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Rewrote the entity movement packets to use full 16-bit signed short increasing the entity ID limit from 2048 (artifical lce limit) to 32768 ids (0 to 32767)

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This commit is contained in:
MathiewMay
2026-03-09 21:45:08 -04:00
parent 9c254bbf4d
commit dac0e883b6
4 changed files with 94 additions and 162 deletions
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72
Minecraft.World/Network/Packets/MoveEntityPacket.cpp
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@@ -4,7 +4,7 @@
#include "PacketListener.h"
#include "MoveEntityPacket.h"
MoveEntityPacket::MoveEntityPacket()
MoveEntityPacket::MoveEntityPacket()
{
hasRot = false;
@@ -28,7 +28,7 @@ MoveEntityPacket::MoveEntityPacket(int id)
xRot = 0;
}
void MoveEntityPacket::read(DataInputStream *dis) //throws IOException
void MoveEntityPacket::read(DataInputStream *dis) //throws IOException
{
id = dis->readShort();
}
@@ -48,7 +48,7 @@ void MoveEntityPacket::handle(PacketListener *listener)
listener->handleMoveEntity(shared_from_this());
}
int MoveEntityPacket::getEstimatedSize()
int MoveEntityPacket::getEstimatedSize()
{
return 2;
}
@@ -71,40 +71,40 @@ MoveEntityPacket::PosRot::PosRot()
MoveEntityPacket::PosRot::PosRot(int id, char xa, char ya, char za, char yRot, char xRot) : MoveEntityPacket( id )
{
this->xa = xa;
this->ya = ya;
this->za = za;
this->yRot = yRot;
this->xRot = xRot;
this->xa = (int)(signed char)xa;
this->ya = (int)(signed char)ya;
this->za = (int)(signed char)za;
this->yRot = (int)(signed char)yRot;
this->xRot = (int)(signed char)xRot;
hasRot = true;
}
void MoveEntityPacket::PosRot::read(DataInputStream *dis) //throws IOException
void MoveEntityPacket::PosRot::read(DataInputStream *dis) //throws IOException
{
MoveEntityPacket::read(dis);
xa = (int)dis->readByte();
ya = (int)dis->readByte();
za = (int)dis->readByte();
yRot = (int)dis->readByte();
xRot = (int)dis->readByte();
xa = (int)(signed char)dis->readByte();
ya = (int)(signed char)dis->readByte();
za = (int)(signed char)dis->readByte();
yRot = (int)(signed char)dis->readByte();
xRot = (int)(signed char)dis->readByte();
}
void MoveEntityPacket::PosRot::write(DataOutputStream *dos) //throws IOException
void MoveEntityPacket::PosRot::write(DataOutputStream *dos) //throws IOException
{
MoveEntityPacket::write(dos);
dos->writeByte((uint8_t)xa);
dos->writeByte((uint8_t)ya);
dos->writeByte((uint8_t)za);
dos->writeByte((uint8_t)yRot);
dos->writeByte((uint8_t)xRot);
dos->writeByte((uint8_t)(xa & 0xFF));
dos->writeByte((uint8_t)(ya & 0xFF));
dos->writeByte((uint8_t)(za & 0xFF));
dos->writeByte((uint8_t)(yRot & 0xFF));
dos->writeByte((uint8_t)(xRot & 0xFF));
}
int MoveEntityPacket::PosRot::getEstimatedSize()
int MoveEntityPacket::PosRot::getEstimatedSize()
{
return 2+5;
}
MoveEntityPacket::Pos::Pos()
MoveEntityPacket::Pos::Pos()
{
}
@@ -115,20 +115,20 @@ MoveEntityPacket::Pos::Pos(int id, char xa, char ya, char za) : MoveEntityPacket
this->za = za;
}
void MoveEntityPacket::Pos::read(DataInputStream *dis) //throws IOException
void MoveEntityPacket::Pos::read(DataInputStream *dis) //throws IOException
{
MoveEntityPacket::read(dis);
xa = (int)dis->readByte();
ya = (int)dis->readByte();
za = (int)dis->readByte();
xa = (int)(signed char)dis->readByte();
ya = (int)(signed char)dis->readByte();
za = (int)(signed char)dis->readByte();
}
void MoveEntityPacket::Pos::write(DataOutputStream *dos) //throws IOException
{
MoveEntityPacket::write(dos);
dos->writeByte((uint8_t)xa);
dos->writeByte((uint8_t)ya);
dos->writeByte((uint8_t)za);
dos->writeByte((uint8_t)(xa & 0xFF));
dos->writeByte((uint8_t)(ya & 0xFF));
dos->writeByte((uint8_t)(za & 0xFF));
}
int MoveEntityPacket::Pos::getEstimatedSize()
@@ -136,7 +136,7 @@ int MoveEntityPacket::Pos::getEstimatedSize()
return 2+3;
}
MoveEntityPacket::Rot::Rot()
MoveEntityPacket::Rot::Rot()
{
hasRot = true;
}
@@ -148,18 +148,18 @@ MoveEntityPacket::Rot::Rot(int id, char yRot, char xRot) : MoveEntityPacket(id)
hasRot = true;
}
void MoveEntityPacket::Rot::read(DataInputStream *dis) //throws IOException
void MoveEntityPacket::Rot::read(DataInputStream *dis) //throws IOException
{
MoveEntityPacket::read(dis);
yRot = (int)dis->readByte();
xRot = (int)dis->readByte();
yRot = (int)(signed char)dis->readByte();
xRot = (int)(signed char)dis->readByte();
}
void MoveEntityPacket::Rot::write(DataOutputStream *dos) //throws IOException
void MoveEntityPacket::Rot::write(DataOutputStream *dos) //throws IOException
{
MoveEntityPacket::write(dos);
dos->writeByte((uint8_t)yRot);
dos->writeByte((uint8_t)xRot);
dos->writeByte((uint8_t)(yRot & 0xFF));
dos->writeByte((uint8_t)(xRot & 0xFF));
}
int MoveEntityPacket::Rot::getEstimatedSize()