199 C:\Users\Gaming-PC\Desktop\C++ Files\Tic-Tac-Toe.cpp expected unqualified-id before "if"
{//Tic Tac Toe
//Plays the game of tic tac toe agaienst a human opponent
#include <cstdlib>
#include <iostream>
#include <string>
#include <vector>
#include<algorithm>
using namespace std;
//global constants
const char X = 'X';
const char O = 'O';
const char EMPTY = ' ';
const char TIE = 'T';
const char NO_ONE = 'N';
// function prototypes
void instructions();
char askYesNo(string question);
int askNumber (string question , int high , int low = 0);
char humanPiece();
char opponent(char piece);
void displayBoard(const vector<char> & board);
char winner(const vector<char>&board);
bool isLegal(const vector<char>board ,char human);
int humanMove(const vector<char> board, char human);
int computerMove(vector<char>board , char computer);
void announceWinner(char winner , char computer , char human);
//main function
int main()
{
int move;
const int NUM_SQUARES = 9;
vector<char>board(NUM_SQUARES,EMPTY);
instructions();
char human = humanPiece();
char computer = opponent(human);
char turn = X;
displayBoard(board);
while(winner(board) == NO_ONE)
{
if (turn == human)
{
move = humanMove(board , human);
board[move] = human;
}
else
{
move = computerMove(board , computer);
board [move] = computer;
}
displayBoard(board);
turn = opponent(turn);
}
announceWinner(winner(board) , computer , human);
return 0;
}
void instructions ()
{
cout << "Welcome to the ultimate man machine showdown: Tic-Tac-Toe.\n";
cout << "--where human brain is put agaisnt silicon processor \n\n";
cout << "Make your move known by entering a number, 0 - 8. The number \n";
cout << "corresponds to the desired board position, as illustrated:\n\n";
cout << " 0|1|2\n";
cout << " -------\n";
cout << " 3|4|5\n";
cout << " -------\n";
cout << " 6|7|8\n\n";
cout << "Prepare yourself , human. The battle is about to begin.\n\n";
}
char askYesNo(string question)
{
char response;
do
{
cout << question << " (y/n);";
cin >> response;
} while (response !='y' && response !='n');
return response;
}
int askNumber(string question , int high , int low)
{
int number;
do
{
cout << question << " (" << low << " - " <<high<<"):";
cin >> number;
}while (number > high ||number < low);
return number;
}
char humanPierce()
{
char go_first = askYesNo("Do you require the first move?");
if (go_first == 'y')
{
cout << "\nThen take the first move. You will need it.\n";
return X;
}
else
{
cout << "\nYour bravery will be your undoing ... I will go first.\n";
return 0;
}
}
char opponent (char piece)
{
if (piece == X)
{
return 0;
}
else
{
return X;
}
}
void displayBoard(const vector<char>&board)
{
cout << "\n\t" << board[0] << " | " << board[1] << " | " << board[2];
cout << "\n\t" << "-------";
cout << "\n\t" << board[3] << " | " << board[4] << " | " << board[5];
cout << "\n\t" << "-------";
cout << "\n\t" << board[6] << " | " << board[7] << " | " << board[8];
cout << "\n\n";
}
char winner(const vector<char>& board)
{
// all possible winning rows
const int WINNING_ROWS[8][3] = { {0 , 1 , 2},
{3 , 4 , 5},
{6 , 7 , 8},
{0 , 3 , 6},
{1 , 4 , 7},
{2 , 5 , 8},
{0 , 4 , 8},
{2 , 4 , 6} };
const int TOTAL_ROWS = 8;
//if any winning has three alues that are the same ( and not empty),
// then we have a winner
for (int row = 0; row < TOTAL_ROWS; ++row)
{
if ( (board[WINNING_ROWS[row][0]] != EMPTY) &&
(board[WINNING_ROWS[row][0]] == board[WINNING_ROWS[row][1]])&&
(board[WINNING_ROWS[row][1]] == board[WINNING_ROWS[row][2]]) )
{
return board[WINNING_ROWS[row][0]];
}
}
// since nobody has won, check for a tie (no empty squares left)
if (count(board.begin(), board.end(), EMPTY) == 0)
return TIE;
// since nobody has won and it isnt a tie , the game aint over
return NO_ONE;
}
inline bool isLegal(int move, const vector<char>& board)
{
return (board[move] == EMPTY);
}
int humanMove(const vector<char> & board, char human)
{
int move = askNumber("Where will you move?" , (board.size() -1));
while (!isLegal(move , board))
{
cout << "\nThat square is already occupied, dumbshit.\n";
move = askNumber("Where will you move?" , (board.size() -1));
}
cout << "Fine....\n";
return move;
}
int computerMove(vector<char>board , char computer)
{
unsigned int move = 0;
bool found = false;
//if computer can win on the next move , thats the move to make
while (!found && move <board.size())
{
board[move] = computer;
found = winner(board) == computer;
board[move] = EMPTY;
}
if (!found)
{
++move;
}
}
//other wise, if humancan win on the next move thats the move to make
if(!found)
{
move = 0;
char human = opponent(computer);
while (!found && move < board.size())
{
if (isLegal(move,board))
{
board[move] = human;
found = winner(board) == human;
board[move] = EMPTY;
}
if(!found)
{
++move;
}
}
}
//otherwise, moving to the best open square is the move to make
if (!found)
{
move = 0;
unsigned int i = 0;
const int BEST_MOVES[] = {4 , 0 , 2 , 6 , 8 , 1 , 3 , 5 ,7};
//pick one best open square
while (!found && i < board.size())
{
move = BEST_MOVES[i];
if(isLegal(move , board))
{
found = true;
}
++i;
}
}
cout << "I shall take square number " << move << endl;
return move;
}
void announceWinner(char winner , char computer , char human)
{
if (winner == computer)
{
cout << winner << "'s won!\n";
cout << "As i Predicted, human, I am Triumphant once more - - proof\n";
cout << "that computers are superior to humans in all regards.\n";
}
else if (winner == human)
{
cout << winner << "'s won!\n";
cout << No, No! It cannot be! Somehow you tricked me, human.\n";
cout << "But never again! I, the computer, so swear it!\n";
}
else
{
cout << "It's a tie.\n";
cout << "You were most lucky human, and somehow managed to tie me.\n";
cout << "Celebrate.... for this is the best you will ever achieve.\n";
}
}
system("PAUSE");
return EXIT_SUCCESS;
}
*I dont understand what this error means, if references it also every time i start the line with "if" after line 199, if anyone could explain to me It would be a huge help, Thanks!
`
