/*
Stockfish, a UCI chess playing engine derived from Glaurung 2.1
Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
- Copyright (C) 2008 Marco Costalba
+ Copyright (C) 2008-2009 Marco Costalba
Stockfish is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include "uci.h"
#include "ucioption.h"
+using namespace std;
////
//// Local definitions:
namespace {
- // UCIInputParser is a class for parsing UCI input. The class
+ // UCIInputParser is a class for parsing UCI input. The class
// is actually a string stream built on a given input string.
- typedef std::istringstream UCIInputParser;
+ typedef istringstream UCIInputParser;
- // The root position. This is set up when the user (or in practice, the GUI)
- // sends the "position" UCI command. The root position is sent to the think()
+ // The root position. This is set up when the user (or in practice, the GUI)
+ // sends the "position" UCI command. The root position is sent to the think()
// function when the program receives the "go" command.
Position RootPosition;
// Local functions
- bool handle_command(const std::string& command);
+ bool handle_command(const string& command);
void set_option(UCIInputParser& uip);
void set_position(UCIInputParser& uip);
bool go(UCIInputParser& uip);
void uci_main_loop() {
RootPosition.from_fen(StartPosition);
- std::string command;
+ string command;
do {
// Wait for a command from stdin
- if (!std::getline(std::cin, command))
+ if (!getline(cin, command))
command = "quit";
} while (handle_command(command));
// and calls the appropriate functions. In addition to the UCI
// commands, the function also supports a few debug commands.
- bool handle_command(const std::string& command) {
+ bool handle_command(const string& command) {
UCIInputParser uip(command);
- std::string token;
+ string token;
- uip >> token; // operator >> skips any whitespace
+ uip >> token; // operator>>() skips any whitespace
if (token == "quit")
return false;
if (token == "uci")
{
- std::cout << "id name " << engine_name() << std::endl
- << "id author Tord Romstad, Marco Costalba"
- << std::endl;
+ cout << "id name " << engine_name()
+ << "\nid author Tord Romstad, Marco Costalba, Joona Kiiski\n";
print_uci_options();
- std::cout << "uciok" << std::endl;
+ cout << "uciok" << endl;
}
else if (token == "ucinewgame")
{
- TT.clear();
+ push_button("Clear Hash");
Position::init_piece_square_tables();
RootPosition.from_fen(StartPosition);
}
else if (token == "isready")
- std::cout << "readyok" << std::endl;
+ cout << "readyok" << endl;
else if (token == "position")
set_position(uip);
else if (token == "setoption")
else if (token == "eval")
{
EvalInfo ei;
- std::cout << "Incremental mg: " << RootPosition.mg_value()
- << std::endl;
- std::cout << "Incremental eg: " << RootPosition.eg_value()
- << std::endl;
- std::cout << "Full eval: "
- << evaluate(RootPosition, ei, 0)
- << std::endl;
+ cout << "Incremental mg: " << RootPosition.mg_value()
+ << "\nIncremental eg: " << RootPosition.eg_value()
+ << "\nFull eval: " << evaluate(RootPosition, ei, 0) << endl;
}
else if (token == "key")
- {
- std::cout << "key: " << std::hex << RootPosition.get_key()
- << " material key: " << RootPosition.get_material_key()
- << " pawn key: " << RootPosition.get_pawn_key()
- << std::endl;
- }
+ cout << "key: " << hex << RootPosition.get_key()
+ << "\nmaterial key: " << RootPosition.get_material_key()
+ << "\npawn key: " << RootPosition.get_pawn_key() << endl;
else
{
- std::cout << "Unknown command: " << command << std::endl;
+ cout << "Unknown command: " << command << endl;
while (!uip.eof())
{
uip >> token;
- std::cout << token << std::endl;
+ cout << token << endl;
}
}
return true;
// set_position() is called when Stockfish receives the "position" UCI
- // command. The input parameter is a UCIInputParser. It is assumed
+ // command. The input parameter is a UCIInputParser. It is assumed
// that this parser has consumed the first token of the UCI command
// ("position"), and is ready to read the second token ("startpos"
// or "fen", if the input is well-formed).
void set_position(UCIInputParser& uip) {
- std::string token;
+ string token;
- uip >> token; // operator >> skips any whitespace
+ uip >> token; // operator>>() skips any whitespace
if (token == "startpos")
RootPosition.from_fen(StartPosition);
else if (token == "fen")
{
- std::string fen;
+ string fen;
while (token != "moves" && !uip.eof())
{
- uip >> token;
- fen += token;
- fen += ' ';
+ uip >> token;
+ fen += token;
+ fen += ' ';
}
RootPosition.from_fen(fen);
}
if (RootPosition.rule_50_counter() == 0)
RootPosition.reset_game_ply();
}
- // Our StateInfo st is about going out of scope,
- // so save its content before they disappear.
- RootPosition.setStartState(st);
+ // Our StateInfo st is about going out of scope so copy
+ // its content inside RootPosition before they disappear.
+ RootPosition.saveState();
}
}
}
// set_option() is called when Stockfish receives the "setoption" UCI
- // command. The input parameter is a UCIInputParser. It is assumed
+ // command. The input parameter is a UCIInputParser. It is assumed
// that this parser has consumed the first token of the UCI command
// ("setoption"), and is ready to read the second token ("name", if
// the input is well-formed).
void set_option(UCIInputParser& uip) {
- std::string token, name;
+ string token, name;
uip >> token;
if (token == "name")
}
if (token == "value")
{
- std::getline(uip, token); // reads until end of line
+ // Skip whitespace. There should be a better way to do this, but
+ // I don't know how...
+ while(isspace(uip.get()));
+ uip.unget();
+
+ getline(uip, token); // reads until end of line
set_option_value(name, token);
} else
push_button(name);
}
- // go() is called when Stockfish receives the "go" UCI command. The
+ // go() is called when Stockfish receives the "go" UCI command. The
// input parameter is a UCIInputParser. It is assumed that this
// parser has consumed the first token of the UCI command ("go"),
// and is ready to read the second token. The function sets the
bool go(UCIInputParser& uip) {
- std::string token;
+ string token;
int time[2] = {0, 0}, inc[2] = {0, 0};
int movesToGo = 0, depth = 0, nodes = 0, moveTime = 0;
assert(RootPosition.is_ok());
- return think(RootPosition, infinite, ponder, RootPosition.side_to_move(), time,
- inc, movesToGo, depth, nodes, moveTime, searchMoves);
+ return think(RootPosition, infinite, ponder, RootPosition.side_to_move(),
+ time, inc, movesToGo, depth, nodes, moveTime, searchMoves);
}
+
}