Hyperion.cpp

#include "Hyperion.h"

#include <iomanip>
#include <iostream>

int main()
{
    using namespace hyperion;

    attacks::initialize();

    Position position{};
    MoveList<> moves{};
    movegen::generateMoves(position, moves);


    std::cout << "Hyperion 4-Player Chess Engine Core\n";
    std::cout << "Playable squares: " << board::valid_mask.popcount() << '\n';
    std::cout << "Starting pieces: " << position.occupied().popcount() << '\n';
    std::cout << "Legal opening moves for Red: " << moves.size() << '\n';
    std::cout << "Slider backend: "
        << (attacks::slider_backend() == attacks::SliderBackend::Pext
            ? "BMI2/PEXT compressed ray tables"
            : "ray scan + nearest blocker")
        << '\n';
    std::cout << "BMI2 available: " << std::boolalpha
        << attacks::pext_available() << '\n';
    std::cout << "PEXT table memory: "
        << std::fixed << std::setprecision(2)
        << static_cast<double>(attacks::pext_table_bytes()) / (1024.0 * 1024.0)
        << " MiB\n";
    std::cout << "Perft(2): " << movegen::perft(position, 2) << '\n';

    return 0;
}