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BattleNetwork.cpp
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358 lines (330 loc) · 11.3 KB
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#include "BattleNetwork.h"
#ifdef WITH_NETWORK
#include "DrawableOnCall.h"
#include "filefunc.h"
#include "Font.h"
#include "GameUtil.h"
#include "Save.h"
#include "TeamMenu.h"
#include "picosha2.h"
#include <random>
#define CALLBACK_ON_ERROR(err) if (err) { final_callback_(err); return; }
bool BattleNetwork::sendMyAction(const BattleNetwork::SerializableBattleAction& action)
{
// 错误不管
fmt1::print("sendMyAction\n");
asio::async_write(socket_, asio::buffer(&action, sizeof(action)), [](std::error_code err, std::size_t bytes)
{
fmt1::print("send {}\n", err.message());
});
return true;
}
bool BattleNetwork::getOpponentAction(BattleNetwork::SerializableBattleAction& action, std::function<void(std::error_code err, std::size_t bytes)> f)
{
fmt1::print("getOpponentAction\n");
asio::async_read(socket_, asio::buffer(&action, sizeof(action)), f);
return true;
}
void BattleNetwork::nameSetup()
{
// 传递名字
int_buf_ = strID_.size();
const_bufs_.push_back(asio::buffer(&int_buf_, sizeof(int_buf_)));
const_bufs_.push_back(asio::buffer(strID_.data(), int_buf_));
asio::async_write(socket_, const_bufs_, [this](std::error_code err, std::size_t bytes)
{
CALLBACK_ON_ERROR(err);
asio::async_read(socket_, asio::buffer(&int_buf_, sizeof(int_buf_)), [this](std::error_code err, std::size_t bytes)
{
// 读取结果，0失败
CALLBACK_ON_ERROR(err);
if (int_buf_ == 0)
{
err = std::make_error_code(std::errc::not_connected);
CALLBACK_ON_ERROR(err);
}
// 下一步， host等待GO，client发送GO
int_buf_ = 1;
fmt1::print("waiting loop\n");
waitConnection();
});
});
}
bool BattleNetwork::isHost()
{
return is_host_;
}
void BattleNetwork::addValidation(std::array<unsigned char, 32>&& bytes)
{
validations_.push_back(std::move(bytes));
}
void BattleNetwork::handshake(std::vector<RoleSave>&& my_roles, std::function<void(std::error_code err)> f)
{
final_callback_ = f;
friends_ = std::move(my_roles);
resolver_.async_resolve(query_, [this](std::error_code err, asio::ip::tcp::resolver::iterator iter)
{
CALLBACK_ON_ERROR(err);
asio::async_connect(socket_, iter, [this](const std::error_code err, asio::ip::tcp::resolver::iterator iter)
{
CALLBACK_ON_ERROR(err);
nameSetup();
});
});
}
void BattleNetwork::getResults(unsigned int& seed, int& friends, std::vector<RoleSave>& final_roles)
{
seed = seed_;
friends = friends_.size();
final_roles = std::move(role_result_);
}
void BattleNetwork::validate()
{
int_buf_ = validations_.size();
asio::async_write(socket_, asio::buffer(&int_buf_, sizeof(int_buf_)), [this](const std::error_code& err, std::size_t bytes)
{
CALLBACK_ON_ERROR(err);
asio::async_read(socket_, asio::buffer(&int_buf2_, sizeof(int_buf_)), [this](const std::error_code& err, std::size_t bytes)
{
CALLBACK_ON_ERROR(err);
if (int_buf_ != int_buf2_)
{
std::error_code err = std::make_error_code(std::errc::protocol_error);
CALLBACK_ON_ERROR(err);
}
const_bufs_.clear();
for (auto& v : validations_)
{
const_bufs_.push_back(asio::buffer(v));
}
asio::async_write(socket_, const_bufs_, [this](const std::error_code& err, std::size_t bytes)
{
CALLBACK_ON_ERROR(err);
mut_bufs_.clear();
op_validations_.resize(validations_.size());
for (int i = 0; i < int_buf_; i++)
{
mut_bufs_.push_back(asio::buffer(op_validations_[i]));
}
asio::async_read(socket_, mut_bufs_, [this](const std::error_code& err, std::size_t bytes)
{
CALLBACK_ON_ERROR(err);
for (int i = 0; i < validations_.size(); i++)
{
if (validations_[i] != op_validations_[i])
{
std::error_code err = std::make_error_code(std::errc::protocol_error);
CALLBACK_ON_ERROR(err);
}
}
// ok
final_callback_(err);
});
});
});
});
}
BattleHost::BattleHost(const std::string& strID, const std::string& port) : BattleNetwork(strID, port)
{
is_host_ = true;
}
void BattleHost::waitConnection()
{
asio::async_read(socket_, asio::buffer(&int_buf_, sizeof(int_buf_)), [this](const std::error_code& err, std::size_t bytes)
{
CALLBACK_ON_ERROR(err);
fmt1::print("got {}\n", int_buf_);
if (int_buf_ == BattleClient::GO)
{
getRandSeed();
}
else
{
waitConnection();
}
});
}
void BattleHost::getRandSeed()
{
fmt1::print("exchange protocol started\n");
std::random_device device;
seed_ = device();
asio::async_write(socket_, asio::buffer(&seed_, sizeof(seed_)), [this](const std::error_code& err, std::size_t bytes)
{
CALLBACK_ON_ERROR(err);
rDataHandshake();
});
}
void BattleHost::rDataHandshake()
{
// 先传输人数
fmt1::print("rDataHandshake\n");
int_buf_ = friends_.size();
asio::async_write(socket_, asio::buffer(&int_buf_, sizeof(int_buf_)), [this](const std::error_code& err, std::size_t bytes)
{
CALLBACK_ON_ERROR(err);
const_bufs_.clear();
for (int i = 0; i < int_buf_; i++)
{
const_bufs_.push_back(asio::buffer(&friends_[i], sizeof(RoleSave)));
role_result_.push_back(friends_[i]);
}
asio::async_write(socket_, const_bufs_, [this](const std::error_code& err, std::size_t bytes)
{
CALLBACK_ON_ERROR(err);
// 获取对面人数
asio::async_read(socket_, asio::buffer(&int_buf_, sizeof(int_buf_)), [this](const std::error_code& err, std::size_t bytes)
{
CALLBACK_ON_ERROR(err);
mut_bufs_.clear();
role_result_.reserve(friends_.size() + int_buf_);
for (int i = 0; i < int_buf_; i++)
{
role_result_.emplace_back();
mut_bufs_.push_back(asio::buffer(&role_result_.back(), sizeof(RoleSave)));
}
asio::async_read(socket_, mut_bufs_, [this](const std::error_code& err, std::size_t bytes)
{
CALLBACK_ON_ERROR(err);
// 数据收集完毕，开始验证（或许我应该先验证，不管了）
validate();
});
});
});
});
}
BattleClient::BattleClient(const std::string& strID, const std::string& port) : BattleNetwork(strID, port)
{
is_host_ = false;
}
void BattleClient::waitConnection()
{
int_buf_ = BattleClient::GO;
asio::async_write(socket_, asio::buffer(&int_buf_, sizeof(int_buf_)), [this](const std::error_code& err, std::size_t bytes)
{
CALLBACK_ON_ERROR(err);
getRandSeed();
});
}
void BattleClient::getRandSeed()
{
fmt1::print("exchange protocol started\n");
asio::async_read(socket_, asio::buffer(&seed_, sizeof(seed_)), [this](const std::error_code& err, std::size_t bytes)
{
CALLBACK_ON_ERROR(err);
rDataHandshake();
});
}
void BattleClient::rDataHandshake()
{
fmt1::print("rDataHandshake\n");
// 读取人数
asio::async_read(socket_, asio::buffer(&int_buf_, sizeof(int_buf_)), [this](const std::error_code& err, std::size_t bytes)
{
CALLBACK_ON_ERROR(err);
mut_bufs_.clear();
role_result_.reserve(friends_.size() + int_buf_);
// 对面
for (int i = 0; i < int_buf_; i++)
{
role_result_.emplace_back();
mut_bufs_.push_back(asio::buffer(&role_result_.back(), sizeof(RoleSave)));
}
asio::async_read(socket_, mut_bufs_, [this](const std::error_code& err, std::size_t bytes)
{
CALLBACK_ON_ERROR(err);
int_buf_ = friends_.size();
asio::async_write(socket_, asio::buffer(&int_buf_, sizeof(int_buf_)), [this](const std::error_code& err, std::size_t bytes)
{
CALLBACK_ON_ERROR(err);
// 送人
const_bufs_.clear();
for (int i = 0; i < int_buf_; i++)
{
const_bufs_.push_back(asio::buffer(&friends_[i], sizeof(RoleSave)));
role_result_.push_back(friends_[i]);
}
asio::async_write(socket_, const_bufs_, [this](const std::error_code& err, std::size_t bytes)
{
CALLBACK_ON_ERROR(err);
validate();
});
});
});
});
}
std::unique_ptr<BattleNetwork> BattleNetworkFactory::MakeHost(const std::string& id)
{
auto host = std::make_unique<BattleHost>(id, "31111");
host->asyncRun();
if (!UI(host.get()))
{
return nullptr;
}
return std::move(host);
}
std::unique_ptr<BattleNetwork> BattleNetworkFactory::MakeClient(const std::string& id)
{
auto client = std::make_unique<BattleClient>(id, "31112");
client->asyncRun();
if (!UI(client.get()))
{
return nullptr;
}
return std::move(client);
}
bool BattleNetworkFactory::UI(BattleNetwork* net)
{
// 选择队友
auto team = std::make_shared<TeamMenu>();
team->setMode(1);
team->run();
auto friends = team->getRoles();
std::vector<RoleSave> serializableRoles;
for (auto r : friends)
{
RoleSave me;
std::memcpy(&me, r, sizeof(me));
serializableRoles.push_back(me);
}
static_assert(BattleNetwork::VALSIZE == picosha2::k_digest_size, "validation size mismatch");
// 版本验证
std::array<unsigned char, BattleNetwork::VALSIZE> version = { 0 };
std::string verStr(GameUtil::VERSION());
if (verStr.size() > BattleNetwork::VALSIZE)
{
return false;
}
std::memcpy(&version[0], &verStr[0], verStr.size());
net->addValidation(std::move(version));
const auto MagicSize = sizeof(MagicSave);
std::vector<unsigned char> magicByteArr(Save::getInstance()->getMagics().size() * MagicSize);
int idx = 0;
for (auto magic : Save::getInstance()->getMagics())
{
std::memcpy(&magicByteArr[idx * MagicSize], magic, MagicSize);
idx += 1;
}
std::array<unsigned char, BattleNetwork::VALSIZE> magicHash;
picosha2::hash256(magicByteArr, magicHash);
net->addValidation(std::move(magicHash));
auto f = [](DrawableOnCall* d)
{
Font::getInstance()->draw("等待对方玩家连接...", 40, 30, 30, { 200, 200, 50, 255 });
};
bool ok = false;
auto waitThis = std::make_shared<DrawableOnCall>(f);
auto exit = [&waitThis, &ok](std::error_code err)
{
fmt1::print("recv {}\n", err.message());
ok = !err;
waitThis->setExit(true);
};
waitThis->setEntrance([&net, &serializableRoles, exit]()
{
net->handshake(std::move(serializableRoles), exit);
});
waitThis->run();
return ok;
}
#endif