Simply network play type Shogi

README.md

Simply network play type Shogi

The simply network play type Shogi implementation. This project is not for practical because it was implemented for learning.

Requirements

• Boost Asio
• libshogi
• GCC 7.1.0 or later
• Ubuntu 16.04

LICENSE

• LGPL

board_manager.hpp

// Copyright (C) 2017 roki
#ifndef INCLUDED_BOARD_MANAGER_HPP
#define INCLUDED_BOARD_MANAGER_HPP
#include<boost/utility.hpp>
#include<random>
#include<optional>
#include<sstream>
#include<Shogi.h>
#include<Array.h>

namespace board{

std::string input()noexcept
{
	std::string buffer;
	while(!std::cin.fail()){
		std::cout << "Your turn (value or \"r\") >> ";
		std::cin >> buffer;
		try{
			std::stoi(buffer);
		}catch(const std::invalid_argument&){
			if(buffer != "r")continue;
		}
		break;
	}
	return buffer;
}


template<class RandomEngine>
struct shogi_board : private boost::noncopyable {
	template<class RandomDevice,std::enable_if_t<std::is_invocable_v<std::decay_t<RandomDevice>>,std::nullptr_t> = nullptr>
	explicit shogi_board(game::Position& sw,RandomDevice&& seed_gen)
		:sw_(sw),engine_(seed_gen()){}

	std::string get_board()const
	{
		std::ostringstream ss;
		ss << sw_;
		return ss.str();
	}

	std::optional<std::string> get_board(std::string choice)
	{
		using namespace std::string_literals;

		foundation::Array<game::Move::Move,game::Move::Max> move;
		sw_.genMove(move);
		if(move.vsize() == 0)return std::nullopt;
		
		std::uniform_int_distribution<std::size_t> dist_(0,move.vsize());
		std::size_t c = 0;
		
		if(choice == "r"){
			c = dist_(engine_);
		}else if(choice == "end"){
			return std::nullopt;
		}else{
			try{
				c = std::stoi(std::move(choice));
			}catch(const std::exception&){
				return std::nullopt;
			}
		}
		
		sw_.move(move[c]);
		return std::make_optional(get_board());
	}
private:
	game::Position& sw_;
	RandomEngine engine_;
};

} // namespace board

#endif

client.cpp

// Copyright (C) 2017 roki
#include"tcp_client.hpp"
#include"board_manager.hpp"

void main_loop(tcp_client& client)noexcept
{
	using namespace std::string_literals;

	for(boost::asio::streambuf receive_buffer;; receive_buffer.consume(receive_buffer.size())){
		std::string buffer = board::input(); 
		client << buffer;

		try{
			client >> receive_buffer;
		}catch(const std::exception& exp){
			std::cout << exp.what() << std::endl;
			break;
		}
		std::cout << boost::asio::buffer_cast<const char*>(receive_buffer.data()) << std::endl;
		
		std::cout << "Waiting player..." << std::endl;
		receive_buffer.consume(receive_buffer.size());
		try{
			client >> receive_buffer;
		}catch(const std::exception& exp){
			std::cout << exp.what() << std::endl;
			break;
		}
		std::cout << boost::asio::buffer_cast<const char*>(receive_buffer.data()) << std::endl;
	}
}

int main(const int argc,const char* argv[])
{
	if(argc!=3){
		std::cerr << "Usage: client <ip-address> <port>" << std::endl;
		return EXIT_FAILURE;
	}

	using namespace std::string_literals;

	boost::asio::io_service io_service;
	tcp_client client(io_service);
	client.connect(argv[1],static_cast<short unsigned int>(std::stoi(argv[2])));
	
	boost::asio::streambuf receive_buffer;
	try{
		client >> receive_buffer;
	}catch(const std::exception& exp){
		std::cout << exp.what() << std::endl;
		return EXIT_FAILURE;
	}
	std::cout << boost::asio::buffer_cast<const char*>(receive_buffer.data()) << std::endl;

	main_loop(client);

}

LICENSE.txt

                   GNU LESSER GENERAL PUBLIC LICENSE
                       Version 3, 29 June 2007

 Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
 Everyone is permitted to copy and distribute verbatim copies
 of this license document, but changing it is not allowed.


  This version of the GNU Lesser General Public License incorporates
the terms and conditions of version 3 of the GNU General Public
License, supplemented by the additional permissions listed below.

  0. Additional Definitions.

  As used herein, "this License" refers to version 3 of the GNU Lesser
General Public License, and the "GNU GPL" refers to version 3 of the GNU
General Public License.

  "The Library" refers to a covered work governed by this License,
other than an Application or a Combined Work as defined below.

  An "Application" is any work that makes use of an interface provided
by the Library, but which is not otherwise based on the Library.
Defining a subclass of a class defined by the Library is deemed a mode
of using an interface provided by the Library.

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Application with the Library.  The particular version of the Library
with which the Combined Work was made is also called the "Linked
Version".

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Corresponding Source for the Combined Work, excluding any source code
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object code and/or source code for the Application, including any data
and utility programs needed for reproducing the Combined Work from the
Application, but excluding the System Libraries of the Combined Work.

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  You may convey a covered work under sections 3 and 4 of this License
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Makefile

INCDIR  = /usr/local/include/shogi

SERVER    = server
CLIENT = client

DEBUG   = n
MCHCK   = n
BMI2    = n
TLS     = n

CC      = g++-7

ifeq ($(BMI2),y)
CFLAGS += -DUSE_NATIVE_PEXTINSTRUCTION
endif

ifeq ($(TLS),y)
CFLAGS += -DUSE_THREADLOCALSTORAGE
endif

ifeq ($(DEBUG),y)
ifeq ($(MCHCK),y)
CFLAGS += -std=c++1z -Wall -Wextra -Wformat=2 -Wstrict-aliasing=2 \
          -Wcast-qual -Wcast-align -Wwrite-strings -Wconversion \
          -Wfloat-equal -Wpointer-arith -Wswitch-enum \
          -O0 -g -mtune=native -ftrapv -fthreadsafe-statics \
          -fsanitize=address \
		  -I$(INCDIR)
LFLAGS  =  -pthread -lrt -lshogi -lboost_system
else
CFLAGS += -std=c++1z -Wall -Wextra -Wformat=2 -Wstrict-aliasing=2 \
          -Wcast-qual -Wcast-align -Wwrite-strings -Wconversion \
          -Wfloat-equal -Wpointer-arith -Wswitch-enum \
          -O0 -g -mtune=native -fthreadsafe-statics \
		  -I$(INCDIR)
LFLAGS  = -pthread -lrt -lshogi -lboost_system
endif
else
ifeq ($(MCHCK),y)
CFLAGS += -std=c++1z -Wall -Wextra -Wformat=2 -Wstrict-aliasing=2 \
          -Wcast-qual -Wcast-align -Wwrite-strings -Wconversion \
          -Wfloat-equal -Wpointer-arith -Wswitch-enum \
		  -O3 -g -mtune=native -funroll-loops \
          -fthreadsafe-statics -ftrapv -fsanitize=address\
		  -I$(INCDIR)
LFLAGS  = -pthread -lrt -lshogi -lboost_system
else
CFLAGS += -std=c++1z -Wall -Wextra -Wformat=2 -Wstrict-aliasing=2 \
          -Wcast-qual -Wcast-align -Wwrite-strings -Wconversion \
          -Wfloat-equal -Wpointer-arith -Wswitch-enum \
		  -O3 -g -mtune=native -funroll-loops \
          -fthreadsafe-statics \
		  -I$(INCDIR)
LFLAGS  = -lpthread -lrt -lshogi -lboost_system
endif
endif

all: $(SERVER) $(CLIENT)

%.o: %.cpp $(HEADERS)
	$(CC) $(CFLAGS) -c -o $@ $<

$(SERVER): server.o $(HEADERS) $(OBJS)
	$(CC) $(CFLAGS) -o $@ $< $(OBJS) $(LFLAGS)

$(CLIENT): client.o $(HEADERS) $(OBJS)
	$(CC) $(CFLAGS) -o $@ $< $(OBJS) $(LFLAGS)

clean:
	rm -f *.o $(EXEC)

server.cpp

// Copyright (C) 2017 roki

#include"board_manager.hpp"
#include"tcp_server.hpp"
#include<iostream>

template<class RandomSeed>
void main_loop(tcp_server& server,board::shogi_board<RandomSeed>& shogi)
{
	for(boost::asio::streambuf receive_buffer;; receive_buffer.consume(receive_buffer.size())){		
		try{
			server >> receive_buffer;
		}catch(const std::exception& exp){
			std::cout << exp.what() << std::endl;
			break;
		}
		std::string handedly = boost::asio::buffer_cast<const char*>(receive_buffer.data());
		std::cout << handedly << std::endl;
		
		const auto opt0 = shogi.get_board(handedly);
		if(!opt0){
			break;
		}else{
			server << opt0.value();
			std::cout << opt0.value() << std::endl;
		}

		const auto opt1 = shogi.get_board(board::input());
		if(!opt1){
			break;
		}else{
			std::cout << opt1.value() << std::endl;
			server << opt1.value();
		}
	}
}

template<class Integer,std::enable_if_t<std::is_integral_v<std::decay_t<Integer>>,std::nullptr_t> = nullptr>
void exec(Integer&& ip)
{
	using namespace std::string_literals;

	game::Shogi::initialize();
	game::Position::setValue(game::Evaluation::Value);
	game::Position::handsValue(game::Evaluation::Hands);
	game::Position sw;
	sw.init();

	std::random_device seed_gen;
	board::shogi_board<std::mt19937> shogi(sw,seed_gen);

	boost::asio::io_service io_service;
	tcp_server server(io_service,std::forward<Integer>(ip));
	server.accept();
	
	server << shogi.get_board();
	std::cout << shogi.get_board() << std::endl;
	
	main_loop(server,shogi);
}

int main(const int argc,const char* argv[])
{
	if(argc != 2){
		std::cerr << "Usage: server <port>" << std::endl;
		return EXIT_FAILURE;
	}

	exec(static_cast<unsigned short int>(std::stoi(argv[1])));
}

tcp_client.hpp

// Copyright (C) 2017 roki
#ifndef INCLUDED_TCP_CLIENT_HPP
#define INCLUDED_TCP_CLIENT_HPP
#include"tcp_wrapper.hpp"

struct tcp_client final : detail::tcp_wrapper{
	explicit tcp_client(boost::asio::io_service& io):tcp_wrapper(io,1645){}
	
	void connect(std::string ip_address,short unsigned int port)
	{
		std::cout << "Connecting to " << ip_address << ":" << port << std::endl;
		sock.connect(boost::asio::ip::tcp::endpoint(boost::asio::ip::address::from_string(std::move(ip_address)),std::move(port)));
		std::cout << "Connected!" << std::endl;
	}
};

#endif

tcp_server.hpp

// Copyright (C) 2017 roki
#ifndef INCLUDED_TCP_SERVER_HPP
#define INCLUDED_TCP_SERVER_HPP
#include"tcp_wrapper.hpp"

struct tcp_server final : detail::tcp_wrapper {
	explicit tcp_server(boost::asio::io_service& io,short unsigned int ip)
		:tcp_wrapper(io,1),
		acceptor(io,boost::asio::ip::tcp::endpoint(boost::asio::ip::tcp::v4(),ip)){}
	void accept()
	{
		std::cout << "Waiting connection request..." << std::endl;
		acceptor.accept(sock);
		std::cout << "Connected. Waiting for client responce..." << std::endl;
	}
private:
	boost::asio::ip::tcp::acceptor acceptor;
};

#endif

tcp_wrapper.hpp

// Copyright (C) 2017 roki
#ifndef INCLUDED_BOOST_ASIO_TCP_WRAPPER_HPP
#define INCLUDED_BOOST_ASIO_TCP_WRAPPER_HPP
#include<boost/asio.hpp>
#include<iostream>
#include<string>

namespace detail{

struct tcp_wrapper : private boost::noncopyable {
	explicit tcp_wrapper(boost::asio::io_service& io,std::size_t read_size):sock(io),read_size(std::move(read_size)){}
protected:
	void* operator new(std::size_t) = delete;
	void operator delete(void*,std::size_t) = delete;
	void* operator new[](std::size_t,std::size_t) = delete;
	void operator delete[](void*,std::size_t) = delete;

	friend tcp_wrapper& operator>>(tcp_wrapper& tcp,boost::asio::streambuf& receive_buffer)
	noexcept(false)
	{
		using namespace std::string_literals;

		boost::system::error_code error;
		boost::asio::read(tcp.sock,receive_buffer,boost::asio::transfer_at_least(tcp.read_size),error);
		
		if(error and error != boost::asio::error::eof){
			std::cerr << "receive failed: " << error.message() << std::endl;
		}
		return tcp;
	}

	friend tcp_wrapper& operator<<(tcp_wrapper& tcp,std::string str)
	{
		boost::asio::write(tcp.sock,boost::asio::buffer(str));
		return tcp;
	}

	friend tcp_wrapper& operator<<(tcp_wrapper& tcp,const char* str)
	{
		std::string mes_ = str;
		boost::asio::write(tcp.sock,boost::asio::buffer(mes_));
		return tcp;
	}

	boost::asio::ip::tcp::socket sock;
	std::size_t read_size;
};

} // namespace detail
#endif