更好的输入函数。

OOP/FiveInARow/main.cpp

@@ -1,75 +1,103 @@
+#include "fiveInARow.h"
 #include <iostream>
 #include <string>
-#include "fiveInARow.h"
 
 int main() {
-    ChessBoard aBoard;
-    aBoard.show();
-    Player* players[2];
+    ChessBoard *aBoard;
+    std::cout << std::numeric_limits<std::streamsize>::max() << std::endl;
+    {
+        int boardSize = 0;
+        while (true) {
+            std::cout << "Please enter the size of the board (5-15): ";
+            std::cin >> boardSize;
+            if (std::cin.fail() || boardSize < 5 || boardSize > 15) {
+                std::cout << "Invalid input, try again." << std::endl;
+                std::cin.clear();
+                std::cin.ignore(std::numeric_limits<std::streamsize>::max(),
+                                '\n');
+            }
+            else {
+                break;
+            }
+        }
+        aBoard = new ChessBoard(boardSize);
+    }
+    Player *players[2];
     {
         std::string temp = "";
         std::cout << "Player 1 name: ";
         std::cin >> temp;
-        players[0] = new Player(temp, BLACK, &aBoard);
+        players[0] = new Player(temp, BLACK, aBoard);
         std::cout << "Player 2 name: ";
         std::cin >> temp;
-        players[1] = new Player(temp, WHITE, &aBoard);
+        players[1] = new Player(temp, WHITE, aBoard);
     }
 
+    aBoard->show();
     putChessPieceResult result;
     bool nowMovePlayerIndex = false;
 
     do {
         std::cout << players[nowMovePlayerIndex]->getName() << " ["
                   << (players[nowMovePlayerIndex]->getColor() ? "◯White"
-                                                             : "⬤Black")
+                                                              : "⬤Black")
                   << "]: "
                   << "Please enter the coordinate of your new chess piece."
                   << std::endl;
         char row, column;
-        std::cout << "Row No. ";
-        std::cin >> row;
-        fflush(stdin);
-        while (!(('1' <= row && row <= '9') || ('A' <= row && row <= 'F') ||
-                 ('a' <= row && row <= 'f'))) {
-            std::cout << "Not a valid row number. Try again." << std::endl;
+
+        while (true) {
             std::cout << "Row No. ";
             std::cin >> row;
-            fflush(stdin);
+            if (std::cin.fail() ||
+                (!(('1' <= row && row <= '9') || ('A' <= row && row <= 'F') ||
+                   ('a' <= row && row <= 'f')))) {
+                std::cout << "Invalid input, try again." << std::endl;
+                std::cin.clear();
+                std::cin.ignore(std::numeric_limits<std::streamsize>::max(),
+                                '\n');
+            }
+            else {
+                break;
+            }
         }
 
-        std::cout << "Column No. ";
-        std::cin >> column;
-        fflush(stdin);
-        while (!(('1' <= row && row <= '9') || ('A' <= row) && (row <= 'F') ||
-                 ('a' <= row && row <= 'f'))) {
-            std::cout << "Not a valid column number. Try again." << std::endl;
+        while (true) {
             std::cout << "Column No. ";
             std::cin >> column;
-            fflush(stdin);
+            if (std::cin.fail() ||
+                (!(('1' <= row && row <= '9') || ('A' <= row && row <= 'F') ||
+                   ('a' <= row && row <= 'f')))) {
+                std::cout << "Invalid input, try again." << std::endl;
+                std::cin.clear();
+                std::cin.ignore(std::numeric_limits<std::streamsize>::max(),
+                                '\n');
+            }
+            else {
+                break;
+            }
         }
+
         result = players[nowMovePlayerIndex]->setChess(row, column);
         if (result == failed) {
             continue;
         }
         else if (result == success) {
             nowMovePlayerIndex ^= 1;
-            aBoard.show();
+            aBoard->show();
             continue;
         }
         else {
-            aBoard.show();
+            aBoard->show();
             char input;
             do {
                 std::cout << "Reset for another round? (y/n) ";
                 input = getchar();
-                fflush(stdin);
             } while (input != 'y' && input != 'Y' && input != 'n' &&
                      input != 'N');
-
             if (input == 'y' || input == 'Y') {
-                aBoard.reset();
-                aBoard.show();
+                aBoard->reset();
+                aBoard->show();
                 continue;
             }
             else {