/**
* Sends the update entity packet.
*
* @param entity The entity being updated.
*/
public void sendUpdateEntity(Entity entity) {
final Position oldPosition = entity.getOldPosition();
final Position position = entity.getPosition();
final Rotation oldRotation = entity.getOldRotation();
final Rotation rotation = entity.getRotation();
final int deltaX = -oldPosition.getX() - position.getX();
final int deltaY = -oldPosition.getY() - position.getY();
final int deltaZ = -oldPosition.getZ() - position.getZ();
final int deltaRotation = -oldRotation.getRotation() - rotation.getRotation();
final int deltaLook = -oldRotation.getLook() - rotation.getLook();
if (deltaX != 0 || deltaY != 0 || deltaZ != 0) {
if (deltaX > Byte.MAX_VALUE
|| deltaX < Byte.MIN_VALUE
|| deltaY > Byte.MAX_VALUE
|| deltaY < Byte.MIN_VALUE
|| deltaZ > Byte.MAX_VALUE
|| deltaZ < Byte.MIN_VALUE
|| deltaRotation > Byte.MAX_VALUE
|| deltaRotation < Byte.MIN_VALUE
|| deltaLook > Byte.MAX_VALUE
|| deltaLook < Byte.MIN_VALUE) {
// teleport
PacketBuilder bldr =
new PacketBuilder(PersistingPacketManager.getPacketManager().getOutgoingPacket(8));
bldr.putByte("id", entity.getId());
bldr.putShort("x", position.getX());
bldr.putShort("y", position.getY());
bldr.putShort("z", position.getZ());
bldr.putByte("rotation", rotation.getRotation());
bldr.putByte("look", rotation.getLook());
session.send(bldr.toPacket());
} else {
// send move and rotate packet
PacketBuilder bldr =
new PacketBuilder(PersistingPacketManager.getPacketManager().getOutgoingPacket(9));
bldr.putByte("id", entity.getId());
bldr.putByte("delta_x", deltaX);
bldr.putByte("delta_y", deltaY);
bldr.putByte("delta_z", deltaZ);
bldr.putByte("delta_rotation", deltaRotation);
bldr.putByte("delta_look", deltaLook);
session.send(bldr.toPacket());
}
}
}
/**
* Sends a teleport.
*
* @param position The new position.
* @param rotation The new rotation.
*/
public void sendTeleport(Position position, Rotation rotation) {
session.getPlayer().teleportPosition = position.toBlockPos();
PacketBuilder bldr =
new PacketBuilder(PersistingPacketManager.getPacketManager().getOutgoingPacket(8));
bldr.putByte("id", -1);
bldr.putShort("x", position.getX());
bldr.putShort("y", position.getY());
bldr.putShort("z", position.getZ());
bldr.putByte("rotation", rotation.getRotation());
bldr.putByte("look", rotation.getLook());
session.send(bldr.toPacket());
session.getPlayer().teleporting = true;
}