Function process_command

crawl-ref/source/directn.cc:2542–2583

    }

    void process_command(command_type cmd)
    {
        // the chooser needs a cursor, but we need to hide it here
        cursor_control cc(false);
        bool loop_done = m_dc.process_command(cmd);

        // Don't allow going out of bounds.
        if (!crawl_view.in_viewport_g(m_dc.target()))
            m_dc.set_target(old_target);

        // Update ray and flag any redraws that will be needed if the loop is
        // not done.
        if (old_target != m_dc.target())
        {
            m_dc.have_beam = m_dc.show_beam
                             && find_ray(you.pos(), m_dc.target(), m_dc.beam,
                                         opc_solid_see, you.current_vision);
            m_dc.need_text_redraw = true;
            m_dc.need_viewport_redraw = true;
            m_dc.need_cursor_redraw = true;
        }

        if (loop_done)
        {
            m_is_alive = false;

            if (!m_dc.just_looking && !m_dc.move_is_ok())
            {
                m_dc.moves.isCancel = true;
                m_dc.moves.isValid = false;
            }
            return;
        }

        if (m_dc.need_viewport_redraw || m_dc.need_cursor_redraw
            || m_dc.need_text_redraw || m_dc.need_all_redraw)
        {
            _expose();
        }

        old_target = m_dc.target();
    }

    bool is_alive()
    {