University Year 2 C++ Project - A Noughts and Crosses (Tic Tac Toe) Game

nac.cpp

#include <iostream>
#include <cstdlib>
using namespace std;

char matrix[3][3];
int win(0);
int loss(0);
int draw(0);

char player;
char computer;

int grid()
{
	cout << "\n\t\t                1   2   3\n";
	cout << "\t\t             1  " << matrix[0][0] << " | " << matrix[0][1] << " | " << matrix[0][2] << "\n";
	cout << "\t\t               ---|---|---\n";
	cout << "\t\t             2  " << matrix[1][0] << " | " << matrix[1][1] << " | " << matrix[1][2] << "\n";
	cout << "\t\t               ---|---|---\n";
	cout << "\t\t             3  " << matrix[2][0] << " | " << matrix[2][1] << " | " << matrix[2][2] << "\n\n\n";
}

int table()
{	   	   	   	   	   	   	   	   	   	   	   	
	cout << "n\t\t Player | Wins | Losses | Draws\n";
	cout << "\t\t--------|------|--------|-------\n";
	cout << "\t\t    " << player << "   |   " << win << "  |   " << loss << "    |   " << draw << "\n";
	cout << "\t\t--------|------|--------|-------\n";
	cout << "\t\t    " << computer << "   |   " << loss << "  |   " << win << "    |   " << draw << "\n\n\n\n";
}

int main()
{
	cout << "\n\n\t\t***********************\n";
	cout << "\t\t*                     *\n";
	cout << "\t\t*  Noughts & Crosses  *\n";
	cout << "\t\t*                     *\n";
	cout << "\t\t* by Martin Costello. *\n";
	cout << "\t\t*                     *\n";
	cout << "\t\t***********************\n\n\n\n";
	cout << "Please choose your player (O or X) : ";

	cin >> player;
	
	while (player!='X' &&
		   player!='O' &&
		   player!='x' && 
		   player!='o')
	{
		cout << "\nThat is not a valid player choice.\n\n";
		cout << "Please choose your player (O or X) : ";
		cin >> player;
	}

	if (player=='o')
	{
		player='O';
	}
	if (player=='x')
	{
		player='X';
	}
	if (player=='O')
	{
		computer='X';
	}
	if (player=='X')
	{	  
		computer='O';
	}

	int moves(0);
	int m;
	int n;
	char cont('y');
	while (cont=='Y' || cont=='y')
	{
		for (m = 0; m < 3; m++)
		{
			for (n = 0; n < 3; n++)
			{
				matrix[m][n] = '\0';
			}
		}

		int i;
		int j;

		while (moves < 10)
		{
			grid();	   	   	   	   	   
			cout << "\nYou are " << player << ". Please choose the row and column for your move.\n";
			cout << "Column : ";
			cin >> j;
			cout << "\nRow : ";
			cin >> i;

			for (i>3 || i<1 || j>3 || j<1 || ('X' == matrix[i-1][j-1] || 'O' == matrix[i-1][j-1]))
			{
				cout << "\nThis is not a valid move.\n";
				cout << "Row : ";
				cin >> i;
				cout << "\nColumn : ";
				cin >> j;
			}

			matrix[i-1][j-1]=player;
			moves++;
			cout << "\n\n";
			grid();

			if (matrix[0][0] == player &&
				matrix[0][0] == matrix[1][0] &&
				matrix[1][0] == matrix[2][0])
			{
				cout << "You have won!\n";
				win++;
				break;
			}
			if (matrix[0][1] == player &&
				matrix[0][1] == matrix[1][1] &&
				matrix[1][1]==matrix[2][1])
			{
				cout << "You have won!\n";
				win++;
				break;
			}
			if (matrix[0][2] == player &&
				matrix[0][2] == matrix[1][2] &&
				matrix[1][2] == matrix[2][2])
			{
				cout << "You have won!\n";													
				win++;
				break;
			}
			if (matrix[0][0] == player &&
				matrix[0][0] == matrix[0][1] &&
				matrix[0][1] == matrix[0][2])
			{
				cout << "You have won!\n";
				win++;
				break;
			}
			if (matrix[1][0] == player &&
				matrix[1][0] == matrix[1][1] &&
				matrix[1][1] == matrix[1][2])
			{
				cout << "You have won!\n";
				win++;
				break;
			}
			if (matrix[2][0] == player &&
				matrix[2][0] == matrix[2][1] &&
				matrix[2][1] == matrix[2][2])
			{
				cout << "You have won!";
				win++;
				break;
			}
			if (matrix[0][0] == player &&
				matrix[0][0] == matrix[1][1] &&
				matrix[1][1] == matrix[2][2])
			{
				cout << "You have won!\n";
				win++;
				break;
			}
			if (matrix[0][2] == player &&
				matrix[0][2] == matrix[1][1] &&
				matrix[1][1] == matrix[2][0])
			{
				cout << "You have won!\n";
				win++;
				break;
			}
			
			if (moves == 9)
			{
				cout << "There are no more valid moves. Game over.\n";
				draw++;
				break;
			}
			if ((matrix[0][1] == computer && matrix[0][2] == computer && matrix[0][0] == '\0') ||
				(matrix[1][0] == computer && matrix[2][0] == computer && matrix[0][0] == '\0') ||
				(matrix[1][1] == computer && matrix[2][2] == computer && matrix[0][0] == '\0'))
			{
				i=0;
				j=0;
			}
			else if ((matrix[0][0] == computer && matrix[0][2] == computer && matrix[0][1] == '\0') ||
					 (matrix[1][1] == computer && matrix[2][1] == computer && matrix[0][1] == '\0'))
			{
				i=0;																				
				j=1;
			}
			else if ((matrix[0][0] == computer && matrix[0][1] == computer && matrix[0][2] == '\0') ||
					 (matrix[1][1] == computer && matrix[2][0] == computer && matrix[0][2] == '\0') ||
					 (matrix[1][2] == computer && matrix[2][2] == computer && matrix[0][2] == '\0'))
			{
				i=0;
				j=2;
			}
			else if ((matrix[0][0] == computer && matrix[2][0] == computer && matrix[1][0] == '\0') ||
					 (matrix[1][1] == computer && matrix[1][2] == computer && matrix[1][0] == '\0'))
			{
				i=1;
				j=0;
			}
			else if ((matrix[0][0] == computer && matrix[2][2] == computer && matrix[1][1] == '\0') ||
					 (matrix[0][1] == computer && matrix[2][1] == computer && matrix[1][1] == '\0') ||
					 (matrix[0][2] == computer && matrix[2][0] == computer && matrix[1][1] == '\0') ||
					 (matrix[1][0] == computer && matrix[1][2] == computer && matrix[1][1] == '\0'))
			{
				i=1;
				j=1;
			}
			else if ((matrix[0][2] == computer && matrix[2][2] == computer && matrix[1][2] == '\0')  ||
					 (matrix[1][0] == computer && matrix[1][1] == computer && matrix[1][2] == '\0'))
			{
				i=1;
				j=2;
			}
			else if ((matrix[0][0] == computer && matrix[1][0] == computer && matrix[2][0] == '\0') ||
					 (matrix[0][2] == computer && matrix[1][1] == computer && matrix[2][0] == '\0') ||
					 (matrix[2][1] == computer && matrix[2][2] == computer && matrix[2][0] == '\0'))
			{
				i=2;
				j=0;
			}
			else if ((matrix[0][1] == computer && matrix[1][1] == computer && matrix[2][1] == '\0')  ||
					 (matrix[2][0] == computer && matrix[2][2] == computer && matrix[2][1] == '\0'))
			{
				i=2;
				j=1;
			}
			else if ((matrix[0][0] == computer && matrix[1][1] == computer && matrix[2][2] == '\0') ||
					 (matrix[0][2] == computer && matrix[1][2] == computer && matrix[2][2] == '\0') ||
					 (matrix[2][0] == computer && matrix[2][1] == computer && matrix[2][2] == '\0'))
			{
				i=2;
				j=2;
			}
			else if ((matrix[0][1] == player && matrix[0][2] == player && matrix[0][0] == '\0') ||
					 (matrix[1][0] == player && matrix[2][0] == player && matrix[0][0] == '\0') ||
					 (matrix[1][1] == player && matrix[2][2] == player && matrix[0][0] == '\0'))
			{
				i=0;
				j=0;
			}
			else if ((matrix[0][0] == player && matrix[0][2] == player && matrix[0][1] == '\0') ||		
					 (matrix[1][1] == player && matrix[2][1] == player && matrix[0][1] == '\0'))
			{	   	  
				i=0;									
				j=1;
			}
			else if ((matrix[0][0] == player && matrix[0][1] == player && matrix[0][2] == '\0') ||
					 (matrix[1][1] == player && matrix[2][0] == player && matrix[0][2] == '\0') ||
					 (matrix[1][2] == player && matrix[2][2] == player && matrix[0][2] == '\0'))
			{
				i=0;
				j=2;
			}
			else if ((matrix[0][0] == player && matrix[2][0] == player && matrix[1][0] == '\0') ||
					 (matrix[1][1] == player && matrix[1][2] == player && matrix[1][0] == '\0'))
			{
				i=1;
				j=0;
			}
			else if ((matrix[0][0] == player && matrix[2][2] == player && matrix[1][1] == '\0') ||
					 (matrix[0][1] == player && matrix[2][1] == player && matrix[1][1] == '\0') ||
					 (matrix[0][2] == player && matrix[2][0] == player && matrix[1][1] == '\0') ||
					 (matrix[1][0] == player && matrix[1][2] == player && matrix[1][1] == '\0'))
			{
				i=1;
				j=1;
			}
			else if ((matrix[0][2] == player && matrix[2][2] == player && matrix[1][2] == '\0') ||
					 (matrix[1][0] == player && matrix[1][1] == player && matrix[1][2] == '\0'))
			{
				i=1;
				j=2;
			}
			else if ((matrix[0][0] == player && matrix[1][0] == player && matrix[2][0] == '\0') ||
					 (matrix[0][2] == player && matrix[1][1] == player && matrix[2][0] == '\0') ||
					 (matrix[2][1] == player && matrix[2][2] == player && matrix[2][0] == '\0'))
			{
				i=2;
				j=0;
			}
			else if ((matrix[0][1] == player && matrix[1][1] == player && matrix [2][1] =='\0') ||
					 (matrix[2][0] == player && matrix[2][2] == player && matrix [2][1] =='\0'))
			{
				i=2;
				j=1;
			}
			else if ((matrix[0][0] == player && matrix[1][1] == player && matrix[2][2] == '\0') ||
					 (matrix[0][2] == player && matrix[1][2] == player && matrix[2][2] == '\0') ||
					 (matrix[2][0] == player && matrix[2][1] == player && matrix[2][2] == '\0'))
			{
				i=2;
				j=2;
			}
			else
			{
				if (matrix[1][1] == '\0')
				{
					i=1;
					j=1;
				}
				else if (matrix[0][0] == '\0')
				{
					i=0;
					j=0;
				}	 
				else if (matrix[0][2] == '\0')
				{
					i=0;
					j=2;
				}
				else if (matrix[2][0] == '\0')
				{
					i=2;
					j=0;
				}
				else if (matrix[2][2] == '\0')
				{
					i=2;
					j=2;
				}
				else if (matrix[0][1] == '\0')
				{
					i=0;
					j=1;
				}
				else if (matrix[1][0] == '\0')
				{
					i=1;
					j=0;
				}
				else if (matrix[1][2] == '\0')
				{
					i=1;
					j=2;
				}
				else if (matrix[2][1] == '\0')
				{
					i=2;
					j=1;
				}
			}

			matrix[i][j]=computer;
			moves++;

			cout << " " << endl;
			cout << " " << endl;
			cout << " " << endl;
			cout << " " << endl;
			cout << " " << endl;
			cout << " " << endl;
			cout << "Now it is the computer's turn." << endl;
			cout << " " << endl;

			grid();

			if (matrix[0][0] == computer &&
				matrix[0][0] == matrix[1][0] &&
				matrix[1][0] == matrix[2][0])
			{
				cout << "The computer has won!\n";
				loss++;
				break;
			}
			if (matrix[0][1] == computer &&
				matrix[0][1] == matrix[1][1] &&
				matrix[1][1] == matrix[2][1])
			{
				cout << "The computer has won!\n";
				loss++;
				break;
			}
			if (matrix[0][2] == computer &&
				matrix[0][2] == matrix[1][2] &&
				matrix[1][2] == matrix[2][2])
			{
				cout << "The computer has won!\n";
				loss++;
				break;
			}
			if (matrix[0][0] == computer &&
				matrix[0][0] == matrix[0][1] &&
				matrix[0][1] == matrix[0][2])
			{
				cout << "The computer has won!\n";
				loss++;
				break;
			}
			if (matrix[1][0] == computer &&
				matrix[1][0] == matrix[1][1] &&
				matrix[1][1] == matrix[1][2])
			{
				cout << "The computer has won!\n";
				loss++;
				break;
			}
			if (matrix[2][0] == computer &&
				matrix[2][0] == matrix[2][1] &&
				matrix[2][1] == matrix[2][2])
			{
				cout << "The computer has won!\n";
				loss++;
				break;
			}
			if (matrix[0][0] == computer &&
				matrix[0][0] == matrix[1][1] &&
				matrix[1][1] == matrix[2][2])
			{
				cout << "The computer has won!\n";
				loss++;
				break;
			}
			if (matrix[0][2] == computer &&
				matrix[0][2] == matrix[1][1] &&
				matrix[1][1] == matrix[2][0])
			{
				cout << "The computer has won!\n";
				loss++;
				break;
			}
		}

		moves=0;
		table();
		cout << "\n\n\nWould you like to play again? (Y or N) :";
		cin >> cont;
	}
}