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  1. // scene.cpp
  2.  
  3. #include "common.h"
  4.  
  5.  
  6. // prototypes of local functions
  7. static void Scene_AddPart (scene_t *scene, int part_type, int part_color, float pos_x, float pos_y, float pos_z, float turn_yaw, float pitch);
  8. static void Scene_AddTile (scene_t *scene, int tile_type, float scale, float pos_x, float pos_y, float pos_z, float turn_yaw);
  9.  
  10.  
  11. // global variables used in this module only
  12. static wchar_t connected_comment[4096];
  13. static wchar_t filename[MAX_PATH];
  14. static float simpleshadow_sizes[] =
  15. {
  16.    0, // #define PART_NONE 0
  17.    2.5f, // #define PART_KING 1
  18.    2.45f, // #define PART_QUEEN 2
  19.    2.35f, // #define PART_BISHOP 3
  20.    2.25f, // #define PART_KNIGHT 4
  21.    2.15f, // #define PART_ROOK 5
  22.    2.0f, // #define PART_PAWN 6
  23. };
  24.  
  25.  
  26. void Scene_Init (scene_t *scene, board_t *board)
  27. {
  28.    // this function initializes the scene objects array and inserts the chess table in it
  29.  
  30.    wchar_t format_string[4096];
  31.  
  32.    // allocate array for the board (3 objects) and zero it out
  33.    scene->objects = (sceneobject_t *) SAFE_malloc (3, sizeof (sceneobject_t), true);
  34.  
  35.    // insert the table edges, the table and the board
  36.    scene->objects[0].mesh_index = theme->trim_meshindex;
  37.    scene->objects[0].texture_index = theme->trim_texture;
  38.    scene->objects[0].scale = 1.0f;
  39.    scene->objects[1].mesh_index = theme->table_meshindex;
  40.    scene->objects[1].texture_index = theme->table_texture;
  41.    scene->objects[1].scale = 1.0f;
  42.    scene->objects[2].mesh_index = theme->board_meshindex;
  43.    scene->objects[2].texture_index = theme->board_texture;
  44.    scene->objects[2].scale = 1.0f;
  45.    scene->object_count = 3;
  46.  
  47.    // reset the camera position for a cool slide-in effect, but only if autorotate is enabled
  48.    if (options.want_autorotateon1vs1)
  49.    {
  50.       current_pitch = CLOSEUP_VIEW_PITCH; // autorotate is enabled, prepare for slide-in effect
  51.       current_yaw = (Board_ColorToMove (board) == COLOR_WHITE ? 90.0f : -90.0f);
  52.       current_distance = CLOSEUP_VIEW_DISTANCE;
  53.       if (current_distance >= MIN_VIEW_DISTANCE)
  54.          current_distance = MIN_VIEW_DISTANCE - 1.0f; // consistency check for stupid programmers
  55.    }
  56.    else
  57.    {
  58.       current_pitch = 55.0f; // no autorotate, reset to standard view position directly
  59.       current_yaw = (Board_ColorToMove (board) == COLOR_BLACK ? 90.0f : -90.0f);
  60.       current_distance = 70.0f;
  61.       if (current_distance < MIN_VIEW_DISTANCE)
  62.          current_distance = MIN_VIEW_DISTANCE; // consistency check for stupid programmers
  63.    }
  64.  
  65.    // HACK to prevent the player to click and block the view angles while the slide-in is not finished
  66.    command_ignoretime = current_time + 2.0f; // allow 2 seconds
  67.  
  68.    // build the connected comment string (we use it as a global variable)
  69.    wcscpy_s (format_string, WCHAR_SIZEOF (format_string), LOCALIZE (L"YouAreConnectedToX"));
  70.    wcscat_s (format_string, WCHAR_SIZEOF (format_string), L"\n");
  71.    wcscat_s (format_string, WCHAR_SIZEOF (format_string), LOCALIZE (L"YouMayEitherDisplayThePlayersListOrTheSoughtGamesList"));
  72.    wcscat_s (format_string, WCHAR_SIZEOF (format_string), L"\n");
  73.    wcscat_s (format_string, WCHAR_SIZEOF (format_string), LOCALIZE (L"PleaseReferToTheInternetMenu"));
  74.    swprintf_s (connected_comment, WCHAR_SIZEOF (connected_comment), format_string, options.network.server_address);
  75.  
  76.    // completely reset the whole GUI structure so as to NULL out all pointers
  77.    memset (&scene->gui, 0, sizeof (scene->gui));
  78.  
  79.    // set the buttons locations
  80.    Scene_SetButton (&scene->gui.larrow, 0.3f, 0.5f, 3.0f, 4.0f, larrow_spriteindex, NULL);
  81.    Scene_SetButton (&scene->gui.rarrow, 3.3f, 0.5f, 3.0f, 4.0f, rarrow_spriteindex, NULL);
  82.    Scene_SetButton (&scene->gui.newgamebutton, 20.0f, 65.0f, 20.0f, 26.0f, newgamebutton_spriteindex, L"\n\n\n\n\n\n\n%s", LOCALIZE (L"NewGame"));
  83.    Scene_SetButton (&scene->gui.opengamebutton, 60.0f, 65.0f, 20.0f, 26.0f, opengamebutton_spriteindex, L"\n\n\n\n\n\n\n%s", LOCALIZE (L"OpenGame"));
  84.    Scene_SetButton (&scene->gui.chatbutton, 1.0f, 10.0f, 10.0f, 13.0f, chatbutton_spriteindex, NULL);
  85.    Scene_SetButton (&scene->gui.gamesbutton, 1.0f, 35.0f, 10.0f, 13.0f, gamesbutton_spriteindex, NULL);
  86.    Scene_SetButton (&scene->gui.peoplebutton, 1.0f, 60.0f, 10.0f, 13.0f, peoplebutton_spriteindex, NULL);
  87.  
  88.    // remember to update the scene
  89.    scene->update = true;
  90.  
  91.    return; // finished
  92. }
  93.  
  94.  
  95. void Scene_Shutdown (scene_t *scene)
  96. {
  97.    // this function frees the memory space allocated for the 3D scene and clears its pointers
  98.  
  99.    int cchistory_index;
  100.  
  101.    // free GUI mallocated buffers
  102.    SAFE_free ((void **) &scene->gui.arrow_text.buffer);
  103.    scene->gui.arrow_text.is_displayed = false;
  104.    SAFE_free ((void **) &scene->gui.comment_text.buffer);
  105.    scene->gui.comment_text.is_displayed = false;
  106.    SAFE_free ((void **) &scene->gui.history_text.buffer);
  107.    scene->gui.history_text.is_displayed = false;
  108.    SAFE_free ((void **) &scene->gui.clock_text.buffer);
  109.    scene->gui.clock_text.is_displayed = false;
  110.    SAFE_free ((void **) &scene->gui.turn_text.buffer);
  111.    scene->gui.turn_text.is_displayed = false;
  112.    SAFE_free ((void **) &scene->gui.central_text.buffer);
  113.    scene->gui.central_text.is_displayed = false;
  114.  
  115.    // for each entry in the CC history...
  116.    for (cchistory_index = 0; cchistory_index < scene->gui.cchistory_count; cchistory_index++)
  117.       SAFE_free ((void **) &scene->gui.cchistory[cchistory_index].text); // free its text buffer
  118.    SAFE_free ((void **) &scene->gui.cchistory); // free the GUI's CC history
  119.    scene->gui.cchistory_count = 0;
  120.  
  121.    SAFE_free ((void **) &scene->objects); // free the scene objects array
  122.    scene->object_count = 0;
  123.  
  124.    return; // finished
  125. }
  126.  
  127.  
  128. void Scene_Update (scene_t *scene, board_t *board)
  129. {
  130.    // this function updates the scene objects to display with what's currently on the board
  131.  
  132.    static bool rooksound_played = false; // hack to have two sounds when a king castles
  133.  
  134.    boardslot_t *boardslot;
  135.    boardmove_t *currentmove;
  136.    player_t *local_player;
  137.    player_t *network_player;
  138.    player_t *current_player;
  139.    player_t *opposite_player;
  140.    wchar_t *history_text; // mallocated
  141.    int historytext_size;
  142.    unsigned char takenpart_type;
  143.    int movement_direction;
  144.    int line;
  145.    int column;
  146.    int pos_index;
  147.    int part_index;
  148.    int move_index;
  149.    int start_index;
  150.    int length;
  151.    int threat_line;
  152.    int threat_column;
  153.    int minutes;
  154.    int seconds;
  155.    float flaticons_yaw;
  156.    float source_x;
  157.    float source_y;
  158.    float target_x;
  159.    float target_y;
  160.    float current_x;
  161.    float current_y;
  162.    float current_z;
  163.    int movement_diffco;
  164.    int movement_diffli;
  165.    float movement_maxheight;
  166.    float movement_ratio;
  167.  
  168.    // get the current player (we'll need it), its opponent and see if we're online
  169.    current_player = Player_GetCurrent ();
  170.    opposite_player = Player_GetOpposite ();
  171.    network_player = Player_FindByType (PLAYER_INTERNET);
  172.  
  173.    // determine display yaw (for flat icons) according to camera angle
  174.    if ((current_yaw > 45.0f) && (current_yaw <= 135.0f))
  175.       flaticons_yaw = 180.0f;
  176.    else if ((current_yaw > -45.0f) && (current_yaw <= 45.0f))
  177.       flaticons_yaw = 90.0f;
  178.    else if ((current_yaw > -135.0f) && (current_yaw <= -45.0f))
  179.       flaticons_yaw = 0.0f;
  180.    else
  181.       flaticons_yaw = -90.0f;
  182.  
  183.    // get the current move
  184.    currentmove = &board->moves[board->viewed_move]; // quick access to current move
  185.  
  186.    // fetch the background sprite from the theme
  187.    if (want_custombackground)
  188.       scene->background_spriteindex = custombg.sprite_index; // use the custom background if specified
  189.    else
  190.       scene->background_spriteindex = theme->bg.sprite_index; // else use the theme's supplied background
  191.  
  192.    // shrink the scene objects array to leave just the board (3 objects)
  193.    scene->objects = (sceneobject_t *) SAFE_realloc (scene->objects, scene->object_count, 3, sizeof (sceneobject_t), false);
  194.    scene->object_count = 3;
  195.  
  196.    // update the board theme
  197.    scene->objects[0].mesh_index = theme->trim_meshindex;
  198.    scene->objects[0].texture_index = theme->trim_texture;
  199.    scene->objects[0].material_index = theme->trim_material;
  200.    scene->objects[0].scale = 1.0f;
  201.    scene->objects[1].mesh_index = theme->table_meshindex;
  202.    scene->objects[1].texture_index = theme->table_texture;
  203.    scene->objects[1].material_index = theme->table_material;
  204.    scene->objects[1].scale = 1.0f;
  205.    scene->objects[2].mesh_index = theme->board_meshindex;
  206.    scene->objects[2].texture_index = theme->board_texture;
  207.    scene->objects[2].material_index = theme->board_material;
  208.    scene->objects[2].scale = 1.0f;
  209.  
  210.    // draw the grid numbers if we want them
  211.    if (want_grid)
  212.       Scene_AddTile (scene, theme->grid_texture, 30.0f, 0.0f, 0.0f, 0.01f, 0.0f);
  213.  
  214.    ////////////////////////////////////////////////////////////////////////////////////////////////
  215.    // recompute the slot textures (only in play mode when we render the real board)
  216.  
  217.    // erase all the slot flags
  218.    for (line = 0; line < 8; line++)
  219.       for (column = 0; column < 8; column++)
  220.          currentmove->slots[line][column].flags = FLAG_NONE; // because we will recompute them
  221.  
  222.    // cycle through all the grid again and see if either king is in check
  223.    for (line = 0; line < 8; line++)
  224.       for (column = 0; column < 8; column++)
  225.       {
  226.          boardslot = &currentmove->slots[line][column]; // quick access to grid slot
  227.  
  228.          if (boardslot->part != PART_KING)
  229.             continue; // if this slot is not a king, skip it
  230.  
  231.          // is this king currently threatened ?
  232.          if (Move_IsKingThreatenedAtLocation (currentmove, boardslot->color, line, column, &threat_line, &threat_column))
  233.          {
  234.             currentmove->slots[line][column].flags |= FLAG_CHECK; // mark it as threatened
  235.             currentmove->slots[threat_line][threat_column].flags |= FLAG_THREAT; // and who threatens it
  236.          }
  237.       }
  238.  
  239.    // are we in play mode ? i.e, are we rendering the last move ?
  240.    if (board->viewed_move == board->move_count - 1)
  241.    {
  242.       // mark the selected position as selected
  243.       if (IS_VALID_POSITION (board->selected_position))
  244.          currentmove->slots[board->selected_position[0]][board->selected_position[1]].flags |= FLAG_SELECTED;
  245.  
  246.       // now cycle through all the grid again and see if some slots need to be coloured
  247.       for (line = 0; line < 8; line++)
  248.          for (column = 0; column < 8; column++)
  249.          {
  250.             boardslot = &currentmove->slots[line][column]; // quick access to grid slot
  251.  
  252.             if (!(boardslot->flags & FLAG_SELECTED))
  253.                continue; // if this slot is not selected, skip it
  254.  
  255.             //////////////////////////////////////////////////////////////////////////////////////////
  256.             ////////////////////////////////////////// PAWN //////////////////////////////////////////
  257.             //////////////////////////////////////////////////////////////////////////////////////////
  258.             // is it a pawn ?
  259.             if (boardslot->part == PART_PAWN)
  260.             {
  261.                // figure out movement direction
  262.                if (boardslot->color == COLOR_WHITE)
  263.                   movement_direction = 1;
  264.                else
  265.                   movement_direction = -1;
  266.  
  267.                // if pawn has still room to move forward, it can
  268.                if ((((line < 7) && (movement_direction == 1)) || ((line > 0) && (movement_direction == -1)))
  269.                    && (currentmove->slots[line + movement_direction][column].part == PART_NONE))
  270.                {
  271.                   currentmove->slots[line + movement_direction][column].flags |= FLAG_POSSIBLEMOVE;
  272.  
  273.                   // if pawn is still in its initial slot, it can move twice forward
  274.                   if ((((line == 1) && (movement_direction == 1)) || ((line == 6) && (movement_direction == -1)))
  275.                       && (currentmove->slots[line + movement_direction * 2][column].part == PART_NONE))
  276.                      currentmove->slots[line + movement_direction * 2][column].flags |= FLAG_POSSIBLEMOVE;
  277.                }
  278.  
  279.                // see if pawn can take a piece on its left
  280.                if ((column > 0) && (currentmove->slots[line + movement_direction][column - 1].part != PART_NONE)
  281.                    && (currentmove->slots[line + movement_direction][column - 1].color != currentmove->slots[line][column].color))
  282.                   currentmove->slots[line + movement_direction][column - 1].flags |= FLAG_TAKEABLE;
  283.  
  284.                // see if pawn can take a piece on its right
  285.                if ((column < 7) && (currentmove->slots[line + movement_direction][column + 1].part != PART_NONE)
  286.                    && (currentmove->slots[line + movement_direction][column + 1].color != currentmove->slots[line][column].color))
  287.                   currentmove->slots[line + movement_direction][column + 1].flags |= FLAG_TAKEABLE;
  288.  
  289.                // if previous move was a pawn rush, see if pawn can take "en passant"
  290.                if ((currentmove->part == PART_PAWN)
  291.                      && (currentmove->target[1] == currentmove->source[1]) // pawn moved in column
  292.                      && (abs (currentmove->target[0] - currentmove->source[0]) == 2) // pawn rushed
  293.                      && (currentmove->target[0] == line) // pawn is in line with us
  294.                      && (abs (currentmove->target[1] - column) == 1)) // pawn is next to us
  295.                   currentmove->slots[line + movement_direction][currentmove->target[1]].flags |= FLAG_TAKEABLE;
  296.             }
  297.  
  298.             //////////////////////////////////////////////////////////////////////////////////////////
  299.             ////////////////////////////////////////// ROOK //////////////////////////////////////////
  300.             //////////////////////////////////////////////////////////////////////////////////////////
  301.             // else is it a rook ?
  302.             else if (boardslot->part == PART_ROOK)
  303.             {
  304.                // see how far rook can move upwards
  305.                for (pos_index = line + 1; pos_index < 8; pos_index++)
  306.                {
  307.                   if (currentmove->slots[pos_index][column].part != PART_NONE)
  308.                   {
  309.                      if (currentmove->slots[pos_index][column].color != currentmove->slots[line][column].color)
  310.                         currentmove->slots[pos_index][column].flags |= FLAG_TAKEABLE;
  311.                      break;
  312.                   }
  313.                   currentmove->slots[pos_index][column].flags |= FLAG_POSSIBLEMOVE;
  314.                }
  315.  
  316.                // see how far rook can move downwards
  317.                for (pos_index = line - 1; pos_index >= 0; pos_index--)
  318.                {
  319.                   if (currentmove->slots[pos_index][column].part != PART_NONE)
  320.                   {
  321.                      if (currentmove->slots[pos_index][column].color != currentmove->slots[line][column].color)
  322.                         currentmove->slots[pos_index][column].flags |= FLAG_TAKEABLE;
  323.                      break;
  324.                   }
  325.                   currentmove->slots[pos_index][column].flags |= FLAG_POSSIBLEMOVE;
  326.                }
  327.  
  328.                // see how far rook can move left
  329.                for (pos_index = column - 1; pos_index >= 0; pos_index--)
  330.                {
  331.                   if (currentmove->slots[line][pos_index].part != PART_NONE)
  332.                   {
  333.                      if (currentmove->slots[line][pos_index].color != currentmove->slots[line][column].color)
  334.                         currentmove->slots[line][pos_index].flags |= FLAG_TAKEABLE;
  335.                      break;
  336.                   }
  337.                   currentmove->slots[line][pos_index].flags |= FLAG_POSSIBLEMOVE;
  338.                }
  339.  
  340.                // see how far rook can move right
  341.                for (pos_index = column + 1; pos_index < 8; pos_index++)
  342.                {
  343.                   if (currentmove->slots[line][pos_index].part != PART_NONE)
  344.                   {
  345.                      if (currentmove->slots[line][pos_index].color != currentmove->slots[line][column].color)
  346.                         currentmove->slots[line][pos_index].flags |= FLAG_TAKEABLE;
  347.                      break;
  348.                   }
  349.                   currentmove->slots[line][pos_index].flags |= FLAG_POSSIBLEMOVE;
  350.                }
  351.             }
  352.  
  353.             //////////////////////////////////////////////////////////////////////////////////////////
  354.             ///////////////////////////////////////// KNIGHT /////////////////////////////////////////
  355.             //////////////////////////////////////////////////////////////////////////////////////////
  356.             // else is it a knight ?
  357.             else if (boardslot->part == PART_KNIGHT)
  358.             {
  359.                // peek knight's NNW move
  360.                if ((column > 0) && (line < 6))
  361.                   if (currentmove->slots[line + 2][column - 1].part == PART_NONE)
  362.                      currentmove->slots[line + 2][column - 1].flags |= FLAG_POSSIBLEMOVE;
  363.                   else if (currentmove->slots[line + 2][column - 1].color != currentmove->slots[line][column].color)
  364.                      currentmove->slots[line + 2][column - 1].flags |= FLAG_TAKEABLE;
  365.  
  366.                // peek knight's NNE move
  367.                if ((column < 7) && (line < 6))
  368.                   if (currentmove->slots[line + 2][column + 1].part == PART_NONE)
  369.                      currentmove->slots[line + 2][column + 1].flags |= FLAG_POSSIBLEMOVE;
  370.                   else if (currentmove->slots[line + 2][column + 1].color != currentmove->slots[line][column].color)
  371.                      currentmove->slots[line + 2][column + 1].flags |= FLAG_TAKEABLE;
  372.  
  373.                // peek knight's ENE move
  374.                if ((column < 6) && (line < 7))
  375.                   if (currentmove->slots[line + 1][column + 2].part == PART_NONE)
  376.                      currentmove->slots[line + 1][column + 2].flags |= FLAG_POSSIBLEMOVE;
  377.                   else if (currentmove->slots[line + 1][column + 2].color != currentmove->slots[line][column].color)
  378.                      currentmove->slots[line + 1][column + 2].flags |= FLAG_TAKEABLE;
  379.  
  380.                // peek knight's ESE move
  381.                if ((column < 6) && (line > 0))
  382.                   if (currentmove->slots[line - 1][column + 2].part == PART_NONE)
  383.                      currentmove->slots[line - 1][column + 2].flags |= FLAG_POSSIBLEMOVE;
  384.                   else if (currentmove->slots[line - 1][column + 2].color != currentmove->slots[line][column].color)
  385.                      currentmove->slots[line - 1][column + 2].flags |= FLAG_TAKEABLE;
  386.  
  387.                // peek knight's SSW move
  388.                if ((column > 0) && (line > 1))
  389.                   if (currentmove->slots[line - 2][column - 1].part == PART_NONE)
  390.                      currentmove->slots[line - 2][column - 1].flags |= FLAG_POSSIBLEMOVE;
  391.                   else if (currentmove->slots[line - 2][column - 1].color != currentmove->slots[line][column].color)
  392.                      currentmove->slots[line - 2][column - 1].flags |= FLAG_TAKEABLE;
  393.  
  394.                // peek knight's SSE move
  395.                if ((column < 7) && (line > 1))
  396.                   if (currentmove->slots[line - 2][column + 1].part == PART_NONE)
  397.                      currentmove->slots[line - 2][column + 1].flags |= FLAG_POSSIBLEMOVE;
  398.                   else if (currentmove->slots[line - 2][column + 1].color != currentmove->slots[line][column].color)
  399.                      currentmove->slots[line - 2][column + 1].flags |= FLAG_TAKEABLE;
  400.  
  401.                // peek knight's WNW move
  402.                if ((column > 1) && (line < 7))
  403.                   if (currentmove->slots[line + 1][column - 2].part == PART_NONE)
  404.                      currentmove->slots[line + 1][column - 2].flags |= FLAG_POSSIBLEMOVE;
  405.                   else if (currentmove->slots[line + 1][column - 2].color != currentmove->slots[line][column].color)
  406.                      currentmove->slots[line + 1][column - 2].flags |= FLAG_TAKEABLE;
  407.  
  408.                // peek knight's WSW move
  409.                if ((column > 1) && (line > 0))
  410.                   if (currentmove->slots[line - 1][column - 2].part == PART_NONE)
  411.                      currentmove->slots[line - 1][column - 2].flags |= FLAG_POSSIBLEMOVE;
  412.                   else if (currentmove->slots[line - 1][column - 2].color != currentmove->slots[line][column].color)
  413.                      currentmove->slots[line - 1][column - 2].flags |= FLAG_TAKEABLE;
  414.             }
  415.  
  416.             //////////////////////////////////////////////////////////////////////////////////////////
  417.             ///////////////////////////////////////// BISHOP /////////////////////////////////////////
  418.             //////////////////////////////////////////////////////////////////////////////////////////
  419.             // else is it a bishop ?
  420.             else if (boardslot->part == PART_BISHOP)
  421.             {
  422.                // see how far bishop can move NE
  423.                for (pos_index = 1; pos_index < 8; pos_index++)
  424.                {
  425.                   if ((line + pos_index > 7) || (column + pos_index > 7))
  426.                      break;
  427.                   if (currentmove->slots[line + pos_index][column + pos_index].part != PART_NONE)
  428.                   {
  429.                      if (currentmove->slots[line + pos_index][column + pos_index].color != currentmove->slots[line][column].color)
  430.                         currentmove->slots[line + pos_index][column + pos_index].flags |= FLAG_TAKEABLE;
  431.                      break;
  432.                   }
  433.                   currentmove->slots[line + pos_index][column + pos_index].flags |= FLAG_POSSIBLEMOVE;
  434.                }
  435.  
  436.                // see how far bishop can move SE
  437.                for (pos_index = 1; pos_index < 8; pos_index++)
  438.                {
  439.                   if ((line - pos_index < 0) || (column + pos_index > 7))
  440.                      break;
  441.                   if (currentmove->slots[line - pos_index][column + pos_index].part != PART_NONE)
  442.                   {
  443.                      if (currentmove->slots[line - pos_index][column + pos_index].color != currentmove->slots[line][column].color)
  444.                         currentmove->slots[line - pos_index][column + pos_index].flags |= FLAG_TAKEABLE;
  445.                      break;
  446.                   }
  447.                   currentmove->slots[line - pos_index][column + pos_index].flags |= FLAG_POSSIBLEMOVE;
  448.                }
  449.  
  450.                // see how far bishop can move NW
  451.                for (pos_index = 1; pos_index < 8; pos_index++)
  452.                {
  453.                   if ((line + pos_index > 7) || (column - pos_index < 0))
  454.                      break;
  455.                   if (currentmove->slots[line + pos_index][column - pos_index].part != PART_NONE)
  456.                   {
  457.                      if (currentmove->slots[line + pos_index][column - pos_index].color != currentmove->slots[line][column].color)
  458.                         currentmove->slots[line + pos_index][column - pos_index].flags |= FLAG_TAKEABLE;
  459.                      break;
  460.                   }
  461.                   currentmove->slots[line + pos_index][column - pos_index].flags |= FLAG_POSSIBLEMOVE;
  462.                }
  463.  
  464.                // see how far bishop can move SW
  465.                for (pos_index = 1; pos_index < 8; pos_index++)
  466.                {
  467.                   if ((line - pos_index < 0) || (column - pos_index < 0))
  468.                      break;
  469.                   if (currentmove->slots[line - pos_index][column - pos_index].part != PART_NONE)
  470.                   {
  471.                      if (currentmove->slots[line - pos_index][column - pos_index].color != currentmove->slots[line][column].color)
  472.                         currentmove->slots[line - pos_index][column - pos_index].flags |= FLAG_TAKEABLE;
  473.                      break;
  474.                   }
  475.                   currentmove->slots[line - pos_index][column - pos_index].flags |= FLAG_POSSIBLEMOVE;
  476.                }
  477.             }
  478.  
  479.             //////////////////////////////////////////////////////////////////////////////////////////
  480.             ///////////////////////////////////////// QUEEN //////////////////////////////////////////
  481.             //////////////////////////////////////////////////////////////////////////////////////////
  482.             // else is it a queen ?
  483.             else if (boardslot->part == PART_QUEEN)
  484.             {
  485.                // see how far queen can move NE
  486.                for (pos_index = 1; pos_index < 8; pos_index++)
  487.                {
  488.                   if ((line + pos_index > 7) || (column + pos_index > 7))
  489.                      break;
  490.                   if (currentmove->slots[line + pos_index][column + pos_index].part != PART_NONE)
  491.                   {
  492.                      if (currentmove->slots[line + pos_index][column + pos_index].color != currentmove->slots[line][column].color)
  493.                         currentmove->slots[line + pos_index][column + pos_index].flags |= FLAG_TAKEABLE;
  494.                      break;
  495.                   }
  496.                   currentmove->slots[line + pos_index][column + pos_index].flags |= FLAG_POSSIBLEMOVE;
  497.                }
  498.  
  499.                // see how far queen can move SE
  500.                for (pos_index = 1; pos_index < 8; pos_index++)
  501.                {
  502.                   if ((line - pos_index < 0) || (column + pos_index > 7))
  503.                      break;
  504.                   if (currentmove->slots[line - pos_index][column + pos_index].part != PART_NONE)
  505.                   {
  506.                      if (currentmove->slots[line - pos_index][column + pos_index].color != currentmove->slots[line][column].color)
  507.                         currentmove->slots[line - pos_index][column + pos_index].flags |= FLAG_TAKEABLE;
  508.                      break;
  509.                   }
  510.                   currentmove->slots[line - pos_index][column + pos_index].flags |= FLAG_POSSIBLEMOVE;
  511.                }
  512.  
  513.                // see how far queen can move NW
  514.                for (pos_index = 1; pos_index < 8; pos_index++)
  515.                {
  516.                   if ((line + pos_index > 7) || (column - pos_index < 0))
  517.                      break;
  518.                   if (currentmove->slots[line + pos_index][column - pos_index].part != PART_NONE)
  519.                   {
  520.                      if (currentmove->slots[line + pos_index][column - pos_index].color != currentmove->slots[line][column].color)
  521.                         currentmove->slots[line + pos_index][column - pos_index].flags |= FLAG_TAKEABLE;
  522.                      break;
  523.                   }
  524.                   currentmove->slots[line + pos_index][column - pos_index].flags |= FLAG_POSSIBLEMOVE;
  525.                }
  526.  
  527.                // see how far queen can move SW
  528.                for (pos_index = 1; pos_index < 8; pos_index++)
  529.                {
  530.                   if ((line - pos_index < 0) || (column - pos_index < 0))
  531.                      break;
  532.                   if (currentmove->slots[line - pos_index][column - pos_index].part != PART_NONE)
  533.                   {
  534.                      if (currentmove->slots[line - pos_index][column - pos_index].color != currentmove->slots[line][column].color)
  535.                         currentmove->slots[line - pos_index][column - pos_index].flags |= FLAG_TAKEABLE;
  536.                      break;
  537.                   }
  538.                   currentmove->slots[line - pos_index][column - pos_index].flags |= FLAG_POSSIBLEMOVE;
  539.                }
  540.  
  541.                // see how far queen can move upwards
  542.                for (pos_index = line + 1; pos_index < 8; pos_index++)
  543.                {
  544.                   if (currentmove->slots[pos_index][column].part != PART_NONE)
  545.                   {
  546.                      if (currentmove->slots[pos_index][column].color != currentmove->slots[line][column].color)
  547.                         currentmove->slots[pos_index][column].flags |= FLAG_TAKEABLE;
  548.                      break;
  549.                   }
  550.                   currentmove->slots[pos_index][column].flags |= FLAG_POSSIBLEMOVE;
  551.                }
  552.  
  553.                // see how far queen can move downwards
  554.                for (pos_index = line - 1; pos_index >= 0; pos_index--)
  555.                {
  556.                   if (currentmove->slots[pos_index][column].part != PART_NONE)
  557.                   {
  558.                      if (currentmove->slots[pos_index][column].color != currentmove->slots[line][column].color)
  559.                         currentmove->slots[pos_index][column].flags |= FLAG_TAKEABLE;
  560.                      break;
  561.                   }
  562.                   currentmove->slots[pos_index][column].flags |= FLAG_POSSIBLEMOVE;
  563.                }
  564.  
  565.                // see how far queen can move left
  566.                for (pos_index = column - 1; pos_index >= 0; pos_index--)
  567.                {
  568.                   if (currentmove->slots[line][pos_index].part != PART_NONE)
  569.                   {
  570.                      if (currentmove->slots[line][pos_index].color != currentmove->slots[line][column].color)
  571.                         currentmove->slots[line][pos_index].flags |= FLAG_TAKEABLE;
  572.                      break;
  573.                   }
  574.                   currentmove->slots[line][pos_index].flags |= FLAG_POSSIBLEMOVE;
  575.                }
  576.  
  577.                // see how far queen can move right
  578.                for (pos_index = column + 1; pos_index < 8; pos_index++)
  579.                {
  580.                   if (currentmove->slots[line][pos_index].part != PART_NONE)
  581.                   {
  582.                      if (currentmove->slots[line][pos_index].color != currentmove->slots[line][column].color)
  583.                         currentmove->slots[line][pos_index].flags |= FLAG_TAKEABLE;
  584.                      break;
  585.                   }
  586.                   currentmove->slots[line][pos_index].flags |= FLAG_POSSIBLEMOVE;
  587.                }
  588.             }
  589.  
  590.             //////////////////////////////////////////////////////////////////////////////////////////
  591.             ////////////////////////////////////////// KING //////////////////////////////////////////
  592.             //////////////////////////////////////////////////////////////////////////////////////////
  593.             // else is it a king ?
  594.             else if (boardslot->part == PART_KING)
  595.             {
  596.                // see if king can move NE
  597.                if ((line < 7) && (column < 7))
  598.                {
  599.                   if (currentmove->slots[line + 1][column + 1].part == PART_NONE)
  600.                      currentmove->slots[line + 1][column + 1].flags |= FLAG_POSSIBLEMOVE;
  601.                   else if (currentmove->slots[line + 1][column + 1].color != currentmove->slots[line][column].color)
  602.                      currentmove->slots[line + 1][column + 1].flags |= FLAG_TAKEABLE;
  603.                }
  604.  
  605.                // see if king can move SE
  606.                if ((line > 0) && (column < 7))
  607.                {
  608.                   if (currentmove->slots[line - 1][column + 1].part == PART_NONE)
  609.                      currentmove->slots[line - 1][column + 1].flags |= FLAG_POSSIBLEMOVE;
  610.                   else if (currentmove->slots[line - 1][column + 1].color != currentmove->slots[line][column].color)
  611.                      currentmove->slots[line - 1][column + 1].flags |= FLAG_TAKEABLE;
  612.                }
  613.  
  614.                // see if king can move NW
  615.                if ((line < 7) && (column > 0))
  616.                {
  617.                   if (currentmove->slots[line + 1][column - 1].part == PART_NONE)
  618.                      currentmove->slots[line + 1][column - 1].flags |= FLAG_POSSIBLEMOVE;
  619.                   else if (currentmove->slots[line + 1][column - 1].color != currentmove->slots[line][column].color)
  620.                      currentmove->slots[line + 1][column - 1].flags |= FLAG_TAKEABLE;
  621.                }
  622.  
  623.                // see if king can move SW
  624.                if ((line > 0) && (column > 0))
  625.                {
  626.                   if (currentmove->slots[line - 1][column - 1].part == PART_NONE)
  627.                      currentmove->slots[line - 1][column - 1].flags |= FLAG_POSSIBLEMOVE;
  628.                   else if (currentmove->slots[line - 1][column - 1].color != currentmove->slots[line][column].color)
  629.                      currentmove->slots[line - 1][column - 1].flags |= FLAG_TAKEABLE;
  630.                }
  631.  
  632.                // see if king can move upwards
  633.                if (line < 7)
  634.                {
  635.                   if (currentmove->slots[line + 1][column].part == PART_NONE)
  636.                      currentmove->slots[line + 1][column].flags |= FLAG_POSSIBLEMOVE;
  637.                   else if (currentmove->slots[line + 1][column].color != currentmove->slots[line][column].color)
  638.                      currentmove->slots[line + 1][column].flags |= FLAG_TAKEABLE;
  639.                }
  640.  
  641.                // see if king can move downwards
  642.                if (line > 0)
  643.                {
  644.                   if (currentmove->slots[line - 1][column].part == PART_NONE)
  645.                      currentmove->slots[line - 1][column].flags |= FLAG_POSSIBLEMOVE;
  646.                   else if (currentmove->slots[line - 1][column].color != currentmove->slots[line][column].color)
  647.                      currentmove->slots[line - 1][column].flags |= FLAG_TAKEABLE;
  648.                }
  649.  
  650.                // see if king can move right
  651.                if (column < 7)
  652.                {
  653.                   if (currentmove->slots[line][column + 1].part == PART_NONE)
  654.                      currentmove->slots[line][column + 1].flags |= FLAG_POSSIBLEMOVE;
  655.                   else if (currentmove->slots[line][column + 1].color != currentmove->slots[line][column].color)
  656.                      currentmove->slots[line][column + 1].flags |= FLAG_TAKEABLE;
  657.                }
  658.  
  659.                // see if king can move left
  660.                if (column > 0)
  661.                {
  662.                   if (currentmove->slots[line][column - 1].part == PART_NONE)
  663.                      currentmove->slots[line][column - 1].flags |= FLAG_POSSIBLEMOVE;
  664.                   else if (currentmove->slots[line][column - 1].color != currentmove->slots[line][column].color)
  665.                      currentmove->slots[line][column - 1].flags |= FLAG_TAKEABLE;
  666.                }
  667.  
  668.                // can king castle bishopside ?
  669.                if (currentmove->sides[boardslot->color].shortcastle_allowed // no parts have moved yet
  670.                    && (currentmove->slots[line][5].part == PART_NONE) // no other part...
  671.                    && (currentmove->slots[line][6].part == PART_NONE) // ...in the way
  672.                    && !Move_IsCheck (currentmove, boardslot->color) // king not currently in check
  673.                    && !Move_IsKingThreatenedAtLocation (currentmove, boardslot->color, line, 5, &threat_line, &threat_column)) // king's way safe
  674.                   currentmove->slots[line][column + 2].flags |= FLAG_POSSIBLEMOVE; // allow castling bishopside
  675.  
  676.                // can king castle queenside ?
  677.                if (currentmove->sides[boardslot->color].longcastle_allowed // no parts have moved yet
  678.                    && (currentmove->slots[line][3].part == PART_NONE) // no other part...
  679.                    && (currentmove->slots[line][2].part == PART_NONE) // ...is...
  680.                    && (currentmove->slots[line][1].part == PART_NONE) // ...in the way
  681.                    && !Move_IsCheck (currentmove, boardslot->color) // king not currently in check
  682.                    && !Move_IsKingThreatenedAtLocation (currentmove, boardslot->color, line, 3, &threat_line, &threat_column)) // king's way safe
  683.                   currentmove->slots[line][column - 2].flags |= FLAG_POSSIBLEMOVE; // allow castling queenside
  684.             }
  685.          }
  686.    } // end if (play mode)
  687.  
  688.    ////////////////////////////////////////////////////////////////////////////////////////////////
  689.    // now place the parts that are off-board (taken parts)
  690.  
  691.    // but only if we want them displayed
  692.    if (options.want_takenparts)
  693.    {
  694.       // draw the white player's taken parts, place the part off the board (watch out for the hack...)
  695.       for (part_index = 0; part_index < currentmove->sides[COLOR_WHITE].takenpart_count; part_index++)
  696.       {
  697.          takenpart_type = currentmove->sides[COLOR_WHITE].takenparts[part_index];
  698.  
  699.          // do we want the 3D models or the flat icons ?
  700.          // we do when EITHER we don't want flat icons OR the current player is looking downstraight
  701.          if (!want_flaticons || (current_pitch < MAX_PITCH_FOR_FLAT_ICONS))
  702.             Scene_AddPart (scene, takenpart_type, COLOR_BLACK, (part_index < MAX_STACKABLE_PARTS ? 23.2f : 26.8f),
  703.                            (part_index % MAX_STACKABLE_PARTS == 0 ? 23.2f : scene->objects[scene->object_count - 1].y - (scene->objects[scene->object_count - 1].simpleshadow_size + simpleshadow_sizes[takenpart_type]) * 0.75f),
  704.                            0.04f, (takenpart_type == PART_PAWN ? -90.0f : 100.0f), 0.0f); // rotate pawns 90°
  705.          else
  706.             Scene_AddTile (scene, theme->flattextures[COLOR_BLACK][takenpart_type], 1.25f, (part_index < MAX_STACKABLE_PARTS ? 23.2f : 26.8f),
  707.                            20.0f - (part_index < MAX_STACKABLE_PARTS ? part_index : (part_index - MAX_STACKABLE_PARTS)) * 2.5f, 0.07f, flaticons_yaw);
  708.       }
  709.  
  710.       // now draw the black player's taken parts, place the part off the board (watch out for the hack...)
  711.       for (part_index = 0; part_index < currentmove->sides[COLOR_BLACK].takenpart_count; part_index++)
  712.       {
  713.          takenpart_type = currentmove->sides[COLOR_BLACK].takenparts[part_index];
  714.  
  715.          // do we want the 3D models or the flat icons ?
  716.          // we do when EITHER we don't want flat icons OR the current player is looking downstraight
  717.          if (!want_flaticons || (current_pitch < MAX_PITCH_FOR_FLAT_ICONS))
  718.             Scene_AddPart (scene, takenpart_type, COLOR_WHITE, (part_index < MAX_STACKABLE_PARTS ? -23.2f : -26.8f),
  719.                            (part_index % MAX_STACKABLE_PARTS == 0 ? -23.2f : scene->objects[scene->object_count - 1].y + (scene->objects[scene->object_count - 1].simpleshadow_size + simpleshadow_sizes[takenpart_type]) * 0.75f),
  720.                            0.04f, (takenpart_type == PART_PAWN ? -90.0f : 100.0f), 0.0f); // rotate pawns 90°
  721.          else
  722.             Scene_AddTile (scene, theme->flattextures[COLOR_WHITE][takenpart_type], 1.25f, (part_index < MAX_STACKABLE_PARTS ? -23.2f : -26.8f),
  723.                            -20.0f + (part_index < MAX_STACKABLE_PARTS ? part_index : (part_index - MAX_STACKABLE_PARTS)) * 2.5f, 0.07f, flaticons_yaw);
  724.       }
  725.    }
  726.  
  727.    ////////////////////////////////////////////////////////////////////////////////////////////////
  728.    // now draw the textured slots
  729.  
  730.    // cycle through all the board slots...
  731.    for (line = 0; line < 8; line++)
  732.       for (column = 0; column < 8; column++)
  733.       {
  734.          if (currentmove->slots[line][column].flags == FLAG_NONE)
  735.             continue; // skip everything that doesn't need to be drawn
  736.  
  737.          // draw the texture we want. Only one texture is allowed, so PRIORITY MATTERS.
  738.          if (currentmove->slots[line][column].flags & FLAG_SELECTED)
  739.             Scene_AddTile (scene, theme->selected_textureindex, 2.5f, 17.5f - (7 - column) * 5.0f, 17.5f - line * 5.0f, 0.02f, 0.0f);
  740.          else if (options.want_threats && currentmove->slots[line][column].flags & FLAG_CHECK)
  741.             Scene_AddTile (scene, theme->check_textureindex, 2.5f, 17.5f - (7 - column) * 5.0f, 17.5f - line * 5.0f, 0.02f, 0.0f);
  742.          else if (options.want_possiblemoves && currentmove->slots[line][column].flags & FLAG_POSSIBLEMOVE)
  743.             Scene_AddTile (scene, theme->possiblemove_textureindex, 2.5f, 17.5f - (7 - column) * 5.0f, 17.5f - line * 5.0f, 0.02f, 0.0f);
  744.          else if (options.want_possiblemoves && currentmove->slots[line][column].flags & FLAG_TAKEABLE)
  745.             Scene_AddTile (scene, theme->takeable_textureindex, 2.5f, 17.5f - (7 - column) * 5.0f, 17.5f - line * 5.0f, 0.02f, 0.0f);
  746.          else if (options.want_threats && currentmove->slots[line][column].flags & FLAG_THREAT)
  747.             Scene_AddTile (scene, theme->threat_textureindex, 2.5f, 17.5f - (7 - column) * 5.0f, 17.5f - line * 5.0f, 0.02f, 0.0f);
  748.       }
  749.  
  750.    // is it time to draw the hovered slot and last move textures on the board slots ?
  751.    if (animation_endtime < current_time)
  752.    {
  753.       // add the hovered slot tile (only when it should not be hidden because of highlighting)
  754.       if (!is_paused && IS_VALID_POSITION (board->hovered_position)
  755.           && ((highlight_endtime < current_time) || ((int) ((highlight_endtime - current_time) * 20.0f) % 2 == 1)))
  756.          Scene_AddTile (scene, theme->hovered_textureindex, 3.1f,
  757.                         17.5f - (7 - board->hovered_position[1]) * 5.0f,
  758.                         17.5f - board->hovered_position[0] * 5.0f,
  759.                         0.03f, 0.0f); // hovered tile
  760.  
  761.       // and the previous move source and target
  762.       if (options.want_lastmove && (board->move_count > 1) && (board->viewed_move > 0)
  763.           && IS_VALID_POSITION (board->moves[board->viewed_move].source)
  764.           && IS_VALID_POSITION (board->moves[board->viewed_move].target))
  765.       {
  766.          Scene_AddTile (scene, theme->lastmovesource_textureindex, 2.5f,
  767.                         17.5f - (7 - board->moves[board->viewed_move].source[1]) * 5.0f,
  768.                         17.5f - board->moves[board->viewed_move].source[0] * 5.0f,
  769.                         0.04f, 0.0f); // previous move source
  770.          Scene_AddTile (scene, theme->lastmovetarget_textureindex, 2.5f,
  771.                         17.5f - (7 - board->moves[board->viewed_move].target[1]) * 5.0f,
  772.                         17.5f - board->moves[board->viewed_move].target[0] * 5.0f,
  773.                         0.04f, 0.0f); // previous move target
  774.       }
  775.    }
  776.  
  777.    ////////////////////////////////////////////////////////////////////////////////////////////////
  778.    // now draw the 3D parts that are still in play
  779.  
  780.    // cycle through all the grid and place all static parts
  781.    for (line = 0; line < 8; line++)
  782.    {
  783.       for (column = 0; column < 8; column++)
  784.       {
  785.          boardslot = &currentmove->slots[line][column]; // quick access to grid slot
  786.  
  787.          // is there nothing on this grid slot ?
  788.          if (boardslot->part == PART_NONE)
  789.             continue; // then don't draw anything on it
  790.  
  791.          // is this part not animated ? i.e.:
  792.          // has no movement happened yet
  793.          // OR does the movement NOT land on this slot
  794.          //    AND is it NOT the tower concerned by a castle ?
  795.          if ((board->viewed_move == 0)
  796.              || (((line != currentmove->target[0]) || (column != currentmove->target[1]))
  797.                  && ((towupper (currentmove->pgntext[0]) != L'O')
  798.                      || (line != (currentmove->color == COLOR_WHITE ? 0 : 7)) || (column != (currentmove->target[1] == 2 ? 3 : 5)))))
  799.          {
  800.             // do we want the 3D models or the flat icons ?
  801.             // we do when EITHER we don't want flat icons OR the player playing the current move is looking downstraight
  802.             if (!want_flaticons || (current_pitch < MAX_PITCH_FOR_FLAT_ICONS))
  803.                Scene_AddPart (scene, boardslot->part, boardslot->color, 17.5f - (7 - column) * 5.0f, 17.5f - line * 5.0f, 0.04f, 0.0f, 0.0f);
  804.             else
  805.                Scene_AddTile (scene, theme->flattextures[boardslot->color][boardslot->part], 2.5f, 17.5f - (7 - column) * 5.0f, 17.5f - line * 5.0f, 0.05f, flaticons_yaw);
  806.          }
  807.       } // end for (column = 0; column < 8; column++)
  808.    } // end for (line = 0; line < 8; line++)
  809.  
  810.    // now do another pass and draw the part(s) that are currently moving
  811.    for (line = 0; line < 8; line++)
  812.    {
  813.       for (column = 0; column < 8; column++)
  814.       {
  815.          boardslot = &currentmove->slots[line][column]; // quick access to grid slot
  816.  
  817.          // is there nothing on this grid slot ?
  818.          if (boardslot->part == PART_NONE)
  819.             continue; // then don't draw anything on it
  820.  
  821.          // has a movement happened yet AND does it land on this slot ?
  822.          if ((board->viewed_move > 0)
  823.              && (line == currentmove->target[0]) && (column == currentmove->target[1]))
  824.          {
  825.             // do we want animations AND is it still time to play the animation ?
  826.             if (options.want_animations && (animation_endtime > current_time))
  827.             {
  828.                // get the source and target X and Y positions
  829.                source_x = 17.5f - (7 - currentmove->source[1]) * 5.0f;
  830.                source_y = 17.5f - currentmove->source[0] * 5.0f;
  831.                target_x = 17.5f - (7 - currentmove->target[1]) * 5.0f;
  832.                target_y = 17.5f - currentmove->target[0] * 5.0f;
  833.  
  834.                // compute the movement completion ratio between 0 and 1
  835.                movement_ratio = 1.0f - (animation_endtime - current_time) / ANIMATION_DURATION;
  836.  
  837.                // compute the current X an Y based on movement timing
  838.                current_x = source_x + (target_x - source_x) * movement_ratio;
  839.                current_y = source_y + (target_y - source_y) * movement_ratio;
  840.  
  841.                // do we want the 3D models or the flat icons ?
  842.                // we do when EITHER we don't want flat icons OR the player playing the current move is looking downstraight
  843.                if (!want_flaticons || (current_pitch < MAX_PITCH_FOR_FLAT_ICONS))
  844.                {
  845.                   // height is a sine positive, max height is proportional to travelled distance
  846.                   movement_diffco = abs (currentmove->target[1] - currentmove->source[1]);
  847.                   movement_diffli = abs (currentmove->target[0] - currentmove->source[0]);
  848.                   movement_maxheight = 0.5f + (float) movement_diffco + (float) movement_diffli;
  849.                   if (currentmove->part == PART_KNIGHT)
  850.                      movement_maxheight *= 2.0f; // knights jump high
  851.                   else if ((currentmove->part == PART_KING) && (movement_diffco == 2))
  852.                      movement_maxheight *= 5.0f; // kings jump VERY high when castling too
  853.                   else if (movement_maxheight > 5.0f)
  854.                      movement_maxheight = 5.0f; // all other parts just hover above the ground
  855.                   current_z = 0.04f + (float) sin (MATH_PI * movement_ratio) * movement_maxheight;
  856.  
  857.                   // make this part move realistically
  858.                   Scene_AddPart (scene, boardslot->part, boardslot->color, current_x, current_y, current_z, 0.0f, (boardslot->color == COLOR_BLACK ? -1 : 1) * min (current_z * 3.0f, 10.0f));
  859.                }
  860.                else
  861.                   Scene_AddTile (scene, theme->flattextures[boardslot->color][boardslot->part], 2.5f, current_x, current_y, 0.07f, flaticons_yaw);
  862.             }
  863.             else
  864.             {
  865.                // do we want the 3D models or the flat icons ?
  866.                // we do when EITHER we don't want flat icons OR the current player is looking downstraight
  867.                if (!want_flaticons || (current_pitch < MAX_PITCH_FOR_FLAT_ICONS))
  868.                   Scene_AddPart (scene, boardslot->part, boardslot->color, 17.5f - (7 - column) * 5.0f, 17.5f - line * 5.0f, 0.04f, 0.0f, 0.0f);
  869.                else
  870.                   Scene_AddTile (scene, theme->flattextures[boardslot->color][boardslot->part], 2.5f, 17.5f - (7 - column) * 5.0f, 17.5f - line * 5.0f, 0.05f, flaticons_yaw);
  871.             }
  872.  
  873.             // is it time to play a move sound ?
  874.             if ((sound_playtime != 0) && (sound_playtime < current_time))
  875.             {
  876.                // is the current player in checkmate, in check, in stalemate or is it a capture ? (to play the right sound)
  877.                // read as: was the last move an opponent's move AND did it put us to check ?
  878.                if (currentmove->is_check)
  879.                {
  880.                   Audio_PlaySound (SOUNDTYPE_MOVE, 17.5f - (7 - column) * 5.0f, 17.5f - line * 5.0f, 0.04f); // play the normal move sound
  881.  
  882.                   // is it a checkmate or a normal check ? (checkmate == check + stalemate)
  883.                   if (currentmove->is_stalemate)
  884.                      Audio_PlaySound (board->players[currentmove->color].type == PLAYER_HUMAN ? SOUNDTYPE_VICTORY : SOUNDTYPE_DEFEAT, 0.0f, 0.0f, 0.04f); // if so, play endgame sound at the center of the board
  885.                   else
  886.                      Audio_PlaySound (SOUNDTYPE_CHECK, 0.0f, 0.0f, 0.04f); // else play the check sound at the center of the board
  887.                }
  888.                else if (currentmove->is_stalemate)
  889.                {
  890.                   Audio_PlaySound (SOUNDTYPE_MOVE, 17.5f - (7 - column) * 5.0f, 17.5f - line * 5.0f, 0.04f); // play the normal move sound
  891.                   Audio_PlaySound (SOUNDTYPE_DEFEAT, 0.0f, 0.0f, 0.04f); // on stalemate, play defeat sound at the center of the board
  892.                }
  893.                else if (currentmove->has_captured)
  894.                   Audio_PlaySound (SOUNDTYPE_PIECETAKEN, 17.5f - (7 - column) * 5.0f, 17.5f - line * 5.0f, 0.04f); // on capture, play the capture sound
  895.                else
  896.                   Audio_PlaySound (SOUNDTYPE_MOVE, 17.5f - (7 - column) * 5.0f, 17.5f - line * 5.0f, 0.04f); // play the normal move sound
  897.  
  898.                sound_playtime = 0; // mark this animation as completed and sound played
  899.             }
  900.          }
  901.  
  902.          // else has a movement happened yet AND is this movement a castle AND is this the concerned tower ?
  903.          else if ((board->viewed_move > 0)
  904.                   && (towupper (currentmove->pgntext[0]) == L'O') // either O-O-O or O-O
  905.                   && (line == (currentmove->color == COLOR_WHITE ? 0 : 7)) && (column == (currentmove->target[1] == 2 ? 3 : 5)))
  906.          {
  907.             // do we want animations AND is it still time to play the animation ? (castling rooks move faster)
  908.             if (options.want_animations && (animation_endtime - (0.5f * ANIMATION_DURATION) > current_time))
  909.             {
  910.                // get the source and target X and Y positions
  911.                source_x = 17.5f - (7 - (currentmove->target[1] == 2 ? 0 : 7)) * 5.0f; // if king moves left, then rook starts on column a, else it starts on column h
  912.                source_y = 17.5f - line * 5.0f;
  913.                target_x = 17.5f - (7 - column) * 5.0f;
  914.                target_y = 17.5f - line * 5.0f;
  915.  
  916.                // compute the movement completion ratio between 0 and 1 (castling rooks move faster)
  917.                movement_ratio = min (1.0f, 1.0f - (animation_endtime - (0.5f * ANIMATION_DURATION) - current_time) / (0.5f * ANIMATION_DURATION));
  918.  
  919.                // compute the current X an Y based on movement timing
  920.                current_x = source_x + (target_x - source_x) * movement_ratio;
  921.                current_y = source_y + (target_y - source_y) * movement_ratio;
  922.  
  923.                // height is a sine positive, max height is proportional to travelled distance
  924.                movement_maxheight = 1.0f; // castling rook will barely hover above the ground
  925.                current_z = 0.04f + (float) sin (MATH_PI * movement_ratio) * movement_maxheight;
  926.  
  927.                // make this part move realistically - do we want the 3D models or the flat icons ?
  928.                // we do when EITHER we don't want flat icons OR the player playing the current move is looking downstraight
  929.                if (!want_flaticons || (current_pitch < MAX_PITCH_FOR_FLAT_ICONS))
  930.                   Scene_AddPart (scene, boardslot->part, boardslot->color, current_x, current_y, current_z, 0.0f, (boardslot->color == COLOR_BLACK ? -1 : 1) * min (current_z * 3.0f, 10.0f));
  931.                else
  932.                   Scene_AddTile (scene, theme->flattextures[boardslot->color][boardslot->part], 2.5f, current_x, current_y, 0.09f, flaticons_yaw);
  933.  
  934.                if (movement_ratio < 0.9f)
  935.                   rooksound_played = false; // if the rook is still moving, reset the "sound played" flag
  936.                else if (!rooksound_played)
  937.                {
  938.                   Audio_PlaySound (SOUNDTYPE_MOVE, 17.5f - (7 - column) * 5.0f, 17.5f - line * 5.0f, 0.04f); // when the rook has landed, play a move sound
  939.                   rooksound_played = true; // remember this is no longer to be done
  940.                }
  941.             }
  942.             else
  943.             {
  944.                // do we want the 3D models or the flat icons ?
  945.                // we do when EITHER we don't want flat icons OR the current player is looking downstraight
  946.                if (!want_flaticons || (current_pitch < MAX_PITCH_FOR_FLAT_ICONS))
  947.                   Scene_AddPart (scene, boardslot->part, boardslot->color, 17.5f - (7 - column) * 5.0f, 17.5f - line * 5.0f, 0.04f, 0.0f, 0.0f);
  948.                else
  949.                   Scene_AddTile (scene, theme->flattextures[boardslot->color][boardslot->part], 2.5f, 17.5f - (7 - column) * 5.0f, 17.5f - line * 5.0f, 0.05f, flaticons_yaw);
  950.             }
  951.          }
  952.       } // end for (column = 0; column < 8; column++)
  953.    } // end for (line = 0; line < 8; line++)
  954.  
  955.    ////////////////////////////////////////////////////////////////////////////////////
  956.    // now draw the sepia overlay if we're in history view mode or if the game is paused
  957.  
  958.    if (options.want_sepiafilter && (is_paused || ((board->move_count > 1) && (board->viewed_move != board->move_count - 1))))
  959.       scene->overlay_spriteindex = sepia_spriteindex; // use the sepia filter
  960.    else
  961.       scene->overlay_spriteindex = -1; // else use natural colors
  962.  
  963.    ////////////////////////////////////////////////////////////////////////////////////////////////
  964.    // now draw the move comment text
  965.  
  966.    // does the move we are viewing have a comment ? if so, copy it, else leave it clear. Also if we're online, display a help text
  967.    if ((currentmove->comment != NULL) && (currentmove->comment[0] != 0))
  968.       Scene_SetText (&scene->gui.comment_text, 53.3f, 0.5f, 93.0f, ALIGN_CENTER, ALIGN_TOP, ALIGN_LEFT, chat_fontindex, RGBA_TO_RGBACOLOR (255, 255, 255, 191), 999999.0f, false, currentmove->comment);
  969.    else if ((network_player != NULL) && network_player->is_logged_in && !network_player->is_in_game)
  970.       Scene_SetText (&scene->gui.comment_text, 53.3f, 0.5f, 93.0f, ALIGN_CENTER, ALIGN_TOP, ALIGN_LEFT, chat_fontindex, RGBA_TO_RGBACOLOR (255, 255, 255, 191), 999999.0f, false, connected_comment);
  971.    else if (RGBACOLOR_ALPHA (scene->gui.comment_text.color) >= 128) // HACK: don't clear if a dimmed hint text is already here
  972.       scene->gui.comment_text.is_displayed = false; // else clear comment text
  973.  
  974.    ////////////////////////////////////////////////////////////////////////////////////////////////
  975.    // now draw the game clock
  976.  
  977.    // do we want to print the game clock ?
  978.    if (options.want_clock && (board->move_count > 1) && (board->game_state == STATE_PLAYING))
  979.    {
  980.       network_player = Player_FindByType (PLAYER_INTERNET); // quick access to network player
  981.  
  982.       // are we in Internet play ? if so, count time down, else count it up
  983.       if ((network_player != NULL) && network_player->is_in_game)
  984.          seconds = Player_GetCurrent ()->remaining_seconds - (int) (current_time - board->lastmove_time); // total seconds first
  985.       else
  986.          seconds = (int) (current_time - stoppage_time - board->lastmove_time); // total seconds first, take pauses in account
  987.  
  988.       minutes = seconds / 60; // minutes
  989.       seconds -= 60 * minutes; // remaining seconds
  990.  
  991.       Scene_SetText (&the_scene.gui.clock_text, 99.0f, 66.6f, -1, ALIGN_RIGHT, ALIGN_CENTER, ALIGN_RIGHT, players_fontindex, RGBACOLOR_SETALPHA (options.clock_color, 0x7f), 999999.0f, false, L"%02d:%02d  ", minutes, seconds); // note: last space is alt+255
  992.    }
  993.    else
  994.       scene->gui.clock_text.is_displayed = false;
  995.  
  996.    ////////////////////////////////////////////////////////////////////////////////////////////////
  997.    // now draw the turn text
  998.  
  999.    // do we want to print the player's turn AND has the game not ended yet ? if so, copy it, else leave it clear
  1000.    if (options.want_turn && (board->game_state == STATE_PLAYING))
  1001.    {
  1002.       if (Board_ColorToMove (board) == COLOR_BLACK)
  1003.       {
  1004.          if (the_scene.gui.turn_text.color != 0x000000C0)
  1005.             Scene_SetText (&the_scene.gui.turn_text, 99.0f, 100.0f, -1, ALIGN_RIGHT, ALIGN_BOTTOM, ALIGN_RIGHT, players_fontindex, 0x000000C0, 999999.0f, true, LOCALIZE (L"BlackMoves"));
  1006.       }
  1007.       else
  1008.       {
  1009.          if (the_scene.gui.turn_text.color != 0xFFFFFF80)
  1010.             Scene_SetText (&the_scene.gui.turn_text, 99.0f, 100.0f, -1, ALIGN_RIGHT, ALIGN_BOTTOM, ALIGN_RIGHT, players_fontindex, 0xFFFFFF80, 999999.0f, true, LOCALIZE (L"WhiteMoves"));
  1011.       }
  1012.    }
  1013.    else
  1014.       scene->gui.turn_text.is_displayed = false;
  1015.  
  1016.    ////////////////////////////////////////////////////////////////////////////////////////////////
  1017.    // now draw the game history text
  1018.  
  1019.    // do we want to display the game history ? if so, display the game history text in PGN
  1020.    if (options.want_history && (board->move_count > 1))
  1021.    {
  1022.       // first off, see where we start (for long games, we don't want to display EVERYTHING...
  1023.       if (board->viewed_move > 30)
  1024.          start_index = board->viewed_move - 30; // display 30 moves maximum
  1025.       else
  1026.          start_index = 1;
  1027.  
  1028.       // allocate an arbitrary length history text string buffer (assume each move can't be longer than 15 characters)
  1029.       historytext_size = 15 * (1 + (board->viewed_move + 1) - start_index);
  1030.       history_text = (wchar_t *) SAFE_malloc (historytext_size, sizeof (wchar_t), false);
  1031.       history_text[0] = 0; // and reset it
  1032.  
  1033.       // now for each move we want to display...
  1034.       for (move_index = start_index; move_index <= board->viewed_move; move_index++)
  1035.       {
  1036.          length = wcslen (history_text); // get current text length
  1037.  
  1038.          // every move pair, append move pair number
  1039.          if (move_index % 2 == 1)
  1040.             swprintf_s (&history_text[length], historytext_size - length, L"%d.   ", 1 + move_index / 2);
  1041.  
  1042.          // append move text
  1043.          wcscat_s (history_text, historytext_size, board->moves[move_index].pgntext);
  1044.          wcscat_s (history_text, historytext_size, L"   ");
  1045.  
  1046.          // every odd move, drop a newline
  1047.          if (move_index % 2 == 0)
  1048.             wcscat_s (history_text, historytext_size, L"\n");
  1049.       }
  1050.  
  1051.       // add 50% alpha to game history color and transmit it to 3D engine
  1052.       Scene_SetText (&the_scene.gui.history_text, 100.0f, 50.0f, -1, ALIGN_RIGHT, ALIGN_BOTTOM, ALIGN_LEFT, chat_fontindex, RGBACOLOR_SETALPHA (options.history_color, 0x7f), 999999.0f, false, history_text);
  1053.       SAFE_free ((void **) &history_text);
  1054.    }
  1055.    else
  1056.       scene->gui.history_text.is_displayed = false; // if we don't need to display the game history, free the buffer
  1057.  
  1058.    ////////////////////////////////////////////////////////////////////////////////////////////////
  1059.    // now draw the chat area
  1060.  
  1061.    // is a valid chatter channel selected ?
  1062.    if ((selected_chatterchannel != NULL) && (chatterchannel_count > 0) && ((local_player = Player_FindByType (PLAYER_HUMAN)) != NULL))
  1063.    {
  1064.       // set the chatter's name
  1065.       wcscpy_s (scene->gui.entered_ccreply.nickname, WCHAR_SIZEOF (scene->gui.entered_ccreply.nickname), local_player->name);
  1066.  
  1067.       // correct or update the channel name and color
  1068.       if (selected_chatterchannel->theme[0] != 0)
  1069.          wcscpy_s (scene->gui.entered_ccreply.channelname, WCHAR_SIZEOF (scene->gui.entered_ccreply.channelname), selected_chatterchannel->theme);
  1070.       else
  1071.          swprintf_s (scene->gui.entered_ccreply.channelname, WCHAR_SIZEOF (scene->gui.entered_ccreply.channelname), L"%s %d", LOCALIZE (L"ChatterChannels_ColumnChannelNumber"), selected_chatterchannel->id);
  1072.       scene->gui.entered_ccreply.color = RGBACOLOR_FULLALPHA (selected_chatterchannel->color); // full bright for entering text
  1073.    }
  1074.  
  1075.    // display parts pick line in position setup mode only
  1076.    scene->gui.is_partspick_displayed = (board->game_state == STATE_SETUPPOSITION ? true : false);
  1077.  
  1078.    //////////////////////////
  1079.    // error and notifications
  1080.  
  1081.    // is the current player a computer AND are we playing a game right now
  1082.    // AND has the computer been thinking for more than 5 seconds AND is there no "thinking" text yet ?
  1083.    if ((board->players[Board_ColorToMove (board)].type == PLAYER_COMPUTER) && (board->game_state == STATE_PLAYING)
  1084.        && (board->lastmove_time + 5.0f < current_time) && !scene->gui.central_text.is_displayed)
  1085.    {
  1086.       Scene_SetText (&the_scene.gui.central_text, 50.0f, 40.0f, -1, ALIGN_CENTER, ALIGN_CENTER, ALIGN_CENTER, centermsg_fontindex, RGBA_TO_RGBACOLOR (255, 255, 255, 191),
  1087.                      999999.0f, true, LOCALIZE (L"Thinking")); // if so, display the "thinking" phrase in the middle of the screen
  1088.       the_scene.gui.want_spinwheel = true; // start spinning wheel
  1089.    }
  1090.  
  1091.    // is there a network player AND is our socket gone AWOL ?
  1092.    else if ((network_player != NULL) && (network_player->our_socket == INVALID_SOCKET))
  1093.    {
  1094.       // is there nothing in the center of the screen yet ?
  1095.       if (!the_scene.gui.central_text.is_displayed)
  1096.          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),
  1097.                         999999.0f, true, LOCALIZE (L"Error_ConnectionToChessServerLost")); // display "error" in the middle of the screen
  1098.       the_scene.overlay_spriteindex = sepia_spriteindex; // display sepia filter if no connection
  1099.    }
  1100.  
  1101.    // is the game paused ?
  1102.    if (is_paused)
  1103.       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, 255),
  1104.                      1.0f, false, LOCALIZE (L"Paused")); // if so, display the "paused" phrase in the middle of the screen
  1105.  
  1106.    return; // finished, scene is updated
  1107. }
  1108.  
  1109.  
  1110. void Scene_AddCCReply (scene_t *scene, wchar_t *nickname, wchar_t *channelname, unsigned long color_rgbx, wchar_t *fmt, ...)
  1111. {
  1112.    // helper function to add a CC reply on display
  1113.  
  1114.    static wchar_t message[4096];
  1115.    ccreply_t re;
  1116.    va_list argptr;
  1117.  
  1118.    // concatenate all the arguments in one string
  1119.    va_start (argptr, fmt);
  1120.    _vsnwprintf_s (message, WCHAR_SIZEOF (message), _TRUNCATE, fmt, argptr);
  1121.    va_end (argptr);
  1122.  
  1123.    // now put the text in place
  1124.    memset (&re, 0, sizeof (re)); // reset the structure we're about to fill
  1125.  
  1126.    wcscpy_s (re.nickname, WCHAR_SIZEOF (re.nickname), nickname); // copy nickname
  1127.    wcscpy_s (re.channelname, WCHAR_SIZEOF (re.channelname), channelname); // copy channel name
  1128.  
  1129.    re.text_length = wcslen (message); // get text length
  1130.    re.text = (wchar_t *) SAFE_malloc (re.text_length + 1, sizeof (wchar_t), false); // allocate text space (include null terminator)
  1131.    wcscpy_s (re.text, re.text_length + 1, message); // get the text
  1132.  
  1133.    re.color = RGBACOLOR_SETALPHA (color_rgbx, 0xC0); // copy reply color and force a slightly transparent alpha
  1134.    re.arrival_time = current_time; // save CC reply arrival time
  1135.  
  1136.    // reallocate CC history array to hold now one reply more
  1137.    the_scene.gui.cchistory = (ccreply_t *) SAFE_realloc (the_scene.gui.cchistory, the_scene.gui.cchistory_count, the_scene.gui.cchistory_count + 1, sizeof (ccreply_t), false);
  1138.    memcpy (&the_scene.gui.cchistory[the_scene.gui.cchistory_count], &re, sizeof (ccreply_t));
  1139.    the_scene.gui.cchistory_count++; // CC history holds now one reply more
  1140.  
  1141.    return; // finished, announcement text is set
  1142. }
  1143.  
  1144.  
  1145. void Scene_AddAnnouncement (scene_t *scene, wchar_t *fmt, ...)
  1146. {
  1147.    // helper function to set the announcement (red) text on display
  1148.  
  1149.    static wchar_t message[4096];
  1150.    ccreply_t re;
  1151.    va_list argptr;
  1152.  
  1153.    // concatenate all the arguments in one string
  1154.    va_start (argptr, fmt);
  1155.    _vsnwprintf_s (message, WCHAR_SIZEOF (message), _TRUNCATE, fmt, argptr);
  1156.    va_end (argptr);
  1157.  
  1158.    // now put the text in place
  1159.    memset (&re, 0, sizeof (re)); // reset the structure we're about to fill
  1160.  
  1161.    re.text_length = wcslen (message); // get text length
  1162.    re.text = (wchar_t *) SAFE_malloc (re.text_length + 1, sizeof (wchar_t), false); // allocate text space (include null terminator)
  1163.    wcscpy_s (re.text, re.text_length + 1, message); // get the text
  1164.  
  1165.    wcscpy_s (re.channelname, WCHAR_SIZEOF (re.channelname), LOCALIZE (L"ImportantMessage"));
  1166.    re.color = RGBA_TO_RGBACOLOR (192, 0, 0, 0xE0); // fair red, a bit more opaque than normal messages
  1167.    re.arrival_time = current_time; // save announcement arrival time
  1168.  
  1169.    // reallocate CC history array to hold now one reply more
  1170.    the_scene.gui.cchistory = (ccreply_t *) SAFE_realloc (the_scene.gui.cchistory, the_scene.gui.cchistory_count, the_scene.gui.cchistory_count + 1, sizeof (ccreply_t), false);
  1171.    memcpy (&the_scene.gui.cchistory[the_scene.gui.cchistory_count], &re, sizeof (ccreply_t));
  1172.    the_scene.gui.cchistory_count++; // CC history holds now one reply more
  1173.  
  1174.    return; // finished, announcement text is set
  1175. }
  1176.  
  1177.  
  1178. void Scene_SetButton (guibutton_t *button, float left, float top, float width, float height, int sprite_index, wchar_t *fmt, ...)
  1179. {
  1180.    // helper function to set up a GUI button
  1181.  
  1182.    va_list argptr;
  1183.  
  1184.    button->left = left;
  1185.    button->top = top;
  1186.    button->width = width;
  1187.    button->height = height;
  1188.    button->sprite_index = sprite_index;
  1189.  
  1190.    // concatenate all the arguments in one string
  1191.    if (fmt != NULL)
  1192.    {
  1193.       va_start (argptr, fmt);
  1194.       _vsnwprintf_s (button->text, WCHAR_SIZEOF (button->text), _TRUNCATE, fmt, argptr);
  1195.       va_end (argptr);
  1196.    }
  1197.    else
  1198.       button->text[0] = 0; // (unless no text is specified for this button)
  1199.  
  1200.    return; // finished, button is set
  1201. }
  1202.  
  1203.  
  1204. void Scene_SetText (guitext_t *text, float xpos_percent, float ypos_percent, float maxwidth_percent, int horizontal_align, int vertical_align, int text_align, int font_index, unsigned long color_rgba, float duration, bool want_fade, wchar_t *fmt, ...)
  1205. {
  1206.    // helper function to set some text on display
  1207.  
  1208.    static wchar_t message[4096];
  1209.    va_list argptr;
  1210.    int length;
  1211.  
  1212.    // concatenate all the arguments in one string
  1213.    va_start (argptr, fmt);
  1214.    _vsnwprintf_s (message, WCHAR_SIZEOF (message), _TRUNCATE, fmt, argptr);
  1215.    va_end (argptr);
  1216.  
  1217.    text->xpos_percent = xpos_percent; // save text's X position, in percents from left to right
  1218.    text->ypos_percent = ypos_percent; // save text's Y position, in percents from top to bottom
  1219.    text->maxwidth_percent = maxwidth_percent; // save text's max width before word wrapping
  1220.    text->horizontal_align = horizontal_align; // save text's horizontal alignment regarding the X position
  1221.    text->vertical_align = vertical_align; // save text's vertical alignment regarding the Y position
  1222.    text->text_align = text_align; // save text's horizontal alignment inside the bounding rectangle
  1223.    text->font_index = font_index; // save the index of the font with which to display this text
  1224.    text->color = color_rgba; // text's color, in RGBA
  1225.  
  1226.    // now put the text in place
  1227.    length = wcslen (message) + 1; // include null terminator
  1228.    text->buffer = (wchar_t *) SAFE_realloc (text->buffer, text->buffer_size, length, sizeof (wchar_t), false);
  1229.    wcscpy_s (text->buffer, length, message); // copy message text
  1230.    text->buffer_size = length; // and save buffer length
  1231.  
  1232.    text->appear_time = current_time; // save text arrival time
  1233.    text->disappear_time = current_time + duration; // make it last duration seconds
  1234.    text->want_fade = want_fade; // remember if text needs to be faded in and out
  1235.  
  1236.    // mark this text for display
  1237.    text->is_displayed = true;
  1238.  
  1239.    return; // finished, text is set
  1240. }
  1241.  
  1242.  
  1243. static void Scene_AddPart (scene_t *scene, int part_type, int part_color, float pos_x, float pos_y, float pos_z, float turn_yaw, float pitch)
  1244. {
  1245.    // helper function to add a specified part of the specified color to the rendered scene
  1246.  
  1247.    sceneobject_t *object;
  1248.    partcolor_t *partcolor;
  1249.  
  1250.    // reallocate space to hold one object more and blank it out
  1251.    scene->objects = (sceneobject_t *) SAFE_realloc (scene->objects, scene->object_count, scene->object_count + 1, sizeof (sceneobject_t), true);
  1252.  
  1253.    object = &scene->objects[scene->object_count]; // quick access to object
  1254.  
  1255.    object->mesh_index = theme->part_meshes[part_type]; // retrieve object mesh
  1256.    object->simpleshadow_size = simpleshadow_sizes[part_type]; // retrieve simple shadow size according to part type
  1257.    object->scale = 1.0f; // scale at 1 so far
  1258.  
  1259.    // set object texture and material
  1260.    partcolor = &theme->part_colors[part_color]; // quick access to part color struct
  1261.    object->texture_index = partcolor->texture;
  1262.    object->material_index = partcolor->material;
  1263.  
  1264.    // figure out object position on board
  1265.    object->x = pos_x;
  1266.    object->y = pos_y;
  1267.    object->z = pos_z;
  1268.  
  1269.    // turn a color's all parts' yaw 180 degrees so as both sides face each other
  1270.    if (part_color == COLOR_WHITE)
  1271.       object->yaw = 180.0f;
  1272.    else
  1273.       object->yaw = 0.0f;
  1274.  
  1275.    // and add the final turn pitch and yaw
  1276.    object->pitch = pitch;
  1277.    object->yaw = WrapAngle (object->yaw + turn_yaw);
  1278.  
  1279.    scene->object_count++; // array holds now one object more
  1280.    return; // finished
  1281. }
  1282.  
  1283.  
  1284. static void Scene_AddTile (scene_t *scene, int texture_index, float scale, float pos_x, float pos_y, float pos_z, float turn_yaw)
  1285. {
  1286.    // helper function to add a specified part of the specified color to the rendered scene
  1287.  
  1288.    sceneobject_t *object;
  1289.  
  1290.    // reallocate space to hold one object more and blank it out
  1291.    scene->objects = (sceneobject_t *) SAFE_realloc (scene->objects, scene->object_count, scene->object_count + 1, sizeof (sceneobject_t), true);
  1292.  
  1293.    object = &scene->objects[scene->object_count]; // quick access to object
  1294.  
  1295.    // save object data
  1296.    object->mesh_index = -1; // objects that have -1 as mesh index are tiles
  1297.    object->texture_index = texture_index;
  1298.    object->material_index = -1; // objects will use the default material
  1299.  
  1300.    // figure out object position on board
  1301.    object->x = pos_x;
  1302.    object->y = pos_y;
  1303.    object->z = pos_z;
  1304.    object->scale = scale;
  1305.  
  1306.    // turn tile as requested
  1307.    object->yaw = turn_yaw;
  1308.  
  1309.    scene->object_count++; // array holds now one object more
  1310.  
  1311.    return; // finished
  1312. }
  1313.