#include <iostream.h>
#include <stdio.h>
#include <conio.h>
char board[9];
int TURN = 0;
int MOVE;
//functions
void instructions();
int displayBoard();
void hline (int x, int y, int col);
void vline (int x, int y, int col);
void playgame();
char PLAYER_TURN();
char CPU_TURN();
void drawX(int x, int y);
void drawO(int x, int y);
int checkWinner();
 
 
int main()
{
clrscr();
char key;  //define a character called key
  do
    {
 
 
cout << "\n\n\n\n\n\n\t\t\t\tTIC TAC TOE\n\n\n\t\t";
cout << "Think You Can Win a Game of Tic Tac Toe?\n\n\n\t\t";
cout << "Please choose one of the following options...\n\n\n";
cout << "\n\tView Instructions    Press '1'";
cout << "\n\tStart New Game       Press '2'";
cout << "\n\tExit Program         Press '3'";
 
do
      {
      key= getch();//input choice
      }
    while (key!='1' && key!='2' && key!='3');
 
if (key=='1')
{
instructions();
}
 
if (key=='2')
{
playgame();
}
}
 
while (key!='3');
}
 
 
 
 
 
 
void instructions()
{
clrscr();
cout << " \n\tPlayer 1 always is always X";
cout << "\n\n\tThe object of the game is to get 3 matching symbols in a row\n\n\tThe grid is numbered as shown below....";
cout << "Press a key to continue...";
gotoxy(20,15);
cout << "0 | 1 | 2\n";
gotoxy(20,16);
cout << "---------\n";
gotoxy(20,17);
cout << "3 | 4 | 5\n";
gotoxy(20,18);
cout << "---------\n";
gotoxy(20,19);
cout << "6 | 7 | 8";
getch();
clrscr();
}
 
void playgame()
 {
  int i;
  for (i=0;i<10;i++) board[i]= -1;
  PLAYER_TURN();
  CPU_TURN();
  PLAYER_TURN();
  CPU_TURN();
  PLAYER_TURN();
  checkWinner();
  CPU_TURN();
  checkWinner();
  PLAYER_TURN();
  checkWinner();
  CPU_TURN();
  checkWinner();
  PLAYER_TURN();
  checkWinner();
 
}
 
 
 
 
int displayBoard()
{
int i;
clrscr();
hline(5,10,17);
hline(5,16,17);
vline(10,5,17);
vline(16,5,17);
for (i = 0; i<9;i++);
 
 {
 if (i == 0)
 {
  drawX(5,5);
 }
 else if (i == 1)
 {
 drawX (11,5);
 }
 else if (i == 2)
 {
 drawX (17,5);
 }
 else if (i == 3)
 {
 drawX (5,11);
 }
 else if (i == 4)
 {
 drawX (11,11);
 }
 else if (i == 5)
 {
 drawX (17,11);
 }
 else if (i == 6)
 {
 drawX (5,17);
 }
 else if (i == 7)
 {
 drawX (11,17);
 }
 else if (i == 8)
 {
 drawX (17,17);
 }
 }
 {
 if (i == 0)
 {
 drawO (5,5);
 }
 else if (i == 1)
 {
 drawO (11,5);
 }
 else if (i == 2)
 {
 drawO (17,5);
 }
 else if (i == 3)
 {
 drawO (5,11);
 }
 else if (i == 4)
 {
 drawO (11,11);
 }
 else if (i == 5)
 {
 drawO (17,11);
 }
 else if (i == 6)
 {
 drawO (5,17);
 }
 else if (i == 7)
 {
 drawO (11,17);
 }
 else if (i == 8)
 {
 drawO (17,17);
 }
 return 0;
 }
 }
 
 
void hline (int x, int y, int col)
{
int i;
textcolor (col);
for (i=0;i<17;i++)
{
gotoxy(i+x,y);
cprintf("%c",219);
}
}
 
 
void vline (int x, int y, int col)
{
int i;
textcolor (col);
for (i=0;i<17;i++)
{
gotoxy(x,i+y);
cprintf("%c",219);
}
}
 
 
 
void drawX (int x, int y)
{
gotoxy(x,y+1);
cprintf(" X X");
gotoxy(x,y+2);
cprintf("  X ");
gotoxy(x,y+3);
cprintf(" X X");
 
}
 
 
 
void drawO (int x, int y)
{
gotoxy(x,y+1);
cprintf("  O ");
gotoxy(x,y+2);
cprintf(" O O");
gotoxy(x,y+3);
cprintf("  O ");
 
}
 
 
 
 
 
 
char PLAYER_TURN()
{
       int i;
       int x,y;
 
       board[9];
       drawX(x,y);
       displayBoard();
       {
       for (i = 0; i<10;i++);
       {
       while(board[i] ==! -1);
       }
      checkWinner();
      }
 
      return 0;
       }
 
 
 
 
char CPU_TURN()
{
        int i;
        int x,y;
 
        board[9];
        drawO(x,y);
 
        displayBoard();
 
        for (i = 0; i<10;i++);
      {
       board[i] == -1;
      }
      checkWinner();
      }
 
 
 
 
 
 
int checkWinner()
{
 
	while(TURN < 10)
	{
 
	if (board[0]== 'X' && board[4]== 'X' && board[8]== 'X') {cout<<"Player 1 is the winner";break;}
	if (board[6]== 'X' && board[4]== 'X' && board[2]== 'X') {cout<<"Player 1 is the winner";break;}
	if (board[0]== 'X' && board[3]== 'X' && board[6]== 'X') {cout<<"Player 1 is the winner";break;}
	if (board[1]== 'X' && board[4]== 'X' && board[7]== 'X') {cout<<"Player 1 is the winner";break;}
	if (board[2]== 'X' && board[5]== 'X' && board[8]== 'X') {cout<<"Player 1 is the winner";break;}
	if (board[0]== 'X' && board[1]== 'X' && board[2]== 'X') {cout<<"Player 1 is the winner";break;}
	if (board[3]== 'X' && board[4]== 'X' && board[5]== 'X') {cout<<"Player 1 is the winner";break;}
	if (board[6]== 'X' && board[7]== 'X' && board[8]== 'X') {cout<<"Player 1 is the winner";break;}
 
	// Check for Player 2...
 
	if (board[0]== 'O' && board[4]== 'O' && board[8]== 'O') {cout<<"Player 2 is the winner";break;}
	if (board[6]== 'O' && board[4]== 'O' && board[2]== 'O') {cout<<"Player 2 is the winner";break;}
	if (board[0]== 'O' && board[3]== 'O' && board[6]== 'O') {cout<<"Player 2 is the winner";break;}
	if (board[1]== 'O' && board[4]== 'O' && board[7]== 'O') {cout<<"Player 2 is the winner";break;}
	if (board[2]== 'O' && board[5]== 'O' && board[8]== 'O') {cout<<"Player 2 is the winner";break;}
	if (board[0]== 'O' && board[1]== 'O' && board[2]== 'O') {cout<<"Player 2 is the winner";break;}
	if (board[3]== 'O' && board[4]== 'O' && board[5]== 'O') {cout<<"Player 2 is the winner";break;}
	if (board[6]== 'O' && board[7]== 'O' && board[8]== 'O') {cout<<"Player 2 is the winner";break;}
 
 }
 
}

char board[3][3];

board[0][0] | board[0][1] | board[0][2]
-------------------------------------
board[1][0] | board[1][1] | board[1][2]
-------------------------------------
board[2][0] | board[2][1] | board[2][2]

int MainWindow::IsWinner()
{
    // this holds the patterns we will check for
    static int pattern[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
    };
    // this loop does the checking
    for( int i = 0; i < 8; ++i)
    {
        if( (GameGrid_[pattern[i][0]] == EX) &&
            (GameGrid_[pattern[i][1]] == EX) &&
            (GameGrid_[pattern[i][2]] == EX))
            return EX;
        if( (GameGrid_[pattern[i][0]] == OH) &&
            (GameGrid_[pattern[i][1]] == OH) &&
            (GameGrid_[pattern[i][2]] == OH))
            return OH;
    }
    // no winner so return 0
    return 0;
}