public void ReadLocations(Stream st, bool readTimeStamps = true)
{
RegionFile_Location tempLocation = new RegionFile_Location();
BinaryReader br = new BinaryReader(st);
for (int i = 0; i < 1024; i++)
{
tempLocation.offset = (short)BinaryJava.Read3byteInt(br);
tempLocation.sectorCount = br.ReadByte();
if (tempLocation.sectorCount != 0)
{
locations.Add(tempLocation);
}
tempLocation = new RegionFile_Location();
}
if (readTimeStamps)
{
for (int i = 0; i < 1024; i++)
{
if (tempLocation.sectorCount != 0)
{
locations[i].timestamp = BinaryJava.ReadInt(br);
}
}
}
}
public static RegionFile_Chunk GetChunkByLocation(RegionFile_Location location, Stream st)
{
RegionFile_Chunk tempChunk = new RegionFile_Chunk();
BinaryReader br = new BinaryReader(st);
{
br.ReadBytes(8192);
long ichi = br.BaseStream.Position;
br.BaseStream.Position = location.offset * 4096;
byte[] chunkData = br.ReadBytes(location.sectorCount * 4096);
BinaryReader chunkDataBR = new BinaryReader(new MemoryStream(chunkData));
tempChunk.length = BinaryJava.ReadInt(chunkDataBR);
tempChunk.compressionType = chunkDataBR.ReadByte();
if (tempChunk.compressionType == 2)
{
//tempChunk.Data = Deflactor.DeCompress(chunkDataBR.ReadBytes(tempChunk.length)); // chunkData.Skip(5).Take(tempChunk.length).ToArray());
//File.WriteAllBytes( "decomBytesNewnewnew",Deflactor.DeCompress(chunkDataBR.ReadBytes(tempChunk.length)));
tempChunk.tag = RegionFile_Chunk.ReadTags(Deflactor.DeCompress(chunkDataBR.ReadBytes(tempChunk.length)));
chunkDataBR.Dispose();
return(tempChunk);
}
else
{
throw new Exception("Unknown compression type");
}
}
}
/// <summary>
/// 不要忘了Stream.Close(); !
/// </summary>
/// <param name="st"></param>
public void WriteTo(Stream st)
{
BinaryWriter bw = new BinaryWriter(st);
bw.Write((byte)Convert.ToInt32(type));
if (type != TagType.TAG_End)
{
BinaryJava.WriteUTF(bw, name);
WritePayload(bw);
}
}
public static Tag ReadFrom(Stream st)
{
BinaryReader br = new BinaryReader(st);
byte type = br.ReadByte();
Tag tag = null;
if (type == 0)
{
tag = new Tag(TagType.TAG_End, null, null);
}
else if (Enum.GetValues(typeof(TagType)).Length > type)
{
//string name = readUTF(br);
tag = new Tag(GetTypeByIndex(type), BinaryJava.ReadUTF(br), ReadPayload(br, type));
}
br.Close();
return(tag);
}
public static RegionFile_Location ReadLocation(Stream st, short index, bool readTimeStamps = true)
{
RegionFile_Location location = new RegionFile_Location();
using (BinaryReader br = new BinaryReader(st))
{
br.BaseStream.Position = index * 4;
location.offset = (short)BinaryJava.Read3byteInt(br);
location.sectorCount = br.ReadByte();
if (readTimeStamps)
{
br.BaseStream.Position = index * 4 + 4096;
if (location.sectorCount != 0)
{
location.timestamp = BinaryJava.ReadInt(br);
}
}
return(location);
}
}
private void WritePayload(BinaryWriter bw)
{
switch (type)
{
case TagType.TAG_End:
break;
case TagType.TAG_Byte:
bw.Write((byte)value);
break;
case TagType.TAG_Short:
BinaryJava.WriteShort(bw, (short)value);
break;
case TagType.TAG_Int:
BinaryJava.WriteInt(bw, (int)value);
break;
case TagType.TAG_Long:
BinaryJava.WriteLong(bw, (long)value);
break;
case TagType.TAG_Float:
BinaryJava.WriteFloat(bw, (float)value);
break;
case TagType.TAG_Double:
BinaryJava.WriteDouble(bw, (double)value);
break;
case TagType.TAG_Byte_Array:
byte[] ba = (byte[])value;
BinaryJava.WriteInt(bw, ba.Length);
bw.Write(ba);
break;
case TagType.TAG_String:
BinaryJava.WriteUTF(bw, (string)value);
break;
case TagType.TAG_List:
Tag[] list = (Tag[])value;
bw.Write((byte)Convert.ToInt32(GetListTagType()));
BinaryJava.WriteInt(bw, list.Length);
foreach (Tag tt in list)
{
tt.WritePayload(bw);
}
break;
case TagType.TAG_Compound:
Tag[] subtags = (Tag[])value;
foreach (Tag st in subtags)
{
Tag subtag = st;
TagType type = subtag.GetTagType();
bw.Write((byte)Convert.ToInt32(type));
if (type != TagType.TAG_End)
{
BinaryJava.WriteUTF(bw, (subtag.GetName()));
subtag.WritePayload(bw);
}
}
break;
case TagType.TAG_Int_Array:
int[] ia = (int[])value;
BinaryJava.WriteInt(bw, ia.Length);
for (int i = 0; i < ia.Length; i++)
{
BinaryJava.WriteInt(bw, ia[i]);
}
break;
case TagType.TAG_Long_Array:
long[] la = (long[])value;
BinaryJava.WriteInt(bw, la.Length);
for (int i = 0; i < la.Length; i++)
{
BinaryJava.WriteLong(bw, la[i]);
}
break;
default:
break;
}
}
private static object ReadPayload(BinaryReader br, byte type)
{
switch (type)
{
case 0:
return(null);
case 1:
return(br.ReadByte());
case 2:
return(BinaryJava.ReadShort(br));
case 3:
return(BinaryJava.ReadInt(br));
case 4:
return(BinaryJava.ReadLong(br));;
case 5:
return(BinaryJava.ReadFloat(br));
case 6:
return(BinaryJava.ReadDouble(br));
case 7:
int length = BinaryJava.ReadInt(br);
return(br.ReadBytes(length));
case 8:
return(BinaryJava.ReadUTF(br));
case 9:
byte lt = br.ReadByte();
int ll = BinaryJava.ReadInt(br);
Tag[] lo = new Tag[ll];
for (int i = 0; i < ll; i++)
{
lo[i] = new Tag(GetTypeByIndex(lt), null, ReadPayload(br, lt));
}
if (lo.Length == 0)
{
return(GetTypeByIndex(lt));
}
else
{
return(lo);
}
case 10:
byte stt;
Tag[] tags = new Tag[0];
do
{
stt = br.ReadByte();
string name = null;
if (stt != 0)
{
name = BinaryJava.ReadUTF(br);
}
Tag[] newTags = new Tag[tags.Length + 1];
Array.Copy(tags, 0, newTags, 0, tags.Length);
newTags[tags.Length] = new Tag(GetTypeByIndex(stt), name, ReadPayload(br, stt));
tags = newTags;
} while (stt != 0);
return(tags);
case 11:
int len = BinaryJava.ReadInt(br);
int[] ia = new int[len];
for (int i = 0; i < len; i++)
{
ia[i] = BinaryJava.ReadInt(br);
}
return(ia);
case 12:
int len_ = BinaryJava.ReadInt(br);
long[] ia_ = new long[len_];
for (int i = 0; i < len_; i++)
{
ia_[i] = BinaryJava.ReadLong(br);
}
return(ia_);
default:
break;
}
return(null);
}
