//Tic-Tac-Toe game

//Created 1.8.03

#include <iostream.h>
#include <stdlib.h>

//Defines\Enums

#define PLAY  1
#define INTRO 2
#define EXIT  3
#define PLAYER1 100
#define PLAYER2 200
enum BOOL { FALSE,TRUE };
/////////////////////////


//Prototypes

int Menu();
void GameMain();
void Instructions();
/////////////////////////



//Class Declaration/////////////////////////

class Board
{
public:
void SetBoardStart();
void ShowBoard();
int CheckWin();  //Returns true if a player has won

void UpdateBoard(int place,int playerTurn);

private:
char board[3][3];
};
///////////////////////////////////////////


//Method declarations

void Board::SetBoardStart()
{
    //Sets all of board to blank space

    for (int i=0; i<3; i++)
    {
        for (int j=0; j<3; j++)
        {
        board[i][j] = ' ';
        }
    }
}

//Displays the updated board

void Board::ShowBoard()
{
system("cls");

cout <<"        -------------\n";
cout <<"        | " <<board[0][0] <<" | "<<board[0][1] <<" | ";
cout <<board[0][2] <<" |\n";

cout <<"        -------------\n";
cout <<"        | " <<board[1][0] <<" | "<<board[1][1] <<" | ";
cout <<board[1][2] <<" |\n";

cout <<"        -------------\n";
cout <<"        | " <<board[2][0] <<" | "<<board[2][1] <<" | ";
cout <<board[2][2] <<" |\n";
cout <<"        -------------\n";
}


void Board::UpdateBoard(int place,int playerTurn)
{
    char symbol;  //The symbol to place on the board

                  //Depends on the player turn

    if (playerTurn==PLAYER1)
    symbol = 'O';
    
    else 
    symbol = 'X';
    
        switch (place)
        {
        case 1: board[0][0] = symbol;
        break;
        case 2: board[0][1] = symbol;
        break;
        case 3: board[0][2] = symbol;
        break;
        
        case 4: board[1][0] = symbol;
        break;
        case 5: board[1][1] = symbol;
        break;
        case 6: board[1][2] = symbol;
        break;
        
        case 7: board[2][0] = symbol;
        break;
        case 8: board[2][1] = symbol;
        break;
        case 9: board[2][2] = symbol;
        break;
        
        default: cout <<"You lost your turn for nothing!\n";
        break;
        } //End switch       

} 
        

//Win Check

int Board::CheckWin()
{

if (board[0][0] == 'O' && board[0][1] == 'O' && board[0][2] == 'O'
||  board[1][0] == 'O' && board[1][1] == 'O' && board[1][2] == 'O'
||  board[2][0] == 'O' && board[2][1] == 'O' && board[2][2] == 'O'

||  board[0][0] == 'O' && board[1][0] == 'O' && board[2][0] == 'O'
||  board[0][1] == 'O' && board[1][1] == 'O' && board[2][1] == 'O'
||  board[0][2] == 'O' && board[1][2] == 'O' && board[2][2] == 'O'

||  board[0][0] == 'O' && board[1][1] == 'O' && board[2][2] == 'O'
||  board[0][2] == 'O' && board[1][1] == 'O' && board[2][0] == 'O')
{
    return 1; //Returns 1- player 1 has won

}

if (board[0][0] == 'X' && board[0][1] == 'X' && board[0][2] == 'X'
||  board[1][0] == 'X' && board[1][1] == 'X' && board[1][2] == 'X'
||  board[2][0] == 'X' && board[2][1] == 'X' && board[2][2] == 'X'

||  board[0][0] == 'X' && board[1][0] == 'X' && board[2][0] == 'X'
||  board[0][1] == 'X' && board[1][1] == 'X' && board[2][1] == 'X'
||  board[0][2] == 'X' && board[1][2] == 'X' && board[2][2] == 'X'

||  board[0][0] == 'X' && board[1][1] == 'X' && board[2][2] == 'X'
||  board[0][2] == 'X' && board[1][1] == 'X' && board[2][0] == 'X')
{
    return 2;  //Returns 2- player 2 has won

}

return 0;
}


///////////////////////////////////////////////////////////////////////

//Main- program starts here

int main()
{

int exit=FALSE,choice;

    while (!exit)
    {
    choice=Menu();
        
        switch (choice)
        {
        case INTRO: Instructions();
        break;
        
        case EXIT: exit=TRUE;
        break;
        
        case PLAY: GameMain();
        break;
        
        default: break;
        } //End switch

    
    } //End while


system("cls");
cout <<"Thanks for playing!\n";
system("PAUSE");

return 0;
} //End main


///////////////////////////////////////////////////////////////////////


//Non member function declarations

int Menu()
{
    system("cls");
    int menuChoice;
    cout <<"*** Main Menu ***\n";
    cout <<"(1) Play Tic-Tac-Toe\n";
    cout <<"(2) Instructions\n";
    cout <<"(3) Exit\n";
    cin >>menuChoice;
    
    return menuChoice;
}

void Instructions()
{
    system("cls");
    cout <<"This is a very simple Tic-Tac-Toe game.\n";
    cout <<"It is meant to be played with two people, taking turns each round\n\n";
    cout <<"To place your symbol on the board, just type the number of the box to place it in.\n";
    cout <<"For example: type 1 to place you symbol in the top-left corner of the board.\n";
    cout <<"\nHere is are the numbers of each place on the board:\n\n";
    cout <<"I am trying to figure out better ways to handle data.\n\n";
    system("PAUSE");
}


//Main game loop

void GameMain()
{
    Board theBoard;
    theBoard.SetBoardStart(); //Sets the board to blank

    
    int turnCounter=0; //If even- player 1 turn

                       //If odd- player 2 turn

    int playerTurn;
    char *playerName;
    int place; //Sets O or X on the game board

    
    while (TRUE)
    {
        //Sets player turn: even or odd?

        if (turnCounter %2 == 0)
        {
        playerName = "Player 1";
        playerTurn = PLAYER1;
        }
    
        else 
        {
        playerName = "Player 2";
        playerTurn = PLAYER2;
        }

        theBoard.ShowBoard(); //Shows the board

        
        int winCheck = theBoard.CheckWin(); //Win Check on board

        
        if (winCheck==1)
        {
                cout <<"Player 1 has won!\n";
                system("PAUSE");
                break; //exit game loop

        }
        
        if (winCheck==2)
        {
                cout <<"Player 2 has won!\n";
                system("PAUSE");
                break; //exit game loop

        }
        
        cout <<"\n\n" <<playerName <<": ";
        cin >>place; //Accepts input from user

        
        theBoard.UpdateBoard(place,playerTurn);
        
        turnCounter++;
    }
    
} //End GameMain

      

  while( running ){   ...      case EXIT: running = false; break;   ...}