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4jcraft/targets/minecraft/network/packet/Packet.cpp

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#include "minecraft/util/Log.h"
#include "Packet.h"
#include <assert.h>
#include <stdint.h>
#include <string.h>
#include <memory>
#include <sstream>
#include <string>
#include <typeinfo>
#include <unordered_map>
#include <unordered_set>
#include <vector>
#include "app/linux/LinuxGame.h"
#include "app/linux/Stubs/winapi_stubs.h"
#include "java/Exceptions.h"
#include "java/InputOutputStream/DataInputStream.h"
#include "java/InputOutputStream/DataOutputStream.h"
#include "java/System.h"
#include "minecraft/network/packet/AddEntityPacket.h"
#include "minecraft/network/packet/AddExperienceOrbPacket.h"
#include "minecraft/network/packet/AddGlobalEntityPacket.h"
#include "minecraft/network/packet/AddMobPacket.h"
#include "minecraft/network/packet/AddPaintingPacket.h"
#include "minecraft/network/packet/AddPlayerPacket.h"
#include "minecraft/network/packet/AnimatePacket.h"
#include "minecraft/network/packet/AwardStatPacket.h"
#include "minecraft/network/packet/BlockRegionUpdatePacket.h"
#include "minecraft/network/packet/ChatPacket.h"
#include "minecraft/network/packet/ChunkTilesUpdatePacket.h"
#include "minecraft/network/packet/ChunkVisibilityAreaPacket.h"
#include "minecraft/network/packet/ChunkVisibilityPacket.h"
#include "minecraft/network/packet/ClientCommandPacket.h"
#include "minecraft/network/packet/ComplexItemDataPacket.h"
#include "minecraft/network/packet/ContainerAckPacket.h"
#include "minecraft/network/packet/ContainerButtonClickPacket.h"
#include "minecraft/network/packet/ContainerClickPacket.h"
#include "minecraft/network/packet/ContainerClosePacket.h"
#include "minecraft/network/packet/ContainerOpenPacket.h"
#include "minecraft/network/packet/ContainerSetContentPacket.h"
#include "minecraft/network/packet/ContainerSetDataPacket.h"
#include "minecraft/network/packet/ContainerSetSlotPacket.h"
#include "minecraft/network/packet/CraftItemPacket.h"
#include "minecraft/network/packet/CustomPayloadPacket.h"
#include "minecraft/network/packet/DebugOptionsPacket.h"
#include "minecraft/network/packet/DisconnectPacket.h"
#include "minecraft/network/packet/EntityActionAtPositionPacket.h"
#include "minecraft/network/packet/EntityEventPacket.h"
#include "minecraft/network/packet/ExplodePacket.h"
#include "minecraft/network/packet/GameCommandPacket.h"
#include "minecraft/network/packet/GameEventPacket.h"
#include "minecraft/network/packet/GetInfoPacket.h"
#include "minecraft/network/packet/InteractPacket.h"
#include "minecraft/network/packet/KeepAlivePacket.h"
#include "minecraft/network/packet/KickPlayerPacket.h"
#include "minecraft/network/packet/LevelEventPacket.h"
#include "minecraft/network/packet/LevelParticlesPacket.h"
#include "minecraft/network/packet/LevelSoundPacket.h"
#include "minecraft/network/packet/LoginPacket.h"
#include "minecraft/network/packet/MoveEntityPacket.h"
#include "minecraft/network/packet/MoveEntityPacketSmall.h"
#include "minecraft/network/packet/MovePlayerPacket.h"
#include "minecraft/network/packet/PlayerAbilitiesPacket.h"
#include "minecraft/network/packet/PlayerActionPacket.h"
#include "minecraft/network/packet/PlayerCommandPacket.h"
#include "minecraft/network/packet/PlayerInfoPacket.h"
#include "minecraft/network/packet/PlayerInputPacket.h"
#include "minecraft/network/packet/PreLoginPacket.h"
#include "minecraft/network/packet/RemoveEntitiesPacket.h"
#include "minecraft/network/packet/RemoveMobEffectPacket.h"
#include "minecraft/network/packet/RespawnPacket.h"
#include "minecraft/network/packet/RotateHeadPacket.h"
#include "minecraft/network/packet/ServerSettingsChangedPacket.h"
#include "minecraft/network/packet/SetCarriedItemPacket.h"
#include "minecraft/network/packet/SetCreativeModeSlotPacket.h"
#include "minecraft/network/packet/SetDisplayObjectivePacket.h"
#include "minecraft/network/packet/SetEntityDataPacket.h"
#include "minecraft/network/packet/SetEntityLinkPacket.h"
#include "minecraft/network/packet/SetEntityMotionPacket.h"
#include "minecraft/network/packet/SetEquippedItemPacket.h"
#include "minecraft/network/packet/SetExperiencePacket.h"
#include "minecraft/network/packet/SetHealthPacket.h"
#include "minecraft/network/packet/SetObjectivePacket.h"
#include "minecraft/network/packet/SetPlayerTeamPacket.h"
#include "minecraft/network/packet/SetScorePacket.h"
#include "minecraft/network/packet/SetSpawnPositionPacket.h"
#include "minecraft/network/packet/SetTimePacket.h"
#include "minecraft/network/packet/SignUpdatePacket.h"
#include "minecraft/network/packet/TakeItemEntityPacket.h"
#include "minecraft/network/packet/TeleportEntityPacket.h"
#include "minecraft/network/packet/TextureAndGeometryChangePacket.h"
#include "minecraft/network/packet/TextureAndGeometryPacket.h"
#include "minecraft/network/packet/TextureChangePacket.h"
#include "minecraft/network/packet/TexturePacket.h"
#include "minecraft/network/packet/TileDestructionPacket.h"
#include "minecraft/network/packet/TileEditorOpenPacket.h"
#include "minecraft/network/packet/TileEntityDataPacket.h"
#include "minecraft/network/packet/TileEventPacket.h"
#include "minecraft/network/packet/TileUpdatePacket.h"
#include "minecraft/network/packet/TradeItemPacket.h"
#include "minecraft/network/packet/UpdateAttributesPacket.h"
#include "minecraft/network/packet/UpdateGameRuleProgressPacket.h"
#include "minecraft/network/packet/UpdateMobEffectPacket.h"
#include "minecraft/network/packet/UpdateProgressPacket.h"
#include "minecraft/network/packet/UseItemPacket.h"
#include "minecraft/network/packet/XZPacket.h"
#include "minecraft/world/item/ItemInstance.h"
#include "nbt/NbtIo.h"
class CompoundTag;
void Packet::staticCtor() {
// nextPrint = 0;
// 4J - Note that item IDs are now defined in virtual method for each packet
// type
// 4J Stu - The values for canSendToAnyClient may not necessarily be the
// correct choices
map(0, true, true, true, false, typeid(KeepAlivePacket),
KeepAlivePacket::create);
map(1, true, true, true, false, typeid(LoginPacket), LoginPacket::create);
map(2, true, true, true, false, typeid(PreLoginPacket),
PreLoginPacket::create);
map(3, true, true, true, false, typeid(ChatPacket), ChatPacket::create);
map(4, true, false, false, true, typeid(SetTimePacket),
SetTimePacket::create);
map(5, true, false, false, true, typeid(SetEquippedItemPacket),
SetEquippedItemPacket::create);
map(6, true, false, true, true, typeid(SetSpawnPositionPacket),
SetSpawnPositionPacket::create);
map(7, false, true, false, false, typeid(InteractPacket),
InteractPacket::create);
map(8, true, false, true, true, typeid(SetHealthPacket),
SetHealthPacket::create);
map(9, true, true, true, false, typeid(RespawnPacket),
RespawnPacket::create);
map(10, true, true, true, false, typeid(MovePlayerPacket),
MovePlayerPacket::create);
map(11, true, true, true, true, typeid(MovePlayerPacket::Pos),
MovePlayerPacket::Pos::create);
map(12, true, true, true, true, typeid(MovePlayerPacket::Rot),
MovePlayerPacket::Rot::create);
map(13, true, true, true, true, typeid(MovePlayerPacket::PosRot),
MovePlayerPacket::PosRot::create);
map(14, false, true, false, false, typeid(PlayerActionPacket),
PlayerActionPacket::create);
map(15, false, true, false, false, typeid(UseItemPacket),
UseItemPacket::create);
map(16, true, true, true, false, typeid(SetCarriedItemPacket),
SetCarriedItemPacket::create);
// 4J-PB - we need to send to any client for the sleep in bed
// map(17, true, false, false, false, EntityActionAtPositionPacket));
map(17, true, false, true, false, typeid(EntityActionAtPositionPacket),
EntityActionAtPositionPacket::create);
// 4J-PB - we need to send to any client for the wake up from sleeping
// map(18, true, true, false, false, AnimatePacket));
map(18, true, true, true, false, typeid(AnimatePacket),
AnimatePacket::create);
map(19, false, true, false, false, typeid(PlayerCommandPacket),
PlayerCommandPacket::create);
map(20, true, false, false, true, typeid(AddPlayerPacket),
AddPlayerPacket::create);
map(22, true, false, true, true, typeid(TakeItemEntityPacket),
TakeItemEntityPacket::create);
map(23, true, false, false, true, typeid(AddEntityPacket),
AddEntityPacket::create);
map(24, true, false, false, true, typeid(AddMobPacket),
AddMobPacket::create);
map(25, true, false, false, false, typeid(AddPaintingPacket),
AddPaintingPacket::create);
map(26, true, false, false, false, typeid(AddExperienceOrbPacket),
AddExperienceOrbPacket::create); // TODO New for 1.8.2 - Needs
// sendToAny?
map(27, false, true, false, false, typeid(PlayerInputPacket),
PlayerInputPacket::create);
// 4J-PB - needs to go to any player, due to the knockback effect when a
// played is hit
map(28, true, false, true, true, typeid(SetEntityMotionPacket),
SetEntityMotionPacket::create);
map(29, true, false, false, true, typeid(RemoveEntitiesPacket),
RemoveEntitiesPacket::create);
map(30, true, false, false, false, typeid(MoveEntityPacket),
MoveEntityPacket::create);
map(31, true, false, false, true, typeid(MoveEntityPacket::Pos),
MoveEntityPacket::Pos::create);
map(32, true, false, false, true, typeid(MoveEntityPacket::Rot),
MoveEntityPacket::Rot::create);
map(33, true, false, false, true, typeid(MoveEntityPacket::PosRot),
MoveEntityPacket::PosRot::create);
map(34, true, false, false, true, typeid(TeleportEntityPacket),
TeleportEntityPacket::create);
map(35, true, false, false, false, typeid(RotateHeadPacket),
RotateHeadPacket::create);
// 4J - needs to go to any player, to create sound effect when a player is
// hit
map(38, true, false, true, true, typeid(EntityEventPacket),
EntityEventPacket::create);
map(39, true, false, true, false, typeid(SetEntityLinkPacket),
SetEntityLinkPacket::create);
map(40, true, false, true, true, typeid(SetEntityDataPacket),
SetEntityDataPacket::create);
map(41, true, false, true, false, typeid(UpdateMobEffectPacket),
UpdateMobEffectPacket::create);
map(42, true, false, true, false, typeid(RemoveMobEffectPacket),
RemoveMobEffectPacket::create);
map(43, true, false, true, false, typeid(SetExperiencePacket),
SetExperiencePacket::create);
map(44, true, false, true, false, typeid(UpdateAttributesPacket),
UpdateAttributesPacket::create);
map(50, true, false, true, true, typeid(ChunkVisibilityPacket),
ChunkVisibilityPacket::create);
map(51, true, false, true, true, typeid(BlockRegionUpdatePacket),
BlockRegionUpdatePacket::create); // Changed to LevelChunkPacket in
// Java but we aren't using that
map(52, true, false, true, true, typeid(ChunkTilesUpdatePacket),
ChunkTilesUpdatePacket::create);
map(53, true, false, true, true, typeid(TileUpdatePacket),
TileUpdatePacket::create);
map(54, true, false, true, true, typeid(TileEventPacket),
TileEventPacket::create);
map(55, true, false, false, false, typeid(TileDestructionPacket),
TileDestructionPacket::create);
map(60, true, false, true, false, typeid(ExplodePacket),
ExplodePacket::create);
map(61, true, false, true, false, typeid(LevelEventPacket),
LevelEventPacket::create);
// 4J-PB - don't see the need for this, we can use 61
map(62, true, false, true, false, typeid(LevelSoundPacket),
LevelSoundPacket::create);
map(63, true, false, true, false, typeid(LevelParticlesPacket),
LevelParticlesPacket::create);
map(70, true, false, false, false, typeid(GameEventPacket),
GameEventPacket::create);
map(71, true, false, false, false, typeid(AddGlobalEntityPacket),
AddGlobalEntityPacket::create);
map(100, true, false, true, false, typeid(ContainerOpenPacket),
ContainerOpenPacket::create);
map(101, true, true, true, false, typeid(ContainerClosePacket),
ContainerClosePacket::create);
map(102, false, true, false, false, typeid(ContainerClickPacket),
ContainerClickPacket::create);
#if !defined(_CONTENT_PACKAGE)
// 4J Stu - We have some debug code that uses this packet to send data back
// to the server from the client We may wish to add this into the real game
// at some point
map(103, true, true, true, false, typeid(ContainerSetSlotPacket),
ContainerSetSlotPacket::create);
#else
map(103, true, false, true, false, typeid(ContainerSetSlotPacket),
ContainerSetSlotPacket::create);
#endif
map(104, true, false, true, false, typeid(ContainerSetContentPacket),
ContainerSetContentPacket::create);
map(105, true, false, true, false, typeid(ContainerSetDataPacket),
ContainerSetDataPacket::create);
map(106, true, true, true, false, typeid(ContainerAckPacket),
ContainerAckPacket::create);
map(107, true, true, true, false, typeid(SetCreativeModeSlotPacket),
SetCreativeModeSlotPacket::create);
map(108, false, true, false, false, typeid(ContainerButtonClickPacket),
ContainerButtonClickPacket::create);
map(130, true, true, true, false, typeid(SignUpdatePacket),
SignUpdatePacket::create);
map(131, true, false, true, false, typeid(ComplexItemDataPacket),
ComplexItemDataPacket::create);
map(132, true, false, false, false, typeid(TileEntityDataPacket),
TileEntityDataPacket::create);
map(133, true, false, true, false, typeid(TileEditorOpenPacket),
TileEditorOpenPacket::create);
// 4J Added
map(150, false, true, false, false, typeid(CraftItemPacket),
CraftItemPacket::create);
map(151, false, true, true, false, typeid(TradeItemPacket),
TradeItemPacket::create);
map(152, false, true, false, false, typeid(DebugOptionsPacket),
DebugOptionsPacket::create);
map(153, true, true, false, false, typeid(ServerSettingsChangedPacket),
ServerSettingsChangedPacket::create);
map(154, true, true, true, false, typeid(TexturePacket),
TexturePacket::create);
map(155, true, false, true, true, typeid(ChunkVisibilityAreaPacket),
ChunkVisibilityAreaPacket::create);
map(156, true, false, false, true, typeid(UpdateProgressPacket),
UpdateProgressPacket::create);
map(157, true, true, true, false, typeid(TextureChangePacket),
TextureChangePacket::create);
map(158, true, false, true, false, typeid(UpdateGameRuleProgressPacket),
UpdateGameRuleProgressPacket::create);
map(159, false, true, false, false, typeid(KickPlayerPacket),
KickPlayerPacket::create);
map(160, true, true, true, false, typeid(TextureAndGeometryPacket),
TextureAndGeometryPacket::create);
map(161, true, true, true, false, typeid(TextureAndGeometryChangePacket),
TextureAndGeometryChangePacket::create);
map(162, true, false, false, false, typeid(MoveEntityPacketSmall),
MoveEntityPacketSmall::create);
map(163, true, false, false, true, typeid(MoveEntityPacketSmall::Pos),
MoveEntityPacketSmall::Pos::create);
map(164, true, false, false, true, typeid(MoveEntityPacketSmall::Rot),
MoveEntityPacketSmall::Rot::create);
map(165, true, false, false, true, typeid(MoveEntityPacketSmall::PosRot),
MoveEntityPacketSmall::PosRot::create);
map(166, true, true, false, false, typeid(XZPacket), XZPacket::create);
map(167, false, true, false, false, typeid(GameCommandPacket),
GameCommandPacket::create);
map(200, true, false, true, false, typeid(AwardStatPacket),
AwardStatPacket::create);
map(201, true, true, false, false, typeid(PlayerInfoPacket),
PlayerInfoPacket::create); // TODO New for 1.8.2 - Repurposed by 4J
map(202, true, true, true, false, typeid(PlayerAbilitiesPacket),
PlayerAbilitiesPacket::create);
// 4J Stu - These added 1.3.2, but don't think we need them
// map(203, true, true, true, false, ChatAutoCompletePacket.class);
// map(204, false, true, true, false, ClientInformationPacket.class);
map(205, false, true, true, false, typeid(ClientCommandPacket),
ClientCommandPacket::create);
map(206, true, false, true, false, typeid(SetObjectivePacket),
SetObjectivePacket::create);
map(207, true, false, true, false, typeid(SetScorePacket),
SetScorePacket::create);
map(208, true, false, true, false, typeid(SetDisplayObjectivePacket),
SetDisplayObjectivePacket::create);
map(209, true, false, true, false, typeid(SetPlayerTeamPacket),
SetPlayerTeamPacket::create);
map(250, true, true, true, false, typeid(CustomPayloadPacket),
CustomPayloadPacket::create);
// 4J Stu - These added 1.3.2, but don't think we need them
// map(252, true, true, SharedKeyPacket.class);
// map(253, true, false, ServerAuthDataPacket.class);
map(254, false, true, false, false, typeid(GetInfoPacket),
GetInfoPacket::create); // TODO New for 1.8.2 - Needs sendToAny?
map(255, true, true, true, false, typeid(DisconnectPacket),
DisconnectPacket::create);
}
IllegalArgumentException::IllegalArgumentException(
const std::string& information) {
this->information = information;
}
IOException::IOException(const std::string& information) {
this->information = information;
}
Packet::Packet() : createTime(System::currentTimeMillis()) {
shouldDelay = false;
}
std::unordered_map<int, packetCreateFn> Packet::idToCreateMap;
std::unordered_set<int> Packet::clientReceivedPackets =
std::unordered_set<int>();
std::unordered_set<int> Packet::serverReceivedPackets =
std::unordered_set<int>();
std::unordered_set<int> Packet::sendToAnyClientPackets =
std::unordered_set<int>();
// 4J Added
std::unordered_map<int, Packet::PacketStatistics*> Packet::outgoingStatistics =
std::unordered_map<int, Packet::PacketStatistics*>();
std::vector<Packet::PacketStatistics*> Packet::renderableStats =
std::vector<Packet::PacketStatistics*>();
int Packet::renderPos = 0;
// sendToAnyClient - true - send to anyone, false - Sends to one person per
// dimension per machine
void Packet::map(int id, bool receiveOnClient, bool receiveOnServer,
bool sendToAnyClient, bool renderStats,
const std::type_info& clazz, packetCreateFn createFn) {
idToCreateMap.insert(
std::unordered_map<int, packetCreateFn>::value_type(id, createFn));
#if !defined(_CONTENT_PACKAGE)
#if PACKET_ENABLE_STAT_TRACKING
Packet::PacketStatistics* packetStatistics = new PacketStatistics(id);
outgoingStatistics[id] = packetStatistics;
if (renderStats) {
renderableStats.push_back(packetStatistics);
}
#endif
#endif
if (receiveOnClient) {
clientReceivedPackets.insert(id);
}
if (receiveOnServer) {
serverReceivedPackets.insert(id);
}
if (sendToAnyClient) {
sendToAnyClientPackets.insert(id);
}
}
// 4J Added to record data for outgoing packets
void Packet::recordOutgoingPacket(std::shared_ptr<Packet> packet,
int playerIndex) {
#if !defined(_CONTENT_PACKAGE)
#if PACKET_ENABLE_STAT_TRACKING
int idx = playerIndex;
if (packet->getId() != 51) {
idx = 100;
}
auto it = outgoingStatistics.find(idx);
if (it == outgoingStatistics.end()) {
Packet::PacketStatistics* packetStatistics = new PacketStatistics(idx);
outgoingStatistics[idx] = packetStatistics;
packetStatistics->addPacket(packet->getEstimatedSize());
} else {
it->second->addPacket(packet->getEstimatedSize());
}
#endif
#endif
}
void Packet::updatePacketStatsPIX() {
#if !defined(_CONTENT_PACKAGE)
#if PACKET_ENABLE_STAT_TRACKING
for (auto it = outgoingStatistics.begin(); it != outgoingStatistics.end();
it++) {
Packet::PacketStatistics* stat = it->second;
int64_t count = stat->getRunningCount();
char pixName[256];
snprintf(pixName, "Packet count %d", stat->id);
// PIXReportCounter(pixName,(float)count);
int64_t total = stat->getRunningTotal();
snprintf(pixName, "Packet bytes %d", stat->id);
PIXReportCounter(pixName, (float)total);
stat->IncrementPos();
}
#endif
#endif
}
std::shared_ptr<Packet> Packet::getPacket(int id) {
// 4J: Removed try/catch
return idToCreateMap[id]();
}
void Packet::writeBytes(DataOutputStream* dataoutputstream,
const std::vector<uint8_t>& bytes) {
dataoutputstream->writeShort(bytes.size());
dataoutputstream->write(bytes);
}
std::vector<uint8_t> Packet::readBytes(DataInputStream* datainputstream) {
int size = datainputstream->readShort();
if (size < 0) {
Log::info("Key was smaller than nothing! Weird key!");
#if !defined(_CONTENT_PACKAGE)
assert(0);
#endif
return std::vector<uint8_t>();
// throw new IOException("Key was smaller than nothing! Weird key!");
}
std::vector<uint8_t> bytes(size);
datainputstream->readFully(bytes);
return bytes;
}
bool Packet::canSendToAnyClient(std::shared_ptr<Packet> packet) {
int packetId = packet->getId();
return sendToAnyClientPackets.count(packetId) != 0;
}
// 4J - now a pure virtual method
/*
int Packet::getId()
{
return id;
}
*/
std::unordered_map<int, Packet::PacketStatistics*> Packet::statistics =
std::unordered_map<int, Packet::PacketStatistics*>();
// int Packet::nextPrint = 0;
std::shared_ptr<Packet> Packet::readPacket(
DataInputStream* dis, bool isServer) // throws IOException TODO 4J JEV,
// should this declare a throws?
{
int id = 0;
std::shared_ptr<Packet> packet = nullptr;
// 4J - removed try/catch
// try
// {
id = dis->read();
if (id == -1) return nullptr;
if ((isServer &&
serverReceivedPackets.find(id) == serverReceivedPackets.end()) ||
(!isServer &&
clientReceivedPackets.find(id) == clientReceivedPackets.end())) {
// Log::info("Bad packet id %d\n", id);
assert(0);
assert(false);
// throw new IOException(string("Bad packet id ") +
// toWString<int>(id));
}
packet = getPacket(id);
if (packet == nullptr)
assert(false); // throw new IOException(string("Bad packet id ") +
// toWString<int>(id));
// Log::info("%s reading packet %d\n", isServer ? "Server" : "Client",
// packet->getId());
packet->read(dis);
// }
// catch (EOFException e)
// {
// // reached end of stream
// OutputDebugString("Reached end of stream");
// return nullptr;
// }
// 4J - Don't bother tracking stats in a content package
// 4J Stu - This changes a bit in 1.0.1, but we don't really use it so stick
// with what we have
#if !defined(_CONTENT_PACKAGE)
#if PACKET_ENABLE_STAT_TRACKING
auto it = statistics.find(id);
if (it == statistics.end()) {
Packet::PacketStatistics* packetStatistics = new PacketStatistics(id);
statistics[id] = packetStatistics;
packetStatistics->addPacket(packet->getEstimatedSize());
} else {
it->second->addPacket(packet->getEstimatedSize());
}
#endif
#endif
return packet;
}
void Packet::writePacket(
std::shared_ptr<Packet> packet,
DataOutputStream*
dos) // throws IOException TODO 4J JEV, should this declare a throws?
{
// Log::info("Writing packet %d\n", packet->getId());
dos->write(packet->getId());
packet->write(dos);
}
void Packet::writeUtf(const std::string& value,
DataOutputStream* dos) // throws IOException TODO 4J JEV,
// should this declare a throws?
{
dos->writeShort((short)value.length());
dos->writeChars(value);
}
std::string Packet::readUtf(DataInputStream* dis,
int maxLength) // throws IOException TODO 4J JEV,
// should this declare a throws?
{
short stringLength = dis->readShort();
if (stringLength > maxLength) {
std::stringstream stream;
stream << "Received string length longer than maximum allowed ("
<< stringLength << " > " << maxLength << ")";
assert(false);
// throw new IOException( stream.str() );
}
if (stringLength < 0) {
assert(false);
// throw new IOException("Received string length is less than
// zero! Weird string!");
}
std::string builder = "";
for (int i = 0; i < stringLength; i++) {
char rc = dis->readChar();
builder.push_back(rc);
}
return builder;
}
Packet::PacketStatistics::PacketStatistics(int id)
: id(id), count(0), totalSize(0), samplesPos(0) {
memset(countSamples, 0, sizeof(countSamples));
memset(sizeSamples, 0, sizeof(sizeSamples));
}
void Packet::PacketStatistics::addPacket(int bytes) {
countSamples[samplesPos]++;
sizeSamples[samplesPos] += bytes;
timeSamples[samplesPos] = System::currentTimeMillis();
totalSize += bytes;
count++;
}
int Packet::PacketStatistics::getCount() { return count; }
double Packet::PacketStatistics::getAverageSize() {
if (count == 0) {
return 0;
}
return (double)totalSize / count;
}
int Packet::PacketStatistics::getTotalSize() { return totalSize; }
int64_t Packet::PacketStatistics::getRunningTotal() {
int64_t total = 0;
int64_t currentTime = System::currentTimeMillis();
for (int i = 0; i < TOTAL_TICKS; i++) {
if (currentTime - timeSamples[i] <= 1000) {
total += sizeSamples[i];
}
}
return total;
}
int64_t Packet::PacketStatistics::getRunningCount() {
int64_t total = 0;
int64_t currentTime = System::currentTimeMillis();
for (int i = 0; i < TOTAL_TICKS; i++) {
if (currentTime - timeSamples[i] <= 1000) {
total += countSamples[i];
}
}
return total;
}
void Packet::PacketStatistics::IncrementPos() {
samplesPos = (samplesPos + 1) % TOTAL_TICKS;
countSamples[samplesPos] = 0;
sizeSamples[samplesPos] = 0;
timeSamples[samplesPos] = 0;
}
bool Packet::canBeInvalidated() { return false; }
bool Packet::isInvalidatedBy(std::shared_ptr<Packet> packet) { return false; }
bool Packet::isAync() { return false; }
// 4J Stu - Brought these functions forward for enchanting/game rules
std::shared_ptr<ItemInstance> Packet::readItem(DataInputStream* dis) {
std::shared_ptr<ItemInstance> item = nullptr;
int id = dis->readShort();
if (id >= 0) {
int count = dis->readByte();
int damage = dis->readShort();
item = std::make_shared<ItemInstance>(id, count, damage);
// 4J Stu - Always read/write the tag
// if (Item.items[id].canBeDepleted() ||
// Item.items[id].shouldOverrideMultiplayerNBT())
{
item->tag = readNbt(dis);
}
}
return item;
}
void Packet::writeItem(std::shared_ptr<ItemInstance> item,
DataOutputStream* dos) {
if (item == nullptr) {
dos->writeShort(-1);
} else {
dos->writeShort(item->id);
dos->writeByte(item->count);
dos->writeShort(item->getAuxValue());
// 4J Stu - Always read/write the tag
// if (item.getItem().canBeDepleted() ||
// item.getItem().shouldOverrideMultiplayerNBT())
{
writeNbt(item->tag, dos);
}
}
}
CompoundTag* Packet::readNbt(DataInputStream* dis) {
int size = dis->readShort();
if (size < 0) return nullptr;
std::vector<uint8_t> buff(size);
dis->readFully(buff);
CompoundTag* result = (CompoundTag*)NbtIo::decompress(buff);
return result;
}
void Packet::writeNbt(CompoundTag* tag, DataOutputStream* dos) {
if (tag == nullptr) {
dos->writeShort(-1);
} else {
std::vector<uint8_t> buff = NbtIo::compress(tag);
dos->writeShort((short)buff.size());
dos->write(buff);
}
}
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