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/* This program will play tic tac toe with the user*/
#include <iostream>
#include <iomanip>
#include <string>
#include <cstdlib>
using namespace std;
void UserInterface(); //Plays game with user
void initializeBoard(string Barray[15][15]); //Draws starting board
void drawBoard(string Barray[15][15]); //Draws new board after each turn
bool HaveWon(string Barray[15][15], string XorO); //Checks if either
the computer or the user has won
void WinMessage(int i, int j, string XorO, string Barray[15][15]);
//Notifies user that they have won/lost
int main()
{
UserInterface(); //Call user interface
cout<<"Thank you for playing!"<<endl;
}
void UserInterface()
{
int turn, p, q;
string XorO;
char PlayAgain;
PlayAgain='y';
while (PlayAgain=='y')
{
p=0;
q=0;
int i, j;
string Barray[15][15]; //Barray= Board Array
initializeBoard(Barray); //Initialize and display starting playing board
cout<<"Would you like to play as X or O?"<<endl;
cin>>XorO;
while(XorO!="X"&&XorO!="O")
{
cout<<"Please enter either X or O"<<endl;
cin>>XorO;
}
turn=1;
cout<<"What space would you like to go in? Ex:: (3,1) is the bottom
left corner"<<endl;
cout<<""<<endl;
while(turn<9)
{
cout<<"Enter coordinate 1"<<endl;
cin>>i;
cout<<"Enter coordinate 2"<<endl;
cin>>j;
while(i>3||j>3||i<1||j<1) //Check that space entered is on game board
{
cout<<"Please enter numbers between 1 and 3."<<endl;
cout<<""<<endl;
cout<<"Enter coordinate 1"<<endl;
cin>>i;
cout<<"Enter coordinate 2"<<endl;
cin>>j;
}
while(Barray[4*i-1][4*j-1]!=" ") //Check that space entered is not already taken
{
cout<<"Please play in a space that is not already taken"<<endl;
cout<<""<<endl;
cout<<"Enter coordinate 1"<<endl;
cin>>i;
cout<<"Enter coordinate 2"<<endl;
cin>>j;
}
Barray[4*i-1][4*j-1]=XorO;
while(Barray[4*p-1][4*q-1]!=" ")
{
p=rand()%3+1;
q= rand()%3+1;
}
if(XorO=="O" )
{
Barray[4*p-1][4*q-1]='X';
}
else if(XorO=="X" )
{
Barray[4*p-1][4*q-1]='O';
}
drawBoard(Barray); //Display the board after the last turn
if(HaveWon(Barray, XorO)||turn==9)
{
cout<<"Would you like to play again? y/n"<<endl; //allow the user to
play multiple games
cin>>PlayAgain;
turn=9; //ends game by breaking while loop
}
turn++; //move to next turn and repeat while loop
}
}
}
void initializeBoard(string Barray[15][15])
{
int i, j;
for(i=0;i<15;i++) //initialize all variables in array to " "
{
for(j=0;j<15;j++)
{
Barray[i][j]=" ";
}
}
for(i=0; i<15; i++) //Draw tic tac toe board
{
Barray[0][i]="-";
Barray[i][0]="|";
Barray[i][14]="|";
Barray[5][i]="|";
Barray[9][i]="|";
Barray[i][5]="|";
Barray[i][9]="|";
Barray[14][i]="-";
}
for(i=0; i<15; i++)
{
for(j=0; j<15; j++)
{
cout<<Barray[i][j];
}
cout<<endl;
}
}
void drawBoard(string Barray[15][15])
{
int i, j;
for(i=0; i<15; i++)
{
for(j=0; j<15; j++)
{
cout<<Barray[i][j];
}
cout<<endl;
}
}
bool HaveWon(string Barray[15][15], string XorO) //check if user has won
{
int i;
if(Barray[3][3]==Barray[11][11] && Barray[3][3]==Barray[7][7]&&
Barray[3][3]!=" ")
{
WinMessage(3, 3, XorO, Barray); //Send message informing player that
they have won/lost
return true;
}
else if( Barray[3][11]==Barray[7][7] && Barray[3][11]==Barray[11][3]
&& Barray[3][11]!=" " )
{
WinMessage(3, 11, XorO, Barray);
return true;
}
for(i=1;i<4;i++)
{
if(Barray[4*i-1][3]==Barray[4*i-1][7] &&
Barray[4*i-1][3]==Barray[4*i-1][11] && Barray[4*i-1][3]!=" ")
{
WinMessage(4*i-1, 3, XorO, Barray);
return true;
}
else if(Barray[3][4*i-1]==Barray[7][4*i-1] &&
Barray[3][4*i-1]==Barray[11][4*i-1] && Barray[3][4*i-1]!=" ")
{
WinMessage(3, 4*i-1, XorO, Barray);
return true;
}
}
return false;
}
void WinMessage(int i, int j, string XorO, string Barray[15][15])
{
if(Barray[i][j]==XorO)
{
cout<<"Congratulations! You have won."<<endl;
}
else if(Barray[i][j]!=XorO)
{
cout<<"Better luck next time."<<endl;
}
}
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