/*
Stockfish, a UCI chess playing engine derived from Glaurung 2.1
Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
- Copyright (C) 2008-2009 Marco Costalba
+ Copyright (C) 2008-2010 Marco Costalba, Joona Kiiski, Tord Romstad
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 "ucioption.h"
using std::string;
+using std::cout;
+using std::endl;
////
//// Local definitions
namespace {
- ///
- /// Types
- ///
-
enum OptionType { SPIN, COMBO, CHECK, STRING, BUTTON };
- typedef std::vector<string> ComboValues;
+ typedef std::vector<string> StrVector;
struct Option {
OptionType type;
size_t idx;
int minValue, maxValue;
- ComboValues comboValues;
+ StrVector comboValues;
Option();
Option(const char* defaultValue, OptionType = STRING);
Option(bool defaultValue, OptionType = CHECK);
Option(int defaultValue, int minValue, int maxValue);
- bool operator<(const Option& o) const { return this->idx < o.idx; }
+ bool operator<(const Option& o) const { return idx < o.idx; }
};
+ typedef std::vector<Option> OptionsVector;
typedef std::map<string, Option> Options;
- ///
- /// Constants
- ///
+ Options options;
+
+ // stringify() converts a value of type T to a std::string
+ template<typename T>
+ string stringify(const T& v) {
+
+ std::ostringstream ss;
+ ss << v;
+ return ss.str();
+ }
+
+ Option::Option() {} // To allow insertion in a std::map
+
+ Option::Option(const char* def, OptionType t)
+ : defaultValue(def), currentValue(def), type(t), idx(options.size()), minValue(0), maxValue(0) {}
- // load_defaults populates the options map with the hard
+ Option::Option(bool def, OptionType t)
+ : defaultValue(stringify(def)), currentValue(stringify(def)), type(t), idx(options.size()), minValue(0), maxValue(0) {}
+
+ Option::Option(int def, int minv, int maxv)
+ : defaultValue(stringify(def)), currentValue(stringify(def)), type(SPIN), idx(options.size()), minValue(minv), maxValue(maxv) {}
+
+ // load_defaults() populates the options map with the hard
// coded names and default values.
void load_defaults(Options& o) {
o["Use Search Log"] = Option(false);
o["Search Log Filename"] = Option("SearchLog.txt");
o["Book File"] = Option("book.bin");
+ o["Best Book Move"] = Option(false);
o["Mobility (Middle Game)"] = Option(100, 0, 200);
o["Mobility (Endgame)"] = Option(100, 0, 200);
o["Pawn Structure (Middle Game)"] = Option(100, 0, 200);
o["Space"] = Option(100, 0, 200);
o["Aggressiveness"] = Option(100, 0, 200);
o["Cowardice"] = Option(100, 0, 200);
- o["King Safety Curve"] = Option("Quadratic", COMBO);
-
- o["King Safety Curve"].comboValues.push_back("Quadratic");
- o["King Safety Curve"].comboValues.push_back("Linear"); /*, "From File"*/
-
- o["King Safety Coefficient"] = Option(40, 1, 100);
- o["King Safety X Intercept"] = Option(0, 0, 20);
- o["King Safety Max Slope"] = Option(30, 10, 100);
- o["King Safety Max Value"] = Option(500, 100, 1000);
- o["Queen Contact Check Bonus"] = Option(3, 0, 8);
- o["Queen Check Bonus"] = Option(2, 0, 4);
- o["Rook Check Bonus"] = Option(1, 0, 4);
- o["Bishop Check Bonus"] = Option(1, 0, 4);
- o["Knight Check Bonus"] = Option(1, 0, 4);
- o["Discovered Check Bonus"] = Option(3, 0, 8);
- o["Mate Threat Bonus"] = Option(3, 0, 8);
o["Check Extension (PV nodes)"] = Option(2, 0, 2);
o["Check Extension (non-PV nodes)"] = Option(1, 0, 2);
- o["Single Reply Extension (PV nodes)"] = Option(2, 0, 2);
- o["Single Reply Extension (non-PV nodes)"] = Option(2, 0, 2);
- o["Mate Threat Extension (PV nodes)"] = Option(0, 0, 2);
- o["Mate Threat Extension (non-PV nodes)"] = Option(0, 0, 2);
+ o["Single Evasion Extension (PV nodes)"] = Option(2, 0, 2);
+ o["Single Evasion Extension (non-PV nodes)"] = Option(2, 0, 2);
+ o["Mate Threat Extension (PV nodes)"] = Option(2, 0, 2);
+ o["Mate Threat Extension (non-PV nodes)"] = Option(2, 0, 2);
o["Pawn Push to 7th Extension (PV nodes)"] = Option(1, 0, 2);
o["Pawn Push to 7th Extension (non-PV nodes)"] = Option(1, 0, 2);
o["Passed Pawn Extension (PV nodes)"] = Option(1, 0, 2);
o["Passed Pawn Extension (non-PV nodes)"] = Option(0, 0, 2);
o["Pawn Endgame Extension (PV nodes)"] = Option(2, 0, 2);
o["Pawn Endgame Extension (non-PV nodes)"] = Option(2, 0, 2);
- o["Full Depth Moves (PV nodes)"] = Option(10, 1, 100);
- o["Full Depth Moves (non-PV nodes)"] = Option(3, 1, 100);
- o["Threat Depth"] = Option(5, 0, 100);
- o["Randomness"] = Option(0, 0, 10);
o["Minimum Split Depth"] = Option(4, 4, 7);
o["Maximum Number of Threads per Split Point"] = Option(5, 4, 8);
- o["Threads"] = Option(1, 1, 8);
- o["Hash"] = Option(32, 4, 4096);
+ o["Threads"] = Option(1, 1, MAX_THREADS);
+ o["Hash"] = Option(32, 4, 8192);
o["Clear Hash"] = Option(false, BUTTON);
o["New Game"] = Option(false, BUTTON);
o["Ponder"] = Option(true);
o["OwnBook"] = Option(true);
o["MultiPV"] = Option(1, 1, 500);
- o["UCI_ShowCurrLine"] = Option(false);
+ o["Emergency Move Horizon"] = Option(40, 0, 50);
+ o["Emergency Base Time"] = Option(200, 0, 60000);
+ o["Emergency Move Time"] = Option(70, 0, 5000);
+ o["Minimum Thinking Time"] = Option(20, 0, 5000);
o["UCI_Chess960"] = Option(false);
o["UCI_AnalyseMode"] = Option(false);
it->second.name = it->first;
}
- ///
- /// Variables
- ///
-
- Options options;
-
- // stringify converts a value of type T to a std::string
- template<typename T>
- string stringify(const T& v) {
-
- std::ostringstream ss;
- ss << v;
- return ss.str();
- }
-
-
- // get_option_value implements the various get_option_value_<type>
- // functions defined later, because only the option value
- // type changes a template seems a proper solution.
+ // get_option_value() implements the various get_option_value_<type>
+ // functions defined later.
template<typename T>
T get_option_value(const string& optionName) {
return ret;
}
- // Specialization for std::string where instruction 'ss >> ret;'
+ // Specialization for std::string where instruction 'ss >> ret'
// would erroneusly tokenize a string with spaces.
-
template<>
string get_option_value<string>(const string& optionName) {
}
-////
-//// Functions
-////
-/// init_uci_options() initializes the UCI options. Currently, the only
-/// thing this function does is to initialize the default value of the
-/// "Threads" parameter to the number of available CPU cores.
+/// init_uci_options() initializes the UCI options. Currently, the only thing
+/// this function does is to initialize the default value of "Threads" and
+/// "Minimum Split Depth" parameters according to the number of CPU cores.
void init_uci_options() {
load_defaults(options);
- // Limit the default value of "Threads" to 7 even if we have 8 CPU cores.
- // According to Ken Dail's tests, Glaurung plays much better with 7 than
- // with 8 threads. This is weird, but it is probably difficult to find out
- // why before I have a 8-core computer to experiment with myself.
assert(options.find("Threads") != options.end());
assert(options.find("Minimum Split Depth") != options.end());
- options["Threads"].defaultValue = stringify(Min(cpu_count(), 7));
- options["Threads"].currentValue = stringify(Min(cpu_count(), 7));
+ Option& thr = options["Threads"];
+ Option& msd = options["Minimum Split Depth"];
+
+ thr.defaultValue = thr.currentValue = stringify(cpu_count());
+
+ if (cpu_count() >= 8)
+ msd.defaultValue = msd.currentValue = stringify(7);
}
void print_uci_options() {
- static const char optionTypeName[][16] = {
+ const char OptTypeName[][16] = {
"spin", "combo", "check", "string", "button"
};
// Build up a vector out of the options map and sort it according to idx
// field, that is the chronological insertion order in options map.
- std::vector<Option> vec;
+ OptionsVector vec;
for (Options::const_iterator it = options.begin(); it != options.end(); ++it)
vec.push_back(it->second);
std::sort(vec.begin(), vec.end());
- for (std::vector<Option>::const_iterator it = vec.begin(); it != vec.end(); ++it)
+ for (OptionsVector::const_iterator it = vec.begin(); it != vec.end(); ++it)
{
- std::cout << "\noption name " << it->name
- << " type " << optionTypeName[it->type];
+ cout << "\noption name " << it->name << " type " << OptTypeName[it->type];
if (it->type == BUTTON)
continue;
if (it->type == CHECK)
- std::cout << " default " << (it->defaultValue == "1" ? "true" : "false");
+ cout << " default " << (it->defaultValue == "1" ? "true" : "false");
else
- std::cout << " default " << it->defaultValue;
+ cout << " default " << it->defaultValue;
if (it->type == SPIN)
- std::cout << " min " << it->minValue << " max " << it->maxValue;
+ cout << " min " << it->minValue << " max " << it->maxValue;
else if (it->type == COMBO)
- for (ComboValues::const_iterator itc = it->comboValues.begin();
- itc != it->comboValues.end(); ++itc)
- std::cout << " var " << *itc;
+ {
+ StrVector::const_iterator itc;
+ for (itc = it->comboValues.begin(); itc != it->comboValues.end(); ++itc)
+ cout << " var " << *itc;
+ }
}
- std::cout << std::endl;
+ cout << endl;
}
}
-/// set_option_value() inserts a new value for a UCI parameter. Note that
-/// the function does not check that the new value is legal for the given
-/// parameter: This is assumed to be the responsibility of the GUI.
+/// set_option_value() inserts a new value for a UCI parameter
void set_option_value(const string& name, const string& value) {
+ if (options.find(name) == options.end())
+ {
+ cout << "No such option: " << name << endl;
+ return;
+ }
+
// UCI protocol uses "true" and "false" instead of "1" and "0", so convert
// value according to standard C++ convention before to store it.
string v(value);
else if (v == "false")
v = "0";
- if (options.find(name) != options.end())
- options[name].currentValue = v;
- else
- std::cout << "No such option: " << name << std::endl;
+ // Normally it's up to the GUI to check for option's limits,
+ // but we could receive the new value directly from the user
+ // by teminal window. So let's check the bounds anyway.
+ Option& opt = options[name];
+
+ if (opt.type == CHECK && v != "0" && v != "1")
+ return;
+
+ else if (opt.type == SPIN)
+ {
+ int val = atoi(v.c_str());
+ if (val < opt.minValue || val > opt.maxValue)
+ return;
+ }
+ opt.currentValue = v;
}
bool button_was_pressed(const string& buttonName) {
if (!get_option_value<bool>(buttonName))
- return false;
+ return false;
set_option_value(buttonName, "false");
return true;
}
-
-
-namespace {
-
- // Define constructors of Option class.
-
- Option::Option() {} // To allow insertion in a std::map
-
- Option::Option(const char* def, OptionType t)
- : defaultValue(def), currentValue(def), type(t), idx(options.size()), minValue(0), maxValue(0) {}
-
- Option::Option(bool def, OptionType t)
- : defaultValue(stringify(def)), currentValue(stringify(def)), type(t), idx(options.size()), minValue(0), maxValue(0) {}
-
- Option::Option(int def, int minv, int maxv)
- : defaultValue(stringify(def)), currentValue(stringify(def)), type(SPIN), idx(options.size()), minValue(minv), maxValue(maxv) {}
-
-}