#include <string>
#include "evaluate.h"
-#include "notation.h"
+#include "movegen.h"
#include "position.h"
#include "search.h"
#include "thread.h"
SetupStates = Search::StateStackPtr(new std::stack<StateInfo>());
// Parse move list (if any)
- while (is >> token && (m = move_from_uci(pos, token)) != MOVE_NONE)
+ while (is >> token && (m = UCI::to_move(pos, token)) != MOVE_NONE)
{
SetupStates->push(StateInfo());
pos.do_move(m, SetupStates->top());
{
if (token == "searchmoves")
while (is >> token)
- limits.searchmoves.push_back(move_from_uci(pos, token));
+ limits.searchmoves.push_back(UCI::to_move(pos, token));
else if (token == "wtime") is >> limits.time[WHITE];
else if (token == "btime") is >> limits.time[BLACK];
istringstream is(cmd);
+ token.clear(); // getline() could return empty or blank line
is >> skipws >> token;
if (token == "quit" || token == "stop" || token == "ponderhit")
else if (token == "setoption") setoption(is);
else if (token == "flip") pos.flip();
else if (token == "bench") benchmark(pos, is);
- else if (token == "d") sync_cout << pos.pretty() << sync_endl;
+ else if (token == "d") sync_cout << pos << sync_endl;
else if (token == "isready") sync_cout << "readyok" << sync_endl;
else if (token == "eval") sync_cout << Eval::trace(pos) << sync_endl;
else
Threads.wait_for_think_finished(); // Cannot quit whilst the search is running
}
+
+
+/// format_value() converts a Value to a string suitable for use with the UCI
+/// protocol specifications:
+///
+/// cp <x> The score from the engine's point of view in centipawns.
+/// mate <y> Mate in y moves, not plies. If the engine is getting mated
+/// use negative values for y.
+
+string UCI::format_value(Value v, Value alpha, Value beta) {
+
+ stringstream ss;
+
+ if (abs(v) < VALUE_MATE - MAX_PLY)
+ ss << "cp " << v * 100 / PawnValueEg;
+ else
+ ss << "mate " << (v > 0 ? VALUE_MATE - v + 1 : -VALUE_MATE - v) / 2;
+
+ ss << (v >= beta ? " lowerbound" : v <= alpha ? " upperbound" : "");
+
+ return ss.str();
+}
+
+
+/// format_square() converts a Square to a string (g1, a7, etc.)
+
+std::string UCI::format_square(Square s) {
+
+ char ch[] = { char('a' + file_of(s)),
+ char('1' + rank_of(s)), 0 }; // Zero-terminating
+ return ch;
+}
+
+
+/// format_move() converts a Move to a string in coordinate notation
+/// (g1f3, a7a8q, etc.). The only special case is castling moves, where we print
+/// in the e1g1 notation in normal chess mode, and in e1h1 notation in chess960
+/// mode. Internally castling moves are always encoded as "king captures rook".
+
+string UCI::format_move(Move m, bool chess960) {
+
+ Square from = from_sq(m);
+ Square to = to_sq(m);
+
+ if (m == MOVE_NONE)
+ return "(none)";
+
+ if (m == MOVE_NULL)
+ return "0000";
+
+ if (type_of(m) == CASTLING && !chess960)
+ to = make_square(to > from ? FILE_G : FILE_C, rank_of(from));
+
+ string move = format_square(from) + format_square(to);
+
+ if (type_of(m) == PROMOTION)
+ move += " pnbrqk"[promotion_type(m)];
+
+ return move;
+}
+
+
+/// to_move() takes a position and a string representing a move in
+/// simple coordinate notation and returns an equivalent legal Move if any.
+
+Move UCI::to_move(const Position& pos, string& str) {
+
+ if (str.length() == 5) // Junior could send promotion piece in uppercase
+ str[4] = char(tolower(str[4]));
+
+ for (MoveList<LEGAL> it(pos); *it; ++it)
+ if (str == format_move(*it, pos.is_chess960()))
+ return *it;
+
+ return MOVE_NONE;
+}