/// <summary>
/// 从当前所有MPQ文件中读取指定文件
/// </summary>
/// <param name="filename"></param>
/// <returns></returns>
public byte[] ReadData(string filename)
{
MPQEntry entry = null;
if (!this.mpqEntries.TryGetValue(filename, out entry))
{
return(null);
}
return(entry.File.ReadFile(filename));
}
/// <summary>
/// 读取MPQ包中所有文件信息
/// </summary>
private void readEntries()
{
int enriesCount = this.header.entriesCount;
for (int i = 0; i < enriesCount; i++)
{
MPQEntry entry = new MPQEntry();
entry.Read(this.stream);
entry.File = this;
log.Debug("read a entry file:" + entry.key + ";hashA:" + entry.hashA + ";hashB:" + entry.hashB);
this.entries.Add(entry);
}
}
/// <summary>
/// 从MPQ中读取文件数据
/// </summary>
/// <param name="filename"></param>
/// <returns></returns>
public byte[] ReadFile(string filename)
{
MPQEntry entry = this.getEntry(filename);
if (entry == null)
{
log.Error("the file is not in mpq:" + filename);
return(null);
}
int offset = this.header.blocksOffset + entry.fileOffset;
this.stream.Seek(offset);
return(this.stream.ReadBytes(entry.fileSize));
}
//添加一个entry，注意新老覆盖
private bool putEntry(MPQEntry entry)
{
MPQEntry old = null;
if (!this.mpqEntries.TryGetValue(entry.key, out old))
{
this.mpqEntries[entry.key] = entry;
return(true);
}
if (old.fileDate < entry.fileDate)
{
this.mpqEntries[entry.key] = entry;
return(true);
}
return(false);
}
