// position() is called when engine receives the "position" UCI command.
// The function sets up the position described in the given FEN string ("fen")
// or the starting position ("startpos") and then makes the moves given in the
// following move list ("moves").
public static void position(Position pos, istringstream @is)
{
Move m;
string token;
string fen;
@is >> token;
if (token == "startpos")
{
fen = ((char)StartFEN).ToString();
@is >> token; // Consume "moves" token if any
}
else if (token == "fen")
{
while (@is >> token && token != "moves")
{
fen += token + " ";
}
}
else
{
return;
}
pos.set(fen, GlobalMembersUcioption.Options["UCI_Chess960"], GlobalMembersThread.Threads.main());
#if StateStackPtr_ConditionalDefinition1
SetupStates = std.auto_ptr <Stack <StateInfo> >(new Stack <StateInfo>());
#elif StateStackPtr_ConditionalDefinition2
SetupStates = std.auto_ptr <Stack <StateInfo> >(new Stack <StateInfo>());
#else
SetupStates = Search.StateStackPtr(new Stack <StateInfo>());
#endif
// Parse move list (if any)
while (@is >> token && (m = GlobalMembersUci.to_move(pos, token)) != Move.MOVE_NONE)
{
SetupStates.push(new StateInfo());
pos.do_move(m, SetupStates.top());
}
}
// go() is called when engine receives the "go" UCI command. The function sets
// the thinking time and other parameters from the input string, then starts
// the search.
public static void go(Position pos, istringstream @is)
{
Search.LimitsType limits = new Search.LimitsType();
string token;
while (@is >> token)
{
if (token == "searchmoves")
{
while (@is >> token)
{
limits.searchmoves.Add(GlobalMembersUci.to_move(pos, token));
}
}
else if (token == "wtime")
{
@is >> limits.time[(int)Color.WHITE];
}
else if (token == "btime")
{
@is >> limits.time[(int)Color.BLACK];
}
else if (token == "winc")
{
@is >> limits.inc[(int)Color.WHITE];
}
else if (token == "binc")
{
@is >> limits.inc[(int)Color.BLACK];
}
else if (token == "movestogo")
{
@is >> limits.movestogo;
}
else if (token == "depth")
{
@is >> limits.depth;
}
else if (token == "nodes")
{
@is >> limits.nodes;
}
else if (token == "movetime")
{
@is >> limits.movetime;
}
else if (token == "mate")
{
@is >> limits.mate;
}
else if (token == "infinite")
{
limits.infinite = true;
}
else if (token == "ponder")
{
limits.ponder = true;
}
}
GlobalMembersThread.Threads.start_thinking(pos, limits, SetupStates);
}