Improve game tab

6 files changed, 140 insertions, 94 deletions

diff --git a/src/game_tab/left_panel/GameTabLeftPanel.cpp b/src/game_tab/left_panel/GameTabLeftPanel.cpp
index 50919c0..25ded2c 100644
--- a/src/game_tab/left_panel/GameTabLeftPanel.cpp
+++ b/src/game_tab/left_panel/GameTabLeftPanel.cpp
@@ -21,6 +21,7 @@ GameTabLeftPanel::GameTabLeftPanel(wxFrame *parent, std::shared_ptr<Game> game)
 
   // Configure FEN field
   fen_text_field->SetFont(wxFont(*wxNORMAL_FONT).Bold().Larger());
+  last_move=game->GetCurrentMove();
 
   // Bind events:
   Bind(PLAY_MOVE_EVENT, &GameTabLeftPanel::OnPlay, this, wxID_ANY);
@@ -31,11 +32,11 @@ GameTabLeftPanel::GameTabLeftPanel(wxFrame *parent, std::shared_ptr<Game> game)
   Bind(wxEVT_KEY_DOWN, [p=this](wxKeyEvent &e){
     if(e.GetKeyCode() == WXK_RIGHT){
       p->game->Next();
-      p->Notify(true,false);
+      p->Notify();
       p->repeat=true;
     } else if(e.GetKeyCode() == WXK_LEFT){
       p->game->Previous();
-      p->Notify(true,true);
+      p->Notify();
       p->repeat=true;
     }
     // Notify other classes
@@ -46,10 +47,10 @@ GameTabLeftPanel::GameTabLeftPanel(wxFrame *parent, std::shared_ptr<Game> game)
   Bind(wxEVT_MOUSEWHEEL, [p=this](wxMouseEvent& e){
     if(e.GetWheelRotation()<0){
       p->game->Next();
-      p->Notify(true,false);
+      p->Notify();
     }else {
       p->game->Previous();
-      p->Notify(true,true);
+      p->Notify();
     }
     // Notify other classes
     wxCommandEvent event(GAME_CHANGE, p->GetId());
@@ -67,54 +68,53 @@ void GameTabLeftPanel::OnPlay(wxCommandEvent &event) {
     event.SetEventObject(this);
     ProcessEvent(event);
   }
-  // Refresh board canvas:
-  Notify();
+  Notify(true); // Redraw event is move failed! Otherwise piece not resets to it initial position after dragging
 }
 
-void GameTabLeftPanel::Notify(bool animate, bool backward) {
+void GameTabLeftPanel::Notify(bool skip_animation) {
   // Update fen and captures
   std::string fen = game->GetFen();
   std::map<char, std::uint8_t> captures;
+  bool animate=false;
   HalfMove *m = game->GetCurrentMove();
-  if (m != nullptr) {
+  std::string src,dst;
+  // Update capture and check if we should to animations during moves change:
+  if (m){
     captures = m->GetLineCaptures();
+    if(m->HasParent(last_move)){
+      m->GetAbsoluteMove(src,dst);
+      animate=true;
+    }else if(m->HasChild(last_move)){
+      // Accessing last_move here is safe since it is still
+      // in the tree of moves (since HasChild found it so not deleted)
+      last_move->GetAbsoluteMove(dst,src);
+      animate=true;
+    }
+  } else if(game->GetNextMove()){ // First move animation
+    HalfMove *next=game->GetNextMove();
+    if(next==last_move){
+      game->GetNextMove()->GetAbsoluteMove(dst,src);
+      animate=true;
+    }
   }
 
   // Update board canvas:
-  if(!animate){
-    if(m){
-      last_absolute_move=m->GetAbsoluteMove();
-    }
-    board_canvas->SetupBoard(chessarbiter::FENParser::Parse(fen).board,
-                            game->IsBlackToPlay(), captures,
-                            game->GetTag("White"),game->GetTag("Black"));
+  GameState gs;
+  gs.board=chessarbiter::FENParser::Parse(fen).board;
+  gs.is_black_turn=game->IsBlackToPlay();
+  gs.captures=captures;
+  gs.white=game->GetTag("White");
+  gs.black=game->GetTag("Black");
+  gs.mat_black=game->IsCheckmate(true);
+  gs.mat_white=game->IsCheckmate(false);
+  if(skip_animation || !animate){
+    board_canvas->SetupBoard(gs);
   }
   else{
-    if(backward && last_absolute_move.size()>0){
-        std::string dst=last_absolute_move.substr(0,2);
-        std::string src=last_absolute_move.substr(2,2);
-        board_canvas->Animate(chessarbiter::FENParser::Parse(fen).board,
-        game->IsBlackToPlay(), captures,src,dst,repeat);
-        if(m){
-          last_absolute_move=m->GetAbsoluteMove();
-        }
-    }
-    else if(!backward && m){
-      std::string new_absolute_move=m->GetAbsoluteMove();
-      if(last_absolute_move!=new_absolute_move){
-        last_absolute_move=new_absolute_move;
-        std::string src=last_absolute_move.substr(0,2);
-        std::string dst=last_absolute_move.substr(2,2);
-        board_canvas->Animate(chessarbiter::FENParser::Parse(fen).board,
-                            game->IsBlackToPlay(), captures,src,dst,repeat);
-      }
-    }
-    // If m undefined
-    if(!m){
-      last_absolute_move="";
-    }
+    board_canvas->Animate(gs, src,dst,repeat);
   }
-
+  // Update last move
+  last_move=m;
   // Update fen field:
   fen_text_field->SetValue(game->GetFen());
 }
diff --git a/src/game_tab/left_panel/GameTabLeftPanel.hpp b/src/game_tab/left_panel/GameTabLeftPanel.hpp
index b22d6fc..56297d8 100644
--- a/src/game_tab/left_panel/GameTabLeftPanel.hpp
+++ b/src/game_tab/left_panel/GameTabLeftPanel.hpp
@@ -11,12 +11,12 @@ wxDECLARE_EVENT(GAME_CHANGE, wxCommandEvent);
 class GameTabLeftPanel : public TabGameLeftPanel {
   std::shared_ptr<Game> game;
   BoardCanvas *board_canvas;
-  std::string last_absolute_move;
   bool repeat;
+  HalfMove *last_move;
   
 public:
   GameTabLeftPanel(wxFrame *parent, std::shared_ptr<Game> game);
-  void Notify(bool animate=false,bool backward=false);
+  void Notify(bool skip_animation=false);
   void OnPlay(wxCommandEvent &event);
   void OnGotoMove(wxCommandEvent &event);
   void OnRefreshBoard(wxCommandEvent &event);
diff --git a/src/game_tab/left_panel/board/BoardCanvas.cpp b/src/game_tab/left_panel/board/BoardCanvas.cpp
index 1a85176..f6846f1 100644
--- a/src/game_tab/left_panel/board/BoardCanvas.cpp
+++ b/src/game_tab/left_panel/board/BoardCanvas.cpp
@@ -3,25 +3,50 @@
 wxDEFINE_EVENT(PLAY_MOVE_EVENT, wxCommandEvent);
 
 BoardCanvas::BoardCanvas(wxFrame *parent)
-    : wxPanel(parent), black_side(false), is_black_turn(true), frozen(false),
+    : wxPanel(parent), black_side(false), frozen(false),
       lock_square_size(false), t(new Theme()), t_captures(new Theme()) {
-  board = "rnbqkbnrpppppppp                                PPPPPPPPRNBQKBNR";
   is_dragging = false;
   valid_drag = false;
+  // Init animation data
+  adata.duration=200;
+  adata.duration_fast=80;
+  adata.fps=30;
+  adata.buffer=new wxBitmap(500,500,32);
   adata.reuseBuffer=false;
   adata.buffer=nullptr;
-  t_captures->ResizePieces(t->GetPiecesSizes() * CAPTURE_FACTOR);
+  // Init game state
+  gs.is_black_turn=false;
+  gs.board = "rnbqkbnrpppppppp                                PPPPPPPPRNBQKBNR";
+  gs.mat_black=false;
+  gs.mat_white=false;
+  // Init clocks
   SetClockTime(-1, -1, -1, false);
   SetClockTime(-1, -1, -1, true);
+  // Init capture pieces
+  t_captures->ResizePieces(t->GetPiecesSizes() * CAPTURE_FACTOR);
+  // Load preferences
   ApplyPreferences();
   // The following should be called when using an EVT_PAINT handler
   SetBackgroundStyle(wxBG_STYLE_PAINT);
-  adata.duration=200;
-  adata.duration_fast=80;
-  adata.fps=30;
   // Let GameTableLeftPanel process keyboard events:
   Bind(wxEVT_KEY_DOWN, [p=this](wxKeyEvent &e){e.ResumePropagation(1);e.Skip();});
   Bind(wxEVT_KEY_UP, [p=this](wxKeyEvent &e){e.ResumePropagation(1);e.Skip();});
+  Bind(wxEVT_PAINT, &BoardCanvas::OnPaint, this);
+  Bind(wxEVT_SIZE, &BoardCanvas::OnResize, this);
+  // Mouse events:
+  Bind(wxEVT_MOTION, &BoardCanvas::MouseEvent, this);
+  Bind(wxEVT_LEFT_DOWN, &BoardCanvas::MouseEvent, this);
+  Bind(wxEVT_LEFT_UP, &BoardCanvas::MouseEvent, this);
+}
+
+void BoardCanvas::OnResize(wxSizeEvent &e){
+  wxSize size=e.GetSize();
+  if(size.x>100 && size.y>100){
+    // Setup buffer (use for animations)
+    if(adata.buffer!=nullptr)
+      free(adata.buffer);
+    adata.buffer=new wxBitmap(size.x,size.y,32);
+  }
 }
 
 BoardCanvas::~BoardCanvas() {
@@ -43,7 +68,6 @@ BoardCanvas::BoardCanvas(wxFrame *parent, std::uint32_t square_width,
 void BoardCanvas::OnPaint(wxPaintEvent &event) {
   wxBufferedPaintDC dc(this);
   dc.SetBackground(*wxWHITE_BRUSH);
-  dc.Clear();
 
   if(!adata.reuseBuffer){
     // Setting up required attributes
@@ -56,12 +80,8 @@ void BoardCanvas::OnPaint(wxPaintEvent &event) {
       boardX = 0;
     if (boardY > canvas_size.y)
       boardY = 0;
-
-    // Setup buffer (later use for animations)
-    if(adata.buffer!=nullptr)
-      free(adata.buffer);
-    adata.buffer=new wxBitmap(canvas_size.x,canvas_size.y,32);
     wxMemoryDC memDC(*adata.buffer);
+    memDC.Clear();
     DrawBoard(memDC);
     dc.Blit(0,0,canvas_size.x,canvas_size.y,(wxDC*)&memDC,0,0);
   }
@@ -73,7 +93,7 @@ void BoardCanvas::OnPaint(wxPaintEvent &event) {
     dc.DrawBitmap(*t->Get(adata.piece_moved), 
     adata.src.x + adata.frame*(adata.transVect.x/adata.frames), 
     adata.src.y + adata.frame*(adata.transVect.y/adata.frames), false);
-    // end drawing
+    // End drawing
     adata.frame++;
   }
 }
@@ -100,24 +120,26 @@ void BoardCanvas::ApplyPreferences() {
   Refresh();
 }
 
-void BoardCanvas::SetupBoard(std::string board, bool is_black_turn,
-                             std::map<char, std::uint8_t> captures,
-                             std::string white_player, std::string black_player) {
-  this->board = board;
-  this->is_black_turn = is_black_turn;
-  this->captures = captures;
-  this->white_player=white_player;
-  this->black_player=black_player;
+void BoardCanvas::SetupBoard(const GameState &new_gs) {
+  gs.board = new_gs.board;
+  gs.is_black_turn = new_gs.is_black_turn;
+  gs.captures = new_gs.captures;
+  gs.white=new_gs.white;
+  gs.black=new_gs.black;
+  gs.mat_white=new_gs.mat_white;
+  gs.mat_black=new_gs.mat_black;
+  gs.black_time=new_gs.black_time;
+  gs.white_time=new_gs.white_time;
   Refresh();
 }
 
-void BoardCanvas::Animate(const std::string &board, bool is_black_turn, std::map<char, std::uint8_t> captures, std::string src, std::string dst,bool faster){
+void BoardCanvas::Animate(const GameState &new_gs, std::string src, std::string dst, bool faster){
   std::uint8_t pfile = src[0]-'a';
   std::uint8_t prank = src[1]-'1';
-  adata.piece_moved = this->board[pfile + 8 * (7-prank)]; // Piece to move
+  adata.piece_moved = gs.board[pfile + 8 * (7-prank)]; // Piece to move
   
   // Now remove the piece that will be moved
-  this->board[pfile + 8 * (7-prank)]=' ';
+  gs.board[pfile + 8 * (7-prank)]=' ';
   wxMemoryDC memDC(*adata.buffer);
   DrawBoard(memDC);
 
@@ -164,7 +186,7 @@ void BoardCanvas::Animate(const std::string &board, bool is_black_turn, std::map
   }
   adata.duration=faster ? duration_backup : duration_backup;
   adata.reuseBuffer=false;
-  SetupBoard(board, is_black_turn, captures,white_player,black_player);
+  SetupBoard(new_gs);
 }
 
 void BoardCanvas::DrawBoard(wxDC &dc) {
@@ -217,7 +239,7 @@ void BoardCanvas::DrawBoard(wxDC &dc) {
       }
       std::uint32_t px = x + centrer_offset;
       std::uint32_t py = y + centrer_offset;
-      char piece = board[(7 - pfile) + 8 * prank];
+      char piece =  gs.board[(7 - pfile) + 8 * prank];
       if (is_dragging && (7 - pfile) == active_square.x &&
           (7 - prank) == active_square.y) {
         dp = piece;
@@ -228,6 +250,8 @@ void BoardCanvas::DrawBoard(wxDC &dc) {
       }
       if (piece != ' ') {
         dc.DrawBitmap(*t->Get(piece), px, py, false);
+        if((piece == 'k' && gs.mat_black) || (piece == 'K' && gs.mat_white))
+          dc.DrawBitmap(*t->Get('#'), x+square_width/2+centrer_offset, y+centrer_offset, false);
       }
     }
   }
@@ -236,7 +260,7 @@ void BoardCanvas::DrawBoard(wxDC &dc) {
   dc.SetPen(wxPen(*wxBLACK, 3));
   std::uint32_t badgeY = boardY;
   std::uint32_t badgeWidth = square_width / 2;
-  if (is_black_turn) {
+  if (gs.is_black_turn) {
     dc.SetBrush(*wxBLACK_BRUSH);
     if (black_side) {
       badgeY = boardY + (8 * square_width) - badgeWidth;
@@ -265,15 +289,15 @@ void BoardCanvas::DrawBoard(wxDC &dc) {
     offsetYPlayerName = offsetY+captures_size;
   }
   for (char p : {'P', 'N', 'B', 'R', 'Q'}) {
-    if (captures.find(p) != captures.end()) {
-      for (std::uint8_t i = 0; i < captures[p]; i++) {
+    if (gs.captures.find(p) != gs.captures.end()) {
+      for (std::uint8_t i = 0; i < gs.captures[p]; i++) {
         dc.DrawBitmap(*t_captures->Get(p), boardX + offsetX, boardY + offsetY);
         offsetX += captures_size / 2;
       }
       offsetX += captures_size / 2;
     }
   }
-  dc.DrawText(wxString(black_player),boardX,boardY + offsetYPlayerName);
+  dc.DrawText(wxString(gs.black),boardX,boardY + offsetYPlayerName);
   // Black (white's captures):
   offsetX = 0;
   if (black_side) {
@@ -284,15 +308,15 @@ void BoardCanvas::DrawBoard(wxDC &dc) {
     offsetYPlayerName = offsetY+captures_size;
   }
   for (char p : {'p', 'n', 'b', 'r', 'q'}) {
-    if (captures.find(p) != captures.end()) {
-      for (std::uint8_t i = 0; i < captures[p]; i++) {
+    if (gs.captures.find(p) != gs.captures.end()) {
+      for (std::uint8_t i = 0; i < gs.captures[p]; i++) {
         dc.DrawBitmap(*t_captures->Get(p), boardX + offsetX, boardY + offsetY);
         offsetX += captures_size / 2;
       }
       offsetX += captures_size / 2;
     }
   }
-  dc.DrawText(wxString(white_player),boardX,boardY + offsetYPlayerName);
+  dc.DrawText(wxString(gs.white),boardX,boardY + offsetYPlayerName);
 
   // Draw dragging piece
   if (DrawDraggingPiece) {
@@ -306,9 +330,9 @@ void BoardCanvas::DrawBoard(wxDC &dc) {
   }
 
   // Draw Clocks
-  if (std::get<0>(black_time) >= 0) {
+  if (std::get<0>(gs.black_time) >= 0) {
     wxFont font = dc.GetFont();
-    ClockTime clock = black_side ? white_time : black_time;
+    ClockTime clock = black_side ? gs.white_time : gs.black_time;
     wxString time =
         wxString::Format("%ds", std::get<1>(clock), std::get<2>(clock));
     if (std::get<0>(clock) > 0) {
@@ -321,7 +345,7 @@ void BoardCanvas::DrawBoard(wxDC &dc) {
     dc.GetTextExtent(time, &width, &height);
     dc.DrawText(time,
                 wxPoint(boardX + square_width * 8 - width, boardY - height - numbers_size.y*2));
-    clock = black_side ? black_time : white_time;
+    clock = black_side ? gs.black_time : gs.white_time;
     time = wxString::Format("%ds", std::get<1>(clock), std::get<2>(clock));
     if (std::get<0>(clock) > 0) {
       time = wxString::Format("%d:%d", std::get<0>(clock), std::get<1>(clock));
@@ -359,6 +383,9 @@ void BoardCanvas::MouseEvent(wxMouseEvent &event) {
                              ((char)('a' + file)) + std::to_string(rank + 1);
           event.SetString(move);
           ProcessEvent(event);
+        } else {
+          // If square not valid just redraw (place piece back to its square)
+          Refresh();
         }
       }
       if (event.LeftDown()) {
@@ -370,7 +397,7 @@ void BoardCanvas::MouseEvent(wxMouseEvent &event) {
         if (IsCurrentSquareValid) {
           active_square.x = file;
           active_square.y = rank;
-          if (board[(7 - rank) * 8 + file] != ' ') {
+          if (gs.board[(7 - rank) * 8 + file] != ' ') {
             wxLogDebug("Drag start on square (%d,%d)", file, rank);
             valid_drag = true;
           }
@@ -385,7 +412,8 @@ void BoardCanvas::MouseEvent(wxMouseEvent &event) {
 }
 
 void BoardCanvas::Zoom(std::int32_t zoom) {
-  t->Zoom(zoom);
+  if(!t->Zoom(zoom))
+    return;
   t_captures->ResizePieces(t->GetPiecesSizes() * CAPTURE_FACTOR);
   Refresh();
 }
@@ -398,12 +426,8 @@ void BoardCanvas::Swap() {
 void BoardCanvas::SetClockTime(short hours, short min, short sec,
                                bool IsBlack) {
   if (IsBlack) {
-    black_time = std::make_tuple(hours, min, sec);
+    gs.black_time = std::make_tuple(hours, min, sec);
   } else {
-    white_time = std::make_tuple(hours, min, sec);
+    gs.white_time = std::make_tuple(hours, min, sec);
   }
 }
-
-wxBEGIN_EVENT_TABLE(BoardCanvas, wxPanel) EVT_PAINT(BoardCanvas::OnPaint)
-    EVT_MOUSE_EVENTS(BoardCanvas::MouseEvent)
-        wxEND_EVENT_TABLE()
diff --git a/src/game_tab/left_panel/board/BoardCanvas.hpp b/src/game_tab/left_panel/board/BoardCanvas.hpp
index b26526f..7b6ccf7 100644
--- a/src/game_tab/left_panel/board/BoardCanvas.hpp
+++ b/src/game_tab/left_panel/board/BoardCanvas.hpp
@@ -58,6 +58,16 @@ typedef struct AnimState {
   wxPoint transVect;
 } AnimState;
 
+typedef struct GameState {
+  std::string white, black;
+  std::string board;
+  std::map<char, std::uint8_t> captures;
+  bool is_black_turn;
+  bool mat_black;
+  bool mat_white;
+  ClockTime black_time, white_time;
+} GameState;
+
 class BoardCanvas : public wxPanel {
   // *t is theme for board+pieces and
   // *t_captures is theme for captured pieces (scale down version of t)
@@ -73,11 +83,11 @@ class BoardCanvas : public wxPanel {
   wxSize canvas_size;
   wxPoint active_square;
   std::map<char, std::uint8_t> captures;
-  ClockTime black_time, white_time;
   bool frozen,lock_square_size;
 
   // Current animation state
   AnimState adata;
+  GameState gs;
 
 public:
   BoardCanvas(wxFrame *parent);
@@ -89,10 +99,8 @@ public:
   void MouseEvent(wxMouseEvent &event);
   void Zoom(std::int32_t zoom);
   void Swap();
-  void SetupBoard(std::string board, bool is_black_turn,
-                  std::map<char, std::uint8_t> captures,
-                  std::string white_player, std::string black_player);
-  void Animate(const std::string &board, bool is_black_turn, std::map<char, std::uint8_t> captures, std::string src, std::string dst,bool faster);
+  void OnResize(wxSizeEvent &e);
+  void SetupBoard(const GameState &new_gs);
+  void Animate(const GameState &new_gs, std::string src, std::string dst,bool faster);
   void SetClockTime(short hours, short min, short sec, bool IsBlack);
-  DECLARE_EVENT_TABLE()
 };
diff --git a/src/game_tab/left_panel/board/Theme.cpp b/src/game_tab/left_panel/board/Theme.cpp
index 6ecbafc..f72dfab 100644
--- a/src/game_tab/left_panel/board/Theme.cpp
+++ b/src/game_tab/left_panel/board/Theme.cpp
@@ -11,6 +11,8 @@ Theme::Theme() : square_radius(10) {
       config->Read("board/theme/squares/path", "default").ToStdString();
   wxFileName square_file(square);
   CONFIG_CLOSE(config);
+  // Mat
+  skin['#']=LoadPNG("mat").ConvertToImage();
   // Piece
   if (piece == "default" || !piece_file.FileExists()) {
     wxLogDebug("Loading piece skin from binres");
@@ -95,12 +97,18 @@ wxBitmap *Theme::Get(char c) { return (skin_scaled[c]); }
 
 void Theme::ResizePieces(std::uint32_t width) {
   for (std::pair<char, wxImage> c : skin) {
-    if (c.first != 's' && c.first != 'S') {
+    if (c.first != 's' && c.first != 'S' && c.first != '#') {
       if (skin_scaled.count(c.first))
         delete skin_scaled[c.first];
       skin_scaled[c.first] =
           new wxBitmap(c.second.Scale(width, width, wxIMAGE_QUALITY_HIGH));
     }
+    else if(c.first == '#'){
+      if (skin_scaled.count(c.first))
+        delete skin_scaled[c.first];
+      skin_scaled[c.first] =
+          new wxBitmap(c.second.Scale(width*MAT_SIZE_FACTOR, width*MAT_SIZE_FACTOR, wxIMAGE_QUALITY_HIGH));
+    }
   }
 }
 
@@ -130,10 +138,15 @@ void Theme::ResizeSquares(std::uint32_t width) {
   skin_scaled['3']->SetMask(RoundedMask(width, 3));
 }
 
-void Theme::Zoom(int amount) {
+bool Theme::Zoom(int amount) {
   double width = skin_scaled['s']->GetWidth() + amount;
+  if(width<=20)
+    return false;
+  if(width>=180)
+    return false;
   ResizeSquares(std::max(width, 1.0));
   ResizePieces(std::max(width * PIECE_SIZE_FACTOR, 1.0));
+  return true;
 }
 
 void Theme::SetSquareRadius(std::uint8_t radius) {
diff --git a/src/game_tab/left_panel/board/Theme.hpp b/src/game_tab/left_panel/board/Theme.hpp
index 88036d8..c3acf10 100644
--- a/src/game_tab/left_panel/board/Theme.hpp
+++ b/src/game_tab/left_panel/board/Theme.hpp
@@ -8,6 +8,7 @@
 #define ELT_DIM 200
 #define DEFAULT_SIZE 80
 #define PIECE_SIZE_FACTOR 0.8 // Should be between 0 and 1
+#define MAT_SIZE_FACTOR 0.4
 #define DEFAULT_PIECE_THEME "assets/pieces/cburnett.png"
 #define DEFAULT_SQUARE_THEME "assets/boards/chesscom_8bits.png"
 
@@ -29,7 +30,7 @@ public:
   void ResizeSquaresAndPieces(std::uint32_t width);
   void SetSquareRadius(std::uint8_t radius);
   std::uint8_t GetSquareRadius();
-  void Zoom(int amount);
+  bool Zoom(int amount);
   double GetPiecesSizes();
   double GetSquaresSizes();