2024/05/09level2done

Makefile

 chess: system/game.o system/board.o pieces/pawn.o pieces/king.o pieces/queen.o pieces/bishop.o pieces/knight.o pieces/rook.o pieces pieces/piece.o system/coordinates.o system/utilities.o
-	g++ pieces/*.o system/*.o -o src/echecs
+	g++ pieces/*.o system/*.o -o src/echecs -Wall -Wextra
 	make clean
 
 %.o: %.cc

system/board.cc

@@ -251,12 +251,37 @@ coordinates get_coord_from_string(std::string move){
     return coordinates(result_x,result_y);
 }
 
+coordinates board::get_king_coord(bool white_king){
+    coordinates result (0,0);
+    if(white_king){
+        for(int i = 0; i < white_pieces.size(); i++){
+            if(white_pieces[i]->get_type() == king_type){
+                result = white_pieces[i]->get_coord();
+            }
+        }
+    }else{
+        for(int i = 0; i < black_pieces.size(); i++){
+            if(black_pieces[i]->get_type() == king_type){
+                result = black_pieces[i]->get_coord();
+            }
+        }
+    }
+    return result;
+}
+
 /// @brief check if the selected player is in check state
 /// @param white_king indicate if the king checked is white
 /// @return a boolean indicating if a check is present
 bool board::is_check(bool white_king){
     bool result = false;
-    for(int i = 0; i < white_pieces.size(); i++){
-        result = result || is_legal(white_pieces[i]->get_coord(),,false);
+    if(white_king){
+        for(int i = 0; i < black_pieces.size(); i++){
+            result = result || is_legal(black_pieces[i]->get_coord(),get_king_coord(white_king),!white_king);
+        }
+    }else{
+        for(int i = 0; i < white_pieces.size(); i++){
+            result = result || is_legal(white_pieces[i]->get_coord(),get_king_coord(white_king),!white_king);
+        }
     }
+    return result;
 }
\ No newline at end of file

system/board.h

@@ -16,7 +16,7 @@
 #define BACKGROUND_COLOR1 terminal_white
 #define BACKGROUND_COLOR2 terminal_yellow
 #define PIECES_COLOR terminal_black
-#define HIGHLIGHT_TEXT_COLOR terminal_red
+#define WARNING_TEXT_COLOR terminal_red
 
 /// @brief A class representing the chess board
 class board{
@@ -32,6 +32,7 @@ class board{
         void move(coordinates move_from, coordinates move_to);
         bool is_legal(coordinates move_from, coordinates move_to, bool white_move);
         void erase_piece(coordinates coord);
+        coordinates get_king_coord(bool white_king);
         bool is_check(bool white_king);
 };
 

system/game.cc

@@ -34,7 +34,13 @@ int main(){
                 terminal_reset_all();
                 std::cout << " turn. ";
             }
-
+            // Check warning for current player king
+            if(chess_board.is_check(white_move)){
+                std::cout << std::endl;
+                terminal_set_text_color(WARNING_TEXT_COLOR);
+                std::cout << "Warning : Check state" << std::endl;
+                terminal_reset_all();
+            }
             std::cout << "What move ? " << std::endl;
             std::cin >> movement;
             if(movement == "/quit" || movement == "/resign" || movement == "/draw"){
@@ -60,8 +66,16 @@ int main(){
                     coordinates start = get_coord_from_string(movement.substr(0, 2));
                     coordinates end = get_coord_from_string(movement.substr(2, 2));
                     if(chess_board.is_legal(start,end,white_move)){
-                        chess_board.move(start,end);
-                        correct_move = true;
+                        //Apply the movement on a chess board copy and verify the check state of the current player's king
+                        board chess_board_copy(chess_board);
+                        chess_board_copy.move(start,end);
+                        if(chess_board_copy.is_check(white_move)){
+                            //The move is making the active player in check state, illegal
+                            std::cout << "Illegal move. Your king will be checked" << std::endl;
+                        }else{
+                            chess_board.move(start,end);
+                            correct_move = true;
+                        }
                     }else{
                         std::cout << "Illegal move." << std::endl;
                     }