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  1. // main.cpp
  2.  
  3. #define DEFINE_GLOBALS
  4. #include "common.h"
  5.  
  6.  
  7. // prototypes of locally used functions
  8. static void MainLoop_FindCurrentViewer (void);
  9. static void MainLoop_EvaluateGameState (void);
  10.  
  11.  
  12. int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, char *lpCmdLine, int nCmdShow)
  13. {
  14.    // the entry point for any Windows program
  15.  
  16.    WNDCLASSEX wc;
  17.    MENUINFO menu_info;
  18.    MSG msg;
  19.    HBITMAP hSplashBmp;
  20.    BITMAP splash_bmp;
  21.    HDC hdc;
  22.    RECT rect;
  23.    PAINTSTRUCT ps;
  24.    HBITMAP hbmTmp;
  25.    HDC hdcMem;
  26.    HKEY hRegistryKey;
  27.    INPUT mousemove_input;
  28.    float previous_time;
  29.    float screensaverwatchdog_feedtime;
  30.    int frame_count;
  31.    int array_index;
  32.    char *endptr;
  33.    wchar_t app_pathname[MAX_PATH];
  34.    wchar_t font_pathname[MAX_PATH];
  35.    wchar_t temp_string[MAX_PATH];
  36.    DWORD ascii_buffersize;
  37.  
  38.    // does an InstallerPath registry key exist? if so, it means we've just been installed
  39.    ascii_buffersize = sizeof (temp_string);
  40.    if ((RegOpenKeyEx (HKEY_CURRENT_USER, L"SOFTWARE\\Chess Giants", 0, KEY_READ | KEY_SET_VALUE, &hRegistryKey) == 0)
  41.        && (RegQueryValueEx (hRegistryKey, L"InstallerPath", 0, NULL, (BYTE *) temp_string, &ascii_buffersize) == 0))
  42.    {
  43.       temp_string[ascii_buffersize / sizeof (wchar_t)] = 0; // terminate the string ourselves (strings in the registry MAY have no null terminator)
  44.  
  45.       // delete the installer
  46.       DeleteFile (temp_string);
  47.  
  48.       // delete the registry value and close the registry key
  49.       RegDeleteValue (hRegistryKey, L"InstallerPath");
  50.       RegCloseKey (hRegistryKey);
  51.    }
  52.  
  53.    // save application instance
  54.    hAppInstance = hInstance;
  55.  
  56.    // find module and path names, and *IMPORTANT*, set the current working directory there
  57.    GetModuleFileName (NULL, app_pathname, WCHAR_SIZEOF (app_pathname));
  58.    GetDirectoryPath (app_pathname, app_path);
  59.    SetCurrentDirectoryW (app_path);
  60.  
  61.    // initialize stuff
  62.    is_registered = false;
  63.    terminate_everything = false;
  64.    hMainWnd = NULL;
  65.    hChatterChannelsWnd = NULL;
  66.    hGamesWnd = NULL;
  67.    hMOTDWnd = NULL;
  68.    hOpponentsWnd = NULL;
  69.    hSoughtWnd = NULL;
  70.    is_paused = false; // clear pause status
  71. #ifdef NDEBUG
  72.    want_framerate = false; // release mode, don't display framerate
  73. #else
  74.    want_framerate = true; // display framerate in debug mode
  75. #endif // NDEBUG
  76.    is_dialogbox_about_validated = false;
  77.    is_dialogbox_challenge_validated = false;
  78.    is_dialogbox_changeappearance_validated = false;
  79.    is_dialogbox_comment_validated = false;
  80.    is_dialogbox_endgame_validated = false;
  81.    is_dialogbox_gotomove_validated = false;
  82.    is_dialogbox_renamesides_validated = false;
  83.    is_dialogbox_load_validated = false;
  84.    is_dialogbox_message_validated = false;
  85.    is_dialogbox_newgame_validated = false;
  86.    is_dialogbox_options_validated = false;
  87.    is_dialogbox_pawnpromotion_validated = false;
  88.    is_dialogbox_playercard_validated = false;
  89.    is_dialogbox_playerinfoname_validated = false;
  90.    is_dialogbox_quit_validated = false;
  91.    is_dialogbox_resign_validated = false;
  92.    is_dialogbox_save_validated = false;
  93.    is_dialogbox_saveposition_validated = false;
  94.    is_dialogbox_sendchallenge_validated = false;
  95.    is_dialogbox_sendseek_validated = false;
  96.    is_dialogbox_takeback_validated = false;
  97.    is_window_chat_validated = false;
  98.    is_window_chatterchannels_validated = false;
  99.    is_window_games_validated = false;
  100.    is_window_motd_validated = false;
  101.    is_window_opponents_validated = false;
  102.    is_window_sought_validated = false;
  103.    save_pathname[0] = 0;
  104.    srand ((unsigned int) time (NULL)); // initialize PRNG
  105.    animation_endtime = 0.0f;
  106.    command_ignoretime = 0.0f;
  107.    highlight_endtime = 0.0f;
  108.    previous_time = 0.0f;
  109.    frame_count = 0;
  110.  
  111.    // load the texts and ensure we have at least one display language
  112.    LocalizedTexts_Init ();
  113.    if (language_count < 1)
  114.    {
  115.       MessageBox (NULL, L"Chess Giants was unable to load its data files.\nThe game cannot start.\n\nPlease reinstall this program to fix the problem.", L"Chess Giants", MB_ICONERROR | MB_OK);
  116.       return (-1); // bomb out on error
  117.    }
  118.  
  119.    // read configuration data
  120.    Config_Load ();
  121.  
  122.    // see if the program is registered
  123.    is_registered = IsRegistrationCorrect (options.registration.user_email, options.registration.activation_code);
  124.  
  125.    // is it not ? if so, try to read alternate registration data from the registry
  126.    if (!is_registered && (RegOpenKeyEx (HKEY_CURRENT_USER, L"SOFTWARE\\Chess Giants", 0, KEY_READ, &hRegistryKey) == 0))
  127.    {
  128.       ascii_buffersize = sizeof (options.registration.user_email); // in bytes
  129.       if (RegQueryValueEx (hRegistryKey, L"UserEmail", 0, NULL, (BYTE *) options.registration.user_email, &ascii_buffersize) == 0)
  130.          options.registration.user_email[ascii_buffersize / sizeof (wchar_t)] = 0; // terminate the string ourselves (strings in the registry MAY have no null terminator)
  131.       ascii_buffersize = sizeof (options.registration.activation_code); // in bytes
  132.       if (RegQueryValueEx (hRegistryKey, L"ActivationCode", 0, NULL, (BYTE *) &options.registration.activation_code, &ascii_buffersize) != 0)
  133.          options.registration.activation_code = 0; // if we can't read the activation code DWORD properly, reset it
  134.       RegCloseKey (hRegistryKey); // once we've read the data we were interested in, close the registry key
  135.  
  136.       // now check again if we're registered
  137.       is_registered = IsRegistrationCorrect (options.registration.user_email, options.registration.activation_code);
  138.    }
  139.  
  140.    // uncomment the two lines below to test the registration code
  141.    //DialogBox_Registration ();
  142.    //return (0);
  143.  
  144.    // register the window class, create the window and show it
  145.    memset (&wc, 0, sizeof (wc));
  146.    wc.cbSize = sizeof (wc);
  147.    wc.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS; // double-clicks support
  148.    wc.lpfnWndProc = WindowProc_Main;
  149.    wc.hInstance = hAppInstance;
  150.    wc.hIcon = LoadIcon (hAppInstance, (wchar_t *) ICON_MAIN);
  151.    wc.hCursor = LoadCursor (NULL, IDC_ARROW);
  152.    wc.lpszClassName = PROGRAM_NAME L" WndClass";
  153.    RegisterClassEx (&wc);
  154.    swprintf_s (temp_string, WCHAR_SIZEOF (temp_string), PROGRAM_NAME L"%s", (is_registered ? L"" : LOCALIZE (L"EvaluationMode"))); // build window title
  155.    if (options.want_fullscreen)
  156.       hMainWnd = CreateWindowEx (0, wc.lpszClassName, temp_string, WS_POPUPWINDOW, // temp_string holds window title
  157.                                  0, 0, GetSystemMetrics (SM_CXSCREEN), GetSystemMetrics (SM_CYSCREEN), NULL, NULL, hAppInstance, NULL);
  158.    else
  159.    {
  160.       // in windowed mode, ensure window width and height aren't greater than screen size nor lower than a safe minimum
  161.       if (options.window_width > GetSystemMetrics (SM_CXMAXTRACK))
  162.          options.window_width = GetSystemMetrics (SM_CXMAXTRACK); // check this first in case screen size is reported incorrect
  163.       if (options.window_height > GetSystemMetrics (SM_CYMAXTRACK))
  164.          options.window_height = GetSystemMetrics (SM_CYMAXTRACK);
  165.       if (options.window_width < 640)
  166.          options.window_width = 640; // check this secondly in case screen size is reported incorrect
  167.       if (options.window_height < 480)
  168.          options.window_height = 480;
  169.  
  170.       hMainWnd = CreateWindowEx (0, wc.lpszClassName, temp_string, WS_OVERLAPPEDWINDOW, // temp_string holds window title
  171.                                  GetSystemMetrics (SM_CXSCREEN) / 2 - options.window_width / 2,
  172.                                  GetSystemMetrics (SM_CYSCREEN) / 2 - options.window_height / 2,
  173.                                  options.window_width, options.window_height, NULL, NULL, hAppInstance, NULL);
  174.    }
  175.    ShowWindow (hMainWnd, (options.want_maximized ? SW_SHOWMAXIMIZED : nCmdShow)); // show it maximized if it was closed so
  176.  
  177.    // create the main menu line, and its accelerators
  178.    hMainMenu = NULL;
  179.    hMainAccelerators = NULL;
  180.    CreateOrUpdateApplicationMenu ();
  181.  
  182.    // display the splash screen (uglily first, using GDI functions)
  183.    memset ((void *) &splash_bmp, 0, sizeof (splash_bmp));
  184.    hSplashBmp = W32LoadImage (L"%s/data/splash.bmp", app_path); // load the splash bitmap
  185.    GetObject (hSplashBmp, sizeof (splash_bmp), (void *) &splash_bmp); // get a structure containing its size (among others)
  186.    hdcMem = CreateCompatibleDC (NULL); // create a device context compatible with the screen
  187.    hbmTmp = SelectBitmap (hdcMem, hSplashBmp); // select our bitmap to use in it
  188.    hdc = BeginPaint (hMainWnd, &ps); // begin painting on the main window
  189.    GetClientRect (hMainWnd, &rect);
  190.    StretchBlt (hdc, 0, 0, rect.right, rect.bottom, hdcMem, 0, 0, splash_bmp.bmWidth, splash_bmp.bmHeight, SRCCOPY); // bit blit the bitmap into it
  191.    EndPaint (hMainWnd, &ps); // end painting on the main window
  192.    SelectObject (hdcMem, hbmTmp); // restore the previous selection
  193.    DeleteDC (hdcMem); // and delete the handles to the device context
  194.    DeleteObject (hSplashBmp); // and to the bitmap that we used
  195.  
  196.    // make the menu modeless
  197.    memset (&menu_info, 0, sizeof (menu_info)); // prepare menu info structure
  198.    menu_info.cbSize = sizeof (MENUINFO);
  199.    menu_info.fMask = MIM_STYLE;
  200.    GetMenuInfo (GetMenu (hMainWnd), &menu_info); // get current style
  201.    menu_info.dwStyle |= MNS_MODELESS; // add the "modeless" flag
  202.    SetMenuInfo (GetMenu (hMainWnd), &menu_info); // and send it back
  203.  
  204.    // load status icons, bitmaps and texts
  205.    handlestatus[HANDLESTATUS_AVAILABLE].icon = W32LoadIcon (L"%s/data/icons/available.ico", app_path);
  206.    handlestatus[HANDLESTATUS_AVAILABLE].bitmap = W32LoadImage (L"%s/data/status/available.bmp", app_path);
  207.    handlestatus[HANDLESTATUS_AVAILABLE].text = LOCALIZE (L"Opponents_StatusAvailable");
  208.    handlestatus[HANDLESTATUS_INGAME].icon = W32LoadIcon (L"%s/data/icons/ingame.ico", app_path);
  209.    handlestatus[HANDLESTATUS_INGAME].bitmap = W32LoadImage (L"%s/data/status/ingame.bmp", app_path);
  210.    handlestatus[HANDLESTATUS_INGAME].text = LOCALIZE (L"Opponents_StatusInGame");
  211.    handlestatus[HANDLESTATUS_INSIMULATION].icon = W32LoadIcon (L"%s/data/icons/insimulation.ico", app_path);
  212.    handlestatus[HANDLESTATUS_INSIMULATION].bitmap = W32LoadImage (L"%s/data/status/insimulation.bmp", app_path);
  213.    handlestatus[HANDLESTATUS_INSIMULATION].text = LOCALIZE (L"Opponents_StatusInSimulation");
  214.    handlestatus[HANDLESTATUS_INTOURNAMENT].icon = W32LoadIcon (L"%s/data/icons/intournament.ico", app_path);
  215.    handlestatus[HANDLESTATUS_INTOURNAMENT].bitmap = W32LoadImage (L"%s/data/status/intournament.bmp", app_path);
  216.    handlestatus[HANDLESTATUS_INTOURNAMENT].text = LOCALIZE (L"Opponents_StatusInTournament");
  217.    handlestatus[HANDLESTATUS_EXAMININGAGAME].icon = W32LoadIcon (L"%s/data/icons/examiningagame.ico", app_path);
  218.    handlestatus[HANDLESTATUS_EXAMININGAGAME].bitmap = W32LoadImage (L"%s/data/status/examiningagame.bmp", app_path);
  219.    handlestatus[HANDLESTATUS_EXAMININGAGAME].text = LOCALIZE (L"Opponents_StatusExaminingAGame");
  220.    handlestatus[HANDLESTATUS_NOTOPENFORAMATCH].icon = W32LoadIcon (L"%s/data/icons/notopenforamatch.ico", app_path);
  221.    handlestatus[HANDLESTATUS_NOTOPENFORAMATCH].bitmap = W32LoadImage (L"%s/data/status/notopenforamatch.bmp", app_path);
  222.    handlestatus[HANDLESTATUS_NOTOPENFORAMATCH].text = LOCALIZE (L"Opponents_StatusNotOpenForAMatch");
  223.    handlestatus[HANDLESTATUS_INACTIVEORBUSY].icon = W32LoadIcon (L"%s/data/icons/inactiveorbusy.ico", app_path);
  224.    handlestatus[HANDLESTATUS_INACTIVEORBUSY].bitmap = W32LoadImage (L"%s/data/status/inactiveorbusy.bmp", app_path);
  225.    handlestatus[HANDLESTATUS_INACTIVEORBUSY].text = LOCALIZE (L"Opponents_StatusInactiveOrBusy");
  226.    handlestatus[HANDLESTATUS_OFFLINE].icon = W32LoadIcon (L"%s/data/icons/offline.ico", app_path);
  227.    handlestatus[HANDLESTATUS_OFFLINE].bitmap = W32LoadImage (L"%s/data/status/offline.bmp", app_path);
  228.    handlestatus[HANDLESTATUS_OFFLINE].text = LOCALIZE (L"Opponents_StatusOffline");
  229.  
  230.    // load the system fonts
  231.    hFontChat = CreateFont (17, 0, 0, 0, FW_DONTCARE, false, false, false, ANSI_CHARSET, OUT_DEFAULT_PRECIS,
  232.                            CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH | FF_SWISS, L"Comic Sans MS");
  233.  
  234.    // before any rendering is done, it's a good idea to know what time it is
  235.    current_time = ProcessTime ();
  236.    stoppage_time = 0;
  237.    screensaverwatchdog_feedtime = current_time + 50.0f; // feed screensaver watchdog every 50 seconds
  238.  
  239.    // initialize audio and renderer, and display a cleaner version of the splash screen this time :)
  240.    if (!Audio_Init () || !Render_Init (L"%s/data/splash.bmp", app_path))
  241.       return (-1); // bomb out on error
  242.  
  243.    // load sprites
  244.    larrow_spriteindex = Render_LoadSprite (L"%s/data/sprites/arrow-left.png", app_path);
  245.    rarrow_spriteindex = Render_LoadSprite (L"%s/data/sprites/arrow-right.png", app_path);
  246.    newgamebutton_spriteindex = Render_LoadSprite (L"%s/data/sprites/newgame.png", app_path);
  247.    opengamebutton_spriteindex = Render_LoadSprite (L"%s/data/sprites/opengame.png", app_path);
  248.    chatbutton_spriteindex = Render_LoadSprite (L"%s/data/sprites/chat.png", app_path);
  249.    gamesbutton_spriteindex = Render_LoadSprite (L"%s/data/sprites/games.png", app_path);
  250.    peoplebutton_spriteindex = Render_LoadSprite (L"%s/data/sprites/people.png", app_path);
  251.    sepia_spriteindex = Render_LoadSprite (L"%s/data/sprites/sepia.png", app_path);
  252.    for (array_index = 0; array_index < 12; array_index++)
  253.       spinner_spriteindex[array_index] = Render_LoadSprite (L"%s/data/sprites/spinner-%d.png", app_path, array_index * 30); // spinning wheel
  254.  
  255.    // add our custom fonts to the list of available fonts for the duration of the process
  256.    swprintf_s (font_pathname, WCHAR_SIZEOF (font_pathname), L"%s/data/fonts/papyrus.ttf", app_path);
  257.    AddFontResourceEx (font_pathname, FR_PRIVATE, 0);
  258.    // load rendered fonts
  259.    arrow_fontindex = Render_LoadFont (L"Papyrus", 24, false, false);
  260.    chat_fontindex = Render_LoadFont (L"Papyrus", 32, false, false);
  261.    players_fontindex = Render_LoadFont (L"Papyrus", 40, false, true);
  262.    centermsg_fontindex = Render_LoadFont (L"Papyrus", 54, false, true);
  263.  
  264.    // load themes, initialize a new human vs. human game and setup the scene
  265.    if (!Themes_Init ())
  266.       return (-1); // bomb out on error
  267.    Board_Init (&the_board, PLAYER_HUMAN, PLAYER_HUMAN, FENSTARTUP_STANDARDCHESS);
  268.    Scene_Init (&the_scene, &the_board);
  269.  
  270.    // has a filename been specifed on the command-line AND that file exists ?
  271.    if ((lpCmdLine != NULL) && (lpCmdLine[0] != 0))
  272.    {
  273.       while (*lpCmdLine == '"')
  274.          lpCmdLine++; // skip leading quotes
  275.       if ((endptr = strchr (lpCmdLine, '"')) != NULL)
  276.          *endptr = 0; // break the string at the first ending quote
  277.  
  278.       // is it a file that exists ? (don't use stat() which is broken on WinXP)
  279.       if (_access (lpCmdLine, 0) == 0)
  280.       {
  281.          ConvertToWideChar (load_pathname, WCHAR_SIZEOF (load_pathname), lpCmdLine); // save pathname string
  282.          is_dialogbox_load_validated = true; // and act as if the user just validated a load dialog box
  283.       }
  284. #ifndef NDEBUG
  285.       // else is it a registration info ? if so, parse it
  286.       else if ((strncmp (lpCmdLine, "/r=", 3) == 0) && ((endptr = strchr (&lpCmdLine[3], ',')) != NULL))
  287.       {
  288.          *endptr = 0; // break the string at the separator between user email and activation code
  289.          ConvertToWideChar (temp_string, WCHAR_SIZEOF (temp_string), &lpCmdLine[3]); // read user email
  290.          is_registered = IsRegistrationCorrect (temp_string, atoi (endptr + 1)); // and see whether we're registered or not
  291.       }
  292. #endif // !NDEBUG
  293.    }
  294.  
  295.    // TODO: this + offline statistics
  296.  
  297.    // enter the main loop
  298.    while (!terminate_everything)
  299.    {
  300.       // see what time it is
  301.       current_time = ProcessTime ();
  302.       if (is_paused)
  303.          stoppage_time += (current_time - previous_time); // if we're paused, increase stoppage time
  304.  
  305.       // is it time to feed the screensaver watchdog ? (to prevent it from starting)
  306.       if (screensaverwatchdog_feedtime < current_time)
  307.       {
  308.          mousemove_input.type = INPUT_MOUSE;
  309.          memset (&mousemove_input.mi, 0, sizeof (mousemove_input.mi)); // blank out struct = no move at all :)
  310.          mousemove_input.mi.dwFlags = MOUSEEVENTF_MOVE;
  311.          SendInput (1, &mousemove_input, sizeof (mousemove_input)); // send a fake mouse move input event
  312.  
  313.          screensaverwatchdog_feedtime = current_time + 50.0f; // feed screensaver watchdog again in 50 seconds
  314.       }
  315.  
  316.       // are we in demo mode and is it time to quit ?
  317.       if (!is_registered && (current_time > DEMO_TIMEOUT))
  318.          DestroyWindow (hMainWnd); // if so, send a quit message in order to break the loop
  319.  
  320.       // are we in the middle of an animation or just after it ?
  321.       if (current_time < animation_endtime + 0.5f)
  322.          the_scene.update = true; // always update during animations
  323.       else
  324.          the_scene.update |= Board_Think (&the_board); // make the board (i.e, both players) think
  325.  
  326.       MainLoop_FindCurrentViewer ();  // determine current viewer
  327.  
  328.       // see if we have a message waiting for any window in the current thread and dispatch it
  329.       while (PeekMessage (&msg, NULL, 0, 0, PM_REMOVE))
  330.       {
  331.          // check for accelerator keystrokes from the main window
  332.          if ((msg.hwnd != hMainWnd) || !TranslateAccelerator (hMainWnd, hMainAccelerators, &msg))
  333.          {
  334.             TranslateMessage (&msg); // translate and dispatch all other messages
  335.             DispatchMessage (&msg);
  336.          }
  337.       }
  338.  
  339.       // handle dialog box and window return codes
  340.       if (is_dialogbox_about_validated) DialogBox_About_Validated ();
  341.       if (is_dialogbox_challenge_validated) DialogBox_Challenge_Validated ();
  342.       if (is_dialogbox_changeappearance_validated) DialogBox_ChangeAppearance_Validated ();
  343.       if (is_dialogbox_comment_validated) DialogBox_Comment_Validated ();
  344.       if (is_dialogbox_endgame_validated) DialogBox_EndGame_Validated ();
  345.       if (is_dialogbox_gotomove_validated) DialogBox_GoToMove_Validated ();
  346.       if (is_dialogbox_renamesides_validated) DialogBox_RenameSides_Validated ();
  347.       if (is_dialogbox_load_validated) DialogBox_Load_Validated ();
  348.       if (is_dialogbox_message_validated) DialogBox_Message_Validated ();
  349.       if (is_dialogbox_newgame_validated) DialogBox_NewGame_Validated ();
  350.       if (is_dialogbox_options_validated) DialogBox_Options_Validated ();
  351.       if (is_dialogbox_pawnpromotion_validated) DialogBox_PawnPromotion_Validated ();
  352.       if (is_dialogbox_playercard_validated) DialogBox_PlayerCard_Validated ();
  353.       if (is_dialogbox_playerinfoname_validated) DialogBox_PlayerInfoName_Validated ();
  354.       if (is_dialogbox_quit_validated) DialogBox_Quit_Validated ();
  355.       if (is_dialogbox_resign_validated) DialogBox_Resign_Validated ();
  356.       if (is_dialogbox_save_validated) DialogBox_Save_Validated ();
  357.       if (is_dialogbox_saveposition_validated) DialogBox_SavePosition_Validated ();
  358.       if (is_dialogbox_sendchallenge_validated) DialogBox_SendChallenge_Validated ();
  359.       if (is_dialogbox_sendseek_validated) DialogBox_SendSeek_Validated ();
  360.       if (is_dialogbox_takeback_validated) DialogBox_Takeback_Validated ();
  361.       if (is_window_chat_validated) Window_Chat_Validated ();
  362.       if (is_window_chatterchannels_validated) Window_ChatterChannels_Validated ();
  363.       if (is_window_games_validated) Window_Games_Validated ();
  364.       if (is_window_motd_validated) Window_MOTD_Validated ();
  365.       if (is_window_opponents_validated) Window_Opponents_Validated ();
  366.       if (is_window_sought_validated) Window_Sought_Validated ();
  367.  
  368.       MainLoop_EvaluateGameState (); // evaluate game state
  369.  
  370.       // is the table rotating ?
  371.       if (Player_RotateTable (&the_board.players[current_viewer], current_time - previous_time))
  372.          the_scene.update = true; // if so, update the scene
  373.  
  374.       // are we highlighting something ?
  375.       if (highlight_endtime > current_time)
  376.          the_scene.update = true; // if so, update the scene
  377.  
  378.       // else if we WERE just highlighting something, clear the hovered positions
  379.       else if (highlight_endtime + 0.1f > current_time)
  380.       {
  381.          the_board.hovered_position[0] = -1;
  382.          the_board.hovered_position[1] = -1;
  383.          the_scene.update = true; // and update the scene
  384.       }
  385.  
  386.       // if we want the game clock, update scene every second
  387.       if (options.want_clock && ((int) current_time != (int) previous_time))
  388.          the_scene.update = true;
  389.  
  390.       // if there's something in the central text buffer, update scene too
  391.       if (the_scene.gui.central_text.is_displayed)
  392.          the_scene.update = true;
  393.  
  394.       // if we have a spinning wheel, update scene too
  395.       if (the_scene.gui.want_spinwheel)
  396.          the_scene.update = true;
  397.  
  398.       // is our theme not loaded yet ?
  399.       if (!theme->is_loaded)
  400.          Theme_LoadABitMore (theme); // load a bit more of it
  401.  
  402.       // else do we NOT need to update the scene ?
  403.       else if (!(the_scene.update || want_framerate))
  404.       {
  405.          // cycle through all themes and see if one of them needs to be loaded
  406.          for (array_index = 0; array_index < theme_count; array_index++)
  407.             if (!themes[array_index].is_loaded)
  408.             {
  409.                Theme_LoadABitMore (&themes[array_index]); // load a bit more of this theme
  410.                break; // and stop looping (see you next pass)
  411.             }
  412.       }
  413.  
  414.       // either we need to update the scene, or we want to do it continuously
  415.       else
  416.       {
  417.          Scene_Update (&the_scene, &the_board); // evaluate which parts need to be placed
  418.          Render_RenderFrame (&the_scene); // render a game frame
  419.  
  420.          the_scene.update = false; // scene no longer needs to be updated now
  421.       }
  422.  
  423.       Audio_Think (); // ensure audio is playing
  424.  
  425.       previous_time = current_time; // save previous time
  426.       if (frame_count == 100)
  427.       {
  428.          frame_count = 0; // reset frame count every 100 frames
  429.          Sleep (1); // once every 100 frames, wait a millisecond
  430.       }
  431.       else
  432.          Sleep (0); // else just allow context switching
  433.       frame_count++; // increase the frame count
  434.    }
  435.  
  436.    /////////////////////////////////////////////////////////////////////////
  437.    // at this point, we exited the main loop and we are returning to Windows
  438.  
  439.    // release scene, game, themes and shutdown renderer and audio
  440.    Scene_Shutdown (&the_scene);
  441.    Board_Shutdown (&the_board);
  442.    Themes_Shutdown ();
  443.    Render_Shutdown ();
  444.    Audio_Shutdown ();
  445.  
  446.    // delete the font resources
  447.    DeleteObject (hFontChat);
  448.  
  449.    // delete the bitmap and icon ressources
  450.    for (array_index = 1; array_index < sizeof (handlestatus) / sizeof (handlestatus[0]); array_index++)
  451.    {
  452.       DeleteObject (handlestatus[array_index].bitmap);
  453.       DestroyIcon (handlestatus[array_index].icon);
  454.    }
  455.  
  456.    // unregister window class
  457.    UnregisterClass (wc.lpszClassName, hAppInstance);
  458.  
  459.    // destroy the accelerators table
  460.    if (hMainAccelerators)
  461.       DestroyAcceleratorTable (hMainAccelerators);
  462.    hMainAccelerators = NULL;
  463.  
  464.    // destroy the application menu object
  465.    if (IsMenu (hMainMenu))
  466.       DestroyMenu (hMainMenu);
  467.    hMainMenu = NULL;
  468.  
  469.    // are we not registered yet ?
  470.    if (!is_registered)
  471.       DialogBox_Registration ();
  472.  
  473.    // save configuration data
  474.    Config_Save ();
  475.  
  476.    // unload localized texts
  477.    LocalizedTexts_Shutdown ();
  478.  
  479.    return (0); // and return to Windows.
  480. }
  481.  
  482.  
  483. static void MainLoop_FindCurrentViewer (void)
  484. {
  485.    // helper function that tells who is the current viewer
  486.  
  487.    if ((the_board.players[COLOR_WHITE].type == PLAYER_HUMAN) && (the_board.players[COLOR_BLACK].type == PLAYER_HUMAN))
  488.       current_viewer = Board_ColorToMove (&the_board); // if both players are human, track them both
  489.    else if (the_board.players[COLOR_WHITE].type == PLAYER_HUMAN)
  490.       current_viewer = COLOR_WHITE; // else if only the white is human, track the white
  491.    else if (the_board.players[COLOR_BLACK].type == PLAYER_HUMAN)
  492.       current_viewer = COLOR_BLACK; // else if it's the black, track the black
  493.    else
  494.       current_viewer = COLOR_WHITE; // else no human in game, track just the white
  495.  
  496.    return; // finished, current viewer is known
  497. }
  498.  
  499.  
  500. static void MainLoop_EvaluateGameState (void)
  501. {
  502.    // function to evaluate the game state in the main loop when a part has just moved
  503.  
  504.    static wchar_t window_title[256];
  505.  
  506.    player_t *current_player;
  507.    player_t *opposite_player;
  508.    player_t *network_player;
  509.    boardmove_t *last_move;
  510.    int enabled_value;
  511.    int move_index;
  512.  
  513.    // get current and opposite players, and see if we're online
  514.    current_player = Player_GetCurrent ();
  515.    opposite_player = Player_GetOpposite ();
  516.    network_player = Player_FindByType (PLAYER_INTERNET);
  517.  
  518.    // if the view distance or pitch is lower than the minimum, enable the "new game" and "open game" buttons
  519.    if ((network_player == NULL) && (current_distance == CLOSEUP_VIEW_DISTANCE) && (current_pitch == CLOSEUP_VIEW_PITCH))
  520.    {
  521.       GUIBUTTON_ENABLE (the_scene.gui.newgamebutton);
  522.       GUIBUTTON_ENABLE (the_scene.gui.opengamebutton);
  523.    }
  524.    else
  525.    {
  526.       GUIBUTTON_DISABLE (the_scene.gui.newgamebutton);
  527.       GUIBUTTON_DISABLE (the_scene.gui.opengamebutton);
  528.    }
  529.  
  530.    if (!the_board.reevaluate)
  531.       return; // if the board doesn't need to be reevaluated, don't do anything
  532.  
  533.    // has the game started ?
  534.    if (the_board.move_count > 1)
  535.    {
  536.       // game has started, enable the "save" and "save as" menu options
  537.       EnableMenuItem (GetMenu (hMainWnd), MENUID_GAME_SAVE, MF_ENABLED);
  538.       EnableMenuItem (GetMenu (hMainWnd), MENUID_GAME_SAVEAS, MF_ENABLED);
  539.       EnableMenuItem (GetMenu (hMainWnd), MENUID_GAME_SAVEPOSITIONAS, MF_ENABLED);
  540.  
  541.       // disable the start position setup mode
  542.       EnableMenuItem (GetMenu (hMainWnd), MENUID_GAME_SETUPPOSITION, MF_GRAYED);
  543.  
  544.       // enable the "go to move" menu option
  545.       EnableMenuItem (GetMenu (hMainWnd), MENUID_MOVE_GOTOMOVE, MF_ENABLED);
  546.  
  547.       // are we watching the last move ?
  548.       if (the_board.viewed_move == the_board.move_count - 1)
  549.       {
  550.          // get a quick acccess to the last move
  551.          last_move = &the_board.moves[the_board.move_count - 1];
  552.  
  553.          // if the current player is a human AND its opponent is a computer, allow him to ask us for a hint
  554.          if ((current_player->type == PLAYER_HUMAN) && (opposite_player->type == PLAYER_COMPUTER))
  555.             EnableMenuItem (GetMenu (hMainWnd), MENUID_MOVE_SUGGESTMOVE, MF_ENABLED);
  556.          else
  557.             EnableMenuItem (GetMenu (hMainWnd), MENUID_MOVE_SUGGESTMOVE, MF_GRAYED);
  558.  
  559.          // (if the current player is a human
  560.          //  AND (its opponent is another human AND there's at least one move played)
  561.          //       OR (its opponent is a computer AND there are at least two moves played)
  562.          //       OR (its opponent is a remote player AND we're in game AND there are at least two moves played))
  563.          // OR the current player is a remote player AND we're in game AND there are at least two moves played), allow him to cancel move
  564.          if (((current_player->type == PLAYER_HUMAN)
  565.               && ((opposite_player->type == PLAYER_HUMAN)
  566.                   || ((opposite_player->type == PLAYER_COMPUTER) && (the_board.move_count > 2))
  567.                   || ((opposite_player->type == PLAYER_INTERNET) && (opposite_player->is_in_game) && (the_board.move_count > 2))))
  568.              || ((current_player->type == PLAYER_INTERNET) && (current_player->is_in_game) && (the_board.move_count > 2)))
  569.             EnableMenuItem (GetMenu (hMainWnd), MENUID_MOVE_CANCELLASTMOVE, MF_ENABLED);
  570.          else
  571.             EnableMenuItem (GetMenu (hMainWnd), MENUID_MOVE_CANCELLASTMOVE, MF_GRAYED);
  572.  
  573.          // is the current player in check ? (to play the right sound)
  574.          // read as: was the last move an opponent's move AND did it put us to check ?
  575.          if (last_move->is_check)
  576.          {
  577.             // is it a checkmate ? (checkmate == check + stalemate)
  578.             if (last_move->is_stalemate)
  579.             {
  580.                // display the game over dialog box
  581.                the_board.game_state = (Board_ColorToMove (&the_board) == COLOR_WHITE ? STATE_BLACKWIN_CHECKMATE : STATE_WHITEWIN_CHECKMATE);
  582.                DialogBox_EndGame ();
  583.             }
  584.          }
  585.          else
  586.          {
  587.             // is it a stalemate ?
  588.             if (last_move->is_stalemate)
  589.             {
  590.                // display the game over dialog box
  591.                the_board.game_state = STATE_DRAW_STALEMATE;
  592.                DialogBox_EndGame ();
  593.             }
  594.          }
  595.  
  596.          // have there 50 moves been played each side (i.e, 100 plies) AND is the current player human ?
  597.          if ((the_board.move_count > 100) && (current_player->type == PLAYER_HUMAN))
  598.          {
  599.             // go backwards and see when is the latest move that took an opponent's piece OR the latest pawn move
  600.             for (move_index = the_board.move_count - 1; move_index >= 0; move_index--)
  601.                if (the_board.moves[move_index].has_captured || (the_board.moves[move_index].part == PART_PAWN))
  602.                   break; // stop as soon as we find one
  603.  
  604.             // can the fifty moves draw rule be claimed AND does the current player claims it ?
  605.             if (move_index + 1 + 100 < the_board.move_count)
  606.             {
  607.                // yes. Propose it to the side that's on move
  608. // TODO: non-modal MessageBox (copy dialog_newgame.cpp and use return values)
  609.             }
  610.          }
  611.  
  612.          GUIBUTTON_ENABLE (the_scene.gui.larrow); // enable "back" arrow if it isn't displayed yet
  613.          GUIBUTTON_DISABLE (the_scene.gui.rarrow); // disable "forward" arrow if it's already displayed
  614.  
  615.          if (the_board.game_state == STATE_PLAYING)
  616.             Scene_SetText (&the_scene.gui.arrow_text, 3.3f, 5.0f, -1, ALIGN_CENTER, ALIGN_TOP, ALIGN_CENTER, arrow_fontindex,
  617.                            RGBACOLOR_SETALPHA (options.clock_color, 0x7f), 999999.0f, false, LOCALIZE (is_paused ? L"Paused" : L"Current"));
  618.          else if ((the_board.game_state == STATE_BLACKWIN_CHECKMATE) || (the_board.game_state == STATE_WHITEWIN_CHECKMATE))
  619.             Scene_SetText (&the_scene.gui.arrow_text, 3.3f, 5.0f, -1, ALIGN_CENTER, ALIGN_TOP, ALIGN_CENTER, arrow_fontindex,
  620.                            RGBACOLOR_SETALPHA (options.clock_color, 0x7f), 999999.0f, false, LOCALIZE (L"EndGame_CheckMate"));
  621.          else if ((the_board.game_state == STATE_WHITEWIN_RESIGNORFORFEIT) || (the_board.game_state == STATE_BLACKWIN_RESIGNORFORFEIT))
  622.             Scene_SetText (&the_scene.gui.arrow_text, 3.3f, 5.0f, -1, ALIGN_CENTER, ALIGN_TOP, ALIGN_CENTER, arrow_fontindex,
  623.                            RGBACOLOR_SETALPHA (options.clock_color, 0x7f), 999999.0f, false, LOCALIZE (L"EndGame_Resign"));
  624.          else if (the_board.game_state == STATE_DRAW_STALEMATE)
  625.             Scene_SetText (&the_scene.gui.arrow_text, 3.3f, 5.0f, -1, ALIGN_CENTER, ALIGN_TOP, ALIGN_CENTER, arrow_fontindex,
  626.                            RGBACOLOR_SETALPHA (options.clock_color, 0x7f), 999999.0f, false, LOCALIZE (L"EndGame_StaleMate"));
  627.          else if (the_board.game_state == STATE_DRAW_AGREEMENT)
  628.             Scene_SetText (&the_scene.gui.arrow_text, 3.3f, 5.0f, -1, ALIGN_CENTER, ALIGN_TOP, ALIGN_CENTER, arrow_fontindex,
  629.                            RGBACOLOR_SETALPHA (options.clock_color, 0x7f), 999999.0f, false, LOCALIZE (L"EndGame_Agreement"));
  630.          else if (the_board.game_state == STATE_DRAW_OTHER)
  631.             Scene_SetText (&the_scene.gui.arrow_text, 3.3f, 5.0f, -1, ALIGN_CENTER, ALIGN_TOP, ALIGN_CENTER, arrow_fontindex,
  632.                            RGBACOLOR_SETALPHA (options.clock_color, 0x7f), 999999.0f, false, LOCALIZE (L"EndGame_DrawOther"));
  633.  
  634.          // enable the "comment on this move" menu option
  635.          EnableMenuItem (GetMenu (hMainWnd), MENUID_MOVE_COMMENTMOVE, MF_ENABLED);
  636.       }
  637.  
  638.       // else are we watching another move, but not the beginning of the game ?
  639.       else if (the_board.viewed_move > 0)
  640.       {
  641.          GUIBUTTON_ENABLE (the_scene.gui.larrow); // enable "back" arrow if it isn't displayed yet
  642.          GUIBUTTON_ENABLE (the_scene.gui.rarrow); // enable "forward" arrow if it isn't displayed yet
  643.          Scene_SetText (&the_scene.gui.arrow_text, 3.3f, 5.0f, -1, ALIGN_CENTER, ALIGN_TOP, ALIGN_CENTER, arrow_fontindex,
  644.                         RGBACOLOR_SETALPHA (options.clock_color, 0x7f), 999999.0f, false,
  645.                         L"%s %d\n%s", LOCALIZE (L"Move"), (the_board.viewed_move + 1) / 2, (the_board.viewed_move % 2 ? LOCALIZE (L"Games_White"): LOCALIZE (L"Games_Black")));
  646.  
  647.          // hints are not usable when watching the game history
  648.          EnableMenuItem (GetMenu (hMainWnd), MENUID_MOVE_SUGGESTMOVE, MF_GRAYED);
  649.  
  650.          // enable the "save position as" and "comment on this move" menu options
  651.          EnableMenuItem (GetMenu (hMainWnd), MENUID_GAME_SAVEPOSITIONAS, MF_ENABLED);
  652.          EnableMenuItem (GetMenu (hMainWnd), MENUID_MOVE_COMMENTMOVE, MF_ENABLED);
  653.       }
  654.  
  655.       // else we must be watching the beginning of the game (no move yet)
  656.       else
  657.       {
  658.          GUIBUTTON_DISABLE (the_scene.gui.larrow); // disable "back" arrow if it's already displayed
  659.          GUIBUTTON_ENABLE (the_scene.gui.rarrow); // enable "forward" arrow if it isn't displayed yet
  660.          Scene_SetText (&the_scene.gui.arrow_text, 3.3f, 5.0f, -1, ALIGN_CENTER, ALIGN_TOP, ALIGN_CENTER, arrow_fontindex,
  661.                         RGBACOLOR_SETALPHA (options.clock_color, 0x7f), 999999.0f, false, LOCALIZE (L"Beginning"));
  662.  
  663.          // hints are not usable when watching the game history
  664.          EnableMenuItem (GetMenu (hMainWnd), MENUID_MOVE_SUGGESTMOVE, MF_GRAYED);
  665.  
  666.          // disable the "save position as" and "comment on this move" menu options
  667.          EnableMenuItem (GetMenu (hMainWnd), MENUID_GAME_SAVEPOSITIONAS, MF_GRAYED);
  668.          EnableMenuItem (GetMenu (hMainWnd), MENUID_MOVE_COMMENTMOVE, MF_GRAYED);
  669.       }
  670.    }
  671.    else
  672.    {
  673.       // game has not started, disable the "save", "save as" and "save position as" menu options
  674.       EnableMenuItem (GetMenu (hMainWnd), MENUID_GAME_SAVE, MF_GRAYED);
  675.       EnableMenuItem (GetMenu (hMainWnd), MENUID_GAME_SAVEAS, MF_GRAYED);
  676.       EnableMenuItem (GetMenu (hMainWnd), MENUID_GAME_SAVEPOSITIONAS, MF_GRAYED);
  677.  
  678.       // if we are NOT on Internet play AND no longer in closeup mode, enable the start position setup mode
  679.       EnableMenuItem (GetMenu (hMainWnd), MENUID_GAME_SETUPPOSITION, ((network_player == NULL) && (current_distance != CLOSEUP_VIEW_DISTANCE) && (current_pitch != CLOSEUP_VIEW_PITCH) ? MF_ENABLED : MF_GRAYED));
  680.  
  681.       // if the current player is a human AND its opponent is a computer, allow him to ask us for a hint
  682.       if ((current_player->type == PLAYER_HUMAN) && (opposite_player->type == PLAYER_COMPUTER))
  683.          EnableMenuItem (GetMenu (hMainWnd), MENUID_MOVE_SUGGESTMOVE, MF_ENABLED);
  684.       else
  685.          EnableMenuItem (GetMenu (hMainWnd), MENUID_MOVE_SUGGESTMOVE, MF_GRAYED);
  686.  
  687.       // disable the "cancel last move", "comment move" and "go to move" menu options
  688.       EnableMenuItem (GetMenu (hMainWnd), MENUID_MOVE_CANCELLASTMOVE, MF_GRAYED);
  689.       EnableMenuItem (GetMenu (hMainWnd), MENUID_MOVE_COMMENTMOVE, MF_GRAYED);
  690.       EnableMenuItem (GetMenu (hMainWnd), MENUID_MOVE_GOTOMOVE, MF_GRAYED);
  691.  
  692.       is_paused = false; // clear pause status (we can only pause a game when it's been started)
  693.  
  694.       // and disable the two arrows and the arrow text
  695.       GUIBUTTON_DISABLE (the_scene.gui.larrow);
  696.       GUIBUTTON_DISABLE (the_scene.gui.rarrow);
  697.       the_scene.gui.arrow_text.is_displayed = false;
  698.    }
  699.  
  700.    // no matter whether the game started or not, if the current player is a human AND its opponent is a computer, allow him to swap sides
  701.    if ((current_player->type == PLAYER_HUMAN) && (opposite_player->type == PLAYER_COMPUTER))
  702.       EnableMenuItem (GetMenu (hMainWnd), MENUID_CHESSBOARD_SWAPSIDES, MF_ENABLED);
  703.    else
  704.       EnableMenuItem (GetMenu (hMainWnd), MENUID_CHESSBOARD_SWAPSIDES, MF_GRAYED);
  705.  
  706.    // no matter whether the game started or not, enable players renaming only if we are NOT in internet mode
  707.    EnableMenuItem (GetMenu (hMainWnd), MENUID_CHESSBOARD_RENAMESIDES, (network_player == NULL ? MF_ENABLED : MF_GRAYED));
  708.  
  709.    // update window title
  710.    if ((the_board.players[COLOR_WHITE].name[0] != 0) && (the_board.players[COLOR_BLACK].name[0] != 0))
  711.    {
  712.       swprintf_s (window_title, WCHAR_SIZEOF (window_title), L"%s %s %s - " PROGRAM_NAME L"%s", the_board.players[COLOR_WHITE].name, LOCALIZE (L"Versus"), the_board.players[COLOR_BLACK].name, (is_registered ? L"" : LOCALIZE (L"EvaluationMode")));
  713.       SetWindowText (hMainWnd, window_title); // update window title
  714.    }
  715.    else if (the_board.players[COLOR_WHITE].name[0] != 0)
  716.    {
  717.       swprintf_s (window_title, WCHAR_SIZEOF (window_title), L"%s - " PROGRAM_NAME L"%s", the_board.players[COLOR_WHITE].name, (is_registered ? L"" : LOCALIZE (L"EvaluationMode")));
  718.       SetWindowText (hMainWnd, window_title); // update window title
  719.    }
  720.  
  721.    // are we in internet mode AND are we logged in ?
  722.    if ((network_player != NULL) && network_player->is_logged_in)
  723.    {
  724.       // are we currently playing a game ?
  725.       if (network_player->is_in_game)
  726.       {
  727.          GUIBUTTON_ENABLE (the_scene.gui.chatbutton); // enable chat button if it's not enabled yet
  728.          GUIBUTTON_DISABLE (the_scene.gui.gamesbutton); // disable games button if it was enabled
  729.          GUIBUTTON_DISABLE (the_scene.gui.peoplebutton); // disable people button if it was enabled
  730.          EnableMenuItem (GetMenu (hMainWnd), MENUID_GAME_RESIGN, MF_ENABLED); // allow resigning
  731.       }
  732.       else
  733.       {
  734.          GUIBUTTON_DISABLE (the_scene.gui.chatbutton); // disable chat button if it was enabled
  735.          GUIBUTTON_ENABLE (the_scene.gui.gamesbutton); // enable games button if it's not enabled yet
  736.          GUIBUTTON_ENABLE (the_scene.gui.peoplebutton); // enable people button if it's not enabled yet
  737.          EnableMenuItem (GetMenu (hMainWnd), MENUID_GAME_RESIGN, MF_GRAYED); // disable ability to resign
  738.       }
  739.       EnableMenuItem (GetMenu (hMainWnd), MENUID_GAME_PAUSE, MF_DISABLED); // disallow pause
  740.       EnableMenuItem (GetMenu (hMainWnd), MENUID_GAME_STATISTICS, MF_ENABLED); // enable stats
  741.  
  742.       enabled_value = MF_ENABLED; // remember to enable the internet-related menu items
  743.    }
  744.    // else it's a local or vs. computer game
  745.    else
  746.    {
  747.       GUIBUTTON_DISABLE (the_scene.gui.chatbutton); // disable chat button if it was enabled
  748.       GUIBUTTON_DISABLE (the_scene.gui.gamesbutton); // disable games button if it was enabled
  749.       GUIBUTTON_DISABLE (the_scene.gui.peoplebutton); // disable people button if it was enabled
  750.       EnableMenuItem (GetMenu (hMainWnd), MENUID_GAME_PAUSE, (the_board.move_count > 1 ? MF_ENABLED : MF_GRAYED)); // allow pause if the game has started
  751.       EnableMenuItem (GetMenu (hMainWnd), MENUID_GAME_RESIGN, (the_board.move_count > 1 ? MF_ENABLED : MF_GRAYED)); // allow resigning if the game has started
  752.       EnableMenuItem (GetMenu (hMainWnd), MENUID_GAME_STATISTICS, MF_GRAYED); // disable stats
  753.  
  754.       enabled_value = MF_GRAYED; // remember to disable the internet-related menu items
  755.    }
  756.  
  757.    EnableMenuItem (GetMenu (hMainWnd), MENUID_INTERNET_SHOWONLINEPLAYERS, enabled_value);
  758.    EnableMenuItem (GetMenu (hMainWnd), MENUID_INTERNET_SHOWSOUGHTGAMES, enabled_value);
  759.    EnableMenuItem (GetMenu (hMainWnd), MENUID_INTERNET_SEEKGAME, enabled_value);
  760.    if (!options.network.want_publicchat)
  761.    {
  762.       EnableMenuItem (GetMenu (hMainWnd), MENUID_INTERNET_CHATTERCHANNELS, MF_GRAYED); // always grayed if we don't want public chat
  763.       EnableMenuItem (GetMenu (hMainWnd), MENUID_INTERNET_ENTERCHATTEXT, MF_GRAYED);
  764.    }
  765.    else
  766.    {
  767.       EnableMenuItem (GetMenu (hMainWnd), MENUID_INTERNET_CHATTERCHANNELS, enabled_value); // else enabled only in internet mode
  768.       EnableMenuItem (GetMenu (hMainWnd), MENUID_INTERNET_ENTERCHATTEXT, enabled_value);
  769.    }
  770.    EnableMenuItem (GetMenu (hMainWnd), MENUID_INTERNET_DISPLAYPLAYERCARD, enabled_value);
  771.    EnableMenuItem (GetMenu (hMainWnd), MENUID_INTERNET_DISPLAYYOURCARD, enabled_value);
  772.    EnableMenuItem (GetMenu (hMainWnd), MENUID_INTERNET_MOTD, enabled_value);
  773.  
  774.    the_board.reevaluate = false; // board evaluation has been done
  775.    return; // finished, new board state is known
  776. }
  777.