C++ (Cpp) GameState::final_score 예제들

예제 #1

파일: UCTSearch.cpp 프로젝트: TFiFiE/lizzie

SearchResult UCTSearch::play_simulation(GameState & currstate,
                                        UCTNode* const node) {
    const auto color = currstate.get_to_move();
    auto result = SearchResult{};

    node->virtual_loss();

    if (!node->has_children()) {
        if (currstate.get_passes() >= 2) {
            auto score = currstate.final_score();
            result = SearchResult::from_score(score);
        } else if (m_nodes < MAX_TREE_SIZE) {
            auto mem_full_pct = m_nodes / static_cast<float>(MAX_TREE_SIZE);
            float eval;
            auto success =
                node->create_children(m_nodes, currstate, eval, mem_full_pct);
            if (success) {
                result = SearchResult::from_eval(eval);
            }
        }
    }

    if (node->has_children() && !result.valid()) {
        auto next = node->uct_select_child(color, node == m_root.get());

        if (next != nullptr) {
            auto move = next->get_move();

            currstate.play_move(move);
            if (move != FastBoard::PASS && currstate.superko()) {
                next->invalidate();
            } else {
                result = play_simulation(currstate, next);
            }
        }
    }

    if (result.valid()) {
        node->update(result.eval());
    }
    node->virtual_loss_undo();

    return result;
}