/** Solves the current state with dfpn using the current hashtable. */
void DfpnCommands::CmdSolveState(HtpCommand& cmd)
{
cmd.CheckNuArgLessEqual(3);
HexColor colorToMove = m_game.Board().WhoseTurn();
if (cmd.NuArg() >= 1)
colorToMove = HtpUtil::ColorArg(cmd, 0);
// DfpnBounds::MAX_WORK cannot be used as an argument to ArgMinMax()
// directly, because it is an integral constant class member that is not
// defined anywhere and arguments to ArgMinMax() are passed by reference.
// Older versions of GCC (including the current Cygwin GCC 4.3.4) generate
// and error ("undefined reference to DfpnBounds::MAX_WORK"), probably in
// accordance to the C++ standard. The best solution would be to change
// GtpCommand::ArgMinMax() in Fuego to pass arguments by value.
const DfpnBoundType maxWork = DfpnBounds::MAX_WORK;
DfpnBoundType maxPhi = maxWork;
DfpnBoundType maxDelta = maxWork;
if (cmd.NuArg() >= 2)
maxPhi = cmd.ArgMinMax<DfpnBoundType>(1, 0, maxWork);
if (cmd.NuArg() >= 3)
maxDelta = cmd.ArgMinMax<DfpnBoundType>(2, 0, maxWork);
DfpnBounds maxBounds(maxPhi, maxDelta);
PointSequence pv;
HexBoard& brd = m_env.SyncBoard(m_game.Board());
HexColor winner
= m_solver.StartSearch(HexState(m_game.Board(), colorToMove), brd,
m_positions, pv, maxBounds);
cmd << winner;
}
/** Opens a database.
Usage: "db-open [filename]"
*/
void DfpnCommands::CmdOpenDB(HtpCommand& cmd)
{
cmd.CheckNuArgLessEqual(3);
std::string filename = cmd.Arg(0);
try {
m_db.reset(new DfpnDB(filename));
}
catch (BenzeneException& e) {
m_db.reset(0);
throw HtpFailure() << "Error opening db: '" << e.what() << "'\n";
}
}
