter.GetBytes(m_id);
fileStream.Write(totaliddata, 0, totaliddata.Length);
for (int index = 0; index < m_allFileInfoDic.Count; index++)
{
/** 写入ID **/
byte[] iddata = System.BitConverter.GetBytes(m_allFileInfoDic[index].m_id);
fileStream.Write(iddata, 0, iddata.Length);
/** 写入StartPos **/
byte[] startposdata = System.BitConverter.GetBytes(m_allFileInfoDic[index].m_StartPos);
fileStream.Write(startposdata, 0, startposdata.Length);
/** 写入size **/
byte[] sizedata = System.BitConverter.GetBytes(m_allFileInfoDic[index].m_Size);
fileStream.Write(sizedata, 0, sizedata.Length);
/** 写入pathLength **/
byte[] pathLengthdata = System.BitConverter.GetBytes(m_allFileInfoDic[index].m_PathLength);
fileStream.Write(pathLengthdata, 0, pathLengthdata.Length);
/** 写入path **/
byte[] mypathdata = new UTF8Encoding().GetBytes(m_allFileInfoDic[index].m_Path);
fileStream.Write(mypathdata, 0, mypathdata.Length);
}
/** 写入文件数据 **/
// for (int index = 0; index < m_allFileInfoDic.Count; index++)
// {
// fileStream.Write(m_allFileInfoDic[index].m_data, 0, m_allFileInfoDic[index].m_Size);
// }
int totalprocessSize = 0;
foreach (var infopair in m_allFileInfoDic)
{
OneFileInfor info = infopair.Value;
int size = info.m_Size;
byte[] tmpdata = null;
int processSize = 0;
while (processSize < size)
{
if (size - processSize < 1024)
{
tmpdata = new byte[size - processSize];
}
else
{
tmpdata = new byte[1024];
}
fileStream.Write(info.m_data, processSize, tmpdata.Length);
processSize += tmpdata.Length;
totalprocessSize += tmpdata.Length;
progress.SetProgressPercent(m_totalSize, totalprocessSize);
}
}
fileStream.Flush();
fileStream.Close();
/** 重置数据 **/
m_id = 0;
m_totalSize = 0;
m_allFileInfoDic.Clear();
}
