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#include <iostream>
using std::cin;
using std::cout;
using std::endl;
using std::ios;
// needed for random number generator
#include <ctime>
#include <cstdlib>
// for results to be copied to file
#include <fstream>
using std::ofstream;
//prototype
void printGrid(const char[]); // prints the blank grid and selection options
void goX(char[]); // determine if player can chose that spot
void goO1(char[]); // for second player
void goO2(char[]); // dumb computer function
void goO3(char[]); // Smart computer function
char check4Xwinner(char[]); // check if 'X' is the winner
char check4Owinner(char[]); // check if 'O' is the winner
char check4Tie(char[]); // check for a tie
int main ()
{
// identifying information
cout << endl;
cout << "Midterm: Tic Tac Toe \n";
cout << "Programmer: Joshua Henry \n";
// set blank tic tac toe grid
char grid[] = {' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' '};
// random number genrator for computer player
srand(time(0));
int opponent; // for user to select who they will face
char playAgain = 'Y'; // for users input if they want to play again
int xWins = 0;
int oWins = 0;
int tie = 0;
ofstream fout;
cout << endl;
cout << " Welcome to the Game of Tic Tac Toe! \n";
cout << " These are the Rules: \n";
cout << endl;
cout << " 1: You are Player 1 and will be X's and must get 3 X's in a row to win \n";
cout << " 2: Your reference board is shown on the right \n";
cout << " use (Q,W,E,A,S,D,Z,X,C) to chose your square. \n";
cout << " 3: You have 3 choices for your opponent who will be O's! \n";
cout << " 4: Your choices are another person, a dumb computer, or a smart computer \n";
cout << " which will analyze your move and try to either block or win! \n";
cout << " 5. Finally have fun and try not to lose! \n";
cout << endl;
while ((playAgain == 'Y') || (playAgain == 'y'))
{
cout << endl;
cout << " Choose your opponent! \n";
cout << " You have 3 options, please select # (1-3): \n";
cout << endl;
cout << " 1: Human Opponent \n";
cout << " 2: Dumb Computer Player \n";
cout << " 3: Smart Computer Player \n";
cout << endl;
cout << "Please enter your selection: ";
cin >> opponent;
cout << endl;
char grid[] = {' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' '};
printGrid(grid);
goX(grid);
printGrid(grid);
while (1)
{
if (check4Xwinner(grid) == 'Y')
{
printGrid(grid);
cout << endl;
cout << "X's is the winner! \n";
cout << endl;
xWins++;
break;
}
// Checks if tie
if (check4Tie(grid) == 'Y')
{
printGrid(grid);
cout << endl;
cout << "It's a tie.... \n";
cout << endl;
tie++;
break;
} // end if
// O moves. Specific player that moves is selected by user
switch(opponent)
{
case 1: // Human
printGrid(grid);
goO1(grid);
printGrid(grid);
goX(grid);
printGrid(grid);
break;
case 2: // Dumb computer
printGrid(grid);
goO2(grid);
printGrid(grid);
goX(grid);
printGrid(grid);
break;
case 3: // Smart computer
printGrid(grid);
goO3(grid);
printGrid(grid);
goX(grid);
printGrid(grid);
break;
} // end switch
// Checks if O is winner
if (check4Owinner(grid) == 'Y')
{
printGrid(grid);
cout << endl;
cout << "O's is the winner! \n";
cout << endl;
oWins++;
break;
} // end if
} // end while
char check4Xwinner(char xwins[])
{
if ((xwins[0] == 'X') && (xwins[3] == 'X') && (xwins[6] == 'X'))
return 'Y'; // X wins! 3 in a row down the left column
else if ((xwins[0] == 'X') && (xwins[4] == 'X') && (xwins[8] == 'X'))
return 'Y'; // X wins! 3 in a row diagonally across
else if ((xwins[0] == 'X') && (xwins[1] == 'X') && (xwins[2] == 'X'))
return 'Y'; // X wins! 3 in a row across the top row
else if ((xwins[1] == 'X') && (xwins[4] == 'X') && (xwins[7] == 'X'))
return 'Y'; // X wins! 3 in a row up/down the middle column
else if ((xwins[2] == 'X') && (xwins[4] == 'X') && (xwins[6] == 'X'))
return 'Y'; // X wins! 3 in a row diagonally across
else if ((xwins[3] == 'X') && (xwins[4] == 'X') && (xwins[5] == 'X'))
return 'Y'; // X wins! 3 in a row across the middle row
else if ((xwins[2] == 'X') && (xwins[5] == 'X') && (xwins[8] == 'X'))
return 'Y'; // X wins! 3 in a row down the right column
else if ((xwins[6] == 'X') && (xwins[7] == 'X') && (xwins[8] == 'X'))
return 'Y'; // X wins! 3 in a row across the bottom row
else
return 'N'; // No winner yet
} // end check4Xwinner
char check4Owinner(char oWins[])
{
if ((oWins[0] == 'O') && (oWins[3] == 'O') && (oWins[6] == 'O'))
return 'Y'; // O wins! 3 in a row down the left column
else if ((oWins[0] == 'O') && (oWins[4] == 'O') && (oWins[8] == 'O'))
return 'Y'; // O wins! 3 in a row diagonally across
else if ((oWins[0] == 'O') && (oWins[1] == 'O') && (oWins[2] == 'O'))
return 'Y'; // O wins! 3 in a row across the top row
else if ((oWins[1] == 'O') && (oWins[4] == 'O') && (oWins[7] == 'O'))
return 'Y'; // O wins! 3 in a row up/down the middle column
else if ((oWins[2] == 'O') && (oWins[4] == 'O') && (oWins[6] == 'O'))
return 'Y'; // O wins! 3 in a row diagonally across
else if ((oWins[3] == 'O') && (oWins[4] == 'O') && (oWins[5] == 'O'))
return 'Y'; // O wins! 3 in a row across the middle row
else if ((oWins[2] == 'O') && (oWins[5] == 'O') && (oWins[8] == 'O'))
return 'Y'; // O wins! 3 in a row down the right column
else if ((oWins[6] == 'O') && (oWins[7] == 'O') && (oWins[8] == 'O'))
return 'Y'; // O wins! 3 in a row across the bottom row
else
return 'N'; // No winner yet
} // end check4Owinner
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