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xboard2uci.cpp
1554 lines (1086 loc) · 37.1 KB
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xboard2uci.cpp
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// xboard2uci.cpp
// includes
#include <cerrno>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include "board.h"
#include "book.h"
#include "colour.h"
#include "engine.h"
#include "fen.h"
#include "game.h"
#include "gui.h"
#include "line.h"
#include "main.h"
#include "move.h"
#include "move_do.h"
#include "move_legal.h"
#include "option.h"
#include "parse.h"
#include "san.h"
#include "uci.h"
#include "uci2uci.h"
#include "util.h"
// constants
static const bool UseDebug = false;
static const bool DelayPong = false;
static const int StringSize = 4096;
// types
struct state_t {
int state;
bool computer[ColourNb];
int exp_move;
int resign_nb;
my_timer_t timer[1];
};
struct xb_t {
bool has_feature_memory;
bool has_feature_smp;
bool has_feature_egt;
bool analyse;
bool computer;
const char * name;
bool ics;
bool new_hack; // "new" is a C++ keyword
bool ponder;
int ping;
bool post;
int proto_ver;
bool result;
int mps;
double base;
double inc;
bool time_limit;
double time_max;
bool depth_limit;
int depth_max;
double my_time;
double opp_time;
};
enum dummy_state_t { WAIT, THINK, PONDER, ANALYSE };
// variables
static state_t State[1];
static xb_t XB[1];
// prototypes
static void comp_move (int move);
static void move_step (int move);
static void board_update ();
static void mess ();
static void no_mess (int move);
static void search_update ();
static void search_clear ();
static void update_remaining_time();
static int report_best_score();
static bool kibitz_throttle (bool searching);
static void start_protected_command();
static void end_protected_command();
static bool active ();
static bool ponder ();
static bool ponder_ok (int ponder_move);
static void stop_search ();
static void send_board (int extra_move);
static void send_pv ();
static void send_xboard_options ();
static void learn (int result);
// functions
// xboard2uci_init()
void xboard2uci_init() {
// init
game_clear(Game);
// state
State->state = WAIT;
State->computer[White] = false;
State->computer[Black] = true;
State->exp_move = MoveNone;
State->resign_nb = 0;
my_timer_reset(State->timer);
// yes there are engines that do not have the "Hash" option....
XB->has_feature_memory= uci_option_exist(Uci,"Hash");
XB->has_feature_smp = uci_thread_option_exist(Uci);
// TODO: support for other types of table bases
XB->has_feature_egt = uci_option_exist(Uci,"NalimovPath");
XB->analyse = false;
XB->computer = false;
XB->name = NULL;
my_string_set(&XB->name,"<empty>");
XB->ics = false;
XB->new_hack = true;
XB->ping = -1;
XB->ponder = false;
XB->post = false;
XB->proto_ver = 1;
XB->result = false;
XB->mps = 0;
XB->base = 300.0;
XB->inc = 0.0;
XB->time_limit = false;
XB->time_max = 5.0;
XB->depth_limit = false;
XB->depth_max = 127;
XB->my_time = 300.0;
XB->opp_time = 300.0;
}
// xboard2uci_gui_step()
void xboard2uci_gui_step(char string[]) {
int move;
char move_string[256];
board_t board[1];
if (false) {
} else if (match(string,"accepted *")) {
// ignore
} else if (match(string,"analyze")) {
State->computer[White] = false;
State->computer[Black] = false;
XB->analyse = true;
XB->new_hack = false;
ASSERT(!XB->result);
XB->result = false;
mess();
} else if (match(string,"bk")) {
if (option_get_bool("Book")) {
game_get_board(Game,board);
book_disp(board);
}
} else if (match(string,"black")) {
if (colour_is_black(game_turn(Game))) {
State->computer[White] = true;
State->computer[Black] = false;
XB->new_hack = true;
XB->result = false;
mess();
}
} else if (match(string,"computer")) {
XB->computer = true;
} else if (match(string,"draw")) {
if(uci_option_exist(Uci,"UCI_DrawOffers")){
my_log("POLYGLOT draw from XB received");
uci_send_option(Uci,"DrawOffer","%s","draw");}
} else if (match(string,"easy")) {
XB->ponder = false;
mess();
} else if (match(string,"edit")) {
// refuse
gui_send(GUI,"Error (unknown command): %s",string);
} else if (match(string,"exit")) {
State->computer[White] = false;
State->computer[Black] = false;
XB->analyse = false;
mess();
} else if (match(string,"force")) {
State->computer[White] = false;
State->computer[Black] = false;
mess();
} else if (match(string,"go")) {
State->computer[game_turn(Game)] = true;
State->computer[colour_opp(game_turn(Game))] = false;
XB->new_hack = false;
ASSERT(!XB->result);
XB->result = false;
mess();
} else if (match(string,"hard")) {
XB->ponder = true;
mess();
} else if (match(string,"hint")) {
if (option_get_bool("Book")) {
game_get_board(Game,board);
move = book_move(board,false);
if (move != MoveNone && move_is_legal(move,board)) {
move_to_san(move,board,move_string,256);
gui_send(GUI,"Hint: %s",move_string);
}
}
} else if (match(string,"ics *")) {
XB->ics = true;
} else if (match(string,"level * *:* *")) {
XB->mps = atoi(Star[0]);
XB->base = double(atoi(Star[1])) * 60.0 + double(atoi(Star[2]));
XB->inc = double(atoi(Star[3]));
} else if (match(string,"level * * *")) {
XB->mps = atoi(Star[0]);
XB->base = double(atoi(Star[1])) * 60.0;
XB->inc = double(atoi(Star[2]));
} else if (match(string,"name *")) {
my_string_set(&XB->name,Star[0]);
} else if (match(string,"new")) {
uci_send_isready(Uci);
my_log("POLYGLOT NEW GAME\n");
option_set("Chess960","false");
game_clear(Game);
if (XB->analyse) {
State->computer[White] = false;
State->computer[Black] = false;
} else {
State->computer[White] = false;
State->computer[Black] = true;
}
XB->new_hack = true;
XB->result = false;
XB->depth_limit = false;
XB->computer = false;
my_string_set(&XB->name,"<empty>");
board_update();
mess();
uci_send_ucinewgame(Uci);
} else if (match(string,"nopost")) {
XB->post = false;
} else if (match(string,"otim *")) {
XB->opp_time = double(atoi(Star[0])) / 100.0;
if (XB->opp_time < 0.0) XB->opp_time = 0.0;
} else if (match(string,"pause")) {
// refuse
gui_send(GUI,"Error (unknown command): %s",string);
} else if (match(string,"ping *")) {
// HACK; TODO: answer only after an engine move
if (DelayPong) {
if (XB->ping >= 0) gui_send(GUI,"pong %d",XB->ping); // HACK: get rid of old ping
XB->ping = atoi(Star[0]);
uci_send_isready(Uci);
} else {
ASSERT(XB->ping==-1);
gui_send(GUI,"pong %s",Star[0]);
}
} else if (match(string,"playother")) {
State->computer[game_turn(Game)] = false;
State->computer[colour_opp(game_turn(Game))] = true;
XB->new_hack = false;
ASSERT(!XB->result);
XB->result = false;
mess();
} else if (match(string,"post")) {
XB->post = true;
} else if (match(string,"protover *")) {
send_xboard_options();
} else if (match(string,"quit")) {
my_log("POLYGLOT *** \"quit\" from GUI ***\n");
quit();
} else if (match(string,"random")) {
// ignore
} else if (match(string,"rating * *")) {
// ignore
} else if (match(string,"remove")) {
if (game_pos(Game) >= 2) {
game_goto(Game,game_pos(Game)-2);
ASSERT(!XB->new_hack);
XB->new_hack = false; // HACK?
XB->result = false;
board_update();
mess();
}
} else if (match(string,"rejected *")) {
// ignore
} else if (match(string,"reset")) { // protover 3?
// refuse
gui_send(GUI,"Error (unknown command): %s",string);
} else if (false
|| match(string,"result * {*}")
|| match(string,"result * {* }")
|| match(string,"result * { *}")
|| match(string,"result * { * }")) {
my_log("POLYGLOT GAME END\n");
XB->result = true;
mess();
// book learning
if (option_get_bool("Book") && option_get_bool("BookLearn")) {
if (false) {
} else if (my_string_equal(Star[0],"1-0")) {
learn(+1);
} else if (my_string_equal(Star[0],"0-1")) {
learn(-1);
} else if (my_string_equal(Star[0],"1/2-1/2")) {
learn(0);
}
}
} else if (match(string,"resume")) {
// refuse
gui_send(GUI,"Error (unknown command): %s",string);
} else if (match(string,"option *=*")){
char *name=Star[0];
char *value=Star[1];
if(match(name, "Polyglot *")){
char *pg_name=Star[0];
polyglot_set_option(pg_name,value);
}else{
start_protected_command();
engine_send(Engine,"setoption name %s value %s",name,value);
end_protected_command();
}
} else if (match(string,"option *")){
char *name=Star[0];
start_protected_command();
engine_send(Engine,"setoption name %s",name);
end_protected_command();
} else if (XB->has_feature_smp && match(string,"cores *")){
int cores=atoi(Star[0]);
if(cores>=1){
// updating the number of cores
my_log("POLYGLOT setting the number of cores to %d\n",cores);
start_protected_command();
uci_set_threads(Uci,cores);
end_protected_command();
} else{
// refuse
gui_send(GUI,"Error (unknown command): %s",string);
}
} else if (XB->has_feature_egt && match(string,"egtpath * *")){
char *type=Star[0];
char *path=Star[1];
if(!my_string_case_equal(type,"nalimov")){
// refuse
gui_send(GUI,"Error (unsupported table base format): %s",string);
}else if(my_string_empty(path)){
// refuse
gui_send(GUI,"Error (unknown command): %s",string);
}else{
// updating NalimovPath
my_log("POLYGLOT setting the Nalimov path to %s\n",path);
start_protected_command();
uci_send_option(Uci,"NalimovPath","%s",path);
end_protected_command();
}
} else if (XB->has_feature_memory && match(string,"memory *")){
int memory = atoi(Star[0]);
int nalimov_cache;
int real_memory;
if(memory>=1){
// updating the available memory
my_log("POLYGLOT setting the amount of memory to %dMb\n",memory);
if(uci_get_option(Uci,"NalimovCache")>=0){
nalimov_cache=atoi(Uci->option[uci_get_option(Uci,"NalimovCache")].value);
}else{
nalimov_cache=0;
}
my_log("POLYGLOT Nalimov Cache is %dMb\n",nalimov_cache);
real_memory=memory-nalimov_cache;
if(real_memory>0){
start_protected_command();
uci_send_option(Uci,"Hash", "%d", real_memory);
end_protected_command();
}
}else{
// refuse
gui_send(GUI,"Error (unknown command): %s",string);
}
} else if (match(string,"sd *")) {
XB->depth_limit = true;
XB->depth_max = atoi(Star[0]);
} else if (match(string,"setboard *")) {
my_log("POLYGLOT FEN %s\n",Star[0]);
if (!game_init(Game,Star[0])) my_fatal("xboard_step(): bad FEN \"%s\"\n",Star[0]);
State->computer[White] = false;
State->computer[Black] = false;
XB->new_hack = true; // HACK?
XB->result = false;
board_update();
mess();
} else if (match(string,"st *")) {
XB->time_limit = true;
XB->time_max = double(atoi(Star[0]));
} else if (match(string,"time *")) {
XB->my_time = double(atoi(Star[0])) / 100.0;
if (XB->my_time < 0.0) XB->my_time = 0.0;
} else if (match(string,"undo")) {
if (game_pos(Game) >= 1) {
game_goto(Game,game_pos(Game)-1);
ASSERT(!XB->new_hack);
XB->new_hack = false; // HACK?
XB->result = false;
board_update();
mess();
}
} else if (match(string,"usermove *")) {
game_get_board(Game,board);
move = move_from_san(Star[0],board);
if (move != MoveNone && move_is_legal(move,board)) {
XB->new_hack = false;
ASSERT(!XB->result);
XB->result = false;
move_step(move);
no_mess(move);
} else {
gui_send(GUI,"Illegal move: %s",Star[0]);
}
} else if (match(string,"variant *")) {
if (my_string_equal(Star[0],"fischerandom")) {
option_set("Chess960","true");
} else {
option_set("Chess960","false");
}
} else if (match(string,"white")) {
if (colour_is_white(game_turn(Game))) {
State->computer[White] = false;
State->computer[Black] = true;
XB->new_hack = true;
XB->result = false;
mess();
}
} else if (match(string,"xboard")) {
// ignore
} else if (match(string,".")) { // analyse info
if (State->state == ANALYSE) {
int depth=Uci->best_depth;//HACK: don't clear engine-output window...
ASSERT(Uci->searching);
ASSERT(Uci->pending_nb>=1);
if (Uci->root_move != MoveNone && move_is_legal(Uci->root_move,Uci->board)) {
move_to_san(Uci->root_move,Uci->board,move_string,256);
gui_send(GUI,"stat01: %.0f "S64_FORMAT" %d %d %d %s",Uci->time*100.0,Uci->node_nb,/*Uci->*/depth,Uci->root_move_nb-(Uci->root_move_pos+1),Uci->root_move_nb,move_string);
} else {
gui_send(GUI,"stat01: %.0f "S64_FORMAT" %d %d %d",Uci->time*100.0,Uci->node_nb,/*Uci->*/depth,0,0); // HACK
}
}
} else if (match(string,"?")) { // move now
if (State->state == THINK) {
ASSERT(Uci->searching);
ASSERT(Uci->pending_nb>=1);
// HACK: just send "stop" to the engine
if (Uci->searching) {
my_log("POLYGLOT STOP SEARCH\n");
engine_send(Engine,"stop");
}
}
} else { // unknown command, maybe a move?
game_get_board(Game,board);
move = move_from_san(string,board);
if (move != MoveNone && move_is_legal(move,board)) {
XB->new_hack = false;
ASSERT(!XB->result);
XB->result = false;
move_step(move);
no_mess(move);
} else if (move != MoveNone) {
gui_send(GUI,"Illegal move: %s",string);
} else {
gui_send(GUI,"Error (unknown command): %s",string);
}
}
return;
}
// xboard2uci_engine_step()
void xboard2uci_engine_step(char string[]) {
int event;
event = uci_parse(Uci,string);
// react to events
if ((event & EVENT_READY) != 0) {
// the engine is now ready
if (!Uci->ready) {
Uci->ready = true;
// if (XB->proto_ver >= 2) xboard_send(XBoard,"feature done=1");
}
if (!DelayPong && XB->ping >= 0) {
gui_send(GUI,"pong %d",XB->ping);
XB->ping = -1;
}
}
if ((event & EVENT_MOVE) != 0 && State->state == THINK) {
// the engine is playing a move
// MEGA HACK: estimate remaining time because XBoard won't send it!
my_timer_stop(State->timer);
XB->my_time -= my_timer_elapsed_real(State->timer);
XB->my_time += XB->inc;
if (XB->mps != 0 && (game_move_nb(Game) + 1) % XB->mps == 0) XB->my_time += XB->base;
if (XB->my_time < 0.0) XB->my_time = 0.0;
// play the engine move
comp_move(Uci->best_move);
}
if ((event & EVENT_PV) != 0) {
// the engine has sent a new PV
send_pv();
}
if((event & (EVENT_DRAW|EVENT_RESIGN))!=0){
my_log("POYGLOT draw offer/resign from engine\n");
if(uci_option_exist(Uci,"UCI_DrawOffers")){
if(event & EVENT_DRAW)
gui_send(GUI,"offer draw");
else
gui_send(GUI,"resign");
}
}
}
// format_xboard_option_line
void format_xboard_option_line(char * option_line, option_t *opt){
int j;
char option_string[StringSize];
strcpy(option_line,"");
strcat(option_line,"feature option=\"");
if(opt->mode&PG){
strcat(option_line,"Polyglot ");
}
sprintf(option_string,"%s",opt->name);
strcat(option_line,option_string);
sprintf(option_string," -%s",opt->type);
strcat(option_line,option_string);
if(strcmp(opt->type,"button") && strcmp(opt->type,"combo")){
if(strcmp(opt->type,"check")){
sprintf(option_string," %s",opt->default_);
}else{
sprintf(option_string," %d",
strcmp(opt->default_,"true")?0:1);
}
strcat(option_line,option_string);
}
if(!strcmp(opt->type,"spin")){
sprintf(option_string," %s",opt->min);
strcat(option_line,option_string);
}
if(!strcmp(opt->type,"spin")){
sprintf(option_string," %s",opt->max);
strcat(option_line,option_string);
}
for(j=0;j<opt->var_nb;j++){
if(!strcmp(opt->var[j],opt->default_)){
sprintf(option_string," *%s",opt->var[j]);
}else{
sprintf(option_string," %s",opt->var[j]);
}
strcat(option_line,option_string);
if(j!=opt->var_nb-1){
strcat(option_line," ///");
}
}
strcat(option_line,"\"");
}
// send_xboard_options
static void send_xboard_options(){
int i;
char option_line[StringSize]="";
option_t *p=Option;
const char * name;
XB->proto_ver = atoi(Star[0]);
ASSERT(XB->proto_ver>=2);
gui_send(GUI,"feature done=0");
gui_send(GUI,"feature analyze=1");
gui_send(GUI,"feature colors=0");
gui_send(GUI,"feature draw=1");
gui_send(GUI,"feature ics=1");
gui_send(GUI,"feature myname=\"%s\"",option_get_string("EngineName"));
gui_send(GUI,"feature name=1");
gui_send(GUI,"feature pause=0");
gui_send(GUI,"feature ping=1");
gui_send(GUI,"feature playother=1");
gui_send(GUI,"feature reuse=1");
gui_send(GUI,"feature san=0");
gui_send(GUI,"feature setboard=1");
gui_send(GUI,"feature sigint=0");
gui_send(GUI,"feature sigterm=0");
gui_send(GUI,"feature time=1");
gui_send(GUI,"feature usermove=1");
if (XB->has_feature_memory){
gui_send(GUI,"feature memory=1");
}else{
gui_send(GUI,"feature memory=0");
}
if (XB->has_feature_smp){
gui_send(GUI,"feature smp=1");
}else{
gui_send(GUI,"feature smp=0");
}
if (XB->has_feature_egt){
// TODO: support for other types of table bases
gui_send(GUI,"feature egt=\"nalimov\"");
}else{
gui_send(GUI,"feature egt=\"\"");
}
if (uci_option_exist(Uci,"UCI_Chess960")) {
gui_send(GUI,"feature variants=\"normal,fischerandom\"");
} else {
gui_send(GUI,"feature variants=\"normal\"");
}
for(i=0;i<Uci->option_nb;i++){
if(my_string_case_equal(Uci->option[i].name,"UCI_AnalyseMode")) continue;
if(my_string_case_equal(Uci->option[i].name,"Ponder")) continue;
if(my_string_case_equal(Uci->option[i].name,"Hash")) continue;
if(my_string_case_equal(Uci->option[i].name,"NalimovPath")) continue;
if((name=uci_thread_option(Uci))!=NULL && my_string_case_equal(Uci->option[i].name,name)) continue;
format_xboard_option_line(option_line,Uci->option+i);
gui_send(GUI,"%s",option_line);
}
while(p->name){
if(p->mode &XBOARD){
format_xboard_option_line(option_line,p);
gui_send(GUI,"%s",option_line);
}
p++;
}
gui_send(GUI,"feature done=1");
}
// report_best_score()
static int report_best_score(){
if(!option_get_bool("ScoreWhite") || colour_is_white(Uci->board->turn)){
return Uci->best_score;
}else{
return -Uci->best_score;
}
}
// comp_move()
static void comp_move(int move) {
board_t board[1];
char string[256];
ASSERT(move_is_ok(move));
ASSERT(State->state==THINK);
ASSERT(!XB->analyse);
if(option_get_bool("RepeatPV"))
send_pv(); // to update time and nodes
// send the move
game_get_board(Game,board);
if (move_is_castle(move,board) && option_get_bool("Chess960")) {
if (!move_to_san(move,board,string,256)) my_fatal("comp_move(): move_to_san() failed\n"); // O-O/O-O-O
} else {
if (!move_to_can(move,board,string,256)) my_fatal("comp_move(): move_to_can() failed\n");
}
gui_send(GUI,"move %s",string);
// resign?
if (option_get_bool("Resign") && Uci->root_move_nb > 1) {
if (Uci->best_score <= -abs(option_get_int("ResignScore"))) {
State->resign_nb++;
my_log("POLYGLOT %d move%s with resign score\n",State->resign_nb,(State->resign_nb>1)?"s":"");
if (State->resign_nb >= option_get_int("ResignMoves")) {
my_log("POLYGLOT *** RESIGN ***\n");
gui_send(GUI,"resign");
}
} else {
if (State->resign_nb > 0) my_log("POLYGLOT resign reset (State->resign_nb=%d)\n",State->resign_nb);
State->resign_nb = 0;
}
}
// play the move
move_step(move);
no_mess(move);
}
// move_step()
static void move_step(int move) {
board_t board[1];
char move_string[256];
ASSERT(move_is_ok(move));
// log
game_get_board(Game,board);
if (move != MoveNone && move_is_legal(move,board)) {
move_to_san(move,board,move_string,256);
my_log("POLYGLOT MOVE %s\n",move_string);
} else {
move_to_can(move,board,move_string,256);
my_log("POLYGLOT ILLEGAL MOVE \"%s\"\n",move_string);
board_disp(board);
my_fatal("move_step(): illegal move \"%s\"\n",move_string);
}
// play the move
game_add_move(Game,move);
board_update();
}
// board_update()
static void board_update() {
// handle game end
ASSERT(!XB->result);
switch (game_status(Game)) {
case PLAYING:
break;
case WHITE_MATES:
gui_send(GUI,"1-0 {White mates}");
break;
case BLACK_MATES:
gui_send(GUI,"0-1 {Black mates}");
break;
case STALEMATE:
gui_send(GUI,"1/2-1/2 {Stalemate}");
break;
case DRAW_MATERIAL:
gui_send(GUI,"1/2-1/2 {Draw by insufficient material}");
break;
case DRAW_FIFTY:
gui_send(GUI,"1/2-1/2 {Draw by fifty-move rule}");
break;
case DRAW_REPETITION:
gui_send(GUI,"1/2-1/2 {Draw by repetition}");
break;
default:
ASSERT(false);
break;
}
}
// mess()
static void mess() {
// clear state variables
State->resign_nb = 0;
State->exp_move = MoveNone;
my_timer_reset(State->timer);
// abort a possible search
stop_search();
// calculate the new state
if (false) {
} else if (!active()) {
State->state = WAIT;
my_log("POLYGLOT WAIT\n");
} else if (XB->analyse) {
State->state = ANALYSE;
my_log("POLYGLOT ANALYSE\n");
} else if (State->computer[game_turn(Game)]) {
State->state = THINK;
my_log("POLYGLOT THINK\n");
} else {
State->state = WAIT;
my_log("POLYGLOT WAIT\n");
}
search_update();
}
// no_mess()
static void no_mess(int move) {