4jcraft/Minecraft.World/Network/Packets/LoginPacket.cpp

#include "../../Platform/stdafx.h"
#include <cstring>
#include <iostream>
#include "../../IO/Streams/InputOutputStream.h"
#include "../../Headers/net.minecraft.world.entity.player.h"
#include "PacketListener.h"
#include "LoginPacket.h"
#include "../../Level/Storage/LevelType.h"


LoginPacket::LoginPacket()
{
	this->userName = L"";
	this->clientVersion = 0;
	this->seed = 0;
	this->dimension = 0;
	this->gameType = 0;
	this->mapHeight = 0;
	this->maxPlayers = 0;

	this->difficulty = 1;

	this->m_offlineXuid = INVALID_XUID;
	this->m_onlineXuid = INVALID_XUID;
	m_friendsOnlyUGC = false;
	m_ugcPlayersVersion = 0;
	m_multiplayerInstanceId = 0;
	m_playerIndex = 0;
	m_playerSkinId = 0;
	m_playerCapeId = 0;
	m_isGuest = false;
	m_newSeaLevel = false;
	m_pLevelType = NULL;
	m_uiGamePrivileges = 0;
	m_xzSize = LEVEL_MAX_WIDTH;
	m_hellScale = HELL_LEVEL_MAX_SCALE;
}

// Client -> Server
LoginPacket::LoginPacket(const std::wstring& userName, int clientVersion, PlayerUID offlineXuid, PlayerUID onlineXuid,  bool friendsOnlyUGC, std::uint32_t ugcPlayersVersion, std::uint32_t skinId, std::uint32_t capeId, bool isGuest)
{
	this->userName = userName;
	this->clientVersion = clientVersion;
	this->seed = 0;
	this->dimension = 0;
	this->gameType = 0;
	this->mapHeight = 0;
	this->maxPlayers = 0;

	this->difficulty = 1;

	this->m_offlineXuid = offlineXuid;
	this->m_onlineXuid = onlineXuid;
	m_friendsOnlyUGC = friendsOnlyUGC;
	m_ugcPlayersVersion = ugcPlayersVersion;
	m_multiplayerInstanceId = 0;
	m_playerIndex = 0;
	m_playerSkinId = skinId;
	m_playerCapeId = capeId;
	m_isGuest = isGuest;
	m_newSeaLevel = false;
	m_pLevelType = NULL;
	m_uiGamePrivileges = 0;
	m_xzSize = LEVEL_MAX_WIDTH;
	m_hellScale = HELL_LEVEL_MAX_SCALE;
}

// Server -> Client
LoginPacket::LoginPacket(const std::wstring& userName, int clientVersion, LevelType *pLevelType, __int64 seed, int gameType, char dimension, std::uint8_t mapHeight, std::uint8_t maxPlayers, char difficulty, int multiplayerInstanceId, std::uint8_t playerIndex, bool newSeaLevel, unsigned int uiGamePrivileges, int xzSize, int hellScale) 
{
	this->userName = userName;
	this->clientVersion = clientVersion;
	this->seed = seed;
	this->dimension = dimension;
	this->gameType = gameType;
	this->mapHeight = mapHeight;
	this->maxPlayers = maxPlayers;

	this->difficulty = difficulty;

	this->m_offlineXuid = INVALID_XUID;
	this->m_onlineXuid = INVALID_XUID;
	m_friendsOnlyUGC = false;
	m_ugcPlayersVersion = 0;
	m_multiplayerInstanceId = multiplayerInstanceId;
	this->m_playerIndex = playerIndex;
	m_playerSkinId = 0;
	m_playerCapeId = 0;
	m_isGuest = false;
	m_newSeaLevel = newSeaLevel;
	this->m_pLevelType=pLevelType;
	m_uiGamePrivileges = uiGamePrivileges;
	m_xzSize = xzSize;
	m_hellScale = hellScale;
}

void LoginPacket::read(DataInputStream *dis) //throws IOException 
{
	clientVersion = dis->readInt();
	userName = readUtf(dis, Player::MAX_NAME_LENGTH);
	std::wstring typeName = readUtf(dis, 16);
	m_pLevelType = LevelType::getLevelType(typeName);
	if (m_pLevelType == NULL) 
	{
		m_pLevelType = LevelType::lvl_normal;
	}
	seed = dis->readLong();
	gameType = dis->readInt();
	dimension = (int)dis->readByte();
	mapHeight = static_cast<std::uint8_t>(dis->readByte());
	maxPlayers = static_cast<std::uint8_t>(dis->readByte());
	m_offlineXuid = dis->readPlayerUID();
	m_onlineXuid = dis->readPlayerUID();
	m_friendsOnlyUGC = dis->readBoolean();
	int ugcPlayersVersion = dis->readInt();
	std::memcpy(&m_ugcPlayersVersion, &ugcPlayersVersion, sizeof(m_ugcPlayersVersion));
	difficulty = (int)dis->readByte();
	m_multiplayerInstanceId = dis->readInt();
	m_playerIndex = static_cast<std::uint8_t>(dis->readByte());
	int skinId = dis->readInt();
	std::memcpy(&m_playerSkinId, &skinId, sizeof(m_playerSkinId));
	int capeId = dis->readInt();
	std::memcpy(&m_playerCapeId, &capeId, sizeof(m_playerCapeId));
	m_isGuest = dis->readBoolean();
	m_newSeaLevel = dis->readBoolean();
	m_uiGamePrivileges = dis->readInt();
#ifdef _LARGE_WORLDS
	m_xzSize = dis->readShort();
	m_hellScale = dis->read();
#endif
	app.DebugPrintf("LoginPacket::read - Difficulty = %d\n",difficulty);

}

void LoginPacket::write(DataOutputStream *dos) //throws IOException 
{
	dos->writeInt(clientVersion);
	writeUtf(userName, dos);
	if (m_pLevelType == NULL) 
	{
		writeUtf(L"", dos);
	} 
	else 
	{
		writeUtf(m_pLevelType->getGeneratorName(), dos);
	}
	dos->writeLong(seed);
	dos->writeInt(gameType);
	dos->writeByte((std::uint8_t)dimension);
	dos->writeByte((std::uint8_t)mapHeight);
	dos->writeByte((std::uint8_t)maxPlayers);
	dos->writePlayerUID(m_offlineXuid);
	dos->writePlayerUID(m_onlineXuid);
	dos->writeBoolean(m_friendsOnlyUGC);
	int ugcPlayersVersion = 0;
	std::memcpy(&ugcPlayersVersion, &m_ugcPlayersVersion, sizeof(m_ugcPlayersVersion));
	dos->writeInt(ugcPlayersVersion);
	dos->writeByte((std::uint8_t)difficulty);
	dos->writeInt(m_multiplayerInstanceId);
	dos->writeByte((std::uint8_t)m_playerIndex);
	int skinId = 0;
	std::memcpy(&skinId, &m_playerSkinId, sizeof(m_playerSkinId));
	dos->writeInt(skinId);
	int capeId = 0;
	std::memcpy(&capeId, &m_playerCapeId, sizeof(m_playerCapeId));
	dos->writeInt(capeId);
	dos->writeBoolean(m_isGuest);
	dos->writeBoolean(m_newSeaLevel);
	dos->writeInt(m_uiGamePrivileges);
#ifdef _LARGE_WORLDS
	dos->writeShort(m_xzSize);
	dos->write(m_hellScale);
#endif
}

void LoginPacket::handle(PacketListener *listener)
{
	listener->handleLogin(shared_from_this());
}

int LoginPacket::getEstimatedSize() 
{
	int length=0;
	if (m_pLevelType != NULL) 
	{
		length = (int)m_pLevelType->getGeneratorName().length();
	}

	return (int)(sizeof(int) + userName.length() + 4 + 6 + sizeof(__int64) + sizeof(char) + sizeof(int) + (2*sizeof(PlayerUID)) + 1 + sizeof(char) + sizeof(std::uint8_t) + sizeof(bool) + sizeof(bool) + length + sizeof(unsigned int));
}