Method DoInput

Descent3/hudmessage.cpp:1795–1873

}

void MsgListConsole::DoInput() {
  if (m_opened) {
    int i, offset_count = 0; // = ddio_KeyDownCount(KEY_DOWN) - ddio_KeyDownCount(KEY_UP);
    float key_time = ddio_KeyDownTime(KEY_DOWN) - ddio_KeyDownTime(KEY_UP);
    char *lineptr;

    if (m_numlines <= n_conlines) {
      offset_count = 0; // no need to offset if no need to scroll
    }

    if (key_time == 0.0f) {
      m_keydowntime = 0.0f;
    } else {
      m_keydowntime += key_time;
    }
    if (m_keydowntime < -0.1f) {
      offset_count = -1;
      m_keydowntime = 0.0f;
    } else if (m_keydowntime > 0.1f) {
      offset_count = 1;
      m_keydowntime = 0.0f;
    }

    //	scroll offset_count amount.
    if (offset_count < 0) {
      //	look back from m_conlines[0]
      if ((m_bufline + offset_count - n_conlines) < 0)
        offset_count = -(m_bufline - n_conlines);

      m_bufline = m_bufline + offset_count;

      if (offset_count < 0) {
        mprintf(0, "bufline=%d\n", m_bufline);
      }

      while (offset_count < 0) {
        offset_count++;
        for (i = n_conlines - 1; i > 0; i--)
          m_conlines[i] = m_conlines[i - 1];

        // go back until hit previous newline of beginning of buffer.
        for (lineptr = m_conlines[0] - 1; lineptr != m_buffer && lineptr[-1] != '\n'; lineptr--)
          ;
        m_conlines[0] = lineptr;
      }
    } else if (offset_count > 0) {
      // look forward from m_conlines[n_conlines-1]
      if ((m_bufline + offset_count) > m_numlines)
        offset_count = m_numlines - m_bufline;

      m_bufline = m_bufline + offset_count;

      if (offset_count > 0) {
        mprintf(0, "bufline=%d\n", m_bufline);
      }

      while (offset_count > 0) {
        offset_count--;