cout << "Player " << player << ", enter a number: ";
cin >> choice;
mark = (player == 1) ? 'X' : 'O';
if (choice == 1 && square[1] == '1') {
square[1] = mark;
}
else if (choice == 2 && square[2] == '2') {
square[2] = mark;
}
else if (choice == 3 && square[3] == '3') {
square[3] = mark;
}
else if (choice == 4 && square[4] == '4') {
square[4] = mark;
}
else if (choice == 5 && square[5] == '5') {
square[5] = mark;
}
else if (choice == 6 && square[6] == '6') {
square[6] = mark;
}
else if (choice == 7 && square[7] == '7') {
square[7] = mark;
}
else if (choice == 8 && square[8] == '8') {
square[8] = mark;
}
else if (choice == 9 && square[9] == '9') {
square[9] = mark;
}
else {
cout << "Invalid move!";
player--;
cin.ignore();
cin.get();
}
i = checkwin();
player++;
} while (i == -1);
board();
if (i == 1) {
cout << "Player " << --player << " wins!";
}
else {
cout << "Game draw!";
}
cin.ignore();
cin.get();
return 0;
}
/*presentation questions:
1)how to compile a c++ file?
-in vs code i would use the built in terminal and follow ctrl+shift+b and run the g++ command g++ naughtsandcrosses.cpp -o naughtsandcrosses ./naughtsandcrosses
2)what is this line of code doing?
the example code "mark = (player == 1) ? 'X' : 'O';"
-this operator assigns the 'X' to mark if the player is 1, otherwise the player is 2 with 'O' setting the players symbols.
3)what is this function doing?
example code "int checkwin() {
if (sqaure[1] == square[2] == sqaure[3]) return 1;} ..."
this checks all possible win combinations over all directions. it also returns a 1 if a player wins, 0 for a draw and -1 to continue the game.
5)how does a for loop work in c++?
a for loop is a tool to utilise repitition that allows you to write code that can be executed a specific number of times. this could have been used to simplify the win-check in my naughts and crosses code but i used if-else chains.