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  1. // network.cpp
  2.  
  3. #include "common.h"
  4.  
  5.  
  6. // handy definitions
  7. #define REACH_NEXT_FIELD_ELSE(field,action) \
  8. { \
  9.    while (*(field) && !iswspace (*(field))) (field)++; if (*(field) == 0) action; \
  10.    while (*(field) && iswspace (*(field))) (field)++; if (*(field) == 0) action; \
  11. }
  12. #define LOCATE_REPLY_END_FROM_START(end,start) \
  13. { \
  14.    (end) = wcschr ((start), L'\n'); \
  15.    while (((end) != NULL) && ((end)[1] == L'\\')) (end) = wcschr (&(end)[1], L'\n'); /* find the first line feed that is NOT followed by a backslash */ \
  16.    if ((end) != NULL) (end)++; /* skip it */ \
  17.    else (end) = (start) + wcslen (start); \
  18. }
  19. #define ERASE_FROM_TO(beginning,end) \
  20. { \
  21.    while ((((end) != NULL) && ((beginning) < (end))) || (*(beginning) != 0)) \
  22.       *(beginning) = L' ', (beginning)++; /* replace all the area with spaces */ \
  23. }
  24. #define IS_FIELD_PRESENT(field_var,string) \
  25.    (((field_var) = wcsstr (player->recvbuffer, (string))) != NULL) /* this text is present */
  26. #define IS_FIELD_PRESENT_AT_BEGINNING_OF_LINE(field_var,string) \
  27.    ((((field_var) = wcsstr (player->recvbuffer, (string))) != NULL) /* this text is present... */ \
  28.     && (ReachBeginningOfCurrentLine (player->recvbuffer, (field_var)) == (field_var))) /* ... at the beginning of a line */
  29.  
  30.  
  31.  
  32. // prototypes of local functions
  33. static void ReadNickname (wchar_t *nickname, size_t nickname_size, wchar_t *from_string);
  34. static void ReadGamename (wchar_t *gamename, size_t gamename_size, wchar_t *from_string);
  35. static void ReadSpannedLine (wchar_t *outstring, size_t outstring_size, wchar_t *multiline_string);
  36.  
  37.  
  38. void EvaluateServerReply_MOTD (player_t *player)
  39. {
  40.    // this function parses a network reply and evaluates it, deciding what to do
  41.  
  42.    // is the MOTD already filled ?
  43.    if (server_motd[0] != 0)
  44.       return; // if so, this reply can't be a MOTD so just return
  45.  
  46.    // read all received text as part of the MOTD
  47.    wcscpy_s (server_motd, WCHAR_SIZEOF (server_motd), player->recvbuffer);
  48.  
  49.    // do we want the MOTD to be displayed ?
  50.    if (options.network.want_servermessages && options.network.want_motdonconnect)
  51.       Window_MOTD (); // display MOTD window if required
  52.  
  53.    Player_SendBuffer_Add (player, 1000, L"style 12\n"); // set the style 12 (computer-friendly board display)
  54.    Player_SendBuffer_Add (player, 1000, L"who\n"); // send the players update request
  55.    Player_SendBuffer_Add (player, 1000, L"sought all\n"); // send the sought games update request
  56.    if (options.network.want_publicchat)
  57.       Player_SendBuffer_Add (player, 1000, L"inchannel\n"); // send the chatter channels update request
  58.  
  59.    return; // finished evaluating the MOTD
  60. }
  61.  
  62.  
  63. void EvaluateServerReply_Announcement (player_t *player)
  64. {
  65.    // this function parses a network reply and evaluates it, deciding what to do
  66.  
  67.    // Announcement format:
  68.    //RECEIVED:[
  69.    //
  70.    //    **ANNOUNCEMENT** from relay: FICS is relaying the 11th Delhi International
  71.    //\   Open Category A 2013 - Round 3, the 24th Villa de Roquetas International
  72.    //\   Open 2013 - Round 8 and the 18th Bosnjaci International Open 2013 - Round
  73.    //\   5. To find more about Relay type "tell relay help"
  74.    //]
  75.  
  76.    static wchar_t announcement_text[1024];
  77.  
  78.    wchar_t *announcement_start;
  79.    wchar_t *announcement_end;
  80.    wchar_t *field_start;
  81.  
  82.    // are both of the possible announcement headers NOT present ?
  83.    if (!IS_FIELD_PRESENT (announcement_start, L"\n\n    **ANNOUNCEMENT** from ")
  84.        && !IS_FIELD_PRESENT (announcement_start, L"\n\n    **UNREG ANNOUNCEMENT** from "))
  85.       return; // if so, this reply can't be an announcement notification so just return
  86.  
  87.    // this reply is indeed an announcement ; find where it ends
  88.    LOCATE_REPLY_END_FROM_START (announcement_end, announcement_start + 2);
  89.  
  90.    // are we concerned about server messages ?
  91.    if (options.network.want_servermessages)
  92.    {
  93.       field_start = wcsstr (announcement_start, L": "); // reach the first colon+space, that's where the announcement starts
  94.       if (field_start != NULL)
  95.       {
  96.          field_start += 2; // skip colon and space
  97.          ReadSpannedLine (announcement_text, WCHAR_SIZEOF (announcement_text), field_start); // now format the announcement text well
  98.          Scene_AddAnnouncement (&the_scene, announcement_text); // and put it in place
  99.       }
  100.    }
  101.  
  102.    // now erase the announcement from the recvbuffer, so that it cannot be misinterpreted by further parsing
  103.    ERASE_FROM_TO (announcement_start, announcement_end);
  104.  
  105.    return; // finished evaluating this announcement
  106. }
  107.  
  108.  
  109. void EvaluateServerReply_ChannelMessage (player_t *player)
  110. {
  111.    // this function parses a network reply and evaluates it, deciding what to do
  112.  
  113.    static wchar_t channelmessage_text[1024];
  114.  
  115.    wchar_t nickname[32];
  116.    wchar_t channelname[64];
  117.    unsigned long rgbx_color;
  118.    wchar_t *channelmessage_start;
  119.    wchar_t *channelmessage_end;
  120.    wchar_t *field_start;
  121.    wchar_t *field_stop;
  122.    int channel_index;
  123.    int channel_number;
  124.  
  125.    // is the discriminatives bit for a channel message NOT present ?
  126.    if (!IS_FIELD_PRESENT (field_stop, L"): "))
  127.       return; // if so, this reply can't be a channel message so just return
  128.  
  129.    // reach beginning of current line
  130.    channelmessage_start = ReachBeginningOfCurrentLine (player->recvbuffer, field_stop);
  131.  
  132.    // locate the first space in line (i.e. where the message text is supposed to start)
  133.    field_start = wcschr (channelmessage_start, L' ');
  134.    if (field_start != NULL)
  135.       field_start++; // skip it
  136.  
  137.    // is the first space BEFORE the discirminative bit ?
  138.    if (field_start < field_stop)
  139.       return; // if so, this reply can't be a channel message so just return
  140.  
  141.    while ((field_stop > player->recvbuffer) && (*field_stop != L'('))
  142.       field_stop--; // parse the string backwards to find the channel index
  143.    if (*field_stop != L'(')
  144.       return; // drop bogus replies
  145.    channel_number = _wtoi (&field_stop[1]); // read channel number
  146.    if (channel_number == 0)
  147.       return; // if what's between the parentheses is not a number, this reply can't be a channel message so just return
  148.  
  149.    // this reply is indeed a channel message ; find where it ends
  150.    LOCATE_REPLY_END_FROM_START (channelmessage_end, channelmessage_start);
  151.  
  152.    // are we concerned about channel messages ?
  153.    if (options.network.want_publicchat)
  154.    {
  155.       ReadNickname (nickname, WCHAR_SIZEOF (nickname), channelmessage_start); // get the nickname
  156.       ReadSpannedLine (channelmessage_text, WCHAR_SIZEOF (channelmessage_text), field_start); // get the message
  157.  
  158.       channel_number = _wtoi (&field_stop[1]); // and read channel number
  159.       for (channel_index = 0; channel_index < chatterchannel_count; channel_index++)
  160.          if (chatterchannels[channel_index].id == channel_number)
  161.          {
  162.             if (chatterchannels[channel_index].theme[0] != 0)
  163.             {
  164.                wcscpy_s (channelname, WCHAR_SIZEOF (channelname), chatterchannels[channel_index].theme);
  165.                rgbx_color = chatterchannels[channel_index].color;
  166.             }
  167.             break; // break as soon as we find the channel's name and copy it if it exists
  168.          }
  169.       if (channelname[0] == 0)
  170.       {
  171.          swprintf_s (channelname, WCHAR_SIZEOF (channelname), L"%s %d", LOCALIZE (L"ChatterChannels_ColumnChannelNumber"), channel_number); // if it hasn't been filled, use the number
  172.          rgbx_color = RGBA_TO_RGBACOLOR (17, 181, 205, 0); // default channel color
  173.       }
  174.  
  175.       // add CC reply
  176.       Scene_AddCCReply (&the_scene, nickname, channelname, rgbx_color, channelmessage_text);
  177.    }
  178.  
  179.    // now erase the channel message from the recvbuffer, so that it cannot be misinterpreted by further parsing
  180.    ERASE_FROM_TO (channelmessage_start, channelmessage_end);
  181.  
  182.    return; // finished evaluating this channel message
  183. }
  184.  
  185.  
  186. void EvaluateServerReply_PrivateMessage (player_t *player)
  187. {
  188.    // this function parses a network reply and evaluates it, deciding what to do
  189.  
  190.    static wchar_t privatemessage_text[16384];
  191.  
  192.    wchar_t nickname[32];
  193.    wchar_t *privatemessage_start;
  194.    wchar_t *privatemessage_end;
  195.    wchar_t *field_start;
  196.    wchar_t *first_space;
  197.    int player_index;
  198.  
  199.    // is the private message discriminative bit NOT present ?
  200.    // private messages have " tells you: " just after the first space
  201.    if (!IS_FIELD_PRESENT (field_start, L" tells you: "))
  202.       return; // if so, this reply can't be a private message so just return
  203.  
  204.    // look up for the last line feed and the first space of the line
  205.    privatemessage_start = ReachBeginningOfCurrentLine (player->recvbuffer, field_start);
  206.    first_space = wcschr (privatemessage_start, L' ');
  207.  
  208.    // is the first space BEFORE the discirminative bit ?
  209.    if ((first_space != NULL) && (first_space < field_start))
  210.       return; // if so, this reply can't be a channel message so just return
  211.  
  212.    // this reply is indeed a private message ; find where it ends
  213.    LOCATE_REPLY_END_FROM_START (privatemessage_end, privatemessage_start + 2);
  214.  
  215.    ReadNickname (nickname, WCHAR_SIZEOF (nickname), privatemessage_start); // get username
  216.  
  217.    // is it NOT RoboAdmin OR do we care about server messages ?
  218.    if ((_wcsicmp (L"ROBOadmin", nickname) != 0) || options.network.want_servermessages)
  219.    {
  220.       // see if this nickname exists in the list of connected players ; if not, refresh list
  221.       for (player_index = 0; player_index < onlineplayer_count; player_index++)
  222.          if (wcscmp (nickname, onlineplayers[player_index].nickname) == 0)
  223.             break; // break as soon as we find it
  224.  
  225.       // have we NOT found it ?
  226.       if (player_index == onlineplayer_count)
  227.          Player_SendBuffer_Add (player, 1000, L"who\n"); // if so, request a players list refresh
  228.  
  229.       field_start += 12; // skip string break and reach the next colon, that's where the PM starts
  230.       ReadSpannedLine (privatemessage_text, WCHAR_SIZEOF (privatemessage_text), field_start); // now format the PM text well
  231.  
  232.       // find or create our interlocutor structure and append the chat text in it
  233.       Interlocutor_Chat (Interlocutor_FindOrCreate (nickname), nickname, false, privatemessage_text);
  234.    }
  235.  
  236.    // now erase the private message from the recvbuffer, so that it cannot be misinterpreted by further parsing
  237.    ERASE_FROM_TO (privatemessage_start, privatemessage_end);
  238.  
  239.    return; // finished evaluating this private message
  240. }
  241.  
  242.  
  243. void EvaluateServerReply_Finger (player_t *player)
  244. {
  245.    // this function parses a network reply and evaluates it, deciding what to do
  246.  
  247.    wchar_t line_buffer[256];
  248.    wchar_t month_str[5];
  249.    wchar_t dayhrminsec[8];
  250.    wchar_t nickname[32];
  251.    gamestylerating_t gs;
  252.    playercard_t *playercard;
  253.    player_t *local_player;
  254.    wchar_t *finger_start;
  255.    wchar_t *finger_end;
  256.    wchar_t *field_start;
  257.    wchar_t *fingerdata_start;
  258.    wchar_t *string_pointer;
  259.    int onlineplayer_index;
  260.    int days;
  261.    int hours;
  262.    int minutes;
  263.    int number;
  264.  
  265.    // is it a NEGATIVE finger reply ? "'gue$tpm' is not a valid handle."
  266.    if (IS_FIELD_PRESENT (field_start, L"' is not a valid handle."))
  267.    {
  268.       field_start = ReachBeginningOfCurrentLine (player->recvbuffer, field_start); // look up for the last line feed
  269.       if (field_start[0] == L'\'') // first character must be an apostrophe
  270.       {
  271.          ReadNickname (nickname, WCHAR_SIZEOF (nickname), &field_start[1]); // read username
  272.  
  273.          // test again with the complete finger reply header. Are we SURE it is a finger reply ?
  274.          if (wcscmp (&field_start[1 + wcslen (nickname)], L"' is not a valid handle.") == 0)
  275.          {
  276.             // find or create our player card structure
  277.             playercard = PlayerCard_FindOrCreate (nickname);
  278.             playercard->doesnt_exist = true; // mark it as non-existing
  279.             playercard->update_dialog = true; // and tell the dialog to update itself
  280.  
  281.             return; // finished evaluating this finger reply
  282.          }
  283.       }
  284.    }
  285.  
  286.    // is it a NEGATIVE finger reply ? "Ambiguous name guestp:"
  287.    if (IS_FIELD_PRESENT_AT_BEGINNING_OF_LINE (field_start, L"Ambiguous name "))
  288.    {
  289.       ReadNickname (nickname, WCHAR_SIZEOF (nickname), &field_start[15]); // read username
  290.  
  291.       // find or create our player card structure
  292.       playercard = PlayerCard_FindOrCreate (nickname);
  293.       playercard->doesnt_exist = true; // mark it as non-existing
  294.       playercard->update_dialog = true; // and tell the dialog to update itself
  295.  
  296.       return; // finished evaluating this finger reply
  297.    }
  298.  
  299.    // is it a NEGATIVE finger reply ? "There is no player matching the name guestpm."
  300.    if (IS_FIELD_PRESENT_AT_BEGINNING_OF_LINE (field_start, L"There is no player matching the name "))
  301.    {
  302.       ReadNickname (nickname, WCHAR_SIZEOF (nickname), &field_start[37]); // read username
  303.  
  304.       // find or create our player card structure
  305.       playercard = PlayerCard_FindOrCreate (nickname);
  306.       playercard->doesnt_exist = true; // mark it as non-existing
  307.       playercard->update_dialog = true; // and tell the dialog to update itself
  308.  
  309.       return; // finished evaluating this finger reply
  310.    }
  311.  
  312.    // is it a POSITIVE finger reply ? "Finger of guestpm:"
  313.    if (IS_FIELD_PRESENT_AT_BEGINNING_OF_LINE (field_start, L"Finger of "))
  314.    {
  315.       ReadNickname (nickname, WCHAR_SIZEOF (nickname), &field_start[10]); // get username
  316.  
  317.       // find or create our player card structure
  318.       playercard = PlayerCard_FindOrCreate (nickname);
  319.       playercard->got_reply = true; // remember it has actual data
  320.  
  321.       // when we have it, update username
  322.       wcscpy_s (playercard->nickname, WCHAR_SIZEOF (playercard->nickname), nickname);
  323.  
  324.       // find local player and see whether this player card is ours
  325.       local_player = Player_FindByType (PLAYER_HUMAN);
  326.       if ((local_player != NULL) && (_wcsicmp (nickname, local_player->name) == 0))
  327.          playercard->is_own = true; // remember this player card is ours
  328.  
  329.       ///////////////////////////////////////////////////////////////////////
  330.       // Finger: parse the connection data (On for: n days n hours n minutes)
  331.  
  332.       // reach the next double line-break, that's where connection data starts
  333.       fingerdata_start = wcsstr (field_start, L"\n\n");
  334.       if (fingerdata_start == NULL)
  335.          return; // nothing in finger reply ; reply evaluated
  336.  
  337.       fingerdata_start += 2; // skip them
  338.       wcsgets (line_buffer, WCHAR_SIZEOF (line_buffer), fingerdata_start); // copy that line into a buffer for easy parsing
  339.  
  340.       // is the player currently online ?
  341.       if (wcsncmp (line_buffer, L"On for: ", 8) == 0)
  342.       {
  343.          field_start = &line_buffer[8]; // skip the "On for: " text
  344.  
  345.          // according to the data presentation, read and convert in the right form
  346.          if (swscanf_s (field_start, L"%d %*s %d %*s %d %*s Idle: %d %s", &days, &hours, &minutes, &number, dayhrminsec, WCHAR_SIZEOF (dayhrminsec)) == 5)
  347.          {
  348.             playercard->minutes_online = (days * 60 * 24) + (hours * 60) + minutes; // days, hours, minutes
  349.             playercard->seconds_idle = number * (dayhrminsec[0] == L'd' ? 60 * 60 * 24 : (dayhrminsec[0] == L'h' ? 60 * 60 : (dayhrminsec[0] == L'm' ? 60 : 1)));
  350.          }
  351.          else if (swscanf_s (field_start, L"%d %*s %d %*s Idle: %d %s", &hours, &minutes, &number, dayhrminsec, WCHAR_SIZEOF (dayhrminsec)) == 4)
  352.          {
  353.             playercard->minutes_online = (hours * 60) + minutes; // hours, minutes
  354.             playercard->seconds_idle = number * (dayhrminsec[0] == L'd' ? 60 * 60 * 24 : (dayhrminsec[0] == L'h' ? 60 * 60 : (dayhrminsec[0] == L'm' ? 60 : 1)));
  355.          }
  356.          else if (swscanf_s (field_start, L"%*d secs Idle: %d %s", &number, dayhrminsec, WCHAR_SIZEOF (dayhrminsec)) == 2)
  357.          {
  358.             playercard->minutes_online = 1; // less than one minute, round to 1
  359.             playercard->seconds_idle = number * (dayhrminsec[0] == L'd' ? 60 * 60 * 24 : (dayhrminsec[0] == L'h' ? 60 * 60 : (dayhrminsec[0] == L'm' ? 60 : 1)));
  360.          }
  361.          else if (swscanf_s (field_start, L"%d %*s Idle: %d %s", &minutes, &number, dayhrminsec, WCHAR_SIZEOF (dayhrminsec)) == 3)
  362.          {
  363.             playercard->minutes_online = minutes; // just minutes
  364.             playercard->seconds_idle = number * (dayhrminsec[0] == L'd' ? 60 * 60 * 24 : (dayhrminsec[0] == L'h' ? 60 * 60 : (dayhrminsec[0] == L'm' ? 60 : 1)));
  365.          }
  366.  
  367.          playercard->update_dialog = true; // remember to update dialog
  368.       }
  369.  
  370.       // else has player already disconnected ?
  371.       else if (wcsncmp (line_buffer, L"Last disconnected: ", 19) == 0)
  372.       {
  373.          field_start = &line_buffer[19]; // skip the "Last disconnected: " text
  374.  
  375.          // read and convert the data in the right form
  376.          if (swscanf_s (field_start, L"%*s %s %d, %*d:%*d %*s %d", month_str, WCHAR_SIZEOF (month_str), &playercard->disconnection_day, &playercard->disconnection_year) == 3)
  377.             playercard->disconnection_month = MonthStringToNumber (month_str); // convert month from string to number
  378.  
  379.          playercard->update_dialog = true; // remember to update dialog
  380.       }
  381.  
  382.       // else player has never connected
  383.       else
  384.       {
  385.          playercard->disconnection_day = 0; // 0 everywhere means the player has never connected
  386.          playercard->disconnection_month = 0;
  387.          playercard->disconnection_year = 0;
  388.  
  389.          playercard->update_dialog = true; // remember to update dialog
  390.       }
  391.  
  392.       ////////////////////////////////////////////////////////////
  393.       // Finger: parse the status data (playing game N:aaa vs bbb)
  394.  
  395.       // see if this player is currently playing a game
  396.       field_start = wcsstr (fingerdata_start, L"\n(playing game ");
  397.       if (field_start != NULL)
  398.       {
  399.          field_start += 15; // skip the "\n(playing game " substring
  400.  
  401.          // update player activity in opponents list
  402.          for (onlineplayer_index = 0; onlineplayer_index < onlineplayer_count; onlineplayer_index++)
  403.             if (wcscmp (onlineplayers[onlineplayer_index].nickname, playercard->nickname) == 0)
  404.             {
  405.                // if this player is NOT involved in a tournament...
  406.                if (onlineplayers[onlineplayer_index].handlestatus != HANDLESTATUS_INTOURNAMENT)
  407.                {
  408.                   if (playercard->seconds_idle < 5 * 60)
  409.                      onlineplayers[onlineplayer_index].handlestatus = HANDLESTATUS_INGAME; // update status (playing)
  410.                   else
  411.                      onlineplayers[onlineplayer_index].handlestatus = HANDLESTATUS_INACTIVEORBUSY; // update status (idle)
  412.                }
  413.                break; // stop searching as soon as player is found
  414.             }
  415.  
  416.          // scan the game number and name
  417.          swscanf_s (field_start, L"%d: %[^)]", &playercard->game_played, playercard->game_name, WCHAR_SIZEOF (playercard->game_name));
  418.          playercard->update_dialog = true; // remember to update dialog
  419.       }
  420.  
  421.       // see if this player is currently playing a game
  422.       field_start = wcsstr (fingerdata_start, L"\n(examining game ");
  423.       if (field_start != NULL)
  424.       {
  425.          field_start += 17; // skip the "\n(examining game " substring
  426.  
  427.          // update player activity in opponents list
  428.          for (onlineplayer_index = 0; onlineplayer_index < onlineplayer_count; onlineplayer_index++)
  429.             if (wcscmp (onlineplayers[onlineplayer_index].nickname, playercard->nickname) == 0)
  430.             {
  431.                // if this player is NOT involved in a tournament...
  432.                if (onlineplayers[onlineplayer_index].handlestatus != HANDLESTATUS_INTOURNAMENT)
  433.                {
  434.                   if (playercards->seconds_idle < 5 * 60)
  435.                      onlineplayers[onlineplayer_index].handlestatus = HANDLESTATUS_EXAMININGAGAME; // update status (studying)
  436.                   else
  437.                      onlineplayers[onlineplayer_index].handlestatus = HANDLESTATUS_INACTIVEORBUSY; // update status (idle)
  438.                }
  439.                break; // stop searching as soon as player is found
  440.             }
  441.  
  442.          // scan the game number and name
  443.          swscanf_s (field_start, L"%d: %[^)]", &playercard->game_played, playercard->game_name, WCHAR_SIZEOF (playercard->game_name));
  444.          playercard->update_dialog = true; // remember to update dialog
  445.       }
  446.  
  447.       //////////////////////////////////////////
  448.       // Finger: parse the game statistics array
  449.  
  450.       // see if this player has game statistics, find it and jump to the first line
  451.       field_start = wcsstr (fingerdata_start, L"          rating     RD      win    loss    draw   total   best\n");
  452.       if (field_start != NULL)
  453.       {
  454.          field_start += 64; // skip the rating table headers and its carriage return
  455.  
  456.          // game statistics start here. Read line per line...
  457.          string_pointer = field_start; // start at the beginning of the line
  458.          while ((string_pointer = wcsgets (line_buffer, WCHAR_SIZEOF (line_buffer), string_pointer)) != NULL)
  459.          {
  460.             if (line_buffer[0] == 0)
  461.                continue; // skip empty lines
  462.  
  463.             memset (&gs, 0, sizeof (gs)); // reset all statistics we're about to read
  464.  
  465.             // does it look like a valid game statistics line ?
  466.             if ((swscanf_s (line_buffer, L"%s %d %f %d %d %d %d", gs.name, WCHAR_SIZEOF (gs.name), &gs.rating, &gs.rd, &gs.win_count, &gs.loss_count, &gs.draw_count, &gs.total_matches) == 7)
  467.                 || (swscanf_s (line_buffer, L"%s ---- %f %d %d %d %d", gs.name, WCHAR_SIZEOF (gs.name), &gs.rd, &gs.win_count, &gs.loss_count, &gs.draw_count, &gs.total_matches) == 6))
  468.             {
  469.                // reallocate space to hold one game style rating more in this player card
  470.                playercard->gamestyleratings = (gamestylerating_t *) SAFE_realloc (playercard->gamestyleratings, playercard->gamestylerating_count, playercard->gamestylerating_count + 1, sizeof (gamestylerating_t), false);
  471.                memcpy (&playercard->gamestyleratings[playercard->gamestylerating_count], &gs, sizeof (gamestylerating_t)); // copy data
  472.                playercard->gamestylerating_count++; // we know now one game style rating more for this player card
  473.             }
  474.          }
  475.  
  476.          playercard->update_dialog = true; // remember to update dialog
  477.       }
  478.  
  479.       //////////////////////////////////////
  480.       // Finger: parse the personal messages
  481.  
  482.       // see if this player has personal data, find it and jump to the first line
  483.       field_start = wcsstr (fingerdata_start, L"\n\n 1:");
  484.       if (field_start != NULL)
  485.       {
  486.          field_start += 2; // skip the two carriage returns
  487.          finger_start = field_start;
  488.  
  489.          // personal data starts here. Read line per line...
  490.          string_pointer = field_start; // start at the beginning of the line
  491.          while ((string_pointer = wcsgets (line_buffer, WCHAR_SIZEOF (line_buffer), string_pointer)) != NULL)
  492.          {
  493.             if (line_buffer[0] == 0)
  494.                continue; // skip empty lines
  495.  
  496.             // does it look like a valid personal finger data line ?
  497.             if ((wcslen (line_buffer) > 4) && (wcsncmp (&line_buffer[2], L": ", 2) == 0))
  498.                PlayerCard_AppendPersonalData (playercard, &line_buffer[4]); // if so, append it to player's personal data
  499.             else if (wcsncmp (line_buffer, L"\\   ", 3) == 0)
  500.             {
  501.                if (playercard->fingertext_length > 1)
  502.                {
  503.                   playercard->fingertext[playercard->fingertext_length - 1] = 0; // chop off the last carriage return in finger text
  504.                   playercard->fingertext_length--; // UGLY: now size no longer reflects allocated space
  505.                }
  506.                PlayerCard_AppendPersonalData (playercard, &line_buffer[3]); // ...and append it to player's personal data
  507.             }
  508.          }
  509.  
  510.          // now erase that text from the recvbuffer, so that it cannot be misinterpreted by further parsing
  511.          LOCATE_REPLY_END_FROM_START (finger_end, finger_start);
  512.          ERASE_FROM_TO (finger_start, finger_end);
  513.  
  514.          playercard->update_dialog = true; // remember to update dialog
  515.       }
  516.  
  517.       return; // finished evaluating this finger reply
  518.    }
  519.  
  520.    return; // this was not a reply we could be concerned about
  521. }
  522.  
  523.  
  524. void EvaluateServerReply_Seek (player_t *player)
  525. {
  526.    // this function parses a network reply and evaluates it, deciding what to do
  527.  
  528.    wchar_t *field_start;
  529.  
  530.    // are the two bits of the seek notification sentence not present ?
  531.    if (!IS_FIELD_PRESENT (field_start, L") seeking ") || !IS_FIELD_PRESENT (field_start, L"\" to respond)"))
  532.       return; // if so, this reply can't be a seek notification so just return
  533.  
  534.    // only refresh the sought games list if we're displaying it
  535.    if (IsWindow (hSoughtWnd) && (lastsought_time + 5.0f < current_time))
  536.       Player_SendBuffer_Add (player, 1000, L"sought all\n"); // send the sought games update request
  537.  
  538.    return; // finished evaluating this seek notification
  539. }
  540.  
  541.  
  542. void EvaluateServerReply_Challenge (player_t *player)
  543. {
  544.    // this function parses a network reply and evaluates it, deciding what to do
  545.  
  546.    challenge_t chal;
  547.    wchar_t *field_start;
  548.  
  549.    // is the challenge line header NOT present ?
  550.    if (!IS_FIELD_PRESENT_AT_BEGINNING_OF_LINE (field_start, L"Challenge: "))
  551.       return; // if so, this reply can't be a challenge notification so just return
  552.  
  553.    // challenges can appear as
  554.    // Challenge: IOEO (1370) pmbaty (----) unrated blitz 2 12.
  555.    // Challenge: IOEO (1370) [black] pmbaty (----) unrated blitz 2 12.
  556.  
  557.    field_start += 11; // skip the "Challenge: " substring
  558.    ReadNickname (chal.challenger, WCHAR_SIZEOF (chal.challenger), field_start); // read challenger nickname
  559.    REACH_NEXT_FIELD_ELSE (field_start, return);
  560.    if (*field_start == L'(')
  561.       field_start++; // skip the leading parenthesis
  562.    if ((*field_start != L'-') && (*field_start != L'+'))
  563.       chal.challenger_level = _wtoi (field_start); // read player rating
  564.    else
  565.       chal.challenger_level = 0;
  566.    REACH_NEXT_FIELD_ELSE (field_start, return);
  567.    if (_wcsnicmp (field_start, L"[black]", 7) == 0)
  568.    {
  569.       chal.color = COLOR_BLACK; // opponent wants to play black
  570.       REACH_NEXT_FIELD_ELSE (field_start, return);
  571.    }
  572.    else if (_wcsnicmp (field_start, L"[white]", 7) == 0)
  573.    {
  574.       chal.color = COLOR_WHITE; // opponent wants to play white
  575.       REACH_NEXT_FIELD_ELSE (field_start, return);
  576.    }
  577.    else
  578.       chal.color = COLOR_UNSPECIFIED; // opponent has no preference over which color he wants to play
  579.    REACH_NEXT_FIELD_ELSE (field_start, return); // skip our name
  580.    REACH_NEXT_FIELD_ELSE (field_start, return); // skip our rating  
  581.    chal.is_rated = (*field_start == L'r' ? true : false); // read whether it is rated or not
  582.    REACH_NEXT_FIELD_ELSE (field_start, return);
  583.    ReadGamename (chal.game_type, WCHAR_SIZEOF (chal.game_type), field_start); // read game type
  584.    REACH_NEXT_FIELD_ELSE (field_start, return);
  585.    chal.initial_time = (float) _wtoi (field_start); // read initial time
  586.    REACH_NEXT_FIELD_ELSE (field_start, return);
  587.    chal.increment = (float) _wtoi (field_start); // read increment
  588.  
  589.    // is this variant unsupported ?
  590.    if ((_wcsicmp (chal.game_type, L"Untimed") != 0) && (_wcsicmp (chal.game_type, L"Standard") != 0)
  591.        && (_wcsicmp (chal.game_type, L"Blitz") != 0) && (_wcsicmp (chal.game_type, L"Lightning") != 0))
  592.       Player_SendBuffer_Add (player, 1000, L"decline %s\n", chal.challenger); // automatically decline all unsupported games
  593.    else
  594.    {
  595.       // supported variant. Display a message box for the user to choose whether to accept or decline.
  596.  
  597.       // request a player list update before displaying the dialog box
  598.       if (lastonlineplayers_time + 5.0f < current_time)
  599.          Player_SendBuffer_Add (player, 1000, L"who\n");
  600.  
  601.       // print a notification in this player's chat window
  602.       Interlocutor_Notify (Interlocutor_FindOrCreate (chal.challenger), LOCALIZE (L"Chat_InvitationReceived"), chal.challenger);
  603.  
  604.       // find or create our challenge structure and update its data
  605.       Challenge_UpdateData (Challenge_FindOrCreate (chal.challenger), &chal);
  606.    }
  607.  
  608.    return; // finished evaluating this challenge notification
  609. }
  610.  
  611.  
  612. void EvaluateServerReply_ChallengeAccepted (player_t *player)
  613. {
  614.    // this function parses a network reply and evaluates it, deciding what to do
  615.  
  616.    wchar_t nickname[32];
  617.    wchar_t *line_start;
  618.    wchar_t *field_start;
  619.    interlocutor_t *interlocutor;
  620.    int player_index;
  621.  
  622.    // is the challenge accepted notification discriminative bit NOT present ?
  623.    if (!IS_FIELD_PRESENT (field_start, L" accepts the match offer."))
  624.       return; // if so, this reply can't be a challenge reply notification so just return
  625.  
  626.    line_start = ReachBeginningOfCurrentLine (player->recvbuffer, field_start); // look up for the last line feed
  627.    ReadNickname (nickname, WCHAR_SIZEOF (nickname), line_start); // get username
  628.  
  629.    // see if this nickname exists in the list of connected players ; if not, refresh list
  630.    for (player_index = 0; player_index < onlineplayer_count; player_index++)
  631.       if (wcscmp (nickname, onlineplayers[player_index].nickname) == 0)
  632.          break; // break as soon as we find it
  633.  
  634.    // have we NOT found it ?
  635.    if (player_index == onlineplayer_count)
  636.       Player_SendBuffer_Add (player, 1000, L"who\n"); // if so, request a players list refresh
  637.  
  638.    // send a notification to this player's chat window
  639.    interlocutor = Interlocutor_FindOrCreate (nickname);
  640.    Interlocutor_Notify (interlocutor, LOCALIZE (L"Chat_InvitationAcceptedByOther"), nickname);
  641.    if (IsWindow (interlocutor->hWnd))
  642.       ShowWindow (interlocutor->hWnd, SW_MINIMIZE); // minimize chat window immediately
  643.  
  644.    return; // finished evaluating this challenge reply notification
  645. }
  646.  
  647.  
  648. void EvaluateServerReply_ChallengeDeclined (player_t *player)
  649. {
  650.    // this function parses a network reply and evaluates it, deciding what to do
  651.  
  652.    wchar_t nickname[32];
  653.    wchar_t *line_start;
  654.    wchar_t *field_start;
  655.    int player_index;
  656.  
  657.    // is the challenge declined notification discriminative bit NOT present ?
  658.    if (!IS_FIELD_PRESENT (field_start, L" declines the match offer."))
  659.       return; // if so, this reply can't be a challenge reply notification so just return
  660.  
  661.    line_start = ReachBeginningOfCurrentLine (player->recvbuffer, field_start); // look up for the last line feed
  662.    ReadNickname (nickname, WCHAR_SIZEOF (nickname), line_start); // get username
  663.  
  664.    // see if this nickname exists in the list of connected players ; if not, refresh list
  665.    for (player_index = 0; player_index < onlineplayer_count; player_index++)
  666.       if (wcscmp (nickname, onlineplayers[player_index].nickname) == 0)
  667.          break; // break as soon as we find it
  668.  
  669.    // have we NOT found it ?
  670.    if (player_index == onlineplayer_count)
  671.       Player_SendBuffer_Add (player, 1000, L"who\n"); // if so, request a players list refresh
  672.  
  673.    // send a notification to this player's chat window
  674.    Interlocutor_Notify (Interlocutor_FindOrCreate (nickname), LOCALIZE (L"Chat_InvitationDeclinedByOther"), nickname);
  675.  
  676.    return; // finished evaluating this challenge reply notification
  677. }
  678.  
  679.  
  680. void EvaluateServerReply_Takeback (player_t *player)
  681. {
  682.    // this function parses a network reply and evaluates it, deciding what to do
  683.  
  684.    wchar_t *field_start;
  685.    wchar_t *field_stop;
  686.    int howmany_halfmoves;
  687.  
  688.    // is the challenge declined notification discriminative bit NOT present ?
  689.    if (!IS_FIELD_PRESENT (field_start, L" would like to take back ") || !IS_FIELD_PRESENT (field_stop, L" half move(s)"))
  690.       return; // if so, this reply can't be a challenge reply notification so just return
  691.  
  692.    // read the numbre of half moves the opponent reclaims
  693.    swscanf_s (field_start, L" would like to take back %d ", &howmany_halfmoves);
  694.  
  695.    // send a notification to the local player's chat window
  696.    Interlocutor_Notify (Interlocutor_FindOrCreate (player->name), LOCALIZE (L"Chat_TakebackRequestReceived"), player->name, howmany_halfmoves);
  697.    DialogBox_Takeback (howmany_halfmoves); // and fire up a modal dialog box to ask confirmation to the local player
  698.  
  699.    return; // finished evaluating this challenge reply notification
  700. }
  701.  
  702.  
  703. void EvaluateServerReply_TakebackDeclinedByOther (player_t *player)
  704. {
  705.    // this function parses a network reply and evaluates it, deciding what to do
  706.  
  707.    wchar_t *field_start;
  708.  
  709.    // is the takeback declined notification discriminative bit NOT present ?
  710.    if (!IS_FIELD_PRESENT (field_start, L" declines the takeback request."))
  711.       return; // if so, this reply can't be a takeback reply notification so just return
  712.  
  713.    // send a notification to the local player's chat window
  714.    Interlocutor_Notify (Interlocutor_FindOrCreate (player->name), LOCALIZE (L"Chat_TakebackRefused"), player->name);
  715.  
  716.    return; // finished evaluating this challenge reply notification
  717. }
  718.  
  719.  
  720. void EvaluateServerReply_TakebackDeclinedByYou (player_t *player)
  721. {
  722.    // this function parses a network reply and evaluates it, deciding what to do
  723.  
  724.    wchar_t *field_start;
  725.  
  726.    // is the takeback declined notification discriminative bit NOT present ?
  727.    if (!IS_FIELD_PRESENT_AT_BEGINNING_OF_LINE (field_start, L"You decline the takeback request from "))
  728.       return; // if so, this reply can't be a takeback reply notification so just return
  729.  
  730.    // send a notification to the local player's chat window
  731.    Interlocutor_Notify (Interlocutor_FindOrCreate (player->name), LOCALIZE (L"Chat_TakebackRefused"), player->name);
  732.  
  733.    return; // finished evaluating this challenge reply notification
  734. }
  735.  
  736.  
  737. void EvaluateServerReply_PlayNotAllowed (player_t *player)
  738. {
  739.    // this function parses a network reply and evaluates it, deciding what to do
  740.  
  741.    wchar_t *field_start;
  742.  
  743.    // is the play reply notification discriminative bit NOT present ?
  744.    if (!IS_FIELD_PRESENT_AT_BEGINNING_OF_LINE (field_start, L"Only registered players can play rated games."))
  745.       return; // if so, this reply can't be a play reply notification so just return
  746.  
  747.    // display a message box for the player to know that his opponent refuses to play
  748.    messagebox.hWndParent = (IsWindow (hSoughtWnd) ? hSoughtWnd : hMainWnd);
  749.    wcscpy_s (messagebox.title, WCHAR_SIZEOF (messagebox.title), LOCALIZE (L"PlayReply_ServerReply"));
  750.    swprintf_s (messagebox.text, WCHAR_SIZEOF (messagebox.text), LOCALIZE (L"PlayReply_OnlyRegisteredCanPlayRated"));
  751.    messagebox.flags = MB_ICONINFORMATION | MB_OK;
  752.    DialogBox_Message (&messagebox); // display a modeless error message box
  753.  
  754.    return; // finished evaluating this play reply notification
  755. }
  756.  
  757.  
  758. void EvaluateServerReply_PlayUnexistent (player_t *player)
  759. {
  760.    // this function parses a network reply and evaluates it, deciding what to do
  761.  
  762.    wchar_t *field_start;
  763.  
  764.    // is the play reply notification discriminative bit NOT present ?
  765.    if (!IS_FIELD_PRESENT_AT_BEGINNING_OF_LINE (field_start, L"That seek is not available."))
  766.       return; // if so, this reply can't be a play reply so just return
  767.  
  768.    // display a message box for the player to know that his opponent refuses to play
  769.    messagebox.hWndParent = (IsWindow (hSoughtWnd) ? hSoughtWnd : hMainWnd);
  770.    wcscpy_s (messagebox.title, WCHAR_SIZEOF (messagebox.title), LOCALIZE (L"PlayReply_ServerReply"));
  771.    swprintf_s (messagebox.text, WCHAR_SIZEOF (messagebox.text), LOCALIZE (L"PlayReply_UnexistentSeek"));
  772.    messagebox.flags = MB_ICONINFORMATION | MB_OK;
  773.    DialogBox_Message (&messagebox); // display a modeless error message box
  774.  
  775.    return; // finished evaluating this play reply notification
  776. }
  777.  
  778.  
  779. void EvaluateServerReply_PlayWrongRating (player_t *player)
  780. {
  781.    // this function parses a network reply and evaluates it, deciding what to do
  782.  
  783.    wchar_t *field_start;
  784.  
  785.    // is the play reply notification discriminative bit NOT present ?
  786.    if (!IS_FIELD_PRESENT_AT_BEGINNING_OF_LINE (field_start, L"Your rating does not qualify for this seek."))
  787.       return; // if so, this reply can't be a play reply so just return
  788.  
  789.    // display a message box for the player to know that his opponent refuses to play
  790.    messagebox.hWndParent = (IsWindow (hSoughtWnd) ? hSoughtWnd : hMainWnd);
  791.    wcscpy_s (messagebox.title, WCHAR_SIZEOF (messagebox.title), LOCALIZE (L"PlayReply_ServerReply"));
  792.    swprintf_s (messagebox.text, WCHAR_SIZEOF (messagebox.text), LOCALIZE (L"PlayReply_WrongRating"));
  793.    messagebox.flags = MB_ICONINFORMATION | MB_OK;
  794.    DialogBox_Message (&messagebox); // display a modeless error message box
  795.  
  796.    return; // finished evaluating this play reply notification
  797. }
  798.  
  799.  
  800. void EvaluateServerReply_ChannelsAndMembers (player_t *player)
  801. {
  802.    // this function parses a network reply and evaluates it, deciding what to do
  803.  
  804.    chatterchannel_t cc;
  805.    wchar_t *field_start;
  806.    wchar_t *field_stop;
  807.    wchar_t *string_pointer;
  808.    wchar_t *big_buffer;
  809.    player_t *local_player;
  810.    int previouslyselected_channelid;
  811.    int naturallanguagechannel_index;
  812.    int chatterchannel_index;
  813.    int cctheme_length;
  814.    int char_index;
  815.  
  816.    // is the channels and members header bit NOT present ?
  817.    if (!IS_FIELD_PRESENT_AT_BEGINNING_OF_LINE (field_start, L"Channel "))
  818.       return; // if so, this reply can't be a channels and members list so just return
  819.  
  820.    local_player = Player_FindByType (PLAYER_HUMAN); // get a pointer to the human player
  821.  
  822.    // is a chatter channel selected ?
  823.    if (selected_chatterchannel != NULL)
  824.       previouslyselected_channelid = selected_chatterchannel->id; // save its ID
  825.    else
  826.       previouslyselected_channelid = -1; // -1 will instruct us to select a default chatter channel
  827.  
  828.    // for each chatter channel we know already...
  829.    for (chatterchannel_index = 0; chatterchannel_index < chatterchannel_count; chatterchannel_index++)
  830.    {
  831.       SAFE_free ((void **) &chatterchannels[chatterchannel_index].members); // for each channel, free its members array
  832.       chatterchannels[chatterchannel_index].member_count = 0;
  833.    }
  834.    SAFE_free ((void **) &chatterchannels); // free the chatter channel list we know
  835.    chatterchannel_count = 0; // reset the chatter channel count
  836.    naturallanguagechannel_index = -1; // reset the natural language channel index
  837.  
  838.    // linearize the string
  839.    string_pointer = field_start;
  840.    while (string_pointer[1] != 0)
  841.    {
  842.       if ((string_pointer[0] == L'\n') && (string_pointer[1] == L'\\'))
  843.          string_pointer[0] = string_pointer[1] = L' '; // replace every newline followed by a backslash by two spaces
  844.       string_pointer++;
  845.    }
  846.  
  847.    // mallocate space for a big buffer
  848.    big_buffer = (wchar_t *) SAFE_malloc (1024 * 1024, sizeof (wchar_t), false);
  849.  
  850.    // read line per line
  851.    string_pointer = ReachBeginningOfCurrentLine (player->recvbuffer, field_start); // start at the first character
  852.    while ((string_pointer = wcsgets (big_buffer, 1024 * 1024, string_pointer)) != NULL)
  853.    {
  854.       if (big_buffer[0] == 0)
  855.          break; // if it's an empty line, then the channel list is finished
  856.  
  857.       // now parse the chatter channel data
  858.       field_start = big_buffer;
  859.       memset (&cc, 0, sizeof (cc));
  860.  
  861.       REACH_NEXT_FIELD_ELSE (field_start, continue);
  862.       cc.id = _wtoi (field_start); // read chatter channel id
  863.  
  864.       REACH_NEXT_FIELD_ELSE (field_start, continue);
  865.       if (*field_start == L'"')
  866.       {
  867.          field_start++; // skip the quote
  868.          field_stop = field_start;
  869.          while (*field_stop && (*field_stop != L'"'))
  870.             field_stop++; // reach the next quote
  871.          if (*field_stop == 0)
  872.             continue; // discard bogus lines
  873.          *field_stop = 0; // break the string here
  874.          wcscpy_s (cc.theme, WCHAR_SIZEOF (cc.theme), field_start); // copy theme
  875.          cctheme_length = wcslen (cc.theme);
  876.          for (char_index = 0; char_index < cctheme_length; char_index++)
  877.             if (cc.theme[char_index] == L'_')
  878.                cc.theme[char_index] = L' '; // convert underscores to spaces
  879.          if (_wcsicmp (cc.theme, languages[language_id].name) == 0)
  880.             naturallanguagechannel_index = chatterchannel_count; // if this channel is the natural language one, remember it
  881.          field_start = field_stop + 1; // and continue reading the string
  882.          REACH_NEXT_FIELD_ELSE (field_start, continue);
  883.       }
  884.  
  885.       // determine the channel color according to channel ID
  886.       srand (1000 + cc.id);
  887.       cc.color = RGBA_TO_RGBACOLOR (rand () % 256, rand () % 256, rand () % 256, 0xff);
  888.  
  889.       // now read the channel members
  890.       cc.members = NULL;
  891.       cc.member_count = 0;
  892.       while (*field_start != 0)
  893.       {
  894.          cc.members = (chatterchannelmember_t *) SAFE_realloc (cc.members, cc.member_count, cc.member_count + 1, sizeof (chatterchannelmember_t), false);
  895.          if (*field_start == '{')
  896.          {
  897.             ReadNickname (cc.members[cc.member_count].nickname, WCHAR_SIZEOF (cc.members[cc.member_count].nickname), &field_start[1]);
  898.             cc.members[cc.member_count].is_silenced = true; // this player plays in silence
  899.          }
  900.          else
  901.          {
  902.             ReadNickname (cc.members[cc.member_count].nickname, WCHAR_SIZEOF (cc.members[cc.member_count].nickname), field_start);
  903.             cc.members[cc.member_count].is_silenced = false; // this player allows us to talk to him
  904.          }
  905.          if (wcscmp (cc.members[cc.member_count].nickname, local_player->name) == 0)
  906.             cc.is_open = true; // if we are on this channel, mark this channel as open
  907.          cc.member_count++; // reallocate, read player nickname and increase chatter channel members array size
  908.          REACH_NEXT_FIELD_ELSE (field_start, continue); // and advance one player more
  909.       }
  910.  
  911.       // all parsing was OK, reallocate chatter channels list to have one channel more
  912.       chatterchannels = (chatterchannel_t *) SAFE_realloc (chatterchannels, chatterchannel_count, chatterchannel_count + 1, sizeof (chatterchannel_t), true);
  913.       memcpy (&chatterchannels[chatterchannel_count], &cc, sizeof (chatterchannel_t)); // now save data
  914.       chatterchannel_count++; // we know now one sought game more
  915.    }
  916.  
  917.    // free the big buffer space we used
  918.    SAFE_free ((void **) &big_buffer);
  919.  
  920.    // now that the chatter channels are read, find again the one that was previously selected
  921.  
  922.    // if no chatter channel is selected yet, and we have a natural language channel exists and this channel is not open yet...
  923.    if ((previouslyselected_channelid == -1) && (naturallanguagechannel_index != -1) && !chatterchannels[naturallanguagechannel_index].is_open)
  924.       Player_SendBuffer_Add (player, 1000, L"+channel %d\n", chatterchannels[naturallanguagechannel_index].id); // open this channel
  925.  
  926.    // cycle through all the chatter channels we know...
  927.    for (chatterchannel_index = 0; chatterchannel_index < chatterchannel_count; chatterchannel_index++)
  928.       if ((previouslyselected_channelid != -1) && (chatterchannels[chatterchannel_index].id == previouslyselected_channelid))
  929.          break; // break as soon as we find it
  930.  
  931.    // have we found none ?
  932.    if (chatterchannel_index == chatterchannel_count)
  933.    {
  934.       // cycle through all the chatter channels we know...
  935.       for (chatterchannel_index = 0; chatterchannel_index < chatterchannel_count; chatterchannel_index++)
  936.          if (chatterchannels[chatterchannel_index].is_open && (wcsistr (chatterchannels[chatterchannel_index].theme, L"chat") != NULL))
  937.             break; // break on the first open general chatter channel we find
  938.  
  939.       // have we found none ?
  940.       if (chatterchannel_index == chatterchannel_count)
  941.          chatterchannel_index = 0; // ultimate fallback, select the first channel
  942.    }
  943.  
  944.    selected_chatterchannel = &chatterchannels[chatterchannel_index]; // in the end, select the channel that was previously selected
  945.  
  946.    chatterchannels_updated = true; // remember chatter channels list is to be updated
  947.    return; // finished evaluating this channel list
  948. }
  949.  
  950.  
  951. void EvaluateServerReply_SoughtList (player_t *player)
  952. {
  953.    // this function parses a network reply and evaluates it, deciding what to do
  954.  
  955.    wchar_t line_buffer[256];
  956.    soughtgame_t sg;
  957.    wchar_t *field_start;
  958.    wchar_t *string_pointer;
  959.  
  960.    // is the sought games footer bit NOT present ?
  961.    if (!IS_FIELD_PRESENT (field_start, L" ads displayed.") && !IS_FIELD_PRESENT (field_start, L" ad displayed."))
  962.       return; // if so, this reply can't be a sought games list so just return
  963.  
  964.    SAFE_free ((void **) &soughtgames); // free the sought games list we know
  965.    soughtgame_count = 0; // reset the sought games count
  966.  
  967.    // now read line per line
  968.    string_pointer = player->recvbuffer; // start at the first character
  969.    while ((string_pointer = wcsgets (line_buffer, sizeof (line_buffer), string_pointer)) != NULL)
  970.    {
  971.       if (line_buffer[0] == L'\n')
  972.          continue; // discard empty lines
  973.       else if ((wcsstr (line_buffer, L" ads displayed.") != NULL) || (wcsstr (line_buffer, L" ad displayed.") != NULL))
  974.          break; // if it's the end of the list, stop reading
  975.  
  976.       // now parse the sought games data
  977.       field_start = line_buffer;
  978.       memset (&sg, 0, sizeof (sg));
  979.  
  980.       while (*field_start && iswspace (*field_start))
  981.          field_start++; // skip leading spaces
  982.       if (*field_start == 0)
  983.          continue; // discard bogus lines
  984.  
  985.       sg.id = _wtoi (field_start); // read sought game id
  986.       REACH_NEXT_FIELD_ELSE (field_start, continue);
  987.       if ((*field_start != L'-') && (*field_start != L'+'))
  988.          sg.rating = _wtoi (field_start); // read player rating
  989.       REACH_NEXT_FIELD_ELSE (field_start, continue);
  990.       ReadNickname (sg.nickname, WCHAR_SIZEOF (sg.nickname), field_start); // read nickname
  991.       REACH_NEXT_FIELD_ELSE (field_start, continue);
  992.       sg.initial_time = (float) _wtof (field_start); // read initial time
  993.       REACH_NEXT_FIELD_ELSE (field_start, continue);
  994.       sg.increment = (float) _wtof (field_start); // read Fischer increment
  995.       REACH_NEXT_FIELD_ELSE (field_start, continue);
  996.       sg.rating_type = (*field_start == L'r' ? GAMERATINGTYPE_SUPPORTEDRATED : GAMERATINGTYPE_SUPPORTEDUNRATED); // read whether it is rated or not
  997.       REACH_NEXT_FIELD_ELSE (field_start, continue);
  998.       ReadGamename (sg.game_type, WCHAR_SIZEOF (sg.game_type), field_start); // read game type
  999.       sg.game_type[0] = towupper (sg.game_type[0]); // capitalize first character
  1000.       REACH_NEXT_FIELD_ELSE (field_start, continue);
  1001.       sg.color = COLOR_UNSPECIFIED; // set unspecified color until told otherwise
  1002.       if (*field_start == L'[')
  1003.       {
  1004.          if (field_start[1] == L'b') sg.color = COLOR_BLACK; // read specified color
  1005.          else if (field_start[1] == L'w') sg.color = COLOR_WHITE;
  1006.          REACH_NEXT_FIELD_ELSE (field_start, continue);
  1007.       }
  1008.       if (swscanf_s (field_start, L"%d-%d", &sg.lowest_accepted, &sg.highest_accepted) != 2)
  1009.          continue; // read minimal and maximal accepted ELO, and discard bogus lines
  1010.  
  1011.       // read whether the game will start automatically and whether the player's filter formula will be checked
  1012.       if (wcsstr (field_start, L" mf") != NULL)
  1013.       {
  1014.          sg.manual_start = true;
  1015.          sg.formula_checked = true;
  1016.       }
  1017.       else if (wcsstr (field_start, L" m") != NULL)
  1018.          sg.manual_start = true;
  1019.       else if (wcsstr (field_start, L" f") != NULL)
  1020.          sg.formula_checked = true;
  1021.  
  1022.       // is this variant unsupported ?
  1023.       if ((wcscmp (sg.game_type, L"Untimed") != 0) && (wcscmp (sg.game_type, L"Standard") != 0)
  1024.             && (wcscmp (sg.game_type, L"Blitz") != 0) && (wcscmp (sg.game_type, L"Lightning") != 0))
  1025.       {
  1026.          sg.rating = 0;
  1027.          sg.initial_time = 0.0f;
  1028.          sg.increment = 0.0f;
  1029.          sg.rating_type = GAMERATINGTYPE_UNSUPPORTED; // if so, clear some values to clean up the display
  1030.          sg.color = COLOR_UNSPECIFIED;
  1031.          sg.lowest_accepted = 0;
  1032.          sg.highest_accepted = 0;
  1033.          sg.manual_start = true;
  1034.          sg.formula_checked = false;
  1035.       }
  1036.  
  1037.       // all parsing was OK, reallocate sought games list to have one sought game more
  1038.       soughtgames = (soughtgame_t *) SAFE_realloc (soughtgames, soughtgame_count, soughtgame_count + 1, sizeof (soughtgame_t), true);
  1039.       memcpy (&soughtgames[soughtgame_count], &sg, sizeof (soughtgame_t)); // now save data
  1040.       soughtgame_count++; // we know now one sought game more
  1041.    }
  1042.  
  1043.    soughtgames_updated = true; // remember sought games display is to be updated
  1044.    lastsought_time = current_time; // remember when we were last updated
  1045.    return; // finished evaluating this sought games list
  1046. }
  1047.  
  1048.  
  1049. void EvaluateServerReply_PlayersList (player_t *player)
  1050. {
  1051.    // this function parses a network reply and evaluates it, deciding what to do
  1052.  
  1053.    wchar_t line_buffer[256];
  1054.    onlineplayer_t olp;
  1055.    wchar_t *field_stop;
  1056.    wchar_t *string_pointer;
  1057.    int buffer_length;
  1058.    int char_index;
  1059.  
  1060.    // is the players list footer bit NOT present ?
  1061.    if (!IS_FIELD_PRESENT (field_stop, L"(*) indicates system administrator."))
  1062.       return; // if so, this reply can't be a players list so just return
  1063.  
  1064.    SAFE_free ((void **) &onlineplayers); // free the online players list we know
  1065.    onlineplayer_count = 0; // reset the players count
  1066.  
  1067.    // format the player list well. We slightly modify recvbuffer here.
  1068.    // for each character in string...
  1069.    buffer_length = wcslen (player->recvbuffer);
  1070.    for (char_index = 0; char_index < buffer_length - 1; char_index++)
  1071.    {
  1072.       // is it a separator (two spaces) ?
  1073.       if ((player->recvbuffer[char_index] == L' ') && (player->recvbuffer[char_index + 1] == L' '))
  1074.       {
  1075.          while (iswspace (player->recvbuffer[char_index]))
  1076.          {
  1077.             player->recvbuffer[char_index] = L'\n'; // replace all spaces by newlines
  1078.             char_index++; // skip all spaces and reach the next non-space character
  1079.          }
  1080.       }
  1081.    }
  1082.  
  1083.    // now read line per line
  1084.    string_pointer = player->recvbuffer; // start at the first character
  1085.    while ((string_pointer = wcsgets (line_buffer, sizeof (line_buffer), string_pointer)) != NULL)
  1086.    {
  1087.       if (line_buffer[0] == L'\n')
  1088.          continue; // discard empty lines
  1089.       else if (wcsstr (line_buffer, L"(*) indicates system administrator.") != NULL)
  1090.          break; // if it's the end of the list, stop parsing
  1091.  
  1092.       // now parse the player data
  1093.  
  1094.       // parse the handle status
  1095.       if (wcschr (line_buffer, L'^') != NULL) olp.handlestatus = HANDLESTATUS_INGAME; // player is in game
  1096.       else if (wcschr (line_buffer, L'~') != NULL) olp.handlestatus = HANDLESTATUS_INSIMULATION; // player is in simulation
  1097.       else if (wcschr (line_buffer, L'&') != NULL) olp.handlestatus = HANDLESTATUS_INTOURNAMENT; // player is in tournament
  1098.       else if (wcschr (line_buffer, L'#') != NULL) olp.handlestatus = HANDLESTATUS_EXAMININGAGAME; // player is examining a game
  1099.       else if (wcschr (line_buffer, L':') != NULL) olp.handlestatus = HANDLESTATUS_NOTOPENFORAMATCH; // player is not open for a match
  1100.       else if (wcschr (line_buffer, L'.') != NULL) olp.handlestatus = HANDLESTATUS_INACTIVEORBUSY; // player is inactive or busy
  1101.       else olp.handlestatus = HANDLESTATUS_AVAILABLE; // player is available
  1102.  
  1103.       // parse the handle codes
  1104.       olp.handlecodes = 0;
  1105.       if (wcsstr (line_buffer, L"(*)") != NULL) olp.handlecodes |= HANDLECODE_ADMINISTRATOR; // player is administrator
  1106.       if (wcsstr (line_buffer, L"(B)") != NULL) olp.handlecodes |= HANDLECODE_BLINDFOLD; // player is blindfold
  1107.       if (wcsstr (line_buffer, L"(C)") != NULL) olp.handlecodes |= HANDLECODE_COMPUTER; // player is a computer
  1108.       if (wcsstr (line_buffer, L"(T)") != NULL) olp.handlecodes |= HANDLECODE_TEAM; // player is several persons
  1109.       if (wcsstr (line_buffer, L"(U)") != NULL) olp.handlecodes |= HANDLECODE_UNREGISTERED; // player is unregistered
  1110.       if (wcsstr (line_buffer, L"(CA)") != NULL) olp.handlecodes |= HANDLECODE_CHESSADVISOR; // player is a chess advisor
  1111.       if (wcsstr (line_buffer, L"(SR)") != NULL) olp.handlecodes |= HANDLECODE_SERVICEREPRESENTATIVE; // player is a service representative
  1112.       if (wcsstr (line_buffer, L"(TD)") != NULL) olp.handlecodes |= HANDLECODE_TOURNAMENTDIRECTOR; // player is a tournament director
  1113.       if (wcsstr (line_buffer, L"(TM)") != NULL) olp.handlecodes |= HANDLECODE_MAMERMANAGER; // player is a mamer manager
  1114.       if (wcsstr (line_buffer, L"(FM)") != NULL) olp.handlecodes |= HANDLECODE_FIDEMASTER; // player is a FIDE master
  1115.       if (wcsstr (line_buffer, L"(IM)") != NULL) olp.handlecodes |= HANDLECODE_FIDEINTERNATIONALMASTER; // player is a FIDE international master
  1116.       if (wcsstr (line_buffer, L"(GM)") != NULL) olp.handlecodes |= HANDLECODE_FIDEGREATMASTER; // player is a FIDE grand master
  1117.       if (wcsstr (line_buffer, L"(WIM)") != NULL) olp.handlecodes |= HANDLECODE_FIDEWOMENSINTERNATIONALMASTER; // player is a FIDE woman international master
  1118.       if (wcsstr (line_buffer, L"(WGM)") != NULL) olp.handlecodes |= HANDLECODE_FIDEWOMENSGREATMASTER; // player is a FIDE woman great master
  1119.  
  1120.       // get to the first non-numeric character
  1121.       buffer_length = wcslen (line_buffer);
  1122.       for (char_index = 0; char_index < buffer_length; char_index++)
  1123.          if (!iswdigit (line_buffer[char_index]) && (line_buffer[char_index] != L'+') && (line_buffer[char_index] != L'-'))
  1124.             break; // break as soon as we find it
  1125.  
  1126.       if (char_index >= buffer_length - 1)
  1127.          continue; // consistency check: this player is bogus
  1128.  
  1129.       // is it a E ? else is it a P ?
  1130.       if (line_buffer[char_index] == L'E') olp.ratingtype = OPPONENTRATINGTYPE_ESTIMATED; // this player's rating is estimated
  1131.       else if (line_buffer[char_index] == L'P') olp.ratingtype = OPPONENTRATINGTYPE_PROVISIONAL; // this player's rating is provisional
  1132.       else olp.ratingtype = OPPONENTRATINGTYPE_DEFAULT; // this player's rating is normal
  1133.  
  1134.       wcscpy_s (olp.nickname, WCHAR_SIZEOF (olp.nickname), &line_buffer[char_index + 1]); // copy nickname
  1135.       if ((field_stop = wcschr (olp.nickname, L'(')) != NULL)
  1136.          *field_stop = 0; // separate nickname from its handle flags
  1137.  
  1138.       // read opponent rating
  1139.       olp.rating = _wtoi (line_buffer); // ++++ (unregistered) and ---- (no rating) will be translated as 0
  1140.  
  1141.       // all parsing was OK, reallocate online players list to have one player more
  1142.       onlineplayers = (onlineplayer_t *) SAFE_realloc (onlineplayers, onlineplayer_count, onlineplayer_count + 1, sizeof (onlineplayer_t), true);
  1143.       memcpy (&onlineplayers[onlineplayer_count], &olp, sizeof (onlineplayer_t)); // now save data
  1144.       onlineplayer_count++; // we know now one player more
  1145.    }
  1146.  
  1147.    onlineplayers_updated = true; // remember online player list is to be updated
  1148.    lastonlineplayers_time = current_time; // remember when we were last updated
  1149.    return; // finished evaluating this players list
  1150. }
  1151.  
  1152.  
  1153. void EvaluateServerReply_GameStarting (player_t *player)
  1154. {
  1155.    // this function parses a network reply and evaluates it, deciding what to do
  1156.  
  1157.    wchar_t white_name[32];
  1158.    wchar_t black_name[32];
  1159.    wchar_t *field_start;
  1160.    player_t *local_player;
  1161.  
  1162.    // is the game starting notification header bit NOT present ?
  1163.    if (!IS_FIELD_PRESENT_AT_BEGINNING_OF_LINE (field_start, L"Creating: "))
  1164.       return; // if so, this reply can't be a game starting notification so just return
  1165.  
  1166.    // read the interesting parameters, namely white player's name (so that we know which side to display)
  1167.    if (swscanf_s (field_start, L"Creating: %s %*s %s %*s %*s %*s %*d %*d", white_name, WCHAR_SIZEOF (white_name), black_name, WCHAR_SIZEOF (black_name)) != 2)
  1168.       Debug_Log (L"===WARNING: unable to parse game starting notification message!===\n%s\n======\n", field_start);
  1169.  
  1170.    local_player = Player_FindByType (PLAYER_HUMAN); // get a pointer to the local player
  1171.  
  1172.    // is local player NOT the white color AND should be, OR is local player white color AND should NOT be ?
  1173.    if (((local_player->color != COLOR_WHITE) && (wcscmp (white_name, local_player->name) == 0))
  1174.        || ((local_player->color == COLOR_WHITE) && (wcscmp (white_name, local_player->name) != 0)))
  1175.    {
  1176.       Debug_Log (L"===Game starting and local player is not white and should be (or is white and should not be), swapping sides===\n");
  1177.       the_board.want_playerswap = true; // swap sides
  1178.    }
  1179.  
  1180.    // display the game starting message notification
  1181.    Scene_SetText (&the_scene.gui.central_text, 50.0f, 50.0f, -1, ALIGN_CENTER, ALIGN_CENTER, ALIGN_CENTER, centermsg_fontindex, RGBA_TO_RGBACOLOR (255, 255, 255, 191),
  1182.                   5.0f, true, L"%s\n%s (%s) %s %s (%s)", LOCALIZE (L"NewGame_Title"), white_name, LOCALIZE (L"Games_White"), LOCALIZE (L"Versus"), black_name, LOCALIZE (L"Games_Black"));
  1183.  
  1184.    // close any possible singleton window
  1185.    if (IsWindow (hChatterChannelsWnd))
  1186.       DestroyWindow (hChatterChannelsWnd);
  1187.    if (IsWindow (hGamesWnd))
  1188.       DestroyWindow (hGamesWnd); // PGN games window (improbable)
  1189.    if (IsWindow (hMOTDWnd))
  1190.       DestroyWindow (hMOTDWnd);
  1191.    if (IsWindow (hOpponentsWnd))
  1192.       DestroyWindow (hOpponentsWnd);
  1193.    if (IsWindow (hSoughtWnd))
  1194.       DestroyWindow (hSoughtWnd);
  1195.  
  1196.    return; // finished evaluating the game starting notification
  1197. }
  1198.  
  1199.  
  1200. void EvaluateServerReply_GameState (player_t *player)
  1201. {
  1202.    // this function parses a network reply and evaluates it, deciding what to do
  1203.  
  1204.    // Format of style12 computer-parseable lines (ICC/FICS):
  1205.    //
  1206.    // <12> rnbqkb-r pppppppp -----n-- -------- ----P--- -------- PPPPKPPP RNBQ-BNR B -1 0 0 1 1 0 7 Newton Einstein 1 2 12 39 39 119 122 2 K/e1-e2 (0:06) Ke2 0
  1207.    //
  1208.    // This string always begins on a new line, and there are always exactly 31 non-empty fields separated by blanks. The fields are:
  1209.    //
  1210.    // * the string "<12>" to identify this line.
  1211.    // * eight fields representing the board position. First one is White's 8th rank (also Black's 1st rank), then White's 7th rank (also Black's 2nd), etc.
  1212.    // * color whose turn it is to move ("B" or "W")
  1213.    // * -1 if the previous move was NOT a double pawn push, otherwise the chess board file  (numbered 0--7 for a--h) in which the double push was made
  1214.    // * can White still castle short? (0=no, 1=yes)
  1215.    // * can White still castle long?
  1216.    // * can Black still castle short?
  1217.    // * can Black still castle long?
  1218.    // * the number of moves made since the last irreversible move (0 if last move was irreversible. If value is >= 100, game can be declared a draw due to the 50 move rule.)
  1219.    // * The game number
  1220.    // * White's name
  1221.    // * Black's name
  1222.    // * my relation to this game:
  1223.    //     -3 isolated position, such as for "ref 3" or the "sposition" command
  1224.    //     -2 I am observing game being examined
  1225.    //      2 I am the examiner of this game
  1226.    //     -1 I am playing, it is my opponent's move
  1227.    //      1 I am playing and it is my move
  1228.    //      0 I am observing a game being played
  1229.    // * initial time (in seconds) of the match
  1230.    // * increment In seconds) of the match
  1231.    // * White material strength
  1232.    // * Black material strength
  1233.    // * White's remaining time
  1234.    // * Black's remaining time
  1235.    // * the number of the move about to be made (standard chess numbering -- White's and Black's first moves are both 1, etc.)
  1236.    // * verbose coordinate notation for the previous move ("none" if there were none) [note this used to be broken for examined games]
  1237.    // * time taken to make previous move "(min:sec)".
  1238.    // * pretty notation for the previous move ("none" if there is none)
  1239.    // * flip field for board orientation: 1 = Black at bottom, 0 = White at bottom.
  1240.    //
  1241.    // In the future, new fields may be added to the end of the data string, so programs should parse from left to right.
  1242.    //
  1243.    // Special information for bughouse games
  1244.    // --------------------------------------
  1245.    // When showing positions from bughouse games, a second line showing piece holding is given, with "<b1>" at the beginning, for example:
  1246.    //   <b1> game 6 white [PNBBB] black [PNB]
  1247.    // Also, when pieces are "passed" during bughouse, a short data string -- not the entire board position -- is sent.  For example:
  1248.    //   <b1> game 52 white [NB] black [N] <- BN
  1249.    // The final two letters indicate the piece that was passed; in the above example, a knight (N) was passed to Black.
  1250.    // A prompt may preceed the <b1> header.
  1251.  
  1252.    wchar_t positions[65];
  1253.    wchar_t move_color_as_string[2];
  1254.    int move_color;
  1255.    int player_color;
  1256.    int pawnrush_column;
  1257.    int can_white_castle_short;
  1258.    int can_white_castle_long;
  1259.    int can_black_castle_short;
  1260.    int can_black_castle_long;
  1261.    int number_of_moves_since_last_irreversible_move;
  1262.    int game_number;
  1263.    wchar_t white_name[32];
  1264.    wchar_t black_name[32];
  1265.    int my_status;
  1266.    int white_remaining_time_in_seconds;
  1267.    int black_remaining_time_in_seconds;
  1268.    int turn_number_1_based;
  1269.    int move_index;
  1270.    wchar_t pretty_movestring[8];
  1271.    boardmove_t move;
  1272.    wchar_t *field_start;
  1273.    int recognized_fields;
  1274.    boardmove_t *last_move;
  1275.  
  1276.    // is it NOT a style12 line reply ?
  1277.    if (!IS_FIELD_PRESENT_AT_BEGINNING_OF_LINE (field_start, L"<12> "))
  1278.       return; // if so, this reply can't be a style12 notification so just return
  1279.  
  1280.    recognized_fields = swscanf_s (field_start, L"<12> " // style12 header
  1281.                                                L"%s %s %s %s %s %s %s %s " // "rnbqkbnr pppppppp -------- -------- -------- -------- PPPPPPPP RNBQKBNR"
  1282.                                                L"%s %d %d %d %d %d %d %d " // "W -1 1 1 1 1 0 2"
  1283.                                                L"%s %s %d %*d %*d %*d %*d " // "guestpmtelnet GuestJXTJ -1 2 12 39 39"
  1284.                                                L"%d %d %d %*s %*s %s %*d", // "120 120 1 none (0:00) none 1 0 0"
  1285.                                                &positions[0 * 8], 9, &positions[1 * 8], 9, &positions[2 * 8], 9, &positions[3 * 8], 9, &positions[4 * 8], 9, &positions[5 * 8], 9, &positions[6 * 8], 9, &positions[7 * 8], 9,
  1286.                                                move_color_as_string, WCHAR_SIZEOF (move_color_as_string), &pawnrush_column, &can_white_castle_short, &can_white_castle_long, &can_black_castle_short, &can_black_castle_long, &number_of_moves_since_last_irreversible_move, &game_number,
  1287.                                                white_name, WCHAR_SIZEOF (white_name), black_name, WCHAR_SIZEOF (black_name), &my_status,
  1288.                                                &white_remaining_time_in_seconds, &black_remaining_time_in_seconds, &turn_number_1_based, pretty_movestring, WCHAR_SIZEOF (pretty_movestring));
  1289.    if (recognized_fields != 23)
  1290.       return; // unparseable style12 reply
  1291.  
  1292.    // remember we are in game and which game it is
  1293.    player->is_in_game = true;
  1294.    player->game_number = game_number;
  1295.  
  1296.    // convert some data into easier formats first. The color which just moved is the opposite of the color to move now
  1297.    move_color = (towupper (move_color_as_string[0]) == L'W' ? COLOR_BLACK : COLOR_WHITE);
  1298.    move_index = (2 * turn_number_1_based) - 2 + (move_color == COLOR_WHITE ? 1 : 0);
  1299.  
  1300.    // save the unquestionable parameters (direct it to the opposite player if the board is going to be swapped)
  1301.    player_color = the_board.want_playerswap ? COLOR_WHITE : COLOR_BLACK;
  1302.    ReadNickname (the_board.players[player_color].name, WCHAR_SIZEOF (the_board.players[player_color].name), black_name);
  1303.    the_board.players[player_color].remaining_seconds = black_remaining_time_in_seconds;
  1304.  
  1305.    player_color = the_board.want_playerswap ? COLOR_BLACK : COLOR_WHITE;
  1306.    ReadNickname (the_board.players[player_color].name, WCHAR_SIZEOF (the_board.players[player_color].name), white_name);
  1307.    the_board.players[player_color].remaining_seconds = white_remaining_time_in_seconds;
  1308.  
  1309.    // is it an initial board position ?
  1310.    if (wcscmp (pretty_movestring, L"none") == 0)
  1311.    {
  1312.       Debug_Log (L"===Setting up board according to chess server's specifications and beginning new game===\n");
  1313.  
  1314.       // set up the board according to what the chess server tells us
  1315.       memset (&move, 0, sizeof (move));
  1316.       Move_SetupFromStyle12 (&move, positions, move_color, pawnrush_column,
  1317.                               (can_white_castle_short != 0), (can_white_castle_long != 0), (can_black_castle_short != 0), (can_black_castle_long != 0), pretty_movestring);
  1318.       Board_Reset (&the_board, move.fen_string);
  1319.    }
  1320.  
  1321.    // else play the move and swap sides
  1322.    else
  1323.    {
  1324.       Debug_Log (L"===Received board status update from chess server===\n");
  1325.  
  1326.       // are we appending a new move ?
  1327.       if (((move_color == player->color) && (move_index == the_board.move_count)) // either a new move by our opponent
  1328.           || ((move_color != player->color) && (move_index == the_board.move_count - 1))) // or a confirmation of a move already played by the local player
  1329.       {
  1330.          Debug_Log (L"===Appending new move %d===\n", move_index);
  1331.  
  1332.          // get a pointer to the previous move
  1333.          last_move = &the_board.moves[the_board.move_count - 1];
  1334.  
  1335.          // is the server reporting the remote player's move ?
  1336.          if (move_color == player->color)
  1337.          {
  1338.             // evaluate the move string
  1339.             wcscpy_s (move.pgntext, WCHAR_SIZEOF (move.pgntext), pretty_movestring);
  1340.             if (!Move_SetupFromSAN (last_move, &move, player->color))
  1341.                Debug_Log (L"===WARNING: unable to interpret server's table state while evaluating its notification of remote player move!===\n%s\n======\n", pretty_movestring);
  1342.  
  1343.             // play the remote opponent's move
  1344.             Board_AppendMove (&the_board, move.source[0], move.source[1], move.target[0], move.target[1], move.promotion_type, NULL);
  1345.  
  1346.             the_board.has_playerchanged = true; // remember players changed
  1347.             animation_endtime = current_time + ANIMATION_DURATION; // play move animation now
  1348.             sound_playtime = current_time + ANIMATION_DURATION - 0.1f; // play sound near the end of animation
  1349.          }
  1350.  
  1351.          // else the server is acknowledging the local player's move
  1352.          else
  1353.          {
  1354.             // evaluate the move string
  1355.             wcscpy_s (last_move->pgntext, WCHAR_SIZEOF (last_move->pgntext), pretty_movestring);
  1356.             if (!Move_SetupFromSAN (&the_board.moves[the_board.move_count - 2], last_move, last_move->color))
  1357.                Debug_Log (L"===WARNING: unable to interpret server's table state while evaluating its reply after local player move!===\n%s\n======\n", pretty_movestring);
  1358.          }
  1359.  
  1360.          // in case a new move was appended, update the last move pointer
  1361.          last_move = &the_board.moves[the_board.move_count - 1];
  1362.       }
  1363.  
  1364.       // else the server must be time-warping the game backwards
  1365.       else
  1366.       {
  1367.          Debug_Log (L"===Backing up to move %d===\n", move_index);
  1368.  
  1369.          last_move = &the_board.moves[move_index]; // get a pointer to the move we're backing up to
  1370.          the_board.move_count = move_index + 1; // update the board's move count
  1371.          if (the_board.viewed_move > the_board.move_count - 1)
  1372.             the_board.viewed_move = the_board.move_count - 1; // and the board's viewed move as well
  1373.  
  1374.          // send a notification to the player's chat window
  1375.          Interlocutor_Notify (Interlocutor_FindOrCreate (player->name), LOCALIZE (L"Chat_TakebackAccepted"));
  1376.       }
  1377.  
  1378.       // make the server set it up correctly
  1379.       Move_SetupFromStyle12 (last_move, positions, move_color, pawnrush_column,
  1380.                               (can_white_castle_short != 0), (can_white_castle_long != 0), (can_black_castle_short != 0), (can_black_castle_long != 0), pretty_movestring);
  1381.    }
  1382.  
  1383.    the_board.game_state = STATE_PLAYING; // remember that a game is currently playing
  1384.    the_board.reevaluate = true; // and reeevaluate the board
  1385.    return; // finished evaluating this style12 notification line
  1386. }
  1387.  
  1388.  
  1389. void EvaluateServerReply_GameResults (player_t *player)
  1390. {
  1391.    // this function parses a network reply and evaluates it, deciding what to do
  1392.  
  1393.    wchar_t *field_start;
  1394.    int game_number;
  1395.  
  1396.    // is the game results notification header bit NOT present ?
  1397.    if (!IS_FIELD_PRESENT_AT_BEGINNING_OF_LINE (field_start, L"{Game "))
  1398.       return; // if so, this reply can't be a game results notification so just return
  1399.  
  1400.    // are we NOT in game yet OR is it a game creation message ?
  1401.    if (!player->is_in_game || (wcsstr (field_start, L") Creating") != NULL))
  1402.       return; // if so, this message is not a game results but a game creation message
  1403.  
  1404.    // verify it's for the game we're playing
  1405.    if (swscanf_s (field_start, L"{Game %d ", &game_number) != 1)
  1406.    {
  1407.       Debug_Log (L"===WARNING: unable to parse game results notification message!===\n%s\n======\n", field_start);
  1408.       return; // on error, drop a warning in the log file and return
  1409.    }
  1410.    if (game_number != player->game_number)
  1411.    {
  1412.       Debug_Log (L"===WARNING: received game results notification message with wrong game number! Ignoring.===\n");
  1413.       return; // on error, drop a warning in the log file and return
  1414.    }
  1415.  
  1416.    ////////////////////////////
  1417.    // interpret the game result
  1418.  
  1419.    // do the white win ?
  1420.    if (wcsstr (field_start, L"} 1-0") != NULL)
  1421.    {
  1422.       // is it a checkmate ?
  1423.       if (wcsstr (field_start, L"checkmate") != NULL)
  1424.       {
  1425.          Debug_Log (L"===Server tells us that black is checkmate: white wins!===\n");
  1426.          the_board.game_state = STATE_WHITEWIN_CHECKMATE; // remember game state
  1427.       }
  1428.  
  1429.       // else it must be a resign, a forfeit or an adjudication
  1430.       else
  1431.       {
  1432.          Debug_Log (L"===Server tells us that black [resigns|forfeits|loses adjudication]: white wins!===\n");
  1433.          the_board.game_state = STATE_WHITEWIN_RESIGNORFORFEIT; // remember game state
  1434.       }
  1435.  
  1436.       // if white player is human, play the victory sound, else, play defeat sound
  1437.       Audio_PlaySound (the_board.players[COLOR_WHITE].type == PLAYER_HUMAN ? SOUNDTYPE_VICTORY : SOUNDTYPE_DEFEAT);
  1438.    }
  1439.  
  1440.    // else do the black win ?
  1441.    else if (wcsstr (field_start, L"} 0-1") != NULL)
  1442.    {
  1443.       // is it a checkmate ?
  1444.       if (wcsstr (field_start, L" checkmate") != NULL)
  1445.       {
  1446.          Debug_Log (L"===Server tells us that white is checkmate: black wins!===\n");
  1447.          the_board.game_state = STATE_BLACKWIN_CHECKMATE; // remember game state
  1448.       }
  1449.  
  1450.       // else it must be a resign, a forfeit or an adjudication
  1451.       else
  1452.       {
  1453.          Debug_Log (L"===Server tells us that white [resigns|forfeits|loses adjudication]: black wins!===\n");
  1454.          the_board.game_state = STATE_BLACKWIN_RESIGNORFORFEIT; // remember game state
  1455.       }
  1456.  
  1457.       // if black player is human, play the victory sound, else, play defeat sound
  1458.       Audio_PlaySound (the_board.players[COLOR_BLACK].type == PLAYER_HUMAN ? SOUNDTYPE_VICTORY : SOUNDTYPE_DEFEAT);
  1459.    }
  1460.  
  1461.    // else is it a draw ?
  1462.    else if (wcsstr (field_start, L"} 1/2-1/2") != NULL)
  1463.    {
  1464.       // is it a stalemate ?
  1465.       if (wcsstr (field_start, L" stalemate") != NULL)
  1466.       {
  1467.          Debug_Log (L"===Server tells us it's a stalemate: game is a draw===\n");
  1468.          the_board.game_state = STATE_DRAW_STALEMATE; // remember game state
  1469.       }
  1470.  
  1471.       // else is it a mutual agreement ?
  1472.       else if (wcsstr (field_start, L" mutual agreement") != NULL)
  1473.       {
  1474.          Debug_Log (L"===Server tells us it's a draw by mutual agreement: game is a draw===\n");
  1475.          the_board.game_state = STATE_DRAW_AGREEMENT; // remember game state
  1476.       }
  1477.  
  1478.       // else it's another reason
  1479.       else
  1480.       {
  1481.          Debug_Log (L"===Server tells us it's a draw for another reason: game is a draw===\n");
  1482.          the_board.game_state = STATE_DRAW_OTHER; // remember game state
  1483.       }
  1484.  
  1485.       // play a defeat sound
  1486.       Audio_PlaySound (SOUNDTYPE_DEFEAT);
  1487.    }
  1488.  
  1489.    // else is it an adjournment ?
  1490.    else if (wcsstr (field_start, L"} *") != NULL)
  1491.    {
  1492.       Debug_Log (L"===Server tells the game is adjourned: game adjourned===\n");
  1493.       the_board.game_state = STATE_ADJOURNED; // remember game state
  1494.    }
  1495.  
  1496.    // else we can't interpret the game state
  1497.    else
  1498.    {
  1499.       Debug_Log (L"===WARNING: unable to interpret game results notification message!===\n%s\n======\n", field_start);
  1500.       return; // on error, drop a warning in the log file and return
  1501.    }
  1502.  
  1503.    // remember player is no longer in game
  1504.    player->is_in_game = false;
  1505.    player->game_number = 0;
  1506.  
  1507.    // reevaluate the board and display the endgame dialog box
  1508.    the_board.reevaluate = true;
  1509.    DialogBox_EndGame ();
  1510.  
  1511.    return; // finished evaluating the game results notification
  1512. }
  1513.  
  1514.  
  1515. static void ReadNickname (wchar_t *nickname, size_t nickname_size, wchar_t *from_string)
  1516. {
  1517.    // helper function to read a nickname and strip it from its eventual flags
  1518.  
  1519.    unsigned int char_index;
  1520.  
  1521.    // as long as we don't read a forbidden character...
  1522.    for (char_index = 0; char_index < nickname_size; char_index++)
  1523.       if (iswalpha (from_string[char_index]))
  1524.          nickname[char_index] = from_string[char_index]; // copy nickname one character after the other
  1525.       else
  1526.          break; // else stop copying immediately
  1527.  
  1528.    if (char_index < nickname_size)
  1529.       nickname[char_index] = 0; // finish the string ourselves
  1530.    else
  1531.       nickname[nickname_size - 1] = 0; // truncate it if neeeded
  1532.  
  1533.    return; // finished
  1534. }
  1535.  
  1536.  
  1537. static void ReadGamename (wchar_t *gamename, size_t gamename_size, wchar_t *from_string)
  1538. {
  1539.    // helper function to read a game name
  1540.  
  1541.    unsigned int char_index;
  1542.  
  1543.    // as long as we don't read a forbidden character...
  1544.    for (char_index = 0; char_index < gamename_size; char_index++)
  1545.       if (iswgraph (from_string[char_index]))
  1546.          gamename[char_index] = from_string[char_index]; // copy game name one character after the other
  1547.       else
  1548.          break; // else stop copying immediately
  1549.  
  1550.    if (char_index < gamename_size)
  1551.       gamename[char_index] = 0; // finish the string ourselves
  1552.    else
  1553.       gamename[gamename_size - 1] = 0; // truncate it if neeeded
  1554.  
  1555.    return; // finished
  1556. }
  1557.  
  1558.  
  1559. static void ReadSpannedLine (wchar_t *outstring, size_t outstring_size, wchar_t *multiline_string)
  1560. {
  1561.    // this function linearizes a multiline string and takes out any special formatting character of it
  1562.  
  1563.    int length;
  1564.    int read_index;
  1565.    unsigned int write_index;
  1566.  
  1567.    length = wcslen (multiline_string); // get text length first
  1568.  
  1569.    // for each character in string...
  1570.    write_index = 0;
  1571.    for (read_index = 0; read_index < length; read_index++)
  1572.    {
  1573.       if (wcsncmp (&multiline_string[read_index], L"\\   ", 4) == 0)
  1574.          read_index += 4; // if it's a new line indentation, skip it
  1575.  
  1576.       // are we NOT reading a newline followed by a backslash AND is it still room in the output string ?
  1577.       if (!((read_index < length - 1) && (multiline_string[read_index] == L'\n') && (multiline_string[read_index + 1] == L'\\'))
  1578.           && (write_index < outstring_size - 1))
  1579.       {
  1580.          if (multiline_string[read_index] == L'\n')
  1581.             break; // if it's a newline (without backslash following), stop reading
  1582.  
  1583.          outstring[write_index] = multiline_string[read_index]; // else copy this character to output string
  1584.          write_index++; // and advance in string
  1585.       }
  1586.    }
  1587.  
  1588.    outstring[write_index] = 0; // finish string
  1589.    return; // and return
  1590. }
  1591.