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Code Issues Packages Projects Releases 3 Wiki Activity

smartcmd/MinecraftConsoles and itsRevela/MinecraftConsoles network packet compatibility fix:

Browse Source 
LoginPacket.cpp:
  - read(): Extracts hardcore from bit 3 of gameType (gameType & 0x8), then masks it off (gameType &
  ~0x8)
  - write(): Encodes hardcore into gameType via gameType | (m_isHardcore ? 0x8 : 0)
  - Removed the separate readBoolean()/writeBoolean() for m_isHardcore
  - Removed trailing + sizeof(bool) from getEstimatedSize()

  RespawnPacket.cpp:
  - read(): Extracts hardcore from bit 3 of the playerGameType byte, then masks it off before passing
  to GameType::byId()
  - write(): Encodes hardcore into the playerGameType byte via getId() | (m_isHardcore ? 0x8 : 0)
  - Removed the separate readBoolean()/writeBoolean() for m_isHardcore
  - Reverted getEstimatedSize() from 14+length to 13+length
This commit is contained in:
Revela
2026-03-13 07:12:26 -05:00
parent b28c0026af
commit 514c4cf102
2 changed files with 9 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
Minecraft.World/LoginPacket.cpp
View File

@@ -109,6 +109,8 @@ void LoginPacket::read(DataInputStream *dis) //throws IOException
}
seed = dis->readLong();
gameType = dis->readInt();
m_isHardcore = (gameType & 0x8) != 0;
gameType = gameType & ~0x8;
dimension = dis->readByte();
mapHeight = dis->readByte();
maxPlayers = dis->readByte();
@@ -130,7 +132,6 @@ void LoginPacket::read(DataInputStream *dis) //throws IOException
m_xzSize = dis->readShort();
m_hellScale = dis->read();
#endif
m_isHardcore = dis->readBoolean();
app.DebugPrintf("LoginPacket::read - Difficulty = %d\n",difficulty);
}
@@ -148,7 +149,7 @@ void LoginPacket::write(DataOutputStream *dos) //throws IOException
writeUtf(m_pLevelType->getGeneratorName(), dos);
}
dos->writeLong(seed);
dos->writeInt(gameType);
dos->writeInt(gameType | (m_isHardcore ? 0x8 : 0));
dos->writeByte(dimension);
dos->writeByte(mapHeight);
dos->writeByte(maxPlayers);
@@ -168,7 +169,6 @@ void LoginPacket::write(DataOutputStream *dos) //throws IOException
dos->writeShort(m_xzSize);
dos->write(m_hellScale);
#endif
dos->writeBoolean(m_isHardcore);
}
void LoginPacket::handle(PacketListener *listener)
@@ -184,5 +184,5 @@ int LoginPacket::getEstimatedSize()
length = static_cast<int>(m_pLevelType->getGeneratorName().length());
}
return static_cast<int>(sizeof(int) + userName.length() + 4 + 6 + sizeof(int64_t) + sizeof(char) + sizeof(int) + (2 * sizeof(PlayerUID)) + 1 + sizeof(char) + sizeof(BYTE) + sizeof(bool) + sizeof(bool) + length + sizeof(unsigned int) + sizeof(bool));
return static_cast<int>(sizeof(int) + userName.length() + 4 + 6 + sizeof(int64_t) + sizeof(char) + sizeof(int) + (2 * sizeof(PlayerUID)) + 1 + sizeof(char) + sizeof(BYTE) + sizeof(bool) + sizeof(bool) + length + sizeof(unsigned int));
}

10
Minecraft.World/RespawnPacket.cpp
View File

@@ -45,7 +45,9 @@ void RespawnPacket::handle(PacketListener *listener)
void RespawnPacket::read(DataInputStream *dis) //throws IOException
{
dimension = dis->readByte();
playerGameType = GameType::byId(dis->readByte());
int rawGameType = dis->readByte();
m_isHardcore = (rawGameType & 0x8) != 0;
playerGameType = GameType::byId(rawGameType & ~0x8);
mapHeight = dis->readShort();
wstring typeName = readUtf(dis, 16);
m_pLevelType = LevelType::getLevelType(typeName);
@@ -61,7 +63,6 @@ void RespawnPacket::read(DataInputStream *dis) //throws IOException
m_xzSize = dis->readShort();
m_hellScale = dis->read();
#endif
m_isHardcore = dis->readBoolean();
app.DebugPrintf("RespawnPacket::read - Difficulty = %d\n",difficulty);
}
@@ -69,7 +70,7 @@ void RespawnPacket::read(DataInputStream *dis) //throws IOException
void RespawnPacket::write(DataOutputStream *dos) //throws IOException
{
dos->writeByte(dimension);
dos->writeByte(playerGameType->getId());
dos->writeByte(playerGameType->getId() | (m_isHardcore ? 0x8 : 0));
dos->writeShort(mapHeight);
if (m_pLevelType == nullptr)
{
@@ -87,7 +88,6 @@ void RespawnPacket::write(DataOutputStream *dos) //throws IOException
dos->writeShort(m_xzSize);
dos->write(m_hellScale);
#endif
dos->writeBoolean(m_isHardcore);
}
int RespawnPacket::getEstimatedSize()
@@ -97,5 +97,5 @@ int RespawnPacket::getEstimatedSize()
{
length = static_cast<int>(m_pLevelType->getGeneratorName().length());
}
return 14+length;
return 13+length;
}